./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-data-race.prp --file ../../../trunk/examples/svcomp/goblint-regression/13-privatized_27-multiple-protecting2_true.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version da043454 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/goblint-regression/13-privatized_27-multiple-protecting2_true.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash b467a32b0eca9139f7a8347695f46ec00315627748ff1a92daed133af33e0293 --- Real Ultimate output --- This is Ultimate 0.3.0-wip.fs.system-includes-da04345-m [2025-04-29 11:10:04,226 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-04-29 11:10:04,263 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2025-04-29 11:10:04,267 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-04-29 11:10:04,267 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-04-29 11:10:04,282 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-04-29 11:10:04,284 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-04-29 11:10:04,284 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-04-29 11:10:04,284 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-04-29 11:10:04,284 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-04-29 11:10:04,285 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-04-29 11:10:04,285 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-04-29 11:10:04,285 INFO L153 SettingsManager]: * Use SBE=true [2025-04-29 11:10:04,285 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-04-29 11:10:04,285 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-04-29 11:10:04,286 INFO L153 SettingsManager]: * sizeof long=4 [2025-04-29 11:10:04,286 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-04-29 11:10:04,287 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-04-29 11:10:04,287 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-04-29 11:10:04,287 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-04-29 11:10:04,287 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-04-29 11:10:04,287 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-04-29 11:10:04,287 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2025-04-29 11:10:04,287 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-04-29 11:10:04,287 INFO L153 SettingsManager]: * sizeof long double=12 [2025-04-29 11:10:04,287 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-04-29 11:10:04,287 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-04-29 11:10:04,287 INFO L153 SettingsManager]: * Use constant arrays=true [2025-04-29 11:10:04,287 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-04-29 11:10:04,288 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-29 11:10:04,288 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-04-29 11:10:04,288 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-29 11:10:04,288 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-04-29 11:10:04,288 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-29 11:10:04,288 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-04-29 11:10:04,288 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-29 11:10:04,288 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-04-29 11:10:04,288 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-04-29 11:10:04,288 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-04-29 11:10:04,288 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-04-29 11:10:04,288 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-04-29 11:10:04,288 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-04-29 11:10:04,288 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-04-29 11:10:04,288 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-04-29 11:10:04,288 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-04-29 11:10:04,288 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b467a32b0eca9139f7a8347695f46ec00315627748ff1a92daed133af33e0293 [2025-04-29 11:10:04,500 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-04-29 11:10:04,508 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-04-29 11:10:04,509 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-04-29 11:10:04,510 INFO L270 PluginConnector]: Initializing CDTParser... [2025-04-29 11:10:04,510 INFO L274 PluginConnector]: CDTParser initialized [2025-04-29 11:10:04,511 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/13-privatized_27-multiple-protecting2_true.c [2025-04-29 11:10:05,857 INFO L538 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8c8f23cfd/a8d19bf1ca9241988308afe5cd213c7c/FLAG1acd103c1 [2025-04-29 11:10:06,061 INFO L389 CDTParser]: Found 1 translation units. [2025-04-29 11:10:06,062 INFO L178 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_27-multiple-protecting2_true.c [2025-04-29 11:10:06,065 WARN L117 ultiparseSymbolTable]: System include assert.h could not be resolved by CDT -- only built-in system includes are available. [2025-04-29 11:10:06,065 WARN L117 ultiparseSymbolTable]: System include pthread.h could not be resolved by CDT -- only built-in system includes are available. [2025-04-29 11:10:06,071 INFO L432 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8c8f23cfd/a8d19bf1ca9241988308afe5cd213c7c/FLAG1acd103c1 [2025-04-29 11:10:06,907 INFO L440 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8c8f23cfd/a8d19bf1ca9241988308afe5cd213c7c [2025-04-29 11:10:06,910 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-04-29 11:10:06,910 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-04-29 11:10:06,911 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-04-29 11:10:06,911 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-04-29 11:10:06,917 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-04-29 11:10:06,918 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.04 11:10:06" (1/1) ... [2025-04-29 11:10:06,919 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@10bbc984 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:10:06, skipping insertion in model container [2025-04-29 11:10:06,919 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.04 11:10:06" (1/1) ... [2025-04-29 11:10:06,930 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-04-29 11:10:07,060 INFO L211 PostProcessor]: Analyzing one entry point: main [2025-04-29 11:10:07,066 INFO L200 MainTranslator]: Completed pre-run [2025-04-29 11:10:07,090 INFO L211 PostProcessor]: Analyzing one entry point: main [2025-04-29 11:10:07,103 INFO L204 MainTranslator]: Completed translation [2025-04-29 11:10:07,104 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:10:07 WrapperNode [2025-04-29 11:10:07,104 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-04-29 11:10:07,106 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-04-29 11:10:07,106 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-04-29 11:10:07,106 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-04-29 11:10:07,110 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:10:07" (1/1) ... [2025-04-29 11:10:07,115 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:10:07" (1/1) ... [2025-04-29 11:10:07,131 INFO L138 Inliner]: procedures = 15, calls = 39, calls flagged for inlining = 7, calls inlined = 10, statements flattened = 105 [2025-04-29 11:10:07,132 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-04-29 11:10:07,133 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-04-29 11:10:07,133 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-04-29 11:10:07,134 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-04-29 11:10:07,137 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:10:07" (1/1) ... [2025-04-29 11:10:07,138 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:10:07" (1/1) ... [2025-04-29 11:10:07,140 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:10:07" (1/1) ... [2025-04-29 11:10:07,142 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:10:07" (1/1) ... [2025-04-29 11:10:07,145 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:10:07" (1/1) ... [2025-04-29 11:10:07,148 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:10:07" (1/1) ... [2025-04-29 11:10:07,150 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:10:07" (1/1) ... [2025-04-29 11:10:07,150 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:10:07" (1/1) ... [2025-04-29 11:10:07,151 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:10:07" (1/1) ... [2025-04-29 11:10:07,156 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-04-29 11:10:07,158 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-04-29 11:10:07,158 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-04-29 11:10:07,158 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-04-29 11:10:07,159 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:10:07" (1/1) ... [2025-04-29 11:10:07,163 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-29 11:10:07,170 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-04-29 11:10:07,180 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-04-29 11:10:07,184 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-04-29 11:10:07,197 INFO L130 BoogieDeclarations]: Found specification of procedure t2_fun [2025-04-29 11:10:07,197 INFO L138 BoogieDeclarations]: Found implementation of procedure t2_fun [2025-04-29 11:10:07,197 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-04-29 11:10:07,197 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2025-04-29 11:10:07,197 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2025-04-29 11:10:07,197 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2025-04-29 11:10:07,197 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-04-29 11:10:07,197 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-04-29 11:10:07,197 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2025-04-29 11:10:07,197 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2025-04-29 11:10:07,198 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-04-29 11:10:07,263 INFO L234 CfgBuilder]: Building ICFG [2025-04-29 11:10:07,265 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-04-29 11:10:07,533 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-04-29 11:10:07,533 INFO L283 CfgBuilder]: Performing block encoding [2025-04-29 11:10:07,580 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-04-29 11:10:07,580 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2025-04-29 11:10:07,581 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.04 11:10:07 BoogieIcfgContainer [2025-04-29 11:10:07,581 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-04-29 11:10:07,582 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-04-29 11:10:07,582 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-04-29 11:10:07,585 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-04-29 11:10:07,585 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.04 11:10:06" (1/3) ... [2025-04-29 11:10:07,586 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7bf1a39b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.04 11:10:07, skipping insertion in model container [2025-04-29 11:10:07,586 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:10:07" (2/3) ... [2025-04-29 11:10:07,586 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7bf1a39b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.04 11:10:07, skipping insertion in model container [2025-04-29 11:10:07,586 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.04 11:10:07" (3/3) ... [2025-04-29 11:10:07,587 INFO L128 eAbstractionObserver]: Analyzing ICFG 13-privatized_27-multiple-protecting2_true.c [2025-04-29 11:10:07,597 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-04-29 11:10:07,599 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 13-privatized_27-multiple-protecting2_true.c that has 3 procedures, 180 locations, 181 edges, 1 initial locations, 0 loop locations, and 12 error locations. [2025-04-29 11:10:07,600 INFO L490 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-04-29 11:10:07,670 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2025-04-29 11:10:07,702 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 186 places, 183 transitions, 380 flow [2025-04-29 11:10:07,761 INFO L116 PetriNetUnfolderBase]: 4/181 cut-off events. [2025-04-29 11:10:07,764 INFO L117 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2025-04-29 11:10:07,767 INFO L83 FinitePrefix]: Finished finitePrefix Result has 190 conditions, 181 events. 4/181 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 277 event pairs, 0 based on Foata normal form. 0/165 useless extension candidates. Maximal degree in co-relation 156. Up to 2 conditions per place. [2025-04-29 11:10:07,767 INFO L82 GeneralOperation]: Start removeDead. Operand has 186 places, 183 transitions, 380 flow [2025-04-29 11:10:07,770 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 179 places, 176 transitions, 361 flow [2025-04-29 11:10:07,776 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-04-29 11:10:07,783 INFO L340 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@5054e0c2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-04-29 11:10:07,784 INFO L341 AbstractCegarLoop]: Starting to check reachability of 22 error locations. [2025-04-29 11:10:07,795 INFO L177 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-04-29 11:10:07,796 INFO L116 PetriNetUnfolderBase]: 0/33 cut-off events. [2025-04-29 11:10:07,796 INFO L117 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-04-29 11:10:07,796 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-29 11:10:07,796 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] [2025-04-29 11:10:07,796 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE, t2_funErr2ASSERT_VIOLATIONDATA_RACE, t2_funErr3ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2025-04-29 11:10:07,803 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-29 11:10:07,803 INFO L85 PathProgramCache]: Analyzing trace with hash -665626112, now seen corresponding path program 1 times [2025-04-29 11:10:07,809 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-29 11:10:07,809 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [902061803] [2025-04-29 11:10:07,809 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-29 11:10:07,809 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-29 11:10:07,865 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 28 statements into 1 equivalence classes. [2025-04-29 11:10:07,879 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 28 of 28 statements. [2025-04-29 11:10:07,880 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-29 11:10:07,880 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-29 11:10:07,981 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-29 11:10:07,982 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-29 11:10:07,982 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [902061803] [2025-04-29 11:10:07,982 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [902061803] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-29 11:10:07,982 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-29 11:10:07,983 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-04-29 11:10:07,984 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [219727314] [2025-04-29 11:10:07,984 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-29 11:10:07,988 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-04-29 11:10:07,990 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-29 11:10:08,005 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-04-29 11:10:08,006 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-04-29 11:10:08,041 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 130 out of 183 [2025-04-29 11:10:08,044 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 179 places, 176 transitions, 361 flow. Second operand has 3 states, 3 states have (on average 131.66666666666666) internal successors, (395), 3 states have internal predecessors, (395), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-29 11:10:08,044 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-29 11:10:08,044 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 130 of 183 [2025-04-29 11:10:08,048 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-29 11:10:09,387 INFO L116 PetriNetUnfolderBase]: 4355/13895 cut-off events. [2025-04-29 11:10:09,388 INFO L117 PetriNetUnfolderBase]: For 56/56 co-relation queries the response was YES. [2025-04-29 11:10:09,407 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20892 conditions, 13895 events. 4355/13895 cut-off events. For 56/56 co-relation queries the response was YES. Maximal size of possible extension queue 322. Compared 148477 event pairs, 1372 based on Foata normal form. 489/13231 useless extension candidates. Maximal degree in co-relation 20798. Up to 4457 conditions per place. [2025-04-29 11:10:09,449 INFO L140 encePairwiseOnDemand]: 164/183 looper letters, 66 selfloop transitions, 10 changer transitions 0/200 dead transitions. [2025-04-29 11:10:09,449 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 175 places, 200 transitions, 567 flow [2025-04-29 11:10:09,450 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-29 11:10:09,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-04-29 11:10:09,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 479 transitions. [2025-04-29 11:10:09,460 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.8724954462659381 [2025-04-29 11:10:09,462 INFO L175 Difference]: Start difference. First operand has 179 places, 176 transitions, 361 flow. Second operand 3 states and 479 transitions. [2025-04-29 11:10:09,462 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 175 places, 200 transitions, 567 flow [2025-04-29 11:10:09,467 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 172 places, 200 transitions, 559 flow, removed 0 selfloop flow, removed 3 redundant places. [2025-04-29 11:10:09,470 INFO L231 Difference]: Finished difference. Result has 174 places, 174 transitions, 414 flow [2025-04-29 11:10:09,472 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=183, PETRI_DIFFERENCE_MINUEND_FLOW=336, PETRI_DIFFERENCE_MINUEND_PLACES=170, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=166, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=156, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=414, PETRI_PLACES=174, PETRI_TRANSITIONS=174} [2025-04-29 11:10:09,474 INFO L279 CegarLoopForPetriNet]: 179 programPoint places, -5 predicate places. [2025-04-29 11:10:09,474 INFO L485 AbstractCegarLoop]: Abstraction has has 174 places, 174 transitions, 414 flow [2025-04-29 11:10:09,474 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 131.66666666666666) internal successors, (395), 3 states have internal predecessors, (395), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-29 11:10:09,474 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-29 11:10:09,475 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] [2025-04-29 11:10:09,475 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-04-29 11:10:09,475 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE, t2_funErr2ASSERT_VIOLATIONDATA_RACE, t2_funErr3ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2025-04-29 11:10:09,475 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-29 11:10:09,475 INFO L85 PathProgramCache]: Analyzing trace with hash 394348722, now seen corresponding path program 1 times [2025-04-29 11:10:09,475 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-29 11:10:09,475 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [840240105] [2025-04-29 11:10:09,475 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-29 11:10:09,476 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-29 11:10:09,482 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 33 statements into 1 equivalence classes. [2025-04-29 11:10:09,488 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 33 of 33 statements. [2025-04-29 11:10:09,488 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-29 11:10:09,489 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-29 11:10:09,514 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-29 11:10:09,515 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-29 11:10:09,515 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [840240105] [2025-04-29 11:10:09,515 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [840240105] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-29 11:10:09,515 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-29 11:10:09,515 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-04-29 11:10:09,515 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [948424534] [2025-04-29 11:10:09,515 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-29 11:10:09,516 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-04-29 11:10:09,516 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-29 11:10:09,516 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-04-29 11:10:09,517 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-04-29 11:10:09,550 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 136 out of 183 [2025-04-29 11:10:09,551 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 174 places, 174 transitions, 414 flow. Second operand has 3 states, 3 states have (on average 138.33333333333334) internal successors, (415), 3 states have internal predecessors, (415), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-29 11:10:09,551 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-29 11:10:09,551 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 136 of 183 [2025-04-29 11:10:09,551 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-29 11:10:10,696 INFO L116 PetriNetUnfolderBase]: 4773/14349 cut-off events. [2025-04-29 11:10:10,697 INFO L117 PetriNetUnfolderBase]: For 2294/2322 co-relation queries the response was YES. [2025-04-29 11:10:10,727 INFO L83 FinitePrefix]: Finished finitePrefix Result has 24031 conditions, 14349 events. 4773/14349 cut-off events. For 2294/2322 co-relation queries the response was YES. Maximal size of possible extension queue 354. Compared 153477 event pairs, 3453 based on Foata normal form. 28/12976 useless extension candidates. Maximal degree in co-relation 23889. Up to 6392 conditions per place. [2025-04-29 11:10:10,780 INFO L140 encePairwiseOnDemand]: 176/183 looper letters, 61 selfloop transitions, 8 changer transitions 0/200 dead transitions. [2025-04-29 11:10:10,780 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 176 places, 200 transitions, 622 flow [2025-04-29 11:10:10,781 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-29 11:10:10,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-04-29 11:10:10,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 471 transitions. [2025-04-29 11:10:10,784 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.8579234972677595 [2025-04-29 11:10:10,784 INFO L175 Difference]: Start difference. First operand has 174 places, 174 transitions, 414 flow. Second operand 3 states and 471 transitions. [2025-04-29 11:10:10,784 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 176 places, 200 transitions, 622 flow [2025-04-29 11:10:10,793 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 174 places, 200 transitions, 596 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-04-29 11:10:10,795 INFO L231 Difference]: Finished difference. Result has 176 places, 181 transitions, 466 flow [2025-04-29 11:10:10,796 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=183, PETRI_DIFFERENCE_MINUEND_FLOW=394, PETRI_DIFFERENCE_MINUEND_PLACES=172, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=174, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=166, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=466, PETRI_PLACES=176, PETRI_TRANSITIONS=181} [2025-04-29 11:10:10,796 INFO L279 CegarLoopForPetriNet]: 179 programPoint places, -3 predicate places. [2025-04-29 11:10:10,796 INFO L485 AbstractCegarLoop]: Abstraction has has 176 places, 181 transitions, 466 flow [2025-04-29 11:10:10,797 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 138.33333333333334) internal successors, (415), 3 states have internal predecessors, (415), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-29 11:10:10,797 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-29 11:10:10,797 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] [2025-04-29 11:10:10,797 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-04-29 11:10:10,797 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting t2_funErr0ASSERT_VIOLATIONDATA_RACE === [t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE, t2_funErr2ASSERT_VIOLATIONDATA_RACE, t2_funErr3ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2025-04-29 11:10:10,798 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-29 11:10:10,798 INFO L85 PathProgramCache]: Analyzing trace with hash -1677820112, now seen corresponding path program 1 times [2025-04-29 11:10:10,798 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-29 11:10:10,798 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1280825479] [2025-04-29 11:10:10,798 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-29 11:10:10,798 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-29 11:10:10,806 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 34 statements into 1 equivalence classes. [2025-04-29 11:10:10,815 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 34 of 34 statements. [2025-04-29 11:10:10,818 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-29 11:10:10,818 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-29 11:10:10,856 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-29 11:10:10,857 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-29 11:10:10,857 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1280825479] [2025-04-29 11:10:10,857 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1280825479] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-29 11:10:10,857 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-29 11:10:10,857 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-04-29 11:10:10,857 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1808865215] [2025-04-29 11:10:10,857 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-29 11:10:10,858 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-04-29 11:10:10,858 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-29 11:10:10,859 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-04-29 11:10:10,859 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-04-29 11:10:10,872 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 136 out of 183 [2025-04-29 11:10:10,873 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 176 places, 181 transitions, 466 flow. Second operand has 3 states, 3 states have (on average 138.0) internal successors, (414), 3 states have internal predecessors, (414), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-29 11:10:10,873 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-29 11:10:10,873 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 136 of 183 [2025-04-29 11:10:10,874 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-29 11:10:12,290 INFO L116 PetriNetUnfolderBase]: 6970/22498 cut-off events. [2025-04-29 11:10:12,290 INFO L117 PetriNetUnfolderBase]: For 1055/1139 co-relation queries the response was YES. [2025-04-29 11:10:12,332 INFO L83 FinitePrefix]: Finished finitePrefix Result has 35732 conditions, 22498 events. 6970/22498 cut-off events. For 1055/1139 co-relation queries the response was YES. Maximal size of possible extension queue 559. Compared 263962 event pairs, 2554 based on Foata normal form. 21/20787 useless extension candidates. Maximal degree in co-relation 35623. Up to 5739 conditions per place. [2025-04-29 11:10:12,392 INFO L140 encePairwiseOnDemand]: 174/183 looper letters, 59 selfloop transitions, 6 changer transitions 0/208 dead transitions. [2025-04-29 11:10:12,393 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 176 places, 208 transitions, 651 flow [2025-04-29 11:10:12,394 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-29 11:10:12,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-04-29 11:10:12,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 476 transitions. [2025-04-29 11:10:12,395 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.8670309653916212 [2025-04-29 11:10:12,395 INFO L175 Difference]: Start difference. First operand has 176 places, 181 transitions, 466 flow. Second operand 3 states and 476 transitions. [2025-04-29 11:10:12,395 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 176 places, 208 transitions, 651 flow [2025-04-29 11:10:12,401 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 174 places, 208 transitions, 635 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-04-29 11:10:12,403 INFO L231 Difference]: Finished difference. Result has 176 places, 183 transitions, 488 flow [2025-04-29 11:10:12,403 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=183, PETRI_DIFFERENCE_MINUEND_FLOW=446, PETRI_DIFFERENCE_MINUEND_PLACES=172, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=179, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=173, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=488, PETRI_PLACES=176, PETRI_TRANSITIONS=183} [2025-04-29 11:10:12,403 INFO L279 CegarLoopForPetriNet]: 179 programPoint places, -3 predicate places. [2025-04-29 11:10:12,404 INFO L485 AbstractCegarLoop]: Abstraction has has 176 places, 183 transitions, 488 flow [2025-04-29 11:10:12,404 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 138.0) internal successors, (414), 3 states have internal predecessors, (414), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-29 11:10:12,404 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-29 11:10:12,405 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] [2025-04-29 11:10:12,405 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-04-29 11:10:12,405 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting t2_funErr1ASSERT_VIOLATIONDATA_RACE === [t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE, t2_funErr2ASSERT_VIOLATIONDATA_RACE, t2_funErr3ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2025-04-29 11:10:12,405 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-29 11:10:12,405 INFO L85 PathProgramCache]: Analyzing trace with hash 1507007133, now seen corresponding path program 1 times [2025-04-29 11:10:12,405 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-29 11:10:12,405 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1374746973] [2025-04-29 11:10:12,405 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-29 11:10:12,405 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-29 11:10:12,414 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 39 statements into 1 equivalence classes. [2025-04-29 11:10:12,420 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 39 of 39 statements. [2025-04-29 11:10:12,423 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-29 11:10:12,423 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-29 11:10:12,458 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-29 11:10:12,458 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-29 11:10:12,458 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1374746973] [2025-04-29 11:10:12,458 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1374746973] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-29 11:10:12,459 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-29 11:10:12,459 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-04-29 11:10:12,459 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [963129678] [2025-04-29 11:10:12,459 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-29 11:10:12,459 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-04-29 11:10:12,459 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-29 11:10:12,459 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-04-29 11:10:12,459 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-04-29 11:10:12,476 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 138 out of 183 [2025-04-29 11:10:12,477 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 176 places, 183 transitions, 488 flow. Second operand has 3 states, 3 states have (on average 140.66666666666666) internal successors, (422), 3 states have internal predecessors, (422), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-29 11:10:12,477 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-29 11:10:12,477 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 138 of 183 [2025-04-29 11:10:12,477 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-29 11:10:14,187 INFO L116 PetriNetUnfolderBase]: 7722/23477 cut-off events. [2025-04-29 11:10:14,188 INFO L117 PetriNetUnfolderBase]: For 3848/3954 co-relation queries the response was YES. [2025-04-29 11:10:14,231 INFO L83 FinitePrefix]: Finished finitePrefix Result has 40099 conditions, 23477 events. 7722/23477 cut-off events. For 3848/3954 co-relation queries the response was YES. Maximal size of possible extension queue 622. Compared 276486 event pairs, 5379 based on Foata normal form. 14/21395 useless extension candidates. Maximal degree in co-relation 39991. Up to 10216 conditions per place. [2025-04-29 11:10:14,285 INFO L140 encePairwiseOnDemand]: 178/183 looper letters, 57 selfloop transitions, 4 changer transitions 0/205 dead transitions. [2025-04-29 11:10:14,285 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 178 places, 205 transitions, 659 flow [2025-04-29 11:10:14,286 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-29 11:10:14,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-04-29 11:10:14,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 473 transitions. [2025-04-29 11:10:14,287 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.8615664845173042 [2025-04-29 11:10:14,287 INFO L175 Difference]: Start difference. First operand has 176 places, 183 transitions, 488 flow. Second operand 3 states and 473 transitions. [2025-04-29 11:10:14,287 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 178 places, 205 transitions, 659 flow [2025-04-29 11:10:14,292 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 176 places, 205 transitions, 645 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-04-29 11:10:14,294 INFO L231 Difference]: Finished difference. Result has 178 places, 186 transitions, 508 flow [2025-04-29 11:10:14,294 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=183, PETRI_DIFFERENCE_MINUEND_FLOW=476, PETRI_DIFFERENCE_MINUEND_PLACES=174, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=183, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=179, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=508, PETRI_PLACES=178, PETRI_TRANSITIONS=186} [2025-04-29 11:10:14,294 INFO L279 CegarLoopForPetriNet]: 179 programPoint places, -1 predicate places. [2025-04-29 11:10:14,294 INFO L485 AbstractCegarLoop]: Abstraction has has 178 places, 186 transitions, 508 flow [2025-04-29 11:10:14,295 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 140.66666666666666) internal successors, (422), 3 states have internal predecessors, (422), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-29 11:10:14,295 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-29 11:10:14,295 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] [2025-04-29 11:10:14,295 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-04-29 11:10:14,295 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE, t2_funErr2ASSERT_VIOLATIONDATA_RACE, t2_funErr3ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2025-04-29 11:10:14,295 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-29 11:10:14,295 INFO L85 PathProgramCache]: Analyzing trace with hash 1114704665, now seen corresponding path program 1 times [2025-04-29 11:10:14,295 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-29 11:10:14,296 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [67118554] [2025-04-29 11:10:14,296 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-29 11:10:14,296 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-29 11:10:14,302 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 46 statements into 1 equivalence classes. [2025-04-29 11:10:14,312 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 46 of 46 statements. [2025-04-29 11:10:14,313 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-29 11:10:14,313 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-29 11:10:14,487 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-29 11:10:14,488 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-29 11:10:14,488 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [67118554] [2025-04-29 11:10:14,488 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [67118554] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-29 11:10:14,488 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-29 11:10:14,488 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-04-29 11:10:14,488 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1729788502] [2025-04-29 11:10:14,488 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-29 11:10:14,488 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-04-29 11:10:14,489 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-29 11:10:14,489 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-04-29 11:10:14,490 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-04-29 11:10:14,498 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 145 out of 183 [2025-04-29 11:10:14,499 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 178 places, 186 transitions, 508 flow. Second operand has 5 states, 5 states have (on average 146.6) internal successors, (733), 5 states have internal predecessors, (733), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-29 11:10:14,500 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-29 11:10:14,500 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 145 of 183 [2025-04-29 11:10:14,500 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-29 11:10:15,204 INFO L116 PetriNetUnfolderBase]: 1980/10073 cut-off events. [2025-04-29 11:10:15,205 INFO L117 PetriNetUnfolderBase]: For 423/494 co-relation queries the response was YES. [2025-04-29 11:10:15,226 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15364 conditions, 10073 events. 1980/10073 cut-off events. For 423/494 co-relation queries the response was YES. Maximal size of possible extension queue 320. Compared 116166 event pairs, 607 based on Foata normal form. 109/9402 useless extension candidates. Maximal degree in co-relation 15253. Up to 1748 conditions per place. [2025-04-29 11:10:15,241 INFO L140 encePairwiseOnDemand]: 175/183 looper letters, 44 selfloop transitions, 8 changer transitions 0/209 dead transitions. [2025-04-29 11:10:15,242 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 182 places, 209 transitions, 660 flow [2025-04-29 11:10:15,242 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-29 11:10:15,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-04-29 11:10:15,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 779 transitions. [2025-04-29 11:10:15,243 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.8513661202185793 [2025-04-29 11:10:15,243 INFO L175 Difference]: Start difference. First operand has 178 places, 186 transitions, 508 flow. Second operand 5 states and 779 transitions. [2025-04-29 11:10:15,243 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 182 places, 209 transitions, 660 flow [2025-04-29 11:10:15,245 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 180 places, 209 transitions, 652 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-04-29 11:10:15,247 INFO L231 Difference]: Finished difference. Result has 181 places, 190 transitions, 538 flow [2025-04-29 11:10:15,247 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=183, PETRI_DIFFERENCE_MINUEND_FLOW=500, PETRI_DIFFERENCE_MINUEND_PLACES=176, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=186, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=178, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=538, PETRI_PLACES=181, PETRI_TRANSITIONS=190} [2025-04-29 11:10:15,247 INFO L279 CegarLoopForPetriNet]: 179 programPoint places, 2 predicate places. [2025-04-29 11:10:15,247 INFO L485 AbstractCegarLoop]: Abstraction has has 181 places, 190 transitions, 538 flow [2025-04-29 11:10:15,248 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 146.6) internal successors, (733), 5 states have internal predecessors, (733), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-29 11:10:15,248 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-29 11:10:15,248 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] [2025-04-29 11:10:15,248 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-04-29 11:10:15,248 INFO L403 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr3ASSERT_VIOLATIONDATA_RACE === [t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE, t2_funErr2ASSERT_VIOLATIONDATA_RACE, t2_funErr3ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2025-04-29 11:10:15,249 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-29 11:10:15,249 INFO L85 PathProgramCache]: Analyzing trace with hash 1239695402, now seen corresponding path program 1 times [2025-04-29 11:10:15,249 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-29 11:10:15,249 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [293600562] [2025-04-29 11:10:15,249 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-29 11:10:15,249 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-29 11:10:15,256 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 46 statements into 1 equivalence classes. [2025-04-29 11:10:15,261 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 46 of 46 statements. [2025-04-29 11:10:15,261 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-29 11:10:15,261 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-29 11:10:15,285 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-29 11:10:15,286 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-29 11:10:15,286 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [293600562] [2025-04-29 11:10:15,286 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [293600562] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-29 11:10:15,286 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-29 11:10:15,286 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-04-29 11:10:15,286 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2123682856] [2025-04-29 11:10:15,286 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-29 11:10:15,286 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-04-29 11:10:15,287 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-29 11:10:15,287 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-04-29 11:10:15,287 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-04-29 11:10:15,309 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 136 out of 183 [2025-04-29 11:10:15,310 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 181 places, 190 transitions, 538 flow. Second operand has 3 states, 3 states have (on average 139.66666666666666) internal successors, (419), 3 states have internal predecessors, (419), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-29 11:10:15,310 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-29 11:10:15,310 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 136 of 183 [2025-04-29 11:10:15,310 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-29 11:10:16,192 INFO L116 PetriNetUnfolderBase]: 3946/13752 cut-off events. [2025-04-29 11:10:16,192 INFO L117 PetriNetUnfolderBase]: For 3494/3504 co-relation queries the response was YES. [2025-04-29 11:10:16,216 INFO L83 FinitePrefix]: Finished finitePrefix Result has 25877 conditions, 13752 events. 3946/13752 cut-off events. For 3494/3504 co-relation queries the response was YES. Maximal size of possible extension queue 444. Compared 154690 event pairs, 2498 based on Foata normal form. 2/12768 useless extension candidates. Maximal degree in co-relation 25728. Up to 6071 conditions per place. [2025-04-29 11:10:16,238 INFO L140 encePairwiseOnDemand]: 176/183 looper letters, 70 selfloop transitions, 8 changer transitions 2/218 dead transitions. [2025-04-29 11:10:16,238 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 183 places, 218 transitions, 792 flow [2025-04-29 11:10:16,241 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-29 11:10:16,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-04-29 11:10:16,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 471 transitions. [2025-04-29 11:10:16,243 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.8579234972677595 [2025-04-29 11:10:16,243 INFO L175 Difference]: Start difference. First operand has 181 places, 190 transitions, 538 flow. Second operand 3 states and 471 transitions. [2025-04-29 11:10:16,243 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 183 places, 218 transitions, 792 flow [2025-04-29 11:10:16,245 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 181 places, 218 transitions, 789 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-04-29 11:10:16,246 INFO L231 Difference]: Finished difference. Result has 183 places, 197 transitions, 617 flow [2025-04-29 11:10:16,247 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=183, PETRI_DIFFERENCE_MINUEND_FLOW=535, PETRI_DIFFERENCE_MINUEND_PLACES=179, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=190, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=182, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=617, PETRI_PLACES=183, PETRI_TRANSITIONS=197} [2025-04-29 11:10:16,247 INFO L279 CegarLoopForPetriNet]: 179 programPoint places, 4 predicate places. [2025-04-29 11:10:16,247 INFO L485 AbstractCegarLoop]: Abstraction has has 183 places, 197 transitions, 617 flow [2025-04-29 11:10:16,247 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 139.66666666666666) internal successors, (419), 3 states have internal predecessors, (419), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-29 11:10:16,247 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-29 11:10:16,248 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] [2025-04-29 11:10:16,248 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-04-29 11:10:16,248 INFO L403 AbstractCegarLoop]: === Iteration 7 === Targeting t2_funErr3ASSERT_VIOLATIONDATA_RACE === [t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE, t2_funErr2ASSERT_VIOLATIONDATA_RACE, t2_funErr3ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2025-04-29 11:10:16,248 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-29 11:10:16,248 INFO L85 PathProgramCache]: Analyzing trace with hash -1171656774, now seen corresponding path program 1 times [2025-04-29 11:10:16,248 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-29 11:10:16,248 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [441833057] [2025-04-29 11:10:16,248 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-29 11:10:16,249 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-29 11:10:16,255 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 52 statements into 1 equivalence classes. [2025-04-29 11:10:16,260 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 52 of 52 statements. [2025-04-29 11:10:16,260 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-29 11:10:16,260 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-29 11:10:16,281 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-29 11:10:16,282 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-29 11:10:16,282 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [441833057] [2025-04-29 11:10:16,282 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [441833057] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-29 11:10:16,282 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-29 11:10:16,282 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-04-29 11:10:16,282 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [379633145] [2025-04-29 11:10:16,282 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-29 11:10:16,282 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-04-29 11:10:16,283 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-29 11:10:16,283 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-04-29 11:10:16,283 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-04-29 11:10:16,300 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 138 out of 183 [2025-04-29 11:10:16,301 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 183 places, 197 transitions, 617 flow. Second operand has 3 states, 3 states have (on average 142.0) internal successors, (426), 3 states have internal predecessors, (426), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-29 11:10:16,301 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-29 11:10:16,301 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 138 of 183 [2025-04-29 11:10:16,301 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-29 11:10:17,591 INFO L116 PetriNetUnfolderBase]: 3679/14393 cut-off events. [2025-04-29 11:10:17,591 INFO L117 PetriNetUnfolderBase]: For 3671/3793 co-relation queries the response was YES. [2025-04-29 11:10:17,634 INFO L83 FinitePrefix]: Finished finitePrefix Result has 26649 conditions, 14393 events. 3679/14393 cut-off events. For 3671/3793 co-relation queries the response was YES. Maximal size of possible extension queue 427. Compared 166699 event pairs, 2162 based on Foata normal form. 4/13149 useless extension candidates. Maximal degree in co-relation 26530. Up to 5227 conditions per place. [2025-04-29 11:10:17,660 INFO L140 encePairwiseOnDemand]: 178/183 looper letters, 61 selfloop transitions, 4 changer transitions 3/221 dead transitions. [2025-04-29 11:10:17,661 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 185 places, 221 transitions, 825 flow [2025-04-29 11:10:17,662 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-29 11:10:17,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-04-29 11:10:17,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 473 transitions. [2025-04-29 11:10:17,663 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.8615664845173042 [2025-04-29 11:10:17,663 INFO L175 Difference]: Start difference. First operand has 183 places, 197 transitions, 617 flow. Second operand 3 states and 473 transitions. [2025-04-29 11:10:17,663 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 185 places, 221 transitions, 825 flow [2025-04-29 11:10:17,675 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 183 places, 221 transitions, 799 flow, removed 5 selfloop flow, removed 2 redundant places. [2025-04-29 11:10:17,678 INFO L231 Difference]: Finished difference. Result has 185 places, 200 transitions, 625 flow [2025-04-29 11:10:17,678 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=183, PETRI_DIFFERENCE_MINUEND_FLOW=591, PETRI_DIFFERENCE_MINUEND_PLACES=181, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=197, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=193, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=625, PETRI_PLACES=185, PETRI_TRANSITIONS=200} [2025-04-29 11:10:17,678 INFO L279 CegarLoopForPetriNet]: 179 programPoint places, 6 predicate places. [2025-04-29 11:10:17,679 INFO L485 AbstractCegarLoop]: Abstraction has has 185 places, 200 transitions, 625 flow [2025-04-29 11:10:17,679 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 142.0) internal successors, (426), 3 states have internal predecessors, (426), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-29 11:10:17,679 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-29 11:10:17,679 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] [2025-04-29 11:10:17,679 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-04-29 11:10:17,679 INFO L403 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE, t2_funErr2ASSERT_VIOLATIONDATA_RACE, t2_funErr3ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2025-04-29 11:10:17,680 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-29 11:10:17,680 INFO L85 PathProgramCache]: Analyzing trace with hash -512797526, now seen corresponding path program 1 times [2025-04-29 11:10:17,680 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-29 11:10:17,680 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1971039172] [2025-04-29 11:10:17,680 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-29 11:10:17,680 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-29 11:10:17,688 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 72 statements into 1 equivalence classes. [2025-04-29 11:10:17,698 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 72 of 72 statements. [2025-04-29 11:10:17,700 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-29 11:10:17,700 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-29 11:10:17,866 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-29 11:10:17,866 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-29 11:10:17,866 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1971039172] [2025-04-29 11:10:17,866 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1971039172] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-29 11:10:17,866 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-29 11:10:17,866 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-04-29 11:10:17,866 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [719738225] [2025-04-29 11:10:17,866 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-29 11:10:17,867 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-04-29 11:10:17,867 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-29 11:10:17,867 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-04-29 11:10:17,867 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-04-29 11:10:17,877 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 145 out of 183 [2025-04-29 11:10:17,878 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 185 places, 200 transitions, 625 flow. Second operand has 5 states, 5 states have (on average 147.6) internal successors, (738), 5 states have internal predecessors, (738), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-29 11:10:17,878 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-29 11:10:17,879 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 145 of 183 [2025-04-29 11:10:17,879 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-29 11:10:18,618 INFO L116 PetriNetUnfolderBase]: 1363/7611 cut-off events. [2025-04-29 11:10:18,619 INFO L117 PetriNetUnfolderBase]: For 1583/1620 co-relation queries the response was YES. [2025-04-29 11:10:18,637 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13204 conditions, 7611 events. 1363/7611 cut-off events. For 1583/1620 co-relation queries the response was YES. Maximal size of possible extension queue 237. Compared 83501 event pairs, 331 based on Foata normal form. 22/7217 useless extension candidates. Maximal degree in co-relation 13084. Up to 1357 conditions per place. [2025-04-29 11:10:18,644 INFO L140 encePairwiseOnDemand]: 175/183 looper letters, 40 selfloop transitions, 10 changer transitions 13/226 dead transitions. [2025-04-29 11:10:18,644 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 189 places, 226 transitions, 819 flow [2025-04-29 11:10:18,645 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-29 11:10:18,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-04-29 11:10:18,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 779 transitions. [2025-04-29 11:10:18,646 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.8513661202185793 [2025-04-29 11:10:18,646 INFO L175 Difference]: Start difference. First operand has 185 places, 200 transitions, 625 flow. Second operand 5 states and 779 transitions. [2025-04-29 11:10:18,646 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 189 places, 226 transitions, 819 flow [2025-04-29 11:10:18,654 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 187 places, 226 transitions, 809 flow, removed 1 selfloop flow, removed 2 redundant places. [2025-04-29 11:10:18,656 INFO L231 Difference]: Finished difference. Result has 188 places, 199 transitions, 651 flow [2025-04-29 11:10:18,656 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=183, PETRI_DIFFERENCE_MINUEND_FLOW=615, PETRI_DIFFERENCE_MINUEND_PLACES=183, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=200, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=190, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=651, PETRI_PLACES=188, PETRI_TRANSITIONS=199} [2025-04-29 11:10:18,656 INFO L279 CegarLoopForPetriNet]: 179 programPoint places, 9 predicate places. [2025-04-29 11:10:18,656 INFO L485 AbstractCegarLoop]: Abstraction has has 188 places, 199 transitions, 651 flow [2025-04-29 11:10:18,657 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 147.6) internal successors, (738), 5 states have internal predecessors, (738), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-29 11:10:18,657 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-29 11:10:18,657 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] [2025-04-29 11:10:18,657 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-04-29 11:10:18,657 INFO L403 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE, t2_funErr2ASSERT_VIOLATIONDATA_RACE, t2_funErr3ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2025-04-29 11:10:18,658 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-29 11:10:18,658 INFO L85 PathProgramCache]: Analyzing trace with hash -1440211828, now seen corresponding path program 1 times [2025-04-29 11:10:18,658 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-29 11:10:18,658 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1313309469] [2025-04-29 11:10:18,658 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-29 11:10:18,658 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-29 11:10:18,669 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 76 statements into 1 equivalence classes. [2025-04-29 11:10:18,678 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 76 of 76 statements. [2025-04-29 11:10:18,679 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-29 11:10:18,679 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-29 11:10:18,810 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-29 11:10:18,811 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-29 11:10:18,812 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1313309469] [2025-04-29 11:10:18,812 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1313309469] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-29 11:10:18,812 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-29 11:10:18,812 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-04-29 11:10:18,812 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1364897202] [2025-04-29 11:10:18,812 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-29 11:10:18,812 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-04-29 11:10:18,812 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-29 11:10:18,813 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-04-29 11:10:18,813 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-04-29 11:10:18,823 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 145 out of 183 [2025-04-29 11:10:18,824 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 188 places, 199 transitions, 651 flow. Second operand has 5 states, 5 states have (on average 147.8) internal successors, (739), 5 states have internal predecessors, (739), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-29 11:10:18,824 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-29 11:10:18,824 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 145 of 183 [2025-04-29 11:10:18,824 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-29 11:10:19,237 INFO L116 PetriNetUnfolderBase]: 557/5351 cut-off events. [2025-04-29 11:10:19,237 INFO L117 PetriNetUnfolderBase]: For 1813/1822 co-relation queries the response was YES. [2025-04-29 11:10:19,245 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9517 conditions, 5351 events. 557/5351 cut-off events. For 1813/1822 co-relation queries the response was YES. Maximal size of possible extension queue 131. Compared 54120 event pairs, 210 based on Foata normal form. 164/5369 useless extension candidates. Maximal degree in co-relation 5891. Up to 896 conditions per place. [2025-04-29 11:10:19,248 INFO L140 encePairwiseOnDemand]: 163/183 looper letters, 13 selfloop transitions, 19 changer transitions 32/201 dead transitions. [2025-04-29 11:10:19,248 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 187 places, 201 transitions, 777 flow [2025-04-29 11:10:19,248 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-29 11:10:19,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-04-29 11:10:19,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 780 transitions. [2025-04-29 11:10:19,249 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.8524590163934426 [2025-04-29 11:10:19,250 INFO L175 Difference]: Start difference. First operand has 188 places, 199 transitions, 651 flow. Second operand 5 states and 780 transitions. [2025-04-29 11:10:19,250 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 187 places, 201 transitions, 777 flow [2025-04-29 11:10:19,254 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 181 places, 201 transitions, 736 flow, removed 15 selfloop flow, removed 6 redundant places. [2025-04-29 11:10:19,255 INFO L231 Difference]: Finished difference. Result has 182 places, 166 transitions, 495 flow [2025-04-29 11:10:19,256 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=183, PETRI_DIFFERENCE_MINUEND_FLOW=502, PETRI_DIFFERENCE_MINUEND_PLACES=177, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=177, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=158, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=495, PETRI_PLACES=182, PETRI_TRANSITIONS=166} [2025-04-29 11:10:19,256 INFO L279 CegarLoopForPetriNet]: 179 programPoint places, 3 predicate places. [2025-04-29 11:10:19,256 INFO L485 AbstractCegarLoop]: Abstraction has has 182 places, 166 transitions, 495 flow [2025-04-29 11:10:19,257 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 147.8) internal successors, (739), 5 states have internal predecessors, (739), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-29 11:10:19,257 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-29 11:10:19,257 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-29 11:10:19,257 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-04-29 11:10:19,257 INFO L403 AbstractCegarLoop]: === Iteration 10 === Targeting t2_funErr1ASSERT_VIOLATIONDATA_RACE === [t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE, t2_funErr2ASSERT_VIOLATIONDATA_RACE, t2_funErr3ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2025-04-29 11:10:19,257 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-29 11:10:19,257 INFO L85 PathProgramCache]: Analyzing trace with hash 1611169638, now seen corresponding path program 1 times [2025-04-29 11:10:19,257 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-29 11:10:19,257 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [947971822] [2025-04-29 11:10:19,257 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-29 11:10:19,258 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-29 11:10:19,266 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 102 statements into 1 equivalence classes. [2025-04-29 11:10:19,280 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 102 of 102 statements. [2025-04-29 11:10:19,280 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-29 11:10:19,280 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-29 11:10:19,419 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-29 11:10:19,419 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-29 11:10:19,419 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [947971822] [2025-04-29 11:10:19,419 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [947971822] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-29 11:10:19,419 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-29 11:10:19,419 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-04-29 11:10:19,419 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1460157407] [2025-04-29 11:10:19,420 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-29 11:10:19,421 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-04-29 11:10:19,421 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-29 11:10:19,422 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-04-29 11:10:19,422 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2025-04-29 11:10:19,431 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 145 out of 183 [2025-04-29 11:10:19,432 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 182 places, 166 transitions, 495 flow. Second operand has 6 states, 6 states have (on average 148.16666666666666) internal successors, (889), 6 states have internal predecessors, (889), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-29 11:10:19,432 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-29 11:10:19,432 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 145 of 183 [2025-04-29 11:10:19,432 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-29 11:10:19,552 INFO L116 PetriNetUnfolderBase]: 84/1171 cut-off events. [2025-04-29 11:10:19,552 INFO L117 PetriNetUnfolderBase]: For 628/635 co-relation queries the response was YES. [2025-04-29 11:10:19,554 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2132 conditions, 1171 events. 84/1171 cut-off events. For 628/635 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 6806 event pairs, 46 based on Foata normal form. 2/1139 useless extension candidates. Maximal degree in co-relation 2020. Up to 156 conditions per place. [2025-04-29 11:10:19,555 INFO L140 encePairwiseOnDemand]: 163/183 looper letters, 0 selfloop transitions, 0 changer transitions 167/167 dead transitions. [2025-04-29 11:10:19,555 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 182 places, 167 transitions, 590 flow [2025-04-29 11:10:19,555 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-29 11:10:19,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-04-29 11:10:19,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 765 transitions. [2025-04-29 11:10:19,557 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.8360655737704918 [2025-04-29 11:10:19,557 INFO L175 Difference]: Start difference. First operand has 182 places, 166 transitions, 495 flow. Second operand 5 states and 765 transitions. [2025-04-29 11:10:19,557 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 182 places, 167 transitions, 590 flow [2025-04-29 11:10:19,559 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 175 places, 167 transitions, 560 flow, removed 7 selfloop flow, removed 7 redundant places. [2025-04-29 11:10:19,559 INFO L231 Difference]: Finished difference. Result has 175 places, 0 transitions, 0 flow [2025-04-29 11:10:19,560 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=183, PETRI_DIFFERENCE_MINUEND_FLOW=422, PETRI_DIFFERENCE_MINUEND_PLACES=171, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=156, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=156, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=175, PETRI_TRANSITIONS=0} [2025-04-29 11:10:19,560 INFO L279 CegarLoopForPetriNet]: 179 programPoint places, -4 predicate places. [2025-04-29 11:10:19,561 INFO L485 AbstractCegarLoop]: Abstraction has has 175 places, 0 transitions, 0 flow [2025-04-29 11:10:19,562 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 148.16666666666666) internal successors, (889), 6 states have internal predecessors, (889), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-29 11:10:19,564 INFO L790 garLoopResultBuilder]: Registering result SAFE for location t2_funErr0ASSERT_VIOLATIONDATA_RACE (21 of 22 remaining) [2025-04-29 11:10:19,564 INFO L790 garLoopResultBuilder]: Registering result SAFE for location t2_funErr1ASSERT_VIOLATIONDATA_RACE (20 of 22 remaining) [2025-04-29 11:10:19,564 INFO L790 garLoopResultBuilder]: Registering result SAFE for location t2_funErr2ASSERT_VIOLATIONDATA_RACE (19 of 22 remaining) [2025-04-29 11:10:19,564 INFO L790 garLoopResultBuilder]: Registering result SAFE for location t2_funErr3ASSERT_VIOLATIONDATA_RACE (18 of 22 remaining) [2025-04-29 11:10:19,564 INFO L790 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (17 of 22 remaining) [2025-04-29 11:10:19,564 INFO L790 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (16 of 22 remaining) [2025-04-29 11:10:19,564 INFO L790 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (15 of 22 remaining) [2025-04-29 11:10:19,564 INFO L790 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (14 of 22 remaining) [2025-04-29 11:10:19,564 INFO L790 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (13 of 22 remaining) [2025-04-29 11:10:19,564 INFO L790 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (12 of 22 remaining) [2025-04-29 11:10:19,564 INFO L790 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (11 of 22 remaining) [2025-04-29 11:10:19,565 INFO L790 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONDATA_RACE (10 of 22 remaining) [2025-04-29 11:10:19,565 INFO L790 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONDATA_RACE (9 of 22 remaining) [2025-04-29 11:10:19,566 INFO L790 garLoopResultBuilder]: Registering result SAFE for location t_funErr3ASSERT_VIOLATIONDATA_RACE (8 of 22 remaining) [2025-04-29 11:10:19,566 INFO L790 garLoopResultBuilder]: Registering result SAFE for location t2_funErr0ASSERT_VIOLATIONDATA_RACE (7 of 22 remaining) [2025-04-29 11:10:19,566 INFO L790 garLoopResultBuilder]: Registering result SAFE for location t2_funErr1ASSERT_VIOLATIONDATA_RACE (6 of 22 remaining) [2025-04-29 11:10:19,566 INFO L790 garLoopResultBuilder]: Registering result SAFE for location t2_funErr2ASSERT_VIOLATIONDATA_RACE (5 of 22 remaining) [2025-04-29 11:10:19,566 INFO L790 garLoopResultBuilder]: Registering result SAFE for location t2_funErr3ASSERT_VIOLATIONDATA_RACE (4 of 22 remaining) [2025-04-29 11:10:19,566 INFO L790 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (3 of 22 remaining) [2025-04-29 11:10:19,566 INFO L790 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONDATA_RACE (2 of 22 remaining) [2025-04-29 11:10:19,566 INFO L790 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONDATA_RACE (1 of 22 remaining) [2025-04-29 11:10:19,566 INFO L790 garLoopResultBuilder]: Registering result SAFE for location t_funErr3ASSERT_VIOLATIONDATA_RACE (0 of 22 remaining) [2025-04-29 11:10:19,567 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2025-04-29 11:10:19,567 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-29 11:10:19,572 INFO L242 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-04-29 11:10:19,572 INFO L171 ceAbstractionStarter]: Computing trace abstraction results [2025-04-29 11:10:19,575 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.04 11:10:19 BasicIcfg [2025-04-29 11:10:19,577 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-04-29 11:10:19,578 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-04-29 11:10:19,578 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-04-29 11:10:19,578 INFO L274 PluginConnector]: Witness Printer initialized [2025-04-29 11:10:19,579 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.04 11:10:07" (3/4) ... [2025-04-29 11:10:19,580 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-04-29 11:10:19,582 INFO L362 RCFGBacktranslator]: Ignoring RootEdge to procedure t2_fun [2025-04-29 11:10:19,582 INFO L362 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2025-04-29 11:10:19,584 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2025-04-29 11:10:19,584 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2025-04-29 11:10:19,585 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2025-04-29 11:10:19,639 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-04-29 11:10:19,640 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2025-04-29 11:10:19,640 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-04-29 11:10:19,640 INFO L158 Benchmark]: Toolchain (without parser) took 12729.80ms. Allocated memory was 142.6MB in the beginning and 2.6GB in the end (delta: 2.5GB). Free memory was 111.1MB in the beginning and 1.6GB in the end (delta: -1.5GB). Peak memory consumption was 986.3MB. Max. memory is 16.1GB. [2025-04-29 11:10:19,640 INFO L158 Benchmark]: CDTParser took 0.48ms. Allocated memory is still 201.3MB. Free memory is still 125.9MB. There was no memory consumed. Max. memory is 16.1GB. [2025-04-29 11:10:19,641 INFO L158 Benchmark]: CACSL2BoogieTranslator took 193.97ms. Allocated memory is still 142.6MB. Free memory was 110.4MB in the beginning and 96.5MB in the end (delta: 13.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-04-29 11:10:19,641 INFO L158 Benchmark]: Boogie Procedure Inliner took 26.67ms. Allocated memory is still 142.6MB. Free memory was 96.5MB in the beginning and 94.9MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2025-04-29 11:10:19,641 INFO L158 Benchmark]: Boogie Preprocessor took 24.20ms. Allocated memory is still 142.6MB. Free memory was 94.9MB in the beginning and 93.3MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2025-04-29 11:10:19,642 INFO L158 Benchmark]: RCFGBuilder took 423.11ms. Allocated memory is still 142.6MB. Free memory was 93.3MB in the beginning and 70.5MB in the end (delta: 22.7MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2025-04-29 11:10:19,642 INFO L158 Benchmark]: TraceAbstraction took 11994.99ms. Allocated memory was 142.6MB in the beginning and 2.6GB in the end (delta: 2.5GB). Free memory was 69.7MB in the beginning and 1.6GB in the end (delta: -1.5GB). Peak memory consumption was 936.0MB. Max. memory is 16.1GB. [2025-04-29 11:10:19,643 INFO L158 Benchmark]: Witness Printer took 61.66ms. Allocated memory is still 2.6GB. Free memory was 1.6GB in the beginning and 1.6GB in the end (delta: 5.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-04-29 11:10:19,644 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.48ms. Allocated memory is still 201.3MB. Free memory is still 125.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 193.97ms. Allocated memory is still 142.6MB. Free memory was 110.4MB in the beginning and 96.5MB in the end (delta: 13.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 26.67ms. Allocated memory is still 142.6MB. Free memory was 96.5MB in the beginning and 94.9MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 24.20ms. Allocated memory is still 142.6MB. Free memory was 94.9MB in the beginning and 93.3MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 423.11ms. Allocated memory is still 142.6MB. Free memory was 93.3MB in the beginning and 70.5MB in the end (delta: 22.7MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * TraceAbstraction took 11994.99ms. Allocated memory was 142.6MB in the beginning and 2.6GB in the end (delta: 2.5GB). Free memory was 69.7MB in the beginning and 1.6GB in the end (delta: -1.5GB). Peak memory consumption was 936.0MB. Max. memory is 16.1GB. * Witness Printer took 61.66ms. Allocated memory is still 2.6GB. Free memory was 1.6GB in the beginning and 1.6GB in the end (delta: 5.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 35]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 35]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 38]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 38]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 52]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 57]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 60]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 65]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 23]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 23]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 26]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 26]: 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, 258 locations, 261 edges, 22 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: 11.9s, OverallIterations: 10, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 10.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 627 SdHoareTripleChecker+Valid, 0.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 440 mSDsluCounter, 78 SdHoareTripleChecker+Invalid, 0.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2 mSDsCounter, 92 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 920 IncrementalHoareTripleChecker+Invalid, 1012 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 92 mSolverCounterUnsat, 76 mSDtfsCounter, 920 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 47 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=651occurred in iteration=8, InterpolantAutomatonStates: 38, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 528 NumberOfCodeBlocks, 528 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 518 ConstructedInterpolants, 0 QuantifiedInterpolants, 1328 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 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 12 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2025-04-29 11:10:19,658 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE