./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/goblint-regression/06-symbeq_05-funloop_hard2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 8be7027f Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/goblint-regression/06-symbeq_05-funloop_hard2.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 9e83a031749850377e0f1ecd2c361048b8f87f697f146600048034d31c93bd9a --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dk.perfect-tracechecks-8be7027-m [2024-11-12 20:36:52,901 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-12 20:36:52,974 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-12 20:36:52,979 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-12 20:36:52,979 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-12 20:36:53,009 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-12 20:36:53,010 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-12 20:36:53,011 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-12 20:36:53,012 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-12 20:36:53,013 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-12 20:36:53,013 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-12 20:36:53,014 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-12 20:36:53,014 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-12 20:36:53,015 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-12 20:36:53,016 INFO L153 SettingsManager]: * Use SBE=true [2024-11-12 20:36:53,017 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-12 20:36:53,017 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-12 20:36:53,018 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-12 20:36:53,018 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-12 20:36:53,018 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-12 20:36:53,022 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-12 20:36:53,023 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-12 20:36:53,023 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-12 20:36:53,023 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-12 20:36:53,023 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-12 20:36:53,024 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-12 20:36:53,024 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-12 20:36:53,024 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-12 20:36:53,024 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-12 20:36:53,025 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-12 20:36:53,025 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-12 20:36:53,025 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-12 20:36:53,025 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-12 20:36:53,025 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-12 20:36:53,026 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-12 20:36:53,026 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-12 20:36:53,026 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-12 20:36:53,027 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-12 20:36:53,027 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-12 20:36:53,027 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-12 20:36:53,027 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-12 20:36:53,028 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-12 20:36:53,029 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-12 20:36:53,029 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-12 20:36:53,030 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9e83a031749850377e0f1ecd2c361048b8f87f697f146600048034d31c93bd9a [2024-11-12 20:36:53,309 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-12 20:36:53,333 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-12 20:36:53,337 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-12 20:36:53,338 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-12 20:36:53,339 INFO L274 PluginConnector]: CDTParser initialized [2024-11-12 20:36:53,340 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/06-symbeq_05-funloop_hard2.i [2024-11-12 20:36:54,759 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-12 20:36:55,071 INFO L384 CDTParser]: Found 1 translation units. [2024-11-12 20:36:55,071 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/06-symbeq_05-funloop_hard2.i [2024-11-12 20:36:55,087 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2a731bd2c/6675deb986344319b629ab9bfc448683/FLAG2f7256255 [2024-11-12 20:36:55,103 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2a731bd2c/6675deb986344319b629ab9bfc448683 [2024-11-12 20:36:55,106 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-12 20:36:55,108 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-12 20:36:55,110 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-12 20:36:55,111 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-12 20:36:55,116 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-12 20:36:55,116 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 08:36:55" (1/1) ... [2024-11-12 20:36:55,119 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3da8884d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:36:55, skipping insertion in model container [2024-11-12 20:36:55,119 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 08:36:55" (1/1) ... [2024-11-12 20:36:55,168 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-12 20:36:55,639 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-12 20:36:55,690 INFO L200 MainTranslator]: Completed pre-run [2024-11-12 20:36:55,742 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-12 20:36:55,806 INFO L204 MainTranslator]: Completed translation [2024-11-12 20:36:55,806 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:36:55 WrapperNode [2024-11-12 20:36:55,806 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-12 20:36:55,808 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-12 20:36:55,808 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-12 20:36:55,808 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-12 20:36:55,816 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:36:55" (1/1) ... [2024-11-12 20:36:55,841 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:36:55" (1/1) ... [2024-11-12 20:36:55,878 INFO L138 Inliner]: procedures = 263, calls = 74, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 155 [2024-11-12 20:36:55,879 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-12 20:36:55,879 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-12 20:36:55,879 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-12 20:36:55,880 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-12 20:36:55,894 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:36:55" (1/1) ... [2024-11-12 20:36:55,895 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:36:55" (1/1) ... [2024-11-12 20:36:55,902 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:36:55" (1/1) ... [2024-11-12 20:36:55,931 INFO L175 MemorySlicer]: Split 66 memory accesses to 1 slices as follows [66]. 100 percent of accesses are in the largest equivalence class. The 60 initializations are split as follows [60]. The 3 writes are split as follows [3]. [2024-11-12 20:36:55,932 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:36:55" (1/1) ... [2024-11-12 20:36:55,932 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:36:55" (1/1) ... [2024-11-12 20:36:55,941 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:36:55" (1/1) ... [2024-11-12 20:36:55,948 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:36:55" (1/1) ... [2024-11-12 20:36:55,953 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:36:55" (1/1) ... [2024-11-12 20:36:55,955 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:36:55" (1/1) ... [2024-11-12 20:36:55,961 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-12 20:36:55,962 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-12 20:36:55,966 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-12 20:36:55,966 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-12 20:36:55,967 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:36:55" (1/1) ... [2024-11-12 20:36:55,973 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-12 20:36:55,986 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 20:36:56,005 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-12 20:36:56,012 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-12 20:36:56,060 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-12 20:36:56,060 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-12 20:36:56,060 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-12 20:36:56,060 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-12 20:36:56,061 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-12 20:36:56,061 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-11-12 20:36:56,061 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-11-12 20:36:56,061 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-12 20:36:56,061 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-12 20:36:56,062 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-12 20:36:56,064 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-12 20:36:56,198 INFO L238 CfgBuilder]: Building ICFG [2024-11-12 20:36:56,200 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-12 20:36:56,496 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-12 20:36:56,496 INFO L287 CfgBuilder]: Performing block encoding [2024-11-12 20:36:56,856 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-12 20:36:56,857 INFO L316 CfgBuilder]: Removed 3 assume(true) statements. [2024-11-12 20:36:56,858 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 08:36:56 BoogieIcfgContainer [2024-11-12 20:36:56,858 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-12 20:36:56,860 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-12 20:36:56,861 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-12 20:36:56,864 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-12 20:36:56,864 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 08:36:55" (1/3) ... [2024-11-12 20:36:56,865 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37c0e350 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 08:36:56, skipping insertion in model container [2024-11-12 20:36:56,866 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:36:55" (2/3) ... [2024-11-12 20:36:56,867 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37c0e350 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 08:36:56, skipping insertion in model container [2024-11-12 20:36:56,867 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 08:36:56" (3/3) ... [2024-11-12 20:36:56,868 INFO L112 eAbstractionObserver]: Analyzing ICFG 06-symbeq_05-funloop_hard2.i [2024-11-12 20:36:56,886 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-12 20:36:56,887 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 12 error locations. [2024-11-12 20:36:56,888 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-12 20:36:56,936 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-12 20:36:56,973 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 48 places, 47 transitions, 98 flow [2024-11-12 20:36:57,000 INFO L124 PetriNetUnfolderBase]: 3/46 cut-off events. [2024-11-12 20:36:57,000 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-12 20:36:57,003 INFO L83 FinitePrefix]: Finished finitePrefix Result has 50 conditions, 46 events. 3/46 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 111 event pairs, 0 based on Foata normal form. 0/31 useless extension candidates. Maximal degree in co-relation 38. Up to 2 conditions per place. [2024-11-12 20:36:57,004 INFO L82 GeneralOperation]: Start removeDead. Operand has 48 places, 47 transitions, 98 flow [2024-11-12 20:36:57,007 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 47 places, 46 transitions, 95 flow [2024-11-12 20:36:57,015 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-12 20:36:57,023 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;@569b5314, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-12 20:36:57,025 INFO L334 AbstractCegarLoop]: Starting to check reachability of 17 error locations. [2024-11-12 20:36:57,030 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-12 20:36:57,031 INFO L124 PetriNetUnfolderBase]: 0/3 cut-off events. [2024-11-12 20:36:57,031 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-12 20:36:57,031 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 20:36:57,032 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2024-11-12 20:36:57,033 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2024-11-12 20:36:57,040 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 20:36:57,040 INFO L85 PathProgramCache]: Analyzing trace with hash 406437, now seen corresponding path program 1 times [2024-11-12 20:36:57,049 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 20:36:57,050 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [37300210] [2024-11-12 20:36:57,050 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 20:36:57,051 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 20:36:57,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 20:36:57,452 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 20:36:57,452 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 20:36:57,452 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [37300210] [2024-11-12 20:36:57,453 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [37300210] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 20:36:57,453 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 20:36:57,453 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-12 20:36:57,462 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1920816443] [2024-11-12 20:36:57,463 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 20:36:57,490 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-12 20:36:57,501 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 20:36:57,532 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-12 20:36:57,533 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-12 20:36:57,550 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 47 [2024-11-12 20:36:57,553 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 46 transitions, 95 flow. Second operand has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 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) [2024-11-12 20:36:57,553 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 20:36:57,553 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 47 [2024-11-12 20:36:57,555 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 20:36:57,770 INFO L124 PetriNetUnfolderBase]: 128/386 cut-off events. [2024-11-12 20:36:57,770 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-12 20:36:57,773 INFO L83 FinitePrefix]: Finished finitePrefix Result has 652 conditions, 386 events. 128/386 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 2038 event pairs, 104 based on Foata normal form. 1/317 useless extension candidates. Maximal degree in co-relation 627. Up to 260 conditions per place. [2024-11-12 20:36:57,776 INFO L140 encePairwiseOnDemand]: 41/47 looper letters, 29 selfloop transitions, 3 changer transitions 0/48 dead transitions. [2024-11-12 20:36:57,776 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 48 transitions, 163 flow [2024-11-12 20:36:57,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-12 20:36:57,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-12 20:36:57,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 103 transitions. [2024-11-12 20:36:57,790 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5478723404255319 [2024-11-12 20:36:57,791 INFO L175 Difference]: Start difference. First operand has 47 places, 46 transitions, 95 flow. Second operand 4 states and 103 transitions. [2024-11-12 20:36:57,792 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 48 transitions, 163 flow [2024-11-12 20:36:57,794 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 48 transitions, 162 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-12 20:36:57,796 INFO L231 Difference]: Finished difference. Result has 51 places, 48 transitions, 118 flow [2024-11-12 20:36:57,799 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=94, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=118, PETRI_PLACES=51, PETRI_TRANSITIONS=48} [2024-11-12 20:36:57,802 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, 4 predicate places. [2024-11-12 20:36:57,802 INFO L471 AbstractCegarLoop]: Abstraction has has 51 places, 48 transitions, 118 flow [2024-11-12 20:36:57,804 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 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) [2024-11-12 20:36:57,805 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 20:36:57,805 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1] [2024-11-12 20:36:57,805 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-12 20:36:57,805 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2024-11-12 20:36:57,806 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 20:36:57,806 INFO L85 PathProgramCache]: Analyzing trace with hash -776355770, now seen corresponding path program 1 times [2024-11-12 20:36:57,806 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 20:36:57,806 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [275190039] [2024-11-12 20:36:57,807 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 20:36:57,807 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 20:36:57,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 20:36:57,941 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 20:36:57,941 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 20:36:57,941 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [275190039] [2024-11-12 20:36:57,942 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [275190039] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-12 20:36:57,942 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1154584832] [2024-11-12 20:36:57,942 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 20:36:57,942 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 20:36:57,942 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 20:36:57,944 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-12 20:36:57,946 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-12 20:36:58,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 20:36:58,026 INFO L256 TraceCheckSpWp]: Trace formula consists of 154 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-12 20:36:58,030 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 20:36:58,078 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 20:36:58,079 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-12 20:36:58,079 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1154584832] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 20:36:58,079 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-12 20:36:58,079 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2024-11-12 20:36:58,080 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [434965095] [2024-11-12 20:36:58,080 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 20:36:58,081 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-12 20:36:58,081 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 20:36:58,082 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-12 20:36:58,082 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-12 20:36:58,091 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 47 [2024-11-12 20:36:58,092 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 48 transitions, 118 flow. Second operand has 6 states, 6 states have (on average 17.833333333333332) internal successors, (107), 6 states have internal predecessors, (107), 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) [2024-11-12 20:36:58,092 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 20:36:58,092 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 47 [2024-11-12 20:36:58,092 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 20:36:58,234 INFO L124 PetriNetUnfolderBase]: 128/385 cut-off events. [2024-11-12 20:36:58,235 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-11-12 20:36:58,236 INFO L83 FinitePrefix]: Finished finitePrefix Result has 661 conditions, 385 events. 128/385 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 2026 event pairs, 104 based on Foata normal form. 1/316 useless extension candidates. Maximal degree in co-relation 644. Up to 255 conditions per place. [2024-11-12 20:36:58,238 INFO L140 encePairwiseOnDemand]: 42/47 looper letters, 25 selfloop transitions, 6 changer transitions 0/47 dead transitions. [2024-11-12 20:36:58,239 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 47 transitions, 176 flow [2024-11-12 20:36:58,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-12 20:36:58,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-12 20:36:58,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 134 transitions. [2024-11-12 20:36:58,241 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.475177304964539 [2024-11-12 20:36:58,241 INFO L175 Difference]: Start difference. First operand has 51 places, 48 transitions, 118 flow. Second operand 6 states and 134 transitions. [2024-11-12 20:36:58,241 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 47 transitions, 176 flow [2024-11-12 20:36:58,242 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 47 transitions, 174 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-12 20:36:58,243 INFO L231 Difference]: Finished difference. Result has 54 places, 47 transitions, 124 flow [2024-11-12 20:36:58,243 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=112, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=124, PETRI_PLACES=54, PETRI_TRANSITIONS=47} [2024-11-12 20:36:58,244 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, 7 predicate places. [2024-11-12 20:36:58,244 INFO L471 AbstractCegarLoop]: Abstraction has has 54 places, 47 transitions, 124 flow [2024-11-12 20:36:58,245 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 17.833333333333332) internal successors, (107), 6 states have internal predecessors, (107), 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) [2024-11-12 20:36:58,245 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 20:36:58,245 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1] [2024-11-12 20:36:58,263 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-12 20:36:58,449 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 20:36:58,450 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2024-11-12 20:36:58,451 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 20:36:58,451 INFO L85 PathProgramCache]: Analyzing trace with hash 1702775290, now seen corresponding path program 1 times [2024-11-12 20:36:58,451 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 20:36:58,451 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1320217534] [2024-11-12 20:36:58,451 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 20:36:58,452 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 20:36:58,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 20:36:58,492 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-12 20:36:58,492 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 20:36:58,492 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1320217534] [2024-11-12 20:36:58,492 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1320217534] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 20:36:58,492 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 20:36:58,492 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-12 20:36:58,493 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1567700405] [2024-11-12 20:36:58,493 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 20:36:58,493 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-12 20:36:58,493 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 20:36:58,494 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-12 20:36:58,494 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-12 20:36:58,499 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 47 [2024-11-12 20:36:58,499 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 47 transitions, 124 flow. Second operand has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 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) [2024-11-12 20:36:58,499 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 20:36:58,499 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 47 [2024-11-12 20:36:58,499 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 20:36:58,585 INFO L124 PetriNetUnfolderBase]: 128/384 cut-off events. [2024-11-12 20:36:58,585 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2024-11-12 20:36:58,587 INFO L83 FinitePrefix]: Finished finitePrefix Result has 663 conditions, 384 events. 128/384 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 2023 event pairs, 104 based on Foata normal form. 1/316 useless extension candidates. Maximal degree in co-relation 640. Up to 258 conditions per place. [2024-11-12 20:36:58,589 INFO L140 encePairwiseOnDemand]: 44/47 looper letters, 26 selfloop transitions, 4 changer transitions 0/46 dead transitions. [2024-11-12 20:36:58,589 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 46 transitions, 180 flow [2024-11-12 20:36:58,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-12 20:36:58,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-12 20:36:58,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 80 transitions. [2024-11-12 20:36:58,590 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5673758865248227 [2024-11-12 20:36:58,590 INFO L175 Difference]: Start difference. First operand has 54 places, 47 transitions, 124 flow. Second operand 3 states and 80 transitions. [2024-11-12 20:36:58,590 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 46 transitions, 180 flow [2024-11-12 20:36:58,591 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 46 transitions, 158 flow, removed 3 selfloop flow, removed 6 redundant places. [2024-11-12 20:36:58,592 INFO L231 Difference]: Finished difference. Result has 49 places, 46 transitions, 106 flow [2024-11-12 20:36:58,592 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=98, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=106, PETRI_PLACES=49, PETRI_TRANSITIONS=46} [2024-11-12 20:36:58,593 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, 2 predicate places. [2024-11-12 20:36:58,593 INFO L471 AbstractCegarLoop]: Abstraction has has 49 places, 46 transitions, 106 flow [2024-11-12 20:36:58,593 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 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) [2024-11-12 20:36:58,611 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 20:36:58,611 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 20:36:58,612 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-12 20:36:58,612 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2024-11-12 20:36:58,612 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 20:36:58,612 INFO L85 PathProgramCache]: Analyzing trace with hash -92986018, now seen corresponding path program 1 times [2024-11-12 20:36:58,613 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 20:36:58,613 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [840915043] [2024-11-12 20:36:58,613 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 20:36:58,613 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 20:36:58,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 20:36:58,715 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 20:36:58,716 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 20:36:58,716 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [840915043] [2024-11-12 20:36:58,716 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [840915043] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-12 20:36:58,717 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1079910707] [2024-11-12 20:36:58,717 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 20:36:58,717 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 20:36:58,717 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 20:36:58,719 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-12 20:36:58,720 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-12 20:36:58,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 20:36:58,800 INFO L256 TraceCheckSpWp]: Trace formula consists of 189 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-12 20:36:58,801 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 20:36:58,822 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 20:36:58,823 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-12 20:36:58,858 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 20:36:58,859 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1079910707] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-12 20:36:58,859 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-12 20:36:58,859 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 9 [2024-11-12 20:36:58,859 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [411946689] [2024-11-12 20:36:58,860 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-12 20:36:58,860 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-12 20:36:58,861 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 20:36:58,862 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-12 20:36:58,863 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-12 20:36:58,878 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 47 [2024-11-12 20:36:58,879 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 46 transitions, 106 flow. Second operand has 10 states, 10 states have (on average 18.6) internal successors, (186), 10 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) [2024-11-12 20:36:58,879 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 20:36:58,879 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 47 [2024-11-12 20:36:58,879 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 20:36:59,024 INFO L124 PetriNetUnfolderBase]: 128/388 cut-off events. [2024-11-12 20:36:59,024 INFO L125 PetriNetUnfolderBase]: For 9/9 co-relation queries the response was YES. [2024-11-12 20:36:59,026 INFO L83 FinitePrefix]: Finished finitePrefix Result has 666 conditions, 388 events. 128/388 cut-off events. For 9/9 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 2020 event pairs, 104 based on Foata normal form. 2/322 useless extension candidates. Maximal degree in co-relation 633. Up to 256 conditions per place. [2024-11-12 20:36:59,028 INFO L140 encePairwiseOnDemand]: 43/47 looper letters, 26 selfloop transitions, 7 changer transitions 0/49 dead transitions. [2024-11-12 20:36:59,028 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 49 transitions, 187 flow [2024-11-12 20:36:59,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-12 20:36:59,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-12 20:36:59,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 154 transitions. [2024-11-12 20:36:59,030 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.46808510638297873 [2024-11-12 20:36:59,030 INFO L175 Difference]: Start difference. First operand has 49 places, 46 transitions, 106 flow. Second operand 7 states and 154 transitions. [2024-11-12 20:36:59,030 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 49 transitions, 187 flow [2024-11-12 20:36:59,031 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 49 transitions, 173 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-12 20:36:59,032 INFO L231 Difference]: Finished difference. Result has 55 places, 49 transitions, 132 flow [2024-11-12 20:36:59,032 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=98, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=132, PETRI_PLACES=55, PETRI_TRANSITIONS=49} [2024-11-12 20:36:59,033 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, 8 predicate places. [2024-11-12 20:36:59,033 INFO L471 AbstractCegarLoop]: Abstraction has has 55 places, 49 transitions, 132 flow [2024-11-12 20:36:59,035 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 18.6) internal successors, (186), 10 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) [2024-11-12 20:36:59,036 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 20:36:59,036 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 20:36:59,054 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-12 20:36:59,240 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2024-11-12 20:36:59,241 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2024-11-12 20:36:59,242 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 20:36:59,242 INFO L85 PathProgramCache]: Analyzing trace with hash 1115452862, now seen corresponding path program 2 times [2024-11-12 20:36:59,242 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 20:36:59,242 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [711359482] [2024-11-12 20:36:59,243 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 20:36:59,243 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 20:36:59,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 20:36:59,392 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 20:36:59,393 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 20:36:59,393 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [711359482] [2024-11-12 20:36:59,393 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [711359482] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-12 20:36:59,394 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2004160006] [2024-11-12 20:36:59,394 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-12 20:36:59,394 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 20:36:59,394 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 20:36:59,396 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-12 20:36:59,398 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-12 20:36:59,477 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-12 20:36:59,477 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-12 20:36:59,478 INFO L256 TraceCheckSpWp]: Trace formula consists of 178 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-12 20:36:59,480 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 20:36:59,731 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2024-11-12 20:36:59,749 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-12 20:36:59,749 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-12 20:36:59,749 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2004160006] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 20:36:59,749 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-12 20:36:59,749 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8] total 12 [2024-11-12 20:36:59,749 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1720360530] [2024-11-12 20:36:59,750 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 20:36:59,750 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-12 20:36:59,750 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 20:36:59,752 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-12 20:36:59,753 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2024-11-12 20:36:59,761 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 47 [2024-11-12 20:36:59,762 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 49 transitions, 132 flow. Second operand has 6 states, 6 states have (on average 18.666666666666668) internal successors, (112), 6 states have internal predecessors, (112), 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) [2024-11-12 20:36:59,762 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 20:36:59,762 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 47 [2024-11-12 20:36:59,762 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 20:37:00,156 INFO L124 PetriNetUnfolderBase]: 357/881 cut-off events. [2024-11-12 20:37:00,156 INFO L125 PetriNetUnfolderBase]: For 15/15 co-relation queries the response was YES. [2024-11-12 20:37:00,158 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1611 conditions, 881 events. 357/881 cut-off events. For 15/15 co-relation queries the response was YES. Maximal size of possible extension queue 51. Compared 4963 event pairs, 91 based on Foata normal form. 24/755 useless extension candidates. Maximal degree in co-relation 1573. Up to 316 conditions per place. [2024-11-12 20:37:00,161 INFO L140 encePairwiseOnDemand]: 36/47 looper letters, 106 selfloop transitions, 16 changer transitions 0/136 dead transitions. [2024-11-12 20:37:00,162 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 136 transitions, 550 flow [2024-11-12 20:37:00,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-12 20:37:00,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-12 20:37:00,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 256 transitions. [2024-11-12 20:37:00,164 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6808510638297872 [2024-11-12 20:37:00,164 INFO L175 Difference]: Start difference. First operand has 55 places, 49 transitions, 132 flow. Second operand 8 states and 256 transitions. [2024-11-12 20:37:00,164 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 136 transitions, 550 flow [2024-11-12 20:37:00,166 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 136 transitions, 546 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-12 20:37:00,167 INFO L231 Difference]: Finished difference. Result has 66 places, 65 transitions, 248 flow [2024-11-12 20:37:00,168 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=128, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=248, PETRI_PLACES=66, PETRI_TRANSITIONS=65} [2024-11-12 20:37:00,168 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, 19 predicate places. [2024-11-12 20:37:00,168 INFO L471 AbstractCegarLoop]: Abstraction has has 66 places, 65 transitions, 248 flow [2024-11-12 20:37:00,169 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 18.666666666666668) internal successors, (112), 6 states have internal predecessors, (112), 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) [2024-11-12 20:37:00,169 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 20:37:00,169 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 20:37:00,187 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-12 20:37:00,373 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 20:37:00,374 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2024-11-12 20:37:00,374 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 20:37:00,375 INFO L85 PathProgramCache]: Analyzing trace with hash 1082013421, now seen corresponding path program 1 times [2024-11-12 20:37:00,375 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 20:37:00,375 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1539491079] [2024-11-12 20:37:00,375 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 20:37:00,375 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 20:37:00,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 20:37:00,424 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-12 20:37:00,425 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 20:37:00,425 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1539491079] [2024-11-12 20:37:00,425 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1539491079] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 20:37:00,425 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 20:37:00,426 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-12 20:37:00,426 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [604997921] [2024-11-12 20:37:00,426 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 20:37:00,426 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-12 20:37:00,426 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 20:37:00,427 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-12 20:37:00,427 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-12 20:37:00,427 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 47 [2024-11-12 20:37:00,427 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 65 transitions, 248 flow. Second operand has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 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) [2024-11-12 20:37:00,427 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 20:37:00,427 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 47 [2024-11-12 20:37:00,428 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 20:37:00,572 INFO L124 PetriNetUnfolderBase]: 270/759 cut-off events. [2024-11-12 20:37:00,572 INFO L125 PetriNetUnfolderBase]: For 331/359 co-relation queries the response was YES. [2024-11-12 20:37:00,574 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1693 conditions, 759 events. 270/759 cut-off events. For 331/359 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 4221 event pairs, 71 based on Foata normal form. 11/677 useless extension candidates. Maximal degree in co-relation 1649. Up to 303 conditions per place. [2024-11-12 20:37:00,577 INFO L140 encePairwiseOnDemand]: 44/47 looper letters, 70 selfloop transitions, 2 changer transitions 0/90 dead transitions. [2024-11-12 20:37:00,577 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 90 transitions, 492 flow [2024-11-12 20:37:00,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-12 20:37:00,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-12 20:37:00,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 102 transitions. [2024-11-12 20:37:00,578 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.723404255319149 [2024-11-12 20:37:00,578 INFO L175 Difference]: Start difference. First operand has 66 places, 65 transitions, 248 flow. Second operand 3 states and 102 transitions. [2024-11-12 20:37:00,578 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 90 transitions, 492 flow [2024-11-12 20:37:00,582 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 90 transitions, 492 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-12 20:37:00,583 INFO L231 Difference]: Finished difference. Result has 69 places, 66 transitions, 260 flow [2024-11-12 20:37:00,583 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=248, PETRI_DIFFERENCE_MINUEND_PLACES=66, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=65, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=63, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=260, PETRI_PLACES=69, PETRI_TRANSITIONS=66} [2024-11-12 20:37:00,584 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, 22 predicate places. [2024-11-12 20:37:00,584 INFO L471 AbstractCegarLoop]: Abstraction has has 69 places, 66 transitions, 260 flow [2024-11-12 20:37:00,584 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 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) [2024-11-12 20:37:00,584 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 20:37:00,585 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 20:37:00,585 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-12 20:37:00,585 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2024-11-12 20:37:00,585 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 20:37:00,585 INFO L85 PathProgramCache]: Analyzing trace with hash 1081981441, now seen corresponding path program 1 times [2024-11-12 20:37:00,586 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 20:37:00,586 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1537568556] [2024-11-12 20:37:00,586 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 20:37:00,586 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 20:37:00,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 20:37:00,696 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 20:37:00,696 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 20:37:00,696 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1537568556] [2024-11-12 20:37:00,696 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1537568556] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-12 20:37:00,696 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [215959092] [2024-11-12 20:37:00,697 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 20:37:00,697 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 20:37:00,697 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 20:37:00,699 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-12 20:37:00,700 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-12 20:37:00,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 20:37:00,783 INFO L256 TraceCheckSpWp]: Trace formula consists of 207 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-12 20:37:00,784 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 20:37:00,823 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 20:37:00,823 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-12 20:37:00,923 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 20:37:00,924 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [215959092] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-12 20:37:00,924 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-12 20:37:00,924 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 17 [2024-11-12 20:37:00,924 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1207531428] [2024-11-12 20:37:00,924 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-12 20:37:00,925 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-12 20:37:00,925 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 20:37:00,925 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-12 20:37:00,926 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2024-11-12 20:37:00,942 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 47 [2024-11-12 20:37:00,943 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 66 transitions, 260 flow. Second operand has 18 states, 18 states have (on average 18.333333333333332) internal successors, (330), 18 states have internal predecessors, (330), 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) [2024-11-12 20:37:00,943 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 20:37:00,943 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 47 [2024-11-12 20:37:00,944 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 20:37:01,166 INFO L124 PetriNetUnfolderBase]: 270/781 cut-off events. [2024-11-12 20:37:01,166 INFO L125 PetriNetUnfolderBase]: For 427/449 co-relation queries the response was YES. [2024-11-12 20:37:01,168 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1836 conditions, 781 events. 270/781 cut-off events. For 427/449 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 4326 event pairs, 142 based on Foata normal form. 9/713 useless extension candidates. Maximal degree in co-relation 1754. Up to 537 conditions per place. [2024-11-12 20:37:01,172 INFO L140 encePairwiseOnDemand]: 43/47 looper letters, 41 selfloop transitions, 15 changer transitions 0/74 dead transitions. [2024-11-12 20:37:01,172 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 83 places, 74 transitions, 420 flow [2024-11-12 20:37:01,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-12 20:37:01,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-11-12 20:37:01,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 300 transitions. [2024-11-12 20:37:01,175 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.425531914893617 [2024-11-12 20:37:01,175 INFO L175 Difference]: Start difference. First operand has 69 places, 66 transitions, 260 flow. Second operand 15 states and 300 transitions. [2024-11-12 20:37:01,176 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 83 places, 74 transitions, 420 flow [2024-11-12 20:37:01,180 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 82 places, 74 transitions, 418 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-12 20:37:01,182 INFO L231 Difference]: Finished difference. Result has 86 places, 74 transitions, 355 flow [2024-11-12 20:37:01,182 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=258, PETRI_DIFFERENCE_MINUEND_PLACES=68, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=66, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=58, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=355, PETRI_PLACES=86, PETRI_TRANSITIONS=74} [2024-11-12 20:37:01,183 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, 39 predicate places. [2024-11-12 20:37:01,183 INFO L471 AbstractCegarLoop]: Abstraction has has 86 places, 74 transitions, 355 flow [2024-11-12 20:37:01,184 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 18.333333333333332) internal successors, (330), 18 states have internal predecessors, (330), 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) [2024-11-12 20:37:01,184 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 20:37:01,184 INFO L206 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 20:37:01,205 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-12 20:37:01,391 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 20:37:01,392 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2024-11-12 20:37:01,392 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 20:37:01,392 INFO L85 PathProgramCache]: Analyzing trace with hash -925826367, now seen corresponding path program 2 times [2024-11-12 20:37:01,392 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 20:37:01,393 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2049073125] [2024-11-12 20:37:01,393 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 20:37:01,393 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 20:37:01,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 20:37:01,691 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 20:37:01,692 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 20:37:01,692 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2049073125] [2024-11-12 20:37:01,692 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2049073125] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-12 20:37:01,692 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1359038444] [2024-11-12 20:37:01,693 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-12 20:37:01,693 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 20:37:01,693 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 20:37:01,695 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-12 20:37:01,696 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-12 20:37:01,777 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-12 20:37:01,777 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-12 20:37:01,778 INFO L256 TraceCheckSpWp]: Trace formula consists of 174 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-12 20:37:01,780 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 20:37:02,058 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2024-11-12 20:37:02,075 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-12 20:37:02,075 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-12 20:37:02,076 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1359038444] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 20:37:02,076 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-12 20:37:02,076 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [16] total 20 [2024-11-12 20:37:02,076 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1365920975] [2024-11-12 20:37:02,076 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 20:37:02,076 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-12 20:37:02,076 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 20:37:02,077 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-12 20:37:02,077 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=89, Invalid=331, Unknown=0, NotChecked=0, Total=420 [2024-11-12 20:37:02,087 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 47 [2024-11-12 20:37:02,088 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 86 places, 74 transitions, 355 flow. Second operand has 6 states, 6 states have (on average 18.666666666666668) internal successors, (112), 6 states have internal predecessors, (112), 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) [2024-11-12 20:37:02,088 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 20:37:02,088 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 47 [2024-11-12 20:37:02,088 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 20:37:02,479 INFO L124 PetriNetUnfolderBase]: 461/1208 cut-off events. [2024-11-12 20:37:02,479 INFO L125 PetriNetUnfolderBase]: For 629/674 co-relation queries the response was YES. [2024-11-12 20:37:02,482 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2899 conditions, 1208 events. 461/1208 cut-off events. For 629/674 co-relation queries the response was YES. Maximal size of possible extension queue 55. Compared 7252 event pairs, 77 based on Foata normal form. 35/1138 useless extension candidates. Maximal degree in co-relation 2793. Up to 582 conditions per place. [2024-11-12 20:37:02,487 INFO L140 encePairwiseOnDemand]: 37/47 looper letters, 111 selfloop transitions, 32 changer transitions 0/159 dead transitions. [2024-11-12 20:37:02,488 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 93 places, 159 transitions, 986 flow [2024-11-12 20:37:02,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-12 20:37:02,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-12 20:37:02,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 229 transitions. [2024-11-12 20:37:02,489 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6090425531914894 [2024-11-12 20:37:02,489 INFO L175 Difference]: Start difference. First operand has 86 places, 74 transitions, 355 flow. Second operand 8 states and 229 transitions. [2024-11-12 20:37:02,489 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 93 places, 159 transitions, 986 flow [2024-11-12 20:37:02,493 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 89 places, 159 transitions, 976 flow, removed 1 selfloop flow, removed 4 redundant places. [2024-11-12 20:37:02,496 INFO L231 Difference]: Finished difference. Result has 95 places, 105 transitions, 651 flow [2024-11-12 20:37:02,497 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=345, PETRI_DIFFERENCE_MINUEND_PLACES=82, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=74, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=57, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=651, PETRI_PLACES=95, PETRI_TRANSITIONS=105} [2024-11-12 20:37:02,498 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, 48 predicate places. [2024-11-12 20:37:02,498 INFO L471 AbstractCegarLoop]: Abstraction has has 95 places, 105 transitions, 651 flow [2024-11-12 20:37:02,499 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 18.666666666666668) internal successors, (112), 6 states have internal predecessors, (112), 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) [2024-11-12 20:37:02,500 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 20:37:02,500 INFO L206 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 20:37:02,519 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-12 20:37:02,700 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 20:37:02,700 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2024-11-12 20:37:02,701 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 20:37:02,701 INFO L85 PathProgramCache]: Analyzing trace with hash 1364154082, now seen corresponding path program 1 times [2024-11-12 20:37:02,701 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 20:37:02,701 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [21499350] [2024-11-12 20:37:02,701 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 20:37:02,701 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 20:37:02,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 20:37:02,975 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 20:37:02,976 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 20:37:02,976 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [21499350] [2024-11-12 20:37:02,976 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [21499350] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-12 20:37:02,977 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [839773871] [2024-11-12 20:37:02,977 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 20:37:02,977 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 20:37:02,977 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 20:37:02,979 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-12 20:37:02,980 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-12 20:37:03,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 20:37:03,067 INFO L256 TraceCheckSpWp]: Trace formula consists of 252 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-12 20:37:03,068 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 20:37:03,122 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 20:37:03,122 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-12 20:37:03,317 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 20:37:03,318 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [839773871] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-12 20:37:03,318 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-12 20:37:03,318 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16, 16] total 22 [2024-11-12 20:37:03,318 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1442088432] [2024-11-12 20:37:03,318 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-12 20:37:03,319 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-12 20:37:03,319 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 20:37:03,319 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-12 20:37:03,319 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2024-11-12 20:37:03,341 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 47 [2024-11-12 20:37:03,342 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 95 places, 105 transitions, 651 flow. Second operand has 23 states, 23 states have (on average 18.304347826086957) internal successors, (421), 23 states have internal predecessors, (421), 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) [2024-11-12 20:37:03,342 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 20:37:03,342 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 47 [2024-11-12 20:37:03,342 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 20:37:03,666 INFO L124 PetriNetUnfolderBase]: 379/1081 cut-off events. [2024-11-12 20:37:03,666 INFO L125 PetriNetUnfolderBase]: For 1521/1599 co-relation queries the response was YES. [2024-11-12 20:37:03,670 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3022 conditions, 1081 events. 379/1081 cut-off events. For 1521/1599 co-relation queries the response was YES. Maximal size of possible extension queue 55. Compared 6371 event pairs, 168 based on Foata normal form. 30/1020 useless extension candidates. Maximal degree in co-relation 2877. Up to 755 conditions per place. [2024-11-12 20:37:03,675 INFO L140 encePairwiseOnDemand]: 43/47 looper letters, 70 selfloop transitions, 21 changer transitions 0/111 dead transitions. [2024-11-12 20:37:03,675 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 115 places, 111 transitions, 887 flow [2024-11-12 20:37:03,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-12 20:37:03,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2024-11-12 20:37:03,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 407 transitions. [2024-11-12 20:37:03,677 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.41236068895643363 [2024-11-12 20:37:03,677 INFO L175 Difference]: Start difference. First operand has 95 places, 105 transitions, 651 flow. Second operand 21 states and 407 transitions. [2024-11-12 20:37:03,677 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 115 places, 111 transitions, 887 flow [2024-11-12 20:37:03,684 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 115 places, 111 transitions, 887 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-12 20:37:03,686 INFO L231 Difference]: Finished difference. Result has 118 places, 111 transitions, 762 flow [2024-11-12 20:37:03,686 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=651, PETRI_DIFFERENCE_MINUEND_PLACES=95, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=105, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=89, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=762, PETRI_PLACES=118, PETRI_TRANSITIONS=111} [2024-11-12 20:37:03,687 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, 71 predicate places. [2024-11-12 20:37:03,687 INFO L471 AbstractCegarLoop]: Abstraction has has 118 places, 111 transitions, 762 flow [2024-11-12 20:37:03,687 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 18.304347826086957) internal successors, (421), 23 states have internal predecessors, (421), 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) [2024-11-12 20:37:03,688 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 20:37:03,688 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 20:37:03,706 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-12 20:37:03,892 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 20:37:03,893 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2024-11-12 20:37:03,893 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 20:37:03,893 INFO L85 PathProgramCache]: Analyzing trace with hash -732466678, now seen corresponding path program 1 times [2024-11-12 20:37:03,894 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 20:37:03,894 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1479617489] [2024-11-12 20:37:03,894 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 20:37:03,894 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 20:37:03,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 20:37:04,175 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-12 20:37:04,175 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 20:37:04,175 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1479617489] [2024-11-12 20:37:04,175 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1479617489] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 20:37:04,175 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 20:37:04,175 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-12 20:37:04,176 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [228256522] [2024-11-12 20:37:04,176 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 20:37:04,176 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-12 20:37:04,176 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 20:37:04,176 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-12 20:37:04,176 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-12 20:37:04,190 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 47 [2024-11-12 20:37:04,190 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 118 places, 111 transitions, 762 flow. Second operand has 6 states, 6 states have (on average 18.666666666666668) internal successors, (112), 6 states have internal predecessors, (112), 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) [2024-11-12 20:37:04,190 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 20:37:04,190 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 47 [2024-11-12 20:37:04,190 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 20:37:04,480 INFO L124 PetriNetUnfolderBase]: 455/1232 cut-off events. [2024-11-12 20:37:04,480 INFO L125 PetriNetUnfolderBase]: For 1814/1850 co-relation queries the response was YES. [2024-11-12 20:37:04,484 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3506 conditions, 1232 events. 455/1232 cut-off events. For 1814/1850 co-relation queries the response was YES. Maximal size of possible extension queue 58. Compared 7426 event pairs, 170 based on Foata normal form. 45/1174 useless extension candidates. Maximal degree in co-relation 3332. Up to 845 conditions per place. [2024-11-12 20:37:04,489 INFO L140 encePairwiseOnDemand]: 40/47 looper letters, 106 selfloop transitions, 18 changer transitions 0/140 dead transitions. [2024-11-12 20:37:04,489 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 124 places, 140 transitions, 1136 flow [2024-11-12 20:37:04,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-12 20:37:04,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-12 20:37:04,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 190 transitions. [2024-11-12 20:37:04,490 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5775075987841946 [2024-11-12 20:37:04,490 INFO L175 Difference]: Start difference. First operand has 118 places, 111 transitions, 762 flow. Second operand 7 states and 190 transitions. [2024-11-12 20:37:04,490 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 124 places, 140 transitions, 1136 flow [2024-11-12 20:37:04,499 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 110 places, 140 transitions, 1075 flow, removed 1 selfloop flow, removed 14 redundant places. [2024-11-12 20:37:04,501 INFO L231 Difference]: Finished difference. Result has 110 places, 110 transitions, 731 flow [2024-11-12 20:37:04,501 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=695, PETRI_DIFFERENCE_MINUEND_PLACES=104, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=110, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=92, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=731, PETRI_PLACES=110, PETRI_TRANSITIONS=110} [2024-11-12 20:37:04,502 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, 63 predicate places. [2024-11-12 20:37:04,502 INFO L471 AbstractCegarLoop]: Abstraction has has 110 places, 110 transitions, 731 flow [2024-11-12 20:37:04,502 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 18.666666666666668) internal successors, (112), 6 states have internal predecessors, (112), 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) [2024-11-12 20:37:04,503 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 20:37:04,503 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 20:37:04,503 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-12 20:37:04,503 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2024-11-12 20:37:04,504 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 20:37:04,504 INFO L85 PathProgramCache]: Analyzing trace with hash -1770080767, now seen corresponding path program 2 times [2024-11-12 20:37:04,504 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 20:37:04,504 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1749024081] [2024-11-12 20:37:04,504 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 20:37:04,504 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 20:37:04,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 20:37:04,751 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-12 20:37:04,751 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 20:37:04,751 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1749024081] [2024-11-12 20:37:04,751 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1749024081] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 20:37:04,751 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 20:37:04,752 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-12 20:37:04,752 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [116223065] [2024-11-12 20:37:04,752 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 20:37:04,752 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-12 20:37:04,752 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 20:37:04,753 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-12 20:37:04,753 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-12 20:37:04,762 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 47 [2024-11-12 20:37:04,762 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 110 places, 110 transitions, 731 flow. Second operand has 6 states, 6 states have (on average 18.666666666666668) internal successors, (112), 6 states have internal predecessors, (112), 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) [2024-11-12 20:37:04,762 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 20:37:04,763 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 47 [2024-11-12 20:37:04,763 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 20:37:05,030 INFO L124 PetriNetUnfolderBase]: 440/1192 cut-off events. [2024-11-12 20:37:05,030 INFO L125 PetriNetUnfolderBase]: For 1600/1606 co-relation queries the response was YES. [2024-11-12 20:37:05,034 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3432 conditions, 1192 events. 440/1192 cut-off events. For 1600/1606 co-relation queries the response was YES. Maximal size of possible extension queue 60. Compared 7321 event pairs, 179 based on Foata normal form. 23/1115 useless extension candidates. Maximal degree in co-relation 3279. Up to 814 conditions per place. [2024-11-12 20:37:05,080 INFO L140 encePairwiseOnDemand]: 40/47 looper letters, 101 selfloop transitions, 18 changer transitions 0/134 dead transitions. [2024-11-12 20:37:05,080 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 116 places, 134 transitions, 1092 flow [2024-11-12 20:37:05,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-12 20:37:05,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-12 20:37:05,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 185 transitions. [2024-11-12 20:37:05,081 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5623100303951368 [2024-11-12 20:37:05,082 INFO L175 Difference]: Start difference. First operand has 110 places, 110 transitions, 731 flow. Second operand 7 states and 185 transitions. [2024-11-12 20:37:05,082 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 116 places, 134 transitions, 1092 flow [2024-11-12 20:37:05,087 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 113 places, 134 transitions, 1050 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-12 20:37:05,090 INFO L231 Difference]: Finished difference. Result has 113 places, 109 transitions, 722 flow [2024-11-12 20:37:05,090 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=686, PETRI_DIFFERENCE_MINUEND_PLACES=107, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=109, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=91, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=722, PETRI_PLACES=113, PETRI_TRANSITIONS=109} [2024-11-12 20:37:05,090 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, 66 predicate places. [2024-11-12 20:37:05,091 INFO L471 AbstractCegarLoop]: Abstraction has has 113 places, 109 transitions, 722 flow [2024-11-12 20:37:05,091 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 18.666666666666668) internal successors, (112), 6 states have internal predecessors, (112), 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) [2024-11-12 20:37:05,091 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 20:37:05,091 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 20:37:05,091 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-12 20:37:05,091 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2024-11-12 20:37:05,092 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 20:37:05,092 INFO L85 PathProgramCache]: Analyzing trace with hash 1814449730, now seen corresponding path program 1 times [2024-11-12 20:37:05,092 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 20:37:05,092 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2081537714] [2024-11-12 20:37:05,093 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 20:37:05,093 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 20:37:05,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 20:37:05,182 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-12 20:37:05,182 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 20:37:05,182 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2081537714] [2024-11-12 20:37:05,182 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2081537714] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 20:37:05,182 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 20:37:05,182 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-12 20:37:05,183 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [594323646] [2024-11-12 20:37:05,183 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 20:37:05,183 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-12 20:37:05,183 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 20:37:05,184 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-12 20:37:05,184 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-12 20:37:05,188 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 47 [2024-11-12 20:37:05,189 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 113 places, 109 transitions, 722 flow. Second operand has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 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) [2024-11-12 20:37:05,189 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 20:37:05,189 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 47 [2024-11-12 20:37:05,189 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 20:37:05,444 INFO L124 PetriNetUnfolderBase]: 512/1340 cut-off events. [2024-11-12 20:37:05,444 INFO L125 PetriNetUnfolderBase]: For 1414/1423 co-relation queries the response was YES. [2024-11-12 20:37:05,449 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3711 conditions, 1340 events. 512/1340 cut-off events. For 1414/1423 co-relation queries the response was YES. Maximal size of possible extension queue 57. Compared 7846 event pairs, 229 based on Foata normal form. 46/1317 useless extension candidates. Maximal degree in co-relation 3558. Up to 595 conditions per place. [2024-11-12 20:37:05,456 INFO L140 encePairwiseOnDemand]: 41/47 looper letters, 132 selfloop transitions, 6 changer transitions 0/154 dead transitions. [2024-11-12 20:37:05,456 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 116 places, 154 transitions, 1187 flow [2024-11-12 20:37:05,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-12 20:37:05,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-12 20:37:05,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 136 transitions. [2024-11-12 20:37:05,457 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.723404255319149 [2024-11-12 20:37:05,457 INFO L175 Difference]: Start difference. First operand has 113 places, 109 transitions, 722 flow. Second operand 4 states and 136 transitions. [2024-11-12 20:37:05,457 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 116 places, 154 transitions, 1187 flow [2024-11-12 20:37:05,463 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 114 places, 154 transitions, 1166 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-12 20:37:05,467 INFO L231 Difference]: Finished difference. Result has 116 places, 111 transitions, 740 flow [2024-11-12 20:37:05,468 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=702, PETRI_DIFFERENCE_MINUEND_PLACES=111, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=109, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=103, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=740, PETRI_PLACES=116, PETRI_TRANSITIONS=111} [2024-11-12 20:37:05,468 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, 69 predicate places. [2024-11-12 20:37:05,470 INFO L471 AbstractCegarLoop]: Abstraction has has 116 places, 111 transitions, 740 flow [2024-11-12 20:37:05,470 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 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) [2024-11-12 20:37:05,470 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 20:37:05,470 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 20:37:05,470 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-12 20:37:05,470 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2024-11-12 20:37:05,471 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 20:37:05,471 INFO L85 PathProgramCache]: Analyzing trace with hash 1132727483, now seen corresponding path program 1 times [2024-11-12 20:37:05,471 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 20:37:05,471 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1650536695] [2024-11-12 20:37:05,473 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 20:37:05,473 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 20:37:05,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 20:37:05,561 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-12 20:37:05,562 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 20:37:05,562 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1650536695] [2024-11-12 20:37:05,562 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1650536695] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 20:37:05,562 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 20:37:05,562 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-12 20:37:05,563 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1659102856] [2024-11-12 20:37:05,563 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 20:37:05,563 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-12 20:37:05,563 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 20:37:05,564 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-12 20:37:05,565 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-12 20:37:05,571 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 47 [2024-11-12 20:37:05,571 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 116 places, 111 transitions, 740 flow. Second operand has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 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) [2024-11-12 20:37:05,571 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 20:37:05,571 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 47 [2024-11-12 20:37:05,571 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 20:37:05,809 INFO L124 PetriNetUnfolderBase]: 502/1302 cut-off events. [2024-11-12 20:37:05,809 INFO L125 PetriNetUnfolderBase]: For 1823/1840 co-relation queries the response was YES. [2024-11-12 20:37:05,813 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3860 conditions, 1302 events. 502/1302 cut-off events. For 1823/1840 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 7674 event pairs, 219 based on Foata normal form. 36/1326 useless extension candidates. Maximal degree in co-relation 3705. Up to 701 conditions per place. [2024-11-12 20:37:05,820 INFO L140 encePairwiseOnDemand]: 42/47 looper letters, 125 selfloop transitions, 6 changer transitions 0/147 dead transitions. [2024-11-12 20:37:05,821 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 119 places, 147 transitions, 1202 flow [2024-11-12 20:37:05,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-12 20:37:05,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-12 20:37:05,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 125 transitions. [2024-11-12 20:37:05,822 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6648936170212766 [2024-11-12 20:37:05,822 INFO L175 Difference]: Start difference. First operand has 116 places, 111 transitions, 740 flow. Second operand 4 states and 125 transitions. [2024-11-12 20:37:05,822 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 119 places, 147 transitions, 1202 flow [2024-11-12 20:37:05,829 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 118 places, 147 transitions, 1192 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-12 20:37:05,831 INFO L231 Difference]: Finished difference. Result has 120 places, 112 transitions, 766 flow [2024-11-12 20:37:05,832 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=736, PETRI_DIFFERENCE_MINUEND_PLACES=115, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=111, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=105, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=766, PETRI_PLACES=120, PETRI_TRANSITIONS=112} [2024-11-12 20:37:05,833 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, 73 predicate places. [2024-11-12 20:37:05,834 INFO L471 AbstractCegarLoop]: Abstraction has has 120 places, 112 transitions, 766 flow [2024-11-12 20:37:05,834 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 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) [2024-11-12 20:37:05,835 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 20:37:05,835 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 20:37:05,835 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-12 20:37:05,835 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2024-11-12 20:37:05,836 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 20:37:05,836 INFO L85 PathProgramCache]: Analyzing trace with hash 543010746, now seen corresponding path program 1 times [2024-11-12 20:37:05,836 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 20:37:05,837 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1248781033] [2024-11-12 20:37:05,837 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 20:37:05,837 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 20:37:05,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 20:37:06,363 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-12 20:37:06,363 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 20:37:06,363 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1248781033] [2024-11-12 20:37:06,364 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1248781033] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 20:37:06,364 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 20:37:06,364 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-12 20:37:06,364 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [756759648] [2024-11-12 20:37:06,364 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 20:37:06,364 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-12 20:37:06,365 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 20:37:06,365 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-12 20:37:06,365 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2024-11-12 20:37:06,365 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 47 [2024-11-12 20:37:06,366 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 120 places, 112 transitions, 766 flow. Second operand has 8 states, 8 states have (on average 20.75) internal successors, (166), 8 states have internal predecessors, (166), 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) [2024-11-12 20:37:06,366 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 20:37:06,366 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 47 [2024-11-12 20:37:06,366 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 20:37:06,884 INFO L124 PetriNetUnfolderBase]: 540/1489 cut-off events. [2024-11-12 20:37:06,884 INFO L125 PetriNetUnfolderBase]: For 2234/2247 co-relation queries the response was YES. [2024-11-12 20:37:06,890 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4444 conditions, 1489 events. 540/1489 cut-off events. For 2234/2247 co-relation queries the response was YES. Maximal size of possible extension queue 65. Compared 9524 event pairs, 138 based on Foata normal form. 7/1476 useless extension candidates. Maximal degree in co-relation 4287. Up to 504 conditions per place. [2024-11-12 20:37:06,897 INFO L140 encePairwiseOnDemand]: 36/47 looper letters, 171 selfloop transitions, 18 changer transitions 0/207 dead transitions. [2024-11-12 20:37:06,897 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 127 places, 207 transitions, 1690 flow [2024-11-12 20:37:06,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-12 20:37:06,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-12 20:37:06,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 240 transitions. [2024-11-12 20:37:06,899 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6382978723404256 [2024-11-12 20:37:06,899 INFO L175 Difference]: Start difference. First operand has 120 places, 112 transitions, 766 flow. Second operand 8 states and 240 transitions. [2024-11-12 20:37:06,899 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 127 places, 207 transitions, 1690 flow [2024-11-12 20:37:06,907 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 125 places, 207 transitions, 1658 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-12 20:37:06,909 INFO L231 Difference]: Finished difference. Result has 130 places, 123 transitions, 890 flow [2024-11-12 20:37:06,909 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=758, PETRI_DIFFERENCE_MINUEND_PLACES=118, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=112, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=96, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=890, PETRI_PLACES=130, PETRI_TRANSITIONS=123} [2024-11-12 20:37:06,910 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, 83 predicate places. [2024-11-12 20:37:06,910 INFO L471 AbstractCegarLoop]: Abstraction has has 130 places, 123 transitions, 890 flow [2024-11-12 20:37:06,910 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 20.75) internal successors, (166), 8 states have internal predecessors, (166), 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) [2024-11-12 20:37:06,910 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 20:37:06,910 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 20:37:06,910 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-12 20:37:06,911 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2024-11-12 20:37:06,911 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 20:37:06,911 INFO L85 PathProgramCache]: Analyzing trace with hash 1753571206, now seen corresponding path program 1 times [2024-11-12 20:37:06,911 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 20:37:06,911 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1437182843] [2024-11-12 20:37:06,911 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 20:37:06,912 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 20:37:06,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 20:37:07,312 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-12 20:37:07,313 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 20:37:07,313 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1437182843] [2024-11-12 20:37:07,313 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1437182843] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 20:37:07,313 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 20:37:07,313 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-12 20:37:07,314 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1915850170] [2024-11-12 20:37:07,314 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 20:37:07,314 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-12 20:37:07,314 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 20:37:07,314 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-12 20:37:07,315 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2024-11-12 20:37:07,315 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 47 [2024-11-12 20:37:07,315 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 130 places, 123 transitions, 890 flow. Second operand has 8 states, 8 states have (on average 20.75) internal successors, (166), 8 states have internal predecessors, (166), 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) [2024-11-12 20:37:07,315 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 20:37:07,315 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 47 [2024-11-12 20:37:07,315 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 20:37:07,745 INFO L124 PetriNetUnfolderBase]: 586/1597 cut-off events. [2024-11-12 20:37:07,745 INFO L125 PetriNetUnfolderBase]: For 3215/3239 co-relation queries the response was YES. [2024-11-12 20:37:07,751 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5374 conditions, 1597 events. 586/1597 cut-off events. For 3215/3239 co-relation queries the response was YES. Maximal size of possible extension queue 65. Compared 10269 event pairs, 207 based on Foata normal form. 9/1589 useless extension candidates. Maximal degree in co-relation 5211. Up to 757 conditions per place. [2024-11-12 20:37:07,764 INFO L140 encePairwiseOnDemand]: 36/47 looper letters, 172 selfloop transitions, 24 changer transitions 0/214 dead transitions. [2024-11-12 20:37:07,764 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 137 places, 214 transitions, 1945 flow [2024-11-12 20:37:07,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-12 20:37:07,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-12 20:37:07,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 225 transitions. [2024-11-12 20:37:07,765 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.598404255319149 [2024-11-12 20:37:07,765 INFO L175 Difference]: Start difference. First operand has 130 places, 123 transitions, 890 flow. Second operand 8 states and 225 transitions. [2024-11-12 20:37:07,766 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 137 places, 214 transitions, 1945 flow [2024-11-12 20:37:07,774 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 135 places, 214 transitions, 1928 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-12 20:37:07,777 INFO L231 Difference]: Finished difference. Result has 140 places, 136 transitions, 1079 flow [2024-11-12 20:37:07,777 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=885, PETRI_DIFFERENCE_MINUEND_PLACES=128, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=123, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=101, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=1079, PETRI_PLACES=140, PETRI_TRANSITIONS=136} [2024-11-12 20:37:07,778 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, 93 predicate places. [2024-11-12 20:37:07,778 INFO L471 AbstractCegarLoop]: Abstraction has has 140 places, 136 transitions, 1079 flow [2024-11-12 20:37:07,778 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 20.75) internal successors, (166), 8 states have internal predecessors, (166), 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) [2024-11-12 20:37:07,778 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 20:37:07,778 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 20:37:07,778 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-12 20:37:07,779 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2024-11-12 20:37:07,779 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 20:37:07,779 INFO L85 PathProgramCache]: Analyzing trace with hash -1985880402, now seen corresponding path program 2 times [2024-11-12 20:37:07,779 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 20:37:07,779 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2051236928] [2024-11-12 20:37:07,780 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 20:37:07,780 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 20:37:07,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 20:37:08,158 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-12 20:37:08,158 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 20:37:08,159 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2051236928] [2024-11-12 20:37:08,159 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2051236928] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 20:37:08,159 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 20:37:08,159 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-12 20:37:08,159 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2112481937] [2024-11-12 20:37:08,159 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 20:37:08,159 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-12 20:37:08,160 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 20:37:08,160 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-12 20:37:08,160 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2024-11-12 20:37:08,160 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 47 [2024-11-12 20:37:08,161 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 140 places, 136 transitions, 1079 flow. Second operand has 8 states, 8 states have (on average 20.75) internal successors, (166), 8 states have internal predecessors, (166), 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) [2024-11-12 20:37:08,161 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 20:37:08,161 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 47 [2024-11-12 20:37:08,161 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 20:37:08,684 INFO L124 PetriNetUnfolderBase]: 635/1721 cut-off events. [2024-11-12 20:37:08,685 INFO L125 PetriNetUnfolderBase]: For 5137/5153 co-relation queries the response was YES. [2024-11-12 20:37:08,692 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6413 conditions, 1721 events. 635/1721 cut-off events. For 5137/5153 co-relation queries the response was YES. Maximal size of possible extension queue 70. Compared 11178 event pairs, 234 based on Foata normal form. 9/1704 useless extension candidates. Maximal degree in co-relation 6244. Up to 578 conditions per place. [2024-11-12 20:37:08,699 INFO L140 encePairwiseOnDemand]: 35/47 looper letters, 197 selfloop transitions, 30 changer transitions 0/245 dead transitions. [2024-11-12 20:37:08,700 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 147 places, 245 transitions, 2411 flow [2024-11-12 20:37:08,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-12 20:37:08,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-12 20:37:08,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 241 transitions. [2024-11-12 20:37:08,701 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6409574468085106 [2024-11-12 20:37:08,701 INFO L175 Difference]: Start difference. First operand has 140 places, 136 transitions, 1079 flow. Second operand 8 states and 241 transitions. [2024-11-12 20:37:08,701 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 147 places, 245 transitions, 2411 flow [2024-11-12 20:37:08,714 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 145 places, 245 transitions, 2370 flow, removed 11 selfloop flow, removed 2 redundant places. [2024-11-12 20:37:08,717 INFO L231 Difference]: Finished difference. Result has 149 places, 151 transitions, 1348 flow [2024-11-12 20:37:08,718 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=1062, PETRI_DIFFERENCE_MINUEND_PLACES=138, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=136, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=111, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=1348, PETRI_PLACES=149, PETRI_TRANSITIONS=151} [2024-11-12 20:37:08,718 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, 102 predicate places. [2024-11-12 20:37:08,719 INFO L471 AbstractCegarLoop]: Abstraction has has 149 places, 151 transitions, 1348 flow [2024-11-12 20:37:08,719 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 20.75) internal successors, (166), 8 states have internal predecessors, (166), 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) [2024-11-12 20:37:08,719 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 20:37:08,719 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 20:37:08,719 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-12 20:37:08,719 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2024-11-12 20:37:08,720 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 20:37:08,720 INFO L85 PathProgramCache]: Analyzing trace with hash -1450198208, now seen corresponding path program 2 times [2024-11-12 20:37:08,720 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 20:37:08,720 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [19411988] [2024-11-12 20:37:08,720 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 20:37:08,721 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 20:37:08,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 20:37:09,133 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-12 20:37:09,134 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 20:37:09,134 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [19411988] [2024-11-12 20:37:09,134 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [19411988] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 20:37:09,134 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 20:37:09,135 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-12 20:37:09,135 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [47738189] [2024-11-12 20:37:09,135 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 20:37:09,135 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-12 20:37:09,135 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 20:37:09,136 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-12 20:37:09,136 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2024-11-12 20:37:09,137 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 47 [2024-11-12 20:37:09,138 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 149 places, 151 transitions, 1348 flow. Second operand has 8 states, 8 states have (on average 20.75) internal successors, (166), 8 states have internal predecessors, (166), 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) [2024-11-12 20:37:09,138 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 20:37:09,138 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 47 [2024-11-12 20:37:09,139 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 20:37:09,670 INFO L124 PetriNetUnfolderBase]: 684/1840 cut-off events. [2024-11-12 20:37:09,671 INFO L125 PetriNetUnfolderBase]: For 7515/7537 co-relation queries the response was YES. [2024-11-12 20:37:09,677 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7393 conditions, 1840 events. 684/1840 cut-off events. For 7515/7537 co-relation queries the response was YES. Maximal size of possible extension queue 68. Compared 12079 event pairs, 254 based on Foata normal form. 12/1832 useless extension candidates. Maximal degree in co-relation 7219. Up to 766 conditions per place. [2024-11-12 20:37:09,684 INFO L140 encePairwiseOnDemand]: 35/47 looper letters, 198 selfloop transitions, 38 changer transitions 0/254 dead transitions. [2024-11-12 20:37:09,685 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 156 places, 254 transitions, 2792 flow [2024-11-12 20:37:09,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-12 20:37:09,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-12 20:37:09,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 231 transitions. [2024-11-12 20:37:09,686 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6143617021276596 [2024-11-12 20:37:09,686 INFO L175 Difference]: Start difference. First operand has 149 places, 151 transitions, 1348 flow. Second operand 8 states and 231 transitions. [2024-11-12 20:37:09,686 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 156 places, 254 transitions, 2792 flow [2024-11-12 20:37:09,703 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 153 places, 254 transitions, 2718 flow, removed 5 selfloop flow, removed 3 redundant places. [2024-11-12 20:37:09,708 INFO L231 Difference]: Finished difference. Result has 157 places, 166 transitions, 1626 flow [2024-11-12 20:37:09,708 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=1318, PETRI_DIFFERENCE_MINUEND_PLACES=146, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=151, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=24, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=118, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=1626, PETRI_PLACES=157, PETRI_TRANSITIONS=166} [2024-11-12 20:37:09,709 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, 110 predicate places. [2024-11-12 20:37:09,709 INFO L471 AbstractCegarLoop]: Abstraction has has 157 places, 166 transitions, 1626 flow [2024-11-12 20:37:09,710 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 20.75) internal successors, (166), 8 states have internal predecessors, (166), 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) [2024-11-12 20:37:09,710 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 20:37:09,710 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 20:37:09,711 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-12 20:37:09,711 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2024-11-12 20:37:09,711 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 20:37:09,711 INFO L85 PathProgramCache]: Analyzing trace with hash 149787254, now seen corresponding path program 3 times [2024-11-12 20:37:09,712 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 20:37:09,712 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1229544435] [2024-11-12 20:37:09,712 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 20:37:09,712 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 20:37:09,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 20:37:10,130 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-12 20:37:10,130 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 20:37:10,130 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1229544435] [2024-11-12 20:37:10,130 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1229544435] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 20:37:10,130 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 20:37:10,131 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-12 20:37:10,131 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1367074029] [2024-11-12 20:37:10,131 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 20:37:10,131 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-12 20:37:10,131 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 20:37:10,132 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-12 20:37:10,132 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-11-12 20:37:10,132 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 47 [2024-11-12 20:37:10,133 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 157 places, 166 transitions, 1626 flow. Second operand has 8 states, 8 states have (on average 20.75) internal successors, (166), 8 states have internal predecessors, (166), 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) [2024-11-12 20:37:10,133 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 20:37:10,133 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 47 [2024-11-12 20:37:10,133 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 20:37:10,735 INFO L124 PetriNetUnfolderBase]: 751/2032 cut-off events. [2024-11-12 20:37:10,736 INFO L125 PetriNetUnfolderBase]: For 10858/10882 co-relation queries the response was YES. [2024-11-12 20:37:10,748 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8744 conditions, 2032 events. 751/2032 cut-off events. For 10858/10882 co-relation queries the response was YES. Maximal size of possible extension queue 80. Compared 13719 event pairs, 264 based on Foata normal form. 11/2016 useless extension candidates. Maximal degree in co-relation 8566. Up to 704 conditions per place. [2024-11-12 20:37:10,758 INFO L140 encePairwiseOnDemand]: 35/47 looper letters, 218 selfloop transitions, 42 changer transitions 0/278 dead transitions. [2024-11-12 20:37:10,758 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 164 places, 278 transitions, 3259 flow [2024-11-12 20:37:10,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-12 20:37:10,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-12 20:37:10,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 241 transitions. [2024-11-12 20:37:10,759 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6409574468085106 [2024-11-12 20:37:10,759 INFO L175 Difference]: Start difference. First operand has 157 places, 166 transitions, 1626 flow. Second operand 8 states and 241 transitions. [2024-11-12 20:37:10,760 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 164 places, 278 transitions, 3259 flow [2024-11-12 20:37:10,786 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 161 places, 278 transitions, 3173 flow, removed 7 selfloop flow, removed 3 redundant places. [2024-11-12 20:37:10,790 INFO L231 Difference]: Finished difference. Result has 166 places, 189 transitions, 2092 flow [2024-11-12 20:37:10,790 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=1576, PETRI_DIFFERENCE_MINUEND_PLACES=154, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=166, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=24, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=131, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=2092, PETRI_PLACES=166, PETRI_TRANSITIONS=189} [2024-11-12 20:37:10,791 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, 119 predicate places. [2024-11-12 20:37:10,791 INFO L471 AbstractCegarLoop]: Abstraction has has 166 places, 189 transitions, 2092 flow [2024-11-12 20:37:10,791 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 20.75) internal successors, (166), 8 states have internal predecessors, (166), 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) [2024-11-12 20:37:10,791 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 20:37:10,791 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 20:37:10,792 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-12 20:37:10,792 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2024-11-12 20:37:10,792 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 20:37:10,792 INFO L85 PathProgramCache]: Analyzing trace with hash 500448102, now seen corresponding path program 3 times [2024-11-12 20:37:10,793 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 20:37:10,793 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [397475656] [2024-11-12 20:37:10,793 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 20:37:10,793 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 20:37:10,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 20:37:11,151 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-12 20:37:11,152 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 20:37:11,152 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [397475656] [2024-11-12 20:37:11,152 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [397475656] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 20:37:11,152 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 20:37:11,152 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-12 20:37:11,152 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [179513835] [2024-11-12 20:37:11,153 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 20:37:11,153 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-12 20:37:11,153 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 20:37:11,153 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-12 20:37:11,153 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-11-12 20:37:11,154 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 47 [2024-11-12 20:37:11,154 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 166 places, 189 transitions, 2092 flow. Second operand has 8 states, 8 states have (on average 20.75) internal successors, (166), 8 states have internal predecessors, (166), 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) [2024-11-12 20:37:11,154 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 20:37:11,154 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 47 [2024-11-12 20:37:11,154 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 20:37:11,711 INFO L124 PetriNetUnfolderBase]: 783/2122 cut-off events. [2024-11-12 20:37:11,711 INFO L125 PetriNetUnfolderBase]: For 13758/13784 co-relation queries the response was YES. [2024-11-12 20:37:11,722 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9614 conditions, 2122 events. 783/2122 cut-off events. For 13758/13784 co-relation queries the response was YES. Maximal size of possible extension queue 90. Compared 14486 event pairs, 262 based on Foata normal form. 15/2112 useless extension candidates. Maximal degree in co-relation 9431. Up to 777 conditions per place. [2024-11-12 20:37:11,732 INFO L140 encePairwiseOnDemand]: 34/47 looper letters, 213 selfloop transitions, 61 changer transitions 0/292 dead transitions. [2024-11-12 20:37:11,732 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 173 places, 292 transitions, 3696 flow [2024-11-12 20:37:11,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-12 20:37:11,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-12 20:37:11,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 237 transitions. [2024-11-12 20:37:11,734 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6303191489361702 [2024-11-12 20:37:11,734 INFO L175 Difference]: Start difference. First operand has 166 places, 189 transitions, 2092 flow. Second operand 8 states and 237 transitions. [2024-11-12 20:37:11,734 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 173 places, 292 transitions, 3696 flow [2024-11-12 20:37:11,764 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 172 places, 292 transitions, 3639 flow, removed 28 selfloop flow, removed 1 redundant places. [2024-11-12 20:37:11,768 INFO L231 Difference]: Finished difference. Result has 177 places, 215 transitions, 2705 flow [2024-11-12 20:37:11,768 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=2035, PETRI_DIFFERENCE_MINUEND_PLACES=165, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=189, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=37, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=136, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=2705, PETRI_PLACES=177, PETRI_TRANSITIONS=215} [2024-11-12 20:37:11,769 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, 130 predicate places. [2024-11-12 20:37:11,769 INFO L471 AbstractCegarLoop]: Abstraction has has 177 places, 215 transitions, 2705 flow [2024-11-12 20:37:11,769 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 20.75) internal successors, (166), 8 states have internal predecessors, (166), 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) [2024-11-12 20:37:11,769 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 20:37:11,769 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 20:37:11,770 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-12 20:37:11,770 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2024-11-12 20:37:11,770 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 20:37:11,770 INFO L85 PathProgramCache]: Analyzing trace with hash -1974924906, now seen corresponding path program 4 times [2024-11-12 20:37:11,770 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 20:37:11,771 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [889061847] [2024-11-12 20:37:11,771 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 20:37:11,771 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 20:37:11,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 20:37:12,149 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-12 20:37:12,149 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 20:37:12,149 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [889061847] [2024-11-12 20:37:12,149 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [889061847] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 20:37:12,150 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 20:37:12,150 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-12 20:37:12,150 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1065699539] [2024-11-12 20:37:12,150 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 20:37:12,150 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-12 20:37:12,150 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 20:37:12,151 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-12 20:37:12,151 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-11-12 20:37:12,152 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 47 [2024-11-12 20:37:12,152 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 177 places, 215 transitions, 2705 flow. Second operand has 8 states, 8 states have (on average 20.75) internal successors, (166), 8 states have internal predecessors, (166), 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) [2024-11-12 20:37:12,152 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 20:37:12,152 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 47 [2024-11-12 20:37:12,152 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 20:37:12,760 INFO L124 PetriNetUnfolderBase]: 783/2142 cut-off events. [2024-11-12 20:37:12,760 INFO L125 PetriNetUnfolderBase]: For 17463/17486 co-relation queries the response was YES. [2024-11-12 20:37:12,775 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10241 conditions, 2142 events. 783/2142 cut-off events. For 17463/17486 co-relation queries the response was YES. Maximal size of possible extension queue 91. Compared 14730 event pairs, 242 based on Foata normal form. 11/2127 useless extension candidates. Maximal degree in co-relation 10052. Up to 777 conditions per place. [2024-11-12 20:37:12,787 INFO L140 encePairwiseOnDemand]: 35/47 looper letters, 222 selfloop transitions, 62 changer transitions 0/302 dead transitions. [2024-11-12 20:37:12,788 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 184 places, 302 transitions, 4178 flow [2024-11-12 20:37:12,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-12 20:37:12,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-12 20:37:12,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 236 transitions. [2024-11-12 20:37:12,789 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6276595744680851 [2024-11-12 20:37:12,789 INFO L175 Difference]: Start difference. First operand has 177 places, 215 transitions, 2705 flow. Second operand 8 states and 236 transitions. [2024-11-12 20:37:12,789 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 184 places, 302 transitions, 4178 flow [2024-11-12 20:37:12,869 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 183 places, 302 transitions, 4107 flow, removed 35 selfloop flow, removed 1 redundant places. [2024-11-12 20:37:12,876 INFO L231 Difference]: Finished difference. Result has 187 places, 228 transitions, 3088 flow [2024-11-12 20:37:12,877 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=2642, PETRI_DIFFERENCE_MINUEND_PLACES=176, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=215, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=50, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=158, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=3088, PETRI_PLACES=187, PETRI_TRANSITIONS=228} [2024-11-12 20:37:12,877 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, 140 predicate places. [2024-11-12 20:37:12,877 INFO L471 AbstractCegarLoop]: Abstraction has has 187 places, 228 transitions, 3088 flow [2024-11-12 20:37:12,878 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 20.75) internal successors, (166), 8 states have internal predecessors, (166), 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) [2024-11-12 20:37:12,878 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 20:37:12,878 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 20:37:12,878 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-12 20:37:12,878 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2024-11-12 20:37:12,879 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 20:37:12,879 INFO L85 PathProgramCache]: Analyzing trace with hash 1695675266, now seen corresponding path program 5 times [2024-11-12 20:37:12,879 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 20:37:12,879 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [729380033] [2024-11-12 20:37:12,880 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 20:37:12,880 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 20:37:12,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 20:37:13,271 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-12 20:37:13,272 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 20:37:13,272 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [729380033] [2024-11-12 20:37:13,272 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [729380033] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 20:37:13,272 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 20:37:13,272 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-12 20:37:13,272 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [402302659] [2024-11-12 20:37:13,273 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 20:37:13,273 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-12 20:37:13,273 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 20:37:13,273 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-12 20:37:13,273 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-12 20:37:13,274 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 47 [2024-11-12 20:37:13,274 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 187 places, 228 transitions, 3088 flow. Second operand has 9 states, 9 states have (on average 20.555555555555557) internal successors, (185), 9 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) [2024-11-12 20:37:13,274 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 20:37:13,274 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 47 [2024-11-12 20:37:13,274 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 20:37:14,032 INFO L124 PetriNetUnfolderBase]: 793/2179 cut-off events. [2024-11-12 20:37:14,033 INFO L125 PetriNetUnfolderBase]: For 19094/19133 co-relation queries the response was YES. [2024-11-12 20:37:14,047 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10522 conditions, 2179 events. 793/2179 cut-off events. For 19094/19133 co-relation queries the response was YES. Maximal size of possible extension queue 83. Compared 15093 event pairs, 134 based on Foata normal form. 17/2173 useless extension candidates. Maximal degree in co-relation 10328. Up to 676 conditions per place. [2024-11-12 20:37:14,059 INFO L140 encePairwiseOnDemand]: 35/47 looper letters, 243 selfloop transitions, 100 changer transitions 0/361 dead transitions. [2024-11-12 20:37:14,060 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 199 places, 361 transitions, 5047 flow [2024-11-12 20:37:14,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-12 20:37:14,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2024-11-12 20:37:14,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 363 transitions. [2024-11-12 20:37:14,061 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5941080196399345 [2024-11-12 20:37:14,061 INFO L175 Difference]: Start difference. First operand has 187 places, 228 transitions, 3088 flow. Second operand 13 states and 363 transitions. [2024-11-12 20:37:14,061 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 199 places, 361 transitions, 5047 flow [2024-11-12 20:37:14,114 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 196 places, 361 transitions, 4877 flow, removed 53 selfloop flow, removed 3 redundant places. [2024-11-12 20:37:14,119 INFO L231 Difference]: Finished difference. Result has 200 places, 246 transitions, 3484 flow [2024-11-12 20:37:14,120 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=2914, PETRI_DIFFERENCE_MINUEND_PLACES=184, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=226, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=81, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=139, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=3484, PETRI_PLACES=200, PETRI_TRANSITIONS=246} [2024-11-12 20:37:14,120 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, 153 predicate places. [2024-11-12 20:37:14,120 INFO L471 AbstractCegarLoop]: Abstraction has has 200 places, 246 transitions, 3484 flow [2024-11-12 20:37:14,121 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 20.555555555555557) internal successors, (185), 9 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) [2024-11-12 20:37:14,121 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 20:37:14,121 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 20:37:14,121 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-12 20:37:14,121 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2024-11-12 20:37:14,122 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 20:37:14,122 INFO L85 PathProgramCache]: Analyzing trace with hash -1539861036, now seen corresponding path program 6 times [2024-11-12 20:37:14,122 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 20:37:14,122 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [928747998] [2024-11-12 20:37:14,122 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 20:37:14,122 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 20:37:14,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 20:37:14,499 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-12 20:37:14,499 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 20:37:14,499 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [928747998] [2024-11-12 20:37:14,500 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [928747998] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 20:37:14,500 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 20:37:14,500 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-12 20:37:14,500 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2096277599] [2024-11-12 20:37:14,500 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 20:37:14,500 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-12 20:37:14,501 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 20:37:14,501 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-12 20:37:14,501 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-12 20:37:14,501 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 47 [2024-11-12 20:37:14,502 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 200 places, 246 transitions, 3484 flow. Second operand has 9 states, 9 states have (on average 20.555555555555557) internal successors, (185), 9 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) [2024-11-12 20:37:14,502 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 20:37:14,502 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 47 [2024-11-12 20:37:14,502 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 20:37:15,203 INFO L124 PetriNetUnfolderBase]: 764/2113 cut-off events. [2024-11-12 20:37:15,203 INFO L125 PetriNetUnfolderBase]: For 19787/19819 co-relation queries the response was YES. [2024-11-12 20:37:15,214 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10424 conditions, 2113 events. 764/2113 cut-off events. For 19787/19819 co-relation queries the response was YES. Maximal size of possible extension queue 76. Compared 14565 event pairs, 144 based on Foata normal form. 18/2109 useless extension candidates. Maximal degree in co-relation 10226. Up to 676 conditions per place. [2024-11-12 20:37:15,225 INFO L140 encePairwiseOnDemand]: 34/47 looper letters, 250 selfloop transitions, 99 changer transitions 0/367 dead transitions. [2024-11-12 20:37:15,226 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 211 places, 367 transitions, 5295 flow [2024-11-12 20:37:15,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-12 20:37:15,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2024-11-12 20:37:15,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 349 transitions. [2024-11-12 20:37:15,227 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6187943262411347 [2024-11-12 20:37:15,227 INFO L175 Difference]: Start difference. First operand has 200 places, 246 transitions, 3484 flow. Second operand 12 states and 349 transitions. [2024-11-12 20:37:15,227 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 211 places, 367 transitions, 5295 flow [2024-11-12 20:37:15,287 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 204 places, 367 transitions, 4993 flow, removed 67 selfloop flow, removed 7 redundant places. [2024-11-12 20:37:15,293 INFO L231 Difference]: Finished difference. Result has 207 places, 255 transitions, 3659 flow [2024-11-12 20:37:15,294 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=3173, PETRI_DIFFERENCE_MINUEND_PLACES=193, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=243, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=87, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=148, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=3659, PETRI_PLACES=207, PETRI_TRANSITIONS=255} [2024-11-12 20:37:15,294 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, 160 predicate places. [2024-11-12 20:37:15,294 INFO L471 AbstractCegarLoop]: Abstraction has has 207 places, 255 transitions, 3659 flow [2024-11-12 20:37:15,294 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 20.555555555555557) internal successors, (185), 9 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) [2024-11-12 20:37:15,295 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 20:37:15,295 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 20:37:15,295 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-12 20:37:15,295 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2024-11-12 20:37:15,297 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 20:37:15,297 INFO L85 PathProgramCache]: Analyzing trace with hash -1526154946, now seen corresponding path program 4 times [2024-11-12 20:37:15,297 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 20:37:15,297 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [286679357] [2024-11-12 20:37:15,298 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 20:37:15,298 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 20:37:15,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 20:37:15,627 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-12 20:37:15,627 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 20:37:15,627 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [286679357] [2024-11-12 20:37:15,627 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [286679357] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 20:37:15,627 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 20:37:15,628 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-12 20:37:15,628 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [302831624] [2024-11-12 20:37:15,628 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 20:37:15,628 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-12 20:37:15,628 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 20:37:15,628 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-12 20:37:15,628 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-11-12 20:37:15,629 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 47 [2024-11-12 20:37:15,629 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 207 places, 255 transitions, 3659 flow. Second operand has 8 states, 8 states have (on average 20.75) internal successors, (166), 8 states have internal predecessors, (166), 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) [2024-11-12 20:37:15,629 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 20:37:15,629 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 47 [2024-11-12 20:37:15,629 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 20:37:16,198 INFO L124 PetriNetUnfolderBase]: 731/2016 cut-off events. [2024-11-12 20:37:16,199 INFO L125 PetriNetUnfolderBase]: For 18395/18430 co-relation queries the response was YES. [2024-11-12 20:37:16,209 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9788 conditions, 2016 events. 731/2016 cut-off events. For 18395/18430 co-relation queries the response was YES. Maximal size of possible extension queue 76. Compared 13626 event pairs, 243 based on Foata normal form. 20/2015 useless extension candidates. Maximal degree in co-relation 9589. Up to 835 conditions per place. [2024-11-12 20:37:16,218 INFO L140 encePairwiseOnDemand]: 34/47 looper letters, 214 selfloop transitions, 81 changer transitions 0/313 dead transitions. [2024-11-12 20:37:16,218 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 213 places, 313 transitions, 4770 flow [2024-11-12 20:37:16,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-12 20:37:16,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-12 20:37:16,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 229 transitions. [2024-11-12 20:37:16,220 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6090425531914894 [2024-11-12 20:37:16,220 INFO L175 Difference]: Start difference. First operand has 207 places, 255 transitions, 3659 flow. Second operand 8 states and 229 transitions. [2024-11-12 20:37:16,220 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 213 places, 313 transitions, 4770 flow [2024-11-12 20:37:16,287 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 203 places, 313 transitions, 4592 flow, removed 17 selfloop flow, removed 10 redundant places. [2024-11-12 20:37:16,293 INFO L231 Difference]: Finished difference. Result has 206 places, 261 transitions, 3797 flow [2024-11-12 20:37:16,294 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=3415, PETRI_DIFFERENCE_MINUEND_PLACES=196, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=251, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=71, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=174, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=3797, PETRI_PLACES=206, PETRI_TRANSITIONS=261} [2024-11-12 20:37:16,294 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, 159 predicate places. [2024-11-12 20:37:16,294 INFO L471 AbstractCegarLoop]: Abstraction has has 206 places, 261 transitions, 3797 flow [2024-11-12 20:37:16,295 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 20.75) internal successors, (166), 8 states have internal predecessors, (166), 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) [2024-11-12 20:37:16,295 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 20:37:16,295 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 20:37:16,295 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-12 20:37:16,295 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2024-11-12 20:37:16,296 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 20:37:16,296 INFO L85 PathProgramCache]: Analyzing trace with hash -1202480660, now seen corresponding path program 5 times [2024-11-12 20:37:16,297 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 20:37:16,297 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [735929197] [2024-11-12 20:37:16,297 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 20:37:16,297 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 20:37:16,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 20:37:16,677 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-12 20:37:16,678 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 20:37:16,678 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [735929197] [2024-11-12 20:37:16,678 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [735929197] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 20:37:16,678 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 20:37:16,678 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-12 20:37:16,679 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1754192981] [2024-11-12 20:37:16,679 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 20:37:16,679 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-12 20:37:16,680 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 20:37:16,680 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-12 20:37:16,680 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-12 20:37:16,680 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 47 [2024-11-12 20:37:16,681 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 206 places, 261 transitions, 3797 flow. Second operand has 9 states, 9 states have (on average 20.555555555555557) internal successors, (185), 9 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) [2024-11-12 20:37:16,681 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 20:37:16,681 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 47 [2024-11-12 20:37:16,681 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 20:37:17,413 INFO L124 PetriNetUnfolderBase]: 793/2202 cut-off events. [2024-11-12 20:37:17,414 INFO L125 PetriNetUnfolderBase]: For 18865/18928 co-relation queries the response was YES. [2024-11-12 20:37:17,427 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10431 conditions, 2202 events. 793/2202 cut-off events. For 18865/18928 co-relation queries the response was YES. Maximal size of possible extension queue 86. Compared 15615 event pairs, 116 based on Foata normal form. 23/2203 useless extension candidates. Maximal degree in co-relation 10232. Up to 524 conditions per place. [2024-11-12 20:37:17,439 INFO L140 encePairwiseOnDemand]: 33/47 looper letters, 307 selfloop transitions, 94 changer transitions 0/419 dead transitions. [2024-11-12 20:37:17,439 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 217 places, 419 transitions, 6021 flow [2024-11-12 20:37:17,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-12 20:37:17,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2024-11-12 20:37:17,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 371 transitions. [2024-11-12 20:37:17,441 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6578014184397163 [2024-11-12 20:37:17,441 INFO L175 Difference]: Start difference. First operand has 206 places, 261 transitions, 3797 flow. Second operand 12 states and 371 transitions. [2024-11-12 20:37:17,441 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 217 places, 419 transitions, 6021 flow [2024-11-12 20:37:17,497 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 213 places, 419 transitions, 5837 flow, removed 12 selfloop flow, removed 4 redundant places. [2024-11-12 20:37:17,502 INFO L231 Difference]: Finished difference. Result has 218 places, 284 transitions, 4248 flow [2024-11-12 20:37:17,503 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=3653, PETRI_DIFFERENCE_MINUEND_PLACES=202, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=261, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=71, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=177, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=4248, PETRI_PLACES=218, PETRI_TRANSITIONS=284} [2024-11-12 20:37:17,503 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, 171 predicate places. [2024-11-12 20:37:17,503 INFO L471 AbstractCegarLoop]: Abstraction has has 218 places, 284 transitions, 4248 flow [2024-11-12 20:37:17,503 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 20.555555555555557) internal successors, (185), 9 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) [2024-11-12 20:37:17,503 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 20:37:17,504 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 20:37:17,504 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-12 20:37:17,504 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2024-11-12 20:37:17,505 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 20:37:17,505 INFO L85 PathProgramCache]: Analyzing trace with hash 617708274, now seen corresponding path program 6 times [2024-11-12 20:37:17,505 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 20:37:17,505 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2070352992] [2024-11-12 20:37:17,505 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 20:37:17,506 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 20:37:17,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 20:37:17,891 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-12 20:37:17,892 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 20:37:17,892 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2070352992] [2024-11-12 20:37:17,893 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2070352992] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 20:37:17,893 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 20:37:17,894 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-12 20:37:17,894 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [125099395] [2024-11-12 20:37:17,895 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 20:37:17,895 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-12 20:37:17,895 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 20:37:17,896 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-12 20:37:17,896 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-12 20:37:17,896 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 47 [2024-11-12 20:37:17,897 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 218 places, 284 transitions, 4248 flow. Second operand has 9 states, 9 states have (on average 20.555555555555557) internal successors, (185), 9 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) [2024-11-12 20:37:17,897 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 20:37:17,897 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 47 [2024-11-12 20:37:17,898 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 20:37:18,613 INFO L124 PetriNetUnfolderBase]: 793/2221 cut-off events. [2024-11-12 20:37:18,613 INFO L125 PetriNetUnfolderBase]: For 20966/21004 co-relation queries the response was YES. [2024-11-12 20:37:18,623 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11005 conditions, 2221 events. 793/2221 cut-off events. For 20966/21004 co-relation queries the response was YES. Maximal size of possible extension queue 83. Compared 15793 event pairs, 101 based on Foata normal form. 22/2223 useless extension candidates. Maximal degree in co-relation 10801. Up to 524 conditions per place. [2024-11-12 20:37:18,630 INFO L140 encePairwiseOnDemand]: 34/47 looper letters, 284 selfloop transitions, 112 changer transitions 0/414 dead transitions. [2024-11-12 20:37:18,630 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 230 places, 414 transitions, 6249 flow [2024-11-12 20:37:18,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-12 20:37:18,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2024-11-12 20:37:18,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 378 transitions. [2024-11-12 20:37:18,632 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.618657937806874 [2024-11-12 20:37:18,632 INFO L175 Difference]: Start difference. First operand has 218 places, 284 transitions, 4248 flow. Second operand 13 states and 378 transitions. [2024-11-12 20:37:18,632 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 230 places, 414 transitions, 6249 flow [2024-11-12 20:37:18,684 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 225 places, 414 transitions, 6017 flow, removed 47 selfloop flow, removed 5 redundant places. [2024-11-12 20:37:18,689 INFO L231 Difference]: Finished difference. Result has 229 places, 306 transitions, 4756 flow [2024-11-12 20:37:18,689 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=4055, PETRI_DIFFERENCE_MINUEND_PLACES=213, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=284, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=92, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=186, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=4756, PETRI_PLACES=229, PETRI_TRANSITIONS=306} [2024-11-12 20:37:18,690 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, 182 predicate places. [2024-11-12 20:37:18,690 INFO L471 AbstractCegarLoop]: Abstraction has has 229 places, 306 transitions, 4756 flow [2024-11-12 20:37:18,690 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 20.555555555555557) internal successors, (185), 9 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) [2024-11-12 20:37:18,690 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 20:37:18,690 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 20:37:18,690 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-12 20:37:18,690 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2024-11-12 20:37:18,691 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 20:37:18,691 INFO L85 PathProgramCache]: Analyzing trace with hash 563595488, now seen corresponding path program 7 times [2024-11-12 20:37:18,691 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 20:37:18,691 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [926850814] [2024-11-12 20:37:18,691 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 20:37:18,691 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 20:37:18,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 20:37:19,036 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-12 20:37:19,036 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 20:37:19,036 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [926850814] [2024-11-12 20:37:19,037 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [926850814] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 20:37:19,037 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 20:37:19,037 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-12 20:37:19,037 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [779145194] [2024-11-12 20:37:19,037 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 20:37:19,037 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-12 20:37:19,037 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 20:37:19,037 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-12 20:37:19,038 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2024-11-12 20:37:19,038 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 47 [2024-11-12 20:37:19,038 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 229 places, 306 transitions, 4756 flow. Second operand has 9 states, 9 states have (on average 20.555555555555557) internal successors, (185), 9 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) [2024-11-12 20:37:19,038 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 20:37:19,038 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 47 [2024-11-12 20:37:19,038 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 20:37:19,698 INFO L124 PetriNetUnfolderBase]: 764/2161 cut-off events. [2024-11-12 20:37:19,698 INFO L125 PetriNetUnfolderBase]: For 21415/21447 co-relation queries the response was YES. [2024-11-12 20:37:19,709 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10732 conditions, 2161 events. 764/2161 cut-off events. For 21415/21447 co-relation queries the response was YES. Maximal size of possible extension queue 83. Compared 15357 event pairs, 103 based on Foata normal form. 23/2164 useless extension candidates. Maximal degree in co-relation 10525. Up to 524 conditions per place. [2024-11-12 20:37:19,715 INFO L140 encePairwiseOnDemand]: 33/47 looper letters, 283 selfloop transitions, 115 changer transitions 0/416 dead transitions. [2024-11-12 20:37:19,716 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 240 places, 416 transitions, 6441 flow [2024-11-12 20:37:19,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-12 20:37:19,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2024-11-12 20:37:19,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 362 transitions. [2024-11-12 20:37:19,717 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6418439716312057 [2024-11-12 20:37:19,717 INFO L175 Difference]: Start difference. First operand has 229 places, 306 transitions, 4756 flow. Second operand 12 states and 362 transitions. [2024-11-12 20:37:19,717 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 240 places, 416 transitions, 6441 flow [2024-11-12 20:37:19,764 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 236 places, 416 transitions, 6211 flow, removed 82 selfloop flow, removed 4 redundant places. [2024-11-12 20:37:19,769 INFO L231 Difference]: Finished difference. Result has 239 places, 315 transitions, 5029 flow [2024-11-12 20:37:19,769 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=4523, PETRI_DIFFERENCE_MINUEND_PLACES=225, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=303, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=105, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=194, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=5029, PETRI_PLACES=239, PETRI_TRANSITIONS=315} [2024-11-12 20:37:19,770 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, 192 predicate places. [2024-11-12 20:37:19,770 INFO L471 AbstractCegarLoop]: Abstraction has has 239 places, 315 transitions, 5029 flow [2024-11-12 20:37:19,770 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 20.555555555555557) internal successors, (185), 9 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) [2024-11-12 20:37:19,770 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 20:37:19,770 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 20:37:19,770 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-11-12 20:37:19,770 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2024-11-12 20:37:19,771 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 20:37:19,771 INFO L85 PathProgramCache]: Analyzing trace with hash 1621907108, now seen corresponding path program 7 times [2024-11-12 20:37:19,771 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 20:37:19,771 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1919786142] [2024-11-12 20:37:19,771 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 20:37:19,771 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 20:37:19,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 20:37:20,091 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-12 20:37:20,092 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 20:37:20,092 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1919786142] [2024-11-12 20:37:20,092 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1919786142] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 20:37:20,093 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 20:37:20,093 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-12 20:37:20,093 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [10792538] [2024-11-12 20:37:20,093 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 20:37:20,093 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-12 20:37:20,094 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 20:37:20,094 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-12 20:37:20,094 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-11-12 20:37:20,094 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 47 [2024-11-12 20:37:20,095 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 239 places, 315 transitions, 5029 flow. Second operand has 8 states, 8 states have (on average 20.75) internal successors, (166), 8 states have internal predecessors, (166), 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) [2024-11-12 20:37:20,095 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 20:37:20,095 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 47 [2024-11-12 20:37:20,095 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 20:37:20,776 INFO L124 PetriNetUnfolderBase]: 658/1887 cut-off events. [2024-11-12 20:37:20,776 INFO L125 PetriNetUnfolderBase]: For 20241/20275 co-relation queries the response was YES. [2024-11-12 20:37:20,790 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9544 conditions, 1887 events. 658/1887 cut-off events. For 20241/20275 co-relation queries the response was YES. Maximal size of possible extension queue 81. Compared 12967 event pairs, 211 based on Foata normal form. 18/1880 useless extension candidates. Maximal degree in co-relation 9334. Up to 674 conditions per place. [2024-11-12 20:37:20,798 INFO L140 encePairwiseOnDemand]: 34/47 looper letters, 238 selfloop transitions, 101 changer transitions 0/357 dead transitions. [2024-11-12 20:37:20,798 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 243 places, 357 transitions, 5955 flow [2024-11-12 20:37:20,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-12 20:37:20,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-12 20:37:20,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 239 transitions. [2024-11-12 20:37:20,799 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6356382978723404 [2024-11-12 20:37:20,799 INFO L175 Difference]: Start difference. First operand has 239 places, 315 transitions, 5029 flow. Second operand 8 states and 239 transitions. [2024-11-12 20:37:20,799 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 243 places, 357 transitions, 5955 flow [2024-11-12 20:37:20,844 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 232 places, 357 transitions, 5751 flow, removed 15 selfloop flow, removed 11 redundant places. [2024-11-12 20:37:20,848 INFO L231 Difference]: Finished difference. Result has 235 places, 307 transitions, 5046 flow [2024-11-12 20:37:20,849 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=4630, PETRI_DIFFERENCE_MINUEND_PLACES=225, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=297, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=91, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=200, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=5046, PETRI_PLACES=235, PETRI_TRANSITIONS=307} [2024-11-12 20:37:20,849 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, 188 predicate places. [2024-11-12 20:37:20,849 INFO L471 AbstractCegarLoop]: Abstraction has has 235 places, 307 transitions, 5046 flow [2024-11-12 20:37:20,849 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 20.75) internal successors, (166), 8 states have internal predecessors, (166), 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) [2024-11-12 20:37:20,849 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 20:37:20,849 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 20:37:20,849 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-11-12 20:37:20,849 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2024-11-12 20:37:20,850 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 20:37:20,850 INFO L85 PathProgramCache]: Analyzing trace with hash -2062484222, now seen corresponding path program 1 times [2024-11-12 20:37:20,850 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 20:37:20,850 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [397634066] [2024-11-12 20:37:20,850 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 20:37:20,850 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 20:37:20,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 20:37:21,207 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-12 20:37:21,208 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 20:37:21,208 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [397634066] [2024-11-12 20:37:21,208 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [397634066] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 20:37:21,208 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 20:37:21,208 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-12 20:37:21,208 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [576899945] [2024-11-12 20:37:21,208 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 20:37:21,209 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-12 20:37:21,209 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 20:37:21,209 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-12 20:37:21,209 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2024-11-12 20:37:21,236 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 47 [2024-11-12 20:37:21,237 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 235 places, 307 transitions, 5046 flow. Second operand has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 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) [2024-11-12 20:37:21,237 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 20:37:21,237 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 47 [2024-11-12 20:37:21,237 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 20:37:22,408 INFO L124 PetriNetUnfolderBase]: 1220/2924 cut-off events. [2024-11-12 20:37:22,409 INFO L125 PetriNetUnfolderBase]: For 27598/27626 co-relation queries the response was YES. [2024-11-12 20:37:22,426 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14086 conditions, 2924 events. 1220/2924 cut-off events. For 27598/27626 co-relation queries the response was YES. Maximal size of possible extension queue 124. Compared 20330 event pairs, 453 based on Foata normal form. 30/2907 useless extension candidates. Maximal degree in co-relation 13877. Up to 1090 conditions per place. [2024-11-12 20:37:22,442 INFO L140 encePairwiseOnDemand]: 32/47 looper letters, 313 selfloop transitions, 146 changer transitions 0/470 dead transitions. [2024-11-12 20:37:22,442 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 252 places, 470 transitions, 7371 flow [2024-11-12 20:37:22,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-12 20:37:22,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2024-11-12 20:37:22,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 425 transitions. [2024-11-12 20:37:22,444 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5023640661938534 [2024-11-12 20:37:22,444 INFO L175 Difference]: Start difference. First operand has 235 places, 307 transitions, 5046 flow. Second operand 18 states and 425 transitions. [2024-11-12 20:37:22,444 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 252 places, 470 transitions, 7371 flow [2024-11-12 20:37:22,535 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 248 places, 470 transitions, 7139 flow, removed 16 selfloop flow, removed 4 redundant places. [2024-11-12 20:37:22,543 INFO L231 Difference]: Finished difference. Result has 260 places, 355 transitions, 6089 flow [2024-11-12 20:37:22,544 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=4866, PETRI_DIFFERENCE_MINUEND_PLACES=231, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=307, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=98, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=194, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=6089, PETRI_PLACES=260, PETRI_TRANSITIONS=355} [2024-11-12 20:37:22,544 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, 213 predicate places. [2024-11-12 20:37:22,544 INFO L471 AbstractCegarLoop]: Abstraction has has 260 places, 355 transitions, 6089 flow [2024-11-12 20:37:22,545 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 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) [2024-11-12 20:37:22,545 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 20:37:22,545 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 20:37:22,545 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-11-12 20:37:22,546 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2024-11-12 20:37:22,547 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 20:37:22,547 INFO L85 PathProgramCache]: Analyzing trace with hash 509382200, now seen corresponding path program 2 times [2024-11-12 20:37:22,547 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 20:37:22,547 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1521498966] [2024-11-12 20:37:22,547 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 20:37:22,547 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 20:37:22,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 20:37:22,939 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-12 20:37:22,940 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 20:37:22,940 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1521498966] [2024-11-12 20:37:22,940 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1521498966] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 20:37:22,940 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 20:37:22,940 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-12 20:37:22,940 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1233342709] [2024-11-12 20:37:22,940 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 20:37:22,941 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-12 20:37:22,941 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 20:37:22,941 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-12 20:37:22,941 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2024-11-12 20:37:22,982 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 47 [2024-11-12 20:37:22,983 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 260 places, 355 transitions, 6089 flow. Second operand has 11 states, 11 states have (on average 16.454545454545453) internal successors, (181), 11 states have internal predecessors, (181), 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) [2024-11-12 20:37:22,983 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 20:37:22,983 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 47 [2024-11-12 20:37:22,983 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 20:37:23,945 INFO L124 PetriNetUnfolderBase]: 1291/3121 cut-off events. [2024-11-12 20:37:23,945 INFO L125 PetriNetUnfolderBase]: For 37704/37724 co-relation queries the response was YES. [2024-11-12 20:37:23,965 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17213 conditions, 3121 events. 1291/3121 cut-off events. For 37704/37724 co-relation queries the response was YES. Maximal size of possible extension queue 133. Compared 22586 event pairs, 469 based on Foata normal form. 31/3119 useless extension candidates. Maximal degree in co-relation 16992. Up to 2004 conditions per place. [2024-11-12 20:37:23,979 INFO L140 encePairwiseOnDemand]: 34/47 looper letters, 401 selfloop transitions, 82 changer transitions 0/496 dead transitions. [2024-11-12 20:37:23,979 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 272 places, 496 transitions, 8882 flow [2024-11-12 20:37:23,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-12 20:37:23,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2024-11-12 20:37:23,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 306 transitions. [2024-11-12 20:37:23,980 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5008183306055647 [2024-11-12 20:37:23,980 INFO L175 Difference]: Start difference. First operand has 260 places, 355 transitions, 6089 flow. Second operand 13 states and 306 transitions. [2024-11-12 20:37:23,980 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 272 places, 496 transitions, 8882 flow [2024-11-12 20:37:24,089 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 270 places, 496 transitions, 8724 flow, removed 16 selfloop flow, removed 2 redundant places. [2024-11-12 20:37:24,096 INFO L231 Difference]: Finished difference. Result has 278 places, 409 transitions, 7080 flow [2024-11-12 20:37:24,096 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=5969, PETRI_DIFFERENCE_MINUEND_PLACES=258, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=355, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=30, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=283, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=7080, PETRI_PLACES=278, PETRI_TRANSITIONS=409} [2024-11-12 20:37:24,097 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, 231 predicate places. [2024-11-12 20:37:24,097 INFO L471 AbstractCegarLoop]: Abstraction has has 278 places, 409 transitions, 7080 flow [2024-11-12 20:37:24,097 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 16.454545454545453) internal successors, (181), 11 states have internal predecessors, (181), 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) [2024-11-12 20:37:24,097 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 20:37:24,097 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 20:37:24,097 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-11-12 20:37:24,097 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2024-11-12 20:37:24,098 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 20:37:24,098 INFO L85 PathProgramCache]: Analyzing trace with hash 1756135550, now seen corresponding path program 3 times [2024-11-12 20:37:24,098 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 20:37:24,098 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1878625208] [2024-11-12 20:37:24,098 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 20:37:24,098 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 20:37:24,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 20:37:24,439 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-12 20:37:24,440 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 20:37:24,440 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1878625208] [2024-11-12 20:37:24,440 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1878625208] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 20:37:24,440 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 20:37:24,440 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-12 20:37:24,440 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [300942473] [2024-11-12 20:37:24,440 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 20:37:24,441 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-12 20:37:24,441 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 20:37:24,441 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-12 20:37:24,441 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2024-11-12 20:37:24,455 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 47 [2024-11-12 20:37:24,456 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 278 places, 409 transitions, 7080 flow. Second operand has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 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) [2024-11-12 20:37:24,456 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 20:37:24,456 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 47 [2024-11-12 20:37:24,456 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 20:37:25,840 INFO L124 PetriNetUnfolderBase]: 1544/3596 cut-off events. [2024-11-12 20:37:25,840 INFO L125 PetriNetUnfolderBase]: For 50260/50294 co-relation queries the response was YES. [2024-11-12 20:37:25,856 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21142 conditions, 3596 events. 1544/3596 cut-off events. For 50260/50294 co-relation queries the response was YES. Maximal size of possible extension queue 139. Compared 25810 event pairs, 559 based on Foata normal form. 30/3590 useless extension candidates. Maximal degree in co-relation 20912. Up to 1537 conditions per place. [2024-11-12 20:37:25,872 INFO L140 encePairwiseOnDemand]: 32/47 looper letters, 373 selfloop transitions, 194 changer transitions 0/578 dead transitions. [2024-11-12 20:37:25,873 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 296 places, 578 transitions, 10111 flow [2024-11-12 20:37:25,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-12 20:37:25,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2024-11-12 20:37:25,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 444 transitions. [2024-11-12 20:37:25,876 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.49720044792833146 [2024-11-12 20:37:25,876 INFO L175 Difference]: Start difference. First operand has 278 places, 409 transitions, 7080 flow. Second operand 19 states and 444 transitions. [2024-11-12 20:37:25,876 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 296 places, 578 transitions, 10111 flow [2024-11-12 20:37:26,046 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 295 places, 578 transitions, 10066 flow, removed 15 selfloop flow, removed 1 redundant places. [2024-11-12 20:37:26,054 INFO L231 Difference]: Finished difference. Result has 307 places, 462 transitions, 8681 flow [2024-11-12 20:37:26,054 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=7041, PETRI_DIFFERENCE_MINUEND_PLACES=277, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=409, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=142, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=247, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=8681, PETRI_PLACES=307, PETRI_TRANSITIONS=462} [2024-11-12 20:37:26,055 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, 260 predicate places. [2024-11-12 20:37:26,055 INFO L471 AbstractCegarLoop]: Abstraction has has 307 places, 462 transitions, 8681 flow [2024-11-12 20:37:26,055 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 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) [2024-11-12 20:37:26,055 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 20:37:26,055 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 20:37:26,055 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-11-12 20:37:26,055 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2024-11-12 20:37:26,056 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 20:37:26,056 INFO L85 PathProgramCache]: Analyzing trace with hash -403979112, now seen corresponding path program 1 times [2024-11-12 20:37:26,056 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 20:37:26,056 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1277707939] [2024-11-12 20:37:26,056 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 20:37:26,057 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 20:37:26,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 20:37:26,336 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-12 20:37:26,336 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 20:37:26,337 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1277707939] [2024-11-12 20:37:26,337 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1277707939] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 20:37:26,337 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 20:37:26,337 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-12 20:37:26,337 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1441629436] [2024-11-12 20:37:26,337 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 20:37:26,337 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-12 20:37:26,338 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 20:37:26,338 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-12 20:37:26,338 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2024-11-12 20:37:26,356 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 47 [2024-11-12 20:37:26,357 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 307 places, 462 transitions, 8681 flow. Second operand has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 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) [2024-11-12 20:37:26,357 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 20:37:26,357 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 47 [2024-11-12 20:37:26,357 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 20:37:27,979 INFO L124 PetriNetUnfolderBase]: 1706/3874 cut-off events. [2024-11-12 20:37:27,979 INFO L125 PetriNetUnfolderBase]: For 65566/65629 co-relation queries the response was YES. [2024-11-12 20:37:28,007 INFO L83 FinitePrefix]: Finished finitePrefix Result has 24309 conditions, 3874 events. 1706/3874 cut-off events. For 65566/65629 co-relation queries the response was YES. Maximal size of possible extension queue 144. Compared 28038 event pairs, 646 based on Foata normal form. 35/3868 useless extension candidates. Maximal degree in co-relation 24065. Up to 1751 conditions per place. [2024-11-12 20:37:28,029 INFO L140 encePairwiseOnDemand]: 32/47 looper letters, 430 selfloop transitions, 197 changer transitions 0/640 dead transitions. [2024-11-12 20:37:28,029 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 322 places, 640 transitions, 11837 flow [2024-11-12 20:37:28,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-12 20:37:28,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2024-11-12 20:37:28,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 409 transitions. [2024-11-12 20:37:28,031 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5438829787234043 [2024-11-12 20:37:28,031 INFO L175 Difference]: Start difference. First operand has 307 places, 462 transitions, 8681 flow. Second operand 16 states and 409 transitions. [2024-11-12 20:37:28,031 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 322 places, 640 transitions, 11837 flow [2024-11-12 20:37:28,265 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 318 places, 640 transitions, 11521 flow, removed 85 selfloop flow, removed 4 redundant places. [2024-11-12 20:37:28,274 INFO L231 Difference]: Finished difference. Result has 327 places, 488 transitions, 9382 flow [2024-11-12 20:37:28,275 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=8409, PETRI_DIFFERENCE_MINUEND_PLACES=303, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=462, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=173, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=279, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=9382, PETRI_PLACES=327, PETRI_TRANSITIONS=488} [2024-11-12 20:37:28,275 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, 280 predicate places. [2024-11-12 20:37:28,275 INFO L471 AbstractCegarLoop]: Abstraction has has 327 places, 488 transitions, 9382 flow [2024-11-12 20:37:28,275 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 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) [2024-11-12 20:37:28,276 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 20:37:28,276 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 20:37:28,276 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2024-11-12 20:37:28,276 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2024-11-12 20:37:28,277 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 20:37:28,277 INFO L85 PathProgramCache]: Analyzing trace with hash 1282057256, now seen corresponding path program 4 times [2024-11-12 20:37:28,277 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 20:37:28,277 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1967457870] [2024-11-12 20:37:28,277 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 20:37:28,277 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 20:37:28,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 20:37:28,731 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-12 20:37:28,732 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 20:37:28,732 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1967457870] [2024-11-12 20:37:28,732 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1967457870] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 20:37:28,732 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 20:37:28,732 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-12 20:37:28,733 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [872036210] [2024-11-12 20:37:28,733 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 20:37:28,733 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-12 20:37:28,734 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 20:37:28,735 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-12 20:37:28,735 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2024-11-12 20:37:28,790 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 47 [2024-11-12 20:37:28,790 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 327 places, 488 transitions, 9382 flow. Second operand has 11 states, 11 states have (on average 16.454545454545453) internal successors, (181), 11 states have internal predecessors, (181), 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) [2024-11-12 20:37:28,791 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 20:37:28,791 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 47 [2024-11-12 20:37:28,791 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 20:37:30,331 INFO L124 PetriNetUnfolderBase]: 1761/4044 cut-off events. [2024-11-12 20:37:30,331 INFO L125 PetriNetUnfolderBase]: For 80098/80151 co-relation queries the response was YES. [2024-11-12 20:37:30,365 INFO L83 FinitePrefix]: Finished finitePrefix Result has 27870 conditions, 4044 events. 1761/4044 cut-off events. For 80098/80151 co-relation queries the response was YES. Maximal size of possible extension queue 169. Compared 30170 event pairs, 581 based on Foata normal form. 27/4030 useless extension candidates. Maximal degree in co-relation 27617. Up to 2735 conditions per place. [2024-11-12 20:37:30,390 INFO L140 encePairwiseOnDemand]: 34/47 looper letters, 514 selfloop transitions, 103 changer transitions 0/632 dead transitions. [2024-11-12 20:37:30,391 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 339 places, 632 transitions, 12923 flow [2024-11-12 20:37:30,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-12 20:37:30,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2024-11-12 20:37:30,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 301 transitions. [2024-11-12 20:37:30,392 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.49263502454991814 [2024-11-12 20:37:30,392 INFO L175 Difference]: Start difference. First operand has 327 places, 488 transitions, 9382 flow. Second operand 13 states and 301 transitions. [2024-11-12 20:37:30,392 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 339 places, 632 transitions, 12923 flow [2024-11-12 20:37:30,708 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 335 places, 632 transitions, 12620 flow, removed 28 selfloop flow, removed 4 redundant places. [2024-11-12 20:37:30,830 INFO L231 Difference]: Finished difference. Result has 343 places, 540 transitions, 10603 flow [2024-11-12 20:37:30,831 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=9124, PETRI_DIFFERENCE_MINUEND_PLACES=323, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=488, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=53, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=389, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=10603, PETRI_PLACES=343, PETRI_TRANSITIONS=540} [2024-11-12 20:37:30,831 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, 296 predicate places. [2024-11-12 20:37:30,831 INFO L471 AbstractCegarLoop]: Abstraction has has 343 places, 540 transitions, 10603 flow [2024-11-12 20:37:30,832 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 16.454545454545453) internal successors, (181), 11 states have internal predecessors, (181), 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) [2024-11-12 20:37:30,832 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 20:37:30,832 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 20:37:30,832 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2024-11-12 20:37:30,832 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2024-11-12 20:37:30,832 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 20:37:30,833 INFO L85 PathProgramCache]: Analyzing trace with hash -712459620, now seen corresponding path program 5 times [2024-11-12 20:37:30,833 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 20:37:30,833 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [370964171] [2024-11-12 20:37:30,833 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 20:37:30,833 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 20:37:30,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 20:37:31,129 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-12 20:37:31,130 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 20:37:31,130 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [370964171] [2024-11-12 20:37:31,130 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [370964171] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 20:37:31,130 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 20:37:31,130 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-12 20:37:31,130 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [961679405] [2024-11-12 20:37:31,130 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 20:37:31,130 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-12 20:37:31,130 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 20:37:31,131 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-12 20:37:31,131 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2024-11-12 20:37:31,149 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 47 [2024-11-12 20:37:31,149 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 343 places, 540 transitions, 10603 flow. Second operand has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 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) [2024-11-12 20:37:31,150 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 20:37:31,150 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 47 [2024-11-12 20:37:31,150 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 20:37:33,121 INFO L124 PetriNetUnfolderBase]: 2021/4549 cut-off events. [2024-11-12 20:37:33,121 INFO L125 PetriNetUnfolderBase]: For 101577/101646 co-relation queries the response was YES. [2024-11-12 20:37:33,150 INFO L83 FinitePrefix]: Finished finitePrefix Result has 32460 conditions, 4549 events. 2021/4549 cut-off events. For 101577/101646 co-relation queries the response was YES. Maximal size of possible extension queue 168. Compared 33710 event pairs, 800 based on Foata normal form. 26/4534 useless extension candidates. Maximal degree in co-relation 32198. Up to 1984 conditions per place. [2024-11-12 20:37:33,168 INFO L140 encePairwiseOnDemand]: 32/47 looper letters, 531 selfloop transitions, 150 changer transitions 0/693 dead transitions. [2024-11-12 20:37:33,168 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 361 places, 693 transitions, 13997 flow [2024-11-12 20:37:33,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-12 20:37:33,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2024-11-12 20:37:33,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 451 transitions. [2024-11-12 20:37:33,169 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5050391937290034 [2024-11-12 20:37:33,169 INFO L175 Difference]: Start difference. First operand has 343 places, 540 transitions, 10603 flow. Second operand 19 states and 451 transitions. [2024-11-12 20:37:33,169 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 361 places, 693 transitions, 13997 flow [2024-11-12 20:37:33,499 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 357 places, 693 transitions, 13769 flow, removed 84 selfloop flow, removed 4 redundant places. [2024-11-12 20:37:33,508 INFO L231 Difference]: Finished difference. Result has 367 places, 577 transitions, 11645 flow [2024-11-12 20:37:33,508 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=10410, PETRI_DIFFERENCE_MINUEND_PLACES=339, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=540, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=115, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=410, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=11645, PETRI_PLACES=367, PETRI_TRANSITIONS=577} [2024-11-12 20:37:33,509 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, 320 predicate places. [2024-11-12 20:37:33,509 INFO L471 AbstractCegarLoop]: Abstraction has has 367 places, 577 transitions, 11645 flow [2024-11-12 20:37:33,509 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 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) [2024-11-12 20:37:33,509 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 20:37:33,509 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 20:37:33,509 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2024-11-12 20:37:33,509 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2024-11-12 20:37:33,510 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 20:37:33,510 INFO L85 PathProgramCache]: Analyzing trace with hash 886889304, now seen corresponding path program 2 times [2024-11-12 20:37:33,510 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 20:37:33,510 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1438046741] [2024-11-12 20:37:33,510 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 20:37:33,510 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 20:37:33,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 20:37:33,840 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-12 20:37:33,841 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 20:37:33,841 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1438046741] [2024-11-12 20:37:33,841 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1438046741] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 20:37:33,841 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 20:37:33,841 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-12 20:37:33,841 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1338391361] [2024-11-12 20:37:33,841 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 20:37:33,841 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-12 20:37:33,841 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 20:37:33,842 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-12 20:37:33,842 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2024-11-12 20:37:33,887 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 47 [2024-11-12 20:37:33,888 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 367 places, 577 transitions, 11645 flow. Second operand has 11 states, 11 states have (on average 16.454545454545453) internal successors, (181), 11 states have internal predecessors, (181), 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) [2024-11-12 20:37:33,888 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 20:37:33,888 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 47 [2024-11-12 20:37:33,888 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 20:37:35,551 INFO L124 PetriNetUnfolderBase]: 1955/4453 cut-off events. [2024-11-12 20:37:35,551 INFO L125 PetriNetUnfolderBase]: For 116661/116672 co-relation queries the response was YES. [2024-11-12 20:37:35,596 INFO L83 FinitePrefix]: Finished finitePrefix Result has 33557 conditions, 4453 events. 1955/4453 cut-off events. For 116661/116672 co-relation queries the response was YES. Maximal size of possible extension queue 188. Compared 33625 event pairs, 612 based on Foata normal form. 34/4457 useless extension candidates. Maximal degree in co-relation 33284. Up to 3146 conditions per place. [2024-11-12 20:37:35,618 INFO L140 encePairwiseOnDemand]: 33/47 looper letters, 650 selfloop transitions, 69 changer transitions 0/735 dead transitions. [2024-11-12 20:37:35,618 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 379 places, 735 transitions, 15576 flow [2024-11-12 20:37:35,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-12 20:37:35,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2024-11-12 20:37:35,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 314 transitions. [2024-11-12 20:37:35,619 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.513911620294599 [2024-11-12 20:37:35,619 INFO L175 Difference]: Start difference. First operand has 367 places, 577 transitions, 11645 flow. Second operand 13 states and 314 transitions. [2024-11-12 20:37:35,619 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 379 places, 735 transitions, 15576 flow [2024-11-12 20:37:36,095 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 378 places, 735 transitions, 15385 flow, removed 95 selfloop flow, removed 1 redundant places. [2024-11-12 20:37:36,107 INFO L231 Difference]: Finished difference. Result has 386 places, 606 transitions, 12183 flow [2024-11-12 20:37:36,107 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=11482, PETRI_DIFFERENCE_MINUEND_PLACES=366, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=577, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=43, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=515, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=12183, PETRI_PLACES=386, PETRI_TRANSITIONS=606} [2024-11-12 20:37:36,108 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, 339 predicate places. [2024-11-12 20:37:36,108 INFO L471 AbstractCegarLoop]: Abstraction has has 386 places, 606 transitions, 12183 flow [2024-11-12 20:37:36,108 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 16.454545454545453) internal successors, (181), 11 states have internal predecessors, (181), 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) [2024-11-12 20:37:36,108 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 20:37:36,108 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 20:37:36,108 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2024-11-12 20:37:36,108 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2024-11-12 20:37:36,109 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 20:37:36,109 INFO L85 PathProgramCache]: Analyzing trace with hash 1599278530, now seen corresponding path program 3 times [2024-11-12 20:37:36,109 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 20:37:36,109 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1673428153] [2024-11-12 20:37:36,109 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 20:37:36,109 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 20:37:36,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 20:37:36,406 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-12 20:37:36,406 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 20:37:36,407 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1673428153] [2024-11-12 20:37:36,407 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1673428153] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 20:37:36,407 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 20:37:36,407 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-12 20:37:36,407 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [27247672] [2024-11-12 20:37:36,407 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 20:37:36,407 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-12 20:37:36,408 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 20:37:36,408 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-12 20:37:36,408 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2024-11-12 20:37:36,438 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 47 [2024-11-12 20:37:36,438 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 386 places, 606 transitions, 12183 flow. Second operand has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 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) [2024-11-12 20:37:36,439 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 20:37:36,439 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 47 [2024-11-12 20:37:36,439 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 20:37:38,744 INFO L124 PetriNetUnfolderBase]: 2345/5235 cut-off events. [2024-11-12 20:37:38,745 INFO L125 PetriNetUnfolderBase]: For 135687/135733 co-relation queries the response was YES. [2024-11-12 20:37:38,804 INFO L83 FinitePrefix]: Finished finitePrefix Result has 39662 conditions, 5235 events. 2345/5235 cut-off events. For 135687/135733 co-relation queries the response was YES. Maximal size of possible extension queue 199. Compared 39986 event pairs, 913 based on Foata normal form. 37/5232 useless extension candidates. Maximal degree in co-relation 39380. Up to 2021 conditions per place. [2024-11-12 20:37:38,828 INFO L140 encePairwiseOnDemand]: 31/47 looper letters, 676 selfloop transitions, 129 changer transitions 0/819 dead transitions. [2024-11-12 20:37:38,828 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 404 places, 819 transitions, 17075 flow [2024-11-12 20:37:38,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-12 20:37:38,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2024-11-12 20:37:38,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 460 transitions. [2024-11-12 20:37:38,829 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5151175811870101 [2024-11-12 20:37:38,829 INFO L175 Difference]: Start difference. First operand has 386 places, 606 transitions, 12183 flow. Second operand 19 states and 460 transitions. [2024-11-12 20:37:38,829 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 404 places, 819 transitions, 17075 flow [2024-11-12 20:37:39,361 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 401 places, 819 transitions, 16962 flow, removed 23 selfloop flow, removed 3 redundant places. [2024-11-12 20:37:39,372 INFO L231 Difference]: Finished difference. Result has 410 places, 659 transitions, 13337 flow [2024-11-12 20:37:39,373 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=12090, PETRI_DIFFERENCE_MINUEND_PLACES=383, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=606, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=82, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=509, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=13337, PETRI_PLACES=410, PETRI_TRANSITIONS=659} [2024-11-12 20:37:39,373 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, 363 predicate places. [2024-11-12 20:37:39,373 INFO L471 AbstractCegarLoop]: Abstraction has has 410 places, 659 transitions, 13337 flow [2024-11-12 20:37:39,374 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 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) [2024-11-12 20:37:39,374 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 20:37:39,374 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 20:37:39,374 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2024-11-12 20:37:39,374 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2024-11-12 20:37:39,375 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 20:37:39,375 INFO L85 PathProgramCache]: Analyzing trace with hash -490389874, now seen corresponding path program 6 times [2024-11-12 20:37:39,375 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 20:37:39,375 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1310512605] [2024-11-12 20:37:39,375 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 20:37:39,375 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 20:37:39,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 20:37:39,701 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-12 20:37:39,701 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 20:37:39,701 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1310512605] [2024-11-12 20:37:39,701 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1310512605] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 20:37:39,701 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 20:37:39,701 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-12 20:37:39,701 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1108851011] [2024-11-12 20:37:39,702 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 20:37:39,702 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-12 20:37:39,702 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 20:37:39,702 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-12 20:37:39,702 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2024-11-12 20:37:39,727 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 47 [2024-11-12 20:37:39,728 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 410 places, 659 transitions, 13337 flow. Second operand has 11 states, 11 states have (on average 16.454545454545453) internal successors, (181), 11 states have internal predecessors, (181), 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) [2024-11-12 20:37:39,728 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 20:37:39,728 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 47 [2024-11-12 20:37:39,728 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 20:37:41,517 INFO L124 PetriNetUnfolderBase]: 2182/4925 cut-off events. [2024-11-12 20:37:41,518 INFO L125 PetriNetUnfolderBase]: For 154468/154488 co-relation queries the response was YES. [2024-11-12 20:37:41,567 INFO L83 FinitePrefix]: Finished finitePrefix Result has 40352 conditions, 4925 events. 2182/4925 cut-off events. For 154468/154488 co-relation queries the response was YES. Maximal size of possible extension queue 212. Compared 38068 event pairs, 667 based on Foata normal form. 26/4910 useless extension candidates. Maximal degree in co-relation 40059. Up to 3592 conditions per place. [2024-11-12 20:37:41,591 INFO L140 encePairwiseOnDemand]: 34/47 looper letters, 667 selfloop transitions, 98 changer transitions 0/782 dead transitions. [2024-11-12 20:37:41,591 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 422 places, 782 transitions, 16808 flow [2024-11-12 20:37:41,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-12 20:37:41,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2024-11-12 20:37:41,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 312 transitions. [2024-11-12 20:37:41,593 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5106382978723404 [2024-11-12 20:37:41,593 INFO L175 Difference]: Start difference. First operand has 410 places, 659 transitions, 13337 flow. Second operand 13 states and 312 transitions. [2024-11-12 20:37:41,593 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 422 places, 782 transitions, 16808 flow [2024-11-12 20:37:42,280 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 421 places, 782 transitions, 16697 flow, removed 55 selfloop flow, removed 1 redundant places. [2024-11-12 20:37:42,296 INFO L231 Difference]: Finished difference. Result has 428 places, 687 transitions, 14206 flow [2024-11-12 20:37:42,297 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=13234, PETRI_DIFFERENCE_MINUEND_PLACES=409, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=659, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=71, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=573, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=14206, PETRI_PLACES=428, PETRI_TRANSITIONS=687} [2024-11-12 20:37:42,297 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, 381 predicate places. [2024-11-12 20:37:42,297 INFO L471 AbstractCegarLoop]: Abstraction has has 428 places, 687 transitions, 14206 flow [2024-11-12 20:37:42,298 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 16.454545454545453) internal successors, (181), 11 states have internal predecessors, (181), 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) [2024-11-12 20:37:42,298 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 20:37:42,298 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 20:37:42,298 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2024-11-12 20:37:42,298 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2024-11-12 20:37:42,299 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 20:37:42,299 INFO L85 PathProgramCache]: Analyzing trace with hash -1398929920, now seen corresponding path program 4 times [2024-11-12 20:37:42,299 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 20:37:42,299 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2105389937] [2024-11-12 20:37:42,299 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 20:37:42,300 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 20:37:42,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 20:37:42,558 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-12 20:37:42,558 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 20:37:42,558 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2105389937] [2024-11-12 20:37:42,558 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2105389937] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 20:37:42,558 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 20:37:42,558 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-12 20:37:42,559 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1827659917] [2024-11-12 20:37:42,559 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 20:37:42,559 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-12 20:37:42,559 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 20:37:42,560 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-12 20:37:42,561 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2024-11-12 20:37:42,576 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 47 [2024-11-12 20:37:42,577 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 428 places, 687 transitions, 14206 flow. Second operand has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 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) [2024-11-12 20:37:42,577 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 20:37:42,577 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 47 [2024-11-12 20:37:42,577 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 20:37:44,847 INFO L124 PetriNetUnfolderBase]: 2744/6061 cut-off events. [2024-11-12 20:37:44,847 INFO L125 PetriNetUnfolderBase]: For 194832/194887 co-relation queries the response was YES. [2024-11-12 20:37:44,920 INFO L83 FinitePrefix]: Finished finitePrefix Result has 49471 conditions, 6061 events. 2744/6061 cut-off events. For 194832/194887 co-relation queries the response was YES. Maximal size of possible extension queue 232. Compared 47487 event pairs, 1021 based on Foata normal form. 39/6053 useless extension candidates. Maximal degree in co-relation 49170. Up to 2063 conditions per place. [2024-11-12 20:37:44,951 INFO L140 encePairwiseOnDemand]: 31/47 looper letters, 642 selfloop transitions, 261 changer transitions 0/917 dead transitions. [2024-11-12 20:37:44,952 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 445 places, 917 transitions, 19756 flow [2024-11-12 20:37:44,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-12 20:37:44,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2024-11-12 20:37:44,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 428 transitions. [2024-11-12 20:37:44,953 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5059101654846335 [2024-11-12 20:37:44,953 INFO L175 Difference]: Start difference. First operand has 428 places, 687 transitions, 14206 flow. Second operand 18 states and 428 transitions. [2024-11-12 20:37:44,953 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 445 places, 917 transitions, 19756 flow [2024-11-12 20:37:45,857 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 443 places, 917 transitions, 19544 flow, removed 99 selfloop flow, removed 2 redundant places. [2024-11-12 20:37:45,876 INFO L231 Difference]: Finished difference. Result has 454 places, 775 transitions, 16614 flow [2024-11-12 20:37:45,877 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=14032, PETRI_DIFFERENCE_MINUEND_PLACES=426, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=687, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=175, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=474, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=16614, PETRI_PLACES=454, PETRI_TRANSITIONS=775} [2024-11-12 20:37:45,877 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, 407 predicate places. [2024-11-12 20:37:45,877 INFO L471 AbstractCegarLoop]: Abstraction has has 454 places, 775 transitions, 16614 flow [2024-11-12 20:37:45,878 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 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) [2024-11-12 20:37:45,878 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 20:37:45,878 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 20:37:45,878 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2024-11-12 20:37:45,878 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2024-11-12 20:37:45,879 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 20:37:45,879 INFO L85 PathProgramCache]: Analyzing trace with hash -1403731420, now seen corresponding path program 7 times [2024-11-12 20:37:45,879 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 20:37:45,879 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [528118012] [2024-11-12 20:37:45,879 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 20:37:45,880 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 20:37:45,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 20:37:46,155 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-12 20:37:46,155 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 20:37:46,155 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [528118012] [2024-11-12 20:37:46,156 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [528118012] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 20:37:46,156 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 20:37:46,156 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-12 20:37:46,156 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1320558266] [2024-11-12 20:37:46,156 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 20:37:46,157 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-12 20:37:46,158 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 20:37:46,158 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-12 20:37:46,158 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2024-11-12 20:37:46,175 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 47 [2024-11-12 20:37:46,176 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 454 places, 775 transitions, 16614 flow. Second operand has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 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) [2024-11-12 20:37:46,176 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 20:37:46,176 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 47 [2024-11-12 20:37:46,176 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 20:37:48,378 INFO L124 PetriNetUnfolderBase]: 2880/6183 cut-off events. [2024-11-12 20:37:48,378 INFO L125 PetriNetUnfolderBase]: For 238011/238106 co-relation queries the response was YES. [2024-11-12 20:37:48,452 INFO L83 FinitePrefix]: Finished finitePrefix Result has 54379 conditions, 6183 events. 2880/6183 cut-off events. For 238011/238106 co-relation queries the response was YES. Maximal size of possible extension queue 233. Compared 47812 event pairs, 1187 based on Foata normal form. 30/6169 useless extension candidates. Maximal degree in co-relation 54067. Up to 2713 conditions per place. [2024-11-12 20:37:48,485 INFO L140 encePairwiseOnDemand]: 32/47 looper letters, 650 selfloop transitions, 260 changer transitions 0/924 dead transitions. [2024-11-12 20:37:48,485 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 469 places, 924 transitions, 20745 flow [2024-11-12 20:37:48,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-12 20:37:48,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2024-11-12 20:37:48,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 379 transitions. [2024-11-12 20:37:48,486 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5039893617021277 [2024-11-12 20:37:48,486 INFO L175 Difference]: Start difference. First operand has 454 places, 775 transitions, 16614 flow. Second operand 16 states and 379 transitions. [2024-11-12 20:37:48,486 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 469 places, 924 transitions, 20745 flow [2024-11-12 20:37:49,947 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 465 places, 924 transitions, 20271 flow, removed 78 selfloop flow, removed 4 redundant places. [2024-11-12 20:37:49,964 INFO L231 Difference]: Finished difference. Result has 474 places, 803 transitions, 17716 flow [2024-11-12 20:37:49,965 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=16163, PETRI_DIFFERENCE_MINUEND_PLACES=450, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=775, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=236, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=529, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=17716, PETRI_PLACES=474, PETRI_TRANSITIONS=803} [2024-11-12 20:37:49,965 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, 427 predicate places. [2024-11-12 20:37:49,965 INFO L471 AbstractCegarLoop]: Abstraction has has 474 places, 803 transitions, 17716 flow [2024-11-12 20:37:49,965 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 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) [2024-11-12 20:37:49,965 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 20:37:49,966 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 20:37:49,966 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2024-11-12 20:37:49,966 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2024-11-12 20:37:49,967 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 20:37:49,967 INFO L85 PathProgramCache]: Analyzing trace with hash -213190240, now seen corresponding path program 5 times [2024-11-12 20:37:49,967 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 20:37:49,968 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [400410347] [2024-11-12 20:37:49,968 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 20:37:49,968 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 20:37:49,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 20:37:50,257 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-12 20:37:50,257 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 20:37:50,257 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [400410347] [2024-11-12 20:37:50,257 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [400410347] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 20:37:50,257 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 20:37:50,258 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-12 20:37:50,258 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1886022282] [2024-11-12 20:37:50,258 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 20:37:50,258 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-12 20:37:50,258 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 20:37:50,259 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-12 20:37:50,259 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2024-11-12 20:37:50,289 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 47 [2024-11-12 20:37:50,289 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 474 places, 803 transitions, 17716 flow. Second operand has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 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) [2024-11-12 20:37:50,289 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 20:37:50,289 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 47 [2024-11-12 20:37:50,289 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 20:37:53,691 INFO L124 PetriNetUnfolderBase]: 3141/6863 cut-off events. [2024-11-12 20:37:53,691 INFO L125 PetriNetUnfolderBase]: For 280620/280705 co-relation queries the response was YES. [2024-11-12 20:37:53,755 INFO L83 FinitePrefix]: Finished finitePrefix Result has 61194 conditions, 6863 events. 3141/6863 cut-off events. For 280620/280705 co-relation queries the response was YES. Maximal size of possible extension queue 266. Compared 54835 event pairs, 1133 based on Foata normal form. 43/6852 useless extension candidates. Maximal degree in co-relation 60872. Up to 2348 conditions per place. [2024-11-12 20:37:53,786 INFO L140 encePairwiseOnDemand]: 31/47 looper letters, 703 selfloop transitions, 292 changer transitions 0/1010 dead transitions. [2024-11-12 20:37:53,786 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 491 places, 1010 transitions, 23336 flow [2024-11-12 20:37:53,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-12 20:37:53,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2024-11-12 20:37:53,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 422 transitions. [2024-11-12 20:37:53,787 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4988179669030733 [2024-11-12 20:37:53,787 INFO L175 Difference]: Start difference. First operand has 474 places, 803 transitions, 17716 flow. Second operand 18 states and 422 transitions. [2024-11-12 20:37:53,787 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 491 places, 1010 transitions, 23336 flow [2024-11-12 20:37:55,267 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 488 places, 1010 transitions, 22768 flow, removed 167 selfloop flow, removed 3 redundant places. [2024-11-12 20:37:55,288 INFO L231 Difference]: Finished difference. Result has 500 places, 880 transitions, 19946 flow [2024-11-12 20:37:55,289 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=17254, PETRI_DIFFERENCE_MINUEND_PLACES=471, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=803, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=217, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=542, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=19946, PETRI_PLACES=500, PETRI_TRANSITIONS=880} [2024-11-12 20:37:55,291 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, 453 predicate places. [2024-11-12 20:37:55,291 INFO L471 AbstractCegarLoop]: Abstraction has has 500 places, 880 transitions, 19946 flow [2024-11-12 20:37:55,291 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 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) [2024-11-12 20:37:55,291 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 20:37:55,291 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 20:37:55,291 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2024-11-12 20:37:55,292 INFO L396 AbstractCegarLoop]: === Iteration 40 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2024-11-12 20:37:55,292 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 20:37:55,292 INFO L85 PathProgramCache]: Analyzing trace with hash -539460744, now seen corresponding path program 6 times [2024-11-12 20:37:55,293 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 20:37:55,293 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [572150006] [2024-11-12 20:37:55,293 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 20:37:55,293 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 20:37:55,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 20:37:55,627 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-12 20:37:55,627 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 20:37:55,629 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [572150006] [2024-11-12 20:37:55,629 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [572150006] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 20:37:55,629 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 20:37:55,629 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-12 20:37:55,629 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1375431967] [2024-11-12 20:37:55,630 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 20:37:55,630 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-12 20:37:55,630 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 20:37:55,630 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-12 20:37:55,631 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2024-11-12 20:37:55,646 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 47 [2024-11-12 20:37:55,647 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 500 places, 880 transitions, 19946 flow. Second operand has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 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) [2024-11-12 20:37:55,647 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 20:37:55,647 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 47 [2024-11-12 20:37:55,647 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 20:37:59,263 INFO L124 PetriNetUnfolderBase]: 3292/7160 cut-off events. [2024-11-12 20:37:59,263 INFO L125 PetriNetUnfolderBase]: For 326218/326342 co-relation queries the response was YES. [2024-11-12 20:37:59,338 INFO L83 FinitePrefix]: Finished finitePrefix Result has 66247 conditions, 7160 events. 3292/7160 cut-off events. For 326218/326342 co-relation queries the response was YES. Maximal size of possible extension queue 272. Compared 57503 event pairs, 1223 based on Foata normal form. 49/7156 useless extension candidates. Maximal degree in co-relation 65912. Up to 2734 conditions per place. [2024-11-12 20:37:59,373 INFO L140 encePairwiseOnDemand]: 31/47 looper letters, 743 selfloop transitions, 299 changer transitions 0/1057 dead transitions. [2024-11-12 20:37:59,373 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 518 places, 1057 transitions, 25164 flow [2024-11-12 20:37:59,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-12 20:37:59,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2024-11-12 20:37:59,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 445 transitions. [2024-11-12 20:37:59,374 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.49832026875699886 [2024-11-12 20:37:59,374 INFO L175 Difference]: Start difference. First operand has 500 places, 880 transitions, 19946 flow. Second operand 19 states and 445 transitions. [2024-11-12 20:37:59,375 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 518 places, 1057 transitions, 25164 flow [2024-11-12 20:38:01,016 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 516 places, 1057 transitions, 24839 flow, removed 110 selfloop flow, removed 2 redundant places. [2024-11-12 20:38:01,034 INFO L231 Difference]: Finished difference. Result has 527 places, 922 transitions, 21734 flow [2024-11-12 20:38:01,035 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=19634, PETRI_DIFFERENCE_MINUEND_PLACES=498, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=880, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=259, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=603, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=21734, PETRI_PLACES=527, PETRI_TRANSITIONS=922} [2024-11-12 20:38:01,036 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, 480 predicate places. [2024-11-12 20:38:01,036 INFO L471 AbstractCegarLoop]: Abstraction has has 527 places, 922 transitions, 21734 flow [2024-11-12 20:38:01,036 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 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) [2024-11-12 20:38:01,036 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 20:38:01,036 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 20:38:01,036 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2024-11-12 20:38:01,036 INFO L396 AbstractCegarLoop]: === Iteration 41 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2024-11-12 20:38:01,037 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 20:38:01,037 INFO L85 PathProgramCache]: Analyzing trace with hash 35745172, now seen corresponding path program 7 times [2024-11-12 20:38:01,037 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 20:38:01,037 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2139475633] [2024-11-12 20:38:01,037 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 20:38:01,037 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 20:38:01,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 20:38:01,364 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-12 20:38:01,365 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 20:38:01,366 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2139475633] [2024-11-12 20:38:01,366 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2139475633] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 20:38:01,366 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 20:38:01,366 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-12 20:38:01,366 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [542167477] [2024-11-12 20:38:01,366 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 20:38:01,367 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-12 20:38:01,367 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 20:38:01,367 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-12 20:38:01,367 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2024-11-12 20:38:01,390 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 47 [2024-11-12 20:38:01,391 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 527 places, 922 transitions, 21734 flow. Second operand has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 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) [2024-11-12 20:38:01,391 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 20:38:01,391 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 47 [2024-11-12 20:38:01,391 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 20:38:05,446 INFO L124 PetriNetUnfolderBase]: 3443/7457 cut-off events. [2024-11-12 20:38:05,447 INFO L125 PetriNetUnfolderBase]: For 383467/383589 co-relation queries the response was YES. [2024-11-12 20:38:05,533 INFO L83 FinitePrefix]: Finished finitePrefix Result has 71874 conditions, 7457 events. 3443/7457 cut-off events. For 383467/383589 co-relation queries the response was YES. Maximal size of possible extension queue 288. Compared 60700 event pairs, 1050 based on Foata normal form. 56/7457 useless extension candidates. Maximal degree in co-relation 71527. Up to 2943 conditions per place. [2024-11-12 20:38:05,571 INFO L140 encePairwiseOnDemand]: 31/47 looper letters, 735 selfloop transitions, 378 changer transitions 0/1128 dead transitions. [2024-11-12 20:38:05,571 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 545 places, 1128 transitions, 27879 flow [2024-11-12 20:38:05,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-12 20:38:05,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2024-11-12 20:38:05,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 436 transitions. [2024-11-12 20:38:05,572 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.48824188129899215 [2024-11-12 20:38:05,572 INFO L175 Difference]: Start difference. First operand has 527 places, 922 transitions, 21734 flow. Second operand 19 states and 436 transitions. [2024-11-12 20:38:05,573 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 545 places, 1128 transitions, 27879 flow