./Ultimate.py --spec ../sv-benchmarks/c/properties/no-data-race.prp --file ../sv-benchmarks/c/pthread-wmm/mix020.opt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version c00e63dc Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/pthread-wmm/mix020.opt.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash b3c17f675455332f72f7dc385a60a0aa293a9aeb1dd45189023ae89322443476 --- Real Ultimate output --- This is Ultimate 0.3.0-?-c00e63d-m [2025-02-06 09:04:40,682 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-06 09:04:40,743 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2025-02-06 09:04:40,749 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-06 09:04:40,750 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-06 09:04:40,772 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-06 09:04:40,773 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-06 09:04:40,773 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-06 09:04:40,774 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-06 09:04:40,774 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-06 09:04:40,774 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-06 09:04:40,775 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-06 09:04:40,775 INFO L153 SettingsManager]: * Use SBE=true [2025-02-06 09:04:40,775 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-06 09:04:40,775 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-06 09:04:40,775 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-06 09:04:40,775 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-06 09:04:40,775 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-06 09:04:40,775 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-06 09:04:40,776 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-06 09:04:40,776 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-06 09:04:40,776 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-06 09:04:40,776 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2025-02-06 09:04:40,776 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-06 09:04:40,776 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-06 09:04:40,776 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-06 09:04:40,776 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-06 09:04:40,776 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-06 09:04:40,776 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-06 09:04:40,776 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-06 09:04:40,776 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-06 09:04:40,776 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 09:04:40,776 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-06 09:04:40,776 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-06 09:04:40,776 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-06 09:04:40,776 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-06 09:04:40,776 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-06 09:04:40,776 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-06 09:04:40,776 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-06 09:04:40,776 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-06 09:04:40,776 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-06 09:04:40,776 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-06 09:04:40,777 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b3c17f675455332f72f7dc385a60a0aa293a9aeb1dd45189023ae89322443476 [2025-02-06 09:04:41,019 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-06 09:04:41,029 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-06 09:04:41,031 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-06 09:04:41,032 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-06 09:04:41,033 INFO L274 PluginConnector]: CDTParser initialized [2025-02-06 09:04:41,034 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/mix020.opt.i [2025-02-06 09:04:42,288 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/5568ea9b7/989869be3f2342d8be8ba1e44f9611ff/FLAG813e6215a [2025-02-06 09:04:42,563 INFO L384 CDTParser]: Found 1 translation units. [2025-02-06 09:04:42,564 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/pthread-wmm/mix020.opt.i [2025-02-06 09:04:42,574 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/5568ea9b7/989869be3f2342d8be8ba1e44f9611ff/FLAG813e6215a [2025-02-06 09:04:42,589 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/5568ea9b7/989869be3f2342d8be8ba1e44f9611ff [2025-02-06 09:04:42,591 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-06 09:04:42,593 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-06 09:04:42,594 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-06 09:04:42,595 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-06 09:04:42,598 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-06 09:04:42,599 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 09:04:42" (1/1) ... [2025-02-06 09:04:42,599 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@21042d4a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:04:42, skipping insertion in model container [2025-02-06 09:04:42,599 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 09:04:42" (1/1) ... [2025-02-06 09:04:42,643 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-06 09:04:42,984 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 09:04:43,005 INFO L200 MainTranslator]: Completed pre-run [2025-02-06 09:04:43,121 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 09:04:43,154 INFO L204 MainTranslator]: Completed translation [2025-02-06 09:04:43,155 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:04:43 WrapperNode [2025-02-06 09:04:43,155 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-06 09:04:43,156 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-06 09:04:43,156 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-06 09:04:43,156 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-06 09:04:43,160 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:04:43" (1/1) ... [2025-02-06 09:04:43,180 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:04:43" (1/1) ... [2025-02-06 09:04:43,218 INFO L138 Inliner]: procedures = 176, calls = 54, calls flagged for inlining = 6, calls inlined = 7, statements flattened = 964 [2025-02-06 09:04:43,219 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-06 09:04:43,223 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-06 09:04:43,223 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-06 09:04:43,223 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-06 09:04:43,235 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:04:43" (1/1) ... [2025-02-06 09:04:43,235 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:04:43" (1/1) ... [2025-02-06 09:04:43,242 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:04:43" (1/1) ... [2025-02-06 09:04:43,243 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:04:43" (1/1) ... [2025-02-06 09:04:43,266 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:04:43" (1/1) ... [2025-02-06 09:04:43,269 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:04:43" (1/1) ... [2025-02-06 09:04:43,271 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:04:43" (1/1) ... [2025-02-06 09:04:43,278 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:04:43" (1/1) ... [2025-02-06 09:04:43,285 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-06 09:04:43,289 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-06 09:04:43,289 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-06 09:04:43,289 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-06 09:04:43,290 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:04:43" (1/1) ... [2025-02-06 09:04:43,294 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 09:04:43,309 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 09:04:43,324 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-02-06 09:04:43,327 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-02-06 09:04:43,347 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2025-02-06 09:04:43,347 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-06 09:04:43,347 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2025-02-06 09:04:43,347 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2025-02-06 09:04:43,347 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2025-02-06 09:04:43,347 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2025-02-06 09:04:43,348 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2025-02-06 09:04:43,348 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2025-02-06 09:04:43,348 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2025-02-06 09:04:43,348 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2025-02-06 09:04:43,348 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2025-02-06 09:04:43,348 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2025-02-06 09:04:43,348 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-06 09:04:43,348 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-06 09:04:43,350 WARN L227 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-02-06 09:04:43,522 INFO L257 CfgBuilder]: Building ICFG [2025-02-06 09:04:43,525 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-06 09:04:44,851 INFO L304 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-02-06 09:04:44,852 INFO L308 CfgBuilder]: Performing block encoding [2025-02-06 09:04:48,084 WARN L170 LargeBlockEncoding]: Complex 2:7 sequential composition. Such compositions can cause exponential blowup and should not occur in structured programs. [2025-02-06 09:04:48,213 WARN L170 LargeBlockEncoding]: Complex 3:20 sequential composition. Such compositions can cause exponential blowup and should not occur in structured programs. [2025-02-06 09:04:48,771 WARN L170 LargeBlockEncoding]: Complex 2:88 sequential composition. Such compositions can cause exponential blowup and should not occur in structured programs. [2025-02-06 09:04:48,923 WARN L170 LargeBlockEncoding]: Complex 2:22 sequential composition. Such compositions can cause exponential blowup and should not occur in structured programs. [2025-02-06 09:04:48,951 WARN L170 LargeBlockEncoding]: Complex 2:22 sequential composition. Such compositions can cause exponential blowup and should not occur in structured programs. [2025-02-06 09:04:48,982 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-06 09:04:48,982 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-06 09:04:48,983 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 09:04:48 BoogieIcfgContainer [2025-02-06 09:04:48,983 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-06 09:04:48,984 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-06 09:04:48,985 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-06 09:04:48,989 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-06 09:04:48,989 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.02 09:04:42" (1/3) ... [2025-02-06 09:04:48,990 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f7dbcc0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 09:04:48, skipping insertion in model container [2025-02-06 09:04:48,990 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:04:43" (2/3) ... [2025-02-06 09:04:48,990 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f7dbcc0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 09:04:48, skipping insertion in model container [2025-02-06 09:04:48,991 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 09:04:48" (3/3) ... [2025-02-06 09:04:48,992 INFO L128 eAbstractionObserver]: Analyzing ICFG mix020.opt.i [2025-02-06 09:04:49,008 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-06 09:04:49,009 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG mix020.opt.i that has 5 procedures, 423 locations, 1 initial locations, 0 loop locations, and 293 error locations. [2025-02-06 09:04:49,009 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-02-06 09:04:49,821 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-02-06 09:04:49,867 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 435 places, 603 transitions, 1222 flow [2025-02-06 09:04:50,305 INFO L124 PetriNetUnfolderBase]: 181/599 cut-off events. [2025-02-06 09:04:50,308 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-06 09:04:50,341 INFO L83 FinitePrefix]: Finished finitePrefix Result has 612 conditions, 599 events. 181/599 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 100. Compared 2812 event pairs, 0 based on Foata normal form. 0/125 useless extension candidates. Maximal degree in co-relation 561. Up to 3 conditions per place. [2025-02-06 09:04:50,341 INFO L82 GeneralOperation]: Start removeDead. Operand has 435 places, 603 transitions, 1222 flow [2025-02-06 09:04:50,398 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 431 places, 599 transitions, 1210 flow [2025-02-06 09:04:50,404 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-06 09:04:50,419 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;@55168a64, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-06 09:04:50,419 INFO L334 AbstractCegarLoop]: Starting to check reachability of 552 error locations. [2025-02-06 09:04:50,432 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-02-06 09:04:50,433 INFO L124 PetriNetUnfolderBase]: 0/46 cut-off events. [2025-02-06 09:04:50,434 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-06 09:04:50,434 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 09:04:50,435 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] [2025-02-06 09:04:50,435 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err4ASSERT_VIOLATIONDATA_RACE === [P0Err4ASSERT_VIOLATIONDATA_RACE, P0Err3ASSERT_VIOLATIONDATA_RACE, P0Err2ASSERT_VIOLATIONDATA_RACE, P0Err1ASSERT_VIOLATIONDATA_RACE (and 548 more)] === [2025-02-06 09:04:50,440 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:04:50,441 INFO L85 PathProgramCache]: Analyzing trace with hash 1994357937, now seen corresponding path program 1 times [2025-02-06 09:04:50,449 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 09:04:50,449 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1677099924] [2025-02-06 09:04:50,450 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 09:04:50,450 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 09:04:50,549 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 46 statements into 1 equivalence classes. [2025-02-06 09:04:50,567 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 46 of 46 statements. [2025-02-06 09:04:50,568 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 09:04:50,568 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:04:50,644 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 09:04:50,645 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 09:04:50,645 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1677099924] [2025-02-06 09:04:50,646 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1677099924] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 09:04:50,646 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 09:04:50,646 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-02-06 09:04:50,647 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [543403468] [2025-02-06 09:04:50,648 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 09:04:50,662 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-02-06 09:04:50,666 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 09:04:50,686 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-02-06 09:04:50,686 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-02-06 09:04:50,688 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 106 out of 603 [2025-02-06 09:04:50,694 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 431 places, 599 transitions, 1210 flow. Second operand has 2 states, 2 states have (on average 107.0) internal successors, (214), 2 states have internal predecessors, (214), 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) [2025-02-06 09:04:50,694 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 09:04:50,695 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 106 of 603 [2025-02-06 09:04:50,697 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 09:05:19,933 INFO L124 PetriNetUnfolderBase]: 12295/28615 cut-off events. [2025-02-06 09:05:19,934 INFO L125 PetriNetUnfolderBase]: For 156/156 co-relation queries the response was YES. [2025-02-06 09:05:20,013 INFO L83 FinitePrefix]: Finished finitePrefix Result has 44383 conditions, 28615 events. 12295/28615 cut-off events. For 156/156 co-relation queries the response was YES. Maximal size of possible extension queue 1045. Compared 316296 event pairs, 9295 based on Foata normal form. 2193/26114 useless extension candidates. Maximal degree in co-relation 44330. Up to 15451 conditions per place. [2025-02-06 09:05:20,127 INFO L140 encePairwiseOnDemand]: 136/603 looper letters, 29 selfloop transitions, 0 changer transitions 0/130 dead transitions. [2025-02-06 09:05:20,127 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 139 places, 130 transitions, 330 flow [2025-02-06 09:05:20,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-02-06 09:05:20,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2025-02-06 09:05:20,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 708 transitions. [2025-02-06 09:05:20,141 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5870646766169154 [2025-02-06 09:05:20,144 INFO L175 Difference]: Start difference. First operand has 431 places, 599 transitions, 1210 flow. Second operand 2 states and 708 transitions. [2025-02-06 09:05:20,144 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 139 places, 130 transitions, 330 flow [2025-02-06 09:05:20,149 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 135 places, 130 transitions, 326 flow, removed 0 selfloop flow, removed 4 redundant places. [2025-02-06 09:05:20,152 INFO L231 Difference]: Finished difference. Result has 135 places, 130 transitions, 268 flow [2025-02-06 09:05:20,155 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=603, PETRI_DIFFERENCE_MINUEND_FLOW=268, PETRI_DIFFERENCE_MINUEND_PLACES=134, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=130, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=130, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=268, PETRI_PLACES=135, PETRI_TRANSITIONS=130} [2025-02-06 09:05:20,159 INFO L279 CegarLoopForPetriNet]: 431 programPoint places, -296 predicate places. [2025-02-06 09:05:20,161 INFO L471 AbstractCegarLoop]: Abstraction has has 135 places, 130 transitions, 268 flow [2025-02-06 09:05:20,161 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 107.0) internal successors, (214), 2 states have internal predecessors, (214), 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) [2025-02-06 09:05:20,161 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 09:05:20,161 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] [2025-02-06 09:05:20,162 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-02-06 09:05:20,162 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr35ASSERT_VIOLATIONDATA_RACE === [P0Err4ASSERT_VIOLATIONDATA_RACE, P0Err3ASSERT_VIOLATIONDATA_RACE, P0Err2ASSERT_VIOLATIONDATA_RACE, P0Err1ASSERT_VIOLATIONDATA_RACE (and 548 more)] === [2025-02-06 09:05:20,163 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:05:20,164 INFO L85 PathProgramCache]: Analyzing trace with hash -1703171062, now seen corresponding path program 1 times [2025-02-06 09:05:20,164 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 09:05:20,164 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [970239072] [2025-02-06 09:05:20,164 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 09:05:20,164 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 09:05:20,209 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 70 statements into 1 equivalence classes. [2025-02-06 09:05:20,231 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 70 of 70 statements. [2025-02-06 09:05:20,231 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 09:05:20,231 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:05:20,329 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 09:05:20,330 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 09:05:20,330 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [970239072] [2025-02-06 09:05:20,330 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [970239072] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 09:05:20,330 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 09:05:20,330 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-06 09:05:20,330 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [969375330] [2025-02-06 09:05:20,330 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 09:05:20,331 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-06 09:05:20,332 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 09:05:20,332 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 09:05:20,332 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 09:05:20,335 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 103 out of 603 [2025-02-06 09:05:20,336 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 135 places, 130 transitions, 268 flow. Second operand has 3 states, 3 states have (on average 105.33333333333333) internal successors, (316), 3 states have internal predecessors, (316), 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) [2025-02-06 09:05:20,336 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 09:05:20,336 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 103 of 603 [2025-02-06 09:05:20,336 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 09:05:58,866 INFO L124 PetriNetUnfolderBase]: 18245/40993 cut-off events. [2025-02-06 09:05:58,867 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-06 09:05:59,085 INFO L83 FinitePrefix]: Finished finitePrefix Result has 64208 conditions, 40993 events. 18245/40993 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 1016. Compared 444079 event pairs, 4445 based on Foata normal form. 0/34590 useless extension candidates. Maximal degree in co-relation 64205. Up to 15650 conditions per place. [2025-02-06 09:05:59,239 INFO L140 encePairwiseOnDemand]: 601/603 looper letters, 51 selfloop transitions, 1 changer transitions 0/150 dead transitions. [2025-02-06 09:05:59,240 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 136 places, 150 transitions, 412 flow [2025-02-06 09:05:59,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 09:05:59,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-06 09:05:59,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 362 transitions. [2025-02-06 09:05:59,247 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.20011055831951355 [2025-02-06 09:05:59,248 INFO L175 Difference]: Start difference. First operand has 135 places, 130 transitions, 268 flow. Second operand 3 states and 362 transitions. [2025-02-06 09:05:59,248 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 136 places, 150 transitions, 412 flow [2025-02-06 09:05:59,249 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 136 places, 150 transitions, 412 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-02-06 09:05:59,255 INFO L231 Difference]: Finished difference. Result has 136 places, 129 transitions, 268 flow [2025-02-06 09:05:59,256 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=603, PETRI_DIFFERENCE_MINUEND_FLOW=266, PETRI_DIFFERENCE_MINUEND_PLACES=134, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=129, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=128, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=268, PETRI_PLACES=136, PETRI_TRANSITIONS=129} [2025-02-06 09:05:59,256 INFO L279 CegarLoopForPetriNet]: 431 programPoint places, -295 predicate places. [2025-02-06 09:05:59,259 INFO L471 AbstractCegarLoop]: Abstraction has has 136 places, 129 transitions, 268 flow [2025-02-06 09:05:59,260 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 105.33333333333333) internal successors, (316), 3 states have internal predecessors, (316), 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) [2025-02-06 09:05:59,260 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 09:05:59,260 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] [2025-02-06 09:05:59,260 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-02-06 09:05:59,260 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [P0Err4ASSERT_VIOLATIONDATA_RACE, P0Err3ASSERT_VIOLATIONDATA_RACE, P0Err2ASSERT_VIOLATIONDATA_RACE, P0Err1ASSERT_VIOLATIONDATA_RACE (and 548 more)] === [2025-02-06 09:05:59,261 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:05:59,261 INFO L85 PathProgramCache]: Analyzing trace with hash -763019179, now seen corresponding path program 1 times [2025-02-06 09:05:59,261 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 09:05:59,261 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1699077748] [2025-02-06 09:05:59,261 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 09:05:59,262 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 09:05:59,313 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 80 statements into 1 equivalence classes. [2025-02-06 09:05:59,348 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 80 of 80 statements. [2025-02-06 09:05:59,349 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 09:05:59,349 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:05:59,448 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 09:05:59,449 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 09:05:59,449 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1699077748] [2025-02-06 09:05:59,449 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1699077748] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 09:05:59,449 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 09:05:59,449 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-06 09:05:59,449 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1616567646] [2025-02-06 09:05:59,449 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 09:05:59,449 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-06 09:05:59,450 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 09:05:59,450 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 09:05:59,450 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 09:05:59,455 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 103 out of 603 [2025-02-06 09:05:59,455 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 136 places, 129 transitions, 268 flow. Second operand has 3 states, 3 states have (on average 106.0) internal successors, (318), 3 states have internal predecessors, (318), 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) [2025-02-06 09:05:59,455 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 09:05:59,455 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 103 of 603 [2025-02-06 09:05:59,455 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand