./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/weaver/parallel-ticket-4.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 48c9605d Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/weaver/parallel-ticket-4.wvr.c -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash ad6b8e6072d4c534442fdbffe3152158d5d2614d02df79d5ef08cd921f0d4751 --- Real Ultimate output --- This is Ultimate 0.3.0-?-48c9605-m [2025-02-08 14:10:30,906 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-08 14:10:30,962 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2025-02-08 14:10:30,965 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-08 14:10:30,966 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-08 14:10:30,978 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-08 14:10:30,978 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-08 14:10:30,978 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-08 14:10:30,979 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-08 14:10:30,979 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-08 14:10:30,979 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-08 14:10:30,979 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-08 14:10:30,979 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-08 14:10:30,979 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-08 14:10:30,979 INFO L153 SettingsManager]: * Use SBE=true [2025-02-08 14:10:30,979 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-08 14:10:30,979 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-08 14:10:30,979 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-08 14:10:30,979 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-08 14:10:30,979 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-08 14:10:30,979 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-08 14:10:30,979 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-08 14:10:30,980 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-08 14:10:30,980 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-08 14:10:30,980 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2025-02-08 14:10:30,980 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-08 14:10:30,980 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-08 14:10:30,980 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-08 14:10:30,980 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-08 14:10:30,980 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-08 14:10:30,980 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-08 14:10:30,980 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-08 14:10:30,980 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-08 14:10:30,980 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-08 14:10:30,980 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 14:10:30,980 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-08 14:10:30,980 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-08 14:10:30,980 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-08 14:10:30,980 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-08 14:10:30,980 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-08 14:10:30,980 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-08 14:10:30,980 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-08 14:10:30,980 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-08 14:10:30,980 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-08 14:10:30,980 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-08 14:10:30,980 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) 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 -> ad6b8e6072d4c534442fdbffe3152158d5d2614d02df79d5ef08cd921f0d4751 [2025-02-08 14:10:31,192 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-08 14:10:31,199 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-08 14:10:31,201 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-08 14:10:31,202 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-08 14:10:31,202 INFO L274 PluginConnector]: CDTParser initialized [2025-02-08 14:10:31,204 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/parallel-ticket-4.wvr.c [2025-02-08 14:10:32,407 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/cfccc753e/eccd374adbeb411b9f951ec2b7f02eef/FLAGf1d293cba [2025-02-08 14:10:32,655 INFO L384 CDTParser]: Found 1 translation units. [2025-02-08 14:10:32,656 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/weaver/parallel-ticket-4.wvr.c [2025-02-08 14:10:32,661 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/cfccc753e/eccd374adbeb411b9f951ec2b7f02eef/FLAGf1d293cba [2025-02-08 14:10:32,974 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/cfccc753e/eccd374adbeb411b9f951ec2b7f02eef [2025-02-08 14:10:32,976 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-08 14:10:32,977 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-08 14:10:32,978 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-08 14:10:32,978 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-08 14:10:32,981 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-08 14:10:32,981 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 02:10:32" (1/1) ... [2025-02-08 14:10:32,982 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@594880c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:10:32, skipping insertion in model container [2025-02-08 14:10:32,982 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 02:10:32" (1/1) ... [2025-02-08 14:10:32,994 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-08 14:10:33,112 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 14:10:33,119 INFO L200 MainTranslator]: Completed pre-run [2025-02-08 14:10:33,138 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 14:10:33,149 INFO L204 MainTranslator]: Completed translation [2025-02-08 14:10:33,149 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:10:33 WrapperNode [2025-02-08 14:10:33,149 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-08 14:10:33,150 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-08 14:10:33,150 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-08 14:10:33,150 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-08 14:10:33,154 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:10:33" (1/1) ... [2025-02-08 14:10:33,158 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:10:33" (1/1) ... [2025-02-08 14:10:33,179 INFO L138 Inliner]: procedures = 20, calls = 17, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 190 [2025-02-08 14:10:33,179 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-08 14:10:33,179 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-08 14:10:33,180 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-08 14:10:33,180 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-08 14:10:33,184 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:10:33" (1/1) ... [2025-02-08 14:10:33,185 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:10:33" (1/1) ... [2025-02-08 14:10:33,190 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:10:33" (1/1) ... [2025-02-08 14:10:33,204 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2025-02-08 14:10:33,204 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:10:33" (1/1) ... [2025-02-08 14:10:33,204 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:10:33" (1/1) ... [2025-02-08 14:10:33,210 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:10:33" (1/1) ... [2025-02-08 14:10:33,210 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:10:33" (1/1) ... [2025-02-08 14:10:33,211 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:10:33" (1/1) ... [2025-02-08 14:10:33,215 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:10:33" (1/1) ... [2025-02-08 14:10:33,216 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-08 14:10:33,217 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-08 14:10:33,217 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-08 14:10:33,217 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-08 14:10:33,217 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:10:33" (1/1) ... [2025-02-08 14:10:33,224 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 14:10:33,235 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:10:33,249 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-02-08 14:10:33,257 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-02-08 14:10:33,275 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-08 14:10:33,275 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2025-02-08 14:10:33,275 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2025-02-08 14:10:33,275 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2025-02-08 14:10:33,275 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2025-02-08 14:10:33,276 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2025-02-08 14:10:33,276 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2025-02-08 14:10:33,276 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2025-02-08 14:10:33,276 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2025-02-08 14:10:33,276 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-08 14:10:33,276 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-08 14:10:33,276 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-08 14:10:33,277 WARN L227 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-02-08 14:10:33,340 INFO L257 CfgBuilder]: Building ICFG [2025-02-08 14:10:33,342 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-08 14:10:33,571 INFO L304 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-02-08 14:10:33,571 INFO L308 CfgBuilder]: Performing block encoding [2025-02-08 14:10:33,720 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-08 14:10:33,721 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-08 14:10:33,721 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 02:10:33 BoogieIcfgContainer [2025-02-08 14:10:33,721 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-08 14:10:33,724 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-08 14:10:33,724 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-08 14:10:33,728 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-08 14:10:33,729 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.02 02:10:32" (1/3) ... [2025-02-08 14:10:33,729 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e969fba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 02:10:33, skipping insertion in model container [2025-02-08 14:10:33,729 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:10:33" (2/3) ... [2025-02-08 14:10:33,729 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e969fba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 02:10:33, skipping insertion in model container [2025-02-08 14:10:33,730 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 02:10:33" (3/3) ... [2025-02-08 14:10:33,731 INFO L128 eAbstractionObserver]: Analyzing ICFG parallel-ticket-4.wvr.c [2025-02-08 14:10:33,743 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-08 14:10:33,745 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG parallel-ticket-4.wvr.c that has 5 procedures, 71 locations, 1 initial locations, 0 loop locations, and 16 error locations. [2025-02-08 14:10:33,745 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-02-08 14:10:33,819 INFO L143 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2025-02-08 14:10:33,847 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 83 places, 73 transitions, 174 flow [2025-02-08 14:10:33,883 INFO L124 PetriNetUnfolderBase]: 3/69 cut-off events. [2025-02-08 14:10:33,887 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2025-02-08 14:10:33,889 INFO L83 FinitePrefix]: Finished finitePrefix Result has 86 conditions, 69 events. 3/69 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 181 event pairs, 0 based on Foata normal form. 0/50 useless extension candidates. Maximal degree in co-relation 60. Up to 2 conditions per place. [2025-02-08 14:10:33,889 INFO L82 GeneralOperation]: Start removeDead. Operand has 83 places, 73 transitions, 174 flow [2025-02-08 14:10:33,893 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 77 places, 67 transitions, 155 flow [2025-02-08 14:10:33,902 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-08 14:10:33,908 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;@7e308cd4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-08 14:10:33,910 INFO L334 AbstractCegarLoop]: Starting to check reachability of 36 error locations. [2025-02-08 14:10:33,916 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-02-08 14:10:33,916 INFO L124 PetriNetUnfolderBase]: 0/12 cut-off events. [2025-02-08 14:10:33,917 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-08 14:10:33,917 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:10:33,919 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:10:33,919 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2025-02-08 14:10:33,923 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:10:33,923 INFO L85 PathProgramCache]: Analyzing trace with hash 1497432203, now seen corresponding path program 1 times [2025-02-08 14:10:33,927 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:10:33,928 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1238847746] [2025-02-08 14:10:33,928 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:10:33,928 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:10:33,975 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-02-08 14:10:33,988 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-02-08 14:10:33,988 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:10:33,989 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:10:34,105 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 14:10:34,106 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:10:34,106 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1238847746] [2025-02-08 14:10:34,106 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1238847746] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:10:34,106 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:10:34,107 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-08 14:10:34,109 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1702513622] [2025-02-08 14:10:34,110 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:10:34,114 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-08 14:10:34,117 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:10:34,146 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-08 14:10:34,147 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-08 14:10:34,148 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 73 [2025-02-08 14:10:34,150 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 77 places, 67 transitions, 155 flow. Second operand has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:10:34,150 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:10:34,150 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 73 [2025-02-08 14:10:34,151 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:10:38,082 INFO L124 PetriNetUnfolderBase]: 57493/76713 cut-off events. [2025-02-08 14:10:38,082 INFO L125 PetriNetUnfolderBase]: For 2424/2424 co-relation queries the response was YES. [2025-02-08 14:10:38,252 INFO L83 FinitePrefix]: Finished finitePrefix Result has 152053 conditions, 76713 events. 57493/76713 cut-off events. For 2424/2424 co-relation queries the response was YES. Maximal size of possible extension queue 3075. Compared 493516 event pairs, 45338 based on Foata normal form. 0/47133 useless extension candidates. Maximal degree in co-relation 144020. Up to 72932 conditions per place. [2025-02-08 14:10:38,717 INFO L140 encePairwiseOnDemand]: 66/73 looper letters, 50 selfloop transitions, 3 changer transitions 0/63 dead transitions. [2025-02-08 14:10:38,717 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 63 transitions, 253 flow [2025-02-08 14:10:38,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-08 14:10:38,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-08 14:10:38,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 99 transitions. [2025-02-08 14:10:38,730 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4520547945205479 [2025-02-08 14:10:38,731 INFO L175 Difference]: Start difference. First operand has 77 places, 67 transitions, 155 flow. Second operand 3 states and 99 transitions. [2025-02-08 14:10:38,731 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 63 transitions, 253 flow [2025-02-08 14:10:38,946 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 63 transitions, 240 flow, removed 0 selfloop flow, removed 7 redundant places. [2025-02-08 14:10:38,950 INFO L231 Difference]: Finished difference. Result has 68 places, 63 transitions, 140 flow [2025-02-08 14:10:38,951 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=73, PETRI_DIFFERENCE_MINUEND_FLOW=134, PETRI_DIFFERENCE_MINUEND_PLACES=66, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=63, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=60, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=140, PETRI_PLACES=68, PETRI_TRANSITIONS=63} [2025-02-08 14:10:38,954 INFO L279 CegarLoopForPetriNet]: 77 programPoint places, -9 predicate places. [2025-02-08 14:10:38,955 INFO L471 AbstractCegarLoop]: Abstraction has has 68 places, 63 transitions, 140 flow [2025-02-08 14:10:38,956 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:10:38,956 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:10:38,956 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:10:38,956 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-02-08 14:10:38,956 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2025-02-08 14:10:38,957 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:10:38,957 INFO L85 PathProgramCache]: Analyzing trace with hash 1497432204, now seen corresponding path program 1 times [2025-02-08 14:10:38,957 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:10:38,957 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1555914126] [2025-02-08 14:10:38,957 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:10:38,957 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:10:38,965 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-02-08 14:10:38,973 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-02-08 14:10:38,975 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:10:38,975 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:10:39,048 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 14:10:39,048 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:10:39,048 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1555914126] [2025-02-08 14:10:39,048 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1555914126] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:10:39,048 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:10:39,049 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-08 14:10:39,049 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1276904028] [2025-02-08 14:10:39,049 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:10:39,049 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-08 14:10:39,050 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:10:39,050 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-08 14:10:39,050 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-08 14:10:39,052 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 73 [2025-02-08 14:10:39,053 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 63 transitions, 140 flow. Second operand has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:10:39,053 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:10:39,053 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 73 [2025-02-08 14:10:39,053 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:10:41,877 INFO L124 PetriNetUnfolderBase]: 56995/75965 cut-off events. [2025-02-08 14:10:41,878 INFO L125 PetriNetUnfolderBase]: For 636/636 co-relation queries the response was YES. [2025-02-08 14:10:41,946 INFO L83 FinitePrefix]: Finished finitePrefix Result has 149880 conditions, 75965 events. 56995/75965 cut-off events. For 636/636 co-relation queries the response was YES. Maximal size of possible extension queue 3176. Compared 483793 event pairs, 35356 based on Foata normal form. 0/47582 useless extension candidates. Maximal degree in co-relation 149856. Up to 72370 conditions per place. [2025-02-08 14:10:42,156 INFO L140 encePairwiseOnDemand]: 62/73 looper letters, 57 selfloop transitions, 7 changer transitions 0/74 dead transitions. [2025-02-08 14:10:42,156 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 74 transitions, 294 flow [2025-02-08 14:10:42,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-08 14:10:42,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-08 14:10:42,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 110 transitions. [2025-02-08 14:10:42,158 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.502283105022831 [2025-02-08 14:10:42,158 INFO L175 Difference]: Start difference. First operand has 68 places, 63 transitions, 140 flow. Second operand 3 states and 110 transitions. [2025-02-08 14:10:42,158 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 74 transitions, 294 flow [2025-02-08 14:10:42,159 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 74 transitions, 288 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-02-08 14:10:42,160 INFO L231 Difference]: Finished difference. Result has 69 places, 67 transitions, 179 flow [2025-02-08 14:10:42,160 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=73, PETRI_DIFFERENCE_MINUEND_FLOW=134, PETRI_DIFFERENCE_MINUEND_PLACES=66, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=63, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=56, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=179, PETRI_PLACES=69, PETRI_TRANSITIONS=67} [2025-02-08 14:10:42,161 INFO L279 CegarLoopForPetriNet]: 77 programPoint places, -8 predicate places. [2025-02-08 14:10:42,161 INFO L471 AbstractCegarLoop]: Abstraction has has 69 places, 67 transitions, 179 flow [2025-02-08 14:10:42,161 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:10:42,161 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:10:42,161 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:10:42,161 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-02-08 14:10:42,161 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2025-02-08 14:10:42,162 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:10:42,162 INFO L85 PathProgramCache]: Analyzing trace with hash -2094248467, now seen corresponding path program 1 times [2025-02-08 14:10:42,162 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:10:42,162 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1780123207] [2025-02-08 14:10:42,162 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:10:42,162 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:10:42,168 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 16 statements into 1 equivalence classes. [2025-02-08 14:10:42,173 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 16 of 16 statements. [2025-02-08 14:10:42,173 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:10:42,173 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:10:42,257 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 14:10:42,258 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:10:42,258 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1780123207] [2025-02-08 14:10:42,258 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1780123207] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:10:42,258 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:10:42,258 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-08 14:10:42,258 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [35839816] [2025-02-08 14:10:42,258 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:10:42,258 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 14:10:42,258 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:10:42,259 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 14:10:42,259 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-02-08 14:10:42,259 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 73 [2025-02-08 14:10:42,262 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 67 transitions, 179 flow. Second operand has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:10:42,262 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:10:42,262 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 73 [2025-02-08 14:10:42,263 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:10:44,890 INFO L124 PetriNetUnfolderBase]: 54876/73305 cut-off events. [2025-02-08 14:10:44,890 INFO L125 PetriNetUnfolderBase]: For 5215/5215 co-relation queries the response was YES. [2025-02-08 14:10:44,983 INFO L83 FinitePrefix]: Finished finitePrefix Result has 155476 conditions, 73305 events. 54876/73305 cut-off events. For 5215/5215 co-relation queries the response was YES. Maximal size of possible extension queue 3179. Compared 469868 event pairs, 20100 based on Foata normal form. 0/46639 useless extension candidates. Maximal degree in co-relation 141283. Up to 69383 conditions per place. [2025-02-08 14:10:45,208 INFO L140 encePairwiseOnDemand]: 62/73 looper letters, 88 selfloop transitions, 11 changer transitions 0/109 dead transitions. [2025-02-08 14:10:45,209 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 109 transitions, 477 flow [2025-02-08 14:10:45,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-08 14:10:45,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-02-08 14:10:45,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 159 transitions. [2025-02-08 14:10:45,210 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5445205479452054 [2025-02-08 14:10:45,210 INFO L175 Difference]: Start difference. First operand has 69 places, 67 transitions, 179 flow. Second operand 4 states and 159 transitions. [2025-02-08 14:10:45,210 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 109 transitions, 477 flow [2025-02-08 14:10:45,211 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 109 transitions, 470 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-02-08 14:10:45,212 INFO L231 Difference]: Finished difference. Result has 72 places, 71 transitions, 234 flow [2025-02-08 14:10:45,213 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=73, PETRI_DIFFERENCE_MINUEND_FLOW=172, PETRI_DIFFERENCE_MINUEND_PLACES=68, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=67, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=56, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=234, PETRI_PLACES=72, PETRI_TRANSITIONS=71} [2025-02-08 14:10:45,213 INFO L279 CegarLoopForPetriNet]: 77 programPoint places, -5 predicate places. [2025-02-08 14:10:45,213 INFO L471 AbstractCegarLoop]: Abstraction has has 72 places, 71 transitions, 234 flow [2025-02-08 14:10:45,213 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:10:45,214 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:10:45,214 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:10:45,214 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-02-08 14:10:45,214 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2025-02-08 14:10:45,214 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:10:45,214 INFO L85 PathProgramCache]: Analyzing trace with hash -647294705, now seen corresponding path program 1 times [2025-02-08 14:10:45,215 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:10:45,215 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2127509532] [2025-02-08 14:10:45,215 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:10:45,215 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:10:45,220 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 16 statements into 1 equivalence classes. [2025-02-08 14:10:45,224 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 16 of 16 statements. [2025-02-08 14:10:45,224 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:10:45,224 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:10:45,264 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 14:10:45,264 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:10:45,264 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2127509532] [2025-02-08 14:10:45,264 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2127509532] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:10:45,264 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:10:45,264 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-08 14:10:45,265 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1710531087] [2025-02-08 14:10:45,265 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:10:45,265 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-08 14:10:45,265 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:10:45,265 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-08 14:10:45,266 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-08 14:10:45,266 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 73 [2025-02-08 14:10:45,266 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 71 transitions, 234 flow. Second operand has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:10:45,266 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:10:45,266 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 73 [2025-02-08 14:10:45,266 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:10:46,857 INFO L124 PetriNetUnfolderBase]: 33046/44877 cut-off events. [2025-02-08 14:10:46,857 INFO L125 PetriNetUnfolderBase]: For 11606/11606 co-relation queries the response was YES. [2025-02-08 14:10:46,924 INFO L83 FinitePrefix]: Finished finitePrefix Result has 104386 conditions, 44877 events. 33046/44877 cut-off events. For 11606/11606 co-relation queries the response was YES. Maximal size of possible extension queue 1940. Compared 284324 event pairs, 24584 based on Foata normal form. 0/31904 useless extension candidates. Maximal degree in co-relation 60527. Up to 42461 conditions per place. [2025-02-08 14:10:47,068 INFO L140 encePairwiseOnDemand]: 66/73 looper letters, 54 selfloop transitions, 3 changer transitions 0/67 dead transitions. [2025-02-08 14:10:47,069 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 67 transitions, 340 flow [2025-02-08 14:10:47,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-08 14:10:47,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-08 14:10:47,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 95 transitions. [2025-02-08 14:10:47,070 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4337899543378995 [2025-02-08 14:10:47,070 INFO L175 Difference]: Start difference. First operand has 72 places, 71 transitions, 234 flow. Second operand 3 states and 95 transitions. [2025-02-08 14:10:47,070 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 67 transitions, 340 flow [2025-02-08 14:10:47,071 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 67 transitions, 318 flow, removed 4 selfloop flow, removed 2 redundant places. [2025-02-08 14:10:47,072 INFO L231 Difference]: Finished difference. Result has 68 places, 67 transitions, 210 flow [2025-02-08 14:10:47,072 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=73, PETRI_DIFFERENCE_MINUEND_FLOW=204, PETRI_DIFFERENCE_MINUEND_PLACES=66, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=67, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=64, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=210, PETRI_PLACES=68, PETRI_TRANSITIONS=67} [2025-02-08 14:10:47,072 INFO L279 CegarLoopForPetriNet]: 77 programPoint places, -9 predicate places. [2025-02-08 14:10:47,072 INFO L471 AbstractCegarLoop]: Abstraction has has 68 places, 67 transitions, 210 flow [2025-02-08 14:10:47,073 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:10:47,073 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:10:47,073 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:10:47,073 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-02-08 14:10:47,073 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2025-02-08 14:10:47,073 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:10:47,073 INFO L85 PathProgramCache]: Analyzing trace with hash -647294704, now seen corresponding path program 1 times [2025-02-08 14:10:47,073 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:10:47,074 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [204574745] [2025-02-08 14:10:47,074 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:10:47,074 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:10:47,078 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 16 statements into 1 equivalence classes. [2025-02-08 14:10:47,081 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 16 of 16 statements. [2025-02-08 14:10:47,081 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:10:47,081 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:10:47,104 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 14:10:47,104 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:10:47,104 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [204574745] [2025-02-08 14:10:47,105 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [204574745] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:10:47,105 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:10:47,105 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-08 14:10:47,105 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2114534675] [2025-02-08 14:10:47,105 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:10:47,105 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-08 14:10:47,105 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:10:47,105 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-08 14:10:47,106 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-08 14:10:47,106 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 73 [2025-02-08 14:10:47,106 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 67 transitions, 210 flow. Second operand has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:10:47,106 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:10:47,106 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 73 [2025-02-08 14:10:47,106 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:10:48,865 INFO L124 PetriNetUnfolderBase]: 29201/38504 cut-off events. [2025-02-08 14:10:48,866 INFO L125 PetriNetUnfolderBase]: For 10319/10319 co-relation queries the response was YES. [2025-02-08 14:10:48,916 INFO L83 FinitePrefix]: Finished finitePrefix Result has 90647 conditions, 38504 events. 29201/38504 cut-off events. For 10319/10319 co-relation queries the response was YES. Maximal size of possible extension queue 1618. Compared 216358 event pairs, 7283 based on Foata normal form. 0/29410 useless extension candidates. Maximal degree in co-relation 90618. Up to 33272 conditions per place. [2025-02-08 14:10:49,034 INFO L140 encePairwiseOnDemand]: 62/73 looper letters, 82 selfloop transitions, 7 changer transitions 0/99 dead transitions. [2025-02-08 14:10:49,035 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 99 transitions, 496 flow [2025-02-08 14:10:49,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-08 14:10:49,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-08 14:10:49,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 123 transitions. [2025-02-08 14:10:49,036 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5616438356164384 [2025-02-08 14:10:49,036 INFO L175 Difference]: Start difference. First operand has 68 places, 67 transitions, 210 flow. Second operand 3 states and 123 transitions. [2025-02-08 14:10:49,036 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 99 transitions, 496 flow [2025-02-08 14:10:49,037 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 99 transitions, 490 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-02-08 14:10:49,038 INFO L231 Difference]: Finished difference. Result has 69 places, 71 transitions, 249 flow [2025-02-08 14:10:49,038 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=73, PETRI_DIFFERENCE_MINUEND_FLOW=204, PETRI_DIFFERENCE_MINUEND_PLACES=66, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=67, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=60, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=249, PETRI_PLACES=69, PETRI_TRANSITIONS=71} [2025-02-08 14:10:49,038 INFO L279 CegarLoopForPetriNet]: 77 programPoint places, -8 predicate places. [2025-02-08 14:10:49,038 INFO L471 AbstractCegarLoop]: Abstraction has has 69 places, 71 transitions, 249 flow [2025-02-08 14:10:49,039 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:10:49,039 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:10:49,039 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] [2025-02-08 14:10:49,039 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-02-08 14:10:49,039 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting thread3Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2025-02-08 14:10:49,039 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:10:49,039 INFO L85 PathProgramCache]: Analyzing trace with hash 1332738947, now seen corresponding path program 1 times [2025-02-08 14:10:49,039 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:10:49,040 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [297102839] [2025-02-08 14:10:49,040 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:10:49,040 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:10:49,047 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 20 statements into 1 equivalence classes. [2025-02-08 14:10:49,055 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 20 of 20 statements. [2025-02-08 14:10:49,055 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:10:49,055 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:10:49,131 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 14:10:49,132 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:10:49,132 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [297102839] [2025-02-08 14:10:49,132 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [297102839] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:10:49,132 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:10:49,132 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-08 14:10:49,132 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [189447382] [2025-02-08 14:10:49,132 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:10:49,133 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-08 14:10:49,133 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:10:49,133 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-08 14:10:49,133 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2025-02-08 14:10:49,133 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 73 [2025-02-08 14:10:49,133 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 71 transitions, 249 flow. Second operand has 5 states, 5 states have (on average 17.4) internal successors, (87), 5 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:10:49,133 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:10:49,133 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 73 [2025-02-08 14:10:49,133 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:10:50,273 INFO L124 PetriNetUnfolderBase]: 22166/30561 cut-off events. [2025-02-08 14:10:50,273 INFO L125 PetriNetUnfolderBase]: For 10080/10080 co-relation queries the response was YES. [2025-02-08 14:10:50,329 INFO L83 FinitePrefix]: Finished finitePrefix Result has 78169 conditions, 30561 events. 22166/30561 cut-off events. For 10080/10080 co-relation queries the response was YES. Maximal size of possible extension queue 1446. Compared 186472 event pairs, 4361 based on Foata normal form. 0/24197 useless extension candidates. Maximal degree in co-relation 71447. Up to 27029 conditions per place. [2025-02-08 14:10:50,430 INFO L140 encePairwiseOnDemand]: 62/73 looper letters, 110 selfloop transitions, 15 changer transitions 0/135 dead transitions. [2025-02-08 14:10:50,430 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 73 places, 135 transitions, 695 flow [2025-02-08 14:10:50,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-08 14:10:50,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-02-08 14:10:50,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 191 transitions. [2025-02-08 14:10:50,432 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5232876712328767 [2025-02-08 14:10:50,432 INFO L175 Difference]: Start difference. First operand has 69 places, 71 transitions, 249 flow. Second operand 5 states and 191 transitions. [2025-02-08 14:10:50,432 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 73 places, 135 transitions, 695 flow [2025-02-08 14:10:50,441 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 72 places, 135 transitions, 680 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-02-08 14:10:50,442 INFO L231 Difference]: Finished difference. Result has 73 places, 75 transitions, 320 flow [2025-02-08 14:10:50,442 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=73, PETRI_DIFFERENCE_MINUEND_FLOW=242, PETRI_DIFFERENCE_MINUEND_PLACES=68, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=71, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=56, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=320, PETRI_PLACES=73, PETRI_TRANSITIONS=75} [2025-02-08 14:10:50,443 INFO L279 CegarLoopForPetriNet]: 77 programPoint places, -4 predicate places. [2025-02-08 14:10:50,443 INFO L471 AbstractCegarLoop]: Abstraction has has 73 places, 75 transitions, 320 flow [2025-02-08 14:10:50,443 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.4) internal successors, (87), 5 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:10:50,443 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:10:50,443 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] [2025-02-08 14:10:50,443 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-02-08 14:10:50,444 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2025-02-08 14:10:50,444 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:10:50,444 INFO L85 PathProgramCache]: Analyzing trace with hash 1651117578, now seen corresponding path program 1 times [2025-02-08 14:10:50,444 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:10:50,444 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [763143117] [2025-02-08 14:10:50,444 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:10:50,444 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:10:50,449 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 23 statements into 1 equivalence classes. [2025-02-08 14:10:50,455 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 23 of 23 statements. [2025-02-08 14:10:50,456 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:10:50,456 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:10:50,558 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 14:10:50,558 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:10:50,559 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [763143117] [2025-02-08 14:10:50,559 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [763143117] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:10:50,559 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:10:50,559 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-08 14:10:50,559 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1971709039] [2025-02-08 14:10:50,559 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:10:50,559 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 14:10:50,560 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:10:50,560 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 14:10:50,560 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-02-08 14:10:50,560 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 73 [2025-02-08 14:10:50,560 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 73 places, 75 transitions, 320 flow. Second operand has 4 states, 4 states have (on average 19.0) internal successors, (76), 4 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:10:50,560 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:10:50,560 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 73 [2025-02-08 14:10:50,561 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:10:51,392 INFO L124 PetriNetUnfolderBase]: 18081/24232 cut-off events. [2025-02-08 14:10:51,392 INFO L125 PetriNetUnfolderBase]: For 16738/16851 co-relation queries the response was YES. [2025-02-08 14:10:51,433 INFO L83 FinitePrefix]: Finished finitePrefix Result has 66220 conditions, 24232 events. 18081/24232 cut-off events. For 16738/16851 co-relation queries the response was YES. Maximal size of possible extension queue 991. Compared 132634 event pairs, 2605 based on Foata normal form. 100/21231 useless extension candidates. Maximal degree in co-relation 24268. Up to 12537 conditions per place. [2025-02-08 14:10:51,513 INFO L140 encePairwiseOnDemand]: 62/73 looper letters, 121 selfloop transitions, 11 changer transitions 0/142 dead transitions. [2025-02-08 14:10:51,513 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 76 places, 142 transitions, 906 flow [2025-02-08 14:10:51,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-08 14:10:51,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-02-08 14:10:51,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 168 transitions. [2025-02-08 14:10:51,515 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5753424657534246 [2025-02-08 14:10:51,515 INFO L175 Difference]: Start difference. First operand has 73 places, 75 transitions, 320 flow. Second operand 4 states and 168 transitions. [2025-02-08 14:10:51,515 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 76 places, 142 transitions, 906 flow [2025-02-08 14:10:51,519 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 73 places, 142 transitions, 824 flow, removed 24 selfloop flow, removed 3 redundant places. [2025-02-08 14:10:51,520 INFO L231 Difference]: Finished difference. Result has 74 places, 79 transitions, 344 flow [2025-02-08 14:10:51,520 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=73, PETRI_DIFFERENCE_MINUEND_FLOW=282, PETRI_DIFFERENCE_MINUEND_PLACES=70, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=75, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=64, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=344, PETRI_PLACES=74, PETRI_TRANSITIONS=79} [2025-02-08 14:10:51,520 INFO L279 CegarLoopForPetriNet]: 77 programPoint places, -3 predicate places. [2025-02-08 14:10:51,521 INFO L471 AbstractCegarLoop]: Abstraction has has 74 places, 79 transitions, 344 flow [2025-02-08 14:10:51,521 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.0) internal successors, (76), 4 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:10:51,521 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:10:51,521 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] [2025-02-08 14:10:51,521 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-02-08 14:10:51,521 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting thread4Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2025-02-08 14:10:51,521 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:10:51,521 INFO L85 PathProgramCache]: Analyzing trace with hash -652450582, now seen corresponding path program 1 times [2025-02-08 14:10:51,522 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:10:51,522 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [367773455] [2025-02-08 14:10:51,522 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:10:51,522 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:10:51,526 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 24 statements into 1 equivalence classes. [2025-02-08 14:10:51,530 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 24 of 24 statements. [2025-02-08 14:10:51,530 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:10:51,530 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:10:51,597 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 14:10:51,597 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:10:51,597 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [367773455] [2025-02-08 14:10:51,597 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [367773455] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:10:51,597 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:10:51,597 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-08 14:10:51,597 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [460914725] [2025-02-08 14:10:51,597 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:10:51,597 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-08 14:10:51,598 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:10:51,598 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-08 14:10:51,598 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-02-08 14:10:51,598 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 73 [2025-02-08 14:10:51,598 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 79 transitions, 344 flow. Second operand has 6 states, 6 states have (on average 17.333333333333332) internal successors, (104), 6 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:10:51,598 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:10:51,598 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 73 [2025-02-08 14:10:51,598 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:10:52,556 INFO L124 PetriNetUnfolderBase]: 12122/17359 cut-off events. [2025-02-08 14:10:52,557 INFO L125 PetriNetUnfolderBase]: For 17142/17142 co-relation queries the response was YES. [2025-02-08 14:10:52,585 INFO L83 FinitePrefix]: Finished finitePrefix Result has 47976 conditions, 17359 events. 12122/17359 cut-off events. For 17142/17142 co-relation queries the response was YES. Maximal size of possible extension queue 617. Compared 101749 event pairs, 563 based on Foata normal form. 0/15651 useless extension candidates. Maximal degree in co-relation 42262. Up to 8953 conditions per place. [2025-02-08 14:10:52,648 INFO L140 encePairwiseOnDemand]: 62/73 looper letters, 135 selfloop transitions, 19 changer transitions 0/164 dead transitions. [2025-02-08 14:10:52,648 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 164 transitions, 945 flow [2025-02-08 14:10:52,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-08 14:10:52,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-02-08 14:10:52,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 222 transitions. [2025-02-08 14:10:52,649 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5068493150684932 [2025-02-08 14:10:52,649 INFO L175 Difference]: Start difference. First operand has 74 places, 79 transitions, 344 flow. Second operand 6 states and 222 transitions. [2025-02-08 14:10:52,650 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 164 transitions, 945 flow [2025-02-08 14:10:52,655 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 73 places, 164 transitions, 887 flow, removed 12 selfloop flow, removed 2 redundant places. [2025-02-08 14:10:52,657 INFO L231 Difference]: Finished difference. Result has 73 places, 75 transitions, 328 flow [2025-02-08 14:10:52,657 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=73, PETRI_DIFFERENCE_MINUEND_FLOW=290, PETRI_DIFFERENCE_MINUEND_PLACES=68, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=75, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=56, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=328, PETRI_PLACES=73, PETRI_TRANSITIONS=75} [2025-02-08 14:10:52,657 INFO L279 CegarLoopForPetriNet]: 77 programPoint places, -4 predicate places. [2025-02-08 14:10:52,657 INFO L471 AbstractCegarLoop]: Abstraction has has 73 places, 75 transitions, 328 flow [2025-02-08 14:10:52,658 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 17.333333333333332) internal successors, (104), 6 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:10:52,658 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:10:52,658 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:10:52,658 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-02-08 14:10:52,658 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2025-02-08 14:10:52,658 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:10:52,658 INFO L85 PathProgramCache]: Analyzing trace with hash -1236081824, now seen corresponding path program 1 times [2025-02-08 14:10:52,658 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:10:52,658 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [575474352] [2025-02-08 14:10:52,658 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:10:52,659 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:10:52,664 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 31 statements into 1 equivalence classes. [2025-02-08 14:10:52,667 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 31 of 31 statements. [2025-02-08 14:10:52,667 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:10:52,667 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:10:52,700 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 14:10:52,701 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:10:52,701 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [575474352] [2025-02-08 14:10:52,701 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [575474352] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:10:52,701 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:10:52,701 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-08 14:10:52,701 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1399850545] [2025-02-08 14:10:52,701 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:10:52,701 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-08 14:10:52,701 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:10:52,702 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-08 14:10:52,702 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-08 14:10:52,707 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 73 [2025-02-08 14:10:52,707 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 73 places, 75 transitions, 328 flow. Second operand has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:10:52,707 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:10:52,707 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 73 [2025-02-08 14:10:52,707 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:10:53,383 INFO L124 PetriNetUnfolderBase]: 14110/19601 cut-off events. [2025-02-08 14:10:53,384 INFO L125 PetriNetUnfolderBase]: For 23293/23313 co-relation queries the response was YES. [2025-02-08 14:10:53,410 INFO L83 FinitePrefix]: Finished finitePrefix Result has 55529 conditions, 19601 events. 14110/19601 cut-off events. For 23293/23313 co-relation queries the response was YES. Maximal size of possible extension queue 696. Compared 113508 event pairs, 7249 based on Foata normal form. 1661/19780 useless extension candidates. Maximal degree in co-relation 17014. Up to 15963 conditions per place. [2025-02-08 14:10:53,465 INFO L140 encePairwiseOnDemand]: 65/73 looper letters, 100 selfloop transitions, 5 changer transitions 0/112 dead transitions. [2025-02-08 14:10:53,465 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 112 transitions, 712 flow [2025-02-08 14:10:53,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-08 14:10:53,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-08 14:10:53,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 109 transitions. [2025-02-08 14:10:53,466 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4977168949771689 [2025-02-08 14:10:53,466 INFO L175 Difference]: Start difference. First operand has 73 places, 75 transitions, 328 flow. Second operand 3 states and 109 transitions. [2025-02-08 14:10:53,466 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 112 transitions, 712 flow [2025-02-08 14:10:53,486 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 112 transitions, 596 flow, removed 21 selfloop flow, removed 7 redundant places. [2025-02-08 14:10:53,487 INFO L231 Difference]: Finished difference. Result has 69 places, 75 transitions, 272 flow [2025-02-08 14:10:53,487 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=73, PETRI_DIFFERENCE_MINUEND_FLOW=251, PETRI_DIFFERENCE_MINUEND_PLACES=66, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=75, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=70, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=272, PETRI_PLACES=69, PETRI_TRANSITIONS=75} [2025-02-08 14:10:53,488 INFO L279 CegarLoopForPetriNet]: 77 programPoint places, -8 predicate places. [2025-02-08 14:10:53,488 INFO L471 AbstractCegarLoop]: Abstraction has has 69 places, 75 transitions, 272 flow [2025-02-08 14:10:53,488 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:10:53,488 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:10:53,488 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] [2025-02-08 14:10:53,488 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-02-08 14:10:53,488 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2025-02-08 14:10:53,488 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:10:53,489 INFO L85 PathProgramCache]: Analyzing trace with hash 2110560513, now seen corresponding path program 1 times [2025-02-08 14:10:53,489 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:10:53,489 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [366303309] [2025-02-08 14:10:53,489 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:10:53,489 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:10:53,493 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 30 statements into 1 equivalence classes. [2025-02-08 14:10:53,497 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 30 of 30 statements. [2025-02-08 14:10:53,497 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:10:53,497 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:10:53,542 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 14:10:53,543 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:10:53,543 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [366303309] [2025-02-08 14:10:53,543 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [366303309] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:10:53,543 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:10:53,543 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-08 14:10:53,543 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [492922135] [2025-02-08 14:10:53,543 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:10:53,543 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-08 14:10:53,544 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:10:53,544 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-08 14:10:53,544 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2025-02-08 14:10:53,544 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 73 [2025-02-08 14:10:53,544 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 75 transitions, 272 flow. Second operand has 5 states, 5 states have (on average 19.0) internal successors, (95), 5 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:10:53,544 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:10:53,544 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 73 [2025-02-08 14:10:53,544 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:10:54,131 INFO L124 PetriNetUnfolderBase]: 12292/16954 cut-off events. [2025-02-08 14:10:54,131 INFO L125 PetriNetUnfolderBase]: For 10842/11078 co-relation queries the response was YES. [2025-02-08 14:10:54,153 INFO L83 FinitePrefix]: Finished finitePrefix Result has 42959 conditions, 16954 events. 12292/16954 cut-off events. For 10842/11078 co-relation queries the response was YES. Maximal size of possible extension queue 633. Compared 93000 event pairs, 1243 based on Foata normal form. 216/16708 useless extension candidates. Maximal degree in co-relation 11833. Up to 6246 conditions per place. [2025-02-08 14:10:54,197 INFO L140 encePairwiseOnDemand]: 62/73 looper letters, 127 selfloop transitions, 15 changer transitions 4/156 dead transitions. [2025-02-08 14:10:54,198 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 73 places, 156 transitions, 808 flow [2025-02-08 14:10:54,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-08 14:10:54,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-02-08 14:10:54,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 196 transitions. [2025-02-08 14:10:54,199 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.536986301369863 [2025-02-08 14:10:54,199 INFO L175 Difference]: Start difference. First operand has 69 places, 75 transitions, 272 flow. Second operand 5 states and 196 transitions. [2025-02-08 14:10:54,199 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 73 places, 156 transitions, 808 flow [2025-02-08 14:10:54,202 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 156 transitions, 786 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-02-08 14:10:54,204 INFO L231 Difference]: Finished difference. Result has 72 places, 75 transitions, 308 flow [2025-02-08 14:10:54,204 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=73, PETRI_DIFFERENCE_MINUEND_FLOW=262, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=75, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=60, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=308, PETRI_PLACES=72, PETRI_TRANSITIONS=75} [2025-02-08 14:10:54,204 INFO L279 CegarLoopForPetriNet]: 77 programPoint places, -5 predicate places. [2025-02-08 14:10:54,204 INFO L471 AbstractCegarLoop]: Abstraction has has 72 places, 75 transitions, 308 flow [2025-02-08 14:10:54,204 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.0) internal successors, (95), 5 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:10:54,204 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:10:54,205 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] [2025-02-08 14:10:54,205 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2025-02-08 14:10:54,205 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting thread4Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2025-02-08 14:10:54,205 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:10:54,205 INFO L85 PathProgramCache]: Analyzing trace with hash -101195061, now seen corresponding path program 1 times [2025-02-08 14:10:54,205 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:10:54,205 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1576219857] [2025-02-08 14:10:54,205 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:10:54,205 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:10:54,210 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 37 statements into 1 equivalence classes. [2025-02-08 14:10:54,216 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 37 of 37 statements. [2025-02-08 14:10:54,216 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:10:54,216 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:10:54,283 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 14:10:54,283 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:10:54,283 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1576219857] [2025-02-08 14:10:54,283 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1576219857] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:10:54,283 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:10:54,283 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-08 14:10:54,283 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1542923422] [2025-02-08 14:10:54,283 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:10:54,283 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-08 14:10:54,283 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:10:54,284 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-08 14:10:54,284 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-02-08 14:10:54,284 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 73 [2025-02-08 14:10:54,284 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 75 transitions, 308 flow. Second operand has 6 states, 6 states have (on average 19.0) internal successors, (114), 6 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:10:54,284 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:10:54,284 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 73 [2025-02-08 14:10:54,284 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:10:54,890 INFO L124 PetriNetUnfolderBase]: 11857/16392 cut-off events. [2025-02-08 14:10:54,890 INFO L125 PetriNetUnfolderBase]: For 19679/19915 co-relation queries the response was YES. [2025-02-08 14:10:54,914 INFO L83 FinitePrefix]: Finished finitePrefix Result has 44868 conditions, 16392 events. 11857/16392 cut-off events. For 19679/19915 co-relation queries the response was YES. Maximal size of possible extension queue 633. Compared 90462 event pairs, 1178 based on Foata normal form. 362/16438 useless extension candidates. Maximal degree in co-relation 21383. Up to 6246 conditions per place. [2025-02-08 14:10:54,927 INFO L140 encePairwiseOnDemand]: 62/73 looper letters, 0 selfloop transitions, 0 changer transitions 148/148 dead transitions. [2025-02-08 14:10:54,927 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 73 places, 148 transitions, 760 flow [2025-02-08 14:10:54,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-08 14:10:54,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-02-08 14:10:54,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 202 transitions. [2025-02-08 14:10:54,928 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4611872146118721 [2025-02-08 14:10:54,928 INFO L175 Difference]: Start difference. First operand has 72 places, 75 transitions, 308 flow. Second operand 6 states and 202 transitions. [2025-02-08 14:10:54,928 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 73 places, 148 transitions, 760 flow [2025-02-08 14:10:55,202 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 148 transitions, 699 flow, removed 8 selfloop flow, removed 6 redundant places. [2025-02-08 14:10:55,203 INFO L231 Difference]: Finished difference. Result has 67 places, 0 transitions, 0 flow [2025-02-08 14:10:55,203 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=73, PETRI_DIFFERENCE_MINUEND_FLOW=215, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=71, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=71, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=67, PETRI_TRANSITIONS=0} [2025-02-08 14:10:55,203 INFO L279 CegarLoopForPetriNet]: 77 programPoint places, -10 predicate places. [2025-02-08 14:10:55,203 INFO L471 AbstractCegarLoop]: Abstraction has has 67 places, 0 transitions, 0 flow [2025-02-08 14:10:55,203 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 19.0) internal successors, (114), 6 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:10:55,206 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (35 of 36 remaining) [2025-02-08 14:10:55,206 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (34 of 36 remaining) [2025-02-08 14:10:55,206 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (33 of 36 remaining) [2025-02-08 14:10:55,206 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (32 of 36 remaining) [2025-02-08 14:10:55,206 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (31 of 36 remaining) [2025-02-08 14:10:55,206 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (30 of 36 remaining) [2025-02-08 14:10:55,206 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (29 of 36 remaining) [2025-02-08 14:10:55,206 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (28 of 36 remaining) [2025-02-08 14:10:55,206 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (27 of 36 remaining) [2025-02-08 14:10:55,206 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (26 of 36 remaining) [2025-02-08 14:10:55,206 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (25 of 36 remaining) [2025-02-08 14:10:55,206 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (24 of 36 remaining) [2025-02-08 14:10:55,206 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (23 of 36 remaining) [2025-02-08 14:10:55,206 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (22 of 36 remaining) [2025-02-08 14:10:55,206 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (21 of 36 remaining) [2025-02-08 14:10:55,206 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (20 of 36 remaining) [2025-02-08 14:10:55,206 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread4Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 36 remaining) [2025-02-08 14:10:55,206 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread4Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 36 remaining) [2025-02-08 14:10:55,206 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread4Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 36 remaining) [2025-02-08 14:10:55,206 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread4Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 36 remaining) [2025-02-08 14:10:55,206 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 36 remaining) [2025-02-08 14:10:55,207 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 36 remaining) [2025-02-08 14:10:55,207 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 36 remaining) [2025-02-08 14:10:55,207 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 36 remaining) [2025-02-08 14:10:55,207 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 36 remaining) [2025-02-08 14:10:55,207 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 36 remaining) [2025-02-08 14:10:55,207 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 36 remaining) [2025-02-08 14:10:55,207 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 36 remaining) [2025-02-08 14:10:55,207 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 36 remaining) [2025-02-08 14:10:55,207 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 36 remaining) [2025-02-08 14:10:55,207 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 36 remaining) [2025-02-08 14:10:55,207 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 36 remaining) [2025-02-08 14:10:55,207 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread4Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 36 remaining) [2025-02-08 14:10:55,207 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread4Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 36 remaining) [2025-02-08 14:10:55,207 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread4Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 36 remaining) [2025-02-08 14:10:55,207 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread4Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 36 remaining) [2025-02-08 14:10:55,207 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2025-02-08 14:10:55,207 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:10:55,211 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-02-08 14:10:55,211 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-02-08 14:10:55,214 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.02 02:10:55 BasicIcfg [2025-02-08 14:10:55,214 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-02-08 14:10:55,215 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-02-08 14:10:55,215 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-02-08 14:10:55,215 INFO L274 PluginConnector]: Witness Printer initialized [2025-02-08 14:10:55,216 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 02:10:33" (3/4) ... [2025-02-08 14:10:55,217 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-02-08 14:10:55,218 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure thread1 [2025-02-08 14:10:55,218 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure thread2 [2025-02-08 14:10:55,219 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure thread3 [2025-02-08 14:10:55,219 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure thread4 [2025-02-08 14:10:55,221 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 25 nodes and edges [2025-02-08 14:10:55,221 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2025-02-08 14:10:55,221 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2025-02-08 14:10:55,221 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2025-02-08 14:10:55,267 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-02-08 14:10:55,267 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.yml [2025-02-08 14:10:55,267 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-02-08 14:10:55,268 INFO L158 Benchmark]: Toolchain (without parser) took 22290.59ms. Allocated memory was 167.8MB in the beginning and 5.6GB in the end (delta: 5.4GB). Free memory was 133.3MB in the beginning and 2.7GB in the end (delta: -2.6GB). Peak memory consumption was 2.8GB. Max. memory is 16.1GB. [2025-02-08 14:10:55,268 INFO L158 Benchmark]: CDTParser took 0.60ms. Allocated memory is still 209.7MB. Free memory is still 124.5MB. There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 14:10:55,268 INFO L158 Benchmark]: CACSL2BoogieTranslator took 171.59ms. Allocated memory is still 167.8MB. Free memory was 133.3MB in the beginning and 121.7MB in the end (delta: 11.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-08 14:10:55,268 INFO L158 Benchmark]: Boogie Procedure Inliner took 29.04ms. Allocated memory is still 167.8MB. Free memory was 121.7MB in the beginning and 120.0MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 14:10:55,268 INFO L158 Benchmark]: Boogie Preprocessor took 36.77ms. Allocated memory is still 167.8MB. Free memory was 120.0MB in the beginning and 118.3MB in the end (delta: 1.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-08 14:10:55,269 INFO L158 Benchmark]: IcfgBuilder took 504.43ms. Allocated memory is still 167.8MB. Free memory was 118.3MB in the beginning and 77.7MB in the end (delta: 40.5MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2025-02-08 14:10:55,269 INFO L158 Benchmark]: TraceAbstraction took 21490.60ms. Allocated memory was 167.8MB in the beginning and 5.6GB in the end (delta: 5.4GB). Free memory was 77.1MB in the beginning and 2.7GB in the end (delta: -2.7GB). Peak memory consumption was 2.7GB. Max. memory is 16.1GB. [2025-02-08 14:10:55,269 INFO L158 Benchmark]: Witness Printer took 52.16ms. Allocated memory is still 5.6GB. Free memory was 2.7GB in the beginning and 2.7GB in the end (delta: 4.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-08 14:10:55,270 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.60ms. Allocated memory is still 209.7MB. Free memory is still 124.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 171.59ms. Allocated memory is still 167.8MB. Free memory was 133.3MB in the beginning and 121.7MB in the end (delta: 11.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 29.04ms. Allocated memory is still 167.8MB. Free memory was 121.7MB in the beginning and 120.0MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 36.77ms. Allocated memory is still 167.8MB. Free memory was 120.0MB in the beginning and 118.3MB in the end (delta: 1.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * IcfgBuilder took 504.43ms. Allocated memory is still 167.8MB. Free memory was 118.3MB in the beginning and 77.7MB in the end (delta: 40.5MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * TraceAbstraction took 21490.60ms. Allocated memory was 167.8MB in the beginning and 5.6GB in the end (delta: 5.4GB). Free memory was 77.1MB in the beginning and 2.7GB in the end (delta: -2.7GB). Peak memory consumption was 2.7GB. Max. memory is 16.1GB. * Witness Printer took 52.16ms. Allocated memory is still 5.6GB. Free memory was 2.7GB in the beginning and 2.7GB in the end (delta: 4.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 41]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 41]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 46]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 46]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 52]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 52]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 56]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 56]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 62]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 62]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 66]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 66]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 72]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 72]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 76]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 76]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 9 procedures, 123 locations, 36 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 21.4s, OverallIterations: 11, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 20.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 599 SdHoareTripleChecker+Valid, 1.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 594 mSDsluCounter, 3 SdHoareTripleChecker+Invalid, 0.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 99 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1299 IncrementalHoareTripleChecker+Invalid, 1398 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 99 mSolverCounterUnsat, 3 mSDtfsCounter, 1299 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 35 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=344occurred in iteration=7, InterpolantAutomatonStates: 45, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 237 NumberOfCodeBlocks, 237 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 226 ConstructedInterpolants, 0 QuantifiedInterpolants, 468 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 11 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 16 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2025-02-08 14:10:55,293 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE