./Ultimate.py --spec ../sv-benchmarks/c/properties/no-data-race.prp --file ../sv-benchmarks/c/weaver/chl-poker-hand-symm.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 735b3cc8 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/weaver/chl-poker-hand-symm.wvr.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 6f8a234fc2a7dd634bd03f872a0d7e8707283ecf0f996c6ed729f53ab07d6660 --- Real Ultimate output --- This is Ultimate 0.3.0-?-735b3cc-m [2025-03-14 01:43:04,290 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-14 01:43:04,344 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2025-03-14 01:43:04,348 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-14 01:43:04,348 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-14 01:43:04,370 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-14 01:43:04,371 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-14 01:43:04,371 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-14 01:43:04,372 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-14 01:43:04,372 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-14 01:43:04,373 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-14 01:43:04,373 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-14 01:43:04,373 INFO L153 SettingsManager]: * Use SBE=true [2025-03-14 01:43:04,373 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-14 01:43:04,373 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-14 01:43:04,373 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-14 01:43:04,374 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-14 01:43:04,374 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-14 01:43:04,374 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-14 01:43:04,374 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-14 01:43:04,374 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-14 01:43:04,374 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-14 01:43:04,374 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2025-03-14 01:43:04,374 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-14 01:43:04,374 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-14 01:43:04,374 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-14 01:43:04,374 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-14 01:43:04,374 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-14 01:43:04,374 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-14 01:43:04,374 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-14 01:43:04,375 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-14 01:43:04,375 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-14 01:43:04,375 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-14 01:43:04,375 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-14 01:43:04,375 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-14 01:43:04,375 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-14 01:43:04,375 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-14 01:43:04,375 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-14 01:43:04,375 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-14 01:43:04,375 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-14 01:43:04,375 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-14 01:43:04,375 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-14 01:43:04,375 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 -> 6f8a234fc2a7dd634bd03f872a0d7e8707283ecf0f996c6ed729f53ab07d6660 [2025-03-14 01:43:04,603 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-14 01:43:04,613 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-14 01:43:04,615 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-14 01:43:04,616 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-14 01:43:04,616 INFO L274 PluginConnector]: CDTParser initialized [2025-03-14 01:43:04,617 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/chl-poker-hand-symm.wvr.c [2025-03-14 01:43:05,821 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/add1a3a8e/e958c9ce83304443a7faaab5e3918af7/FLAGa64b77afc [2025-03-14 01:43:06,071 INFO L384 CDTParser]: Found 1 translation units. [2025-03-14 01:43:06,072 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/chl-poker-hand-symm.wvr.c [2025-03-14 01:43:06,079 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/add1a3a8e/e958c9ce83304443a7faaab5e3918af7/FLAGa64b77afc [2025-03-14 01:43:06,387 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/add1a3a8e/e958c9ce83304443a7faaab5e3918af7 [2025-03-14 01:43:06,390 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-14 01:43:06,392 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-14 01:43:06,395 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-14 01:43:06,395 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-14 01:43:06,398 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-14 01:43:06,399 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.03 01:43:06" (1/1) ... [2025-03-14 01:43:06,399 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2fa08ff7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 01:43:06, skipping insertion in model container [2025-03-14 01:43:06,399 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.03 01:43:06" (1/1) ... [2025-03-14 01:43:06,417 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-14 01:43:06,675 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-14 01:43:06,681 INFO L200 MainTranslator]: Completed pre-run [2025-03-14 01:43:06,745 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-14 01:43:06,767 INFO L204 MainTranslator]: Completed translation [2025-03-14 01:43:06,768 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 01:43:06 WrapperNode [2025-03-14 01:43:06,768 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-14 01:43:06,769 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-14 01:43:06,769 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-14 01:43:06,769 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-14 01:43:06,775 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 01:43:06" (1/1) ... [2025-03-14 01:43:06,813 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 01:43:06" (1/1) ... [2025-03-14 01:43:06,908 INFO L138 Inliner]: procedures = 24, calls = 298, calls flagged for inlining = 70, calls inlined = 98, statements flattened = 3241 [2025-03-14 01:43:06,908 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-14 01:43:06,909 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-14 01:43:06,909 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-14 01:43:06,909 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-14 01:43:06,914 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 01:43:06" (1/1) ... [2025-03-14 01:43:06,915 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 01:43:06" (1/1) ... [2025-03-14 01:43:06,934 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 01:43:06" (1/1) ... [2025-03-14 01:43:06,935 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 01:43:06" (1/1) ... [2025-03-14 01:43:07,027 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 01:43:06" (1/1) ... [2025-03-14 01:43:07,040 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 01:43:06" (1/1) ... [2025-03-14 01:43:07,052 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 01:43:06" (1/1) ... [2025-03-14 01:43:07,063 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 01:43:06" (1/1) ... [2025-03-14 01:43:07,084 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-14 01:43:07,084 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-14 01:43:07,085 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-14 01:43:07,085 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-14 01:43:07,086 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 01:43:06" (1/1) ... [2025-03-14 01:43:07,090 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-14 01:43:07,100 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-14 01:43:07,115 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) [2025-03-14 01:43:07,117 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 [2025-03-14 01:43:07,136 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-14 01:43:07,137 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2025-03-14 01:43:07,137 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2025-03-14 01:43:07,137 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2025-03-14 01:43:07,137 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2025-03-14 01:43:07,137 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2025-03-14 01:43:07,137 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2025-03-14 01:43:07,137 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2025-03-14 01:43:07,137 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2025-03-14 01:43:07,137 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-03-14 01:43:07,137 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-14 01:43:07,137 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-14 01:43:07,137 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2025-03-14 01:43:07,140 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-03-14 01:43:07,304 INFO L256 CfgBuilder]: Building ICFG [2025-03-14 01:43:07,306 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-14 01:43:10,029 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-03-14 01:43:10,030 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-14 01:43:10,030 INFO L318 CfgBuilder]: Performing block encoding [2025-03-14 01:43:14,261 WARN L177 LargeBlockEncoding]: Complex 2:2 sequential composition. Such compositions can cause exponential blowup and should not occur in structured programs. [2025-03-14 01:43:14,265 WARN L177 LargeBlockEncoding]: Complex 2:2 sequential composition. Such compositions can cause exponential blowup and should not occur in structured programs. [2025-03-14 01:43:14,269 WARN L177 LargeBlockEncoding]: Complex 2:31 sequential composition. Such compositions can cause exponential blowup and should not occur in structured programs. [2025-03-14 01:43:14,395 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-14 01:43:14,397 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 14.03 01:43:14 BoogieIcfgContainer [2025-03-14 01:43:14,397 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-14 01:43:14,399 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-14 01:43:14,399 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-14 01:43:14,403 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-14 01:43:14,403 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.03 01:43:06" (1/3) ... [2025-03-14 01:43:14,403 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36e8e754 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.03 01:43:14, skipping insertion in model container [2025-03-14 01:43:14,403 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 01:43:06" (2/3) ... [2025-03-14 01:43:14,404 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36e8e754 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.03 01:43:14, skipping insertion in model container [2025-03-14 01:43:14,404 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 14.03 01:43:14" (3/3) ... [2025-03-14 01:43:14,405 INFO L128 eAbstractionObserver]: Analyzing ICFG chl-poker-hand-symm.wvr.c [2025-03-14 01:43:14,419 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-14 01:43:14,421 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG chl-poker-hand-symm.wvr.c that has 3 procedures, 1062 locations, 1 initial locations, 12 loop locations, and 494 error locations. [2025-03-14 01:43:14,422 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-03-14 01:43:15,861 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2025-03-14 01:43:15,905 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1068 places, 1143 transitions, 2300 flow [2025-03-14 01:43:16,467 INFO L124 PetriNetUnfolderBase]: 82/1141 cut-off events. [2025-03-14 01:43:16,471 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2025-03-14 01:43:16,492 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1150 conditions, 1141 events. 82/1141 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 83. Compared 5094 event pairs, 0 based on Foata normal form. 0/565 useless extension candidates. Maximal degree in co-relation 797. Up to 8 conditions per place. [2025-03-14 01:43:16,493 INFO L82 GeneralOperation]: Start removeDead. Operand has 1068 places, 1143 transitions, 2300 flow [2025-03-14 01:43:16,523 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1046 places, 1119 transitions, 2250 flow [2025-03-14 01:43:16,529 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-14 01:43:16,543 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;@415082b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-14 01:43:16,543 INFO L334 AbstractCegarLoop]: Starting to check reachability of 970 error locations. [2025-03-14 01:43:16,554 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-03-14 01:43:16,554 INFO L124 PetriNetUnfolderBase]: 2/71 cut-off events. [2025-03-14 01:43:16,555 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-14 01:43:16,555 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-14 01:43:16,556 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] [2025-03-14 01:43:16,557 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONDATA_RACE === [thread1Err62ASSERT_VIOLATIONDATA_RACE, thread1Err61ASSERT_VIOLATIONDATA_RACE, thread1Err60ASSERT_VIOLATIONDATA_RACE, thread1Err59ASSERT_VIOLATIONDATA_RACE (and 966 more)] === [2025-03-14 01:43:16,560 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 01:43:16,561 INFO L85 PathProgramCache]: Analyzing trace with hash 1946141439, now seen corresponding path program 1 times [2025-03-14 01:43:16,565 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 01:43:16,566 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2051698922] [2025-03-14 01:43:16,568 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-14 01:43:16,568 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 01:43:16,645 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 58 statements into 1 equivalence classes. [2025-03-14 01:43:16,679 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 58 of 58 statements. [2025-03-14 01:43:16,679 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-14 01:43:16,679 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-14 01:43:17,303 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-14 01:43:17,305 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 01:43:17,306 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2051698922] [2025-03-14 01:43:17,307 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2051698922] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-14 01:43:17,307 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-14 01:43:17,307 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-14 01:43:17,308 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1189814547] [2025-03-14 01:43:17,309 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-14 01:43:17,313 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-14 01:43:17,316 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 01:43:17,331 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-14 01:43:17,331 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-03-14 01:43:17,773 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 474 out of 1143 [2025-03-14 01:43:17,780 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1046 places, 1119 transitions, 2250 flow. Second operand has 6 states, 6 states have (on average 475.5) internal successors, (2853), 6 states have internal predecessors, (2853), 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) [2025-03-14 01:43:17,781 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 01:43:17,781 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 474 of 1143 [2025-03-14 01:43:17,783 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 01:43:29,017 INFO L124 PetriNetUnfolderBase]: 119/850 cut-off events. [2025-03-14 01:43:29,017 INFO L125 PetriNetUnfolderBase]: For 18/18 co-relation queries the response was YES. [2025-03-14 01:43:29,018 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1108 conditions, 850 events. 119/850 cut-off events. For 18/18 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 2224 event pairs, 15 based on Foata normal form. 36/770 useless extension candidates. Maximal degree in co-relation 621. Up to 200 conditions per place. [2025-03-14 01:43:29,026 INFO L140 encePairwiseOnDemand]: 569/1143 looper letters, 93 selfloop transitions, 40 changer transitions 16/585 dead transitions. [2025-03-14 01:43:29,026 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 569 places, 585 transitions, 1448 flow [2025-03-14 01:43:29,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-14 01:43:29,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-14 01:43:29,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 3511 transitions. [2025-03-14 01:43:29,067 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5119568387284923 [2025-03-14 01:43:29,068 INFO L175 Difference]: Start difference. First operand has 1046 places, 1119 transitions, 2250 flow. Second operand 6 states and 3511 transitions. [2025-03-14 01:43:29,070 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 569 places, 585 transitions, 1448 flow [2025-03-14 01:43:29,077 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 565 places, 585 transitions, 1440 flow, removed 0 selfloop flow, removed 4 redundant places. [2025-03-14 01:43:29,087 INFO L231 Difference]: Finished difference. Result has 565 places, 569 transitions, 1222 flow [2025-03-14 01:43:29,090 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=1143, PETRI_DIFFERENCE_MINUEND_FLOW=1174, PETRI_DIFFERENCE_MINUEND_PLACES=560, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=585, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=40, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=545, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1222, PETRI_PLACES=565, PETRI_TRANSITIONS=569} [2025-03-14 01:43:29,093 INFO L279 CegarLoopForPetriNet]: 1046 programPoint places, -481 predicate places. [2025-03-14 01:43:29,093 INFO L471 AbstractCegarLoop]: Abstraction has has 565 places, 569 transitions, 1222 flow [2025-03-14 01:43:29,094 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 475.5) internal successors, (2853), 6 states have internal predecessors, (2853), 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) [2025-03-14 01:43:29,094 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-14 01:43:29,095 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] [2025-03-14 01:43:29,095 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-14 01:43:29,095 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONDATA_RACE === [thread1Err62ASSERT_VIOLATIONDATA_RACE, thread1Err61ASSERT_VIOLATIONDATA_RACE, thread1Err60ASSERT_VIOLATIONDATA_RACE, thread1Err59ASSERT_VIOLATIONDATA_RACE (and 966 more)] === [2025-03-14 01:43:29,095 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 01:43:29,096 INFO L85 PathProgramCache]: Analyzing trace with hash 20363405, now seen corresponding path program 1 times [2025-03-14 01:43:29,096 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 01:43:29,096 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2128776942] [2025-03-14 01:43:29,097 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-14 01:43:29,097 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 01:43:29,133 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 58 statements into 1 equivalence classes. [2025-03-14 01:43:29,139 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 58 of 58 statements. [2025-03-14 01:43:29,139 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-14 01:43:29,139 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-14 01:43:29,168 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-14 01:43:29,169 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 01:43:29,169 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2128776942] [2025-03-14 01:43:29,169 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2128776942] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-14 01:43:29,169 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-14 01:43:29,169 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-14 01:43:29,169 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [177914137] [2025-03-14 01:43:29,169 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-14 01:43:29,170 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-14 01:43:29,171 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 01:43:29,171 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-14 01:43:29,171 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-14 01:43:29,179 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 579 out of 1143 [2025-03-14 01:43:29,182 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 565 places, 569 transitions, 1222 flow. Second operand has 3 states, 3 states have (on average 580.3333333333334) internal successors, (1741), 3 states have internal predecessors, (1741), 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) [2025-03-14 01:43:29,182 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 01:43:29,182 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 579 of 1143 [2025-03-14 01:43:29,183 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 01:43:34,656 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2025-03-14 01:43:36,599 INFO L124 PetriNetUnfolderBase]: 119/833 cut-off events. [2025-03-14 01:43:36,599 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2025-03-14 01:43:36,601 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1021 conditions, 833 events. 119/833 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 2203 event pairs, 15 based on Foata normal form. 0/734 useless extension candidates. Maximal degree in co-relation 898. Up to 139 conditions per place. [2025-03-14 01:43:36,604 INFO L140 encePairwiseOnDemand]: 1140/1143 looper letters, 32 selfloop transitions, 2 changer transitions 0/568 dead transitions. [2025-03-14 01:43:36,604 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 550 places, 568 transitions, 1288 flow [2025-03-14 01:43:36,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-14 01:43:36,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-14 01:43:36,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1772 transitions. [2025-03-14 01:43:36,611 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5167687372411782 [2025-03-14 01:43:36,611 INFO L175 Difference]: Start difference. First operand has 565 places, 569 transitions, 1222 flow. Second operand 3 states and 1772 transitions. [2025-03-14 01:43:36,611 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 550 places, 568 transitions, 1288 flow [2025-03-14 01:43:36,614 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 545 places, 568 transitions, 1208 flow, removed 0 selfloop flow, removed 5 redundant places. [2025-03-14 01:43:36,618 INFO L231 Difference]: Finished difference. Result has 545 places, 568 transitions, 1144 flow [2025-03-14 01:43:36,619 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=1143, PETRI_DIFFERENCE_MINUEND_FLOW=1140, PETRI_DIFFERENCE_MINUEND_PLACES=543, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=568, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=566, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1144, PETRI_PLACES=545, PETRI_TRANSITIONS=568} [2025-03-14 01:43:36,619 INFO L279 CegarLoopForPetriNet]: 1046 programPoint places, -501 predicate places. [2025-03-14 01:43:36,619 INFO L471 AbstractCegarLoop]: Abstraction has has 545 places, 568 transitions, 1144 flow [2025-03-14 01:43:36,620 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 580.3333333333334) internal successors, (1741), 3 states have internal predecessors, (1741), 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) [2025-03-14 01:43:36,621 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-14 01:43:36,621 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] [2025-03-14 01:43:36,621 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-14 01:43:36,621 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONDATA_RACE === [thread1Err62ASSERT_VIOLATIONDATA_RACE, thread1Err61ASSERT_VIOLATIONDATA_RACE, thread1Err60ASSERT_VIOLATIONDATA_RACE, thread1Err59ASSERT_VIOLATIONDATA_RACE (and 966 more)] === [2025-03-14 01:43:36,621 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 01:43:36,622 INFO L85 PathProgramCache]: Analyzing trace with hash -28687648, now seen corresponding path program 1 times [2025-03-14 01:43:36,622 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 01:43:36,622 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1596255281] [2025-03-14 01:43:36,622 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-14 01:43:36,622 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 01:43:36,644 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 90 statements into 1 equivalence classes. [2025-03-14 01:43:36,651 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 90 of 90 statements. [2025-03-14 01:43:36,652 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-14 01:43:36,652 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-14 01:43:36,684 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-14 01:43:36,684 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 01:43:36,684 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1596255281] [2025-03-14 01:43:36,684 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1596255281] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-14 01:43:36,684 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-14 01:43:36,684 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-14 01:43:36,684 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1219018100] [2025-03-14 01:43:36,684 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-14 01:43:36,685 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-14 01:43:36,685 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 01:43:36,685 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-14 01:43:36,685 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-14 01:43:36,695 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 579 out of 1143 [2025-03-14 01:43:36,697 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 545 places, 568 transitions, 1144 flow. Second operand has 3 states, 3 states have (on average 580.3333333333334) internal successors, (1741), 3 states have internal predecessors, (1741), 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) [2025-03-14 01:43:36,698 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 01:43:36,698 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 579 of 1143 [2025-03-14 01:43:36,698 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 01:43:42,418 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2025-03-14 01:43:44,566 INFO L124 PetriNetUnfolderBase]: 119/832 cut-off events. [2025-03-14 01:43:44,566 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2025-03-14 01:43:44,567 INFO L83 FinitePrefix]: Finished finitePrefix Result has 982 conditions, 832 events. 119/832 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 2200 event pairs, 15 based on Foata normal form. 0/734 useless extension candidates. Maximal degree in co-relation 901. Up to 139 conditions per place. [2025-03-14 01:43:44,569 INFO L140 encePairwiseOnDemand]: 1140/1143 looper letters, 32 selfloop transitions, 2 changer transitions 0/567 dead transitions. [2025-03-14 01:43:44,569 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 546 places, 567 transitions, 1210 flow [2025-03-14 01:43:44,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-14 01:43:44,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-14 01:43:44,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1772 transitions. [2025-03-14 01:43:44,576 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5167687372411782 [2025-03-14 01:43:44,576 INFO L175 Difference]: Start difference. First operand has 545 places, 568 transitions, 1144 flow. Second operand 3 states and 1772 transitions. [2025-03-14 01:43:44,576 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 546 places, 567 transitions, 1210 flow [2025-03-14 01:43:44,579 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 544 places, 567 transitions, 1206 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-03-14 01:43:44,583 INFO L231 Difference]: Finished difference. Result has 544 places, 567 transitions, 1142 flow [2025-03-14 01:43:44,583 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=1143, PETRI_DIFFERENCE_MINUEND_FLOW=1138, PETRI_DIFFERENCE_MINUEND_PLACES=542, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=567, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=565, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1142, PETRI_PLACES=544, PETRI_TRANSITIONS=567} [2025-03-14 01:43:44,585 INFO L279 CegarLoopForPetriNet]: 1046 programPoint places, -502 predicate places. [2025-03-14 01:43:44,585 INFO L471 AbstractCegarLoop]: Abstraction has has 544 places, 567 transitions, 1142 flow [2025-03-14 01:43:44,586 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 580.3333333333334) internal successors, (1741), 3 states have internal predecessors, (1741), 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) [2025-03-14 01:43:44,586 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-14 01:43:44,586 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-14 01:43:44,586 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-03-14 01:43:44,586 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE === [thread1Err62ASSERT_VIOLATIONDATA_RACE, thread1Err61ASSERT_VIOLATIONDATA_RACE, thread1Err60ASSERT_VIOLATIONDATA_RACE, thread1Err59ASSERT_VIOLATIONDATA_RACE (and 966 more)] === [2025-03-14 01:43:44,588 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 01:43:44,588 INFO L85 PathProgramCache]: Analyzing trace with hash -965742968, now seen corresponding path program 1 times [2025-03-14 01:43:44,588 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 01:43:44,588 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [821345051] [2025-03-14 01:43:44,588 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-14 01:43:44,589 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 01:43:44,613 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 122 statements into 1 equivalence classes. [2025-03-14 01:43:44,618 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 122 of 122 statements. [2025-03-14 01:43:44,619 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-14 01:43:44,619 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-14 01:43:44,669 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-14 01:43:44,669 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 01:43:44,670 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [821345051] [2025-03-14 01:43:44,670 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [821345051] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-14 01:43:44,670 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-14 01:43:44,670 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-14 01:43:44,671 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1704415811] [2025-03-14 01:43:44,671 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-14 01:43:44,671 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-14 01:43:44,671 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 01:43:44,671 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-14 01:43:44,671 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-14 01:43:44,682 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 579 out of 1143 [2025-03-14 01:43:44,684 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 544 places, 567 transitions, 1142 flow. Second operand has 3 states, 3 states have (on average 580.3333333333334) internal successors, (1741), 3 states have internal predecessors, (1741), 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) [2025-03-14 01:43:44,684 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 01:43:44,684 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 579 of 1143 [2025-03-14 01:43:44,684 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 01:43:52,820 INFO L124 PetriNetUnfolderBase]: 119/831 cut-off events. [2025-03-14 01:43:52,821 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2025-03-14 01:43:52,822 INFO L83 FinitePrefix]: Finished finitePrefix Result has 981 conditions, 831 events. 119/831 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 2184 event pairs, 15 based on Foata normal form. 0/734 useless extension candidates. Maximal degree in co-relation 853. Up to 139 conditions per place. [2025-03-14 01:43:52,823 INFO L140 encePairwiseOnDemand]: 1140/1143 looper letters, 32 selfloop transitions, 2 changer transitions 0/566 dead transitions. [2025-03-14 01:43:52,823 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 545 places, 566 transitions, 1208 flow [2025-03-14 01:43:52,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-14 01:43:52,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-14 01:43:52,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1772 transitions. [2025-03-14 01:43:52,831 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5167687372411782 [2025-03-14 01:43:52,832 INFO L175 Difference]: Start difference. First operand has 544 places, 567 transitions, 1142 flow. Second operand 3 states and 1772 transitions. [2025-03-14 01:43:52,832 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 545 places, 566 transitions, 1208 flow [2025-03-14 01:43:52,834 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 543 places, 566 transitions, 1204 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-03-14 01:43:52,837 INFO L231 Difference]: Finished difference. Result has 543 places, 566 transitions, 1140 flow [2025-03-14 01:43:52,838 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=1143, PETRI_DIFFERENCE_MINUEND_FLOW=1136, PETRI_DIFFERENCE_MINUEND_PLACES=541, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=566, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=564, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1140, PETRI_PLACES=543, PETRI_TRANSITIONS=566} [2025-03-14 01:43:52,838 INFO L279 CegarLoopForPetriNet]: 1046 programPoint places, -503 predicate places. [2025-03-14 01:43:52,839 INFO L471 AbstractCegarLoop]: Abstraction has has 543 places, 566 transitions, 1140 flow [2025-03-14 01:43:52,840 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 580.3333333333334) internal successors, (1741), 3 states have internal predecessors, (1741), 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) [2025-03-14 01:43:52,840 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-14 01:43:52,840 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-14 01:43:52,840 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-03-14 01:43:52,840 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE === [thread1Err62ASSERT_VIOLATIONDATA_RACE, thread1Err61ASSERT_VIOLATIONDATA_RACE, thread1Err60ASSERT_VIOLATIONDATA_RACE, thread1Err59ASSERT_VIOLATIONDATA_RACE (and 966 more)] === [2025-03-14 01:43:52,841 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 01:43:52,841 INFO L85 PathProgramCache]: Analyzing trace with hash 1660189198, now seen corresponding path program 1 times [2025-03-14 01:43:52,841 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 01:43:52,841 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [668307255] [2025-03-14 01:43:52,841 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-14 01:43:52,841 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 01:43:52,865 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 154 statements into 1 equivalence classes. [2025-03-14 01:43:52,871 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 154 of 154 statements. [2025-03-14 01:43:52,872 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-14 01:43:52,872 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-14 01:43:52,915 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-14 01:43:52,916 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 01:43:52,916 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [668307255] [2025-03-14 01:43:52,916 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [668307255] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-14 01:43:52,916 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-14 01:43:52,916 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-14 01:43:52,916 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [313767557] [2025-03-14 01:43:52,916 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-14 01:43:52,917 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-14 01:43:52,917 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 01:43:52,918 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-14 01:43:52,918 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-14 01:43:52,924 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 579 out of 1143 [2025-03-14 01:43:52,926 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 543 places, 566 transitions, 1140 flow. Second operand has 3 states, 3 states have (on average 580.3333333333334) internal successors, (1741), 3 states have internal predecessors, (1741), 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) [2025-03-14 01:43:52,926 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 01:43:52,926 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 579 of 1143 [2025-03-14 01:43:52,926 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 01:44:01,513 INFO L124 PetriNetUnfolderBase]: 119/830 cut-off events. [2025-03-14 01:44:01,513 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2025-03-14 01:44:01,514 INFO L83 FinitePrefix]: Finished finitePrefix Result has 980 conditions, 830 events. 119/830 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 2170 event pairs, 15 based on Foata normal form. 0/734 useless extension candidates. Maximal degree in co-relation 805. Up to 139 conditions per place. [2025-03-14 01:44:01,516 INFO L140 encePairwiseOnDemand]: 1140/1143 looper letters, 32 selfloop transitions, 2 changer transitions 0/565 dead transitions. [2025-03-14 01:44:01,516 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 544 places, 565 transitions, 1206 flow [2025-03-14 01:44:01,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-14 01:44:01,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-14 01:44:01,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1772 transitions. [2025-03-14 01:44:01,524 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5167687372411782 [2025-03-14 01:44:01,524 INFO L175 Difference]: Start difference. First operand has 543 places, 566 transitions, 1140 flow. Second operand 3 states and 1772 transitions. [2025-03-14 01:44:01,524 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 544 places, 565 transitions, 1206 flow [2025-03-14 01:44:01,527 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 542 places, 565 transitions, 1202 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-03-14 01:44:01,531 INFO L231 Difference]: Finished difference. Result has 542 places, 565 transitions, 1138 flow [2025-03-14 01:44:01,532 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=1143, PETRI_DIFFERENCE_MINUEND_FLOW=1134, PETRI_DIFFERENCE_MINUEND_PLACES=540, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=565, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=563, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1138, PETRI_PLACES=542, PETRI_TRANSITIONS=565} [2025-03-14 01:44:01,532 INFO L279 CegarLoopForPetriNet]: 1046 programPoint places, -504 predicate places. [2025-03-14 01:44:01,533 INFO L471 AbstractCegarLoop]: Abstraction has has 542 places, 565 transitions, 1138 flow [2025-03-14 01:44:01,534 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 580.3333333333334) internal successors, (1741), 3 states have internal predecessors, (1741), 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) [2025-03-14 01:44:01,534 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-14 01:44:01,534 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-14 01:44:01,534 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-03-14 01:44:01,534 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [thread1Err62ASSERT_VIOLATIONDATA_RACE, thread1Err61ASSERT_VIOLATIONDATA_RACE, thread1Err60ASSERT_VIOLATIONDATA_RACE, thread1Err59ASSERT_VIOLATIONDATA_RACE (and 966 more)] === [2025-03-14 01:44:01,535 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 01:44:01,535 INFO L85 PathProgramCache]: Analyzing trace with hash 808575177, now seen corresponding path program 1 times [2025-03-14 01:44:01,535 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 01:44:01,535 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1298909126] [2025-03-14 01:44:01,535 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-14 01:44:01,535 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 01:44:01,558 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 186 statements into 1 equivalence classes. [2025-03-14 01:44:01,564 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 186 of 186 statements. [2025-03-14 01:44:01,565 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-14 01:44:01,565 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-14 01:44:01,604 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-14 01:44:01,605 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 01:44:01,605 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1298909126] [2025-03-14 01:44:01,605 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1298909126] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-14 01:44:01,605 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-14 01:44:01,605 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-14 01:44:01,605 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1500090305] [2025-03-14 01:44:01,605 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-14 01:44:01,605 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-14 01:44:01,606 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 01:44:01,606 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-14 01:44:01,606 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-14 01:44:01,612 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 579 out of 1143 [2025-03-14 01:44:01,614 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 542 places, 565 transitions, 1138 flow. Second operand has 3 states, 3 states have (on average 580.3333333333334) internal successors, (1741), 3 states have internal predecessors, (1741), 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) [2025-03-14 01:44:01,614 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 01:44:01,614 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 579 of 1143 [2025-03-14 01:44:01,615 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 01:44:06,990 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2025-03-14 01:44:09,257 INFO L124 PetriNetUnfolderBase]: 119/829 cut-off events. [2025-03-14 01:44:09,257 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2025-03-14 01:44:09,258 INFO L83 FinitePrefix]: Finished finitePrefix Result has 979 conditions, 829 events. 119/829 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 2165 event pairs, 15 based on Foata normal form. 0/734 useless extension candidates. Maximal degree in co-relation 757. Up to 139 conditions per place. [2025-03-14 01:44:09,259 INFO L140 encePairwiseOnDemand]: 1140/1143 looper letters, 32 selfloop transitions, 2 changer transitions 0/564 dead transitions. [2025-03-14 01:44:09,259 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 543 places, 564 transitions, 1204 flow [2025-03-14 01:44:09,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-14 01:44:09,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-14 01:44:09,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1772 transitions. [2025-03-14 01:44:09,267 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5167687372411782 [2025-03-14 01:44:09,267 INFO L175 Difference]: Start difference. First operand has 542 places, 565 transitions, 1138 flow. Second operand 3 states and 1772 transitions. [2025-03-14 01:44:09,267 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 543 places, 564 transitions, 1204 flow [2025-03-14 01:44:09,270 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 541 places, 564 transitions, 1200 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-03-14 01:44:09,274 INFO L231 Difference]: Finished difference. Result has 541 places, 564 transitions, 1136 flow [2025-03-14 01:44:09,275 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=1143, PETRI_DIFFERENCE_MINUEND_FLOW=1132, PETRI_DIFFERENCE_MINUEND_PLACES=539, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=564, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=562, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1136, PETRI_PLACES=541, PETRI_TRANSITIONS=564} [2025-03-14 01:44:09,277 INFO L279 CegarLoopForPetriNet]: 1046 programPoint places, -505 predicate places. [2025-03-14 01:44:09,277 INFO L471 AbstractCegarLoop]: Abstraction has has 541 places, 564 transitions, 1136 flow [2025-03-14 01:44:09,278 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 580.3333333333334) internal successors, (1741), 3 states have internal predecessors, (1741), 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) [2025-03-14 01:44:09,278 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-14 01:44:09,279 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-14 01:44:09,279 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-03-14 01:44:09,279 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [thread1Err62ASSERT_VIOLATIONDATA_RACE, thread1Err61ASSERT_VIOLATIONDATA_RACE, thread1Err60ASSERT_VIOLATIONDATA_RACE, thread1Err59ASSERT_VIOLATIONDATA_RACE (and 966 more)] === [2025-03-14 01:44:09,279 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 01:44:09,279 INFO L85 PathProgramCache]: Analyzing trace with hash 1558015013, now seen corresponding path program 1 times [2025-03-14 01:44:09,279 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 01:44:09,280 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [35658801] [2025-03-14 01:44:09,280 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-14 01:44:09,280 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 01:44:09,301 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 218 statements into 1 equivalence classes. [2025-03-14 01:44:09,314 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 218 of 218 statements. [2025-03-14 01:44:09,314 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-14 01:44:09,314 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-14 01:44:09,352 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-14 01:44:09,352 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 01:44:09,352 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [35658801] [2025-03-14 01:44:09,352 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [35658801] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-14 01:44:09,353 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-14 01:44:09,353 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-14 01:44:09,353 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1647169664] [2025-03-14 01:44:09,353 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-14 01:44:09,354 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-14 01:44:09,354 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 01:44:09,354 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-14 01:44:09,354 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-14 01:44:09,362 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 579 out of 1143 [2025-03-14 01:44:09,363 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 541 places, 564 transitions, 1136 flow. Second operand has 3 states, 3 states have (on average 580.3333333333334) internal successors, (1741), 3 states have internal predecessors, (1741), 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) [2025-03-14 01:44:09,364 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 01:44:09,364 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 579 of 1143 [2025-03-14 01:44:09,364 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 01:44:13,904 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2025-03-14 01:44:16,487 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.58s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2025-03-14 01:44:17,959 INFO L124 PetriNetUnfolderBase]: 119/828 cut-off events. [2025-03-14 01:44:17,959 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2025-03-14 01:44:17,961 INFO L83 FinitePrefix]: Finished finitePrefix Result has 978 conditions, 828 events. 119/828 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 2172 event pairs, 15 based on Foata normal form. 0/734 useless extension candidates. Maximal degree in co-relation 709. Up to 139 conditions per place. [2025-03-14 01:44:17,962 INFO L140 encePairwiseOnDemand]: 1140/1143 looper letters, 32 selfloop transitions, 2 changer transitions 0/563 dead transitions. [2025-03-14 01:44:17,963 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 542 places, 563 transitions, 1202 flow [2025-03-14 01:44:17,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-14 01:44:17,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-14 01:44:17,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1772 transitions. [2025-03-14 01:44:17,969 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5167687372411782 [2025-03-14 01:44:17,969 INFO L175 Difference]: Start difference. First operand has 541 places, 564 transitions, 1136 flow. Second operand 3 states and 1772 transitions. [2025-03-14 01:44:17,969 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 542 places, 563 transitions, 1202 flow [2025-03-14 01:44:17,971 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 540 places, 563 transitions, 1198 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-03-14 01:44:17,975 INFO L231 Difference]: Finished difference. Result has 540 places, 563 transitions, 1134 flow [2025-03-14 01:44:17,976 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=1143, PETRI_DIFFERENCE_MINUEND_FLOW=1130, PETRI_DIFFERENCE_MINUEND_PLACES=538, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=563, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=561, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1134, PETRI_PLACES=540, PETRI_TRANSITIONS=563} [2025-03-14 01:44:17,978 INFO L279 CegarLoopForPetriNet]: 1046 programPoint places, -506 predicate places. [2025-03-14 01:44:17,978 INFO L471 AbstractCegarLoop]: Abstraction has has 540 places, 563 transitions, 1134 flow [2025-03-14 01:44:17,979 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 580.3333333333334) internal successors, (1741), 3 states have internal predecessors, (1741), 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) [2025-03-14 01:44:17,979 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-14 01:44:17,980 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-14 01:44:17,980 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-03-14 01:44:17,980 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [thread1Err62ASSERT_VIOLATIONDATA_RACE, thread1Err61ASSERT_VIOLATIONDATA_RACE, thread1Err60ASSERT_VIOLATIONDATA_RACE, thread1Err59ASSERT_VIOLATIONDATA_RACE (and 966 more)] === [2025-03-14 01:44:17,981 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 01:44:17,981 INFO L85 PathProgramCache]: Analyzing trace with hash 1160787901, now seen corresponding path program 1 times [2025-03-14 01:44:17,981 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 01:44:17,982 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1712171151] [2025-03-14 01:44:17,982 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-14 01:44:17,982 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 01:44:18,003 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 250 statements into 1 equivalence classes. [2025-03-14 01:44:18,015 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 250 of 250 statements. [2025-03-14 01:44:18,015 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-14 01:44:18,015 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-14 01:44:18,061 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-14 01:44:18,061 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 01:44:18,061 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1712171151] [2025-03-14 01:44:18,062 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1712171151] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-14 01:44:18,062 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-14 01:44:18,063 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-14 01:44:18,063 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1560784105] [2025-03-14 01:44:18,063 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-14 01:44:18,063 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-14 01:44:18,063 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 01:44:18,063 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-14 01:44:18,064 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-14 01:44:18,073 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 579 out of 1143 [2025-03-14 01:44:18,077 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 540 places, 563 transitions, 1134 flow. Second operand has 3 states, 3 states have (on average 580.3333333333334) internal successors, (1741), 3 states have internal predecessors, (1741), 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) [2025-03-14 01:44:18,078 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 01:44:18,078 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 579 of 1143 [2025-03-14 01:44:18,078 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 01:44:25,503 INFO L124 PetriNetUnfolderBase]: 119/827 cut-off events. [2025-03-14 01:44:25,503 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2025-03-14 01:44:25,505 INFO L83 FinitePrefix]: Finished finitePrefix Result has 977 conditions, 827 events. 119/827 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 2168 event pairs, 15 based on Foata normal form. 0/734 useless extension candidates. Maximal degree in co-relation 661. Up to 139 conditions per place. [2025-03-14 01:44:25,506 INFO L140 encePairwiseOnDemand]: 1140/1143 looper letters, 32 selfloop transitions, 2 changer transitions 0/562 dead transitions. [2025-03-14 01:44:25,506 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 541 places, 562 transitions, 1200 flow [2025-03-14 01:44:25,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-14 01:44:25,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-14 01:44:25,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1772 transitions. [2025-03-14 01:44:25,513 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5167687372411782 [2025-03-14 01:44:25,513 INFO L175 Difference]: Start difference. First operand has 540 places, 563 transitions, 1134 flow. Second operand 3 states and 1772 transitions. [2025-03-14 01:44:25,513 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 541 places, 562 transitions, 1200 flow [2025-03-14 01:44:25,515 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 539 places, 562 transitions, 1196 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-03-14 01:44:25,518 INFO L231 Difference]: Finished difference. Result has 539 places, 562 transitions, 1132 flow [2025-03-14 01:44:25,520 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=1143, PETRI_DIFFERENCE_MINUEND_FLOW=1128, PETRI_DIFFERENCE_MINUEND_PLACES=537, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=562, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=560, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1132, PETRI_PLACES=539, PETRI_TRANSITIONS=562} [2025-03-14 01:44:25,521 INFO L279 CegarLoopForPetriNet]: 1046 programPoint places, -507 predicate places. [2025-03-14 01:44:25,521 INFO L471 AbstractCegarLoop]: Abstraction has has 539 places, 562 transitions, 1132 flow [2025-03-14 01:44:25,523 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 580.3333333333334) internal successors, (1741), 3 states have internal predecessors, (1741), 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) [2025-03-14 01:44:25,523 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-14 01:44:25,523 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-14 01:44:25,523 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-03-14 01:44:25,523 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [thread1Err62ASSERT_VIOLATIONDATA_RACE, thread1Err61ASSERT_VIOLATIONDATA_RACE, thread1Err60ASSERT_VIOLATIONDATA_RACE, thread1Err59ASSERT_VIOLATIONDATA_RACE (and 966 more)] === [2025-03-14 01:44:25,524 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 01:44:25,524 INFO L85 PathProgramCache]: Analyzing trace with hash -293907783, now seen corresponding path program 1 times [2025-03-14 01:44:25,524 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 01:44:25,524 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1912970808] [2025-03-14 01:44:25,524 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-14 01:44:25,524 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 01:44:25,547 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 282 statements into 1 equivalence classes. [2025-03-14 01:44:25,555 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 282 of 282 statements. [2025-03-14 01:44:25,556 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-14 01:44:25,556 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-14 01:44:25,632 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-14 01:44:25,632 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 01:44:25,632 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1912970808] [2025-03-14 01:44:25,632 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1912970808] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-14 01:44:25,632 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-14 01:44:25,632 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-14 01:44:25,632 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [632826097] [2025-03-14 01:44:25,632 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-14 01:44:25,632 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-14 01:44:25,633 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 01:44:25,633 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-14 01:44:25,633 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-14 01:44:25,642 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 579 out of 1143 [2025-03-14 01:44:25,644 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 539 places, 562 transitions, 1132 flow. Second operand has 3 states, 3 states have (on average 580.3333333333334) internal successors, (1741), 3 states have internal predecessors, (1741), 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) [2025-03-14 01:44:25,644 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 01:44:25,644 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 579 of 1143 [2025-03-14 01:44:25,644 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 01:44:27,949 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2025-03-14 01:44:32,973 INFO L124 PetriNetUnfolderBase]: 119/826 cut-off events. [2025-03-14 01:44:32,973 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2025-03-14 01:44:32,974 INFO L83 FinitePrefix]: Finished finitePrefix Result has 976 conditions, 826 events. 119/826 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 2187 event pairs, 15 based on Foata normal form. 0/734 useless extension candidates. Maximal degree in co-relation 613. Up to 139 conditions per place. [2025-03-14 01:44:32,976 INFO L140 encePairwiseOnDemand]: 1140/1143 looper letters, 32 selfloop transitions, 2 changer transitions 0/561 dead transitions. [2025-03-14 01:44:32,976 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 540 places, 561 transitions, 1198 flow [2025-03-14 01:44:32,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-14 01:44:32,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-14 01:44:32,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1772 transitions. [2025-03-14 01:44:32,982 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5167687372411782 [2025-03-14 01:44:32,982 INFO L175 Difference]: Start difference. First operand has 539 places, 562 transitions, 1132 flow. Second operand 3 states and 1772 transitions. [2025-03-14 01:44:32,982 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 540 places, 561 transitions, 1198 flow [2025-03-14 01:44:32,984 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 538 places, 561 transitions, 1194 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-03-14 01:44:32,988 INFO L231 Difference]: Finished difference. Result has 538 places, 561 transitions, 1130 flow [2025-03-14 01:44:32,988 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=1143, PETRI_DIFFERENCE_MINUEND_FLOW=1126, PETRI_DIFFERENCE_MINUEND_PLACES=536, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=561, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=559, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1130, PETRI_PLACES=538, PETRI_TRANSITIONS=561} [2025-03-14 01:44:32,989 INFO L279 CegarLoopForPetriNet]: 1046 programPoint places, -508 predicate places. [2025-03-14 01:44:32,989 INFO L471 AbstractCegarLoop]: Abstraction has has 538 places, 561 transitions, 1130 flow [2025-03-14 01:44:32,990 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 580.3333333333334) internal successors, (1741), 3 states have internal predecessors, (1741), 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) [2025-03-14 01:44:32,990 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-14 01:44:32,990 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-14 01:44:32,990 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-03-14 01:44:32,990 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [thread1Err62ASSERT_VIOLATIONDATA_RACE, thread1Err61ASSERT_VIOLATIONDATA_RACE, thread1Err60ASSERT_VIOLATIONDATA_RACE, thread1Err59ASSERT_VIOLATIONDATA_RACE (and 966 more)] === [2025-03-14 01:44:32,991 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 01:44:32,991 INFO L85 PathProgramCache]: Analyzing trace with hash -1448638613, now seen corresponding path program 1 times [2025-03-14 01:44:32,991 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 01:44:32,991 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1269035991] [2025-03-14 01:44:32,991 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-14 01:44:32,992 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 01:44:33,026 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 324 statements into 1 equivalence classes. [2025-03-14 01:44:33,045 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 324 of 324 statements. [2025-03-14 01:44:33,046 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-14 01:44:33,046 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-14 01:44:33,121 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-14 01:44:33,121 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 01:44:33,121 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1269035991] [2025-03-14 01:44:33,121 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1269035991] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-14 01:44:33,121 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-14 01:44:33,121 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-14 01:44:33,121 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [78037167] [2025-03-14 01:44:33,121 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-14 01:44:33,122 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-14 01:44:33,122 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 01:44:33,122 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-14 01:44:33,122 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-14 01:44:33,130 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 580 out of 1143 [2025-03-14 01:44:33,132 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 538 places, 561 transitions, 1130 flow. Second operand has 3 states, 3 states have (on average 582.6666666666666) internal successors, (1748), 3 states have internal predecessors, (1748), 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) [2025-03-14 01:44:33,132 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 01:44:33,132 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 580 of 1143 [2025-03-14 01:44:33,132 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand