./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/weaver/chl-simpl-str-trans.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version c00e63dc Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/weaver/chl-simpl-str-trans.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 f7b74cf7a2419cab3ab4545eb4bb4cb738b0dd565da7b17a0ca0e4253475f1b6 --- Real Ultimate output --- This is Ultimate 0.3.0-?-c00e63d-m [2025-02-06 18:49:24,852 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-06 18:49:24,887 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2025-02-06 18:49:24,890 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-06 18:49:24,890 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-06 18:49:24,905 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-06 18:49:24,905 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-06 18:49:24,905 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-06 18:49:24,906 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-06 18:49:24,906 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-06 18:49:24,906 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-06 18:49:24,906 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-06 18:49:24,906 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-06 18:49:24,906 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-06 18:49:24,906 INFO L153 SettingsManager]: * Use SBE=true [2025-02-06 18:49:24,906 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-06 18:49:24,906 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-06 18:49:24,906 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-06 18:49:24,906 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-06 18:49:24,906 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-06 18:49:24,907 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-06 18:49:24,907 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-06 18:49:24,907 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-06 18:49:24,907 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-06 18:49:24,907 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2025-02-06 18:49:24,907 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-06 18:49:24,907 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-06 18:49:24,907 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-06 18:49:24,907 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-06 18:49:24,907 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-06 18:49:24,907 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-06 18:49:24,907 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-06 18:49:24,907 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-06 18:49:24,907 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-06 18:49:24,907 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 18:49:24,907 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-06 18:49:24,907 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-06 18:49:24,907 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-06 18:49:24,907 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-06 18:49:24,908 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-06 18:49:24,908 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-06 18:49:24,908 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-06 18:49:24,908 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-06 18:49:24,908 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-06 18:49:24,908 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-06 18:49:24,908 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 -> f7b74cf7a2419cab3ab4545eb4bb4cb738b0dd565da7b17a0ca0e4253475f1b6 [2025-02-06 18:49:25,123 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-06 18:49:25,133 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-06 18:49:25,136 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-06 18:49:25,137 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-06 18:49:25,138 INFO L274 PluginConnector]: CDTParser initialized [2025-02-06 18:49:25,139 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/chl-simpl-str-trans.wvr.c [2025-02-06 18:49:26,353 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/7cd39b412/1072af9999944e5fa249645e38562a40/FLAGa3cc99951 [2025-02-06 18:49:26,655 INFO L384 CDTParser]: Found 1 translation units. [2025-02-06 18:49:26,656 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/weaver/chl-simpl-str-trans.wvr.c [2025-02-06 18:49:26,663 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/7cd39b412/1072af9999944e5fa249645e38562a40/FLAGa3cc99951 [2025-02-06 18:49:26,963 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/7cd39b412/1072af9999944e5fa249645e38562a40 [2025-02-06 18:49:26,966 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-06 18:49:26,967 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-06 18:49:26,971 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-06 18:49:26,972 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-06 18:49:26,975 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-06 18:49:26,979 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 06:49:26" (1/1) ... [2025-02-06 18:49:26,980 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2bf12a05 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:49:26, skipping insertion in model container [2025-02-06 18:49:26,980 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 06:49:26" (1/1) ... [2025-02-06 18:49:27,001 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-06 18:49:27,121 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 18:49:27,132 INFO L200 MainTranslator]: Completed pre-run [2025-02-06 18:49:27,151 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 18:49:27,164 INFO L204 MainTranslator]: Completed translation [2025-02-06 18:49:27,164 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:49:27 WrapperNode [2025-02-06 18:49:27,164 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-06 18:49:27,165 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-06 18:49:27,166 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-06 18:49:27,166 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-06 18:49:27,170 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:49:27" (1/1) ... [2025-02-06 18:49:27,174 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:49:27" (1/1) ... [2025-02-06 18:49:27,190 INFO L138 Inliner]: procedures = 22, calls = 16, calls flagged for inlining = 9, calls inlined = 13, statements flattened = 197 [2025-02-06 18:49:27,190 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-06 18:49:27,191 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-06 18:49:27,191 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-06 18:49:27,191 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-06 18:49:27,195 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:49:27" (1/1) ... [2025-02-06 18:49:27,196 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:49:27" (1/1) ... [2025-02-06 18:49:27,197 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:49:27" (1/1) ... [2025-02-06 18:49:27,207 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]. [2025-02-06 18:49:27,207 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:49:27" (1/1) ... [2025-02-06 18:49:27,207 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:49:27" (1/1) ... [2025-02-06 18:49:27,210 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:49:27" (1/1) ... [2025-02-06 18:49:27,211 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:49:27" (1/1) ... [2025-02-06 18:49:27,212 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:49:27" (1/1) ... [2025-02-06 18:49:27,212 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:49:27" (1/1) ... [2025-02-06 18:49:27,214 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-06 18:49:27,214 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-06 18:49:27,215 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-06 18:49:27,215 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-06 18:49:27,215 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:49:27" (1/1) ... [2025-02-06 18:49:27,220 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 18:49:27,233 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 18:49:27,250 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-02-06 18:49:27,252 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-02-06 18:49:27,270 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-06 18:49:27,270 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2025-02-06 18:49:27,270 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2025-02-06 18:49:27,270 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2025-02-06 18:49:27,270 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2025-02-06 18:49:27,270 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2025-02-06 18:49:27,270 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2025-02-06 18:49:27,270 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-06 18:49:27,270 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-06 18:49:27,270 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-06 18:49:27,272 WARN L227 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-02-06 18:49:27,345 INFO L257 CfgBuilder]: Building ICFG [2025-02-06 18:49:27,346 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-06 18:49:27,746 INFO L304 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-02-06 18:49:27,746 INFO L308 CfgBuilder]: Performing block encoding [2025-02-06 18:49:27,903 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-06 18:49:27,903 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-06 18:49:27,903 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 06:49:27 BoogieIcfgContainer [2025-02-06 18:49:27,904 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-06 18:49:27,906 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-06 18:49:27,906 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-06 18:49:27,910 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-06 18:49:27,910 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.02 06:49:26" (1/3) ... [2025-02-06 18:49:27,912 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50dd86b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 06:49:27, skipping insertion in model container [2025-02-06 18:49:27,912 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:49:27" (2/3) ... [2025-02-06 18:49:27,912 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50dd86b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 06:49:27, skipping insertion in model container [2025-02-06 18:49:27,912 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 06:49:27" (3/3) ... [2025-02-06 18:49:27,914 INFO L128 eAbstractionObserver]: Analyzing ICFG chl-simpl-str-trans.wvr.c [2025-02-06 18:49:27,926 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-06 18:49:27,928 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG chl-simpl-str-trans.wvr.c that has 4 procedures, 78 locations, 1 initial locations, 0 loop locations, and 18 error locations. [2025-02-06 18:49:27,928 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-02-06 18:49:27,995 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2025-02-06 18:49:28,017 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 87 places, 89 transitions, 199 flow [2025-02-06 18:49:28,044 INFO L124 PetriNetUnfolderBase]: 12/86 cut-off events. [2025-02-06 18:49:28,046 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2025-02-06 18:49:28,049 INFO L83 FinitePrefix]: Finished finitePrefix Result has 99 conditions, 86 events. 12/86 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 335 event pairs, 0 based on Foata normal form. 0/56 useless extension candidates. Maximal degree in co-relation 84. Up to 2 conditions per place. [2025-02-06 18:49:28,049 INFO L82 GeneralOperation]: Start removeDead. Operand has 87 places, 89 transitions, 199 flow [2025-02-06 18:49:28,052 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 82 places, 84 transitions, 183 flow [2025-02-06 18:49:28,057 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-06 18:49:28,064 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;@7b5a492c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-06 18:49:28,065 INFO L334 AbstractCegarLoop]: Starting to check reachability of 39 error locations. [2025-02-06 18:49:28,071 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-02-06 18:49:28,071 INFO L124 PetriNetUnfolderBase]: 3/27 cut-off events. [2025-02-06 18:49:28,071 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-02-06 18:49:28,071 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:49:28,072 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2025-02-06 18:49:28,072 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2025-02-06 18:49:28,076 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:49:28,076 INFO L85 PathProgramCache]: Analyzing trace with hash 620187846, now seen corresponding path program 1 times [2025-02-06 18:49:28,081 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:49:28,082 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2008052850] [2025-02-06 18:49:28,082 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:49:28,082 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:49:28,130 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-02-06 18:49:28,139 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-02-06 18:49:28,140 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:49:28,140 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:49:28,250 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 18:49:28,251 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:49:28,251 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2008052850] [2025-02-06 18:49:28,251 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2008052850] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:49:28,252 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 18:49:28,252 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-06 18:49:28,253 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1603384525] [2025-02-06 18:49:28,253 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:49:28,258 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-06 18:49:28,261 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:49:28,275 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-06 18:49:28,276 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-02-06 18:49:28,301 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 45 out of 89 [2025-02-06 18:49:28,304 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 82 places, 84 transitions, 183 flow. Second operand has 4 states, 4 states have (on average 46.25) internal successors, (185), 4 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 18:49:28,304 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:49:28,304 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 45 of 89 [2025-02-06 18:49:28,305 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:49:29,677 INFO L124 PetriNetUnfolderBase]: 8633/13840 cut-off events. [2025-02-06 18:49:29,678 INFO L125 PetriNetUnfolderBase]: For 260/260 co-relation queries the response was YES. [2025-02-06 18:49:29,735 INFO L83 FinitePrefix]: Finished finitePrefix Result has 25678 conditions, 13840 events. 8633/13840 cut-off events. For 260/260 co-relation queries the response was YES. Maximal size of possible extension queue 841. Compared 105676 event pairs, 2832 based on Foata normal form. 364/11550 useless extension candidates. Maximal degree in co-relation 24979. Up to 5668 conditions per place. [2025-02-06 18:49:29,860 INFO L140 encePairwiseOnDemand]: 81/89 looper letters, 86 selfloop transitions, 5 changer transitions 0/133 dead transitions. [2025-02-06 18:49:29,860 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 84 places, 133 transitions, 475 flow [2025-02-06 18:49:29,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-06 18:49:29,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-02-06 18:49:29,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 274 transitions. [2025-02-06 18:49:29,880 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7696629213483146 [2025-02-06 18:49:29,882 INFO L175 Difference]: Start difference. First operand has 82 places, 84 transitions, 183 flow. Second operand 4 states and 274 transitions. [2025-02-06 18:49:29,883 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 84 places, 133 transitions, 475 flow [2025-02-06 18:49:29,896 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 79 places, 133 transitions, 460 flow, removed 0 selfloop flow, removed 5 redundant places. [2025-02-06 18:49:29,903 INFO L231 Difference]: Finished difference. Result has 82 places, 86 transitions, 208 flow [2025-02-06 18:49:29,905 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=89, PETRI_DIFFERENCE_MINUEND_FLOW=172, PETRI_DIFFERENCE_MINUEND_PLACES=76, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=83, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=78, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=208, PETRI_PLACES=82, PETRI_TRANSITIONS=86} [2025-02-06 18:49:29,908 INFO L279 CegarLoopForPetriNet]: 82 programPoint places, 0 predicate places. [2025-02-06 18:49:29,909 INFO L471 AbstractCegarLoop]: Abstraction has has 82 places, 86 transitions, 208 flow [2025-02-06 18:49:29,909 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 46.25) internal successors, (185), 4 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 18:49:29,909 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:49:29,909 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 18:49:29,909 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-02-06 18:49:29,910 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2025-02-06 18:49:29,910 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:49:29,910 INFO L85 PathProgramCache]: Analyzing trace with hash 2045954569, now seen corresponding path program 1 times [2025-02-06 18:49:29,910 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:49:29,910 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [593551272] [2025-02-06 18:49:29,910 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:49:29,910 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:49:29,922 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-02-06 18:49:29,934 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-02-06 18:49:29,936 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:49:29,936 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:49:29,987 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 18:49:29,988 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:49:29,988 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [593551272] [2025-02-06 18:49:29,988 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [593551272] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:49:29,988 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 18:49:29,988 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-06 18:49:29,988 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2137065295] [2025-02-06 18:49:29,988 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:49:29,989 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-06 18:49:29,989 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:49:29,990 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-06 18:49:29,990 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-06 18:49:30,008 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 89 [2025-02-06 18:49:30,008 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 82 places, 86 transitions, 208 flow. Second operand has 4 states, 4 states have (on average 49.0) internal successors, (196), 4 states have internal predecessors, (196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 18:49:30,008 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:49:30,008 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 89 [2025-02-06 18:49:30,009 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:49:30,797 INFO L124 PetriNetUnfolderBase]: 6311/11503 cut-off events. [2025-02-06 18:49:30,798 INFO L125 PetriNetUnfolderBase]: For 2345/2363 co-relation queries the response was YES. [2025-02-06 18:49:30,821 INFO L83 FinitePrefix]: Finished finitePrefix Result has 22474 conditions, 11503 events. 6311/11503 cut-off events. For 2345/2363 co-relation queries the response was YES. Maximal size of possible extension queue 728. Compared 97708 event pairs, 1511 based on Foata normal form. 18/9933 useless extension candidates. Maximal degree in co-relation 11989. Up to 5147 conditions per place. [2025-02-06 18:49:30,859 INFO L140 encePairwiseOnDemand]: 85/89 looper letters, 58 selfloop transitions, 4 changer transitions 0/108 dead transitions. [2025-02-06 18:49:30,859 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 84 places, 108 transitions, 379 flow [2025-02-06 18:49:30,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-06 18:49:30,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-02-06 18:49:30,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 253 transitions. [2025-02-06 18:49:30,861 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7106741573033708 [2025-02-06 18:49:30,861 INFO L175 Difference]: Start difference. First operand has 82 places, 86 transitions, 208 flow. Second operand 4 states and 253 transitions. [2025-02-06 18:49:30,861 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 84 places, 108 transitions, 379 flow [2025-02-06 18:49:30,894 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 84 places, 108 transitions, 379 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-02-06 18:49:30,896 INFO L231 Difference]: Finished difference. Result has 84 places, 85 transitions, 214 flow [2025-02-06 18:49:30,896 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=89, PETRI_DIFFERENCE_MINUEND_FLOW=206, PETRI_DIFFERENCE_MINUEND_PLACES=81, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=85, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=81, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=214, PETRI_PLACES=84, PETRI_TRANSITIONS=85} [2025-02-06 18:49:30,896 INFO L279 CegarLoopForPetriNet]: 82 programPoint places, 2 predicate places. [2025-02-06 18:49:30,896 INFO L471 AbstractCegarLoop]: Abstraction has has 84 places, 85 transitions, 214 flow [2025-02-06 18:49:30,897 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 49.0) internal successors, (196), 4 states have internal predecessors, (196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 18:49:30,897 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:49:30,897 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 18:49:30,897 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-02-06 18:49:30,897 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2025-02-06 18:49:30,897 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:49:30,897 INFO L85 PathProgramCache]: Analyzing trace with hash -999948022, now seen corresponding path program 1 times [2025-02-06 18:49:30,897 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:49:30,898 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1056891813] [2025-02-06 18:49:30,898 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:49:30,898 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:49:30,903 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 9 statements into 1 equivalence classes. [2025-02-06 18:49:30,908 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 9 of 9 statements. [2025-02-06 18:49:30,908 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:49:30,908 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:49:30,947 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 18:49:30,948 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:49:30,948 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1056891813] [2025-02-06 18:49:30,948 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1056891813] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:49:30,948 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 18:49:30,948 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-06 18:49:30,948 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1122866569] [2025-02-06 18:49:30,948 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:49:30,949 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-06 18:49:30,949 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:49:30,949 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-06 18:49:30,949 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-06 18:49:30,974 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 47 out of 89 [2025-02-06 18:49:30,975 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 84 places, 85 transitions, 214 flow. Second operand has 4 states, 4 states have (on average 48.25) internal successors, (193), 4 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 18:49:30,975 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:49:30,975 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 47 of 89 [2025-02-06 18:49:30,975 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:49:31,866 INFO L124 PetriNetUnfolderBase]: 6329/11357 cut-off events. [2025-02-06 18:49:31,866 INFO L125 PetriNetUnfolderBase]: For 4311/4329 co-relation queries the response was YES. [2025-02-06 18:49:31,899 INFO L83 FinitePrefix]: Finished finitePrefix Result has 22912 conditions, 11357 events. 6329/11357 cut-off events. For 4311/4329 co-relation queries the response was YES. Maximal size of possible extension queue 718. Compared 94875 event pairs, 1511 based on Foata normal form. 200/9969 useless extension candidates. Maximal degree in co-relation 12154. Up to 5329 conditions per place. [2025-02-06 18:49:31,950 INFO L140 encePairwiseOnDemand]: 85/89 looper letters, 59 selfloop transitions, 4 changer transitions 0/107 dead transitions. [2025-02-06 18:49:31,950 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 86 places, 107 transitions, 385 flow [2025-02-06 18:49:31,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-06 18:49:31,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-02-06 18:49:31,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 249 transitions. [2025-02-06 18:49:31,951 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.699438202247191 [2025-02-06 18:49:31,952 INFO L175 Difference]: Start difference. First operand has 84 places, 85 transitions, 214 flow. Second operand 4 states and 249 transitions. [2025-02-06 18:49:31,952 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 86 places, 107 transitions, 385 flow [2025-02-06 18:49:31,982 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 83 places, 107 transitions, 377 flow, removed 0 selfloop flow, removed 3 redundant places. [2025-02-06 18:49:31,983 INFO L231 Difference]: Finished difference. Result has 83 places, 84 transitions, 210 flow [2025-02-06 18:49:31,983 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=89, PETRI_DIFFERENCE_MINUEND_FLOW=202, PETRI_DIFFERENCE_MINUEND_PLACES=80, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=84, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=80, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=210, PETRI_PLACES=83, PETRI_TRANSITIONS=84} [2025-02-06 18:49:31,984 INFO L279 CegarLoopForPetriNet]: 82 programPoint places, 1 predicate places. [2025-02-06 18:49:31,984 INFO L471 AbstractCegarLoop]: Abstraction has has 83 places, 84 transitions, 210 flow [2025-02-06 18:49:31,984 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 48.25) internal successors, (193), 4 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 18:49:31,984 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:49:31,985 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 18:49:31,985 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-02-06 18:49:31,985 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting thread2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2025-02-06 18:49:31,985 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:49:31,985 INFO L85 PathProgramCache]: Analyzing trace with hash -2029137799, now seen corresponding path program 1 times [2025-02-06 18:49:31,986 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:49:31,986 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1675363242] [2025-02-06 18:49:31,986 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:49:31,986 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:49:31,992 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 9 statements into 1 equivalence classes. [2025-02-06 18:49:31,996 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 9 of 9 statements. [2025-02-06 18:49:31,996 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:49:31,996 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:49:32,052 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 18:49:32,052 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:49:32,052 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1675363242] [2025-02-06 18:49:32,053 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1675363242] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:49:32,053 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 18:49:32,053 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-06 18:49:32,053 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1172351419] [2025-02-06 18:49:32,053 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:49:32,053 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-06 18:49:32,053 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:49:32,054 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-06 18:49:32,054 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-06 18:49:32,074 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 47 out of 89 [2025-02-06 18:49:32,075 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 83 places, 84 transitions, 210 flow. Second operand has 4 states, 4 states have (on average 48.5) internal successors, (194), 4 states have internal predecessors, (194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 18:49:32,075 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:49:32,075 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 47 of 89 [2025-02-06 18:49:32,075 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:49:32,575 INFO L124 PetriNetUnfolderBase]: 6243/11124 cut-off events. [2025-02-06 18:49:32,575 INFO L125 PetriNetUnfolderBase]: For 3675/3853 co-relation queries the response was YES. [2025-02-06 18:49:32,602 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21859 conditions, 11124 events. 6243/11124 cut-off events. For 3675/3853 co-relation queries the response was YES. Maximal size of possible extension queue 691. Compared 91965 event pairs, 1765 based on Foata normal form. 636/9623 useless extension candidates. Maximal degree in co-relation 12542. Up to 4952 conditions per place. [2025-02-06 18:49:32,647 INFO L140 encePairwiseOnDemand]: 84/89 looper letters, 61 selfloop transitions, 3 changer transitions 0/106 dead transitions. [2025-02-06 18:49:32,647 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 84 places, 106 transitions, 409 flow [2025-02-06 18:49:32,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-06 18:49:32,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-02-06 18:49:32,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 250 transitions. [2025-02-06 18:49:32,648 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.702247191011236 [2025-02-06 18:49:32,648 INFO L175 Difference]: Start difference. First operand has 83 places, 84 transitions, 210 flow. Second operand 4 states and 250 transitions. [2025-02-06 18:49:32,649 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 84 places, 106 transitions, 409 flow [2025-02-06 18:49:32,658 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 81 places, 106 transitions, 395 flow, removed 0 selfloop flow, removed 3 redundant places. [2025-02-06 18:49:32,659 INFO L231 Difference]: Finished difference. Result has 81 places, 82 transitions, 204 flow [2025-02-06 18:49:32,659 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=89, PETRI_DIFFERENCE_MINUEND_FLOW=198, PETRI_DIFFERENCE_MINUEND_PLACES=78, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=82, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=79, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=204, PETRI_PLACES=81, PETRI_TRANSITIONS=82} [2025-02-06 18:49:32,660 INFO L279 CegarLoopForPetriNet]: 82 programPoint places, -1 predicate places. [2025-02-06 18:49:32,660 INFO L471 AbstractCegarLoop]: Abstraction has has 81 places, 82 transitions, 204 flow [2025-02-06 18:49:32,660 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 48.5) internal successors, (194), 4 states have internal predecessors, (194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 18:49:32,660 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:49:32,661 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 18:49:32,661 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-02-06 18:49:32,661 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2025-02-06 18:49:32,661 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:49:32,661 INFO L85 PathProgramCache]: Analyzing trace with hash -933618069, now seen corresponding path program 1 times [2025-02-06 18:49:32,661 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:49:32,662 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1572930370] [2025-02-06 18:49:32,662 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:49:32,662 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:49:32,667 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 10 statements into 1 equivalence classes. [2025-02-06 18:49:32,670 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 10 of 10 statements. [2025-02-06 18:49:32,671 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:49:32,671 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:49:32,723 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 18:49:32,723 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:49:32,724 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1572930370] [2025-02-06 18:49:32,724 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1572930370] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:49:32,724 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 18:49:32,724 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-06 18:49:32,724 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1517399255] [2025-02-06 18:49:32,724 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:49:32,724 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-06 18:49:32,724 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:49:32,725 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-06 18:49:32,725 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-02-06 18:49:32,754 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 46 out of 89 [2025-02-06 18:49:32,754 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 81 places, 82 transitions, 204 flow. Second operand has 5 states, 5 states have (on average 47.4) internal successors, (237), 5 states have internal predecessors, (237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 18:49:32,754 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:49:32,754 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 46 of 89 [2025-02-06 18:49:32,755 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:49:33,353 INFO L124 PetriNetUnfolderBase]: 8866/13776 cut-off events. [2025-02-06 18:49:33,354 INFO L125 PetriNetUnfolderBase]: For 1949/1949 co-relation queries the response was YES. [2025-02-06 18:49:33,390 INFO L83 FinitePrefix]: Finished finitePrefix Result has 28823 conditions, 13776 events. 8866/13776 cut-off events. For 1949/1949 co-relation queries the response was YES. Maximal size of possible extension queue 818. Compared 101204 event pairs, 1439 based on Foata normal form. 0/12611 useless extension candidates. Maximal degree in co-relation 16047. Up to 6491 conditions per place. [2025-02-06 18:49:33,537 INFO L140 encePairwiseOnDemand]: 83/89 looper letters, 82 selfloop transitions, 6 changer transitions 0/127 dead transitions. [2025-02-06 18:49:33,537 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 84 places, 127 transitions, 484 flow [2025-02-06 18:49:33,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-06 18:49:33,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-02-06 18:49:33,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 318 transitions. [2025-02-06 18:49:33,539 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7146067415730337 [2025-02-06 18:49:33,539 INFO L175 Difference]: Start difference. First operand has 81 places, 82 transitions, 204 flow. Second operand 5 states and 318 transitions. [2025-02-06 18:49:33,539 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 84 places, 127 transitions, 484 flow [2025-02-06 18:49:33,560 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 81 places, 127 transitions, 470 flow, removed 0 selfloop flow, removed 3 redundant places. [2025-02-06 18:49:33,562 INFO L231 Difference]: Finished difference. Result has 81 places, 81 transitions, 208 flow [2025-02-06 18:49:33,562 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=89, PETRI_DIFFERENCE_MINUEND_FLOW=196, PETRI_DIFFERENCE_MINUEND_PLACES=77, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=81, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=75, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=208, PETRI_PLACES=81, PETRI_TRANSITIONS=81} [2025-02-06 18:49:33,562 INFO L279 CegarLoopForPetriNet]: 82 programPoint places, -1 predicate places. [2025-02-06 18:49:33,563 INFO L471 AbstractCegarLoop]: Abstraction has has 81 places, 81 transitions, 208 flow [2025-02-06 18:49:33,563 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 47.4) internal successors, (237), 5 states have internal predecessors, (237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 18:49:33,563 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:49:33,563 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 18:49:33,563 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-02-06 18:49:33,563 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2025-02-06 18:49:33,564 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:49:33,564 INFO L85 PathProgramCache]: Analyzing trace with hash -933617076, now seen corresponding path program 1 times [2025-02-06 18:49:33,564 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:49:33,564 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1346785062] [2025-02-06 18:49:33,564 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:49:33,564 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:49:33,572 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 10 statements into 1 equivalence classes. [2025-02-06 18:49:33,578 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 10 of 10 statements. [2025-02-06 18:49:33,579 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:49:33,579 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:49:33,640 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 18:49:33,641 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:49:33,641 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1346785062] [2025-02-06 18:49:33,641 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1346785062] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:49:33,641 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 18:49:33,641 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-06 18:49:33,641 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1059400324] [2025-02-06 18:49:33,643 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:49:33,644 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-06 18:49:33,644 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:49:33,644 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-06 18:49:33,644 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-02-06 18:49:33,677 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 45 out of 89 [2025-02-06 18:49:33,678 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 81 places, 81 transitions, 208 flow. Second operand has 4 states, 4 states have (on average 46.5) internal successors, (186), 4 states have internal predecessors, (186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 18:49:33,678 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:49:33,678 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 45 of 89 [2025-02-06 18:49:33,678 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:49:34,302 INFO L124 PetriNetUnfolderBase]: 7078/11925 cut-off events. [2025-02-06 18:49:34,303 INFO L125 PetriNetUnfolderBase]: For 4309/4309 co-relation queries the response was YES. [2025-02-06 18:49:34,328 INFO L83 FinitePrefix]: Finished finitePrefix Result has 24586 conditions, 11925 events. 7078/11925 cut-off events. For 4309/4309 co-relation queries the response was YES. Maximal size of possible extension queue 722. Compared 94578 event pairs, 2971 based on Foata normal form. 182/10545 useless extension candidates. Maximal degree in co-relation 13513. Up to 5734 conditions per place. [2025-02-06 18:49:34,374 INFO L140 encePairwiseOnDemand]: 84/89 looper letters, 84 selfloop transitions, 4 changer transitions 0/127 dead transitions. [2025-02-06 18:49:34,375 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 84 places, 127 transitions, 478 flow [2025-02-06 18:49:34,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-06 18:49:34,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-02-06 18:49:34,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 269 transitions. [2025-02-06 18:49:34,377 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7556179775280899 [2025-02-06 18:49:34,378 INFO L175 Difference]: Start difference. First operand has 81 places, 81 transitions, 208 flow. Second operand 4 states and 269 transitions. [2025-02-06 18:49:34,378 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 84 places, 127 transitions, 478 flow [2025-02-06 18:49:34,397 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 80 places, 127 transitions, 466 flow, removed 0 selfloop flow, removed 4 redundant places. [2025-02-06 18:49:34,399 INFO L231 Difference]: Finished difference. Result has 80 places, 80 transitions, 198 flow [2025-02-06 18:49:34,400 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=89, PETRI_DIFFERENCE_MINUEND_FLOW=190, PETRI_DIFFERENCE_MINUEND_PLACES=77, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=80, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=76, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=198, PETRI_PLACES=80, PETRI_TRANSITIONS=80} [2025-02-06 18:49:34,401 INFO L279 CegarLoopForPetriNet]: 82 programPoint places, -2 predicate places. [2025-02-06 18:49:34,402 INFO L471 AbstractCegarLoop]: Abstraction has has 80 places, 80 transitions, 198 flow [2025-02-06 18:49:34,403 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 46.5) internal successors, (186), 4 states have internal predecessors, (186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 18:49:34,403 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:49:34,403 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 18:49:34,403 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-02-06 18:49:34,403 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2025-02-06 18:49:34,403 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:49:34,403 INFO L85 PathProgramCache]: Analyzing trace with hash 1521238223, now seen corresponding path program 1 times [2025-02-06 18:49:34,404 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:49:34,404 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [538284961] [2025-02-06 18:49:34,404 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:49:34,404 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:49:34,408 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 10 statements into 1 equivalence classes. [2025-02-06 18:49:34,411 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 10 of 10 statements. [2025-02-06 18:49:34,411 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:49:34,411 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:49:34,449 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 18:49:34,451 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:49:34,451 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [538284961] [2025-02-06 18:49:34,451 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [538284961] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:49:34,451 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 18:49:34,451 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-06 18:49:34,451 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1457835496] [2025-02-06 18:49:34,451 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:49:34,451 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-06 18:49:34,452 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:49:34,452 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-06 18:49:34,452 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-06 18:49:34,479 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 89 [2025-02-06 18:49:34,479 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 80 places, 80 transitions, 198 flow. Second operand has 4 states, 4 states have (on average 49.5) internal successors, (198), 4 states have internal predecessors, (198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 18:49:34,479 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:49:34,479 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 89 [2025-02-06 18:49:34,480 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:49:35,055 INFO L124 PetriNetUnfolderBase]: 4956/9521 cut-off events. [2025-02-06 18:49:35,055 INFO L125 PetriNetUnfolderBase]: For 2429/2567 co-relation queries the response was YES. [2025-02-06 18:49:35,077 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17841 conditions, 9521 events. 4956/9521 cut-off events. For 2429/2567 co-relation queries the response was YES. Maximal size of possible extension queue 603. Compared 82243 event pairs, 1729 based on Foata normal form. 138/8095 useless extension candidates. Maximal degree in co-relation 10356. Up to 3328 conditions per place. [2025-02-06 18:49:35,112 INFO L140 encePairwiseOnDemand]: 85/89 looper letters, 59 selfloop transitions, 3 changer transitions 0/103 dead transitions. [2025-02-06 18:49:35,113 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 82 places, 103 transitions, 394 flow [2025-02-06 18:49:35,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-06 18:49:35,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-02-06 18:49:35,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 251 transitions. [2025-02-06 18:49:35,118 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7050561797752809 [2025-02-06 18:49:35,118 INFO L175 Difference]: Start difference. First operand has 80 places, 80 transitions, 198 flow. Second operand 4 states and 251 transitions. [2025-02-06 18:49:35,118 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 82 places, 103 transitions, 394 flow [2025-02-06 18:49:35,125 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 80 places, 103 transitions, 383 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-02-06 18:49:35,126 INFO L231 Difference]: Finished difference. Result has 80 places, 79 transitions, 196 flow [2025-02-06 18:49:35,126 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=89, PETRI_DIFFERENCE_MINUEND_FLOW=190, PETRI_DIFFERENCE_MINUEND_PLACES=77, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=79, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=76, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=196, PETRI_PLACES=80, PETRI_TRANSITIONS=79} [2025-02-06 18:49:35,128 INFO L279 CegarLoopForPetriNet]: 82 programPoint places, -2 predicate places. [2025-02-06 18:49:35,128 INFO L471 AbstractCegarLoop]: Abstraction has has 80 places, 79 transitions, 196 flow [2025-02-06 18:49:35,128 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 49.5) internal successors, (198), 4 states have internal predecessors, (198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 18:49:35,128 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:49:35,129 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 18:49:35,129 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-02-06 18:49:35,129 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2025-02-06 18:49:35,129 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:49:35,129 INFO L85 PathProgramCache]: Analyzing trace with hash 1122611469, now seen corresponding path program 1 times [2025-02-06 18:49:35,129 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:49:35,129 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [475466411] [2025-02-06 18:49:35,129 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:49:35,130 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:49:35,137 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 11 statements into 1 equivalence classes. [2025-02-06 18:49:35,140 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 11 of 11 statements. [2025-02-06 18:49:35,140 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:49:35,140 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:49:35,213 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 18:49:35,213 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:49:35,213 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [475466411] [2025-02-06 18:49:35,213 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [475466411] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:49:35,213 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 18:49:35,213 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-06 18:49:35,214 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1690800970] [2025-02-06 18:49:35,214 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:49:35,214 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-06 18:49:35,214 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:49:35,214 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-06 18:49:35,214 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-02-06 18:49:35,244 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 43 out of 89 [2025-02-06 18:49:35,245 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 80 places, 79 transitions, 196 flow. Second operand has 6 states, 6 states have (on average 44.166666666666664) internal successors, (265), 6 states have internal predecessors, (265), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 18:49:35,245 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:49:35,245 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 43 of 89 [2025-02-06 18:49:35,245 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:49:36,107 INFO L124 PetriNetUnfolderBase]: 8684/13355 cut-off events. [2025-02-06 18:49:36,107 INFO L125 PetriNetUnfolderBase]: For 3059/3077 co-relation queries the response was YES. [2025-02-06 18:49:36,124 INFO L83 FinitePrefix]: Finished finitePrefix Result has 27965 conditions, 13355 events. 8684/13355 cut-off events. For 3059/3077 co-relation queries the response was YES. Maximal size of possible extension queue 802. Compared 96725 event pairs, 1421 based on Foata normal form. 382/12572 useless extension candidates. Maximal degree in co-relation 14711. Up to 3687 conditions per place. [2025-02-06 18:49:36,156 INFO L140 encePairwiseOnDemand]: 81/89 looper letters, 102 selfloop transitions, 9 changer transitions 0/148 dead transitions. [2025-02-06 18:49:36,156 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 84 places, 148 transitions, 577 flow [2025-02-06 18:49:36,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-06 18:49:36,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-02-06 18:49:36,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 368 transitions. [2025-02-06 18:49:36,158 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6891385767790262 [2025-02-06 18:49:36,158 INFO L175 Difference]: Start difference. First operand has 80 places, 79 transitions, 196 flow. Second operand 6 states and 368 transitions. [2025-02-06 18:49:36,158 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 84 places, 148 transitions, 577 flow [2025-02-06 18:49:36,172 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 81 places, 148 transitions, 559 flow, removed 0 selfloop flow, removed 3 redundant places. [2025-02-06 18:49:36,174 INFO L231 Difference]: Finished difference. Result has 82 places, 79 transitions, 215 flow [2025-02-06 18:49:36,174 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=89, PETRI_DIFFERENCE_MINUEND_FLOW=188, PETRI_DIFFERENCE_MINUEND_PLACES=76, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=78, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=69, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=215, PETRI_PLACES=82, PETRI_TRANSITIONS=79} [2025-02-06 18:49:36,174 INFO L279 CegarLoopForPetriNet]: 82 programPoint places, 0 predicate places. [2025-02-06 18:49:36,174 INFO L471 AbstractCegarLoop]: Abstraction has has 82 places, 79 transitions, 215 flow [2025-02-06 18:49:36,175 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 44.166666666666664) internal successors, (265), 6 states have internal predecessors, (265), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 18:49:36,175 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:49:36,175 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 18:49:36,175 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-02-06 18:49:36,175 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting thread3Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2025-02-06 18:49:36,175 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:49:36,175 INFO L85 PathProgramCache]: Analyzing trace with hash 741851623, now seen corresponding path program 1 times [2025-02-06 18:49:36,175 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:49:36,176 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [949817830] [2025-02-06 18:49:36,176 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:49:36,176 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:49:36,179 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 11 statements into 1 equivalence classes. [2025-02-06 18:49:36,181 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 11 of 11 statements. [2025-02-06 18:49:36,181 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:49:36,181 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:49:36,203 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 18:49:36,203 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:49:36,203 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [949817830] [2025-02-06 18:49:36,203 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [949817830] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:49:36,203 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 18:49:36,203 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-06 18:49:36,203 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1893721162] [2025-02-06 18:49:36,203 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:49:36,204 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-06 18:49:36,204 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:49:36,204 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-06 18:49:36,204 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-02-06 18:49:36,220 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 45 out of 89 [2025-02-06 18:49:36,220 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 82 places, 79 transitions, 215 flow. Second operand has 4 states, 4 states have (on average 47.25) internal successors, (189), 4 states have internal predecessors, (189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 18:49:36,220 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:49:36,220 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 45 of 89 [2025-02-06 18:49:36,220 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:49:36,890 INFO L124 PetriNetUnfolderBase]: 10447/16725 cut-off events. [2025-02-06 18:49:36,890 INFO L125 PetriNetUnfolderBase]: For 12085/12985 co-relation queries the response was YES. [2025-02-06 18:49:36,928 INFO L83 FinitePrefix]: Finished finitePrefix Result has 36550 conditions, 16725 events. 10447/16725 cut-off events. For 12085/12985 co-relation queries the response was YES. Maximal size of possible extension queue 959. Compared 130662 event pairs, 3703 based on Foata normal form. 1180/15415 useless extension candidates. Maximal degree in co-relation 20292. Up to 7188 conditions per place. [2025-02-06 18:49:36,982 INFO L140 encePairwiseOnDemand]: 81/89 looper letters, 91 selfloop transitions, 5 changer transitions 0/130 dead transitions. [2025-02-06 18:49:36,983 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 84 places, 130 transitions, 583 flow [2025-02-06 18:49:36,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-06 18:49:36,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-02-06 18:49:36,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 270 transitions. [2025-02-06 18:49:36,984 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7584269662921348 [2025-02-06 18:49:36,984 INFO L175 Difference]: Start difference. First operand has 82 places, 79 transitions, 215 flow. Second operand 4 states and 270 transitions. [2025-02-06 18:49:36,984 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 84 places, 130 transitions, 583 flow [2025-02-06 18:49:36,999 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 80 places, 130 transitions, 552 flow, removed 0 selfloop flow, removed 4 redundant places. [2025-02-06 18:49:37,000 INFO L231 Difference]: Finished difference. Result has 83 places, 81 transitions, 236 flow [2025-02-06 18:49:37,000 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=89, PETRI_DIFFERENCE_MINUEND_FLOW=200, PETRI_DIFFERENCE_MINUEND_PLACES=77, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=78, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=73, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=236, PETRI_PLACES=83, PETRI_TRANSITIONS=81} [2025-02-06 18:49:37,001 INFO L279 CegarLoopForPetriNet]: 82 programPoint places, 1 predicate places. [2025-02-06 18:49:37,001 INFO L471 AbstractCegarLoop]: Abstraction has has 83 places, 81 transitions, 236 flow [2025-02-06 18:49:37,001 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 47.25) internal successors, (189), 4 states have internal predecessors, (189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 18:49:37,001 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:49:37,001 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 18:49:37,001 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-02-06 18:49:37,002 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2025-02-06 18:49:37,002 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:49:37,002 INFO L85 PathProgramCache]: Analyzing trace with hash 1359906642, now seen corresponding path program 1 times [2025-02-06 18:49:37,002 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:49:37,002 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1064534954] [2025-02-06 18:49:37,002 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:49:37,002 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:49:37,006 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-02-06 18:49:37,007 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-02-06 18:49:37,008 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:49:37,008 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:49:37,054 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 18:49:37,054 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:49:37,054 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1064534954] [2025-02-06 18:49:37,054 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1064534954] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:49:37,054 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 18:49:37,054 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-06 18:49:37,054 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [677623815] [2025-02-06 18:49:37,054 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:49:37,055 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-06 18:49:37,055 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:49:37,055 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-06 18:49:37,055 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-02-06 18:49:37,079 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 43 out of 89 [2025-02-06 18:49:37,080 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 83 places, 81 transitions, 236 flow. Second operand has 5 states, 5 states have (on average 44.6) internal successors, (223), 5 states have internal predecessors, (223), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 18:49:37,080 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:49:37,080 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 43 of 89 [2025-02-06 18:49:37,080 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:49:37,844 INFO L124 PetriNetUnfolderBase]: 10482/16418 cut-off events. [2025-02-06 18:49:37,845 INFO L125 PetriNetUnfolderBase]: For 6984/7339 co-relation queries the response was YES. [2025-02-06 18:49:37,895 INFO L83 FinitePrefix]: Finished finitePrefix Result has 37598 conditions, 16418 events. 10482/16418 cut-off events. For 6984/7339 co-relation queries the response was YES. Maximal size of possible extension queue 923. Compared 124655 event pairs, 3761 based on Foata normal form. 415/15414 useless extension candidates. Maximal degree in co-relation 22478. Up to 7289 conditions per place. [2025-02-06 18:49:37,947 INFO L140 encePairwiseOnDemand]: 82/89 looper letters, 139 selfloop transitions, 8 changer transitions 0/182 dead transitions. [2025-02-06 18:49:37,948 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 87 places, 182 transitions, 816 flow [2025-02-06 18:49:37,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-06 18:49:37,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-02-06 18:49:37,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 396 transitions. [2025-02-06 18:49:37,949 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7415730337078652 [2025-02-06 18:49:37,949 INFO L175 Difference]: Start difference. First operand has 83 places, 81 transitions, 236 flow. Second operand 6 states and 396 transitions. [2025-02-06 18:49:37,949 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 87 places, 182 transitions, 816 flow [2025-02-06 18:49:38,038 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 86 places, 182 transitions, 811 flow, removed 1 selfloop flow, removed 1 redundant places. [2025-02-06 18:49:38,039 INFO L231 Difference]: Finished difference. Result has 88 places, 82 transitions, 260 flow [2025-02-06 18:49:38,039 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=89, PETRI_DIFFERENCE_MINUEND_FLOW=225, PETRI_DIFFERENCE_MINUEND_PLACES=81, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=80, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=73, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=260, PETRI_PLACES=88, PETRI_TRANSITIONS=82} [2025-02-06 18:49:38,040 INFO L279 CegarLoopForPetriNet]: 82 programPoint places, 6 predicate places. [2025-02-06 18:49:38,040 INFO L471 AbstractCegarLoop]: Abstraction has has 88 places, 82 transitions, 260 flow [2025-02-06 18:49:38,040 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 44.6) internal successors, (223), 5 states have internal predecessors, (223), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 18:49:38,040 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:49:38,040 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 18:49:38,040 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2025-02-06 18:49:38,041 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting thread3Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2025-02-06 18:49:38,041 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:49:38,041 INFO L85 PathProgramCache]: Analyzing trace with hash 1522564410, now seen corresponding path program 1 times [2025-02-06 18:49:38,041 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:49:38,041 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1046148917] [2025-02-06 18:49:38,041 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:49:38,041 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:49:38,045 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-02-06 18:49:38,047 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-02-06 18:49:38,047 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:49:38,047 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:49:38,075 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 18:49:38,076 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:49:38,076 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1046148917] [2025-02-06 18:49:38,076 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1046148917] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:49:38,076 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 18:49:38,076 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-06 18:49:38,076 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1019277455] [2025-02-06 18:49:38,076 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:49:38,076 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-06 18:49:38,076 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:49:38,077 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-06 18:49:38,077 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-06 18:49:38,087 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 89 [2025-02-06 18:49:38,088 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 88 places, 82 transitions, 260 flow. Second operand has 4 states, 4 states have (on average 50.0) internal successors, (200), 4 states have internal predecessors, (200), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 18:49:38,088 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:49:38,088 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 89 [2025-02-06 18:49:38,088 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:49:38,688 INFO L124 PetriNetUnfolderBase]: 7726/13941 cut-off events. [2025-02-06 18:49:38,688 INFO L125 PetriNetUnfolderBase]: For 12972/13528 co-relation queries the response was YES. [2025-02-06 18:49:38,722 INFO L83 FinitePrefix]: Finished finitePrefix Result has 31477 conditions, 13941 events. 7726/13941 cut-off events. For 12972/13528 co-relation queries the response was YES. Maximal size of possible extension queue 824. Compared 120717 event pairs, 2027 based on Foata normal form. 556/12923 useless extension candidates. Maximal degree in co-relation 21537. Up to 5836 conditions per place. [2025-02-06 18:49:38,763 INFO L140 encePairwiseOnDemand]: 85/89 looper letters, 64 selfloop transitions, 4 changer transitions 0/106 dead transitions. [2025-02-06 18:49:38,763 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 90 places, 106 transitions, 487 flow [2025-02-06 18:49:38,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-06 18:49:38,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-02-06 18:49:38,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 251 transitions. [2025-02-06 18:49:38,764 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7050561797752809 [2025-02-06 18:49:38,764 INFO L175 Difference]: Start difference. First operand has 88 places, 82 transitions, 260 flow. Second operand 4 states and 251 transitions. [2025-02-06 18:49:38,764 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 90 places, 106 transitions, 487 flow [2025-02-06 18:49:38,813 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 86 places, 106 transitions, 459 flow, removed 6 selfloop flow, removed 4 redundant places. [2025-02-06 18:49:38,814 INFO L231 Difference]: Finished difference. Result has 86 places, 81 transitions, 250 flow [2025-02-06 18:49:38,814 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=89, PETRI_DIFFERENCE_MINUEND_FLOW=242, PETRI_DIFFERENCE_MINUEND_PLACES=83, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=81, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=77, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=250, PETRI_PLACES=86, PETRI_TRANSITIONS=81} [2025-02-06 18:49:38,815 INFO L279 CegarLoopForPetriNet]: 82 programPoint places, 4 predicate places. [2025-02-06 18:49:38,815 INFO L471 AbstractCegarLoop]: Abstraction has has 86 places, 81 transitions, 250 flow [2025-02-06 18:49:38,815 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 50.0) internal successors, (200), 4 states have internal predecessors, (200), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 18:49:38,815 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:49:38,815 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 18:49:38,815 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2025-02-06 18:49:38,815 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2025-02-06 18:49:38,816 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:49:38,816 INFO L85 PathProgramCache]: Analyzing trace with hash 1620116146, now seen corresponding path program 1 times [2025-02-06 18:49:38,816 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:49:38,816 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1984910926] [2025-02-06 18:49:38,816 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:49:38,816 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:49:38,822 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-02-06 18:49:38,825 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-02-06 18:49:38,825 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:49:38,825 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:49:38,860 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 18:49:38,860 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:49:38,860 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1984910926] [2025-02-06 18:49:38,860 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1984910926] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:49:38,860 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 18:49:38,860 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-06 18:49:38,860 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1045231770] [2025-02-06 18:49:38,860 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:49:38,861 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-06 18:49:38,861 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:49:38,861 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-06 18:49:38,861 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-02-06 18:49:38,883 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 45 out of 89 [2025-02-06 18:49:38,887 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 86 places, 81 transitions, 250 flow. Second operand has 4 states, 4 states have (on average 47.0) internal successors, (188), 4 states have internal predecessors, (188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 18:49:38,887 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:49:38,887 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 45 of 89 [2025-02-06 18:49:38,887 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:49:39,800 INFO L124 PetriNetUnfolderBase]: 10766/19499 cut-off events. [2025-02-06 18:49:39,800 INFO L125 PetriNetUnfolderBase]: For 14922/16147 co-relation queries the response was YES. [2025-02-06 18:49:39,845 INFO L83 FinitePrefix]: Finished finitePrefix Result has 42257 conditions, 19499 events. 10766/19499 cut-off events. For 14922/16147 co-relation queries the response was YES. Maximal size of possible extension queue 1081. Compared 175801 event pairs, 4640 based on Foata normal form. 1047/17680 useless extension candidates. Maximal degree in co-relation 28927. Up to 8518 conditions per place. [2025-02-06 18:49:39,913 INFO L140 encePairwiseOnDemand]: 83/89 looper letters, 100 selfloop transitions, 5 changer transitions 0/141 dead transitions. [2025-02-06 18:49:39,914 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 89 places, 141 transitions, 692 flow [2025-02-06 18:49:39,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-06 18:49:39,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-02-06 18:49:39,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 268 transitions. [2025-02-06 18:49:39,915 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7528089887640449 [2025-02-06 18:49:39,915 INFO L175 Difference]: Start difference. First operand has 86 places, 81 transitions, 250 flow. Second operand 4 states and 268 transitions. [2025-02-06 18:49:39,915 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 89 places, 141 transitions, 692 flow [2025-02-06 18:49:39,934 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 86 places, 141 transitions, 672 flow, removed 0 selfloop flow, removed 3 redundant places. [2025-02-06 18:49:39,935 INFO L231 Difference]: Finished difference. Result has 88 places, 83 transitions, 269 flow [2025-02-06 18:49:39,935 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=89, PETRI_DIFFERENCE_MINUEND_FLOW=242, PETRI_DIFFERENCE_MINUEND_PLACES=83, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=81, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=76, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=269, PETRI_PLACES=88, PETRI_TRANSITIONS=83} [2025-02-06 18:49:39,936 INFO L279 CegarLoopForPetriNet]: 82 programPoint places, 6 predicate places. [2025-02-06 18:49:39,936 INFO L471 AbstractCegarLoop]: Abstraction has has 88 places, 83 transitions, 269 flow [2025-02-06 18:49:39,936 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 47.0) internal successors, (188), 4 states have internal predecessors, (188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 18:49:39,936 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:49:39,936 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 18:49:39,937 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2025-02-06 18:49:39,937 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2025-02-06 18:49:39,937 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:49:39,937 INFO L85 PathProgramCache]: Analyzing trace with hash 1620115153, now seen corresponding path program 1 times [2025-02-06 18:49:39,937 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:49:39,937 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [57704817] [2025-02-06 18:49:39,937 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:49:39,937 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:49:39,941 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-02-06 18:49:39,943 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-02-06 18:49:39,944 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:49:39,944 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:49:39,984 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 18:49:39,985 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:49:39,985 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [57704817] [2025-02-06 18:49:39,985 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [57704817] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:49:39,985 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 18:49:39,985 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-06 18:49:39,985 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1823402544] [2025-02-06 18:49:39,985 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:49:39,986 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-06 18:49:39,986 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:49:39,986 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-06 18:49:39,986 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-02-06 18:49:40,006 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 46 out of 89 [2025-02-06 18:49:40,007 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 88 places, 83 transitions, 269 flow. Second operand has 5 states, 5 states have (on average 47.8) internal successors, (239), 5 states have internal predecessors, (239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 18:49:40,007 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:49:40,007 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 46 of 89 [2025-02-06 18:49:40,007 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:49:41,342 INFO L124 PetriNetUnfolderBase]: 13072/20814 cut-off events. [2025-02-06 18:49:41,342 INFO L125 PetriNetUnfolderBase]: For 18032/19691 co-relation queries the response was YES. [2025-02-06 18:49:41,441 INFO L83 FinitePrefix]: Finished finitePrefix Result has 50298 conditions, 20814 events. 13072/20814 cut-off events. For 18032/19691 co-relation queries the response was YES. Maximal size of possible extension queue 1131. Compared 164731 event pairs, 2189 based on Foata normal form. 1372/20962 useless extension candidates. Maximal degree in co-relation 34413. Up to 9910 conditions per place. [2025-02-06 18:49:41,527 INFO L140 encePairwiseOnDemand]: 83/89 looper letters, 99 selfloop transitions, 6 changer transitions 0/139 dead transitions. [2025-02-06 18:49:41,527 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 91 places, 139 transitions, 691 flow [2025-02-06 18:49:41,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-06 18:49:41,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-02-06 18:49:41,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 316 transitions. [2025-02-06 18:49:41,528 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7101123595505618 [2025-02-06 18:49:41,528 INFO L175 Difference]: Start difference. First operand has 88 places, 83 transitions, 269 flow. Second operand 5 states and 316 transitions. [2025-02-06 18:49:41,528 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 91 places, 139 transitions, 691 flow [2025-02-06 18:49:41,609 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 90 places, 139 transitions, 688 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-02-06 18:49:41,610 INFO L231 Difference]: Finished difference. Result has 91 places, 83 transitions, 283 flow [2025-02-06 18:49:41,611 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=89, PETRI_DIFFERENCE_MINUEND_FLOW=264, PETRI_DIFFERENCE_MINUEND_PLACES=86, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=82, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=76, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=283, PETRI_PLACES=91, PETRI_TRANSITIONS=83} [2025-02-06 18:49:41,611 INFO L279 CegarLoopForPetriNet]: 82 programPoint places, 9 predicate places. [2025-02-06 18:49:41,611 INFO L471 AbstractCegarLoop]: Abstraction has has 91 places, 83 transitions, 283 flow [2025-02-06 18:49:41,612 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 47.8) internal successors, (239), 5 states have internal predecessors, (239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 18:49:41,612 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:49:41,612 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 18:49:41,612 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2025-02-06 18:49:41,612 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting thread3Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2025-02-06 18:49:41,612 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:49:41,612 INFO L85 PathProgramCache]: Analyzing trace with hash -45173717, now seen corresponding path program 1 times [2025-02-06 18:49:41,612 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:49:41,612 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1817225690] [2025-02-06 18:49:41,613 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:49:41,613 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:49:41,616 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 13 statements into 1 equivalence classes. [2025-02-06 18:49:41,622 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 13 of 13 statements. [2025-02-06 18:49:41,623 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:49:41,623 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:49:41,643 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 18:49:41,643 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:49:41,643 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1817225690] [2025-02-06 18:49:41,643 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1817225690] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:49:41,643 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 18:49:41,643 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-06 18:49:41,644 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1900501192] [2025-02-06 18:49:41,644 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:49:41,644 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-06 18:49:41,644 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:49:41,644 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-06 18:49:41,644 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-06 18:49:41,659 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 47 out of 89 [2025-02-06 18:49:41,659 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 91 places, 83 transitions, 283 flow. Second operand has 4 states, 4 states have (on average 49.25) internal successors, (197), 4 states have internal predecessors, (197), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 18:49:41,659 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:49:41,660 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 47 of 89 [2025-02-06 18:49:41,660 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:49:42,463 INFO L124 PetriNetUnfolderBase]: 9596/17520 cut-off events. [2025-02-06 18:49:42,463 INFO L125 PetriNetUnfolderBase]: For 17689/18786 co-relation queries the response was YES. [2025-02-06 18:49:42,528 INFO L83 FinitePrefix]: Finished finitePrefix Result has 41498 conditions, 17520 events. 9596/17520 cut-off events. For 17689/18786 co-relation queries the response was YES. Maximal size of possible extension queue 999. Compared 157273 event pairs, 2522 based on Foata normal form. 1213/17096 useless extension candidates. Maximal degree in co-relation 28709. Up to 7473 conditions per place. [2025-02-06 18:49:42,588 INFO L140 encePairwiseOnDemand]: 85/89 looper letters, 71 selfloop transitions, 4 changer transitions 0/110 dead transitions. [2025-02-06 18:49:42,588 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 93 places, 110 transitions, 544 flow [2025-02-06 18:49:42,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-06 18:49:42,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-02-06 18:49:42,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 247 transitions. [2025-02-06 18:49:42,589 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6938202247191011 [2025-02-06 18:49:42,589 INFO L175 Difference]: Start difference. First operand has 91 places, 83 transitions, 283 flow. Second operand 4 states and 247 transitions. [2025-02-06 18:49:42,590 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 93 places, 110 transitions, 544 flow [2025-02-06 18:49:42,656 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 90 places, 110 transitions, 529 flow, removed 0 selfloop flow, removed 3 redundant places. [2025-02-06 18:49:42,657 INFO L231 Difference]: Finished difference. Result has 90 places, 82 transitions, 278 flow [2025-02-06 18:49:42,657 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=89, PETRI_DIFFERENCE_MINUEND_FLOW=270, PETRI_DIFFERENCE_MINUEND_PLACES=87, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=82, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=78, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=278, PETRI_PLACES=90, PETRI_TRANSITIONS=82} [2025-02-06 18:49:42,658 INFO L279 CegarLoopForPetriNet]: 82 programPoint places, 8 predicate places. [2025-02-06 18:49:42,658 INFO L471 AbstractCegarLoop]: Abstraction has has 90 places, 82 transitions, 278 flow [2025-02-06 18:49:42,658 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 49.25) internal successors, (197), 4 states have internal predecessors, (197), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 18:49:42,658 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:49:42,658 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 18:49:42,658 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2025-02-06 18:49:42,659 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2025-02-06 18:49:42,659 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:49:42,659 INFO L85 PathProgramCache]: Analyzing trace with hash -1316037248, now seen corresponding path program 1 times [2025-02-06 18:49:42,659 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:49:42,659 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1134504651] [2025-02-06 18:49:42,659 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:49:42,659 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:49:42,662 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 13 statements into 1 equivalence classes. [2025-02-06 18:49:42,665 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 13 of 13 statements. [2025-02-06 18:49:42,665 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:49:42,665 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:49:42,708 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 18:49:42,709 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:49:42,709 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1134504651] [2025-02-06 18:49:42,709 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1134504651] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:49:42,709 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 18:49:42,709 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-06 18:49:42,709 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [289821919] [2025-02-06 18:49:42,709 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:49:42,709 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-06 18:49:42,710 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:49:42,710 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-06 18:49:42,710 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-02-06 18:49:42,737 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 43 out of 89 [2025-02-06 18:49:42,737 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 90 places, 82 transitions, 278 flow. Second operand has 6 states, 6 states have (on average 44.5) internal successors, (267), 6 states have internal predecessors, (267), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 18:49:42,737 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:49:42,737 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 43 of 89 [2025-02-06 18:49:42,737 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:49:43,746 INFO L124 PetriNetUnfolderBase]: 13072/20485 cut-off events. [2025-02-06 18:49:43,747 INFO L125 PetriNetUnfolderBase]: For 22057/23438 co-relation queries the response was YES. [2025-02-06 18:49:43,856 INFO L83 FinitePrefix]: Finished finitePrefix Result has 51859 conditions, 20485 events. 13072/20485 cut-off events. For 22057/23438 co-relation queries the response was YES. Maximal size of possible extension queue 1142. Compared 158731 event pairs, 2180 based on Foata normal form. 1931/21192 useless extension candidates. Maximal degree in co-relation 35551. Up to 5475 conditions per place. [2025-02-06 18:49:43,932 INFO L140 encePairwiseOnDemand]: 81/89 looper letters, 124 selfloop transitions, 9 changer transitions 0/166 dead transitions. [2025-02-06 18:49:43,933 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 94 places, 166 transitions, 880 flow [2025-02-06 18:49:43,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-06 18:49:43,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-02-06 18:49:43,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 365 transitions. [2025-02-06 18:49:43,934 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6835205992509363 [2025-02-06 18:49:43,934 INFO L175 Difference]: Start difference. First operand has 90 places, 82 transitions, 278 flow. Second operand 6 states and 365 transitions. [2025-02-06 18:49:43,934 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 94 places, 166 transitions, 880 flow [2025-02-06 18:49:44,014 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 91 places, 166 transitions, 854 flow, removed 0 selfloop flow, removed 3 redundant places. [2025-02-06 18:49:44,015 INFO L231 Difference]: Finished difference. Result has 92 places, 82 transitions, 295 flow [2025-02-06 18:49:44,016 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=89, PETRI_DIFFERENCE_MINUEND_FLOW=268, PETRI_DIFFERENCE_MINUEND_PLACES=86, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=81, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=72, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=295, PETRI_PLACES=92, PETRI_TRANSITIONS=82} [2025-02-06 18:49:44,016 INFO L279 CegarLoopForPetriNet]: 82 programPoint places, 10 predicate places. [2025-02-06 18:49:44,016 INFO L471 AbstractCegarLoop]: Abstraction has has 92 places, 82 transitions, 295 flow [2025-02-06 18:49:44,016 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 44.5) internal successors, (267), 6 states have internal predecessors, (267), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 18:49:44,016 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:49:44,016 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 18:49:44,017 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2025-02-06 18:49:44,017 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2025-02-06 18:49:44,017 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:49:44,017 INFO L85 PathProgramCache]: Analyzing trace with hash -1400385636, now seen corresponding path program 1 times [2025-02-06 18:49:44,017 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:49:44,017 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [247993895] [2025-02-06 18:49:44,017 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:49:44,017 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:49:44,020 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 14 statements into 1 equivalence classes. [2025-02-06 18:49:44,023 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-02-06 18:49:44,023 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:49:44,023 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:49:44,064 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 18:49:44,065 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:49:44,065 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [247993895] [2025-02-06 18:49:44,065 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [247993895] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:49:44,065 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 18:49:44,065 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-06 18:49:44,067 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [422103235] [2025-02-06 18:49:44,067 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:49:44,067 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-06 18:49:44,067 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:49:44,067 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-06 18:49:44,067 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-02-06 18:49:44,092 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 46 out of 89 [2025-02-06 18:49:44,092 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 82 transitions, 295 flow. Second operand has 5 states, 5 states have (on average 48.2) internal successors, (241), 5 states have internal predecessors, (241), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 18:49:44,092 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:49:44,092 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 46 of 89 [2025-02-06 18:49:44,092 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:49:45,103 INFO L124 PetriNetUnfolderBase]: 13320/20624 cut-off events. [2025-02-06 18:49:45,103 INFO L125 PetriNetUnfolderBase]: For 28063/30622 co-relation queries the response was YES. [2025-02-06 18:49:45,210 INFO L83 FinitePrefix]: Finished finitePrefix Result has 55206 conditions, 20624 events. 13320/20624 cut-off events. For 28063/30622 co-relation queries the response was YES. Maximal size of possible extension queue 1098. Compared 156780 event pairs, 2539 based on Foata normal form. 2053/21670 useless extension candidates. Maximal degree in co-relation 38105. Up to 9209 conditions per place. [2025-02-06 18:49:45,280 INFO L140 encePairwiseOnDemand]: 83/89 looper letters, 102 selfloop transitions, 6 changer transitions 0/139 dead transitions. [2025-02-06 18:49:45,281 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 95 places, 139 transitions, 765 flow [2025-02-06 18:49:45,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-06 18:49:45,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-02-06 18:49:45,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 314 transitions. [2025-02-06 18:49:45,282 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7056179775280899 [2025-02-06 18:49:45,282 INFO L175 Difference]: Start difference. First operand has 92 places, 82 transitions, 295 flow. Second operand 5 states and 314 transitions. [2025-02-06 18:49:45,282 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 95 places, 139 transitions, 765 flow [2025-02-06 18:49:45,373 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 91 places, 139 transitions, 734 flow, removed 0 selfloop flow, removed 4 redundant places. [2025-02-06 18:49:45,374 INFO L231 Difference]: Finished difference. Result has 91 places, 81 transitions, 292 flow [2025-02-06 18:49:45,374 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=89, PETRI_DIFFERENCE_MINUEND_FLOW=280, PETRI_DIFFERENCE_MINUEND_PLACES=87, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=81, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=75, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=292, PETRI_PLACES=91, PETRI_TRANSITIONS=81} [2025-02-06 18:49:45,374 INFO L279 CegarLoopForPetriNet]: 82 programPoint places, 9 predicate places. [2025-02-06 18:49:45,374 INFO L471 AbstractCegarLoop]: Abstraction has has 91 places, 81 transitions, 292 flow [2025-02-06 18:49:45,375 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 48.2) internal successors, (241), 5 states have internal predecessors, (241), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 18:49:45,375 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:49:45,375 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 18:49:45,375 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2025-02-06 18:49:45,375 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting thread3Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2025-02-06 18:49:45,375 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:49:45,375 INFO L85 PathProgramCache]: Analyzing trace with hash -1400384643, now seen corresponding path program 1 times [2025-02-06 18:49:45,376 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:49:45,376 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [456085921] [2025-02-06 18:49:45,376 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:49:45,376 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:49:45,379 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 14 statements into 1 equivalence classes. [2025-02-06 18:49:45,381 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-02-06 18:49:45,381 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:49:45,381 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:49:45,411 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 18:49:45,411 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:49:45,411 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [456085921] [2025-02-06 18:49:45,411 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [456085921] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:49:45,411 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 18:49:45,411 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-06 18:49:45,411 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [321426420] [2025-02-06 18:49:45,411 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:49:45,412 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-06 18:49:45,412 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:49:45,412 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-06 18:49:45,412 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-02-06 18:49:45,427 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 45 out of 89 [2025-02-06 18:49:45,427 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 91 places, 81 transitions, 292 flow. Second operand has 4 states, 4 states have (on average 47.5) internal successors, (190), 4 states have internal predecessors, (190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 18:49:45,427 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:49:45,427 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 45 of 89 [2025-02-06 18:49:45,428 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:49:46,293 INFO L124 PetriNetUnfolderBase]: 10843/18293 cut-off events. [2025-02-06 18:49:46,293 INFO L125 PetriNetUnfolderBase]: For 22101/23984 co-relation queries the response was YES. [2025-02-06 18:49:46,517 INFO L83 FinitePrefix]: Finished finitePrefix Result has 46999 conditions, 18293 events. 10843/18293 cut-off events. For 22101/23984 co-relation queries the response was YES. Maximal size of possible extension queue 1009. Compared 152976 event pairs, 4871 based on Foata normal form. 1861/19124 useless extension candidates. Maximal degree in co-relation 32425. Up to 9101 conditions per place. [2025-02-06 18:49:46,565 INFO L140 encePairwiseOnDemand]: 84/89 looper letters, 104 selfloop transitions, 4 changer transitions 0/139 dead transitions. [2025-02-06 18:49:46,565 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 94 places, 139 transitions, 742 flow [2025-02-06 18:49:46,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-06 18:49:46,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-02-06 18:49:46,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 265 transitions. [2025-02-06 18:49:46,566 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7443820224719101 [2025-02-06 18:49:46,566 INFO L175 Difference]: Start difference. First operand has 91 places, 81 transitions, 292 flow. Second operand 4 states and 265 transitions. [2025-02-06 18:49:46,566 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 94 places, 139 transitions, 742 flow [2025-02-06 18:49:46,620 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 90 places, 139 transitions, 730 flow, removed 0 selfloop flow, removed 4 redundant places. [2025-02-06 18:49:46,621 INFO L231 Difference]: Finished difference. Result has 90 places, 80 transitions, 282 flow [2025-02-06 18:49:46,621 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=89, PETRI_DIFFERENCE_MINUEND_FLOW=274, PETRI_DIFFERENCE_MINUEND_PLACES=87, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=80, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=76, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=282, PETRI_PLACES=90, PETRI_TRANSITIONS=80} [2025-02-06 18:49:46,622 INFO L279 CegarLoopForPetriNet]: 82 programPoint places, 8 predicate places. [2025-02-06 18:49:46,622 INFO L471 AbstractCegarLoop]: Abstraction has has 90 places, 80 transitions, 282 flow [2025-02-06 18:49:46,622 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 47.5) internal successors, (190), 4 states have internal predecessors, (190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 18:49:46,622 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:49:46,622 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 18:49:46,622 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2025-02-06 18:49:46,622 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2025-02-06 18:49:46,623 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:49:46,623 INFO L85 PathProgramCache]: Analyzing trace with hash -1223759528, now seen corresponding path program 1 times [2025-02-06 18:49:46,623 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:49:46,623 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [615868823] [2025-02-06 18:49:46,623 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:49:46,623 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:49:46,635 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 14 statements into 1 equivalence classes. [2025-02-06 18:49:46,637 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-02-06 18:49:46,637 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:49:46,637 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:49:46,689 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 18:49:46,690 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:49:46,690 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [615868823] [2025-02-06 18:49:46,693 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [615868823] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:49:46,694 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 18:49:46,694 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-06 18:49:46,694 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1255659468] [2025-02-06 18:49:46,694 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:49:46,694 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-06 18:49:46,694 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:49:46,694 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-06 18:49:46,694 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-02-06 18:49:46,714 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 45 out of 89 [2025-02-06 18:49:46,714 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 90 places, 80 transitions, 282 flow. Second operand has 4 states, 4 states have (on average 47.25) internal successors, (189), 4 states have internal predecessors, (189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 18:49:46,714 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:49:46,714 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 45 of 89 [2025-02-06 18:49:46,714 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:49:47,715 INFO L124 PetriNetUnfolderBase]: 12976/20345 cut-off events. [2025-02-06 18:49:47,716 INFO L125 PetriNetUnfolderBase]: For 24267/25768 co-relation queries the response was YES. [2025-02-06 18:49:47,836 INFO L83 FinitePrefix]: Finished finitePrefix Result has 53068 conditions, 20345 events. 12976/20345 cut-off events. For 24267/25768 co-relation queries the response was YES. Maximal size of possible extension queue 1110. Compared 157767 event pairs, 4595 based on Foata normal form. 1776/21088 useless extension candidates. Maximal degree in co-relation 36316. Up to 8717 conditions per place. [2025-02-06 18:49:47,916 INFO L140 encePairwiseOnDemand]: 84/89 looper letters, 100 selfloop transitions, 5 changer transitions 0/136 dead transitions. [2025-02-06 18:49:47,917 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 92 places, 136 transitions, 714 flow [2025-02-06 18:49:47,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-06 18:49:47,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-02-06 18:49:47,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 265 transitions. [2025-02-06 18:49:47,918 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7443820224719101 [2025-02-06 18:49:47,918 INFO L175 Difference]: Start difference. First operand has 90 places, 80 transitions, 282 flow. Second operand 4 states and 265 transitions. [2025-02-06 18:49:47,918 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 92 places, 136 transitions, 714 flow [2025-02-06 18:49:47,959 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 90 places, 136 transitions, 698 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-02-06 18:49:47,960 INFO L231 Difference]: Finished difference. Result has 91 places, 80 transitions, 290 flow [2025-02-06 18:49:47,960 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=89, PETRI_DIFFERENCE_MINUEND_FLOW=270, PETRI_DIFFERENCE_MINUEND_PLACES=87, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=79, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=74, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=290, PETRI_PLACES=91, PETRI_TRANSITIONS=80} [2025-02-06 18:49:47,960 INFO L279 CegarLoopForPetriNet]: 82 programPoint places, 9 predicate places. [2025-02-06 18:49:47,960 INFO L471 AbstractCegarLoop]: Abstraction has has 91 places, 80 transitions, 290 flow [2025-02-06 18:49:47,961 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 47.25) internal successors, (189), 4 states have internal predecessors, (189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 18:49:47,961 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:49:47,961 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 18:49:47,961 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2025-02-06 18:49:47,961 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2025-02-06 18:49:47,961 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:49:47,962 INFO L85 PathProgramCache]: Analyzing trace with hash -462281170, now seen corresponding path program 1 times [2025-02-06 18:49:47,962 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:49:47,962 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [855043145] [2025-02-06 18:49:47,962 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:49:47,962 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:49:47,969 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 15 statements into 1 equivalence classes. [2025-02-06 18:49:47,971 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 15 of 15 statements. [2025-02-06 18:49:47,975 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:49:47,975 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:49:48,025 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 18:49:48,025 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:49:48,025 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [855043145] [2025-02-06 18:49:48,025 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [855043145] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:49:48,025 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 18:49:48,025 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-06 18:49:48,026 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1978063195] [2025-02-06 18:49:48,026 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:49:48,026 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-06 18:49:48,026 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:49:48,026 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-06 18:49:48,027 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-02-06 18:49:48,047 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 43 out of 89 [2025-02-06 18:49:48,047 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 91 places, 80 transitions, 290 flow. Second operand has 6 states, 6 states have (on average 44.833333333333336) internal successors, (269), 6 states have internal predecessors, (269), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 18:49:48,048 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:49:48,048 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 43 of 89 [2025-02-06 18:49:48,048 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:49:49,140 INFO L124 PetriNetUnfolderBase]: 14136/21737 cut-off events. [2025-02-06 18:49:49,140 INFO L125 PetriNetUnfolderBase]: For 32592/34747 co-relation queries the response was YES. [2025-02-06 18:49:49,236 INFO L83 FinitePrefix]: Finished finitePrefix Result has 59618 conditions, 21737 events. 14136/21737 cut-off events. For 32592/34747 co-relation queries the response was YES. Maximal size of possible extension queue 1175. Compared 165180 event pairs, 2778 based on Foata normal form. 2709/23357 useless extension candidates. Maximal degree in co-relation 44794. Up to 5672 conditions per place. [2025-02-06 18:49:49,308 INFO L140 encePairwiseOnDemand]: 81/89 looper letters, 132 selfloop transitions, 9 changer transitions 0/170 dead transitions. [2025-02-06 18:49:49,308 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 95 places, 170 transitions, 980 flow [2025-02-06 18:49:49,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-06 18:49:49,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-02-06 18:49:49,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 362 transitions. [2025-02-06 18:49:49,309 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6779026217228464 [2025-02-06 18:49:49,310 INFO L175 Difference]: Start difference. First operand has 91 places, 80 transitions, 290 flow. Second operand 6 states and 362 transitions. [2025-02-06 18:49:49,310 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 95 places, 170 transitions, 980 flow [2025-02-06 18:49:49,385 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 94 places, 170 transitions, 964 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-02-06 18:49:49,386 INFO L231 Difference]: Finished difference. Result has 95 places, 80 transitions, 311 flow [2025-02-06 18:49:49,386 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=89, PETRI_DIFFERENCE_MINUEND_FLOW=284, PETRI_DIFFERENCE_MINUEND_PLACES=89, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=79, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=70, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=311, PETRI_PLACES=95, PETRI_TRANSITIONS=80} [2025-02-06 18:49:49,386 INFO L279 CegarLoopForPetriNet]: 82 programPoint places, 13 predicate places. [2025-02-06 18:49:49,387 INFO L471 AbstractCegarLoop]: Abstraction has has 95 places, 80 transitions, 311 flow [2025-02-06 18:49:49,387 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 44.833333333333336) internal successors, (269), 6 states have internal predecessors, (269), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 18:49:49,387 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:49:49,387 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 18:49:49,387 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2025-02-06 18:49:49,387 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting thread3Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2025-02-06 18:49:49,388 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:49:49,388 INFO L85 PathProgramCache]: Analyzing trace with hash -527124861, now seen corresponding path program 1 times [2025-02-06 18:49:49,388 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:49:49,388 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1135557091] [2025-02-06 18:49:49,388 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:49:49,388 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:49:49,391 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 16 statements into 1 equivalence classes. [2025-02-06 18:49:49,394 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 16 of 16 statements. [2025-02-06 18:49:49,394 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:49:49,394 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:49:49,449 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 18:49:49,449 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:49:49,449 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1135557091] [2025-02-06 18:49:49,449 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1135557091] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:49:49,450 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 18:49:49,450 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-06 18:49:49,450 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1195487190] [2025-02-06 18:49:49,450 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:49:49,450 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-06 18:49:49,451 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:49:49,452 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-06 18:49:49,452 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-02-06 18:49:49,478 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 43 out of 89 [2025-02-06 18:49:49,478 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 95 places, 80 transitions, 311 flow. Second operand has 5 states, 5 states have (on average 45.4) internal successors, (227), 5 states have internal predecessors, (227), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 18:49:49,478 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:49:49,478 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 43 of 89 [2025-02-06 18:49:49,478 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:49:50,596 INFO L124 PetriNetUnfolderBase]: 14136/21078 cut-off events. [2025-02-06 18:49:50,597 INFO L125 PetriNetUnfolderBase]: For 33451/35565 co-relation queries the response was YES. [2025-02-06 18:49:50,724 INFO L83 FinitePrefix]: Finished finitePrefix Result has 61197 conditions, 21078 events. 14136/21078 cut-off events. For 33451/35565 co-relation queries the response was YES. Maximal size of possible extension queue 1138. Compared 153309 event pairs, 5330 based on Foata normal form. 2391/22865 useless extension candidates. Maximal degree in co-relation 46225. Up to 10143 conditions per place. [2025-02-06 18:49:50,749 INFO L140 encePairwiseOnDemand]: 82/89 looper letters, 0 selfloop transitions, 0 changer transitions 201/201 dead transitions. [2025-02-06 18:49:50,749 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 99 places, 201 transitions, 1189 flow [2025-02-06 18:49:50,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-06 18:49:50,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-02-06 18:49:50,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 388 transitions. [2025-02-06 18:49:50,750 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7265917602996255 [2025-02-06 18:49:50,750 INFO L175 Difference]: Start difference. First operand has 95 places, 80 transitions, 311 flow. Second operand 6 states and 388 transitions. [2025-02-06 18:49:50,751 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 99 places, 201 transitions, 1189 flow [2025-02-06 18:49:51,079 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 94 places, 201 transitions, 1171 flow, removed 1 selfloop flow, removed 5 redundant places. [2025-02-06 18:49:51,080 INFO L231 Difference]: Finished difference. Result has 94 places, 0 transitions, 0 flow [2025-02-06 18:49:51,080 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=89, PETRI_DIFFERENCE_MINUEND_FLOW=287, PETRI_DIFFERENCE_MINUEND_PLACES=89, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=79, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=79, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=94, PETRI_TRANSITIONS=0} [2025-02-06 18:49:51,081 INFO L279 CegarLoopForPetriNet]: 82 programPoint places, 12 predicate places. [2025-02-06 18:49:51,081 INFO L471 AbstractCegarLoop]: Abstraction has has 94 places, 0 transitions, 0 flow [2025-02-06 18:49:51,081 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 45.4) internal successors, (227), 5 states have internal predecessors, (227), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 18:49:51,084 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (38 of 39 remaining) [2025-02-06 18:49:51,084 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (37 of 39 remaining) [2025-02-06 18:49:51,085 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (36 of 39 remaining) [2025-02-06 18:49:51,085 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (35 of 39 remaining) [2025-02-06 18:49:51,085 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (34 of 39 remaining) [2025-02-06 18:49:51,085 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (33 of 39 remaining) [2025-02-06 18:49:51,085 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (32 of 39 remaining) [2025-02-06 18:49:51,085 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (31 of 39 remaining) [2025-02-06 18:49:51,085 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (30 of 39 remaining) [2025-02-06 18:49:51,085 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (29 of 39 remaining) [2025-02-06 18:49:51,085 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (28 of 39 remaining) [2025-02-06 18:49:51,085 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (27 of 39 remaining) [2025-02-06 18:49:51,085 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (26 of 39 remaining) [2025-02-06 18:49:51,085 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (25 of 39 remaining) [2025-02-06 18:49:51,085 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (24 of 39 remaining) [2025-02-06 18:49:51,085 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 39 remaining) [2025-02-06 18:49:51,085 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 39 remaining) [2025-02-06 18:49:51,085 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 39 remaining) [2025-02-06 18:49:51,086 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (20 of 39 remaining) [2025-02-06 18:49:51,086 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (19 of 39 remaining) [2025-02-06 18:49:51,086 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (18 of 39 remaining) [2025-02-06 18:49:51,086 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 39 remaining) [2025-02-06 18:49:51,086 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 39 remaining) [2025-02-06 18:49:51,086 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 39 remaining) [2025-02-06 18:49:51,086 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 39 remaining) [2025-02-06 18:49:51,086 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 39 remaining) [2025-02-06 18:49:51,086 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 39 remaining) [2025-02-06 18:49:51,086 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 39 remaining) [2025-02-06 18:49:51,086 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 39 remaining) [2025-02-06 18:49:51,086 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 39 remaining) [2025-02-06 18:49:51,086 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 39 remaining) [2025-02-06 18:49:51,086 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 39 remaining) [2025-02-06 18:49:51,086 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 39 remaining) [2025-02-06 18:49:51,086 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 39 remaining) [2025-02-06 18:49:51,086 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 39 remaining) [2025-02-06 18:49:51,086 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 39 remaining) [2025-02-06 18:49:51,086 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 39 remaining) [2025-02-06 18:49:51,086 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 39 remaining) [2025-02-06 18:49:51,086 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 39 remaining) [2025-02-06 18:49:51,086 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2025-02-06 18:49:51,087 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 18:49:51,091 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-02-06 18:49:51,092 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-02-06 18:49:51,096 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.02 06:49:51 BasicIcfg [2025-02-06 18:49:51,096 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-02-06 18:49:51,096 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-02-06 18:49:51,096 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-02-06 18:49:51,097 INFO L274 PluginConnector]: Witness Printer initialized [2025-02-06 18:49:51,097 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 06:49:27" (3/4) ... [2025-02-06 18:49:51,099 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-02-06 18:49:51,102 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure thread1 [2025-02-06 18:49:51,102 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure thread2 [2025-02-06 18:49:51,102 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure thread3 [2025-02-06 18:49:51,107 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 53 nodes and edges [2025-02-06 18:49:51,108 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 22 nodes and edges [2025-02-06 18:49:51,109 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2025-02-06 18:49:51,109 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2025-02-06 18:49:51,173 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-02-06 18:49:51,173 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.yml [2025-02-06 18:49:51,173 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-02-06 18:49:51,174 INFO L158 Benchmark]: Toolchain (without parser) took 24207.18ms. Allocated memory was 167.8MB in the beginning and 3.0GB in the end (delta: 2.8GB). Free memory was 123.7MB in the beginning and 2.7GB in the end (delta: -2.5GB). Peak memory consumption was 304.8MB. Max. memory is 16.1GB. [2025-02-06 18:49:51,174 INFO L158 Benchmark]: CDTParser took 0.57ms. Allocated memory is still 201.3MB. Free memory is still 121.6MB. There was no memory consumed. Max. memory is 16.1GB. [2025-02-06 18:49:51,174 INFO L158 Benchmark]: CACSL2BoogieTranslator took 193.38ms. Allocated memory is still 167.8MB. Free memory was 123.7MB in the beginning and 112.3MB in the end (delta: 11.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-06 18:49:51,175 INFO L158 Benchmark]: Boogie Procedure Inliner took 24.92ms. Allocated memory is still 167.8MB. Free memory was 112.3MB in the beginning and 110.2MB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-06 18:49:51,175 INFO L158 Benchmark]: Boogie Preprocessor took 23.37ms. Allocated memory is still 167.8MB. Free memory was 110.2MB in the beginning and 108.6MB in the end (delta: 1.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-06 18:49:51,175 INFO L158 Benchmark]: IcfgBuilder took 690.04ms. Allocated memory is still 167.8MB. Free memory was 108.6MB in the beginning and 64.7MB in the end (delta: 43.9MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2025-02-06 18:49:51,175 INFO L158 Benchmark]: TraceAbstraction took 23190.08ms. Allocated memory was 167.8MB in the beginning and 3.0GB in the end (delta: 2.8GB). Free memory was 64.1MB in the beginning and 2.7GB in the end (delta: -2.6GB). Peak memory consumption was 1.5GB. Max. memory is 16.1GB. [2025-02-06 18:49:51,175 INFO L158 Benchmark]: Witness Printer took 76.75ms. Allocated memory is still 3.0GB. Free memory was 2.7GB in the beginning and 2.7GB in the end (delta: 4.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-06 18:49:51,176 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.57ms. Allocated memory is still 201.3MB. Free memory is still 121.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 193.38ms. Allocated memory is still 167.8MB. Free memory was 123.7MB in the beginning and 112.3MB in the end (delta: 11.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 24.92ms. Allocated memory is still 167.8MB. Free memory was 112.3MB in the beginning and 110.2MB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 23.37ms. Allocated memory is still 167.8MB. Free memory was 110.2MB in the beginning and 108.6MB in the end (delta: 1.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * IcfgBuilder took 690.04ms. Allocated memory is still 167.8MB. Free memory was 108.6MB in the beginning and 64.7MB in the end (delta: 43.9MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * TraceAbstraction took 23190.08ms. Allocated memory was 167.8MB in the beginning and 3.0GB in the end (delta: 2.8GB). Free memory was 64.1MB in the beginning and 2.7GB in the end (delta: -2.6GB). Peak memory consumption was 1.5GB. Max. memory is 16.1GB. * Witness Printer took 76.75ms. Allocated memory is still 3.0GB. Free memory was 2.7GB in the beginning and 2.7GB in the end (delta: 4.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 86]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 86]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 87]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 88]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 87]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 88]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 86]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 86]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 87]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 88]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 87]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 88]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 86]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 86]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 87]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 88]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 87]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 88]: 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 7 procedures, 147 locations, 39 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: 23.1s, OverallIterations: 20, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 21.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1962 SdHoareTripleChecker+Valid, 2.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1676 mSDsluCounter, 217 SdHoareTripleChecker+Invalid, 2.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 111 mSDsCounter, 99 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3947 IncrementalHoareTripleChecker+Invalid, 4046 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 99 mSolverCounterUnsat, 106 mSDtfsCounter, 3947 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 84 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=311occurred in iteration=19, InterpolantAutomatonStates: 93, 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, 0.9s InterpolantComputationTime, 232 NumberOfCodeBlocks, 232 NumberOfCodeBlocksAsserted, 20 NumberOfCheckSat, 212 ConstructedInterpolants, 0 QuantifiedInterpolants, 707 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 20 InterpolantComputations, 20 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 18 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2025-02-06 18:49:51,198 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE