./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-data-race.prp --file ../../../trunk/examples/svcomp/goblint-regression/06-symbeq_03-funloop_simple.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_03-funloop_simple.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 ef37663658139b358a9f093f3b929c9ceece424d125426dc196af43d94bde65c --- Real Ultimate output --- This is Ultimate 0.3.0-wip.fs.system-includes-da04345-m [2025-04-29 11:08:23,745 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-04-29 11:08:23,802 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2025-04-29 11:08:23,807 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-04-29 11:08:23,807 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-04-29 11:08:23,830 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-04-29 11:08:23,832 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-04-29 11:08:23,832 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-04-29 11:08:23,832 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-04-29 11:08:23,832 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-04-29 11:08:23,833 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-04-29 11:08:23,833 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-04-29 11:08:23,833 INFO L153 SettingsManager]: * Use SBE=true [2025-04-29 11:08:23,833 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-04-29 11:08:23,834 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-04-29 11:08:23,834 INFO L153 SettingsManager]: * sizeof long=4 [2025-04-29 11:08:23,834 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-04-29 11:08:23,834 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-04-29 11:08:23,834 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-04-29 11:08:23,834 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-04-29 11:08:23,835 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-04-29 11:08:23,835 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-04-29 11:08:23,835 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2025-04-29 11:08:23,835 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-04-29 11:08:23,835 INFO L153 SettingsManager]: * sizeof long double=12 [2025-04-29 11:08:23,835 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-04-29 11:08:23,835 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-04-29 11:08:23,835 INFO L153 SettingsManager]: * Use constant arrays=true [2025-04-29 11:08:23,835 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-04-29 11:08:23,835 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-29 11:08:23,836 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-04-29 11:08:23,836 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-29 11:08:23,836 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-04-29 11:08:23,836 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-29 11:08:23,836 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-04-29 11:08:23,836 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-29 11:08:23,837 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-04-29 11:08:23,837 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-04-29 11:08:23,837 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-04-29 11:08:23,837 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-04-29 11:08:23,837 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-04-29 11:08:23,837 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-04-29 11:08:23,837 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-04-29 11:08:23,837 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-04-29 11:08:23,837 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-04-29 11:08:23,837 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 -> ef37663658139b358a9f093f3b929c9ceece424d125426dc196af43d94bde65c [2025-04-29 11:08:24,082 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-04-29 11:08:24,091 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-04-29 11:08:24,093 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-04-29 11:08:24,094 INFO L270 PluginConnector]: Initializing CDTParser... [2025-04-29 11:08:24,094 INFO L274 PluginConnector]: CDTParser initialized [2025-04-29 11:08:24,096 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/06-symbeq_03-funloop_simple.c [2025-04-29 11:08:25,385 INFO L538 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1acc48d6a/b1f52227274f43d8b4c9cea40e0af37d/FLAG615259715 [2025-04-29 11:08:25,590 INFO L389 CDTParser]: Found 1 translation units. [2025-04-29 11:08:25,593 INFO L178 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/06-symbeq_03-funloop_simple.c [2025-04-29 11:08:25,594 WARN L117 ultiparseSymbolTable]: System include pthread.h could not be resolved by CDT -- only built-in system includes are available. [2025-04-29 11:08:25,595 WARN L117 ultiparseSymbolTable]: System include stdio.h could not be resolved by CDT -- only built-in system includes are available. [2025-04-29 11:08:25,601 INFO L432 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1acc48d6a/b1f52227274f43d8b4c9cea40e0af37d/FLAG615259715 [2025-04-29 11:08:26,535 INFO L440 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1acc48d6a/b1f52227274f43d8b4c9cea40e0af37d [2025-04-29 11:08:26,537 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-04-29 11:08:26,538 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-04-29 11:08:26,539 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-04-29 11:08:26,539 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-04-29 11:08:26,542 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-04-29 11:08:26,542 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.04 11:08:26" (1/1) ... [2025-04-29 11:08:26,543 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@49229711 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:08:26, skipping insertion in model container [2025-04-29 11:08:26,543 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.04 11:08:26" (1/1) ... [2025-04-29 11:08:26,557 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-04-29 11:08:26,701 INFO L211 PostProcessor]: Analyzing one entry point: main [2025-04-29 11:08:26,710 INFO L200 MainTranslator]: Completed pre-run [2025-04-29 11:08:26,730 INFO L211 PostProcessor]: Analyzing one entry point: main [2025-04-29 11:08:26,740 INFO L204 MainTranslator]: Completed translation [2025-04-29 11:08:26,741 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:08:26 WrapperNode [2025-04-29 11:08:26,741 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-04-29 11:08:26,742 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-04-29 11:08:26,742 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-04-29 11:08:26,742 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-04-29 11:08:26,746 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:08:26" (1/1) ... [2025-04-29 11:08:26,757 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:08:26" (1/1) ... [2025-04-29 11:08:26,779 INFO L138 Inliner]: procedures = 12, calls = 32, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 124 [2025-04-29 11:08:26,780 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-04-29 11:08:26,780 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-04-29 11:08:26,780 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-04-29 11:08:26,781 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-04-29 11:08:26,789 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:08:26" (1/1) ... [2025-04-29 11:08:26,789 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:08:26" (1/1) ... [2025-04-29 11:08:26,792 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:08:26" (1/1) ... [2025-04-29 11:08:26,792 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:08:26" (1/1) ... [2025-04-29 11:08:26,800 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:08:26" (1/1) ... [2025-04-29 11:08:26,801 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:08:26" (1/1) ... [2025-04-29 11:08:26,803 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:08:26" (1/1) ... [2025-04-29 11:08:26,805 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:08:26" (1/1) ... [2025-04-29 11:08:26,806 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:08:26" (1/1) ... [2025-04-29 11:08:26,809 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-04-29 11:08:26,810 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-04-29 11:08:26,810 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-04-29 11:08:26,810 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-04-29 11:08:26,810 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:08:26" (1/1) ... [2025-04-29 11:08:26,814 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-29 11:08:26,822 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-04-29 11:08:26,831 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 11:08:26,833 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 11:08:26,851 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2025-04-29 11:08:26,851 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-04-29 11:08:26,851 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2025-04-29 11:08:26,851 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2025-04-29 11:08:26,851 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-04-29 11:08:26,851 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-04-29 11:08:26,851 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2025-04-29 11:08:26,851 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2025-04-29 11:08:26,851 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2025-04-29 11:08:26,851 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2025-04-29 11:08:26,852 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 11:08:26,932 INFO L234 CfgBuilder]: Building ICFG [2025-04-29 11:08:26,936 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-04-29 11:08:27,202 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-04-29 11:08:27,202 INFO L283 CfgBuilder]: Performing block encoding [2025-04-29 11:08:27,223 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-04-29 11:08:27,223 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2025-04-29 11:08:27,224 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.04 11:08:27 BoogieIcfgContainer [2025-04-29 11:08:27,224 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-04-29 11:08:27,225 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-04-29 11:08:27,225 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-04-29 11:08:27,229 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-04-29 11:08:27,229 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.04 11:08:26" (1/3) ... [2025-04-29 11:08:27,230 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2045bbea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.04 11:08:27, skipping insertion in model container [2025-04-29 11:08:27,230 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:08:26" (2/3) ... [2025-04-29 11:08:27,230 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2045bbea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.04 11:08:27, skipping insertion in model container [2025-04-29 11:08:27,230 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.04 11:08:27" (3/3) ... [2025-04-29 11:08:27,231 INFO L128 eAbstractionObserver]: Analyzing ICFG 06-symbeq_03-funloop_simple.c [2025-04-29 11:08:27,239 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-04-29 11:08:27,241 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 06-symbeq_03-funloop_simple.c that has 2 procedures, 136 locations, 137 edges, 1 initial locations, 3 loop locations, and 6 error locations. [2025-04-29 11:08:27,241 INFO L490 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-04-29 11:08:27,304 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-04-29 11:08:27,333 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 139 places, 138 transitions, 280 flow [2025-04-29 11:08:27,382 INFO L116 PetriNetUnfolderBase]: 3/137 cut-off events. [2025-04-29 11:08:27,383 INFO L117 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-04-29 11:08:27,388 INFO L83 FinitePrefix]: Finished finitePrefix Result has 141 conditions, 137 events. 3/137 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 208 event pairs, 0 based on Foata normal form. 0/128 useless extension candidates. Maximal degree in co-relation 97. Up to 2 conditions per place. [2025-04-29 11:08:27,388 INFO L82 GeneralOperation]: Start removeDead. Operand has 139 places, 138 transitions, 280 flow [2025-04-29 11:08:27,391 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 138 places, 137 transitions, 277 flow [2025-04-29 11:08:27,398 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-04-29 11:08:27,405 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;@821e359, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-04-29 11:08:27,405 INFO L341 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2025-04-29 11:08:27,416 INFO L177 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-04-29 11:08:27,416 INFO L116 PetriNetUnfolderBase]: 1/68 cut-off events. [2025-04-29 11:08:27,416 INFO L117 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-04-29 11:08:27,416 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-29 11:08:27,417 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-29 11:08:27,417 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2025-04-29 11:08:27,421 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-29 11:08:27,421 INFO L85 PathProgramCache]: Analyzing trace with hash -901466558, now seen corresponding path program 1 times [2025-04-29 11:08:27,426 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-29 11:08:27,426 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2078675974] [2025-04-29 11:08:27,426 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-29 11:08:27,426 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-29 11:08:27,486 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 45 statements into 1 equivalence classes. [2025-04-29 11:08:27,495 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 45 of 45 statements. [2025-04-29 11:08:27,496 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-29 11:08:27,496 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-29 11:08:27,624 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 11:08:27,625 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-29 11:08:27,626 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2078675974] [2025-04-29 11:08:27,626 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2078675974] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-29 11:08:27,627 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-29 11:08:27,627 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-04-29 11:08:27,628 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1587358303] [2025-04-29 11:08:27,628 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-29 11:08:27,633 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-04-29 11:08:27,635 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-29 11:08:27,649 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-04-29 11:08:27,649 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-04-29 11:08:27,669 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 138 [2025-04-29 11:08:27,671 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 138 places, 137 transitions, 277 flow. Second operand has 3 states, 3 states have (on average 128.66666666666666) internal successors, (386), 3 states have internal predecessors, (386), 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 11:08:27,671 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-29 11:08:27,671 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 138 [2025-04-29 11:08:27,672 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-29 11:08:27,746 INFO L116 PetriNetUnfolderBase]: 12/255 cut-off events. [2025-04-29 11:08:27,746 INFO L117 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-04-29 11:08:27,748 INFO L83 FinitePrefix]: Finished finitePrefix Result has 287 conditions, 255 events. 12/255 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 680 event pairs, 6 based on Foata normal form. 1/237 useless extension candidates. Maximal degree in co-relation 231. Up to 27 conditions per place. [2025-04-29 11:08:27,749 INFO L140 encePairwiseOnDemand]: 135/138 looper letters, 10 selfloop transitions, 2 changer transitions 0/138 dead transitions. [2025-04-29 11:08:27,750 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 140 places, 138 transitions, 303 flow [2025-04-29 11:08:27,751 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-29 11:08:27,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-04-29 11:08:27,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 394 transitions. [2025-04-29 11:08:27,765 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.9516908212560387 [2025-04-29 11:08:27,767 INFO L175 Difference]: Start difference. First operand has 138 places, 137 transitions, 277 flow. Second operand 3 states and 394 transitions. [2025-04-29 11:08:27,767 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 140 places, 138 transitions, 303 flow [2025-04-29 11:08:27,771 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 139 places, 138 transitions, 302 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-04-29 11:08:27,775 INFO L231 Difference]: Finished difference. Result has 140 places, 138 transitions, 288 flow [2025-04-29 11:08:27,776 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=138, PETRI_DIFFERENCE_MINUEND_FLOW=276, PETRI_DIFFERENCE_MINUEND_PLACES=137, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=137, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=135, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=288, PETRI_PLACES=140, PETRI_TRANSITIONS=138} [2025-04-29 11:08:27,779 INFO L279 CegarLoopForPetriNet]: 138 programPoint places, 2 predicate places. [2025-04-29 11:08:27,779 INFO L485 AbstractCegarLoop]: Abstraction has has 140 places, 138 transitions, 288 flow [2025-04-29 11:08:27,780 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 128.66666666666666) internal successors, (386), 3 states have internal predecessors, (386), 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 11:08:27,780 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-29 11:08:27,781 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-29 11:08:27,781 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-04-29 11:08:27,781 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2025-04-29 11:08:27,782 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-29 11:08:27,782 INFO L85 PathProgramCache]: Analyzing trace with hash -2063567631, now seen corresponding path program 1 times [2025-04-29 11:08:27,782 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-29 11:08:27,782 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [103961398] [2025-04-29 11:08:27,783 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-29 11:08:27,783 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-29 11:08:27,810 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 50 statements into 1 equivalence classes. [2025-04-29 11:08:27,825 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 50 of 50 statements. [2025-04-29 11:08:27,825 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-29 11:08:27,825 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-29 11:08:27,934 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 11:08:27,935 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-29 11:08:27,935 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [103961398] [2025-04-29 11:08:27,935 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [103961398] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-29 11:08:27,935 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [704493518] [2025-04-29 11:08:27,935 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-29 11:08:27,935 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-29 11:08:27,935 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-04-29 11:08:27,938 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 11:08:27,939 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 11:08:27,982 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 50 statements into 1 equivalence classes. [2025-04-29 11:08:27,999 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 50 of 50 statements. [2025-04-29 11:08:28,000 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-29 11:08:28,000 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-29 11:08:28,002 INFO L256 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-04-29 11:08:28,004 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-29 11:08:28,023 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-04-29 11:08:28,024 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-04-29 11:08:28,024 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [704493518] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-29 11:08:28,024 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-04-29 11:08:28,024 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2025-04-29 11:08:28,025 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [878679195] [2025-04-29 11:08:28,025 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-29 11:08:28,026 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-04-29 11:08:28,026 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-29 11:08:28,026 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-04-29 11:08:28,026 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-04-29 11:08:28,041 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 138 [2025-04-29 11:08:28,041 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 140 places, 138 transitions, 288 flow. Second operand has 3 states, 3 states have (on average 128.66666666666666) internal successors, (386), 3 states have internal predecessors, (386), 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 11:08:28,042 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-29 11:08:28,042 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 138 [2025-04-29 11:08:28,042 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-29 11:08:28,111 INFO L116 PetriNetUnfolderBase]: 21/364 cut-off events. [2025-04-29 11:08:28,111 INFO L117 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-04-29 11:08:28,112 INFO L83 FinitePrefix]: Finished finitePrefix Result has 423 conditions, 364 events. 21/364 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 1320 event pairs, 10 based on Foata normal form. 3/345 useless extension candidates. Maximal degree in co-relation 384. Up to 34 conditions per place. [2025-04-29 11:08:28,113 INFO L140 encePairwiseOnDemand]: 135/138 looper letters, 14 selfloop transitions, 2 changer transitions 0/143 dead transitions. [2025-04-29 11:08:28,114 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 142 places, 143 transitions, 330 flow [2025-04-29 11:08:28,114 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-29 11:08:28,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-04-29 11:08:28,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 398 transitions. [2025-04-29 11:08:28,115 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.961352657004831 [2025-04-29 11:08:28,115 INFO L175 Difference]: Start difference. First operand has 140 places, 138 transitions, 288 flow. Second operand 3 states and 398 transitions. [2025-04-29 11:08:28,115 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 142 places, 143 transitions, 330 flow [2025-04-29 11:08:28,116 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 141 places, 143 transitions, 328 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-04-29 11:08:28,118 INFO L231 Difference]: Finished difference. Result has 142 places, 139 transitions, 298 flow [2025-04-29 11:08:28,118 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=138, PETRI_DIFFERENCE_MINUEND_FLOW=286, PETRI_DIFFERENCE_MINUEND_PLACES=139, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=138, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=136, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=298, PETRI_PLACES=142, PETRI_TRANSITIONS=139} [2025-04-29 11:08:28,118 INFO L279 CegarLoopForPetriNet]: 138 programPoint places, 4 predicate places. [2025-04-29 11:08:28,118 INFO L485 AbstractCegarLoop]: Abstraction has has 142 places, 139 transitions, 298 flow [2025-04-29 11:08:28,119 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 128.66666666666666) internal successors, (386), 3 states have internal predecessors, (386), 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 11:08:28,119 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-29 11:08:28,119 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-29 11:08:28,126 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 11:08:28,319 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 11:08:28,320 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2025-04-29 11:08:28,321 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-29 11:08:28,321 INFO L85 PathProgramCache]: Analyzing trace with hash -1562200159, now seen corresponding path program 1 times [2025-04-29 11:08:28,321 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-29 11:08:28,321 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1824870326] [2025-04-29 11:08:28,321 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-29 11:08:28,321 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-29 11:08:28,331 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 55 statements into 1 equivalence classes. [2025-04-29 11:08:28,336 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 55 of 55 statements. [2025-04-29 11:08:28,337 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-29 11:08:28,337 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-29 11:08:28,412 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 11:08:28,414 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-29 11:08:28,414 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1824870326] [2025-04-29 11:08:28,414 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1824870326] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-29 11:08:28,414 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [296109722] [2025-04-29 11:08:28,414 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-29 11:08:28,414 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-29 11:08:28,415 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-04-29 11:08:28,417 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 11:08:28,419 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 11:08:28,461 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 55 statements into 1 equivalence classes. [2025-04-29 11:08:28,476 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 55 of 55 statements. [2025-04-29 11:08:28,476 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-29 11:08:28,476 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-29 11:08:28,477 INFO L256 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-04-29 11:08:28,478 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-29 11:08:28,518 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 11:08:28,518 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-04-29 11:08:28,548 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 11:08:28,548 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [296109722] provided 0 perfect and 2 imperfect interpolant sequences [2025-04-29 11:08:28,549 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-04-29 11:08:28,550 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2025-04-29 11:08:28,551 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1975936432] [2025-04-29 11:08:28,551 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-04-29 11:08:28,551 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-04-29 11:08:28,551 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-29 11:08:28,552 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-04-29 11:08:28,552 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2025-04-29 11:08:28,578 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 124 out of 138 [2025-04-29 11:08:28,579 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 142 places, 139 transitions, 298 flow. Second operand has 10 states, 10 states have (on average 126.0) internal successors, (1260), 10 states have internal predecessors, (1260), 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 11:08:28,580 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-29 11:08:28,580 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 124 of 138 [2025-04-29 11:08:28,580 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-29 11:08:28,713 INFO L116 PetriNetUnfolderBase]: 18/369 cut-off events. [2025-04-29 11:08:28,714 INFO L117 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-04-29 11:08:28,715 INFO L83 FinitePrefix]: Finished finitePrefix Result has 436 conditions, 369 events. 18/369 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 1044 event pairs, 10 based on Foata normal form. 2/343 useless extension candidates. Maximal degree in co-relation 366. Up to 39 conditions per place. [2025-04-29 11:08:28,719 INFO L140 encePairwiseOnDemand]: 132/138 looper letters, 14 selfloop transitions, 9 changer transitions 0/147 dead transitions. [2025-04-29 11:08:28,719 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 150 places, 147 transitions, 362 flow [2025-04-29 11:08:28,720 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-04-29 11:08:28,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2025-04-29 11:08:28,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1141 transitions. [2025-04-29 11:08:28,722 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.9186795491143317 [2025-04-29 11:08:28,722 INFO L175 Difference]: Start difference. First operand has 142 places, 139 transitions, 298 flow. Second operand 9 states and 1141 transitions. [2025-04-29 11:08:28,722 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 150 places, 147 transitions, 362 flow [2025-04-29 11:08:28,723 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 149 places, 147 transitions, 360 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-04-29 11:08:28,724 INFO L231 Difference]: Finished difference. Result has 152 places, 145 transitions, 346 flow [2025-04-29 11:08:28,725 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=138, PETRI_DIFFERENCE_MINUEND_FLOW=296, PETRI_DIFFERENCE_MINUEND_PLACES=141, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=139, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=133, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=346, PETRI_PLACES=152, PETRI_TRANSITIONS=145} [2025-04-29 11:08:28,725 INFO L279 CegarLoopForPetriNet]: 138 programPoint places, 14 predicate places. [2025-04-29 11:08:28,725 INFO L485 AbstractCegarLoop]: Abstraction has has 152 places, 145 transitions, 346 flow [2025-04-29 11:08:28,726 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 126.0) internal successors, (1260), 10 states have internal predecessors, (1260), 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 11:08:28,726 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-29 11:08:28,726 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] [2025-04-29 11:08:28,734 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 11:08:28,926 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,SelfDestructingSolverStorable2 [2025-04-29 11:08:28,927 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2025-04-29 11:08:28,927 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-29 11:08:28,927 INFO L85 PathProgramCache]: Analyzing trace with hash -2111417087, now seen corresponding path program 2 times [2025-04-29 11:08:28,928 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-29 11:08:28,928 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1028538223] [2025-04-29 11:08:28,928 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-04-29 11:08:28,928 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-29 11:08:28,936 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 65 statements into 2 equivalence classes. [2025-04-29 11:08:28,951 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 50 of 65 statements. [2025-04-29 11:08:28,951 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-04-29 11:08:28,951 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-29 11:08:29,201 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 11:08:29,202 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-29 11:08:29,202 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1028538223] [2025-04-29 11:08:29,202 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1028538223] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-29 11:08:29,202 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-29 11:08:29,202 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-04-29 11:08:29,202 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [326015288] [2025-04-29 11:08:29,203 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-29 11:08:29,203 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-04-29 11:08:29,203 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-29 11:08:29,203 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-04-29 11:08:29,203 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-04-29 11:08:29,366 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 111 out of 138 [2025-04-29 11:08:29,367 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 152 places, 145 transitions, 346 flow. Second operand has 6 states, 6 states have (on average 112.5) internal successors, (675), 6 states have internal predecessors, (675), 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 11:08:29,367 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-29 11:08:29,367 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 111 of 138 [2025-04-29 11:08:29,367 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-29 11:08:29,627 INFO L116 PetriNetUnfolderBase]: 319/1463 cut-off events. [2025-04-29 11:08:29,628 INFO L117 PetriNetUnfolderBase]: For 5/5 co-relation queries the response was YES. [2025-04-29 11:08:29,631 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2146 conditions, 1463 events. 319/1463 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 9668 event pairs, 148 based on Foata normal form. 0/1373 useless extension candidates. Maximal degree in co-relation 2074. Up to 516 conditions per place. [2025-04-29 11:08:29,638 INFO L140 encePairwiseOnDemand]: 127/138 looper letters, 34 selfloop transitions, 22 changer transitions 0/174 dead transitions. [2025-04-29 11:08:29,638 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 157 places, 174 transitions, 516 flow [2025-04-29 11:08:29,638 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-04-29 11:08:29,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-04-29 11:08:29,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 723 transitions. [2025-04-29 11:08:29,640 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.8731884057971014 [2025-04-29 11:08:29,640 INFO L175 Difference]: Start difference. First operand has 152 places, 145 transitions, 346 flow. Second operand 6 states and 723 transitions. [2025-04-29 11:08:29,640 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 157 places, 174 transitions, 516 flow [2025-04-29 11:08:29,641 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 156 places, 174 transitions, 510 flow, removed 2 selfloop flow, removed 1 redundant places. [2025-04-29 11:08:29,646 INFO L231 Difference]: Finished difference. Result has 161 places, 166 transitions, 490 flow [2025-04-29 11:08:29,647 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=138, PETRI_DIFFERENCE_MINUEND_FLOW=340, PETRI_DIFFERENCE_MINUEND_PLACES=151, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=145, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=135, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=490, PETRI_PLACES=161, PETRI_TRANSITIONS=166} [2025-04-29 11:08:29,648 INFO L279 CegarLoopForPetriNet]: 138 programPoint places, 23 predicate places. [2025-04-29 11:08:29,648 INFO L485 AbstractCegarLoop]: Abstraction has has 161 places, 166 transitions, 490 flow [2025-04-29 11:08:29,649 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 112.5) internal successors, (675), 6 states have internal predecessors, (675), 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 11:08:29,649 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-29 11:08:29,649 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] [2025-04-29 11:08:29,649 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-04-29 11:08:29,649 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2025-04-29 11:08:29,650 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-29 11:08:29,651 INFO L85 PathProgramCache]: Analyzing trace with hash 167176599, now seen corresponding path program 1 times [2025-04-29 11:08:29,651 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-29 11:08:29,651 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [807459192] [2025-04-29 11:08:29,651 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-29 11:08:29,651 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-29 11:08:29,664 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 65 statements into 1 equivalence classes. [2025-04-29 11:08:29,687 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 65 of 65 statements. [2025-04-29 11:08:29,688 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-29 11:08:29,688 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-29 11:08:29,799 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 11:08:29,801 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-29 11:08:29,801 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [807459192] [2025-04-29 11:08:29,802 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [807459192] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-29 11:08:29,802 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1293559583] [2025-04-29 11:08:29,802 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-29 11:08:29,802 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-29 11:08:29,802 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-04-29 11:08:29,803 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 11:08:29,805 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 11:08:29,840 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 65 statements into 1 equivalence classes. [2025-04-29 11:08:29,857 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 65 of 65 statements. [2025-04-29 11:08:29,857 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-29 11:08:29,857 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-29 11:08:29,859 INFO L256 TraceCheckSpWp]: Trace formula consists of 150 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-04-29 11:08:29,860 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-29 11:08:29,902 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 11:08:29,902 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-04-29 11:08:29,996 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 11:08:29,996 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1293559583] provided 0 perfect and 2 imperfect interpolant sequences [2025-04-29 11:08:29,996 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-04-29 11:08:29,996 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2025-04-29 11:08:29,996 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [693683537] [2025-04-29 11:08:29,997 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-04-29 11:08:29,997 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2025-04-29 11:08:29,997 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-29 11:08:29,998 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2025-04-29 11:08:29,998 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2025-04-29 11:08:30,030 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 124 out of 138 [2025-04-29 11:08:30,033 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 161 places, 166 transitions, 490 flow. Second operand has 18 states, 18 states have (on average 126.0) internal successors, (2268), 18 states have internal predecessors, (2268), 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 11:08:30,034 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-29 11:08:30,034 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 124 of 138 [2025-04-29 11:08:30,034 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-29 11:08:30,323 INFO L116 PetriNetUnfolderBase]: 112/989 cut-off events. [2025-04-29 11:08:30,324 INFO L117 PetriNetUnfolderBase]: For 77/83 co-relation queries the response was YES. [2025-04-29 11:08:30,327 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1467 conditions, 989 events. 112/989 cut-off events. For 77/83 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 5178 event pairs, 20 based on Foata normal form. 4/925 useless extension candidates. Maximal degree in co-relation 1318. Up to 125 conditions per place. [2025-04-29 11:08:30,330 INFO L140 encePairwiseOnDemand]: 132/138 looper letters, 18 selfloop transitions, 21 changer transitions 0/184 dead transitions. [2025-04-29 11:08:30,330 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 181 places, 184 transitions, 656 flow [2025-04-29 11:08:30,330 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2025-04-29 11:08:30,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2025-04-29 11:08:30,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 2647 transitions. [2025-04-29 11:08:30,336 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.9133885438233265 [2025-04-29 11:08:30,336 INFO L175 Difference]: Start difference. First operand has 161 places, 166 transitions, 490 flow. Second operand 21 states and 2647 transitions. [2025-04-29 11:08:30,336 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 181 places, 184 transitions, 656 flow [2025-04-29 11:08:30,340 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 181 places, 184 transitions, 656 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-04-29 11:08:30,342 INFO L231 Difference]: Finished difference. Result has 186 places, 179 transitions, 620 flow [2025-04-29 11:08:30,342 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=138, PETRI_DIFFERENCE_MINUEND_FLOW=490, PETRI_DIFFERENCE_MINUEND_PLACES=161, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=166, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=155, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=620, PETRI_PLACES=186, PETRI_TRANSITIONS=179} [2025-04-29 11:08:30,343 INFO L279 CegarLoopForPetriNet]: 138 programPoint places, 48 predicate places. [2025-04-29 11:08:30,343 INFO L485 AbstractCegarLoop]: Abstraction has has 186 places, 179 transitions, 620 flow [2025-04-29 11:08:30,344 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 126.0) internal successors, (2268), 18 states have internal predecessors, (2268), 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 11:08:30,344 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-29 11:08:30,344 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] [2025-04-29 11:08:30,351 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 11:08:30,545 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-29 11:08:30,545 INFO L403 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2025-04-29 11:08:30,546 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-29 11:08:30,546 INFO L85 PathProgramCache]: Analyzing trace with hash 814513239, now seen corresponding path program 2 times [2025-04-29 11:08:30,546 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-29 11:08:30,546 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [575362065] [2025-04-29 11:08:30,546 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-04-29 11:08:30,546 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-29 11:08:30,556 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 85 statements into 2 equivalence classes. [2025-04-29 11:08:30,562 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 50 of 85 statements. [2025-04-29 11:08:30,562 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-04-29 11:08:30,562 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-29 11:08:30,769 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 11:08:30,769 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-29 11:08:30,769 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [575362065] [2025-04-29 11:08:30,769 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [575362065] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-29 11:08:30,769 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-29 11:08:30,769 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-04-29 11:08:30,769 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1497130838] [2025-04-29 11:08:30,769 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-29 11:08:30,770 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-04-29 11:08:30,770 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-29 11:08:30,770 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-04-29 11:08:30,770 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-04-29 11:08:30,909 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 111 out of 138 [2025-04-29 11:08:30,910 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 186 places, 179 transitions, 620 flow. Second operand has 6 states, 6 states have (on average 112.5) internal successors, (675), 6 states have internal predecessors, (675), 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 11:08:30,911 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-29 11:08:30,911 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 111 of 138 [2025-04-29 11:08:30,911 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-29 11:08:31,343 INFO L116 PetriNetUnfolderBase]: 461/2236 cut-off events. [2025-04-29 11:08:31,343 INFO L117 PetriNetUnfolderBase]: For 406/436 co-relation queries the response was YES. [2025-04-29 11:08:31,348 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3831 conditions, 2236 events. 461/2236 cut-off events. For 406/436 co-relation queries the response was YES. Maximal size of possible extension queue 55. Compared 16394 event pairs, 172 based on Foata normal form. 5/2109 useless extension candidates. Maximal degree in co-relation 3675. Up to 758 conditions per place. [2025-04-29 11:08:31,353 INFO L140 encePairwiseOnDemand]: 123/138 looper letters, 51 selfloop transitions, 46 changer transitions 0/232 dead transitions. [2025-04-29 11:08:31,353 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 191 places, 232 transitions, 962 flow [2025-04-29 11:08:31,354 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-04-29 11:08:31,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-04-29 11:08:31,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 739 transitions. [2025-04-29 11:08:31,355 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.892512077294686 [2025-04-29 11:08:31,355 INFO L175 Difference]: Start difference. First operand has 186 places, 179 transitions, 620 flow. Second operand 6 states and 739 transitions. [2025-04-29 11:08:31,356 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 191 places, 232 transitions, 962 flow [2025-04-29 11:08:31,359 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 185 places, 232 transitions, 938 flow, removed 6 selfloop flow, removed 6 redundant places. [2025-04-29 11:08:31,361 INFO L231 Difference]: Finished difference. Result has 190 places, 224 transitions, 950 flow [2025-04-29 11:08:31,361 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=138, PETRI_DIFFERENCE_MINUEND_FLOW=596, PETRI_DIFFERENCE_MINUEND_PLACES=180, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=179, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=160, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=950, PETRI_PLACES=190, PETRI_TRANSITIONS=224} [2025-04-29 11:08:31,361 INFO L279 CegarLoopForPetriNet]: 138 programPoint places, 52 predicate places. [2025-04-29 11:08:31,362 INFO L485 AbstractCegarLoop]: Abstraction has has 190 places, 224 transitions, 950 flow [2025-04-29 11:08:31,362 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 112.5) internal successors, (675), 6 states have internal predecessors, (675), 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 11:08:31,362 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-29 11:08:31,362 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] [2025-04-29 11:08:31,362 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-04-29 11:08:31,362 INFO L403 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2025-04-29 11:08:31,363 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-29 11:08:31,363 INFO L85 PathProgramCache]: Analyzing trace with hash 997531327, now seen corresponding path program 1 times [2025-04-29 11:08:31,363 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-29 11:08:31,363 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1705303009] [2025-04-29 11:08:31,363 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-29 11:08:31,363 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-29 11:08:31,372 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 93 statements into 1 equivalence classes. [2025-04-29 11:08:31,378 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 93 of 93 statements. [2025-04-29 11:08:31,378 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-29 11:08:31,378 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-29 11:08:31,579 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 11:08:31,579 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-29 11:08:31,579 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1705303009] [2025-04-29 11:08:31,579 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1705303009] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-29 11:08:31,580 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1773883953] [2025-04-29 11:08:31,580 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-29 11:08:31,580 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-29 11:08:31,580 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-04-29 11:08:31,582 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 11:08:31,583 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 11:08:31,625 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 93 statements into 1 equivalence classes. [2025-04-29 11:08:31,650 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 93 of 93 statements. [2025-04-29 11:08:31,650 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-29 11:08:31,650 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-29 11:08:31,652 INFO L256 TraceCheckSpWp]: Trace formula consists of 218 conjuncts, 16 conjuncts are in the unsatisfiable core [2025-04-29 11:08:31,655 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-29 11:08:31,734 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 11:08:31,735 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-04-29 11:08:31,918 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 11:08:31,920 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1773883953] provided 0 perfect and 2 imperfect interpolant sequences [2025-04-29 11:08:31,920 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-04-29 11:08:31,920 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 23 [2025-04-29 11:08:31,920 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1744793585] [2025-04-29 11:08:31,920 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-04-29 11:08:31,921 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2025-04-29 11:08:31,921 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-29 11:08:31,921 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2025-04-29 11:08:31,922 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2025-04-29 11:08:31,950 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 124 out of 138 [2025-04-29 11:08:31,952 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 190 places, 224 transitions, 950 flow. Second operand has 23 states, 23 states have (on average 126.08695652173913) internal successors, (2900), 23 states have internal predecessors, (2900), 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 11:08:31,953 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-29 11:08:31,953 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 124 of 138 [2025-04-29 11:08:31,953 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-29 11:08:32,332 INFO L116 PetriNetUnfolderBase]: 249/1590 cut-off events. [2025-04-29 11:08:32,332 INFO L117 PetriNetUnfolderBase]: For 578/613 co-relation queries the response was YES. [2025-04-29 11:08:32,337 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2948 conditions, 1590 events. 249/1590 cut-off events. For 578/613 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 10631 event pairs, 36 based on Foata normal form. 13/1521 useless extension candidates. Maximal degree in co-relation 2711. Up to 202 conditions per place. [2025-04-29 11:08:32,341 INFO L140 encePairwiseOnDemand]: 132/138 looper letters, 21 selfloop transitions, 30 changer transitions 0/241 dead transitions. [2025-04-29 11:08:32,342 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 219 places, 241 transitions, 1174 flow [2025-04-29 11:08:32,342 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2025-04-29 11:08:32,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2025-04-29 11:08:32,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 3774 transitions. [2025-04-29 11:08:32,348 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.9115942028985508 [2025-04-29 11:08:32,348 INFO L175 Difference]: Start difference. First operand has 190 places, 224 transitions, 950 flow. Second operand 30 states and 3774 transitions. [2025-04-29 11:08:32,348 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 219 places, 241 transitions, 1174 flow [2025-04-29 11:08:32,353 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 219 places, 241 transitions, 1174 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-04-29 11:08:32,356 INFO L231 Difference]: Finished difference. Result has 223 places, 234 transitions, 1102 flow [2025-04-29 11:08:32,357 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=138, PETRI_DIFFERENCE_MINUEND_FLOW=950, PETRI_DIFFERENCE_MINUEND_PLACES=190, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=224, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=201, PETRI_DIFFERENCE_SUBTRAHEND_STATES=30, PETRI_FLOW=1102, PETRI_PLACES=223, PETRI_TRANSITIONS=234} [2025-04-29 11:08:32,358 INFO L279 CegarLoopForPetriNet]: 138 programPoint places, 85 predicate places. [2025-04-29 11:08:32,358 INFO L485 AbstractCegarLoop]: Abstraction has has 223 places, 234 transitions, 1102 flow [2025-04-29 11:08:32,360 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 126.08695652173913) internal successors, (2900), 23 states have internal predecessors, (2900), 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 11:08:32,360 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-29 11:08:32,360 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] [2025-04-29 11:08:32,367 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 11:08:32,565 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-29 11:08:32,565 INFO L403 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2025-04-29 11:08:32,566 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-29 11:08:32,566 INFO L85 PathProgramCache]: Analyzing trace with hash -1380914674, now seen corresponding path program 2 times [2025-04-29 11:08:32,566 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-29 11:08:32,566 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2064170384] [2025-04-29 11:08:32,566 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-04-29 11:08:32,566 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-29 11:08:32,576 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 108 statements into 2 equivalence classes. [2025-04-29 11:08:32,580 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 58 of 108 statements. [2025-04-29 11:08:32,580 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-04-29 11:08:32,580 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-29 11:08:32,780 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 11:08:32,780 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-29 11:08:32,781 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2064170384] [2025-04-29 11:08:32,781 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2064170384] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-29 11:08:32,781 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-29 11:08:32,781 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-04-29 11:08:32,781 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1517276034] [2025-04-29 11:08:32,781 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-29 11:08:32,781 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-04-29 11:08:32,782 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-29 11:08:32,782 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-04-29 11:08:32,782 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-04-29 11:08:32,885 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 101 out of 138 [2025-04-29 11:08:32,886 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 223 places, 234 transitions, 1102 flow. Second operand has 6 states, 6 states have (on average 103.5) internal successors, (621), 6 states have internal predecessors, (621), 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 11:08:32,887 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-29 11:08:32,887 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 101 of 138 [2025-04-29 11:08:32,887 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-29 11:08:33,258 INFO L116 PetriNetUnfolderBase]: 918/3174 cut-off events. [2025-04-29 11:08:33,258 INFO L117 PetriNetUnfolderBase]: For 1903/1995 co-relation queries the response was YES. [2025-04-29 11:08:33,265 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7299 conditions, 3174 events. 918/3174 cut-off events. For 1903/1995 co-relation queries the response was YES. Maximal size of possible extension queue 68. Compared 22905 event pairs, 283 based on Foata normal form. 19/3039 useless extension candidates. Maximal degree in co-relation 7061. Up to 1571 conditions per place. [2025-04-29 11:08:33,274 INFO L140 encePairwiseOnDemand]: 123/138 looper letters, 100 selfloop transitions, 57 changer transitions 0/289 dead transitions. [2025-04-29 11:08:33,274 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 228 places, 289 transitions, 1660 flow [2025-04-29 11:08:33,275 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-04-29 11:08:33,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-04-29 11:08:33,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 689 transitions. [2025-04-29 11:08:33,276 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.8321256038647343 [2025-04-29 11:08:33,276 INFO L175 Difference]: Start difference. First operand has 223 places, 234 transitions, 1102 flow. Second operand 6 states and 689 transitions. [2025-04-29 11:08:33,276 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 228 places, 289 transitions, 1660 flow [2025-04-29 11:08:33,283 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 210 places, 289 transitions, 1614 flow, removed 5 selfloop flow, removed 18 redundant places. [2025-04-29 11:08:33,286 INFO L231 Difference]: Finished difference. Result has 215 places, 281 transitions, 1554 flow [2025-04-29 11:08:33,286 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=138, PETRI_DIFFERENCE_MINUEND_FLOW=1056, PETRI_DIFFERENCE_MINUEND_PLACES=205, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=234, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=204, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1554, PETRI_PLACES=215, PETRI_TRANSITIONS=281} [2025-04-29 11:08:33,286 INFO L279 CegarLoopForPetriNet]: 138 programPoint places, 77 predicate places. [2025-04-29 11:08:33,287 INFO L485 AbstractCegarLoop]: Abstraction has has 215 places, 281 transitions, 1554 flow [2025-04-29 11:08:33,287 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 103.5) internal successors, (621), 6 states have internal predecessors, (621), 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 11:08:33,287 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-29 11:08:33,287 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] [2025-04-29 11:08:33,287 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-04-29 11:08:33,287 INFO L403 AbstractCegarLoop]: === Iteration 9 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2025-04-29 11:08:33,288 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-29 11:08:33,288 INFO L85 PathProgramCache]: Analyzing trace with hash -221693397, now seen corresponding path program 1 times [2025-04-29 11:08:33,288 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-29 11:08:33,288 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1415953364] [2025-04-29 11:08:33,288 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-29 11:08:33,288 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-29 11:08:33,297 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 108 statements into 1 equivalence classes. [2025-04-29 11:08:33,308 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 108 of 108 statements. [2025-04-29 11:08:33,308 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-29 11:08:33,308 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-29 11:08:33,549 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 11:08:33,550 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-29 11:08:33,550 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1415953364] [2025-04-29 11:08:33,550 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1415953364] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-29 11:08:33,550 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-29 11:08:33,550 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-04-29 11:08:33,550 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1635090974] [2025-04-29 11:08:33,550 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-29 11:08:33,550 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-04-29 11:08:33,550 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-29 11:08:33,551 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-04-29 11:08:33,551 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-04-29 11:08:33,655 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 101 out of 138 [2025-04-29 11:08:33,656 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 215 places, 281 transitions, 1554 flow. Second operand has 6 states, 6 states have (on average 103.5) internal successors, (621), 6 states have internal predecessors, (621), 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 11:08:33,656 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-29 11:08:33,656 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 101 of 138 [2025-04-29 11:08:33,656 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-29 11:08:34,334 INFO L116 PetriNetUnfolderBase]: 1259/4339 cut-off events. [2025-04-29 11:08:34,334 INFO L117 PetriNetUnfolderBase]: For 4915/5044 co-relation queries the response was YES. [2025-04-29 11:08:34,346 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11218 conditions, 4339 events. 1259/4339 cut-off events. For 4915/5044 co-relation queries the response was YES. Maximal size of possible extension queue 94. Compared 33803 event pairs, 313 based on Foata normal form. 40/4198 useless extension candidates. Maximal degree in co-relation 10997. Up to 2094 conditions per place. [2025-04-29 11:08:34,360 INFO L140 encePairwiseOnDemand]: 115/138 looper letters, 137 selfloop transitions, 103 changer transitions 0/374 dead transitions. [2025-04-29 11:08:34,360 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 220 places, 374 transitions, 2484 flow [2025-04-29 11:08:34,360 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-04-29 11:08:34,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-04-29 11:08:34,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 721 transitions. [2025-04-29 11:08:34,362 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.8707729468599034 [2025-04-29 11:08:34,362 INFO L175 Difference]: Start difference. First operand has 215 places, 281 transitions, 1554 flow. Second operand 6 states and 721 transitions. [2025-04-29 11:08:34,362 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 220 places, 374 transitions, 2484 flow [2025-04-29 11:08:34,375 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 220 places, 374 transitions, 2420 flow, removed 32 selfloop flow, removed 0 redundant places. [2025-04-29 11:08:34,379 INFO L231 Difference]: Finished difference. Result has 225 places, 366 transitions, 2406 flow [2025-04-29 11:08:34,379 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=138, PETRI_DIFFERENCE_MINUEND_FLOW=1496, PETRI_DIFFERENCE_MINUEND_PLACES=215, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=281, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=35, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=229, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2406, PETRI_PLACES=225, PETRI_TRANSITIONS=366} [2025-04-29 11:08:34,380 INFO L279 CegarLoopForPetriNet]: 138 programPoint places, 87 predicate places. [2025-04-29 11:08:34,380 INFO L485 AbstractCegarLoop]: Abstraction has has 225 places, 366 transitions, 2406 flow [2025-04-29 11:08:34,380 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 103.5) internal successors, (621), 6 states have internal predecessors, (621), 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 11:08:34,380 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-29 11:08:34,380 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] [2025-04-29 11:08:34,381 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-04-29 11:08:34,381 INFO L403 AbstractCegarLoop]: === Iteration 10 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2025-04-29 11:08:34,381 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-29 11:08:34,381 INFO L85 PathProgramCache]: Analyzing trace with hash -1989847141, now seen corresponding path program 1 times [2025-04-29 11:08:34,381 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-29 11:08:34,381 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [242179083] [2025-04-29 11:08:34,382 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-29 11:08:34,382 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-29 11:08:34,391 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 119 statements into 1 equivalence classes. [2025-04-29 11:08:34,402 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 119 of 119 statements. [2025-04-29 11:08:34,403 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-29 11:08:34,403 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-29 11:08:34,685 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 11:08:34,686 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-29 11:08:34,686 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [242179083] [2025-04-29 11:08:34,686 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [242179083] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-29 11:08:34,686 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-29 11:08:34,686 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2025-04-29 11:08:34,686 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [938270334] [2025-04-29 11:08:34,686 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-29 11:08:34,687 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-04-29 11:08:34,687 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-29 11:08:34,687 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-04-29 11:08:34,687 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2025-04-29 11:08:35,224 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 111 out of 138 [2025-04-29 11:08:35,225 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 225 places, 366 transitions, 2406 flow. Second operand has 9 states, 9 states have (on average 112.77777777777777) internal successors, (1015), 9 states have internal predecessors, (1015), 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 11:08:35,226 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-29 11:08:35,226 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 111 of 138 [2025-04-29 11:08:35,226 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-29 11:08:36,245 INFO L116 PetriNetUnfolderBase]: 2071/7884 cut-off events. [2025-04-29 11:08:36,246 INFO L117 PetriNetUnfolderBase]: For 10036/10238 co-relation queries the response was YES. [2025-04-29 11:08:36,273 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21667 conditions, 7884 events. 2071/7884 cut-off events. For 10036/10238 co-relation queries the response was YES. Maximal size of possible extension queue 157. Compared 70539 event pairs, 280 based on Foata normal form. 71/7838 useless extension candidates. Maximal degree in co-relation 21429. Up to 1209 conditions per place. [2025-04-29 11:08:36,295 INFO L140 encePairwiseOnDemand]: 122/138 looper letters, 74 selfloop transitions, 19 changer transitions 1/432 dead transitions. [2025-04-29 11:08:36,295 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 233 places, 432 transitions, 2744 flow [2025-04-29 11:08:36,295 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-04-29 11:08:36,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2025-04-29 11:08:36,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1092 transitions. [2025-04-29 11:08:36,297 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.8792270531400966 [2025-04-29 11:08:36,297 INFO L175 Difference]: Start difference. First operand has 225 places, 366 transitions, 2406 flow. Second operand 9 states and 1092 transitions. [2025-04-29 11:08:36,297 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 233 places, 432 transitions, 2744 flow [2025-04-29 11:08:36,352 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 233 places, 432 transitions, 2630 flow, removed 57 selfloop flow, removed 0 redundant places. [2025-04-29 11:08:36,355 INFO L231 Difference]: Finished difference. Result has 240 places, 384 transitions, 2438 flow [2025-04-29 11:08:36,356 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=138, PETRI_DIFFERENCE_MINUEND_FLOW=2292, PETRI_DIFFERENCE_MINUEND_PLACES=225, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=366, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=352, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=2438, PETRI_PLACES=240, PETRI_TRANSITIONS=384} [2025-04-29 11:08:36,357 INFO L279 CegarLoopForPetriNet]: 138 programPoint places, 102 predicate places. [2025-04-29 11:08:36,357 INFO L485 AbstractCegarLoop]: Abstraction has has 240 places, 384 transitions, 2438 flow [2025-04-29 11:08:36,357 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 112.77777777777777) internal successors, (1015), 9 states have internal predecessors, (1015), 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 11:08:36,357 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-29 11:08:36,357 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] [2025-04-29 11:08:36,357 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2025-04-29 11:08:36,358 INFO L403 AbstractCegarLoop]: === Iteration 11 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2025-04-29 11:08:36,358 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-29 11:08:36,358 INFO L85 PathProgramCache]: Analyzing trace with hash 1856927769, now seen corresponding path program 2 times [2025-04-29 11:08:36,358 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-29 11:08:36,358 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1221808461] [2025-04-29 11:08:36,358 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-04-29 11:08:36,358 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-29 11:08:36,368 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 119 statements into 2 equivalence classes. [2025-04-29 11:08:36,375 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 69 of 119 statements. [2025-04-29 11:08:36,376 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-04-29 11:08:36,376 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-29 11:08:36,597 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 11:08:36,597 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-29 11:08:36,597 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1221808461] [2025-04-29 11:08:36,597 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1221808461] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-29 11:08:36,597 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-29 11:08:36,597 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2025-04-29 11:08:36,597 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [49171316] [2025-04-29 11:08:36,598 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-29 11:08:36,598 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-04-29 11:08:36,598 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-29 11:08:36,598 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-04-29 11:08:36,598 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2025-04-29 11:08:37,274 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 111 out of 138 [2025-04-29 11:08:37,275 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 240 places, 384 transitions, 2438 flow. Second operand has 9 states, 9 states have (on average 112.77777777777777) internal successors, (1015), 9 states have internal predecessors, (1015), 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 11:08:37,275 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-29 11:08:37,275 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 111 of 138 [2025-04-29 11:08:37,275 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-29 11:08:38,320 INFO L116 PetriNetUnfolderBase]: 2350/8616 cut-off events. [2025-04-29 11:08:38,321 INFO L117 PetriNetUnfolderBase]: For 12133/12431 co-relation queries the response was YES. [2025-04-29 11:08:38,353 INFO L83 FinitePrefix]: Finished finitePrefix Result has 25233 conditions, 8616 events. 2350/8616 cut-off events. For 12133/12431 co-relation queries the response was YES. Maximal size of possible extension queue 214. Compared 78593 event pairs, 292 based on Foata normal form. 68/8565 useless extension candidates. Maximal degree in co-relation 24987. Up to 1271 conditions per place. [2025-04-29 11:08:38,378 INFO L140 encePairwiseOnDemand]: 125/138 looper letters, 91 selfloop transitions, 25 changer transitions 0/454 dead transitions. [2025-04-29 11:08:38,378 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 248 places, 454 transitions, 2958 flow [2025-04-29 11:08:38,378 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-04-29 11:08:38,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2025-04-29 11:08:38,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1086 transitions. [2025-04-29 11:08:38,380 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.8743961352657005 [2025-04-29 11:08:38,380 INFO L175 Difference]: Start difference. First operand has 240 places, 384 transitions, 2438 flow. Second operand 9 states and 1086 transitions. [2025-04-29 11:08:38,380 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 248 places, 454 transitions, 2958 flow [2025-04-29 11:08:38,545 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 248 places, 454 transitions, 2958 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-04-29 11:08:38,551 INFO L231 Difference]: Finished difference. Result has 255 places, 398 transitions, 2627 flow [2025-04-29 11:08:38,551 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=138, PETRI_DIFFERENCE_MINUEND_FLOW=2438, PETRI_DIFFERENCE_MINUEND_PLACES=240, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=384, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=362, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=2627, PETRI_PLACES=255, PETRI_TRANSITIONS=398} [2025-04-29 11:08:38,552 INFO L279 CegarLoopForPetriNet]: 138 programPoint places, 117 predicate places. [2025-04-29 11:08:38,552 INFO L485 AbstractCegarLoop]: Abstraction has has 255 places, 398 transitions, 2627 flow [2025-04-29 11:08:38,552 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 112.77777777777777) internal successors, (1015), 9 states have internal predecessors, (1015), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-29 11:08:38,552 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-29 11:08:38,553 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] [2025-04-29 11:08:38,553 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2025-04-29 11:08:38,553 INFO L403 AbstractCegarLoop]: === Iteration 12 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2025-04-29 11:08:38,553 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-29 11:08:38,554 INFO L85 PathProgramCache]: Analyzing trace with hash 664600975, now seen corresponding path program 3 times [2025-04-29 11:08:38,554 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-29 11:08:38,554 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1537237318] [2025-04-29 11:08:38,554 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-04-29 11:08:38,554 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-29 11:08:38,566 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 119 statements into 11 equivalence classes. [2025-04-29 11:08:38,578 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) and asserted 69 of 119 statements. [2025-04-29 11:08:38,578 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2025-04-29 11:08:38,578 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-29 11:08:38,753 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 11:08:38,753 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-29 11:08:38,753 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1537237318] [2025-04-29 11:08:38,753 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1537237318] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-29 11:08:38,753 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-29 11:08:38,753 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2025-04-29 11:08:38,753 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1857659630] [2025-04-29 11:08:38,753 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-29 11:08:38,754 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-04-29 11:08:38,754 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-29 11:08:38,754 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-04-29 11:08:38,754 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2025-04-29 11:08:39,451 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 111 out of 138 [2025-04-29 11:08:39,452 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 255 places, 398 transitions, 2627 flow. Second operand has 9 states, 9 states have (on average 112.77777777777777) internal successors, (1015), 9 states have internal predecessors, (1015), 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 11:08:39,452 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-29 11:08:39,452 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 111 of 138 [2025-04-29 11:08:39,452 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-29 11:08:40,931 INFO L116 PetriNetUnfolderBase]: 2692/10070 cut-off events. [2025-04-29 11:08:40,931 INFO L117 PetriNetUnfolderBase]: For 17296/17711 co-relation queries the response was YES. [2025-04-29 11:08:40,980 INFO L83 FinitePrefix]: Finished finitePrefix Result has 30983 conditions, 10070 events. 2692/10070 cut-off events. For 17296/17711 co-relation queries the response was YES. Maximal size of possible extension queue 218. Compared 95213 event pairs, 308 based on Foata normal form. 72/10007 useless extension candidates. Maximal degree in co-relation 30729. Up to 1579 conditions per place. [2025-04-29 11:08:41,009 INFO L140 encePairwiseOnDemand]: 124/138 looper letters, 116 selfloop transitions, 23 changer transitions 0/477 dead transitions. [2025-04-29 11:08:41,010 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 263 places, 477 transitions, 3428 flow [2025-04-29 11:08:41,010 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-04-29 11:08:41,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2025-04-29 11:08:41,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1097 transitions. [2025-04-29 11:08:41,013 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.8832528180354268 [2025-04-29 11:08:41,013 INFO L175 Difference]: Start difference. First operand has 255 places, 398 transitions, 2627 flow. Second operand 9 states and 1097 transitions. [2025-04-29 11:08:41,013 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 263 places, 477 transitions, 3428 flow [2025-04-29 11:08:41,250 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 262 places, 477 transitions, 3384 flow, removed 17 selfloop flow, removed 1 redundant places. [2025-04-29 11:08:41,254 INFO L231 Difference]: Finished difference. Result has 269 places, 417 transitions, 2852 flow [2025-04-29 11:08:41,254 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=138, PETRI_DIFFERENCE_MINUEND_FLOW=2599, PETRI_DIFFERENCE_MINUEND_PLACES=254, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=398, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=381, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=2852, PETRI_PLACES=269, PETRI_TRANSITIONS=417} [2025-04-29 11:08:41,256 INFO L279 CegarLoopForPetriNet]: 138 programPoint places, 131 predicate places. [2025-04-29 11:08:41,256 INFO L485 AbstractCegarLoop]: Abstraction has has 269 places, 417 transitions, 2852 flow [2025-04-29 11:08:41,256 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 112.77777777777777) internal successors, (1015), 9 states have internal predecessors, (1015), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-29 11:08:41,257 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-29 11:08:41,257 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] [2025-04-29 11:08:41,257 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2025-04-29 11:08:41,257 INFO L403 AbstractCegarLoop]: === Iteration 13 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2025-04-29 11:08:41,257 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-29 11:08:41,258 INFO L85 PathProgramCache]: Analyzing trace with hash 518254691, now seen corresponding path program 4 times [2025-04-29 11:08:41,258 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-29 11:08:41,258 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [365577728] [2025-04-29 11:08:41,258 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-04-29 11:08:41,258 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-29 11:08:41,333 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 119 statements into 2 equivalence classes. [2025-04-29 11:08:41,342 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 1 check-sat command(s) and asserted 101 of 119 statements. [2025-04-29 11:08:41,344 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 1 check-sat command(s) [2025-04-29 11:08:41,344 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-29 11:08:41,700 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2025-04-29 11:08:41,700 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-29 11:08:41,700 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [365577728] [2025-04-29 11:08:41,700 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [365577728] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-29 11:08:41,700 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-29 11:08:41,700 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2025-04-29 11:08:41,700 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1318950868] [2025-04-29 11:08:41,700 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-29 11:08:41,700 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-04-29 11:08:41,700 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-29 11:08:41,701 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-04-29 11:08:41,701 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2025-04-29 11:08:42,462 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 111 out of 138 [2025-04-29 11:08:42,463 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 269 places, 417 transitions, 2852 flow. Second operand has 10 states, 10 states have (on average 112.6) internal successors, (1126), 10 states have internal predecessors, (1126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-29 11:08:42,463 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-29 11:08:42,463 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 111 of 138 [2025-04-29 11:08:42,463 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-29 11:08:43,954 INFO L116 PetriNetUnfolderBase]: 2982/10853 cut-off events. [2025-04-29 11:08:43,954 INFO L117 PetriNetUnfolderBase]: For 22219/22733 co-relation queries the response was YES. [2025-04-29 11:08:43,990 INFO L83 FinitePrefix]: Finished finitePrefix Result has 34728 conditions, 10853 events. 2982/10853 cut-off events. For 22219/22733 co-relation queries the response was YES. Maximal size of possible extension queue 276. Compared 104088 event pairs, 313 based on Foata normal form. 120/10838 useless extension candidates. Maximal degree in co-relation 34466. Up to 1647 conditions per place. [2025-04-29 11:08:44,019 INFO L140 encePairwiseOnDemand]: 121/138 looper letters, 121 selfloop transitions, 40 changer transitions 0/499 dead transitions. [2025-04-29 11:08:44,019 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 278 places, 499 transitions, 3792 flow [2025-04-29 11:08:44,020 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-04-29 11:08:44,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2025-04-29 11:08:44,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1201 transitions. [2025-04-29 11:08:44,021 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.8702898550724638 [2025-04-29 11:08:44,021 INFO L175 Difference]: Start difference. First operand has 269 places, 417 transitions, 2852 flow. Second operand 10 states and 1201 transitions. [2025-04-29 11:08:44,021 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 278 places, 499 transitions, 3792 flow [2025-04-29 11:08:44,119 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 278 places, 499 transitions, 3748 flow, removed 22 selfloop flow, removed 0 redundant places. [2025-04-29 11:08:44,126 INFO L231 Difference]: Finished difference. Result has 283 places, 433 transitions, 3107 flow [2025-04-29 11:08:44,126 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=138, PETRI_DIFFERENCE_MINUEND_FLOW=2824, PETRI_DIFFERENCE_MINUEND_PLACES=269, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=417, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=24, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=382, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=3107, PETRI_PLACES=283, PETRI_TRANSITIONS=433} [2025-04-29 11:08:44,127 INFO L279 CegarLoopForPetriNet]: 138 programPoint places, 145 predicate places. [2025-04-29 11:08:44,128 INFO L485 AbstractCegarLoop]: Abstraction has has 283 places, 433 transitions, 3107 flow [2025-04-29 11:08:44,128 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 112.6) internal successors, (1126), 10 states have internal predecessors, (1126), 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 11:08:44,128 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-29 11:08:44,128 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] [2025-04-29 11:08:44,128 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2025-04-29 11:08:44,129 INFO L403 AbstractCegarLoop]: === Iteration 14 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2025-04-29 11:08:44,129 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-29 11:08:44,129 INFO L85 PathProgramCache]: Analyzing trace with hash -1011089787, now seen corresponding path program 5 times [2025-04-29 11:08:44,130 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-29 11:08:44,130 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [792468764] [2025-04-29 11:08:44,130 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-04-29 11:08:44,131 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-29 11:08:44,145 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 119 statements into 11 equivalence classes. [2025-04-29 11:08:44,161 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) and asserted 119 of 119 statements. [2025-04-29 11:08:44,161 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) [2025-04-29 11:08:44,161 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-29 11:08:44,678 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 207 trivial. 0 not checked. [2025-04-29 11:08:44,678 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-29 11:08:44,678 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [792468764] [2025-04-29 11:08:44,678 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [792468764] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-29 11:08:44,678 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [601635433] [2025-04-29 11:08:44,678 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-04-29 11:08:44,678 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-29 11:08:44,678 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-04-29 11:08:44,680 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 11:08:44,682 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 11:08:44,737 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 119 statements into 11 equivalence classes. [2025-04-29 11:08:44,782 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) and asserted 119 of 119 statements. [2025-04-29 11:08:44,782 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) [2025-04-29 11:08:44,782 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-29 11:08:44,784 INFO L256 TraceCheckSpWp]: Trace formula consists of 280 conjuncts, 26 conjuncts are in the unsatisfiable core [2025-04-29 11:08:44,786 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-29 11:08:44,976 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 13 treesize of output 9 [2025-04-29 11:08:45,062 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 11:08:45,062 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-04-29 11:08:45,062 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [601635433] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-29 11:08:45,062 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-04-29 11:08:45,062 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [10] total 18 [2025-04-29 11:08:45,063 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1408116032] [2025-04-29 11:08:45,063 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-29 11:08:45,063 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-04-29 11:08:45,063 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-29 11:08:45,063 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-04-29 11:08:45,063 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=251, Unknown=0, NotChecked=0, Total=306 [2025-04-29 11:08:45,639 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 111 out of 138 [2025-04-29 11:08:45,640 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 283 places, 433 transitions, 3107 flow. Second operand has 10 states, 10 states have (on average 112.6) internal successors, (1126), 10 states have internal predecessors, (1126), 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 11:08:45,640 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-29 11:08:45,640 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 111 of 138 [2025-04-29 11:08:45,640 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-29 11:08:47,307 INFO L116 PetriNetUnfolderBase]: 2997/10911 cut-off events. [2025-04-29 11:08:47,308 INFO L117 PetriNetUnfolderBase]: For 27115/27722 co-relation queries the response was YES. [2025-04-29 11:08:47,379 INFO L83 FinitePrefix]: Finished finitePrefix Result has 36229 conditions, 10911 events. 2997/10911 cut-off events. For 27115/27722 co-relation queries the response was YES. Maximal size of possible extension queue 280. Compared 104938 event pairs, 363 based on Foata normal form. 106/10863 useless extension candidates. Maximal degree in co-relation 35960. Up to 1677 conditions per place. [2025-04-29 11:08:47,414 INFO L140 encePairwiseOnDemand]: 123/138 looper letters, 114 selfloop transitions, 42 changer transitions 0/494 dead transitions. [2025-04-29 11:08:47,414 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 292 places, 494 transitions, 4024 flow [2025-04-29 11:08:47,414 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-04-29 11:08:47,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2025-04-29 11:08:47,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1202 transitions. [2025-04-29 11:08:47,416 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.8710144927536232 [2025-04-29 11:08:47,416 INFO L175 Difference]: Start difference. First operand has 283 places, 433 transitions, 3107 flow. Second operand 10 states and 1202 transitions. [2025-04-29 11:08:47,416 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 292 places, 494 transitions, 4024 flow [2025-04-29 11:08:47,518 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 288 places, 494 transitions, 3894 flow, removed 29 selfloop flow, removed 4 redundant places. [2025-04-29 11:08:47,523 INFO L231 Difference]: Finished difference. Result has 295 places, 451 transitions, 3407 flow [2025-04-29 11:08:47,523 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=138, PETRI_DIFFERENCE_MINUEND_FLOW=3024, PETRI_DIFFERENCE_MINUEND_PLACES=279, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=433, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=24, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=396, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=3407, PETRI_PLACES=295, PETRI_TRANSITIONS=451} [2025-04-29 11:08:47,524 INFO L279 CegarLoopForPetriNet]: 138 programPoint places, 157 predicate places. [2025-04-29 11:08:47,524 INFO L485 AbstractCegarLoop]: Abstraction has has 295 places, 451 transitions, 3407 flow [2025-04-29 11:08:47,524 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 112.6) internal successors, (1126), 10 states have internal predecessors, (1126), 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 11:08:47,524 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-29 11:08:47,525 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] [2025-04-29 11:08:47,530 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2025-04-29 11:08:47,725 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,SelfDestructingSolverStorable13 [2025-04-29 11:08:47,725 INFO L403 AbstractCegarLoop]: === Iteration 15 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2025-04-29 11:08:47,726 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-29 11:08:47,726 INFO L85 PathProgramCache]: Analyzing trace with hash 1744697761, now seen corresponding path program 6 times [2025-04-29 11:08:47,726 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-29 11:08:47,726 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2002366574] [2025-04-29 11:08:47,726 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-04-29 11:08:47,726 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-29 11:08:47,737 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 119 statements into 11 equivalence classes. [2025-04-29 11:08:47,743 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) and asserted 69 of 119 statements. [2025-04-29 11:08:47,743 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2025-04-29 11:08:47,743 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-29 11:08:47,918 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 11:08:47,918 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-29 11:08:47,918 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2002366574] [2025-04-29 11:08:47,918 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2002366574] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-29 11:08:47,918 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-29 11:08:47,919 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2025-04-29 11:08:47,919 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1169915200] [2025-04-29 11:08:47,919 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-29 11:08:47,919 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-04-29 11:08:47,919 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-29 11:08:47,920 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-04-29 11:08:47,920 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2025-04-29 11:08:48,506 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 111 out of 138 [2025-04-29 11:08:48,507 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 295 places, 451 transitions, 3407 flow. Second operand has 9 states, 9 states have (on average 112.77777777777777) internal successors, (1015), 9 states have internal predecessors, (1015), 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 11:08:48,507 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-29 11:08:48,507 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 111 of 138 [2025-04-29 11:08:48,507 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-29 11:08:50,341 INFO L116 PetriNetUnfolderBase]: 3318/12184 cut-off events. [2025-04-29 11:08:50,342 INFO L117 PetriNetUnfolderBase]: For 35951/36684 co-relation queries the response was YES. [2025-04-29 11:08:50,416 INFO L83 FinitePrefix]: Finished finitePrefix Result has 41509 conditions, 12184 events. 3318/12184 cut-off events. For 35951/36684 co-relation queries the response was YES. Maximal size of possible extension queue 344. Compared 120311 event pairs, 345 based on Foata normal form. 107/12133 useless extension candidates. Maximal degree in co-relation 41233. Up to 1876 conditions per place. [2025-04-29 11:08:50,448 INFO L140 encePairwiseOnDemand]: 124/138 looper letters, 153 selfloop transitions, 37 changer transitions 0/528 dead transitions. [2025-04-29 11:08:50,448 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 303 places, 528 transitions, 4621 flow [2025-04-29 11:08:50,448 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-04-29 11:08:50,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2025-04-29 11:08:50,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1095 transitions. [2025-04-29 11:08:50,449 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.8816425120772947 [2025-04-29 11:08:50,449 INFO L175 Difference]: Start difference. First operand has 295 places, 451 transitions, 3407 flow. Second operand 9 states and 1095 transitions. [2025-04-29 11:08:50,449 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 303 places, 528 transitions, 4621 flow [2025-04-29 11:08:50,576 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 301 places, 528 transitions, 4464 flow, removed 71 selfloop flow, removed 2 redundant places. [2025-04-29 11:08:50,580 INFO L231 Difference]: Finished difference. Result has 307 places, 468 transitions, 3689 flow [2025-04-29 11:08:50,580 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=138, PETRI_DIFFERENCE_MINUEND_FLOW=3318, PETRI_DIFFERENCE_MINUEND_PLACES=293, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=451, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=24, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=419, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=3689, PETRI_PLACES=307, PETRI_TRANSITIONS=468} [2025-04-29 11:08:50,581 INFO L279 CegarLoopForPetriNet]: 138 programPoint places, 169 predicate places. [2025-04-29 11:08:50,581 INFO L485 AbstractCegarLoop]: Abstraction has has 307 places, 468 transitions, 3689 flow [2025-04-29 11:08:50,581 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 112.77777777777777) internal successors, (1015), 9 states have internal predecessors, (1015), 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 11:08:50,581 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-29 11:08:50,581 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] [2025-04-29 11:08:50,581 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2025-04-29 11:08:50,581 INFO L403 AbstractCegarLoop]: === Iteration 16 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2025-04-29 11:08:50,582 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-29 11:08:50,582 INFO L85 PathProgramCache]: Analyzing trace with hash 159586925, now seen corresponding path program 7 times [2025-04-29 11:08:50,582 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-29 11:08:50,582 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [899278260] [2025-04-29 11:08:50,582 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2025-04-29 11:08:50,582 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-29 11:08:50,590 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 119 statements into 1 equivalence classes. [2025-04-29 11:08:50,597 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 119 of 119 statements. [2025-04-29 11:08:50,597 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-29 11:08:50,597 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-29 11:08:50,754 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 11:08:50,754 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-29 11:08:50,754 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [899278260] [2025-04-29 11:08:50,754 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [899278260] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-29 11:08:50,754 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-29 11:08:50,754 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2025-04-29 11:08:50,754 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [432201397] [2025-04-29 11:08:50,755 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-29 11:08:50,755 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-04-29 11:08:50,755 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-29 11:08:50,755 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-04-29 11:08:50,756 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2025-04-29 11:08:51,119 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 111 out of 138 [2025-04-29 11:08:51,120 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 307 places, 468 transitions, 3689 flow. Second operand has 9 states, 9 states have (on average 112.77777777777777) internal successors, (1015), 9 states have internal predecessors, (1015), 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 11:08:51,120 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-29 11:08:51,120 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 111 of 138 [2025-04-29 11:08:51,120 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-29 11:08:52,902 INFO L116 PetriNetUnfolderBase]: 3606/13009 cut-off events. [2025-04-29 11:08:52,902 INFO L117 PetriNetUnfolderBase]: For 40603/41431 co-relation queries the response was YES. [2025-04-29 11:08:52,965 INFO L83 FinitePrefix]: Finished finitePrefix Result has 44794 conditions, 13009 events. 3606/13009 cut-off events. For 40603/41431 co-relation queries the response was YES. Maximal size of possible extension queue 407. Compared 130533 event pairs, 390 based on Foata normal form. 168/13014 useless extension candidates. Maximal degree in co-relation 44513. Up to 2056 conditions per place. [2025-04-29 11:08:52,995 INFO L140 encePairwiseOnDemand]: 122/138 looper letters, 147 selfloop transitions, 52 changer transitions 0/537 dead transitions. [2025-04-29 11:08:52,995 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 315 places, 537 transitions, 4948 flow [2025-04-29 11:08:52,996 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-04-29 11:08:52,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2025-04-29 11:08:52,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1095 transitions. [2025-04-29 11:08:52,996 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.8816425120772947 [2025-04-29 11:08:52,996 INFO L175 Difference]: Start difference. First operand has 307 places, 468 transitions, 3689 flow. Second operand 9 states and 1095 transitions. [2025-04-29 11:08:52,996 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 315 places, 537 transitions, 4948 flow [2025-04-29 11:08:53,126 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 313 places, 537 transitions, 4848 flow, removed 29 selfloop flow, removed 2 redundant places. [2025-04-29 11:08:53,131 INFO L231 Difference]: Finished difference. Result has 317 places, 482 transitions, 3972 flow [2025-04-29 11:08:53,131 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=138, PETRI_DIFFERENCE_MINUEND_FLOW=3618, PETRI_DIFFERENCE_MINUEND_PLACES=305, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=468, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=38, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=420, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=3972, PETRI_PLACES=317, PETRI_TRANSITIONS=482} [2025-04-29 11:08:53,131 INFO L279 CegarLoopForPetriNet]: 138 programPoint places, 179 predicate places. [2025-04-29 11:08:53,131 INFO L485 AbstractCegarLoop]: Abstraction has has 317 places, 482 transitions, 3972 flow [2025-04-29 11:08:53,132 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 112.77777777777777) internal successors, (1015), 9 states have internal predecessors, (1015), 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 11:08:53,132 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-29 11:08:53,132 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] [2025-04-29 11:08:53,132 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2025-04-29 11:08:53,132 INFO L403 AbstractCegarLoop]: === Iteration 17 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2025-04-29 11:08:53,133 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-29 11:08:53,133 INFO L85 PathProgramCache]: Analyzing trace with hash -1966470939, now seen corresponding path program 8 times [2025-04-29 11:08:53,133 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-29 11:08:53,133 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1568966256] [2025-04-29 11:08:53,133 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-04-29 11:08:53,133 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-29 11:08:53,141 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 119 statements into 2 equivalence classes. [2025-04-29 11:08:53,146 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 69 of 119 statements. [2025-04-29 11:08:53,146 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-04-29 11:08:53,146 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-29 11:08:53,266 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 11:08:53,266 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-29 11:08:53,266 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1568966256] [2025-04-29 11:08:53,266 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1568966256] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-29 11:08:53,266 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-29 11:08:53,266 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2025-04-29 11:08:53,266 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1033926385] [2025-04-29 11:08:53,267 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-29 11:08:53,267 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-04-29 11:08:53,267 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-29 11:08:53,267 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-04-29 11:08:53,267 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2025-04-29 11:08:53,745 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 111 out of 138 [2025-04-29 11:08:53,746 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 317 places, 482 transitions, 3972 flow. Second operand has 9 states, 9 states have (on average 112.77777777777777) internal successors, (1015), 9 states have internal predecessors, (1015), 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 11:08:53,746 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-29 11:08:53,746 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 111 of 138 [2025-04-29 11:08:53,746 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-29 11:08:55,584 INFO L116 PetriNetUnfolderBase]: 3596/13119 cut-off events. [2025-04-29 11:08:55,584 INFO L117 PetriNetUnfolderBase]: For 44407/45144 co-relation queries the response was YES. [2025-04-29 11:08:55,651 INFO L83 FinitePrefix]: Finished finitePrefix Result has 45772 conditions, 13119 events. 3596/13119 cut-off events. For 44407/45144 co-relation queries the response was YES. Maximal size of possible extension queue 406. Compared 132166 event pairs, 347 based on Foata normal form. 163/13138 useless extension candidates. Maximal degree in co-relation 45487. Up to 2047 conditions per place. [2025-04-29 11:08:55,682 INFO L140 encePairwiseOnDemand]: 124/138 looper letters, 165 selfloop transitions, 51 changer transitions 0/554 dead transitions. [2025-04-29 11:08:55,682 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 325 places, 554 transitions, 5130 flow [2025-04-29 11:08:55,682 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-04-29 11:08:55,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2025-04-29 11:08:55,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1092 transitions. [2025-04-29 11:08:55,683 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.8792270531400966 [2025-04-29 11:08:55,683 INFO L175 Difference]: Start difference. First operand has 317 places, 482 transitions, 3972 flow. Second operand 9 states and 1092 transitions. [2025-04-29 11:08:55,683 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 325 places, 554 transitions, 5130 flow [2025-04-29 11:08:55,830 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 322 places, 554 transitions, 5005 flow, removed 29 selfloop flow, removed 3 redundant places. [2025-04-29 11:08:55,834 INFO L231 Difference]: Finished difference. Result has 326 places, 488 transitions, 4116 flow [2025-04-29 11:08:55,835 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=138, PETRI_DIFFERENCE_MINUEND_FLOW=3867, PETRI_DIFFERENCE_MINUEND_PLACES=314, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=482, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=45, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=434, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=4116, PETRI_PLACES=326, PETRI_TRANSITIONS=488} [2025-04-29 11:08:55,835 INFO L279 CegarLoopForPetriNet]: 138 programPoint places, 188 predicate places. [2025-04-29 11:08:55,835 INFO L485 AbstractCegarLoop]: Abstraction has has 326 places, 488 transitions, 4116 flow [2025-04-29 11:08:55,835 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 112.77777777777777) internal successors, (1015), 9 states have internal predecessors, (1015), 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 11:08:55,835 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-29 11:08:55,835 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] [2025-04-29 11:08:55,835 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2025-04-29 11:08:55,835 INFO L403 AbstractCegarLoop]: === Iteration 18 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2025-04-29 11:08:55,836 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-29 11:08:55,836 INFO L85 PathProgramCache]: Analyzing trace with hash -489737971, now seen corresponding path program 9 times [2025-04-29 11:08:55,836 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-29 11:08:55,836 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1578667103] [2025-04-29 11:08:55,836 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-04-29 11:08:55,836 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-29 11:08:55,851 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 119 statements into 11 equivalence classes. [2025-04-29 11:08:55,854 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) and asserted 69 of 119 statements. [2025-04-29 11:08:55,854 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2025-04-29 11:08:55,854 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-29 11:08:55,971 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 11:08:55,971 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-29 11:08:55,971 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1578667103] [2025-04-29 11:08:55,971 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1578667103] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-29 11:08:55,971 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-29 11:08:55,971 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2025-04-29 11:08:55,971 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1592892803] [2025-04-29 11:08:55,971 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-29 11:08:55,973 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-04-29 11:08:55,973 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-29 11:08:55,974 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-04-29 11:08:55,974 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2025-04-29 11:08:56,381 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 111 out of 138 [2025-04-29 11:08:56,382 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 326 places, 488 transitions, 4116 flow. Second operand has 9 states, 9 states have (on average 112.77777777777777) internal successors, (1015), 9 states have internal predecessors, (1015), 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 11:08:56,382 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-29 11:08:56,382 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 111 of 138 [2025-04-29 11:08:56,382 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-29 11:08:58,521 INFO L116 PetriNetUnfolderBase]: 3914/14145 cut-off events. [2025-04-29 11:08:58,521 INFO L117 PetriNetUnfolderBase]: For 51135/52060 co-relation queries the response was YES. [2025-04-29 11:08:58,603 INFO L83 FinitePrefix]: Finished finitePrefix Result has 49944 conditions, 14145 events. 3914/14145 cut-off events. For 51135/52060 co-relation queries the response was YES. Maximal size of possible extension queue 471. Compared 144998 event pairs, 385 based on Foata normal form. 140/14114 useless extension candidates. Maximal degree in co-relation 49655. Up to 2255 conditions per place. [2025-04-29 11:08:58,643 INFO L140 encePairwiseOnDemand]: 123/138 looper letters, 171 selfloop transitions, 47 changer transitions 0/556 dead transitions. [2025-04-29 11:08:58,643 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 334 places, 556 transitions, 5506 flow [2025-04-29 11:08:58,643 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-04-29 11:08:58,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2025-04-29 11:08:58,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1099 transitions. [2025-04-29 11:08:58,644 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.8848631239935588 [2025-04-29 11:08:58,644 INFO L175 Difference]: Start difference. First operand has 326 places, 488 transitions, 4116 flow. Second operand 9 states and 1099 transitions. [2025-04-29 11:08:58,644 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 334 places, 556 transitions, 5506 flow [2025-04-29 11:08:58,837 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 330 places, 556 transitions, 5334 flow, removed 29 selfloop flow, removed 4 redundant places. [2025-04-29 11:08:58,842 INFO L231 Difference]: Finished difference. Result has 335 places, 501 transitions, 4347 flow [2025-04-29 11:08:58,843 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=138, PETRI_DIFFERENCE_MINUEND_FLOW=3996, PETRI_DIFFERENCE_MINUEND_PLACES=322, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=488, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=34, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=445, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=4347, PETRI_PLACES=335, PETRI_TRANSITIONS=501} [2025-04-29 11:08:58,843 INFO L279 CegarLoopForPetriNet]: 138 programPoint places, 197 predicate places. [2025-04-29 11:08:58,843 INFO L485 AbstractCegarLoop]: Abstraction has has 335 places, 501 transitions, 4347 flow [2025-04-29 11:08:58,844 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 112.77777777777777) internal successors, (1015), 9 states have internal predecessors, (1015), 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 11:08:58,844 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-29 11:08:58,844 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] [2025-04-29 11:08:58,844 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2025-04-29 11:08:58,844 INFO L403 AbstractCegarLoop]: === Iteration 19 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2025-04-29 11:08:58,845 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-29 11:08:58,845 INFO L85 PathProgramCache]: Analyzing trace with hash 1407899725, now seen corresponding path program 10 times [2025-04-29 11:08:58,845 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-29 11:08:58,845 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1918351419] [2025-04-29 11:08:58,845 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-04-29 11:08:58,845 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-29 11:08:58,855 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 119 statements into 2 equivalence classes. [2025-04-29 11:08:58,862 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 1 check-sat command(s) and asserted 101 of 119 statements. [2025-04-29 11:08:58,863 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 1 check-sat command(s) [2025-04-29 11:08:58,863 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-29 11:08:59,206 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 11:08:59,207 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-29 11:08:59,207 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1918351419] [2025-04-29 11:08:59,207 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1918351419] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-29 11:08:59,207 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-29 11:08:59,207 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2025-04-29 11:08:59,207 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1762787837] [2025-04-29 11:08:59,207 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-29 11:08:59,208 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-04-29 11:08:59,208 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-29 11:08:59,209 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-04-29 11:08:59,209 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2025-04-29 11:08:59,828 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 111 out of 138 [2025-04-29 11:08:59,829 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 335 places, 501 transitions, 4347 flow. Second operand has 10 states, 10 states have (on average 112.6) internal successors, (1126), 10 states have internal predecessors, (1126), 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 11:08:59,829 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-29 11:08:59,829 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 111 of 138 [2025-04-29 11:08:59,829 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-29 11:09:01,998 INFO L116 PetriNetUnfolderBase]: 3631/13369 cut-off events. [2025-04-29 11:09:01,998 INFO L117 PetriNetUnfolderBase]: For 49994/50753 co-relation queries the response was YES. [2025-04-29 11:09:02,117 INFO L83 FinitePrefix]: Finished finitePrefix Result has 47371 conditions, 13369 events. 3631/13369 cut-off events. For 49994/50753 co-relation queries the response was YES. Maximal size of possible extension queue 411. Compared 135253 event pairs, 351 based on Foata normal form. 169/13391 useless extension candidates. Maximal degree in co-relation 47077. Up to 2076 conditions per place. [2025-04-29 11:09:02,155 INFO L140 encePairwiseOnDemand]: 123/138 looper letters, 173 selfloop transitions, 58 changer transitions 0/569 dead transitions. [2025-04-29 11:09:02,155 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 344 places, 569 transitions, 5508 flow [2025-04-29 11:09:02,155 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-04-29 11:09:02,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2025-04-29 11:09:02,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1199 transitions. [2025-04-29 11:09:02,156 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.868840579710145 [2025-04-29 11:09:02,156 INFO L175 Difference]: Start difference. First operand has 335 places, 501 transitions, 4347 flow. Second operand 10 states and 1199 transitions. [2025-04-29 11:09:02,156 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 344 places, 569 transitions, 5508 flow [2025-04-29 11:09:02,344 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 340 places, 569 transitions, 5350 flow, removed 38 selfloop flow, removed 4 redundant places. [2025-04-29 11:09:02,349 INFO L231 Difference]: Finished difference. Result has 343 places, 504 transitions, 4404 flow [2025-04-29 11:09:02,349 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=138, PETRI_DIFFERENCE_MINUEND_FLOW=4184, PETRI_DIFFERENCE_MINUEND_PLACES=331, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=499, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=54, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=443, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=4404, PETRI_PLACES=343, PETRI_TRANSITIONS=504} [2025-04-29 11:09:02,350 INFO L279 CegarLoopForPetriNet]: 138 programPoint places, 205 predicate places. [2025-04-29 11:09:02,350 INFO L485 AbstractCegarLoop]: Abstraction has has 343 places, 504 transitions, 4404 flow [2025-04-29 11:09:02,350 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 112.6) internal successors, (1126), 10 states have internal predecessors, (1126), 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 11:09:02,350 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-29 11:09:02,350 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] [2025-04-29 11:09:02,350 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2025-04-29 11:09:02,350 INFO L403 AbstractCegarLoop]: === Iteration 20 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2025-04-29 11:09:02,351 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-29 11:09:02,351 INFO L85 PathProgramCache]: Analyzing trace with hash 542271821, now seen corresponding path program 11 times [2025-04-29 11:09:02,351 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-29 11:09:02,351 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [331183533] [2025-04-29 11:09:02,351 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-04-29 11:09:02,351 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-29 11:09:02,358 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 119 statements into 11 equivalence classes. [2025-04-29 11:09:02,364 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) and asserted 119 of 119 statements. [2025-04-29 11:09:02,365 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) [2025-04-29 11:09:02,365 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-29 11:09:02,605 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 207 trivial. 0 not checked. [2025-04-29 11:09:02,605 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-29 11:09:02,606 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [331183533] [2025-04-29 11:09:02,606 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [331183533] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-29 11:09:02,606 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1454732842] [2025-04-29 11:09:02,606 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-04-29 11:09:02,606 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-29 11:09:02,606 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-04-29 11:09:02,608 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-04-29 11:09:02,620 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2025-04-29 11:09:02,683 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 119 statements into 11 equivalence classes. [2025-04-29 11:09:02,717 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) and asserted 119 of 119 statements. [2025-04-29 11:09:02,718 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) [2025-04-29 11:09:02,718 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-29 11:09:02,719 INFO L256 TraceCheckSpWp]: Trace formula consists of 280 conjuncts, 26 conjuncts are in the unsatisfiable core [2025-04-29 11:09:02,722 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-29 11:09:02,872 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 13 treesize of output 9 [2025-04-29 11:09:02,903 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 11:09:02,903 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-04-29 11:09:02,903 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1454732842] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-29 11:09:02,903 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-04-29 11:09:02,903 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [10] total 18 [2025-04-29 11:09:02,903 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1194600786] [2025-04-29 11:09:02,903 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-29 11:09:02,903 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-04-29 11:09:02,903 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-29 11:09:02,904 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-04-29 11:09:02,904 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=261, Unknown=0, NotChecked=0, Total=306 [2025-04-29 11:09:03,367 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 111 out of 138 [2025-04-29 11:09:03,368 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 343 places, 504 transitions, 4404 flow. Second operand has 10 states, 10 states have (on average 112.6) internal successors, (1126), 10 states have internal predecessors, (1126), 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 11:09:03,368 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-29 11:09:03,368 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 111 of 138 [2025-04-29 11:09:03,368 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-29 11:09:05,201 INFO L116 PetriNetUnfolderBase]: 3642/13306 cut-off events. [2025-04-29 11:09:05,201 INFO L117 PetriNetUnfolderBase]: For 50853/51701 co-relation queries the response was YES. [2025-04-29 11:09:05,310 INFO L83 FinitePrefix]: Finished finitePrefix Result has 47364 conditions, 13306 events. 3642/13306 cut-off events. For 50853/51701 co-relation queries the response was YES. Maximal size of possible extension queue 412. Compared 134438 event pairs, 416 based on Foata normal form. 118/13251 useless extension candidates. Maximal degree in co-relation 47066. Up to 2092 conditions per place. [2025-04-29 11:09:05,346 INFO L140 encePairwiseOnDemand]: 122/138 looper letters, 174 selfloop transitions, 47 changer transitions 0/559 dead transitions. [2025-04-29 11:09:05,346 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 352 places, 559 transitions, 5610 flow [2025-04-29 11:09:05,346 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-04-29 11:09:05,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2025-04-29 11:09:05,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1213 transitions. [2025-04-29 11:09:05,348 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.8789855072463768 [2025-04-29 11:09:05,348 INFO L175 Difference]: Start difference. First operand has 343 places, 504 transitions, 4404 flow. Second operand 10 states and 1213 transitions. [2025-04-29 11:09:05,348 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 352 places, 559 transitions, 5610 flow [2025-04-29 11:09:05,534 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 347 places, 559 transitions, 5496 flow, removed 8 selfloop flow, removed 5 redundant places. [2025-04-29 11:09:05,539 INFO L231 Difference]: Finished difference. Result has 353 places, 517 transitions, 4714 flow [2025-04-29 11:09:05,539 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=138, PETRI_DIFFERENCE_MINUEND_FLOW=4308, PETRI_DIFFERENCE_MINUEND_PLACES=338, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=504, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=35, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=461, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=4714, PETRI_PLACES=353, PETRI_TRANSITIONS=517} [2025-04-29 11:09:05,539 INFO L279 CegarLoopForPetriNet]: 138 programPoint places, 215 predicate places. [2025-04-29 11:09:05,539 INFO L485 AbstractCegarLoop]: Abstraction has has 353 places, 517 transitions, 4714 flow [2025-04-29 11:09:05,540 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 112.6) internal successors, (1126), 10 states have internal predecessors, (1126), 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 11:09:05,540 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-29 11:09:05,540 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] [2025-04-29 11:09:05,546 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2025-04-29 11:09:05,740 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-29 11:09:05,740 INFO L403 AbstractCegarLoop]: === Iteration 21 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2025-04-29 11:09:05,741 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-29 11:09:05,741 INFO L85 PathProgramCache]: Analyzing trace with hash -461210541, now seen corresponding path program 12 times [2025-04-29 11:09:05,741 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-29 11:09:05,741 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1197066486] [2025-04-29 11:09:05,741 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-04-29 11:09:05,741 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-29 11:09:05,748 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 119 statements into 11 equivalence classes. [2025-04-29 11:09:05,751 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) and asserted 69 of 119 statements. [2025-04-29 11:09:05,752 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2025-04-29 11:09:05,752 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-29 11:09:05,850 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 11:09:05,851 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-29 11:09:05,851 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1197066486] [2025-04-29 11:09:05,851 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1197066486] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-29 11:09:05,851 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-29 11:09:05,851 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2025-04-29 11:09:05,851 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1822317817] [2025-04-29 11:09:05,851 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-29 11:09:05,851 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-04-29 11:09:05,851 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-29 11:09:05,852 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-04-29 11:09:05,852 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2025-04-29 11:09:06,312 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 111 out of 138 [2025-04-29 11:09:06,312 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 353 places, 517 transitions, 4714 flow. Second operand has 9 states, 9 states have (on average 112.77777777777777) internal successors, (1015), 9 states have internal predecessors, (1015), 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 11:09:06,312 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-29 11:09:06,312 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 111 of 138 [2025-04-29 11:09:06,312 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-29 11:09:08,404 INFO L116 PetriNetUnfolderBase]: 4206/15217 cut-off events. [2025-04-29 11:09:08,404 INFO L117 PetriNetUnfolderBase]: For 60981/61904 co-relation queries the response was YES. [2025-04-29 11:09:08,500 INFO L83 FinitePrefix]: Finished finitePrefix Result has 54498 conditions, 15217 events. 4206/15217 cut-off events. For 60981/61904 co-relation queries the response was YES. Maximal size of possible extension queue 533. Compared 159001 event pairs, 390 based on Foata normal form. 138/15182 useless extension candidates. Maximal degree in co-relation 54194. Up to 2449 conditions per place. [2025-04-29 11:09:08,541 INFO L140 encePairwiseOnDemand]: 122/138 looper letters, 190 selfloop transitions, 62 changer transitions 0/590 dead transitions. [2025-04-29 11:09:08,541 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 361 places, 590 transitions, 6119 flow [2025-04-29 11:09:08,541 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-04-29 11:09:08,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2025-04-29 11:09:08,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1097 transitions. [2025-04-29 11:09:08,542 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.8832528180354268 [2025-04-29 11:09:08,542 INFO L175 Difference]: Start difference. First operand has 353 places, 517 transitions, 4714 flow. Second operand 9 states and 1097 transitions. [2025-04-29 11:09:08,542 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 361 places, 590 transitions, 6119 flow [2025-04-29 11:09:08,784 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 358 places, 590 transitions, 5998 flow, removed 43 selfloop flow, removed 3 redundant places. [2025-04-29 11:09:08,789 INFO L231 Difference]: Finished difference. Result has 363 places, 535 transitions, 5094 flow [2025-04-29 11:09:08,790 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=138, PETRI_DIFFERENCE_MINUEND_FLOW=4593, PETRI_DIFFERENCE_MINUEND_PLACES=350, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=517, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=47, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=460, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=5094, PETRI_PLACES=363, PETRI_TRANSITIONS=535} [2025-04-29 11:09:08,790 INFO L279 CegarLoopForPetriNet]: 138 programPoint places, 225 predicate places. [2025-04-29 11:09:08,790 INFO L485 AbstractCegarLoop]: Abstraction has has 363 places, 535 transitions, 5094 flow [2025-04-29 11:09:08,791 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 112.77777777777777) internal successors, (1015), 9 states have internal predecessors, (1015), 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 11:09:08,791 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-29 11:09:08,791 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] [2025-04-29 11:09:08,791 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2025-04-29 11:09:08,791 INFO L403 AbstractCegarLoop]: === Iteration 22 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2025-04-29 11:09:08,792 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-29 11:09:08,792 INFO L85 PathProgramCache]: Analyzing trace with hash -1165271887, now seen corresponding path program 13 times [2025-04-29 11:09:08,792 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-29 11:09:08,792 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [996677834] [2025-04-29 11:09:08,792 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2025-04-29 11:09:08,792 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-29 11:09:08,802 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 119 statements into 1 equivalence classes. [2025-04-29 11:09:08,808 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 119 of 119 statements. [2025-04-29 11:09:08,808 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-29 11:09:08,808 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-29 11:09:08,960 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 11:09:08,960 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-29 11:09:08,960 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [996677834] [2025-04-29 11:09:08,960 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [996677834] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-29 11:09:08,960 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-29 11:09:08,960 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2025-04-29 11:09:08,961 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [340658670] [2025-04-29 11:09:08,961 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-29 11:09:08,961 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-04-29 11:09:08,961 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-29 11:09:08,962 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-04-29 11:09:08,962 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2025-04-29 11:09:09,414 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 111 out of 138 [2025-04-29 11:09:09,415 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 363 places, 535 transitions, 5094 flow. Second operand has 9 states, 9 states have (on average 112.77777777777777) internal successors, (1015), 9 states have internal predecessors, (1015), 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 11:09:09,415 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-29 11:09:09,415 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 111 of 138 [2025-04-29 11:09:09,415 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-29 11:09:11,723 INFO L116 PetriNetUnfolderBase]: 4196/15203 cut-off events. [2025-04-29 11:09:11,723 INFO L117 PetriNetUnfolderBase]: For 64290/65208 co-relation queries the response was YES. [2025-04-29 11:09:11,820 INFO L83 FinitePrefix]: Finished finitePrefix Result has 54819 conditions, 15203 events. 4196/15203 cut-off events. For 64290/65208 co-relation queries the response was YES. Maximal size of possible extension queue 533. Compared 158754 event pairs, 386 based on Foata normal form. 142/15178 useless extension candidates. Maximal degree in co-relation 54511. Up to 2448 conditions per place. [2025-04-29 11:09:11,857 INFO L140 encePairwiseOnDemand]: 122/138 looper letters, 198 selfloop transitions, 62 changer transitions 0/598 dead transitions. [2025-04-29 11:09:11,857 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 371 places, 598 transitions, 6446 flow [2025-04-29 11:09:11,857 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-04-29 11:09:11,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2025-04-29 11:09:11,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1099 transitions. [2025-04-29 11:09:11,858 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.8848631239935588 [2025-04-29 11:09:11,858 INFO L175 Difference]: Start difference. First operand has 363 places, 535 transitions, 5094 flow. Second operand 9 states and 1099 transitions. [2025-04-29 11:09:11,858 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 371 places, 598 transitions, 6446 flow [2025-04-29 11:09:12,097 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 369 places, 598 transitions, 6338 flow, removed 35 selfloop flow, removed 2 redundant places. [2025-04-29 11:09:12,103 INFO L231 Difference]: Finished difference. Result has 373 places, 548 transitions, 5435 flow [2025-04-29 11:09:12,103 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=138, PETRI_DIFFERENCE_MINUEND_FLOW=4988, PETRI_DIFFERENCE_MINUEND_PLACES=361, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=535, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=49, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=476, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=5435, PETRI_PLACES=373, PETRI_TRANSITIONS=548} [2025-04-29 11:09:12,103 INFO L279 CegarLoopForPetriNet]: 138 programPoint places, 235 predicate places. [2025-04-29 11:09:12,103 INFO L485 AbstractCegarLoop]: Abstraction has has 373 places, 548 transitions, 5435 flow [2025-04-29 11:09:12,103 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 112.77777777777777) internal successors, (1015), 9 states have internal predecessors, (1015), 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 11:09:12,103 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-29 11:09:12,104 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] [2025-04-29 11:09:12,104 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2025-04-29 11:09:12,104 INFO L403 AbstractCegarLoop]: === Iteration 23 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2025-04-29 11:09:12,105 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-29 11:09:12,105 INFO L85 PathProgramCache]: Analyzing trace with hash 1520908053, now seen corresponding path program 14 times [2025-04-29 11:09:12,105 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-29 11:09:12,105 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [596949087] [2025-04-29 11:09:12,105 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-04-29 11:09:12,105 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-29 11:09:12,112 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 119 statements into 2 equivalence classes. [2025-04-29 11:09:12,115 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 69 of 119 statements. [2025-04-29 11:09:12,115 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-04-29 11:09:12,115 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-29 11:09:12,214 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 11:09:12,215 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-29 11:09:12,215 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [596949087] [2025-04-29 11:09:12,215 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [596949087] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-29 11:09:12,215 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-29 11:09:12,215 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2025-04-29 11:09:12,215 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1340690873] [2025-04-29 11:09:12,215 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-29 11:09:12,215 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-04-29 11:09:12,216 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-29 11:09:12,216 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-04-29 11:09:12,216 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2025-04-29 11:09:12,639 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 111 out of 138 [2025-04-29 11:09:12,640 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 373 places, 548 transitions, 5435 flow. Second operand has 9 states, 9 states have (on average 112.77777777777777) internal successors, (1015), 9 states have internal predecessors, (1015), 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 11:09:12,640 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-29 11:09:12,640 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 111 of 138 [2025-04-29 11:09:12,640 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-29 11:09:15,009 INFO L116 PetriNetUnfolderBase]: 4204/15216 cut-off events. [2025-04-29 11:09:15,010 INFO L117 PetriNetUnfolderBase]: For 67535/68578 co-relation queries the response was YES. [2025-04-29 11:09:15,090 INFO L83 FinitePrefix]: Finished finitePrefix Result has 55306 conditions, 15216 events. 4204/15216 cut-off events. For 67535/68578 co-relation queries the response was YES. Maximal size of possible extension queue 533. Compared 159128 event pairs, 398 based on Foata normal form. 196/15242 useless extension candidates. Maximal degree in co-relation 54994. Up to 2458 conditions per place. [2025-04-29 11:09:15,122 INFO L140 encePairwiseOnDemand]: 123/138 looper letters, 181 selfloop transitions, 84 changer transitions 0/603 dead transitions. [2025-04-29 11:09:15,122 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 381 places, 603 transitions, 6645 flow [2025-04-29 11:09:15,123 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-04-29 11:09:15,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2025-04-29 11:09:15,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1091 transitions. [2025-04-29 11:09:15,123 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.8784219001610306 [2025-04-29 11:09:15,123 INFO L175 Difference]: Start difference. First operand has 373 places, 548 transitions, 5435 flow. Second operand 9 states and 1091 transitions. [2025-04-29 11:09:15,123 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 381 places, 603 transitions, 6645 flow [2025-04-29 11:09:15,370 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 377 places, 603 transitions, 6448 flow, removed 51 selfloop flow, removed 4 redundant places. [2025-04-29 11:09:15,375 INFO L231 Difference]: Finished difference. Result has 381 places, 556 transitions, 5683 flow [2025-04-29 11:09:15,376 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=138, PETRI_DIFFERENCE_MINUEND_FLOW=5252, PETRI_DIFFERENCE_MINUEND_PLACES=369, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=548, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=76, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=467, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=5683, PETRI_PLACES=381, PETRI_TRANSITIONS=556} [2025-04-29 11:09:15,376 INFO L279 CegarLoopForPetriNet]: 138 programPoint places, 243 predicate places. [2025-04-29 11:09:15,376 INFO L485 AbstractCegarLoop]: Abstraction has has 381 places, 556 transitions, 5683 flow [2025-04-29 11:09:15,376 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 112.77777777777777) internal successors, (1015), 9 states have internal predecessors, (1015), 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 11:09:15,376 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-29 11:09:15,376 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] [2025-04-29 11:09:15,377 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2025-04-29 11:09:15,377 INFO L403 AbstractCegarLoop]: === Iteration 24 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2025-04-29 11:09:15,378 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-29 11:09:15,378 INFO L85 PathProgramCache]: Analyzing trace with hash -1354620843, now seen corresponding path program 15 times [2025-04-29 11:09:15,378 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-29 11:09:15,378 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [102136246] [2025-04-29 11:09:15,378 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-04-29 11:09:15,378 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-29 11:09:15,385 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 119 statements into 11 equivalence classes. [2025-04-29 11:09:15,387 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) and asserted 69 of 119 statements. [2025-04-29 11:09:15,387 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2025-04-29 11:09:15,388 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-29 11:09:15,499 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 11:09:15,499 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-29 11:09:15,500 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [102136246] [2025-04-29 11:09:15,500 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [102136246] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-29 11:09:15,500 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-29 11:09:15,500 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2025-04-29 11:09:15,500 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [970605445] [2025-04-29 11:09:15,500 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-29 11:09:15,500 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-04-29 11:09:15,501 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-29 11:09:15,501 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-04-29 11:09:15,501 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2025-04-29 11:09:15,881 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 111 out of 138 [2025-04-29 11:09:15,882 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 381 places, 556 transitions, 5683 flow. Second operand has 9 states, 9 states have (on average 112.77777777777777) internal successors, (1015), 9 states have internal predecessors, (1015), 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 11:09:15,883 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-29 11:09:15,884 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 111 of 138 [2025-04-29 11:09:15,884 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-29 11:09:18,184 INFO L116 PetriNetUnfolderBase]: 3926/14412 cut-off events. [2025-04-29 11:09:18,184 INFO L117 PetriNetUnfolderBase]: For 65752/66641 co-relation queries the response was YES. [2025-04-29 11:09:18,272 INFO L83 FinitePrefix]: Finished finitePrefix Result has 52563 conditions, 14412 events. 3926/14412 cut-off events. For 65752/66641 co-relation queries the response was YES. Maximal size of possible extension queue 475. Compared 148804 event pairs, 383 based on Foata normal form. 149/14398 useless extension candidates. Maximal degree in co-relation 52247. Up to 2288 conditions per place. [2025-04-29 11:09:18,305 INFO L140 encePairwiseOnDemand]: 123/138 looper letters, 201 selfloop transitions, 67 changer transitions 0/606 dead transitions. [2025-04-29 11:09:18,305 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 389 places, 606 transitions, 6822 flow [2025-04-29 11:09:18,305 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-04-29 11:09:18,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2025-04-29 11:09:18,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1094 transitions. [2025-04-29 11:09:18,306 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.8808373590982287 [2025-04-29 11:09:18,306 INFO L175 Difference]: Start difference. First operand has 381 places, 556 transitions, 5683 flow. Second operand 9 states and 1094 transitions. [2025-04-29 11:09:18,306 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 389 places, 606 transitions, 6822 flow [2025-04-29 11:09:18,552 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 385 places, 606 transitions, 6631 flow, removed 49 selfloop flow, removed 4 redundant places. [2025-04-29 11:09:18,558 INFO L231 Difference]: Finished difference. Result has 388 places, 559 transitions, 5760 flow [2025-04-29 11:09:18,558 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=138, PETRI_DIFFERENCE_MINUEND_FLOW=5485, PETRI_DIFFERENCE_MINUEND_PLACES=377, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=554, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=62, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=489, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=5760, PETRI_PLACES=388, PETRI_TRANSITIONS=559} [2025-04-29 11:09:18,558 INFO L279 CegarLoopForPetriNet]: 138 programPoint places, 250 predicate places. [2025-04-29 11:09:18,558 INFO L485 AbstractCegarLoop]: Abstraction has has 388 places, 559 transitions, 5760 flow [2025-04-29 11:09:18,559 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 112.77777777777777) internal successors, (1015), 9 states have internal predecessors, (1015), 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 11:09:18,559 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-29 11:09:18,559 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] [2025-04-29 11:09:18,559 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2025-04-29 11:09:18,559 INFO L403 AbstractCegarLoop]: === Iteration 25 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2025-04-29 11:09:18,560 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-29 11:09:18,560 INFO L85 PathProgramCache]: Analyzing trace with hash 81411845, now seen corresponding path program 16 times [2025-04-29 11:09:18,560 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-29 11:09:18,560 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [903989228] [2025-04-29 11:09:18,560 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-04-29 11:09:18,560 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-29 11:09:18,567 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 119 statements into 2 equivalence classes. [2025-04-29 11:09:18,572 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 1 check-sat command(s) and asserted 101 of 119 statements. [2025-04-29 11:09:18,572 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 1 check-sat command(s) [2025-04-29 11:09:18,572 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-29 11:09:18,791 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 11:09:18,791 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-29 11:09:18,791 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [903989228] [2025-04-29 11:09:18,791 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [903989228] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-29 11:09:18,792 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-29 11:09:18,792 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2025-04-29 11:09:18,792 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1485288200] [2025-04-29 11:09:18,792 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-29 11:09:18,792 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-04-29 11:09:18,792 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-29 11:09:18,792 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-04-29 11:09:18,792 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2025-04-29 11:09:19,208 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 111 out of 138 [2025-04-29 11:09:19,209 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 388 places, 559 transitions, 5760 flow. Second operand has 10 states, 10 states have (on average 112.6) internal successors, (1126), 10 states have internal predecessors, (1126), 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 11:09:19,209 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-29 11:09:19,209 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 111 of 138 [2025-04-29 11:09:19,209 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-29 11:09:21,494 INFO L116 PetriNetUnfolderBase]: 3662/13620 cut-off events. [2025-04-29 11:09:21,494 INFO L117 PetriNetUnfolderBase]: For 60773/61655 co-relation queries the response was YES. [2025-04-29 11:09:21,575 INFO L83 FinitePrefix]: Finished finitePrefix Result has 49497 conditions, 13620 events. 3662/13620 cut-off events. For 60773/61655 co-relation queries the response was YES. Maximal size of possible extension queue 416. Compared 138822 event pairs, 386 based on Foata normal form. 158/13613 useless extension candidates. Maximal degree in co-relation 49178. Up to 2127 conditions per place. [2025-04-29 11:09:21,612 INFO L140 encePairwiseOnDemand]: 121/138 looper letters, 188 selfloop transitions, 81 changer transitions 0/607 dead transitions. [2025-04-29 11:09:21,612 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 397 places, 607 transitions, 6860 flow [2025-04-29 11:09:21,612 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-04-29 11:09:21,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2025-04-29 11:09:21,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1204 transitions. [2025-04-29 11:09:21,614 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.8724637681159421 [2025-04-29 11:09:21,614 INFO L175 Difference]: Start difference. First operand has 388 places, 559 transitions, 5760 flow. Second operand 10 states and 1204 transitions. [2025-04-29 11:09:21,614 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 397 places, 607 transitions, 6860 flow [2025-04-29 11:09:21,863 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 392 places, 607 transitions, 6710 flow, removed 18 selfloop flow, removed 5 redundant places. [2025-04-29 11:09:21,869 INFO L231 Difference]: Finished difference. Result has 395 places, 566 transitions, 5990 flow [2025-04-29 11:09:21,869 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=138, PETRI_DIFFERENCE_MINUEND_FLOW=5567, PETRI_DIFFERENCE_MINUEND_PLACES=383, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=557, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=73, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=479, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=5990, PETRI_PLACES=395, PETRI_TRANSITIONS=566} [2025-04-29 11:09:21,870 INFO L279 CegarLoopForPetriNet]: 138 programPoint places, 257 predicate places. [2025-04-29 11:09:21,870 INFO L485 AbstractCegarLoop]: Abstraction has has 395 places, 566 transitions, 5990 flow [2025-04-29 11:09:21,870 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 112.6) internal successors, (1126), 10 states have internal predecessors, (1126), 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 11:09:21,870 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-29 11:09:21,870 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] [2025-04-29 11:09:21,870 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2025-04-29 11:09:21,870 INFO L403 AbstractCegarLoop]: === Iteration 26 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2025-04-29 11:09:21,871 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-29 11:09:21,871 INFO L85 PathProgramCache]: Analyzing trace with hash -1877964365, now seen corresponding path program 17 times [2025-04-29 11:09:21,871 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-29 11:09:21,871 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [655766460] [2025-04-29 11:09:21,871 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-04-29 11:09:21,872 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-29 11:09:21,880 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 119 statements into 11 equivalence classes. [2025-04-29 11:09:21,887 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) and asserted 119 of 119 statements. [2025-04-29 11:09:21,887 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) [2025-04-29 11:09:21,887 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-29 11:09:22,207 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 207 trivial. 0 not checked. [2025-04-29 11:09:22,207 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-29 11:09:22,207 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [655766460] [2025-04-29 11:09:22,207 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [655766460] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-29 11:09:22,207 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [958549526] [2025-04-29 11:09:22,207 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-04-29 11:09:22,207 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-29 11:09:22,208 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-04-29 11:09:22,209 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-04-29 11:09:22,211 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2025-04-29 11:09:22,292 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 119 statements into 11 equivalence classes. [2025-04-29 11:09:22,339 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) and asserted 119 of 119 statements. [2025-04-29 11:09:22,340 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) [2025-04-29 11:09:22,340 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-29 11:09:22,341 INFO L256 TraceCheckSpWp]: Trace formula consists of 280 conjuncts, 26 conjuncts are in the unsatisfiable core [2025-04-29 11:09:22,343 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-29 11:09:22,494 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 13 treesize of output 9 [2025-04-29 11:09:22,523 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 11:09:22,523 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-04-29 11:09:22,523 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [958549526] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-29 11:09:22,523 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-04-29 11:09:22,523 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [10] total 18 [2025-04-29 11:09:22,523 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1507082409] [2025-04-29 11:09:22,523 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-29 11:09:22,523 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-04-29 11:09:22,524 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-29 11:09:22,524 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-04-29 11:09:22,524 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=260, Unknown=0, NotChecked=0, Total=306 [2025-04-29 11:09:23,100 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 111 out of 138 [2025-04-29 11:09:23,101 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 395 places, 566 transitions, 5990 flow. Second operand has 10 states, 10 states have (on average 112.6) internal successors, (1126), 10 states have internal predecessors, (1126), 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 11:09:23,101 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-29 11:09:23,101 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 111 of 138 [2025-04-29 11:09:23,101 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-29 11:09:25,302 INFO L116 PetriNetUnfolderBase]: 3389/12789 cut-off events. [2025-04-29 11:09:25,302 INFO L117 PetriNetUnfolderBase]: For 56580/57340 co-relation queries the response was YES. [2025-04-29 11:09:25,417 INFO L83 FinitePrefix]: Finished finitePrefix Result has 46312 conditions, 12789 events. 3389/12789 cut-off events. For 56580/57340 co-relation queries the response was YES. Maximal size of possible extension queue 356. Compared 128560 event pairs, 354 based on Foata normal form. 120/12750 useless extension candidates. Maximal degree in co-relation 45989. Up to 1963 conditions per place. [2025-04-29 11:09:25,456 INFO L140 encePairwiseOnDemand]: 123/138 looper letters, 200 selfloop transitions, 66 changer transitions 0/604 dead transitions. [2025-04-29 11:09:25,456 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 404 places, 604 transitions, 6879 flow [2025-04-29 11:09:25,456 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-04-29 11:09:25,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2025-04-29 11:09:25,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1208 transitions. [2025-04-29 11:09:25,457 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.8753623188405797 [2025-04-29 11:09:25,457 INFO L175 Difference]: Start difference. First operand has 395 places, 566 transitions, 5990 flow. Second operand 10 states and 1208 transitions. [2025-04-29 11:09:25,457 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 404 places, 604 transitions, 6879 flow [2025-04-29 11:09:25,683 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 398 places, 604 transitions, 6626 flow, removed 62 selfloop flow, removed 6 redundant places. [2025-04-29 11:09:25,688 INFO L231 Difference]: Finished difference. Result has 401 places, 569 transitions, 5981 flow [2025-04-29 11:09:25,688 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=138, PETRI_DIFFERENCE_MINUEND_FLOW=5708, PETRI_DIFFERENCE_MINUEND_PLACES=389, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=564, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=62, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=500, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=5981, PETRI_PLACES=401, PETRI_TRANSITIONS=569} [2025-04-29 11:09:25,689 INFO L279 CegarLoopForPetriNet]: 138 programPoint places, 263 predicate places. [2025-04-29 11:09:25,689 INFO L485 AbstractCegarLoop]: Abstraction has has 401 places, 569 transitions, 5981 flow [2025-04-29 11:09:25,689 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 112.6) internal successors, (1126), 10 states have internal predecessors, (1126), 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 11:09:25,689 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-29 11:09:25,689 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] [2025-04-29 11:09:25,695 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2025-04-29 11:09:25,893 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-29 11:09:25,893 INFO L403 AbstractCegarLoop]: === Iteration 27 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2025-04-29 11:09:25,894 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-29 11:09:25,894 INFO L85 PathProgramCache]: Analyzing trace with hash -1844851863, now seen corresponding path program 18 times [2025-04-29 11:09:25,894 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-29 11:09:25,894 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [151869801] [2025-04-29 11:09:25,894 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-04-29 11:09:25,894 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-29 11:09:25,901 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 119 statements into 11 equivalence classes. [2025-04-29 11:09:25,904 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) and asserted 69 of 119 statements. [2025-04-29 11:09:25,904 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2025-04-29 11:09:25,904 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-29 11:09:26,009 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 11:09:26,010 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-29 11:09:26,010 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [151869801] [2025-04-29 11:09:26,010 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [151869801] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-29 11:09:26,010 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-29 11:09:26,010 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2025-04-29 11:09:26,010 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1272415382] [2025-04-29 11:09:26,010 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-29 11:09:26,010 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-04-29 11:09:26,010 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-29 11:09:26,011 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-04-29 11:09:26,011 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2025-04-29 11:09:26,546 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 111 out of 138 [2025-04-29 11:09:26,547 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 401 places, 569 transitions, 5981 flow. Second operand has 9 states, 9 states have (on average 112.77777777777777) internal successors, (1015), 9 states have internal predecessors, (1015), 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 11:09:26,547 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-29 11:09:26,547 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 111 of 138 [2025-04-29 11:09:26,547 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-29 11:09:28,613 INFO L116 PetriNetUnfolderBase]: 3379/12785 cut-off events. [2025-04-29 11:09:28,613 INFO L117 PetriNetUnfolderBase]: For 56212/56932 co-relation queries the response was YES. [2025-04-29 11:09:28,794 INFO L83 FinitePrefix]: Finished finitePrefix Result has 46173 conditions, 12785 events. 3379/12785 cut-off events. For 56212/56932 co-relation queries the response was YES. Maximal size of possible extension queue 357. Compared 128477 event pairs, 373 based on Foata normal form. 151/12784 useless extension candidates. Maximal degree in co-relation 45847. Up to 1951 conditions per place. [2025-04-29 11:09:28,832 INFO L140 encePairwiseOnDemand]: 124/138 looper letters, 225 selfloop transitions, 60 changer transitions 0/623 dead transitions. [2025-04-29 11:09:28,832 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 409 places, 623 transitions, 7299 flow [2025-04-29 11:09:28,832 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-04-29 11:09:28,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2025-04-29 11:09:28,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1097 transitions. [2025-04-29 11:09:28,833 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.8832528180354268 [2025-04-29 11:09:28,833 INFO L175 Difference]: Start difference. First operand has 401 places, 569 transitions, 5981 flow. Second operand 9 states and 1097 transitions. [2025-04-29 11:09:28,833 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 409 places, 623 transitions, 7299 flow [2025-04-29 11:09:29,094 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 403 places, 623 transitions, 7130 flow, removed 28 selfloop flow, removed 6 redundant places. [2025-04-29 11:09:29,099 INFO L231 Difference]: Finished difference. Result has 408 places, 579 transitions, 6195 flow [2025-04-29 11:09:29,100 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=138, PETRI_DIFFERENCE_MINUEND_FLOW=5812, PETRI_DIFFERENCE_MINUEND_PLACES=395, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=569, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=51, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=513, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=6195, PETRI_PLACES=408, PETRI_TRANSITIONS=579} [2025-04-29 11:09:29,100 INFO L279 CegarLoopForPetriNet]: 138 programPoint places, 270 predicate places. [2025-04-29 11:09:29,100 INFO L485 AbstractCegarLoop]: Abstraction has has 408 places, 579 transitions, 6195 flow [2025-04-29 11:09:29,100 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 112.77777777777777) internal successors, (1015), 9 states have internal predecessors, (1015), 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 11:09:29,100 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-29 11:09:29,100 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] [2025-04-29 11:09:29,101 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2025-04-29 11:09:29,101 INFO L403 AbstractCegarLoop]: === Iteration 28 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2025-04-29 11:09:29,101 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-29 11:09:29,101 INFO L85 PathProgramCache]: Analyzing trace with hash 902243017, now seen corresponding path program 19 times [2025-04-29 11:09:29,102 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-29 11:09:29,102 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [858621763] [2025-04-29 11:09:29,102 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2025-04-29 11:09:29,102 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-29 11:09:29,110 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 119 statements into 1 equivalence classes. [2025-04-29 11:09:29,114 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 119 of 119 statements. [2025-04-29 11:09:29,114 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-29 11:09:29,114 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-29 11:09:29,250 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 11:09:29,250 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-29 11:09:29,250 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [858621763] [2025-04-29 11:09:29,250 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [858621763] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-29 11:09:29,250 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-29 11:09:29,250 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2025-04-29 11:09:29,250 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1368097440] [2025-04-29 11:09:29,250 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-29 11:09:29,251 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-04-29 11:09:29,251 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-29 11:09:29,251 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-04-29 11:09:29,251 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2025-04-29 11:09:29,573 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 111 out of 138 [2025-04-29 11:09:29,574 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 408 places, 579 transitions, 6195 flow. Second operand has 9 states, 9 states have (on average 112.77777777777777) internal successors, (1015), 9 states have internal predecessors, (1015), 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 11:09:29,574 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-29 11:09:29,574 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 111 of 138 [2025-04-29 11:09:29,574 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand Killed by 15