./Ultimate.py --spec ../sv-benchmarks/c/properties/no-data-race.prp --file ../sv-benchmarks/c/goblint-regression/04-mutex_36-trylock_nr.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 551b0097 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/goblint-regression/04-mutex_36-trylock_nr.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/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 0bf2f5f336333cdf96c271b32cdeb9b70ee932e1c07acf27a63b4425ec902f3e --- Real Ultimate output --- This is Ultimate 0.3.0-?-551b009-m [2025-01-09 21:22:08,015 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-01-09 21:22:08,055 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2025-01-09 21:22:08,059 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-01-09 21:22:08,059 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-01-09 21:22:08,072 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-01-09 21:22:08,072 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-01-09 21:22:08,073 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-01-09 21:22:08,073 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-01-09 21:22:08,073 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-01-09 21:22:08,073 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-01-09 21:22:08,073 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-01-09 21:22:08,073 INFO L153 SettingsManager]: * Use SBE=true [2025-01-09 21:22:08,073 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-01-09 21:22:08,074 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-01-09 21:22:08,074 INFO L153 SettingsManager]: * sizeof long=4 [2025-01-09 21:22:08,074 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-01-09 21:22:08,074 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-01-09 21:22:08,074 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-01-09 21:22:08,074 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-01-09 21:22:08,074 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-01-09 21:22:08,074 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-01-09 21:22:08,074 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2025-01-09 21:22:08,074 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-01-09 21:22:08,074 INFO L153 SettingsManager]: * sizeof long double=12 [2025-01-09 21:22:08,074 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-01-09 21:22:08,074 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-01-09 21:22:08,074 INFO L153 SettingsManager]: * Use constant arrays=true [2025-01-09 21:22:08,074 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-01-09 21:22:08,074 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 21:22:08,074 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 21:22:08,075 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 21:22:08,075 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-01-09 21:22:08,075 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 21:22:08,075 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 21:22:08,075 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 21:22:08,075 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-01-09 21:22:08,075 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-01-09 21:22:08,075 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-01-09 21:22:08,075 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-01-09 21:22:08,075 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-01-09 21:22:08,075 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-01-09 21:22:08,075 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-01-09 21:22:08,075 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-01-09 21:22:08,075 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-01-09 21:22:08,075 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-01-09 21:22:08,075 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-jdk21/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 -> 0bf2f5f336333cdf96c271b32cdeb9b70ee932e1c07acf27a63b4425ec902f3e [2025-01-09 21:22:08,272 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-01-09 21:22:08,277 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-01-09 21:22:08,278 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-01-09 21:22:08,279 INFO L270 PluginConnector]: Initializing CDTParser... [2025-01-09 21:22:08,279 INFO L274 PluginConnector]: CDTParser initialized [2025-01-09 21:22:08,280 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/04-mutex_36-trylock_nr.i [2025-01-09 21:22:09,353 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/034c486ee/e4fd654507b2449fa0629b76483517bd/FLAG62986654f [2025-01-09 21:22:09,719 INFO L384 CDTParser]: Found 1 translation units. [2025-01-09 21:22:09,720 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/goblint-regression/04-mutex_36-trylock_nr.i [2025-01-09 21:22:09,741 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/034c486ee/e4fd654507b2449fa0629b76483517bd/FLAG62986654f [2025-01-09 21:22:09,912 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/034c486ee/e4fd654507b2449fa0629b76483517bd [2025-01-09 21:22:09,914 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-01-09 21:22:09,915 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-01-09 21:22:09,916 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-01-09 21:22:09,917 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-01-09 21:22:09,920 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-01-09 21:22:09,921 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 09:22:09" (1/1) ... [2025-01-09 21:22:09,921 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@32cc897d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:22:09, skipping insertion in model container [2025-01-09 21:22:09,921 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 09:22:09" (1/1) ... [2025-01-09 21:22:09,947 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-01-09 21:22:10,431 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 21:22:10,451 INFO L200 MainTranslator]: Completed pre-run [2025-01-09 21:22:10,520 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 21:22:10,600 INFO L204 MainTranslator]: Completed translation [2025-01-09 21:22:10,600 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:22:10 WrapperNode [2025-01-09 21:22:10,600 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-01-09 21:22:10,601 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-01-09 21:22:10,601 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-01-09 21:22:10,601 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-01-09 21:22:10,605 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:22:10" (1/1) ... [2025-01-09 21:22:10,618 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:22:10" (1/1) ... [2025-01-09 21:22:10,631 INFO L138 Inliner]: procedures = 525, calls = 30, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 117 [2025-01-09 21:22:10,632 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-01-09 21:22:10,632 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-01-09 21:22:10,632 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-01-09 21:22:10,632 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-01-09 21:22:10,637 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:22:10" (1/1) ... [2025-01-09 21:22:10,637 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:22:10" (1/1) ... [2025-01-09 21:22:10,640 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:22:10" (1/1) ... [2025-01-09 21:22:10,640 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:22:10" (1/1) ... [2025-01-09 21:22:10,646 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:22:10" (1/1) ... [2025-01-09 21:22:10,647 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:22:10" (1/1) ... [2025-01-09 21:22:10,650 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:22:10" (1/1) ... [2025-01-09 21:22:10,671 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:22:10" (1/1) ... [2025-01-09 21:22:10,673 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:22:10" (1/1) ... [2025-01-09 21:22:10,675 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-01-09 21:22:10,676 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-01-09 21:22:10,676 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-01-09 21:22:10,676 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-01-09 21:22:10,677 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:22:10" (1/1) ... [2025-01-09 21:22:10,680 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 21:22:10,692 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 21:22:10,701 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-01-09 21:22:10,707 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-01-09 21:22:10,719 INFO L130 BoogieDeclarations]: Found specification of procedure counter_thread [2025-01-09 21:22:10,720 INFO L138 BoogieDeclarations]: Found implementation of procedure counter_thread [2025-01-09 21:22:10,720 INFO L130 BoogieDeclarations]: Found specification of procedure monitor_thread [2025-01-09 21:22:10,720 INFO L138 BoogieDeclarations]: Found implementation of procedure monitor_thread [2025-01-09 21:22:10,720 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2025-01-09 21:22:10,720 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-01-09 21:22:10,720 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-01-09 21:22:10,720 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-01-09 21:22:10,720 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-01-09 21:22:10,720 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexTryLock [2025-01-09 21:22:10,720 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2025-01-09 21:22:10,720 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2025-01-09 21:22:10,720 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2025-01-09 21:22:10,721 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-01-09 21:22:10,890 INFO L234 CfgBuilder]: Building ICFG [2025-01-09 21:22:10,891 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-01-09 21:22:11,113 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-01-09 21:22:11,113 INFO L283 CfgBuilder]: Performing block encoding [2025-01-09 21:22:11,126 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-01-09 21:22:11,126 INFO L312 CfgBuilder]: Removed 10 assume(true) statements. [2025-01-09 21:22:11,127 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 09:22:11 BoogieIcfgContainer [2025-01-09 21:22:11,127 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-01-09 21:22:11,128 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-01-09 21:22:11,128 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-01-09 21:22:11,131 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-01-09 21:22:11,131 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.01 09:22:09" (1/3) ... [2025-01-09 21:22:11,131 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b7242e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 09:22:11, skipping insertion in model container [2025-01-09 21:22:11,131 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:22:10" (2/3) ... [2025-01-09 21:22:11,132 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b7242e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 09:22:11, skipping insertion in model container [2025-01-09 21:22:11,132 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 09:22:11" (3/3) ... [2025-01-09 21:22:11,132 INFO L128 eAbstractionObserver]: Analyzing ICFG 04-mutex_36-trylock_nr.i [2025-01-09 21:22:11,141 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-01-09 21:22:11,142 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 04-mutex_36-trylock_nr.i that has 3 procedures, 232 locations, 1 initial locations, 11 loop locations, and 14 error locations. [2025-01-09 21:22:11,142 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-01-09 21:22:11,191 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2025-01-09 21:22:11,212 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 238 places, 270 transitions, 554 flow [2025-01-09 21:22:11,262 INFO L124 PetriNetUnfolderBase]: 39/268 cut-off events. [2025-01-09 21:22:11,263 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2025-01-09 21:22:11,270 INFO L83 FinitePrefix]: Finished finitePrefix Result has 277 conditions, 268 events. 39/268 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 803 event pairs, 0 based on Foata normal form. 0/215 useless extension candidates. Maximal degree in co-relation 190. Up to 5 conditions per place. [2025-01-09 21:22:11,270 INFO L82 GeneralOperation]: Start removeDead. Operand has 238 places, 270 transitions, 554 flow [2025-01-09 21:22:11,274 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 229 places, 258 transitions, 528 flow [2025-01-09 21:22:11,278 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-01-09 21:22:11,285 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@16e7ae5a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-09 21:22:11,285 INFO L334 AbstractCegarLoop]: Starting to check reachability of 25 error locations. [2025-01-09 21:22:11,290 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-01-09 21:22:11,290 INFO L124 PetriNetUnfolderBase]: 0/26 cut-off events. [2025-01-09 21:22:11,290 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-01-09 21:22:11,290 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-09 21:22:11,291 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] [2025-01-09 21:22:11,291 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [monitor_threadErr0ASSERT_VIOLATIONDATA_RACE, monitor_threadErr1ASSERT_VIOLATIONDATA_RACE, monitor_threadErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2025-01-09 21:22:11,294 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 21:22:11,294 INFO L85 PathProgramCache]: Analyzing trace with hash 1722798123, now seen corresponding path program 1 times [2025-01-09 21:22:11,298 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 21:22:11,299 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [868644085] [2025-01-09 21:22:11,299 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 21:22:11,299 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 21:22:11,427 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 27 statements into 1 equivalence classes. [2025-01-09 21:22:11,435 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 27 of 27 statements. [2025-01-09 21:22:11,435 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 21:22:11,435 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 21:22:11,558 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 21:22:11,558 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 21:22:11,558 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [868644085] [2025-01-09 21:22:11,559 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [868644085] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 21:22:11,559 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 21:22:11,559 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-01-09 21:22:11,560 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [238730229] [2025-01-09 21:22:11,560 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 21:22:11,564 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-09 21:22:11,566 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 21:22:11,577 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-09 21:22:11,578 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-09 21:22:11,598 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 227 out of 270 [2025-01-09 21:22:11,600 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 229 places, 258 transitions, 528 flow. Second operand has 3 states, 3 states have (on average 228.33333333333334) internal successors, (685), 3 states have internal predecessors, (685), 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) [2025-01-09 21:22:11,600 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-09 21:22:11,600 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 227 of 270 [2025-01-09 21:22:11,605 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-09 21:22:11,704 INFO L124 PetriNetUnfolderBase]: 46/536 cut-off events. [2025-01-09 21:22:11,705 INFO L125 PetriNetUnfolderBase]: For 20/20 co-relation queries the response was YES. [2025-01-09 21:22:11,707 INFO L83 FinitePrefix]: Finished finitePrefix Result has 604 conditions, 536 events. 46/536 cut-off events. For 20/20 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 2902 event pairs, 15 based on Foata normal form. 93/542 useless extension candidates. Maximal degree in co-relation 465. Up to 48 conditions per place. [2025-01-09 21:22:11,709 INFO L140 encePairwiseOnDemand]: 250/270 looper letters, 13 selfloop transitions, 2 changer transitions 9/225 dead transitions. [2025-01-09 21:22:11,710 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 222 places, 225 transitions, 492 flow [2025-01-09 21:22:11,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-09 21:22:11,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-01-09 21:22:11,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 714 transitions. [2025-01-09 21:22:11,719 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8814814814814815 [2025-01-09 21:22:11,720 INFO L175 Difference]: Start difference. First operand has 229 places, 258 transitions, 528 flow. Second operand 3 states and 714 transitions. [2025-01-09 21:22:11,720 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 222 places, 225 transitions, 492 flow [2025-01-09 21:22:11,723 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 218 places, 225 transitions, 484 flow, removed 0 selfloop flow, removed 4 redundant places. [2025-01-09 21:22:11,726 INFO L231 Difference]: Finished difference. Result has 218 places, 216 transitions, 440 flow [2025-01-09 21:22:11,727 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=270, PETRI_DIFFERENCE_MINUEND_FLOW=454, PETRI_DIFFERENCE_MINUEND_PLACES=216, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=225, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=223, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=440, PETRI_PLACES=218, PETRI_TRANSITIONS=216} [2025-01-09 21:22:11,729 INFO L279 CegarLoopForPetriNet]: 229 programPoint places, -11 predicate places. [2025-01-09 21:22:11,730 INFO L471 AbstractCegarLoop]: Abstraction has has 218 places, 216 transitions, 440 flow [2025-01-09 21:22:11,730 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 228.33333333333334) internal successors, (685), 3 states have internal predecessors, (685), 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) [2025-01-09 21:22:11,730 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-09 21:22:11,730 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] [2025-01-09 21:22:11,730 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-01-09 21:22:11,731 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting counter_threadErr0ASSERT_VIOLATIONDATA_RACE === [monitor_threadErr0ASSERT_VIOLATIONDATA_RACE, monitor_threadErr1ASSERT_VIOLATIONDATA_RACE, monitor_threadErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2025-01-09 21:22:11,731 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 21:22:11,731 INFO L85 PathProgramCache]: Analyzing trace with hash -858077541, now seen corresponding path program 1 times [2025-01-09 21:22:11,731 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 21:22:11,731 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [268046794] [2025-01-09 21:22:11,731 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 21:22:11,732 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 21:22:11,753 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 39 statements into 1 equivalence classes. [2025-01-09 21:22:11,757 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 39 of 39 statements. [2025-01-09 21:22:11,757 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 21:22:11,757 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 21:22:11,812 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 21:22:11,812 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 21:22:11,812 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [268046794] [2025-01-09 21:22:11,812 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [268046794] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 21:22:11,812 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 21:22:11,813 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-01-09 21:22:11,813 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [187835547] [2025-01-09 21:22:11,813 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 21:22:11,813 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-09 21:22:11,814 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 21:22:11,814 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-09 21:22:11,814 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-09 21:22:11,825 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 229 out of 270 [2025-01-09 21:22:11,826 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 218 places, 216 transitions, 440 flow. Second operand has 3 states, 3 states have (on average 230.33333333333334) internal successors, (691), 3 states have internal predecessors, (691), 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) [2025-01-09 21:22:11,826 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-09 21:22:11,826 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 229 of 270 [2025-01-09 21:22:11,826 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-09 21:22:11,934 INFO L124 PetriNetUnfolderBase]: 67/665 cut-off events. [2025-01-09 21:22:11,934 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2025-01-09 21:22:11,937 INFO L83 FinitePrefix]: Finished finitePrefix Result has 749 conditions, 665 events. 67/665 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 4063 event pairs, 16 based on Foata normal form. 0/563 useless extension candidates. Maximal degree in co-relation 715. Up to 70 conditions per place. [2025-01-09 21:22:11,939 INFO L140 encePairwiseOnDemand]: 266/270 looper letters, 14 selfloop transitions, 2 changer transitions 0/217 dead transitions. [2025-01-09 21:22:11,939 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 210 places, 217 transitions, 475 flow [2025-01-09 21:22:11,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-09 21:22:11,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-01-09 21:22:11,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 705 transitions. [2025-01-09 21:22:11,943 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8703703703703703 [2025-01-09 21:22:11,943 INFO L175 Difference]: Start difference. First operand has 218 places, 216 transitions, 440 flow. Second operand 3 states and 705 transitions. [2025-01-09 21:22:11,943 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 210 places, 217 transitions, 475 flow [2025-01-09 21:22:11,944 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 208 places, 217 transitions, 471 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-01-09 21:22:11,947 INFO L231 Difference]: Finished difference. Result has 209 places, 216 transitions, 446 flow [2025-01-09 21:22:11,948 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=270, PETRI_DIFFERENCE_MINUEND_FLOW=432, PETRI_DIFFERENCE_MINUEND_PLACES=206, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=214, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=212, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=446, PETRI_PLACES=209, PETRI_TRANSITIONS=216} [2025-01-09 21:22:11,948 INFO L279 CegarLoopForPetriNet]: 229 programPoint places, -20 predicate places. [2025-01-09 21:22:11,948 INFO L471 AbstractCegarLoop]: Abstraction has has 209 places, 216 transitions, 446 flow [2025-01-09 21:22:11,949 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 230.33333333333334) internal successors, (691), 3 states have internal predecessors, (691), 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) [2025-01-09 21:22:11,949 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-09 21:22:11,949 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] [2025-01-09 21:22:11,949 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-01-09 21:22:11,949 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [monitor_threadErr0ASSERT_VIOLATIONDATA_RACE, monitor_threadErr1ASSERT_VIOLATIONDATA_RACE, monitor_threadErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2025-01-09 21:22:11,950 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 21:22:11,950 INFO L85 PathProgramCache]: Analyzing trace with hash -477171748, now seen corresponding path program 1 times [2025-01-09 21:22:11,950 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 21:22:11,950 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1863987928] [2025-01-09 21:22:11,950 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 21:22:11,950 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 21:22:11,973 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 39 statements into 1 equivalence classes. [2025-01-09 21:22:11,977 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 39 of 39 statements. [2025-01-09 21:22:11,977 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 21:22:11,977 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 21:22:12,023 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 21:22:12,023 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 21:22:12,023 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1863987928] [2025-01-09 21:22:12,023 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1863987928] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 21:22:12,023 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 21:22:12,024 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-01-09 21:22:12,024 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [302103869] [2025-01-09 21:22:12,024 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 21:22:12,024 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-09 21:22:12,027 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 21:22:12,027 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-09 21:22:12,027 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-09 21:22:12,052 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 212 out of 270 [2025-01-09 21:22:12,054 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 209 places, 216 transitions, 446 flow. Second operand has 3 states, 3 states have (on average 213.0) internal successors, (639), 3 states have internal predecessors, (639), 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) [2025-01-09 21:22:12,054 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-09 21:22:12,054 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 212 of 270 [2025-01-09 21:22:12,054 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-09 21:22:12,263 INFO L124 PetriNetUnfolderBase]: 381/1655 cut-off events. [2025-01-09 21:22:12,263 INFO L125 PetriNetUnfolderBase]: For 8/11 co-relation queries the response was YES. [2025-01-09 21:22:12,268 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2139 conditions, 1655 events. 381/1655 cut-off events. For 8/11 co-relation queries the response was YES. Maximal size of possible extension queue 83. Compared 13078 event pairs, 100 based on Foata normal form. 2/1488 useless extension candidates. Maximal degree in co-relation 1916. Up to 435 conditions per place. [2025-01-09 21:22:12,273 INFO L140 encePairwiseOnDemand]: 254/270 looper letters, 27 selfloop transitions, 7 changer transitions 5/221 dead transitions. [2025-01-09 21:22:12,273 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 203 places, 221 transitions, 530 flow [2025-01-09 21:22:12,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-09 21:22:12,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-01-09 21:22:12,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 680 transitions. [2025-01-09 21:22:12,276 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8395061728395061 [2025-01-09 21:22:12,276 INFO L175 Difference]: Start difference. First operand has 209 places, 216 transitions, 446 flow. Second operand 3 states and 680 transitions. [2025-01-09 21:22:12,276 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 203 places, 221 transitions, 530 flow [2025-01-09 21:22:12,277 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 203 places, 221 transitions, 530 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-01-09 21:22:12,280 INFO L231 Difference]: Finished difference. Result has 204 places, 210 transitions, 468 flow [2025-01-09 21:22:12,280 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=270, PETRI_DIFFERENCE_MINUEND_FLOW=430, PETRI_DIFFERENCE_MINUEND_PLACES=201, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=208, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=201, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=468, PETRI_PLACES=204, PETRI_TRANSITIONS=210} [2025-01-09 21:22:12,281 INFO L279 CegarLoopForPetriNet]: 229 programPoint places, -25 predicate places. [2025-01-09 21:22:12,281 INFO L471 AbstractCegarLoop]: Abstraction has has 204 places, 210 transitions, 468 flow [2025-01-09 21:22:12,281 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 213.0) internal successors, (639), 3 states have internal predecessors, (639), 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) [2025-01-09 21:22:12,281 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-09 21:22:12,281 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 21:22:12,281 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-01-09 21:22:12,282 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting counter_threadErr2ASSERT_VIOLATIONDATA_RACE === [monitor_threadErr0ASSERT_VIOLATIONDATA_RACE, monitor_threadErr1ASSERT_VIOLATIONDATA_RACE, monitor_threadErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2025-01-09 21:22:12,282 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 21:22:12,282 INFO L85 PathProgramCache]: Analyzing trace with hash -2092484760, now seen corresponding path program 1 times [2025-01-09 21:22:12,282 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 21:22:12,282 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [87469763] [2025-01-09 21:22:12,282 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 21:22:12,282 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 21:22:12,298 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 49 statements into 1 equivalence classes. [2025-01-09 21:22:12,304 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 49 of 49 statements. [2025-01-09 21:22:12,304 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 21:22:12,304 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 21:22:12,345 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 21:22:12,345 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 21:22:12,345 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [87469763] [2025-01-09 21:22:12,345 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [87469763] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 21:22:12,346 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 21:22:12,346 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-01-09 21:22:12,346 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [819799064] [2025-01-09 21:22:12,346 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 21:22:12,346 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-09 21:22:12,346 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 21:22:12,347 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-09 21:22:12,347 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-09 21:22:12,357 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 229 out of 270 [2025-01-09 21:22:12,357 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 204 places, 210 transitions, 468 flow. Second operand has 3 states, 3 states have (on average 230.33333333333334) internal successors, (691), 3 states have internal predecessors, (691), 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) [2025-01-09 21:22:12,358 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-09 21:22:12,358 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 229 of 270 [2025-01-09 21:22:12,358 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-09 21:22:12,536 INFO L124 PetriNetUnfolderBase]: 216/1589 cut-off events. [2025-01-09 21:22:12,536 INFO L125 PetriNetUnfolderBase]: For 10/10 co-relation queries the response was YES. [2025-01-09 21:22:12,543 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1928 conditions, 1589 events. 216/1589 cut-off events. For 10/10 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 11787 event pairs, 21 based on Foata normal form. 0/1403 useless extension candidates. Maximal degree in co-relation 1734. Up to 139 conditions per place. [2025-01-09 21:22:12,547 INFO L140 encePairwiseOnDemand]: 264/270 looper letters, 18 selfloop transitions, 4 changer transitions 0/218 dead transitions. [2025-01-09 21:22:12,547 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 200 places, 218 transitions, 530 flow [2025-01-09 21:22:12,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-09 21:22:12,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-01-09 21:22:12,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 711 transitions. [2025-01-09 21:22:12,549 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8777777777777778 [2025-01-09 21:22:12,550 INFO L175 Difference]: Start difference. First operand has 204 places, 210 transitions, 468 flow. Second operand 3 states and 711 transitions. [2025-01-09 21:22:12,550 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 200 places, 218 transitions, 530 flow [2025-01-09 21:22:12,551 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 200 places, 218 transitions, 530 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-01-09 21:22:12,553 INFO L231 Difference]: Finished difference. Result has 202 places, 212 transitions, 496 flow [2025-01-09 21:22:12,554 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=270, PETRI_DIFFERENCE_MINUEND_FLOW=466, PETRI_DIFFERENCE_MINUEND_PLACES=198, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=209, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=205, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=496, PETRI_PLACES=202, PETRI_TRANSITIONS=212} [2025-01-09 21:22:12,554 INFO L279 CegarLoopForPetriNet]: 229 programPoint places, -27 predicate places. [2025-01-09 21:22:12,554 INFO L471 AbstractCegarLoop]: Abstraction has has 202 places, 212 transitions, 496 flow [2025-01-09 21:22:12,555 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 230.33333333333334) internal successors, (691), 3 states have internal predecessors, (691), 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) [2025-01-09 21:22:12,555 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-09 21:22:12,555 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 21:22:12,555 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-01-09 21:22:12,555 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting counter_threadErr3ASSERT_VIOLATIONDATA_RACE === [monitor_threadErr0ASSERT_VIOLATIONDATA_RACE, monitor_threadErr1ASSERT_VIOLATIONDATA_RACE, monitor_threadErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2025-01-09 21:22:12,556 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 21:22:12,556 INFO L85 PathProgramCache]: Analyzing trace with hash 768493532, now seen corresponding path program 1 times [2025-01-09 21:22:12,556 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 21:22:12,556 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1150759214] [2025-01-09 21:22:12,556 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 21:22:12,556 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 21:22:12,572 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 54 statements into 1 equivalence classes. [2025-01-09 21:22:12,575 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 54 of 54 statements. [2025-01-09 21:22:12,576 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 21:22:12,576 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 21:22:12,615 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 21:22:12,615 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 21:22:12,615 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1150759214] [2025-01-09 21:22:12,615 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1150759214] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 21:22:12,615 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 21:22:12,615 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-01-09 21:22:12,615 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [516420456] [2025-01-09 21:22:12,616 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 21:22:12,616 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-09 21:22:12,616 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 21:22:12,616 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-09 21:22:12,616 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-09 21:22:12,629 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 230 out of 270 [2025-01-09 21:22:12,630 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 202 places, 212 transitions, 496 flow. Second operand has 3 states, 3 states have (on average 232.0) internal successors, (696), 3 states have internal predecessors, (696), 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) [2025-01-09 21:22:12,630 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-09 21:22:12,630 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 230 of 270 [2025-01-09 21:22:12,630 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-09 21:22:12,903 INFO L124 PetriNetUnfolderBase]: 355/2486 cut-off events. [2025-01-09 21:22:12,903 INFO L125 PetriNetUnfolderBase]: For 114/117 co-relation queries the response was YES. [2025-01-09 21:22:12,912 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3107 conditions, 2486 events. 355/2486 cut-off events. For 114/117 co-relation queries the response was YES. Maximal size of possible extension queue 68. Compared 20845 event pairs, 42 based on Foata normal form. 2/2191 useless extension candidates. Maximal degree in co-relation 2908. Up to 233 conditions per place. [2025-01-09 21:22:12,919 INFO L140 encePairwiseOnDemand]: 265/270 looper letters, 20 selfloop transitions, 6 changer transitions 0/223 dead transitions. [2025-01-09 21:22:12,919 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 204 places, 223 transitions, 584 flow [2025-01-09 21:22:12,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-09 21:22:12,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-01-09 21:22:12,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 713 transitions. [2025-01-09 21:22:12,921 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8802469135802469 [2025-01-09 21:22:12,921 INFO L175 Difference]: Start difference. First operand has 202 places, 212 transitions, 496 flow. Second operand 3 states and 713 transitions. [2025-01-09 21:22:12,921 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 204 places, 223 transitions, 584 flow [2025-01-09 21:22:12,923 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 202 places, 223 transitions, 572 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-01-09 21:22:12,924 INFO L231 Difference]: Finished difference. Result has 204 places, 217 transitions, 542 flow [2025-01-09 21:22:12,925 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=270, PETRI_DIFFERENCE_MINUEND_FLOW=488, PETRI_DIFFERENCE_MINUEND_PLACES=200, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=212, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=206, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=542, PETRI_PLACES=204, PETRI_TRANSITIONS=217} [2025-01-09 21:22:12,925 INFO L279 CegarLoopForPetriNet]: 229 programPoint places, -25 predicate places. [2025-01-09 21:22:12,925 INFO L471 AbstractCegarLoop]: Abstraction has has 204 places, 217 transitions, 542 flow [2025-01-09 21:22:12,926 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 232.0) internal successors, (696), 3 states have internal predecessors, (696), 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) [2025-01-09 21:22:12,926 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-09 21:22:12,926 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 21:22:12,926 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-01-09 21:22:12,926 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting monitor_threadErr2ASSERT_VIOLATIONDATA_RACE === [monitor_threadErr0ASSERT_VIOLATIONDATA_RACE, monitor_threadErr1ASSERT_VIOLATIONDATA_RACE, monitor_threadErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2025-01-09 21:22:12,927 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 21:22:12,927 INFO L85 PathProgramCache]: Analyzing trace with hash 1021191120, now seen corresponding path program 1 times [2025-01-09 21:22:12,927 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 21:22:12,927 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [679529281] [2025-01-09 21:22:12,927 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 21:22:12,927 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 21:22:12,940 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 79 statements into 1 equivalence classes. [2025-01-09 21:22:12,945 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 79 of 79 statements. [2025-01-09 21:22:12,945 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 21:22:12,945 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 21:22:13,131 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 21:22:13,132 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 21:22:13,132 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [679529281] [2025-01-09 21:22:13,132 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [679529281] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 21:22:13,132 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 21:22:13,132 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-01-09 21:22:13,132 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [136773452] [2025-01-09 21:22:13,132 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 21:22:13,132 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-01-09 21:22:13,133 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 21:22:13,133 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-01-09 21:22:13,133 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-01-09 21:22:13,159 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 226 out of 270 [2025-01-09 21:22:13,161 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 204 places, 217 transitions, 542 flow. Second operand has 5 states, 5 states have (on average 227.8) internal successors, (1139), 5 states have internal predecessors, (1139), 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) [2025-01-09 21:22:13,161 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-09 21:22:13,161 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 226 of 270 [2025-01-09 21:22:13,161 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-09 21:22:13,606 INFO L124 PetriNetUnfolderBase]: 783/4911 cut-off events. [2025-01-09 21:22:13,606 INFO L125 PetriNetUnfolderBase]: For 291/304 co-relation queries the response was YES. [2025-01-09 21:22:13,622 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6422 conditions, 4911 events. 783/4911 cut-off events. For 291/304 co-relation queries the response was YES. Maximal size of possible extension queue 136. Compared 48382 event pairs, 74 based on Foata normal form. 4/4365 useless extension candidates. Maximal degree in co-relation 6173. Up to 404 conditions per place. [2025-01-09 21:22:13,635 INFO L140 encePairwiseOnDemand]: 260/270 looper letters, 31 selfloop transitions, 23 changer transitions 0/254 dead transitions. [2025-01-09 21:22:13,635 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 212 places, 254 transitions, 728 flow [2025-01-09 21:22:13,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-01-09 21:22:13,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2025-01-09 21:22:13,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 2090 transitions. [2025-01-09 21:22:13,639 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8600823045267489 [2025-01-09 21:22:13,640 INFO L175 Difference]: Start difference. First operand has 204 places, 217 transitions, 542 flow. Second operand 9 states and 2090 transitions. [2025-01-09 21:22:13,640 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 212 places, 254 transitions, 728 flow [2025-01-09 21:22:13,644 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 210 places, 254 transitions, 716 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-01-09 21:22:13,646 INFO L231 Difference]: Finished difference. Result has 218 places, 239 transitions, 700 flow [2025-01-09 21:22:13,646 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=270, PETRI_DIFFERENCE_MINUEND_FLOW=530, PETRI_DIFFERENCE_MINUEND_PLACES=202, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=217, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=208, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=700, PETRI_PLACES=218, PETRI_TRANSITIONS=239} [2025-01-09 21:22:13,647 INFO L279 CegarLoopForPetriNet]: 229 programPoint places, -11 predicate places. [2025-01-09 21:22:13,647 INFO L471 AbstractCegarLoop]: Abstraction has has 218 places, 239 transitions, 700 flow [2025-01-09 21:22:13,648 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 227.8) internal successors, (1139), 5 states have internal predecessors, (1139), 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) [2025-01-09 21:22:13,648 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-09 21:22:13,648 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 21:22:13,648 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-01-09 21:22:13,648 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting monitor_threadErr2ASSERT_VIOLATIONDATA_RACE === [monitor_threadErr0ASSERT_VIOLATIONDATA_RACE, monitor_threadErr1ASSERT_VIOLATIONDATA_RACE, monitor_threadErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2025-01-09 21:22:13,649 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 21:22:13,649 INFO L85 PathProgramCache]: Analyzing trace with hash -1442741724, now seen corresponding path program 2 times [2025-01-09 21:22:13,650 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 21:22:13,650 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1921778736] [2025-01-09 21:22:13,650 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-01-09 21:22:13,650 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 21:22:13,669 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 79 statements into 1 equivalence classes. [2025-01-09 21:22:13,675 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 79 of 79 statements. [2025-01-09 21:22:13,675 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-01-09 21:22:13,675 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 21:22:13,845 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 21:22:13,846 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 21:22:13,846 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1921778736] [2025-01-09 21:22:13,846 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1921778736] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 21:22:13,846 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 21:22:13,846 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-01-09 21:22:13,846 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [951305278] [2025-01-09 21:22:13,846 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 21:22:13,847 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-01-09 21:22:13,847 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 21:22:13,847 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-01-09 21:22:13,848 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-01-09 21:22:13,886 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 226 out of 270 [2025-01-09 21:22:13,887 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 218 places, 239 transitions, 700 flow. Second operand has 5 states, 5 states have (on average 227.8) internal successors, (1139), 5 states have internal predecessors, (1139), 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) [2025-01-09 21:22:13,887 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-09 21:22:13,887 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 226 of 270 [2025-01-09 21:22:13,887 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-09 21:22:14,521 INFO L124 PetriNetUnfolderBase]: 1086/7336 cut-off events. [2025-01-09 21:22:14,521 INFO L125 PetriNetUnfolderBase]: For 1704/1852 co-relation queries the response was YES. [2025-01-09 21:22:14,548 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10540 conditions, 7336 events. 1086/7336 cut-off events. For 1704/1852 co-relation queries the response was YES. Maximal size of possible extension queue 212. Compared 81297 event pairs, 61 based on Foata normal form. 38/6608 useless extension candidates. Maximal degree in co-relation 10245. Up to 606 conditions per place. [2025-01-09 21:22:14,566 INFO L140 encePairwiseOnDemand]: 260/270 looper letters, 39 selfloop transitions, 33 changer transitions 0/272 dead transitions. [2025-01-09 21:22:14,566 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 223 places, 272 transitions, 1011 flow [2025-01-09 21:22:14,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-09 21:22:14,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-01-09 21:22:14,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1404 transitions. [2025-01-09 21:22:14,570 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8666666666666667 [2025-01-09 21:22:14,570 INFO L175 Difference]: Start difference. First operand has 218 places, 239 transitions, 700 flow. Second operand 6 states and 1404 transitions. [2025-01-09 21:22:14,570 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 223 places, 272 transitions, 1011 flow [2025-01-09 21:22:14,575 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 223 places, 272 transitions, 1011 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-01-09 21:22:14,577 INFO L231 Difference]: Finished difference. Result has 228 places, 260 transitions, 970 flow [2025-01-09 21:22:14,578 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=270, PETRI_DIFFERENCE_MINUEND_FLOW=700, PETRI_DIFFERENCE_MINUEND_PLACES=218, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=239, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=217, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=970, PETRI_PLACES=228, PETRI_TRANSITIONS=260} [2025-01-09 21:22:14,578 INFO L279 CegarLoopForPetriNet]: 229 programPoint places, -1 predicate places. [2025-01-09 21:22:14,578 INFO L471 AbstractCegarLoop]: Abstraction has has 228 places, 260 transitions, 970 flow [2025-01-09 21:22:14,579 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 227.8) internal successors, (1139), 5 states have internal predecessors, (1139), 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) [2025-01-09 21:22:14,579 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-09 21:22:14,579 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 21:22:14,579 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-01-09 21:22:14,580 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting monitor_threadErr2ASSERT_VIOLATIONDATA_RACE === [monitor_threadErr0ASSERT_VIOLATIONDATA_RACE, monitor_threadErr1ASSERT_VIOLATIONDATA_RACE, monitor_threadErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2025-01-09 21:22:14,580 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 21:22:14,580 INFO L85 PathProgramCache]: Analyzing trace with hash 399247566, now seen corresponding path program 3 times [2025-01-09 21:22:14,581 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 21:22:14,581 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1558944274] [2025-01-09 21:22:14,581 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-01-09 21:22:14,581 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 21:22:14,598 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 79 statements into 1 equivalence classes. [2025-01-09 21:22:14,604 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) and asserted 79 of 79 statements. [2025-01-09 21:22:14,604 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2025-01-09 21:22:14,604 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 21:22:14,744 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 21:22:14,744 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 21:22:14,744 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1558944274] [2025-01-09 21:22:14,744 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1558944274] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 21:22:14,744 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 21:22:14,744 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-01-09 21:22:14,744 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [275480216] [2025-01-09 21:22:14,744 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 21:22:14,745 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-01-09 21:22:14,745 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 21:22:14,745 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-01-09 21:22:14,745 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-01-09 21:22:14,772 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 226 out of 270 [2025-01-09 21:22:14,773 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 228 places, 260 transitions, 970 flow. Second operand has 5 states, 5 states have (on average 227.8) internal successors, (1139), 5 states have internal predecessors, (1139), 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) [2025-01-09 21:22:14,774 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-09 21:22:14,774 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 226 of 270 [2025-01-09 21:22:14,774 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-09 21:22:15,513 INFO L124 PetriNetUnfolderBase]: 1293/8593 cut-off events. [2025-01-09 21:22:15,514 INFO L125 PetriNetUnfolderBase]: For 5377/5776 co-relation queries the response was YES. [2025-01-09 21:22:15,550 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13578 conditions, 8593 events. 1293/8593 cut-off events. For 5377/5776 co-relation queries the response was YES. Maximal size of possible extension queue 237. Compared 97495 event pairs, 69 based on Foata normal form. 156/7846 useless extension candidates. Maximal degree in co-relation 13248. Up to 706 conditions per place. [2025-01-09 21:22:15,638 INFO L140 encePairwiseOnDemand]: 257/270 looper letters, 40 selfloop transitions, 68 changer transitions 0/308 dead transitions. [2025-01-09 21:22:15,638 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 234 places, 308 transitions, 1538 flow [2025-01-09 21:22:15,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-01-09 21:22:15,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2025-01-09 21:22:15,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1645 transitions. [2025-01-09 21:22:15,644 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8703703703703703 [2025-01-09 21:22:15,644 INFO L175 Difference]: Start difference. First operand has 228 places, 260 transitions, 970 flow. Second operand 7 states and 1645 transitions. [2025-01-09 21:22:15,644 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 234 places, 308 transitions, 1538 flow [2025-01-09 21:22:15,653 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 234 places, 308 transitions, 1522 flow, removed 8 selfloop flow, removed 0 redundant places. [2025-01-09 21:22:15,656 INFO L231 Difference]: Finished difference. Result has 240 places, 295 transitions, 1557 flow [2025-01-09 21:22:15,656 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=270, PETRI_DIFFERENCE_MINUEND_FLOW=954, PETRI_DIFFERENCE_MINUEND_PLACES=228, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=260, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=36, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=211, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=1557, PETRI_PLACES=240, PETRI_TRANSITIONS=295} [2025-01-09 21:22:15,657 INFO L279 CegarLoopForPetriNet]: 229 programPoint places, 11 predicate places. [2025-01-09 21:22:15,657 INFO L471 AbstractCegarLoop]: Abstraction has has 240 places, 295 transitions, 1557 flow [2025-01-09 21:22:15,657 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 227.8) internal successors, (1139), 5 states have internal predecessors, (1139), 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) [2025-01-09 21:22:15,657 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-09 21:22:15,658 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 21:22:15,658 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-01-09 21:22:15,658 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting monitor_threadErr2ASSERT_VIOLATIONDATA_RACE === [monitor_threadErr0ASSERT_VIOLATIONDATA_RACE, monitor_threadErr1ASSERT_VIOLATIONDATA_RACE, monitor_threadErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2025-01-09 21:22:15,658 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 21:22:15,658 INFO L85 PathProgramCache]: Analyzing trace with hash -535176828, now seen corresponding path program 4 times [2025-01-09 21:22:15,658 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 21:22:15,658 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [583172083] [2025-01-09 21:22:15,658 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-01-09 21:22:15,658 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 21:22:15,670 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 79 statements into 2 equivalence classes. [2025-01-09 21:22:15,673 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 1 check-sat command(s) and asserted 69 of 79 statements. [2025-01-09 21:22:15,673 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 1 check-sat command(s) [2025-01-09 21:22:15,673 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 21:22:15,756 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 21:22:15,756 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 21:22:15,756 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [583172083] [2025-01-09 21:22:15,756 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [583172083] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 21:22:15,756 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 21:22:15,756 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-01-09 21:22:15,756 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [832937178] [2025-01-09 21:22:15,756 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 21:22:15,757 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-01-09 21:22:15,757 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 21:22:15,757 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-01-09 21:22:15,757 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-01-09 21:22:15,791 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 226 out of 270 [2025-01-09 21:22:15,792 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 240 places, 295 transitions, 1557 flow. Second operand has 5 states, 5 states have (on average 227.8) internal successors, (1139), 5 states have internal predecessors, (1139), 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) [2025-01-09 21:22:15,792 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-09 21:22:15,792 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 226 of 270 [2025-01-09 21:22:15,792 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-09 21:22:16,294 INFO L124 PetriNetUnfolderBase]: 773/5294 cut-off events. [2025-01-09 21:22:16,294 INFO L125 PetriNetUnfolderBase]: For 6739/7148 co-relation queries the response was YES. [2025-01-09 21:22:16,310 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9028 conditions, 5294 events. 773/5294 cut-off events. For 6739/7148 co-relation queries the response was YES. Maximal size of possible extension queue 177. Compared 56318 event pairs, 52 based on Foata normal form. 132/4873 useless extension candidates. Maximal degree in co-relation 8671. Up to 434 conditions per place. [2025-01-09 21:22:16,312 INFO L140 encePairwiseOnDemand]: 260/270 looper letters, 0 selfloop transitions, 0 changer transitions 297/297 dead transitions. [2025-01-09 21:22:16,313 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 244 places, 297 transitions, 1804 flow [2025-01-09 21:22:16,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-01-09 21:22:16,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2025-01-09 21:22:16,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1638 transitions. [2025-01-09 21:22:16,315 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8666666666666667 [2025-01-09 21:22:16,315 INFO L175 Difference]: Start difference. First operand has 240 places, 295 transitions, 1557 flow. Second operand 7 states and 1638 transitions. [2025-01-09 21:22:16,315 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 244 places, 297 transitions, 1804 flow [2025-01-09 21:22:16,327 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 241 places, 297 transitions, 1664 flow, removed 25 selfloop flow, removed 3 redundant places. [2025-01-09 21:22:16,328 INFO L231 Difference]: Finished difference. Result has 241 places, 0 transitions, 0 flow [2025-01-09 21:22:16,328 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=270, PETRI_DIFFERENCE_MINUEND_FLOW=1289, PETRI_DIFFERENCE_MINUEND_PLACES=235, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=278, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=278, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=0, PETRI_PLACES=241, PETRI_TRANSITIONS=0} [2025-01-09 21:22:16,329 INFO L279 CegarLoopForPetriNet]: 229 programPoint places, 12 predicate places. [2025-01-09 21:22:16,329 INFO L471 AbstractCegarLoop]: Abstraction has has 241 places, 0 transitions, 0 flow [2025-01-09 21:22:16,329 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 227.8) internal successors, (1139), 5 states have internal predecessors, (1139), 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) [2025-01-09 21:22:16,331 INFO L782 garLoopResultBuilder]: Registering result SAFE for location monitor_threadErr0ASSERT_VIOLATIONDATA_RACE (24 of 25 remaining) [2025-01-09 21:22:16,331 INFO L782 garLoopResultBuilder]: Registering result SAFE for location monitor_threadErr1ASSERT_VIOLATIONDATA_RACE (23 of 25 remaining) [2025-01-09 21:22:16,331 INFO L782 garLoopResultBuilder]: Registering result SAFE for location monitor_threadErr2ASSERT_VIOLATIONDATA_RACE (22 of 25 remaining) [2025-01-09 21:22:16,332 INFO L782 garLoopResultBuilder]: Registering result SAFE for location monitor_threadErr3ASSERT_VIOLATIONDATA_RACE (21 of 25 remaining) [2025-01-09 21:22:16,332 INFO L782 garLoopResultBuilder]: Registering result SAFE for location counter_threadErr0ASSERT_VIOLATIONDATA_RACE (20 of 25 remaining) [2025-01-09 21:22:16,332 INFO L782 garLoopResultBuilder]: Registering result SAFE for location counter_threadErr1ASSERT_VIOLATIONDATA_RACE (19 of 25 remaining) [2025-01-09 21:22:16,332 INFO L782 garLoopResultBuilder]: Registering result SAFE for location counter_threadErr2ASSERT_VIOLATIONDATA_RACE (18 of 25 remaining) [2025-01-09 21:22:16,332 INFO L782 garLoopResultBuilder]: Registering result SAFE for location counter_threadErr4ASSERT_VIOLATIONDATA_RACE (17 of 25 remaining) [2025-01-09 21:22:16,332 INFO L782 garLoopResultBuilder]: Registering result SAFE for location counter_threadErr3ASSERT_VIOLATIONDATA_RACE (16 of 25 remaining) [2025-01-09 21:22:16,332 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (15 of 25 remaining) [2025-01-09 21:22:16,332 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (14 of 25 remaining) [2025-01-09 21:22:16,332 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (13 of 25 remaining) [2025-01-09 21:22:16,332 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (12 of 25 remaining) [2025-01-09 21:22:16,332 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (11 of 25 remaining) [2025-01-09 21:22:16,332 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (10 of 25 remaining) [2025-01-09 21:22:16,332 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 25 remaining) [2025-01-09 21:22:16,332 INFO L782 garLoopResultBuilder]: Registering result SAFE for location monitor_threadErr0ASSERT_VIOLATIONDATA_RACE (8 of 25 remaining) [2025-01-09 21:22:16,333 INFO L782 garLoopResultBuilder]: Registering result SAFE for location monitor_threadErr1ASSERT_VIOLATIONDATA_RACE (7 of 25 remaining) [2025-01-09 21:22:16,333 INFO L782 garLoopResultBuilder]: Registering result SAFE for location monitor_threadErr2ASSERT_VIOLATIONDATA_RACE (6 of 25 remaining) [2025-01-09 21:22:16,333 INFO L782 garLoopResultBuilder]: Registering result SAFE for location monitor_threadErr3ASSERT_VIOLATIONDATA_RACE (5 of 25 remaining) [2025-01-09 21:22:16,333 INFO L782 garLoopResultBuilder]: Registering result SAFE for location counter_threadErr0ASSERT_VIOLATIONDATA_RACE (4 of 25 remaining) [2025-01-09 21:22:16,333 INFO L782 garLoopResultBuilder]: Registering result SAFE for location counter_threadErr1ASSERT_VIOLATIONDATA_RACE (3 of 25 remaining) [2025-01-09 21:22:16,333 INFO L782 garLoopResultBuilder]: Registering result SAFE for location counter_threadErr2ASSERT_VIOLATIONDATA_RACE (2 of 25 remaining) [2025-01-09 21:22:16,333 INFO L782 garLoopResultBuilder]: Registering result SAFE for location counter_threadErr4ASSERT_VIOLATIONDATA_RACE (1 of 25 remaining) [2025-01-09 21:22:16,333 INFO L782 garLoopResultBuilder]: Registering result SAFE for location counter_threadErr3ASSERT_VIOLATIONDATA_RACE (0 of 25 remaining) [2025-01-09 21:22:16,333 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-01-09 21:22:16,333 INFO L422 BasicCegarLoop]: Path program histogram: [4, 1, 1, 1, 1, 1] [2025-01-09 21:22:16,336 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-01-09 21:22:16,337 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-01-09 21:22:16,340 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.01 09:22:16 BasicIcfg [2025-01-09 21:22:16,340 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-01-09 21:22:16,340 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-01-09 21:22:16,340 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-01-09 21:22:16,340 INFO L274 PluginConnector]: Witness Printer initialized [2025-01-09 21:22:16,341 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 09:22:11" (3/4) ... [2025-01-09 21:22:16,342 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-01-09 21:22:16,343 INFO L362 RCFGBacktranslator]: Ignoring RootEdge to procedure monitor_thread [2025-01-09 21:22:16,343 INFO L362 RCFGBacktranslator]: Ignoring RootEdge to procedure counter_thread [2025-01-09 21:22:16,345 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2025-01-09 21:22:16,346 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2025-01-09 21:22:16,346 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2025-01-09 21:22:16,392 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-01-09 21:22:16,393 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.yml [2025-01-09 21:22:16,393 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-01-09 21:22:16,393 INFO L158 Benchmark]: Toolchain (without parser) took 6478.52ms. Allocated memory was 142.6MB in the beginning and 562.0MB in the end (delta: 419.4MB). Free memory was 103.7MB in the beginning and 302.9MB in the end (delta: -199.2MB). Peak memory consumption was 218.0MB. Max. memory is 16.1GB. [2025-01-09 21:22:16,393 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 226.5MB. Free memory is still 147.5MB. There was no memory consumed. Max. memory is 16.1GB. [2025-01-09 21:22:16,394 INFO L158 Benchmark]: CACSL2BoogieTranslator took 684.83ms. Allocated memory is still 142.6MB. Free memory was 103.7MB in the beginning and 42.6MB in the end (delta: 61.1MB). Peak memory consumption was 58.7MB. Max. memory is 16.1GB. [2025-01-09 21:22:16,394 INFO L158 Benchmark]: Boogie Procedure Inliner took 30.87ms. Allocated memory is still 142.6MB. Free memory was 42.6MB in the beginning and 40.4MB in the end (delta: 2.2MB). There was no memory consumed. Max. memory is 16.1GB. [2025-01-09 21:22:16,394 INFO L158 Benchmark]: Boogie Preprocessor took 43.28ms. Allocated memory is still 142.6MB. Free memory was 40.4MB in the beginning and 106.8MB in the end (delta: -66.4MB). Peak memory consumption was 14.6MB. Max. memory is 16.1GB. [2025-01-09 21:22:16,394 INFO L158 Benchmark]: RCFGBuilder took 451.01ms. Allocated memory is still 142.6MB. Free memory was 106.8MB in the beginning and 78.9MB in the end (delta: 27.9MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2025-01-09 21:22:16,394 INFO L158 Benchmark]: TraceAbstraction took 5211.77ms. Allocated memory was 142.6MB in the beginning and 562.0MB in the end (delta: 419.4MB). Free memory was 78.1MB in the beginning and 307.2MB in the end (delta: -229.1MB). Peak memory consumption was 422.2MB. Max. memory is 16.1GB. [2025-01-09 21:22:16,395 INFO L158 Benchmark]: Witness Printer took 52.67ms. Allocated memory is still 562.0MB. Free memory was 307.2MB in the beginning and 302.9MB in the end (delta: 4.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-01-09 21:22:16,395 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 226.5MB. Free memory is still 147.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 684.83ms. Allocated memory is still 142.6MB. Free memory was 103.7MB in the beginning and 42.6MB in the end (delta: 61.1MB). Peak memory consumption was 58.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 30.87ms. Allocated memory is still 142.6MB. Free memory was 42.6MB in the beginning and 40.4MB in the end (delta: 2.2MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 43.28ms. Allocated memory is still 142.6MB. Free memory was 40.4MB in the beginning and 106.8MB in the end (delta: -66.4MB). Peak memory consumption was 14.6MB. Max. memory is 16.1GB. * RCFGBuilder took 451.01ms. Allocated memory is still 142.6MB. Free memory was 106.8MB in the beginning and 78.9MB in the end (delta: 27.9MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * TraceAbstraction took 5211.77ms. Allocated memory was 142.6MB in the beginning and 562.0MB in the end (delta: 419.4MB). Free memory was 78.1MB in the beginning and 307.2MB in the end (delta: -229.1MB). Peak memory consumption was 422.2MB. Max. memory is 16.1GB. * Witness Printer took 52.67ms. Allocated memory is still 562.0MB. Free memory was 307.2MB in the beginning and 302.9MB in the end (delta: 4.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 1819]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1824]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1825]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1828]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1803]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1806]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1808]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1811]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1808]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1843]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1846]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1849]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1852]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1855]: there are no data races For all program executions holds that there are no data races at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 356 locations, 25 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 5.1s, OverallIterations: 9, TraceHistogramMax: 1, PathProgramHistogramMax: 4, EmptinessCheckTime: 0.0s, AutomataDifference: 3.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 330 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 211 mSDsluCounter, 166 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 91 mSDsCounter, 72 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 585 IncrementalHoareTripleChecker+Invalid, 657 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 72 mSolverCounterUnsat, 75 mSDtfsCounter, 585 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 39 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1557occurred in iteration=8, InterpolantAutomatonStates: 44, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 524 NumberOfCodeBlocks, 514 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 515 ConstructedInterpolants, 0 QuantifiedInterpolants, 951 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 14 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2025-01-09 21:22:16,407 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE