./Ultimate.py --spec ../sv-benchmarks/c/properties/no-data-race.prp --file ../sv-benchmarks/c/pthread-wmm/mix036.oepc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 798a7b37 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 ../sv-benchmarks/c/pthread-wmm/mix036.oepc.i -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 e3d3e405a2d3cb3ab8b02ed87788ef59412b7b81517118cc37c044f334087868 --- Real Ultimate output --- This is Ultimate 0.3.0-?-798a7b3-m [2025-03-04 06:32:34,583 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-04 06:32:34,637 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2025-03-04 06:32:34,647 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-04 06:32:34,647 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-04 06:32:34,669 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-04 06:32:34,670 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-04 06:32:34,670 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-04 06:32:34,670 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-04 06:32:34,671 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-04 06:32:34,672 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-04 06:32:34,672 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-04 06:32:34,672 INFO L153 SettingsManager]: * Use SBE=true [2025-03-04 06:32:34,672 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-04 06:32:34,673 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-04 06:32:34,673 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-04 06:32:34,673 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-04 06:32:34,673 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-04 06:32:34,673 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-04 06:32:34,673 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-04 06:32:34,673 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-04 06:32:34,673 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-04 06:32:34,673 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2025-03-04 06:32:34,673 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-04 06:32:34,673 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-04 06:32:34,673 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-04 06:32:34,674 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-04 06:32:34,674 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-04 06:32:34,674 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-04 06:32:34,674 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-04 06:32:34,674 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-04 06:32:34,674 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-04 06:32:34,674 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-04 06:32:34,675 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-04 06:32:34,675 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-04 06:32:34,675 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-04 06:32:34,675 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-04 06:32:34,675 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-04 06:32:34,675 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-04 06:32:34,675 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-04 06:32:34,675 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-04 06:32:34,675 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-04 06:32:34,675 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 -> e3d3e405a2d3cb3ab8b02ed87788ef59412b7b81517118cc37c044f334087868 [2025-03-04 06:32:34,885 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-04 06:32:34,894 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-04 06:32:34,896 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-04 06:32:34,897 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-04 06:32:34,897 INFO L274 PluginConnector]: CDTParser initialized [2025-03-04 06:32:34,899 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/mix036.oepc.i [2025-03-04 06:32:36,050 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b2e94244b/640292b40fbc4cb7b71c9760c326fd91/FLAG968516c8f [2025-03-04 06:32:36,335 INFO L384 CDTParser]: Found 1 translation units. [2025-03-04 06:32:36,335 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/mix036.oepc.i [2025-03-04 06:32:36,352 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b2e94244b/640292b40fbc4cb7b71c9760c326fd91/FLAG968516c8f [2025-03-04 06:32:36,619 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b2e94244b/640292b40fbc4cb7b71c9760c326fd91 [2025-03-04 06:32:36,620 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-04 06:32:36,621 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-04 06:32:36,622 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-04 06:32:36,622 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-04 06:32:36,625 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-04 06:32:36,626 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 06:32:36" (1/1) ... [2025-03-04 06:32:36,626 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@35c14591 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 06:32:36, skipping insertion in model container [2025-03-04 06:32:36,626 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 06:32:36" (1/1) ... [2025-03-04 06:32:36,658 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-04 06:32:36,981 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-04 06:32:36,989 INFO L200 MainTranslator]: Completed pre-run [2025-03-04 06:32:37,054 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-04 06:32:37,082 INFO L204 MainTranslator]: Completed translation [2025-03-04 06:32:37,084 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 06:32:37 WrapperNode [2025-03-04 06:32:37,085 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-04 06:32:37,086 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-04 06:32:37,086 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-04 06:32:37,086 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-04 06:32:37,090 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 06:32:37" (1/1) ... [2025-03-04 06:32:37,107 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 06:32:37" (1/1) ... [2025-03-04 06:32:37,130 INFO L138 Inliner]: procedures = 176, calls = 56, calls flagged for inlining = 6, calls inlined = 7, statements flattened = 508 [2025-03-04 06:32:37,138 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-04 06:32:37,138 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-04 06:32:37,138 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-04 06:32:37,138 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-04 06:32:37,146 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 06:32:37" (1/1) ... [2025-03-04 06:32:37,146 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 06:32:37" (1/1) ... [2025-03-04 06:32:37,155 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 06:32:37" (1/1) ... [2025-03-04 06:32:37,155 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 06:32:37" (1/1) ... [2025-03-04 06:32:37,170 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 06:32:37" (1/1) ... [2025-03-04 06:32:37,172 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 06:32:37" (1/1) ... [2025-03-04 06:32:37,176 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 06:32:37" (1/1) ... [2025-03-04 06:32:37,178 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 06:32:37" (1/1) ... [2025-03-04 06:32:37,181 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-04 06:32:37,188 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-04 06:32:37,189 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-04 06:32:37,189 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-04 06:32:37,189 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 06:32:37" (1/1) ... [2025-03-04 06:32:37,195 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-04 06:32:37,204 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 06:32:37,218 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) [2025-03-04 06:32:37,220 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 [2025-03-04 06:32:37,238 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2025-03-04 06:32:37,238 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-04 06:32:37,239 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2025-03-04 06:32:37,239 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2025-03-04 06:32:37,239 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2025-03-04 06:32:37,239 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2025-03-04 06:32:37,239 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2025-03-04 06:32:37,239 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2025-03-04 06:32:37,239 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2025-03-04 06:32:37,239 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2025-03-04 06:32:37,239 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2025-03-04 06:32:37,239 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2025-03-04 06:32:37,240 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-04 06:32:37,240 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-04 06:32:37,241 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-03-04 06:32:37,423 INFO L256 CfgBuilder]: Building ICFG [2025-03-04 06:32:37,424 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-04 06:32:38,533 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-03-04 06:32:38,534 INFO L307 CfgBuilder]: Performing block encoding [2025-03-04 06:32:41,059 WARN L170 LargeBlockEncoding]: Complex 2:22 sequential composition. Such compositions can cause exponential blowup and should not occur in structured programs. [2025-03-04 06:32:41,087 WARN L170 LargeBlockEncoding]: Complex 2:22 sequential composition. Such compositions can cause exponential blowup and should not occur in structured programs. [2025-03-04 06:32:41,109 WARN L170 LargeBlockEncoding]: Complex 2:22 sequential composition. Such compositions can cause exponential blowup and should not occur in structured programs. [2025-03-04 06:32:41,133 WARN L170 LargeBlockEncoding]: Complex 2:22 sequential composition. Such compositions can cause exponential blowup and should not occur in structured programs. [2025-03-04 06:32:41,158 WARN L170 LargeBlockEncoding]: Complex 2:22 sequential composition. Such compositions can cause exponential blowup and should not occur in structured programs. [2025-03-04 06:32:41,186 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-04 06:32:41,186 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-04 06:32:41,187 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 06:32:41 BoogieIcfgContainer [2025-03-04 06:32:41,187 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-04 06:32:41,188 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-04 06:32:41,189 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-04 06:32:41,193 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-04 06:32:41,193 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.03 06:32:36" (1/3) ... [2025-03-04 06:32:41,194 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@df1408f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.03 06:32:41, skipping insertion in model container [2025-03-04 06:32:41,194 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 06:32:37" (2/3) ... [2025-03-04 06:32:41,194 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@df1408f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.03 06:32:41, skipping insertion in model container [2025-03-04 06:32:41,194 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 06:32:41" (3/3) ... [2025-03-04 06:32:41,195 INFO L128 eAbstractionObserver]: Analyzing ICFG mix036.oepc.i [2025-03-04 06:32:41,207 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-04 06:32:41,209 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG mix036.oepc.i that has 5 procedures, 418 locations, 1 initial locations, 0 loop locations, and 285 error locations. [2025-03-04 06:32:41,209 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-03-04 06:32:41,500 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-03-04 06:32:41,539 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 430 places, 530 transitions, 1076 flow [2025-03-04 06:32:41,815 INFO L124 PetriNetUnfolderBase]: 113/526 cut-off events. [2025-03-04 06:32:41,817 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-04 06:32:41,840 INFO L83 FinitePrefix]: Finished finitePrefix Result has 539 conditions, 526 events. 113/526 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 99. Compared 2448 event pairs, 0 based on Foata normal form. 0/128 useless extension candidates. Maximal degree in co-relation 486. Up to 2 conditions per place. [2025-03-04 06:32:41,841 INFO L82 GeneralOperation]: Start removeDead. Operand has 430 places, 530 transitions, 1076 flow [2025-03-04 06:32:41,881 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 426 places, 526 transitions, 1064 flow [2025-03-04 06:32:41,886 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-04 06:32:41,897 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@4bbff5a4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-04 06:32:41,897 INFO L334 AbstractCegarLoop]: Starting to check reachability of 536 error locations. [2025-03-04 06:32:41,908 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-03-04 06:32:41,908 INFO L124 PetriNetUnfolderBase]: 0/48 cut-off events. [2025-03-04 06:32:41,908 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-04 06:32:41,908 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 06:32:41,910 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 06:32:41,910 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err50ASSERT_VIOLATIONDATA_RACE === [P0Err50ASSERT_VIOLATIONDATA_RACE, P0Err49ASSERT_VIOLATIONDATA_RACE, P0Err48ASSERT_VIOLATIONDATA_RACE, P0Err47ASSERT_VIOLATIONDATA_RACE (and 532 more)] === [2025-03-04 06:32:41,914 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 06:32:41,915 INFO L85 PathProgramCache]: Analyzing trace with hash 274541928, now seen corresponding path program 1 times [2025-03-04 06:32:41,921 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 06:32:41,922 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1283044981] [2025-03-04 06:32:41,922 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 06:32:41,922 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 06:32:41,997 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 48 statements into 1 equivalence classes. [2025-03-04 06:32:42,013 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 48 of 48 statements. [2025-03-04 06:32:42,013 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 06:32:42,013 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 06:32:42,094 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 06:32:42,094 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 06:32:42,094 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1283044981] [2025-03-04 06:32:42,095 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1283044981] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 06:32:42,095 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 06:32:42,095 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-03-04 06:32:42,096 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [16984908] [2025-03-04 06:32:42,097 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 06:32:42,102 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-03-04 06:32:42,107 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 06:32:42,124 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-03-04 06:32:42,125 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-04 06:32:42,128 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 108 out of 530 [2025-03-04 06:32:42,132 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 426 places, 526 transitions, 1064 flow. Second operand has 2 states, 2 states have (on average 109.0) internal successors, (218), 2 states have internal predecessors, (218), 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) [2025-03-04 06:32:42,133 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 06:32:42,133 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 108 of 530 [2025-03-04 06:32:42,135 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 06:32:55,219 INFO L124 PetriNetUnfolderBase]: 14431/33253 cut-off events. [2025-03-04 06:32:55,219 INFO L125 PetriNetUnfolderBase]: For 156/156 co-relation queries the response was YES. [2025-03-04 06:32:55,370 INFO L83 FinitePrefix]: Finished finitePrefix Result has 51657 conditions, 33253 events. 14431/33253 cut-off events. For 156/156 co-relation queries the response was YES. Maximal size of possible extension queue 1206. Compared 373363 event pairs, 10870 based on Foata normal form. 2568/30316 useless extension candidates. Maximal degree in co-relation 51602. Up to 18087 conditions per place. [2025-03-04 06:32:55,533 INFO L140 encePairwiseOnDemand]: 139/530 looper letters, 30 selfloop transitions, 0 changer transitions 0/133 dead transitions. [2025-03-04 06:32:55,533 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 142 places, 133 transitions, 338 flow [2025-03-04 06:32:55,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-04 06:32:55,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2025-03-04 06:32:55,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 637 transitions. [2025-03-04 06:32:55,552 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6009433962264151 [2025-03-04 06:32:55,554 INFO L175 Difference]: Start difference. First operand has 426 places, 526 transitions, 1064 flow. Second operand 2 states and 637 transitions. [2025-03-04 06:32:55,555 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 142 places, 133 transitions, 338 flow [2025-03-04 06:32:55,560 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 138 places, 133 transitions, 334 flow, removed 0 selfloop flow, removed 4 redundant places. [2025-03-04 06:32:55,564 INFO L231 Difference]: Finished difference. Result has 138 places, 133 transitions, 274 flow [2025-03-04 06:32:55,566 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=530, PETRI_DIFFERENCE_MINUEND_FLOW=274, PETRI_DIFFERENCE_MINUEND_PLACES=137, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=133, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=133, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=274, PETRI_PLACES=138, PETRI_TRANSITIONS=133} [2025-03-04 06:32:55,570 INFO L279 CegarLoopForPetriNet]: 426 programPoint places, -288 predicate places. [2025-03-04 06:32:55,571 INFO L471 AbstractCegarLoop]: Abstraction has has 138 places, 133 transitions, 274 flow [2025-03-04 06:32:55,571 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 109.0) internal successors, (218), 2 states have internal predecessors, (218), 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) [2025-03-04 06:32:55,571 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 06:32:55,571 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] [2025-03-04 06:32:55,571 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-04 06:32:55,572 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr35ASSERT_VIOLATIONDATA_RACE === [P0Err50ASSERT_VIOLATIONDATA_RACE, P0Err49ASSERT_VIOLATIONDATA_RACE, P0Err48ASSERT_VIOLATIONDATA_RACE, P0Err47ASSERT_VIOLATIONDATA_RACE (and 532 more)] === [2025-03-04 06:32:55,574 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 06:32:55,574 INFO L85 PathProgramCache]: Analyzing trace with hash -205474425, now seen corresponding path program 1 times [2025-03-04 06:32:55,574 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 06:32:55,574 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [27800898] [2025-03-04 06:32:55,575 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 06:32:55,575 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 06:32:55,612 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 72 statements into 1 equivalence classes. [2025-03-04 06:32:55,632 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 72 of 72 statements. [2025-03-04 06:32:55,636 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 06:32:55,636 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 06:32:55,903 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 06:32:55,903 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 06:32:55,903 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [27800898] [2025-03-04 06:32:55,903 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [27800898] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 06:32:55,903 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 06:32:55,904 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-04 06:32:55,904 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [300275478] [2025-03-04 06:32:55,904 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 06:32:55,905 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-04 06:32:55,905 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 06:32:55,905 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-04 06:32:55,906 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-04 06:32:55,909 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 105 out of 530 [2025-03-04 06:32:55,909 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 138 places, 133 transitions, 274 flow. Second operand has 3 states, 3 states have (on average 107.33333333333333) internal successors, (322), 3 states have internal predecessors, (322), 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) [2025-03-04 06:32:55,910 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 06:32:55,910 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 105 of 530 [2025-03-04 06:32:55,910 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 06:33:12,695 INFO L124 PetriNetUnfolderBase]: 21431/47806 cut-off events. [2025-03-04 06:33:12,696 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-04 06:33:12,876 INFO L83 FinitePrefix]: Finished finitePrefix Result has 74957 conditions, 47806 events. 21431/47806 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 1178. Compared 526907 event pairs, 5170 based on Foata normal form. 0/40268 useless extension candidates. Maximal degree in co-relation 74954. Up to 18375 conditions per place. [2025-03-04 06:33:13,061 INFO L140 encePairwiseOnDemand]: 528/530 looper letters, 53 selfloop transitions, 1 changer transitions 0/154 dead transitions. [2025-03-04 06:33:13,061 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 139 places, 154 transitions, 424 flow [2025-03-04 06:33:13,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-04 06:33:13,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-04 06:33:13,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 370 transitions. [2025-03-04 06:33:13,064 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.23270440251572327 [2025-03-04 06:33:13,064 INFO L175 Difference]: Start difference. First operand has 138 places, 133 transitions, 274 flow. Second operand 3 states and 370 transitions. [2025-03-04 06:33:13,064 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 139 places, 154 transitions, 424 flow [2025-03-04 06:33:13,065 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 139 places, 154 transitions, 424 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-03-04 06:33:13,069 INFO L231 Difference]: Finished difference. Result has 139 places, 132 transitions, 274 flow [2025-03-04 06:33:13,069 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=530, PETRI_DIFFERENCE_MINUEND_FLOW=272, PETRI_DIFFERENCE_MINUEND_PLACES=137, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=132, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=131, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=274, PETRI_PLACES=139, PETRI_TRANSITIONS=132} [2025-03-04 06:33:13,072 INFO L279 CegarLoopForPetriNet]: 426 programPoint places, -287 predicate places. [2025-03-04 06:33:13,072 INFO L471 AbstractCegarLoop]: Abstraction has has 139 places, 132 transitions, 274 flow [2025-03-04 06:33:13,072 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 107.33333333333333) internal successors, (322), 3 states have internal predecessors, (322), 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) [2025-03-04 06:33:13,072 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 06:33:13,072 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] [2025-03-04 06:33:13,072 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-04 06:33:13,072 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [P0Err50ASSERT_VIOLATIONDATA_RACE, P0Err49ASSERT_VIOLATIONDATA_RACE, P0Err48ASSERT_VIOLATIONDATA_RACE, P0Err47ASSERT_VIOLATIONDATA_RACE (and 532 more)] === [2025-03-04 06:33:13,073 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 06:33:13,073 INFO L85 PathProgramCache]: Analyzing trace with hash 654228544, now seen corresponding path program 1 times [2025-03-04 06:33:13,073 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 06:33:13,073 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [252967330] [2025-03-04 06:33:13,074 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 06:33:13,074 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 06:33:13,117 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 82 statements into 1 equivalence classes. [2025-03-04 06:33:13,145 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 82 of 82 statements. [2025-03-04 06:33:13,145 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 06:33:13,146 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 06:33:13,254 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 06:33:13,255 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 06:33:13,255 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [252967330] [2025-03-04 06:33:13,255 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [252967330] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 06:33:13,255 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 06:33:13,257 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-04 06:33:13,257 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [810984106] [2025-03-04 06:33:13,257 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 06:33:13,258 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-04 06:33:13,258 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 06:33:13,258 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-04 06:33:13,258 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-04 06:33:13,263 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 105 out of 530 [2025-03-04 06:33:13,263 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 139 places, 132 transitions, 274 flow. Second operand has 3 states, 3 states have (on average 108.0) internal successors, (324), 3 states have internal predecessors, (324), 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) [2025-03-04 06:33:13,264 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 06:33:13,264 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 105 of 530 [2025-03-04 06:33:13,264 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand