./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/no-overflow.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/06-symbeq_05-funloop_hard2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version fca748b1 Calling Ultimate with: /root/.sdkman/candidates/java/current/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 /storage/repos/ultimate/releaseScripts/default/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.dd.update-z3-fca748b-m [2024-11-20 21:53:35,494 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-20 21:53:35,553 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-20 21:53:35,557 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-20 21:53:35,558 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-20 21:53:35,585 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-20 21:53:35,586 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-20 21:53:35,586 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-20 21:53:35,587 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-20 21:53:35,587 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-20 21:53:35,588 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-20 21:53:35,589 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-20 21:53:35,589 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-20 21:53:35,589 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-20 21:53:35,590 INFO L153 SettingsManager]: * Use SBE=true [2024-11-20 21:53:35,591 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-20 21:53:35,591 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-20 21:53:35,591 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-20 21:53:35,592 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-20 21:53:35,592 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-20 21:53:35,592 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-20 21:53:35,595 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-20 21:53:35,595 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-20 21:53:35,595 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-20 21:53:35,595 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-20 21:53:35,596 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-20 21:53:35,596 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-20 21:53:35,596 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-20 21:53:35,596 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-20 21:53:35,596 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-20 21:53:35,597 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-20 21:53:35,597 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-20 21:53:35,597 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-20 21:53:35,597 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-20 21:53:35,597 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-20 21:53:35,598 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-20 21:53:35,598 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-20 21:53:35,600 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-20 21:53:35,601 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-20 21:53:35,601 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-20 21:53:35,601 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-20 21:53:35,601 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-20 21:53:35,602 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-20 21:53:35,602 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-20 21:53:35,602 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9e83a031749850377e0f1ecd2c361048b8f87f697f146600048034d31c93bd9a [2024-11-20 21:53:35,815 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-20 21:53:35,842 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-20 21:53:35,852 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-20 21:53:35,853 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-20 21:53:35,854 INFO L274 PluginConnector]: CDTParser initialized [2024-11-20 21:53:35,855 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/06-symbeq_05-funloop_hard2.i [2024-11-20 21:53:37,300 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-20 21:53:37,571 INFO L384 CDTParser]: Found 1 translation units. [2024-11-20 21:53:37,572 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/06-symbeq_05-funloop_hard2.i [2024-11-20 21:53:37,583 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0b377e84b/141eb30ebb604f36819ebe851b576e8e/FLAG9821e39fc [2024-11-20 21:53:37,596 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0b377e84b/141eb30ebb604f36819ebe851b576e8e [2024-11-20 21:53:37,598 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-20 21:53:37,600 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-20 21:53:37,601 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-20 21:53:37,601 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-20 21:53:37,607 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-20 21:53:37,608 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 09:53:37" (1/1) ... [2024-11-20 21:53:37,609 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1a7e0eff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:53:37, skipping insertion in model container [2024-11-20 21:53:37,609 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 09:53:37" (1/1) ... [2024-11-20 21:53:37,643 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-20 21:53:37,982 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 21:53:38,065 INFO L200 MainTranslator]: Completed pre-run [2024-11-20 21:53:38,141 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 21:53:38,193 INFO L204 MainTranslator]: Completed translation [2024-11-20 21:53:38,193 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:53:38 WrapperNode [2024-11-20 21:53:38,193 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-20 21:53:38,194 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-20 21:53:38,195 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-20 21:53:38,195 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-20 21:53:38,200 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:53:38" (1/1) ... [2024-11-20 21:53:38,216 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:53:38" (1/1) ... [2024-11-20 21:53:38,241 INFO L138 Inliner]: procedures = 263, calls = 74, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 155 [2024-11-20 21:53:38,241 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-20 21:53:38,242 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-20 21:53:38,242 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-20 21:53:38,242 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-20 21:53:38,250 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:53:38" (1/1) ... [2024-11-20 21:53:38,250 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:53:38" (1/1) ... [2024-11-20 21:53:38,258 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:53:38" (1/1) ... [2024-11-20 21:53:38,276 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]. [2024-11-20 21:53:38,276 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:53:38" (1/1) ... [2024-11-20 21:53:38,276 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:53:38" (1/1) ... [2024-11-20 21:53:38,285 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:53:38" (1/1) ... [2024-11-20 21:53:38,292 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:53:38" (1/1) ... [2024-11-20 21:53:38,293 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:53:38" (1/1) ... [2024-11-20 21:53:38,294 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:53:38" (1/1) ... [2024-11-20 21:53:38,295 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-20 21:53:38,296 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-20 21:53:38,296 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-20 21:53:38,296 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-20 21:53:38,304 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:53:38" (1/1) ... [2024-11-20 21:53:38,311 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-20 21:53:38,320 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 21:53:38,336 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) [2024-11-20 21:53:38,346 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 [2024-11-20 21:53:38,394 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-20 21:53:38,396 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-20 21:53:38,396 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-20 21:53:38,396 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-20 21:53:38,396 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-20 21:53:38,396 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-11-20 21:53:38,396 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-11-20 21:53:38,396 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-20 21:53:38,397 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-20 21:53:38,397 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-20 21:53:38,398 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-20 21:53:38,493 INFO L238 CfgBuilder]: Building ICFG [2024-11-20 21:53:38,495 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-20 21:53:38,705 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-20 21:53:38,706 INFO L287 CfgBuilder]: Performing block encoding [2024-11-20 21:53:38,964 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-20 21:53:38,964 INFO L316 CfgBuilder]: Removed 3 assume(true) statements. [2024-11-20 21:53:38,965 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 09:53:38 BoogieIcfgContainer [2024-11-20 21:53:38,965 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-20 21:53:38,967 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-20 21:53:38,968 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-20 21:53:38,970 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-20 21:53:38,971 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 09:53:37" (1/3) ... [2024-11-20 21:53:38,971 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3cd7a271 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 09:53:38, skipping insertion in model container [2024-11-20 21:53:38,971 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:53:38" (2/3) ... [2024-11-20 21:53:38,971 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3cd7a271 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 09:53:38, skipping insertion in model container [2024-11-20 21:53:38,971 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 09:53:38" (3/3) ... [2024-11-20 21:53:38,972 INFO L112 eAbstractionObserver]: Analyzing ICFG 06-symbeq_05-funloop_hard2.i [2024-11-20 21:53:38,985 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-20 21:53:38,986 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 12 error locations. [2024-11-20 21:53:38,986 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-20 21:53:39,020 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-20 21:53:39,044 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 48 places, 47 transitions, 98 flow [2024-11-20 21:53:39,062 INFO L124 PetriNetUnfolderBase]: 3/46 cut-off events. [2024-11-20 21:53:39,063 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-20 21:53:39,065 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. [2024-11-20 21:53:39,065 INFO L82 GeneralOperation]: Start removeDead. Operand has 48 places, 47 transitions, 98 flow [2024-11-20 21:53:39,067 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 47 places, 46 transitions, 95 flow [2024-11-20 21:53:39,074 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-20 21:53:39,079 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;@29a2dc8a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-20 21:53:39,079 INFO L334 AbstractCegarLoop]: Starting to check reachability of 17 error locations. [2024-11-20 21:53:39,082 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-20 21:53:39,082 INFO L124 PetriNetUnfolderBase]: 0/3 cut-off events. [2024-11-20 21:53:39,082 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-20 21:53:39,082 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 21:53:39,083 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2024-11-20 21:53:39,083 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)] === [2024-11-20 21:53:39,087 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 21:53:39,087 INFO L85 PathProgramCache]: Analyzing trace with hash 406437, now seen corresponding path program 1 times [2024-11-20 21:53:39,093 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 21:53:39,094 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [921496015] [2024-11-20 21:53:39,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 21:53:39,094 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 21:53:39,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 21:53:39,318 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 21:53:39,319 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 21:53:39,319 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [921496015] [2024-11-20 21:53:39,320 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [921496015] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 21:53:39,320 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 21:53:39,320 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-20 21:53:39,321 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1689709322] [2024-11-20 21:53:39,322 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 21:53:39,327 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-20 21:53:39,330 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 21:53:39,350 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-20 21:53:39,351 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-20 21:53:39,363 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 47 [2024-11-20 21:53:39,365 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) [2024-11-20 21:53:39,365 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 21:53:39,365 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 47 [2024-11-20 21:53:39,366 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 21:53:39,513 INFO L124 PetriNetUnfolderBase]: 128/386 cut-off events. [2024-11-20 21:53:39,514 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-20 21:53:39,515 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. [2024-11-20 21:53:39,518 INFO L140 encePairwiseOnDemand]: 41/47 looper letters, 29 selfloop transitions, 3 changer transitions 0/48 dead transitions. [2024-11-20 21:53:39,518 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 48 transitions, 163 flow [2024-11-20 21:53:39,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-20 21:53:39,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-20 21:53:39,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 103 transitions. [2024-11-20 21:53:39,533 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5478723404255319 [2024-11-20 21:53:39,534 INFO L175 Difference]: Start difference. First operand has 47 places, 46 transitions, 95 flow. Second operand 4 states and 103 transitions. [2024-11-20 21:53:39,535 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 48 transitions, 163 flow [2024-11-20 21:53:39,536 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 48 transitions, 162 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-20 21:53:39,540 INFO L231 Difference]: Finished difference. Result has 51 places, 48 transitions, 118 flow [2024-11-20 21:53:39,541 INFO L260 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} [2024-11-20 21:53:39,545 INFO L277 CegarLoopForPetriNet]: 47 programPoint places, 4 predicate places. [2024-11-20 21:53:39,545 INFO L471 AbstractCegarLoop]: Abstraction has has 51 places, 48 transitions, 118 flow [2024-11-20 21:53:39,545 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) [2024-11-20 21:53:39,546 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 21:53:39,546 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1] [2024-11-20 21:53:39,546 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-20 21:53:39,546 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)] === [2024-11-20 21:53:39,547 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 21:53:39,547 INFO L85 PathProgramCache]: Analyzing trace with hash -776355770, now seen corresponding path program 1 times [2024-11-20 21:53:39,547 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 21:53:39,547 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1154290383] [2024-11-20 21:53:39,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 21:53:39,547 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 21:53:39,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 21:53:39,643 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 21:53:39,644 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 21:53:39,644 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1154290383] [2024-11-20 21:53:39,644 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1154290383] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 21:53:39,644 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [971663754] [2024-11-20 21:53:39,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 21:53:39,644 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 21:53:39,644 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 21:53:39,646 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) [2024-11-20 21:53:39,648 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-20 21:53:39,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 21:53:39,702 INFO L255 TraceCheckSpWp]: Trace formula consists of 154 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-20 21:53:39,705 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 21:53:39,737 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 21:53:39,737 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-20 21:53:39,738 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [971663754] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 21:53:39,738 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-20 21:53:39,738 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2024-11-20 21:53:39,738 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [234521620] [2024-11-20 21:53:39,738 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 21:53:39,739 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-20 21:53:39,739 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 21:53:39,739 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-20 21:53:39,739 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-20 21:53:39,746 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 47 [2024-11-20 21:53:39,747 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) [2024-11-20 21:53:39,747 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 21:53:39,747 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 47 [2024-11-20 21:53:39,773 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 21:53:39,906 INFO L124 PetriNetUnfolderBase]: 128/385 cut-off events. [2024-11-20 21:53:39,906 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-11-20 21:53:39,908 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. [2024-11-20 21:53:39,909 INFO L140 encePairwiseOnDemand]: 42/47 looper letters, 25 selfloop transitions, 6 changer transitions 0/47 dead transitions. [2024-11-20 21:53:39,909 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 47 transitions, 176 flow [2024-11-20 21:53:39,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-20 21:53:39,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-20 21:53:39,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 134 transitions. [2024-11-20 21:53:39,911 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.475177304964539 [2024-11-20 21:53:39,912 INFO L175 Difference]: Start difference. First operand has 51 places, 48 transitions, 118 flow. Second operand 6 states and 134 transitions. [2024-11-20 21:53:39,912 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 47 transitions, 176 flow [2024-11-20 21:53:39,912 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 47 transitions, 174 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-20 21:53:39,913 INFO L231 Difference]: Finished difference. Result has 54 places, 47 transitions, 124 flow [2024-11-20 21:53:39,914 INFO L260 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} [2024-11-20 21:53:39,914 INFO L277 CegarLoopForPetriNet]: 47 programPoint places, 7 predicate places. [2024-11-20 21:53:39,914 INFO L471 AbstractCegarLoop]: Abstraction has has 54 places, 47 transitions, 124 flow [2024-11-20 21:53:39,915 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) [2024-11-20 21:53:39,915 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 21:53:39,915 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1] [2024-11-20 21:53:39,923 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-20 21:53:40,119 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 [2024-11-20 21:53:40,120 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)] === [2024-11-20 21:53:40,121 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 21:53:40,121 INFO L85 PathProgramCache]: Analyzing trace with hash 1702775290, now seen corresponding path program 1 times [2024-11-20 21:53:40,121 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 21:53:40,121 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [562605012] [2024-11-20 21:53:40,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 21:53:40,122 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 21:53:40,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 21:53:40,180 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-20 21:53:40,181 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 21:53:40,181 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [562605012] [2024-11-20 21:53:40,181 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [562605012] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 21:53:40,181 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 21:53:40,181 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-20 21:53:40,181 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [746447629] [2024-11-20 21:53:40,182 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 21:53:40,182 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 21:53:40,182 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 21:53:40,182 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 21:53:40,182 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 21:53:40,190 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 47 [2024-11-20 21:53:40,190 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) [2024-11-20 21:53:40,190 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 21:53:40,190 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 47 [2024-11-20 21:53:40,190 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 21:53:40,299 INFO L124 PetriNetUnfolderBase]: 128/384 cut-off events. [2024-11-20 21:53:40,299 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2024-11-20 21:53:40,300 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. [2024-11-20 21:53:40,301 INFO L140 encePairwiseOnDemand]: 44/47 looper letters, 26 selfloop transitions, 4 changer transitions 0/46 dead transitions. [2024-11-20 21:53:40,302 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 46 transitions, 180 flow [2024-11-20 21:53:40,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 21:53:40,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 21:53:40,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 80 transitions. [2024-11-20 21:53:40,303 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5673758865248227 [2024-11-20 21:53:40,303 INFO L175 Difference]: Start difference. First operand has 54 places, 47 transitions, 124 flow. Second operand 3 states and 80 transitions. [2024-11-20 21:53:40,303 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 46 transitions, 180 flow [2024-11-20 21:53:40,304 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 46 transitions, 158 flow, removed 3 selfloop flow, removed 6 redundant places. [2024-11-20 21:53:40,305 INFO L231 Difference]: Finished difference. Result has 49 places, 46 transitions, 106 flow [2024-11-20 21:53:40,305 INFO L260 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} [2024-11-20 21:53:40,306 INFO L277 CegarLoopForPetriNet]: 47 programPoint places, 2 predicate places. [2024-11-20 21:53:40,306 INFO L471 AbstractCegarLoop]: Abstraction has has 49 places, 46 transitions, 106 flow [2024-11-20 21:53:40,306 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) [2024-11-20 21:53:40,306 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 21:53:40,306 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 21:53:40,307 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-20 21:53:40,307 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)] === [2024-11-20 21:53:40,307 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 21:53:40,307 INFO L85 PathProgramCache]: Analyzing trace with hash -92986018, now seen corresponding path program 1 times [2024-11-20 21:53:40,307 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 21:53:40,308 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1980252145] [2024-11-20 21:53:40,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 21:53:40,308 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 21:53:40,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 21:53:40,362 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 21:53:40,362 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 21:53:40,363 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1980252145] [2024-11-20 21:53:40,363 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1980252145] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 21:53:40,363 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [415395703] [2024-11-20 21:53:40,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 21:53:40,363 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 21:53:40,363 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 21:53:40,365 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) [2024-11-20 21:53:40,366 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-20 21:53:40,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 21:53:40,425 INFO L255 TraceCheckSpWp]: Trace formula consists of 189 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-20 21:53:40,426 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 21:53:40,443 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 21:53:40,443 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-20 21:53:40,468 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 21:53:40,469 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [415395703] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-20 21:53:40,469 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-20 21:53:40,469 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 9 [2024-11-20 21:53:40,469 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1509154651] [2024-11-20 21:53:40,469 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-20 21:53:40,470 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-20 21:53:40,470 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 21:53:40,470 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-20 21:53:40,471 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-20 21:53:40,479 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 47 [2024-11-20 21:53:40,479 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) [2024-11-20 21:53:40,479 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 21:53:40,479 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 47 [2024-11-20 21:53:40,480 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 21:53:40,585 INFO L124 PetriNetUnfolderBase]: 128/388 cut-off events. [2024-11-20 21:53:40,585 INFO L125 PetriNetUnfolderBase]: For 9/9 co-relation queries the response was YES. [2024-11-20 21:53:40,586 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. [2024-11-20 21:53:40,587 INFO L140 encePairwiseOnDemand]: 43/47 looper letters, 26 selfloop transitions, 7 changer transitions 0/49 dead transitions. [2024-11-20 21:53:40,587 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 49 transitions, 187 flow [2024-11-20 21:53:40,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-20 21:53:40,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-20 21:53:40,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 154 transitions. [2024-11-20 21:53:40,589 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.46808510638297873 [2024-11-20 21:53:40,589 INFO L175 Difference]: Start difference. First operand has 49 places, 46 transitions, 106 flow. Second operand 7 states and 154 transitions. [2024-11-20 21:53:40,590 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 49 transitions, 187 flow [2024-11-20 21:53:40,590 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 49 transitions, 173 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-20 21:53:40,591 INFO L231 Difference]: Finished difference. Result has 55 places, 49 transitions, 132 flow [2024-11-20 21:53:40,591 INFO L260 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} [2024-11-20 21:53:40,592 INFO L277 CegarLoopForPetriNet]: 47 programPoint places, 8 predicate places. [2024-11-20 21:53:40,592 INFO L471 AbstractCegarLoop]: Abstraction has has 55 places, 49 transitions, 132 flow [2024-11-20 21:53:40,592 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) [2024-11-20 21:53:40,592 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 21:53:40,593 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 21:53:40,599 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-20 21:53:40,793 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 [2024-11-20 21:53:40,793 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)] === [2024-11-20 21:53:40,794 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 21:53:40,794 INFO L85 PathProgramCache]: Analyzing trace with hash 1115452862, now seen corresponding path program 2 times [2024-11-20 21:53:40,794 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 21:53:40,794 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2053885294] [2024-11-20 21:53:40,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 21:53:40,794 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 21:53:40,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 21:53:40,926 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 21:53:40,927 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 21:53:40,927 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2053885294] [2024-11-20 21:53:40,927 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2053885294] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 21:53:40,927 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1600986081] [2024-11-20 21:53:40,927 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-20 21:53:40,927 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 21:53:40,928 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 21:53:40,929 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) [2024-11-20 21:53:40,930 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-20 21:53:40,982 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-20 21:53:40,982 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-20 21:53:40,986 INFO L255 TraceCheckSpWp]: Trace formula consists of 178 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-20 21:53:40,987 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 21:53:41,190 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 [2024-11-20 21:53:41,202 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-20 21:53:41,202 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-20 21:53:41,202 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1600986081] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 21:53:41,202 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-20 21:53:41,203 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8] total 12 [2024-11-20 21:53:41,203 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1269691307] [2024-11-20 21:53:41,203 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 21:53:41,203 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-20 21:53:41,203 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 21:53:41,204 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-20 21:53:41,205 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2024-11-20 21:53:41,212 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 47 [2024-11-20 21:53:41,212 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) [2024-11-20 21:53:41,212 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 21:53:41,212 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 47 [2024-11-20 21:53:41,212 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 21:53:41,503 INFO L124 PetriNetUnfolderBase]: 357/881 cut-off events. [2024-11-20 21:53:41,504 INFO L125 PetriNetUnfolderBase]: For 15/15 co-relation queries the response was YES. [2024-11-20 21:53:41,505 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. [2024-11-20 21:53:41,507 INFO L140 encePairwiseOnDemand]: 36/47 looper letters, 106 selfloop transitions, 16 changer transitions 0/136 dead transitions. [2024-11-20 21:53:41,507 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 136 transitions, 550 flow [2024-11-20 21:53:41,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-20 21:53:41,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-20 21:53:41,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 256 transitions. [2024-11-20 21:53:41,510 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6808510638297872 [2024-11-20 21:53:41,510 INFO L175 Difference]: Start difference. First operand has 55 places, 49 transitions, 132 flow. Second operand 8 states and 256 transitions. [2024-11-20 21:53:41,510 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 136 transitions, 550 flow [2024-11-20 21:53:41,511 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 136 transitions, 546 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-20 21:53:41,512 INFO L231 Difference]: Finished difference. Result has 66 places, 65 transitions, 248 flow [2024-11-20 21:53:41,513 INFO L260 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} [2024-11-20 21:53:41,513 INFO L277 CegarLoopForPetriNet]: 47 programPoint places, 19 predicate places. [2024-11-20 21:53:41,513 INFO L471 AbstractCegarLoop]: Abstraction has has 66 places, 65 transitions, 248 flow [2024-11-20 21:53:41,514 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) [2024-11-20 21:53:41,514 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 21:53:41,514 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 21:53:41,525 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-20 21:53:41,714 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 [2024-11-20 21:53:41,715 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)] === [2024-11-20 21:53:41,716 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 21:53:41,716 INFO L85 PathProgramCache]: Analyzing trace with hash 1082013421, now seen corresponding path program 1 times [2024-11-20 21:53:41,716 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 21:53:41,716 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [87026587] [2024-11-20 21:53:41,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 21:53:41,716 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 21:53:41,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 21:53:41,743 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-20 21:53:41,743 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 21:53:41,743 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [87026587] [2024-11-20 21:53:41,743 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [87026587] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 21:53:41,744 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 21:53:41,744 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-20 21:53:41,744 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [363181394] [2024-11-20 21:53:41,744 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 21:53:41,744 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 21:53:41,744 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 21:53:41,745 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 21:53:41,745 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 21:53:41,745 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 47 [2024-11-20 21:53:41,745 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) [2024-11-20 21:53:41,745 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 21:53:41,745 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 47 [2024-11-20 21:53:41,746 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 21:53:41,829 INFO L124 PetriNetUnfolderBase]: 270/759 cut-off events. [2024-11-20 21:53:41,829 INFO L125 PetriNetUnfolderBase]: For 331/359 co-relation queries the response was YES. [2024-11-20 21:53:41,830 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. [2024-11-20 21:53:41,832 INFO L140 encePairwiseOnDemand]: 44/47 looper letters, 70 selfloop transitions, 2 changer transitions 0/90 dead transitions. [2024-11-20 21:53:41,833 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 90 transitions, 492 flow [2024-11-20 21:53:41,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 21:53:41,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 21:53:41,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 102 transitions. [2024-11-20 21:53:41,833 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.723404255319149 [2024-11-20 21:53:41,834 INFO L175 Difference]: Start difference. First operand has 66 places, 65 transitions, 248 flow. Second operand 3 states and 102 transitions. [2024-11-20 21:53:41,834 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 90 transitions, 492 flow [2024-11-20 21:53:41,836 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 90 transitions, 492 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-20 21:53:41,838 INFO L231 Difference]: Finished difference. Result has 69 places, 66 transitions, 260 flow [2024-11-20 21:53:41,838 INFO L260 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} [2024-11-20 21:53:41,838 INFO L277 CegarLoopForPetriNet]: 47 programPoint places, 22 predicate places. [2024-11-20 21:53:41,839 INFO L471 AbstractCegarLoop]: Abstraction has has 69 places, 66 transitions, 260 flow [2024-11-20 21:53:41,839 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) [2024-11-20 21:53:41,839 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 21:53:41,839 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 21:53:41,839 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-20 21:53:41,839 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)] === [2024-11-20 21:53:41,839 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 21:53:41,840 INFO L85 PathProgramCache]: Analyzing trace with hash 1081981441, now seen corresponding path program 1 times [2024-11-20 21:53:41,840 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 21:53:41,840 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1025767335] [2024-11-20 21:53:41,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 21:53:41,840 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 21:53:41,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 21:53:41,930 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 21:53:41,930 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 21:53:41,930 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1025767335] [2024-11-20 21:53:41,930 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1025767335] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 21:53:41,930 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [468170280] [2024-11-20 21:53:41,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 21:53:41,931 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 21:53:41,931 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 21:53:41,932 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) [2024-11-20 21:53:41,937 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-20 21:53:41,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 21:53:41,988 INFO L255 TraceCheckSpWp]: Trace formula consists of 207 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-20 21:53:41,989 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 21:53:42,011 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 21:53:42,011 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-20 21:53:42,090 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 21:53:42,091 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [468170280] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-20 21:53:42,091 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-20 21:53:42,091 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 17 [2024-11-20 21:53:42,091 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [519244724] [2024-11-20 21:53:42,091 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-20 21:53:42,091 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-20 21:53:42,092 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 21:53:42,092 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-20 21:53:42,092 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2024-11-20 21:53:42,104 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 47 [2024-11-20 21:53:42,104 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) [2024-11-20 21:53:42,105 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 21:53:42,105 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 47 [2024-11-20 21:53:42,105 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 21:53:42,257 INFO L124 PetriNetUnfolderBase]: 270/781 cut-off events. [2024-11-20 21:53:42,258 INFO L125 PetriNetUnfolderBase]: For 427/449 co-relation queries the response was YES. [2024-11-20 21:53:42,259 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. [2024-11-20 21:53:42,262 INFO L140 encePairwiseOnDemand]: 43/47 looper letters, 41 selfloop transitions, 15 changer transitions 0/74 dead transitions. [2024-11-20 21:53:42,262 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 83 places, 74 transitions, 420 flow [2024-11-20 21:53:42,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-20 21:53:42,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-11-20 21:53:42,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 300 transitions. [2024-11-20 21:53:42,263 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.425531914893617 [2024-11-20 21:53:42,263 INFO L175 Difference]: Start difference. First operand has 69 places, 66 transitions, 260 flow. Second operand 15 states and 300 transitions. [2024-11-20 21:53:42,263 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 83 places, 74 transitions, 420 flow [2024-11-20 21:53:42,266 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 82 places, 74 transitions, 418 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-20 21:53:42,267 INFO L231 Difference]: Finished difference. Result has 86 places, 74 transitions, 355 flow [2024-11-20 21:53:42,267 INFO L260 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} [2024-11-20 21:53:42,268 INFO L277 CegarLoopForPetriNet]: 47 programPoint places, 39 predicate places. [2024-11-20 21:53:42,268 INFO L471 AbstractCegarLoop]: Abstraction has has 86 places, 74 transitions, 355 flow [2024-11-20 21:53:42,268 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) [2024-11-20 21:53:42,268 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 21:53:42,268 INFO L204 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 21:53:42,278 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-20 21:53:42,472 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 [2024-11-20 21:53:42,473 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)] === [2024-11-20 21:53:42,473 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 21:53:42,473 INFO L85 PathProgramCache]: Analyzing trace with hash -925826367, now seen corresponding path program 2 times [2024-11-20 21:53:42,474 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 21:53:42,474 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1683538652] [2024-11-20 21:53:42,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 21:53:42,474 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 21:53:42,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 21:53:42,649 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 21:53:42,650 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 21:53:42,650 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1683538652] [2024-11-20 21:53:42,650 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1683538652] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 21:53:42,650 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1163567132] [2024-11-20 21:53:42,650 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-20 21:53:42,651 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 21:53:42,651 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 21:53:42,652 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) [2024-11-20 21:53:42,656 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-20 21:53:42,712 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-20 21:53:42,712 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-20 21:53:42,713 INFO L255 TraceCheckSpWp]: Trace formula consists of 174 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-20 21:53:42,714 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 21:53:42,925 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 [2024-11-20 21:53:42,939 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-20 21:53:42,939 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-20 21:53:42,939 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1163567132] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 21:53:42,939 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-20 21:53:42,939 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [16] total 20 [2024-11-20 21:53:42,940 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [916892262] [2024-11-20 21:53:42,940 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 21:53:42,940 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-20 21:53:42,940 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 21:53:42,940 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-20 21:53:42,941 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=89, Invalid=331, Unknown=0, NotChecked=0, Total=420 [2024-11-20 21:53:42,946 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 47 [2024-11-20 21:53:42,946 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) [2024-11-20 21:53:42,947 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 21:53:42,947 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 47 [2024-11-20 21:53:42,947 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 21:53:43,204 INFO L124 PetriNetUnfolderBase]: 461/1208 cut-off events. [2024-11-20 21:53:43,205 INFO L125 PetriNetUnfolderBase]: For 629/674 co-relation queries the response was YES. [2024-11-20 21:53:43,206 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. [2024-11-20 21:53:43,210 INFO L140 encePairwiseOnDemand]: 37/47 looper letters, 111 selfloop transitions, 32 changer transitions 0/159 dead transitions. [2024-11-20 21:53:43,210 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 93 places, 159 transitions, 986 flow [2024-11-20 21:53:43,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-20 21:53:43,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-20 21:53:43,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 229 transitions. [2024-11-20 21:53:43,211 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6090425531914894 [2024-11-20 21:53:43,211 INFO L175 Difference]: Start difference. First operand has 86 places, 74 transitions, 355 flow. Second operand 8 states and 229 transitions. [2024-11-20 21:53:43,211 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 93 places, 159 transitions, 986 flow [2024-11-20 21:53:43,214 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 89 places, 159 transitions, 976 flow, removed 1 selfloop flow, removed 4 redundant places. [2024-11-20 21:53:43,215 INFO L231 Difference]: Finished difference. Result has 95 places, 105 transitions, 651 flow [2024-11-20 21:53:43,216 INFO L260 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} [2024-11-20 21:53:43,216 INFO L277 CegarLoopForPetriNet]: 47 programPoint places, 48 predicate places. [2024-11-20 21:53:43,216 INFO L471 AbstractCegarLoop]: Abstraction has has 95 places, 105 transitions, 651 flow [2024-11-20 21:53:43,216 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) [2024-11-20 21:53:43,217 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 21:53:43,217 INFO L204 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 21:53:43,226 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-20 21:53:43,420 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 [2024-11-20 21:53:43,421 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)] === [2024-11-20 21:53:43,421 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 21:53:43,421 INFO L85 PathProgramCache]: Analyzing trace with hash 1364154082, now seen corresponding path program 1 times [2024-11-20 21:53:43,422 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 21:53:43,422 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [746321679] [2024-11-20 21:53:43,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 21:53:43,422 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 21:53:43,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 21:53:43,593 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 21:53:43,594 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 21:53:43,594 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [746321679] [2024-11-20 21:53:43,594 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [746321679] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 21:53:43,594 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1078319087] [2024-11-20 21:53:43,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 21:53:43,594 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 21:53:43,594 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 21:53:43,597 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) [2024-11-20 21:53:43,602 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-20 21:53:43,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 21:53:43,696 INFO L255 TraceCheckSpWp]: Trace formula consists of 252 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-20 21:53:43,698 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 21:53:43,752 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 21:53:43,752 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-20 21:53:43,894 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 21:53:43,894 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1078319087] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-20 21:53:43,894 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-20 21:53:43,894 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16, 16] total 22 [2024-11-20 21:53:43,894 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1641790736] [2024-11-20 21:53:43,895 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-20 21:53:43,895 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-20 21:53:43,895 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 21:53:43,896 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-20 21:53:43,896 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2024-11-20 21:53:43,912 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 47 [2024-11-20 21:53:43,913 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) [2024-11-20 21:53:43,913 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 21:53:43,913 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 47 [2024-11-20 21:53:43,914 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 21:53:44,180 INFO L124 PetriNetUnfolderBase]: 379/1081 cut-off events. [2024-11-20 21:53:44,180 INFO L125 PetriNetUnfolderBase]: For 1521/1599 co-relation queries the response was YES. [2024-11-20 21:53:44,182 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. [2024-11-20 21:53:44,186 INFO L140 encePairwiseOnDemand]: 43/47 looper letters, 70 selfloop transitions, 21 changer transitions 0/111 dead transitions. [2024-11-20 21:53:44,186 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 115 places, 111 transitions, 887 flow [2024-11-20 21:53:44,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-20 21:53:44,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2024-11-20 21:53:44,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 407 transitions. [2024-11-20 21:53:44,187 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.41236068895643363 [2024-11-20 21:53:44,188 INFO L175 Difference]: Start difference. First operand has 95 places, 105 transitions, 651 flow. Second operand 21 states and 407 transitions. [2024-11-20 21:53:44,188 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 115 places, 111 transitions, 887 flow [2024-11-20 21:53:44,191 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 115 places, 111 transitions, 887 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-20 21:53:44,193 INFO L231 Difference]: Finished difference. Result has 118 places, 111 transitions, 762 flow [2024-11-20 21:53:44,193 INFO L260 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} [2024-11-20 21:53:44,193 INFO L277 CegarLoopForPetriNet]: 47 programPoint places, 71 predicate places. [2024-11-20 21:53:44,194 INFO L471 AbstractCegarLoop]: Abstraction has has 118 places, 111 transitions, 762 flow [2024-11-20 21:53:44,194 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) [2024-11-20 21:53:44,194 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 21:53:44,194 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 21:53:44,201 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-20 21:53:44,398 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 [2024-11-20 21:53:44,399 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)] === [2024-11-20 21:53:44,399 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 21:53:44,399 INFO L85 PathProgramCache]: Analyzing trace with hash -732466678, now seen corresponding path program 1 times [2024-11-20 21:53:44,399 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 21:53:44,400 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1754978085] [2024-11-20 21:53:44,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 21:53:44,400 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 21:53:44,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 21:53:44,622 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-20 21:53:44,623 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 21:53:44,623 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1754978085] [2024-11-20 21:53:44,623 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1754978085] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 21:53:44,623 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 21:53:44,623 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-20 21:53:44,623 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1357029823] [2024-11-20 21:53:44,623 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 21:53:44,624 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-20 21:53:44,624 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 21:53:44,624 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-20 21:53:44,624 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-20 21:53:44,630 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 47 [2024-11-20 21:53:44,630 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) [2024-11-20 21:53:44,630 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 21:53:44,630 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 47 [2024-11-20 21:53:44,630 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 21:53:44,890 INFO L124 PetriNetUnfolderBase]: 455/1232 cut-off events. [2024-11-20 21:53:44,890 INFO L125 PetriNetUnfolderBase]: For 1814/1850 co-relation queries the response was YES. [2024-11-20 21:53:44,893 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. [2024-11-20 21:53:44,897 INFO L140 encePairwiseOnDemand]: 40/47 looper letters, 106 selfloop transitions, 18 changer transitions 0/140 dead transitions. [2024-11-20 21:53:44,897 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 124 places, 140 transitions, 1136 flow [2024-11-20 21:53:44,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-20 21:53:44,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-20 21:53:44,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 190 transitions. [2024-11-20 21:53:44,898 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5775075987841946 [2024-11-20 21:53:44,898 INFO L175 Difference]: Start difference. First operand has 118 places, 111 transitions, 762 flow. Second operand 7 states and 190 transitions. [2024-11-20 21:53:44,898 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 124 places, 140 transitions, 1136 flow [2024-11-20 21:53:44,903 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 110 places, 140 transitions, 1075 flow, removed 1 selfloop flow, removed 14 redundant places. [2024-11-20 21:53:44,904 INFO L231 Difference]: Finished difference. Result has 110 places, 110 transitions, 731 flow [2024-11-20 21:53:44,904 INFO L260 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} [2024-11-20 21:53:44,905 INFO L277 CegarLoopForPetriNet]: 47 programPoint places, 63 predicate places. [2024-11-20 21:53:44,905 INFO L471 AbstractCegarLoop]: Abstraction has has 110 places, 110 transitions, 731 flow [2024-11-20 21:53:44,905 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) [2024-11-20 21:53:44,905 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 21:53:44,905 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 21:53:44,906 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-20 21:53:44,906 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)] === [2024-11-20 21:53:44,906 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 21:53:44,906 INFO L85 PathProgramCache]: Analyzing trace with hash -1770080767, now seen corresponding path program 2 times [2024-11-20 21:53:44,906 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 21:53:44,906 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2079623656] [2024-11-20 21:53:44,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 21:53:44,906 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 21:53:44,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 21:53:45,060 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-20 21:53:45,060 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 21:53:45,060 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2079623656] [2024-11-20 21:53:45,060 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2079623656] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 21:53:45,060 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 21:53:45,060 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-20 21:53:45,060 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [407017634] [2024-11-20 21:53:45,060 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 21:53:45,061 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-20 21:53:45,061 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 21:53:45,061 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-20 21:53:45,061 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-20 21:53:45,068 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 47 [2024-11-20 21:53:45,069 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) [2024-11-20 21:53:45,069 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 21:53:45,069 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 47 [2024-11-20 21:53:45,069 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 21:53:45,291 INFO L124 PetriNetUnfolderBase]: 440/1192 cut-off events. [2024-11-20 21:53:45,292 INFO L125 PetriNetUnfolderBase]: For 1600/1606 co-relation queries the response was YES. [2024-11-20 21:53:45,294 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. [2024-11-20 21:53:45,297 INFO L140 encePairwiseOnDemand]: 40/47 looper letters, 101 selfloop transitions, 18 changer transitions 0/134 dead transitions. [2024-11-20 21:53:45,297 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 116 places, 134 transitions, 1092 flow [2024-11-20 21:53:45,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-20 21:53:45,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-20 21:53:45,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 185 transitions. [2024-11-20 21:53:45,299 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5623100303951368 [2024-11-20 21:53:45,299 INFO L175 Difference]: Start difference. First operand has 110 places, 110 transitions, 731 flow. Second operand 7 states and 185 transitions. [2024-11-20 21:53:45,299 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 116 places, 134 transitions, 1092 flow [2024-11-20 21:53:45,302 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 113 places, 134 transitions, 1050 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-20 21:53:45,304 INFO L231 Difference]: Finished difference. Result has 113 places, 109 transitions, 722 flow [2024-11-20 21:53:45,304 INFO L260 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} [2024-11-20 21:53:45,304 INFO L277 CegarLoopForPetriNet]: 47 programPoint places, 66 predicate places. [2024-11-20 21:53:45,305 INFO L471 AbstractCegarLoop]: Abstraction has has 113 places, 109 transitions, 722 flow [2024-11-20 21:53:45,305 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) [2024-11-20 21:53:45,305 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 21:53:45,305 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 21:53:45,305 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-20 21:53:45,305 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)] === [2024-11-20 21:53:45,305 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 21:53:45,306 INFO L85 PathProgramCache]: Analyzing trace with hash 1814449730, now seen corresponding path program 1 times [2024-11-20 21:53:45,306 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 21:53:45,306 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [134666800] [2024-11-20 21:53:45,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 21:53:45,306 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 21:53:45,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 21:53:45,352 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-20 21:53:45,352 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 21:53:45,352 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [134666800] [2024-11-20 21:53:45,352 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [134666800] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 21:53:45,352 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 21:53:45,352 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-20 21:53:45,352 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2141556535] [2024-11-20 21:53:45,353 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 21:53:45,353 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-20 21:53:45,353 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 21:53:45,353 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-20 21:53:45,353 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-20 21:53:45,357 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 47 [2024-11-20 21:53:45,357 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) [2024-11-20 21:53:45,357 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 21:53:45,357 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 47 [2024-11-20 21:53:45,357 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 21:53:45,532 INFO L124 PetriNetUnfolderBase]: 512/1340 cut-off events. [2024-11-20 21:53:45,532 INFO L125 PetriNetUnfolderBase]: For 1414/1423 co-relation queries the response was YES. [2024-11-20 21:53:45,536 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. [2024-11-20 21:53:45,540 INFO L140 encePairwiseOnDemand]: 41/47 looper letters, 132 selfloop transitions, 6 changer transitions 0/154 dead transitions. [2024-11-20 21:53:45,540 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 116 places, 154 transitions, 1187 flow [2024-11-20 21:53:45,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-20 21:53:45,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-20 21:53:45,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 136 transitions. [2024-11-20 21:53:45,541 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.723404255319149 [2024-11-20 21:53:45,541 INFO L175 Difference]: Start difference. First operand has 113 places, 109 transitions, 722 flow. Second operand 4 states and 136 transitions. [2024-11-20 21:53:45,541 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 116 places, 154 transitions, 1187 flow [2024-11-20 21:53:45,545 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 114 places, 154 transitions, 1166 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-20 21:53:45,546 INFO L231 Difference]: Finished difference. Result has 116 places, 111 transitions, 740 flow [2024-11-20 21:53:45,546 INFO L260 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} [2024-11-20 21:53:45,547 INFO L277 CegarLoopForPetriNet]: 47 programPoint places, 69 predicate places. [2024-11-20 21:53:45,547 INFO L471 AbstractCegarLoop]: Abstraction has has 116 places, 111 transitions, 740 flow [2024-11-20 21:53:45,547 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) [2024-11-20 21:53:45,547 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 21:53:45,547 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 21:53:45,547 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-20 21:53:45,547 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)] === [2024-11-20 21:53:45,548 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 21:53:45,548 INFO L85 PathProgramCache]: Analyzing trace with hash 1132727483, now seen corresponding path program 1 times [2024-11-20 21:53:45,548 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 21:53:45,548 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1230955699] [2024-11-20 21:53:45,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 21:53:45,548 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 21:53:45,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 21:53:45,631 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-20 21:53:45,635 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 21:53:45,635 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1230955699] [2024-11-20 21:53:45,635 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1230955699] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 21:53:45,635 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 21:53:45,635 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-20 21:53:45,635 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1611208633] [2024-11-20 21:53:45,636 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 21:53:45,636 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-20 21:53:45,636 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 21:53:45,636 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-20 21:53:45,636 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-20 21:53:45,645 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 47 [2024-11-20 21:53:45,645 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) [2024-11-20 21:53:45,645 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 21:53:45,645 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 47 [2024-11-20 21:53:45,645 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 21:53:45,875 INFO L124 PetriNetUnfolderBase]: 502/1302 cut-off events. [2024-11-20 21:53:45,875 INFO L125 PetriNetUnfolderBase]: For 1823/1840 co-relation queries the response was YES. [2024-11-20 21:53:45,878 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. [2024-11-20 21:53:45,882 INFO L140 encePairwiseOnDemand]: 42/47 looper letters, 125 selfloop transitions, 6 changer transitions 0/147 dead transitions. [2024-11-20 21:53:45,882 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 119 places, 147 transitions, 1202 flow [2024-11-20 21:53:45,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-20 21:53:45,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-20 21:53:45,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 125 transitions. [2024-11-20 21:53:45,883 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6648936170212766 [2024-11-20 21:53:45,883 INFO L175 Difference]: Start difference. First operand has 116 places, 111 transitions, 740 flow. Second operand 4 states and 125 transitions. [2024-11-20 21:53:45,883 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 119 places, 147 transitions, 1202 flow [2024-11-20 21:53:45,887 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 118 places, 147 transitions, 1192 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-20 21:53:45,888 INFO L231 Difference]: Finished difference. Result has 120 places, 112 transitions, 766 flow [2024-11-20 21:53:45,888 INFO L260 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} [2024-11-20 21:53:45,889 INFO L277 CegarLoopForPetriNet]: 47 programPoint places, 73 predicate places. [2024-11-20 21:53:45,889 INFO L471 AbstractCegarLoop]: Abstraction has has 120 places, 112 transitions, 766 flow [2024-11-20 21:53:45,889 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) [2024-11-20 21:53:45,889 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 21:53:45,889 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 21:53:45,889 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-20 21:53:45,889 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)] === [2024-11-20 21:53:45,890 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 21:53:45,890 INFO L85 PathProgramCache]: Analyzing trace with hash 543010746, now seen corresponding path program 1 times [2024-11-20 21:53:45,890 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 21:53:45,890 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [986415147] [2024-11-20 21:53:45,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 21:53:45,890 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 21:53:45,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 21:53:46,262 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-20 21:53:46,262 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 21:53:46,262 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [986415147] [2024-11-20 21:53:46,262 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [986415147] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 21:53:46,263 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 21:53:46,263 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-20 21:53:46,263 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [428257446] [2024-11-20 21:53:46,263 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 21:53:46,263 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-20 21:53:46,263 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 21:53:46,264 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-20 21:53:46,264 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2024-11-20 21:53:46,264 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 47 [2024-11-20 21:53:46,274 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) [2024-11-20 21:53:46,274 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 21:53:46,274 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 47 [2024-11-20 21:53:46,274 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 21:53:46,667 INFO L124 PetriNetUnfolderBase]: 540/1489 cut-off events. [2024-11-20 21:53:46,667 INFO L125 PetriNetUnfolderBase]: For 2234/2247 co-relation queries the response was YES. [2024-11-20 21:53:46,672 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. [2024-11-20 21:53:46,677 INFO L140 encePairwiseOnDemand]: 36/47 looper letters, 171 selfloop transitions, 18 changer transitions 0/207 dead transitions. [2024-11-20 21:53:46,677 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 127 places, 207 transitions, 1690 flow [2024-11-20 21:53:46,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-20 21:53:46,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-20 21:53:46,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 240 transitions. [2024-11-20 21:53:46,678 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6382978723404256 [2024-11-20 21:53:46,678 INFO L175 Difference]: Start difference. First operand has 120 places, 112 transitions, 766 flow. Second operand 8 states and 240 transitions. [2024-11-20 21:53:46,678 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 127 places, 207 transitions, 1690 flow [2024-11-20 21:53:46,683 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 125 places, 207 transitions, 1658 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-20 21:53:46,685 INFO L231 Difference]: Finished difference. Result has 130 places, 123 transitions, 890 flow [2024-11-20 21:53:46,685 INFO L260 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} [2024-11-20 21:53:46,686 INFO L277 CegarLoopForPetriNet]: 47 programPoint places, 83 predicate places. [2024-11-20 21:53:46,686 INFO L471 AbstractCegarLoop]: Abstraction has has 130 places, 123 transitions, 890 flow [2024-11-20 21:53:46,686 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) [2024-11-20 21:53:46,686 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 21:53:46,686 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 21:53:46,686 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-20 21:53:46,687 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)] === [2024-11-20 21:53:46,687 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 21:53:46,687 INFO L85 PathProgramCache]: Analyzing trace with hash 1753571206, now seen corresponding path program 1 times [2024-11-20 21:53:46,687 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 21:53:46,687 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1376798004] [2024-11-20 21:53:46,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 21:53:46,687 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 21:53:46,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 21:53:46,971 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-20 21:53:46,971 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 21:53:46,971 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1376798004] [2024-11-20 21:53:46,971 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1376798004] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 21:53:46,971 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 21:53:46,971 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-20 21:53:46,972 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [32180568] [2024-11-20 21:53:46,972 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 21:53:46,972 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-20 21:53:46,972 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 21:53:46,972 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-20 21:53:46,972 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2024-11-20 21:53:46,973 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 47 [2024-11-20 21:53:46,973 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) [2024-11-20 21:53:46,973 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 21:53:46,973 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 47 [2024-11-20 21:53:46,973 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 21:53:47,273 INFO L124 PetriNetUnfolderBase]: 586/1597 cut-off events. [2024-11-20 21:53:47,273 INFO L125 PetriNetUnfolderBase]: For 3215/3239 co-relation queries the response was YES. [2024-11-20 21:53:47,281 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. [2024-11-20 21:53:47,296 INFO L140 encePairwiseOnDemand]: 36/47 looper letters, 172 selfloop transitions, 24 changer transitions 0/214 dead transitions. [2024-11-20 21:53:47,299 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 137 places, 214 transitions, 1945 flow [2024-11-20 21:53:47,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-20 21:53:47,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-20 21:53:47,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 225 transitions. [2024-11-20 21:53:47,300 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.598404255319149 [2024-11-20 21:53:47,300 INFO L175 Difference]: Start difference. First operand has 130 places, 123 transitions, 890 flow. Second operand 8 states and 225 transitions. [2024-11-20 21:53:47,300 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 137 places, 214 transitions, 1945 flow [2024-11-20 21:53:47,310 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 135 places, 214 transitions, 1928 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-20 21:53:47,312 INFO L231 Difference]: Finished difference. Result has 140 places, 136 transitions, 1079 flow [2024-11-20 21:53:47,313 INFO L260 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} [2024-11-20 21:53:47,313 INFO L277 CegarLoopForPetriNet]: 47 programPoint places, 93 predicate places. [2024-11-20 21:53:47,314 INFO L471 AbstractCegarLoop]: Abstraction has has 140 places, 136 transitions, 1079 flow [2024-11-20 21:53:47,314 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) [2024-11-20 21:53:47,314 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 21:53:47,314 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 21:53:47,314 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-20 21:53:47,314 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)] === [2024-11-20 21:53:47,315 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 21:53:47,315 INFO L85 PathProgramCache]: Analyzing trace with hash -1985880402, now seen corresponding path program 2 times [2024-11-20 21:53:47,315 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 21:53:47,315 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1285249146] [2024-11-20 21:53:47,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 21:53:47,315 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 21:53:47,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 21:53:47,621 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-20 21:53:47,622 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 21:53:47,622 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1285249146] [2024-11-20 21:53:47,622 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1285249146] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 21:53:47,622 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 21:53:47,622 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-20 21:53:47,622 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [845283640] [2024-11-20 21:53:47,622 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 21:53:47,623 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-20 21:53:47,623 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 21:53:47,623 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-20 21:53:47,623 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2024-11-20 21:53:47,623 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 47 [2024-11-20 21:53:47,624 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) [2024-11-20 21:53:47,624 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 21:53:47,624 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 47 [2024-11-20 21:53:47,624 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 21:53:47,958 INFO L124 PetriNetUnfolderBase]: 635/1721 cut-off events. [2024-11-20 21:53:47,958 INFO L125 PetriNetUnfolderBase]: For 5137/5153 co-relation queries the response was YES. [2024-11-20 21:53:47,965 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. [2024-11-20 21:53:47,971 INFO L140 encePairwiseOnDemand]: 35/47 looper letters, 197 selfloop transitions, 30 changer transitions 0/245 dead transitions. [2024-11-20 21:53:47,971 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 147 places, 245 transitions, 2411 flow [2024-11-20 21:53:47,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-20 21:53:47,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-20 21:53:47,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 241 transitions. [2024-11-20 21:53:47,972 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6409574468085106 [2024-11-20 21:53:47,972 INFO L175 Difference]: Start difference. First operand has 140 places, 136 transitions, 1079 flow. Second operand 8 states and 241 transitions. [2024-11-20 21:53:47,973 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 147 places, 245 transitions, 2411 flow [2024-11-20 21:53:47,982 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 145 places, 245 transitions, 2370 flow, removed 11 selfloop flow, removed 2 redundant places. [2024-11-20 21:53:47,984 INFO L231 Difference]: Finished difference. Result has 149 places, 151 transitions, 1348 flow [2024-11-20 21:53:47,984 INFO L260 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} [2024-11-20 21:53:47,985 INFO L277 CegarLoopForPetriNet]: 47 programPoint places, 102 predicate places. [2024-11-20 21:53:47,985 INFO L471 AbstractCegarLoop]: Abstraction has has 149 places, 151 transitions, 1348 flow [2024-11-20 21:53:47,985 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) [2024-11-20 21:53:47,985 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 21:53:47,985 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 21:53:47,985 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-20 21:53:47,986 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)] === [2024-11-20 21:53:47,986 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 21:53:47,986 INFO L85 PathProgramCache]: Analyzing trace with hash -1450198208, now seen corresponding path program 2 times [2024-11-20 21:53:47,986 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 21:53:47,986 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1287820302] [2024-11-20 21:53:47,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 21:53:47,986 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 21:53:47,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 21:53:48,250 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-20 21:53:48,250 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 21:53:48,250 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1287820302] [2024-11-20 21:53:48,250 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1287820302] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 21:53:48,250 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 21:53:48,251 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-20 21:53:48,251 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [975348831] [2024-11-20 21:53:48,251 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 21:53:48,251 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-20 21:53:48,251 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 21:53:48,252 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-20 21:53:48,252 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2024-11-20 21:53:48,252 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 47 [2024-11-20 21:53:48,252 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) [2024-11-20 21:53:48,252 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 21:53:48,252 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 47 [2024-11-20 21:53:48,252 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 21:53:48,591 INFO L124 PetriNetUnfolderBase]: 684/1840 cut-off events. [2024-11-20 21:53:48,591 INFO L125 PetriNetUnfolderBase]: For 7515/7537 co-relation queries the response was YES. [2024-11-20 21:53:48,599 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. [2024-11-20 21:53:48,605 INFO L140 encePairwiseOnDemand]: 35/47 looper letters, 198 selfloop transitions, 38 changer transitions 0/254 dead transitions. [2024-11-20 21:53:48,605 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 156 places, 254 transitions, 2792 flow [2024-11-20 21:53:48,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-20 21:53:48,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-20 21:53:48,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 231 transitions. [2024-11-20 21:53:48,606 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6143617021276596 [2024-11-20 21:53:48,606 INFO L175 Difference]: Start difference. First operand has 149 places, 151 transitions, 1348 flow. Second operand 8 states and 231 transitions. [2024-11-20 21:53:48,606 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 156 places, 254 transitions, 2792 flow [2024-11-20 21:53:48,618 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 153 places, 254 transitions, 2718 flow, removed 5 selfloop flow, removed 3 redundant places. [2024-11-20 21:53:48,621 INFO L231 Difference]: Finished difference. Result has 157 places, 166 transitions, 1626 flow [2024-11-20 21:53:48,622 INFO L260 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} [2024-11-20 21:53:48,622 INFO L277 CegarLoopForPetriNet]: 47 programPoint places, 110 predicate places. [2024-11-20 21:53:48,622 INFO L471 AbstractCegarLoop]: Abstraction has has 157 places, 166 transitions, 1626 flow [2024-11-20 21:53:48,622 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) [2024-11-20 21:53:48,622 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 21:53:48,622 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 21:53:48,623 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-20 21:53:48,623 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)] === [2024-11-20 21:53:48,623 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 21:53:48,623 INFO L85 PathProgramCache]: Analyzing trace with hash 149787254, now seen corresponding path program 3 times [2024-11-20 21:53:48,623 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 21:53:48,623 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2098555615] [2024-11-20 21:53:48,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 21:53:48,624 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 21:53:48,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 21:53:48,931 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-20 21:53:48,931 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 21:53:48,931 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2098555615] [2024-11-20 21:53:48,931 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2098555615] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 21:53:48,931 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 21:53:48,932 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-20 21:53:48,932 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [260323325] [2024-11-20 21:53:48,932 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 21:53:48,932 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-20 21:53:48,932 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 21:53:48,932 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-20 21:53:48,933 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-11-20 21:53:48,933 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 47 [2024-11-20 21:53:48,933 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) [2024-11-20 21:53:48,933 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 21:53:48,933 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 47 [2024-11-20 21:53:48,933 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 21:53:49,295 INFO L124 PetriNetUnfolderBase]: 751/2032 cut-off events. [2024-11-20 21:53:49,295 INFO L125 PetriNetUnfolderBase]: For 10858/10882 co-relation queries the response was YES. [2024-11-20 21:53:49,303 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. [2024-11-20 21:53:49,309 INFO L140 encePairwiseOnDemand]: 35/47 looper letters, 218 selfloop transitions, 42 changer transitions 0/278 dead transitions. [2024-11-20 21:53:49,309 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 164 places, 278 transitions, 3259 flow [2024-11-20 21:53:49,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-20 21:53:49,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-20 21:53:49,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 241 transitions. [2024-11-20 21:53:49,310 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6409574468085106 [2024-11-20 21:53:49,310 INFO L175 Difference]: Start difference. First operand has 157 places, 166 transitions, 1626 flow. Second operand 8 states and 241 transitions. [2024-11-20 21:53:49,310 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 164 places, 278 transitions, 3259 flow [2024-11-20 21:53:49,324 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 161 places, 278 transitions, 3173 flow, removed 7 selfloop flow, removed 3 redundant places. [2024-11-20 21:53:49,327 INFO L231 Difference]: Finished difference. Result has 166 places, 189 transitions, 2092 flow [2024-11-20 21:53:49,327 INFO L260 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} [2024-11-20 21:53:49,327 INFO L277 CegarLoopForPetriNet]: 47 programPoint places, 119 predicate places. [2024-11-20 21:53:49,327 INFO L471 AbstractCegarLoop]: Abstraction has has 166 places, 189 transitions, 2092 flow [2024-11-20 21:53:49,328 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) [2024-11-20 21:53:49,328 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 21:53:49,328 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 21:53:49,328 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-20 21:53:49,328 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)] === [2024-11-20 21:53:49,328 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 21:53:49,328 INFO L85 PathProgramCache]: Analyzing trace with hash 500448102, now seen corresponding path program 3 times [2024-11-20 21:53:49,328 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 21:53:49,329 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1015706169] [2024-11-20 21:53:49,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 21:53:49,329 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 21:53:49,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 21:53:49,631 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-20 21:53:49,631 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 21:53:49,632 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1015706169] [2024-11-20 21:53:49,632 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1015706169] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 21:53:49,632 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 21:53:49,632 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-20 21:53:49,632 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2115186724] [2024-11-20 21:53:49,632 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 21:53:49,632 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-20 21:53:49,633 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 21:53:49,633 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-20 21:53:49,633 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-11-20 21:53:49,634 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 47 [2024-11-20 21:53:49,634 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) [2024-11-20 21:53:49,634 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 21:53:49,634 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 47 [2024-11-20 21:53:49,634 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 21:53:50,179 INFO L124 PetriNetUnfolderBase]: 783/2122 cut-off events. [2024-11-20 21:53:50,179 INFO L125 PetriNetUnfolderBase]: For 13758/13784 co-relation queries the response was YES. [2024-11-20 21:53:50,189 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. [2024-11-20 21:53:50,196 INFO L140 encePairwiseOnDemand]: 34/47 looper letters, 213 selfloop transitions, 61 changer transitions 0/292 dead transitions. [2024-11-20 21:53:50,196 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 173 places, 292 transitions, 3696 flow [2024-11-20 21:53:50,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-20 21:53:50,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-20 21:53:50,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 237 transitions. [2024-11-20 21:53:50,197 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6303191489361702 [2024-11-20 21:53:50,197 INFO L175 Difference]: Start difference. First operand has 166 places, 189 transitions, 2092 flow. Second operand 8 states and 237 transitions. [2024-11-20 21:53:50,197 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 173 places, 292 transitions, 3696 flow [2024-11-20 21:53:50,217 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 172 places, 292 transitions, 3639 flow, removed 28 selfloop flow, removed 1 redundant places. [2024-11-20 21:53:50,220 INFO L231 Difference]: Finished difference. Result has 177 places, 215 transitions, 2705 flow [2024-11-20 21:53:50,220 INFO L260 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} [2024-11-20 21:53:50,220 INFO L277 CegarLoopForPetriNet]: 47 programPoint places, 130 predicate places. [2024-11-20 21:53:50,220 INFO L471 AbstractCegarLoop]: Abstraction has has 177 places, 215 transitions, 2705 flow [2024-11-20 21:53:50,221 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) [2024-11-20 21:53:50,221 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 21:53:50,221 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 21:53:50,221 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-20 21:53:50,221 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)] === [2024-11-20 21:53:50,221 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 21:53:50,221 INFO L85 PathProgramCache]: Analyzing trace with hash -1974924906, now seen corresponding path program 4 times [2024-11-20 21:53:50,221 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 21:53:50,221 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1363976051] [2024-11-20 21:53:50,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 21:53:50,221 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 21:53:50,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 21:53:50,478 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-20 21:53:50,478 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 21:53:50,478 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1363976051] [2024-11-20 21:53:50,479 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1363976051] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 21:53:50,479 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 21:53:50,479 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-20 21:53:50,479 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1861982042] [2024-11-20 21:53:50,479 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 21:53:50,479 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-20 21:53:50,479 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 21:53:50,480 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-20 21:53:50,480 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-11-20 21:53:50,480 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 47 [2024-11-20 21:53:50,480 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) [2024-11-20 21:53:50,480 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 21:53:50,480 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 47 [2024-11-20 21:53:50,480 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 21:53:50,950 INFO L124 PetriNetUnfolderBase]: 783/2142 cut-off events. [2024-11-20 21:53:50,950 INFO L125 PetriNetUnfolderBase]: For 17463/17486 co-relation queries the response was YES. [2024-11-20 21:53:50,957 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. [2024-11-20 21:53:50,963 INFO L140 encePairwiseOnDemand]: 35/47 looper letters, 222 selfloop transitions, 62 changer transitions 0/302 dead transitions. [2024-11-20 21:53:50,964 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 184 places, 302 transitions, 4178 flow [2024-11-20 21:53:50,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-20 21:53:50,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-20 21:53:50,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 236 transitions. [2024-11-20 21:53:50,964 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6276595744680851 [2024-11-20 21:53:50,965 INFO L175 Difference]: Start difference. First operand has 177 places, 215 transitions, 2705 flow. Second operand 8 states and 236 transitions. [2024-11-20 21:53:50,965 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 184 places, 302 transitions, 4178 flow [2024-11-20 21:53:50,986 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 183 places, 302 transitions, 4107 flow, removed 35 selfloop flow, removed 1 redundant places. [2024-11-20 21:53:50,989 INFO L231 Difference]: Finished difference. Result has 187 places, 228 transitions, 3088 flow [2024-11-20 21:53:50,990 INFO L260 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} [2024-11-20 21:53:50,990 INFO L277 CegarLoopForPetriNet]: 47 programPoint places, 140 predicate places. [2024-11-20 21:53:50,990 INFO L471 AbstractCegarLoop]: Abstraction has has 187 places, 228 transitions, 3088 flow [2024-11-20 21:53:50,990 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) [2024-11-20 21:53:50,990 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 21:53:50,990 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 21:53:50,990 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-20 21:53:50,991 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)] === [2024-11-20 21:53:50,991 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 21:53:50,991 INFO L85 PathProgramCache]: Analyzing trace with hash 1695675266, now seen corresponding path program 5 times [2024-11-20 21:53:50,991 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 21:53:50,991 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [906713758] [2024-11-20 21:53:50,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 21:53:50,991 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 21:53:51,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 21:53:51,253 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-20 21:53:51,253 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 21:53:51,253 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [906713758] [2024-11-20 21:53:51,253 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [906713758] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 21:53:51,254 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 21:53:51,254 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-20 21:53:51,254 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [301827849] [2024-11-20 21:53:51,254 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 21:53:51,254 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-20 21:53:51,254 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 21:53:51,254 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-20 21:53:51,254 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-20 21:53:51,255 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 47 [2024-11-20 21:53:51,255 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) [2024-11-20 21:53:51,255 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 21:53:51,255 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 47 [2024-11-20 21:53:51,255 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 21:53:51,833 INFO L124 PetriNetUnfolderBase]: 793/2179 cut-off events. [2024-11-20 21:53:51,833 INFO L125 PetriNetUnfolderBase]: For 19094/19133 co-relation queries the response was YES. [2024-11-20 21:53:51,844 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. [2024-11-20 21:53:51,852 INFO L140 encePairwiseOnDemand]: 35/47 looper letters, 243 selfloop transitions, 100 changer transitions 0/361 dead transitions. [2024-11-20 21:53:51,853 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 199 places, 361 transitions, 5047 flow [2024-11-20 21:53:51,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-20 21:53:51,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2024-11-20 21:53:51,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 363 transitions. [2024-11-20 21:53:51,854 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5941080196399345 [2024-11-20 21:53:51,854 INFO L175 Difference]: Start difference. First operand has 187 places, 228 transitions, 3088 flow. Second operand 13 states and 363 transitions. [2024-11-20 21:53:51,854 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 199 places, 361 transitions, 5047 flow [2024-11-20 21:53:51,887 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 196 places, 361 transitions, 4877 flow, removed 53 selfloop flow, removed 3 redundant places. [2024-11-20 21:53:51,892 INFO L231 Difference]: Finished difference. Result has 200 places, 246 transitions, 3484 flow [2024-11-20 21:53:51,892 INFO L260 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} [2024-11-20 21:53:51,893 INFO L277 CegarLoopForPetriNet]: 47 programPoint places, 153 predicate places. [2024-11-20 21:53:51,893 INFO L471 AbstractCegarLoop]: Abstraction has has 200 places, 246 transitions, 3484 flow [2024-11-20 21:53:51,893 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) [2024-11-20 21:53:51,893 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 21:53:51,893 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 21:53:51,893 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-20 21:53:51,893 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)] === [2024-11-20 21:53:51,894 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 21:53:51,894 INFO L85 PathProgramCache]: Analyzing trace with hash -1539861036, now seen corresponding path program 6 times [2024-11-20 21:53:51,894 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 21:53:51,894 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [444631691] [2024-11-20 21:53:51,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 21:53:51,895 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 21:53:51,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 21:53:52,195 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-20 21:53:52,196 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 21:53:52,196 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [444631691] [2024-11-20 21:53:52,196 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [444631691] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 21:53:52,196 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 21:53:52,196 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-20 21:53:52,196 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2119000719] [2024-11-20 21:53:52,196 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 21:53:52,196 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-20 21:53:52,197 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 21:53:52,197 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-20 21:53:52,197 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-20 21:53:52,197 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 47 [2024-11-20 21:53:52,197 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) [2024-11-20 21:53:52,197 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 21:53:52,197 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 47 [2024-11-20 21:53:52,197 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 21:53:52,772 INFO L124 PetriNetUnfolderBase]: 764/2113 cut-off events. [2024-11-20 21:53:52,772 INFO L125 PetriNetUnfolderBase]: For 19787/19819 co-relation queries the response was YES. [2024-11-20 21:53:52,782 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. [2024-11-20 21:53:52,788 INFO L140 encePairwiseOnDemand]: 34/47 looper letters, 250 selfloop transitions, 99 changer transitions 0/367 dead transitions. [2024-11-20 21:53:52,789 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 211 places, 367 transitions, 5295 flow [2024-11-20 21:53:52,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-20 21:53:52,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2024-11-20 21:53:52,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 349 transitions. [2024-11-20 21:53:52,790 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6187943262411347 [2024-11-20 21:53:52,790 INFO L175 Difference]: Start difference. First operand has 200 places, 246 transitions, 3484 flow. Second operand 12 states and 349 transitions. [2024-11-20 21:53:52,790 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 211 places, 367 transitions, 5295 flow [2024-11-20 21:53:52,820 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 204 places, 367 transitions, 4993 flow, removed 67 selfloop flow, removed 7 redundant places. [2024-11-20 21:53:52,824 INFO L231 Difference]: Finished difference. Result has 207 places, 255 transitions, 3659 flow [2024-11-20 21:53:52,825 INFO L260 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} [2024-11-20 21:53:52,825 INFO L277 CegarLoopForPetriNet]: 47 programPoint places, 160 predicate places. [2024-11-20 21:53:52,825 INFO L471 AbstractCegarLoop]: Abstraction has has 207 places, 255 transitions, 3659 flow [2024-11-20 21:53:52,825 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) [2024-11-20 21:53:52,825 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 21:53:52,826 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 21:53:52,826 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-20 21:53:52,826 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)] === [2024-11-20 21:53:52,827 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 21:53:52,827 INFO L85 PathProgramCache]: Analyzing trace with hash -1526154946, now seen corresponding path program 4 times [2024-11-20 21:53:52,827 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 21:53:52,827 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1092082875] [2024-11-20 21:53:52,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 21:53:52,828 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 21:53:52,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 21:53:53,085 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-20 21:53:53,085 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 21:53:53,085 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1092082875] [2024-11-20 21:53:53,085 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1092082875] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 21:53:53,085 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 21:53:53,085 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-20 21:53:53,085 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2016339532] [2024-11-20 21:53:53,085 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 21:53:53,085 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-20 21:53:53,086 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 21:53:53,086 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-20 21:53:53,086 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-11-20 21:53:53,086 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 47 [2024-11-20 21:53:53,086 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) [2024-11-20 21:53:53,086 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 21:53:53,086 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 47 [2024-11-20 21:53:53,086 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 21:53:53,510 INFO L124 PetriNetUnfolderBase]: 731/2016 cut-off events. [2024-11-20 21:53:53,510 INFO L125 PetriNetUnfolderBase]: For 18395/18430 co-relation queries the response was YES. [2024-11-20 21:53:53,522 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. [2024-11-20 21:53:53,529 INFO L140 encePairwiseOnDemand]: 34/47 looper letters, 214 selfloop transitions, 81 changer transitions 0/313 dead transitions. [2024-11-20 21:53:53,529 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 213 places, 313 transitions, 4770 flow [2024-11-20 21:53:53,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-20 21:53:53,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-20 21:53:53,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 229 transitions. [2024-11-20 21:53:53,530 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6090425531914894 [2024-11-20 21:53:53,530 INFO L175 Difference]: Start difference. First operand has 207 places, 255 transitions, 3659 flow. Second operand 8 states and 229 transitions. [2024-11-20 21:53:53,530 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 213 places, 313 transitions, 4770 flow [2024-11-20 21:53:53,561 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 203 places, 313 transitions, 4592 flow, removed 17 selfloop flow, removed 10 redundant places. [2024-11-20 21:53:53,565 INFO L231 Difference]: Finished difference. Result has 206 places, 261 transitions, 3797 flow [2024-11-20 21:53:53,565 INFO L260 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} [2024-11-20 21:53:53,565 INFO L277 CegarLoopForPetriNet]: 47 programPoint places, 159 predicate places. [2024-11-20 21:53:53,565 INFO L471 AbstractCegarLoop]: Abstraction has has 206 places, 261 transitions, 3797 flow [2024-11-20 21:53:53,566 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) [2024-11-20 21:53:53,566 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 21:53:53,566 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 21:53:53,566 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-20 21:53:53,566 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)] === [2024-11-20 21:53:53,566 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 21:53:53,566 INFO L85 PathProgramCache]: Analyzing trace with hash -1202480660, now seen corresponding path program 5 times [2024-11-20 21:53:53,566 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 21:53:53,566 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [32774558] [2024-11-20 21:53:53,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 21:53:53,566 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 21:53:53,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 21:53:53,817 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-20 21:53:53,817 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 21:53:53,817 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [32774558] [2024-11-20 21:53:53,817 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [32774558] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 21:53:53,817 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 21:53:53,817 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-20 21:53:53,817 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1479636311] [2024-11-20 21:53:53,817 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 21:53:53,818 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-20 21:53:53,819 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 21:53:53,819 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-20 21:53:53,819 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-20 21:53:53,819 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 47 [2024-11-20 21:53:53,819 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) [2024-11-20 21:53:53,819 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 21:53:53,819 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 47 [2024-11-20 21:53:53,819 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 21:53:54,405 INFO L124 PetriNetUnfolderBase]: 793/2202 cut-off events. [2024-11-20 21:53:54,405 INFO L125 PetriNetUnfolderBase]: For 18865/18928 co-relation queries the response was YES. [2024-11-20 21:53:54,418 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. [2024-11-20 21:53:54,425 INFO L140 encePairwiseOnDemand]: 33/47 looper letters, 307 selfloop transitions, 94 changer transitions 0/419 dead transitions. [2024-11-20 21:53:54,425 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 217 places, 419 transitions, 6021 flow [2024-11-20 21:53:54,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-20 21:53:54,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2024-11-20 21:53:54,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 371 transitions. [2024-11-20 21:53:54,426 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6578014184397163 [2024-11-20 21:53:54,426 INFO L175 Difference]: Start difference. First operand has 206 places, 261 transitions, 3797 flow. Second operand 12 states and 371 transitions. [2024-11-20 21:53:54,427 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 217 places, 419 transitions, 6021 flow [2024-11-20 21:53:54,466 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 213 places, 419 transitions, 5837 flow, removed 12 selfloop flow, removed 4 redundant places. [2024-11-20 21:53:54,470 INFO L231 Difference]: Finished difference. Result has 218 places, 284 transitions, 4248 flow [2024-11-20 21:53:54,470 INFO L260 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} [2024-11-20 21:53:54,471 INFO L277 CegarLoopForPetriNet]: 47 programPoint places, 171 predicate places. [2024-11-20 21:53:54,471 INFO L471 AbstractCegarLoop]: Abstraction has has 218 places, 284 transitions, 4248 flow [2024-11-20 21:53:54,471 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) [2024-11-20 21:53:54,471 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 21:53:54,471 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 21:53:54,471 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-20 21:53:54,471 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)] === [2024-11-20 21:53:54,471 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 21:53:54,472 INFO L85 PathProgramCache]: Analyzing trace with hash 617708274, now seen corresponding path program 6 times [2024-11-20 21:53:54,472 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 21:53:54,472 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [423642799] [2024-11-20 21:53:54,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 21:53:54,472 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 21:53:54,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 21:53:54,746 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-20 21:53:54,746 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 21:53:54,747 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [423642799] [2024-11-20 21:53:54,747 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [423642799] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 21:53:54,747 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 21:53:54,747 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-20 21:53:54,747 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [334941231] [2024-11-20 21:53:54,747 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 21:53:54,747 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-20 21:53:54,747 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 21:53:54,747 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-20 21:53:54,748 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-20 21:53:54,748 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 47 [2024-11-20 21:53:54,748 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) [2024-11-20 21:53:54,748 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 21:53:54,748 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 47 [2024-11-20 21:53:54,748 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 21:53:55,307 INFO L124 PetriNetUnfolderBase]: 793/2221 cut-off events. [2024-11-20 21:53:55,307 INFO L125 PetriNetUnfolderBase]: For 20966/21004 co-relation queries the response was YES. [2024-11-20 21:53:55,321 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. [2024-11-20 21:53:55,328 INFO L140 encePairwiseOnDemand]: 34/47 looper letters, 284 selfloop transitions, 112 changer transitions 0/414 dead transitions. [2024-11-20 21:53:55,328 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 230 places, 414 transitions, 6249 flow [2024-11-20 21:53:55,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-20 21:53:55,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2024-11-20 21:53:55,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 378 transitions. [2024-11-20 21:53:55,329 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.618657937806874 [2024-11-20 21:53:55,330 INFO L175 Difference]: Start difference. First operand has 218 places, 284 transitions, 4248 flow. Second operand 13 states and 378 transitions. [2024-11-20 21:53:55,330 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 230 places, 414 transitions, 6249 flow [2024-11-20 21:53:55,375 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 225 places, 414 transitions, 6017 flow, removed 47 selfloop flow, removed 5 redundant places. [2024-11-20 21:53:55,379 INFO L231 Difference]: Finished difference. Result has 229 places, 306 transitions, 4756 flow [2024-11-20 21:53:55,380 INFO L260 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} [2024-11-20 21:53:55,380 INFO L277 CegarLoopForPetriNet]: 47 programPoint places, 182 predicate places. [2024-11-20 21:53:55,380 INFO L471 AbstractCegarLoop]: Abstraction has has 229 places, 306 transitions, 4756 flow [2024-11-20 21:53:55,380 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) [2024-11-20 21:53:55,380 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 21:53:55,380 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 21:53:55,381 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-20 21:53:55,381 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)] === [2024-11-20 21:53:55,381 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 21:53:55,381 INFO L85 PathProgramCache]: Analyzing trace with hash 563595488, now seen corresponding path program 7 times [2024-11-20 21:53:55,381 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 21:53:55,381 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1767489362] [2024-11-20 21:53:55,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 21:53:55,381 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 21:53:55,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 21:53:55,612 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-20 21:53:55,612 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 21:53:55,612 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1767489362] [2024-11-20 21:53:55,613 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1767489362] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 21:53:55,613 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 21:53:55,613 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-20 21:53:55,613 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [426881732] [2024-11-20 21:53:55,613 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 21:53:55,614 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-20 21:53:55,614 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 21:53:55,614 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-20 21:53:55,615 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2024-11-20 21:53:55,615 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 47 [2024-11-20 21:53:55,615 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) [2024-11-20 21:53:55,615 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 21:53:55,615 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 47 [2024-11-20 21:53:55,615 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 21:53:56,150 INFO L124 PetriNetUnfolderBase]: 764/2161 cut-off events. [2024-11-20 21:53:56,150 INFO L125 PetriNetUnfolderBase]: For 21415/21447 co-relation queries the response was YES. [2024-11-20 21:53:56,164 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. [2024-11-20 21:53:56,170 INFO L140 encePairwiseOnDemand]: 33/47 looper letters, 283 selfloop transitions, 115 changer transitions 0/416 dead transitions. [2024-11-20 21:53:56,170 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 240 places, 416 transitions, 6441 flow [2024-11-20 21:53:56,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-20 21:53:56,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2024-11-20 21:53:56,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 362 transitions. [2024-11-20 21:53:56,171 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6418439716312057 [2024-11-20 21:53:56,171 INFO L175 Difference]: Start difference. First operand has 229 places, 306 transitions, 4756 flow. Second operand 12 states and 362 transitions. [2024-11-20 21:53:56,171 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 240 places, 416 transitions, 6441 flow [2024-11-20 21:53:56,215 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 236 places, 416 transitions, 6211 flow, removed 82 selfloop flow, removed 4 redundant places. [2024-11-20 21:53:56,220 INFO L231 Difference]: Finished difference. Result has 239 places, 315 transitions, 5029 flow [2024-11-20 21:53:56,220 INFO L260 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} [2024-11-20 21:53:56,220 INFO L277 CegarLoopForPetriNet]: 47 programPoint places, 192 predicate places. [2024-11-20 21:53:56,220 INFO L471 AbstractCegarLoop]: Abstraction has has 239 places, 315 transitions, 5029 flow [2024-11-20 21:53:56,221 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) [2024-11-20 21:53:56,221 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 21:53:56,221 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 21:53:56,221 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-11-20 21:53:56,221 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)] === [2024-11-20 21:53:56,221 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 21:53:56,221 INFO L85 PathProgramCache]: Analyzing trace with hash 1621907108, now seen corresponding path program 7 times [2024-11-20 21:53:56,221 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 21:53:56,221 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1542972129] [2024-11-20 21:53:56,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 21:53:56,222 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 21:53:56,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 21:53:56,460 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-20 21:53:56,460 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 21:53:56,461 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1542972129] [2024-11-20 21:53:56,461 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1542972129] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 21:53:56,461 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 21:53:56,461 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-20 21:53:56,461 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [143612269] [2024-11-20 21:53:56,461 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 21:53:56,461 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-20 21:53:56,462 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 21:53:56,462 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-20 21:53:56,462 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-11-20 21:53:56,462 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 47 [2024-11-20 21:53:56,462 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) [2024-11-20 21:53:56,463 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 21:53:56,463 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 47 [2024-11-20 21:53:56,463 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 21:53:57,008 INFO L124 PetriNetUnfolderBase]: 658/1887 cut-off events. [2024-11-20 21:53:57,008 INFO L125 PetriNetUnfolderBase]: For 20241/20275 co-relation queries the response was YES. [2024-11-20 21:53:57,020 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. [2024-11-20 21:53:57,027 INFO L140 encePairwiseOnDemand]: 34/47 looper letters, 238 selfloop transitions, 101 changer transitions 0/357 dead transitions. [2024-11-20 21:53:57,027 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 243 places, 357 transitions, 5955 flow [2024-11-20 21:53:57,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-20 21:53:57,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-20 21:53:57,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 239 transitions. [2024-11-20 21:53:57,028 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6356382978723404 [2024-11-20 21:53:57,028 INFO L175 Difference]: Start difference. First operand has 239 places, 315 transitions, 5029 flow. Second operand 8 states and 239 transitions. [2024-11-20 21:53:57,028 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 243 places, 357 transitions, 5955 flow [2024-11-20 21:53:57,077 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 232 places, 357 transitions, 5751 flow, removed 15 selfloop flow, removed 11 redundant places. [2024-11-20 21:53:57,082 INFO L231 Difference]: Finished difference. Result has 235 places, 307 transitions, 5046 flow [2024-11-20 21:53:57,082 INFO L260 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} [2024-11-20 21:53:57,082 INFO L277 CegarLoopForPetriNet]: 47 programPoint places, 188 predicate places. [2024-11-20 21:53:57,083 INFO L471 AbstractCegarLoop]: Abstraction has has 235 places, 307 transitions, 5046 flow [2024-11-20 21:53:57,083 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) [2024-11-20 21:53:57,083 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 21:53:57,083 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 21:53:57,083 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-11-20 21:53:57,083 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)] === [2024-11-20 21:53:57,083 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 21:53:57,083 INFO L85 PathProgramCache]: Analyzing trace with hash -2062484222, now seen corresponding path program 1 times [2024-11-20 21:53:57,084 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 21:53:57,084 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [927363726] [2024-11-20 21:53:57,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 21:53:57,084 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 21:53:57,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 21:53:57,349 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-20 21:53:57,349 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 21:53:57,349 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [927363726] [2024-11-20 21:53:57,349 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [927363726] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 21:53:57,349 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 21:53:57,350 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-20 21:53:57,350 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1205197772] [2024-11-20 21:53:57,350 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 21:53:57,350 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-20 21:53:57,350 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 21:53:57,350 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-20 21:53:57,350 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2024-11-20 21:53:57,370 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 47 [2024-11-20 21:53:57,370 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) [2024-11-20 21:53:57,370 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 21:53:57,370 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 47 [2024-11-20 21:53:57,370 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 21:53:58,429 INFO L124 PetriNetUnfolderBase]: 1220/2924 cut-off events. [2024-11-20 21:53:58,430 INFO L125 PetriNetUnfolderBase]: For 27598/27626 co-relation queries the response was YES. [2024-11-20 21:53:58,446 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. [2024-11-20 21:53:58,457 INFO L140 encePairwiseOnDemand]: 32/47 looper letters, 313 selfloop transitions, 146 changer transitions 0/470 dead transitions. [2024-11-20 21:53:58,457 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 252 places, 470 transitions, 7371 flow [2024-11-20 21:53:58,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-20 21:53:58,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2024-11-20 21:53:58,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 425 transitions. [2024-11-20 21:53:58,458 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5023640661938534 [2024-11-20 21:53:58,458 INFO L175 Difference]: Start difference. First operand has 235 places, 307 transitions, 5046 flow. Second operand 18 states and 425 transitions. [2024-11-20 21:53:58,459 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 252 places, 470 transitions, 7371 flow [2024-11-20 21:53:58,511 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 248 places, 470 transitions, 7139 flow, removed 16 selfloop flow, removed 4 redundant places. [2024-11-20 21:53:58,516 INFO L231 Difference]: Finished difference. Result has 260 places, 355 transitions, 6089 flow [2024-11-20 21:53:58,517 INFO L260 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} [2024-11-20 21:53:58,517 INFO L277 CegarLoopForPetriNet]: 47 programPoint places, 213 predicate places. [2024-11-20 21:53:58,518 INFO L471 AbstractCegarLoop]: Abstraction has has 260 places, 355 transitions, 6089 flow [2024-11-20 21:53:58,518 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) [2024-11-20 21:53:58,518 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 21:53:58,518 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 21:53:58,519 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-11-20 21:53:58,519 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)] === [2024-11-20 21:53:58,519 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 21:53:58,520 INFO L85 PathProgramCache]: Analyzing trace with hash 509382200, now seen corresponding path program 2 times [2024-11-20 21:53:58,520 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 21:53:58,520 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [80756500] [2024-11-20 21:53:58,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 21:53:58,520 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 21:53:58,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 21:53:58,869 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-20 21:53:58,870 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 21:53:58,870 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [80756500] [2024-11-20 21:53:58,870 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [80756500] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 21:53:58,870 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 21:53:58,870 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-20 21:53:58,870 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [376383481] [2024-11-20 21:53:58,870 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 21:53:58,870 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-20 21:53:58,871 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 21:53:58,871 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-20 21:53:58,871 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2024-11-20 21:53:58,900 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 47 [2024-11-20 21:53:58,900 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) [2024-11-20 21:53:58,900 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 21:53:58,901 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 47 [2024-11-20 21:53:58,901 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 21:53:59,764 INFO L124 PetriNetUnfolderBase]: 1291/3121 cut-off events. [2024-11-20 21:53:59,765 INFO L125 PetriNetUnfolderBase]: For 37704/37724 co-relation queries the response was YES. [2024-11-20 21:53:59,782 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. [2024-11-20 21:53:59,791 INFO L140 encePairwiseOnDemand]: 34/47 looper letters, 401 selfloop transitions, 82 changer transitions 0/496 dead transitions. [2024-11-20 21:53:59,791 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 272 places, 496 transitions, 8882 flow [2024-11-20 21:53:59,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-20 21:53:59,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2024-11-20 21:53:59,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 306 transitions. [2024-11-20 21:53:59,793 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5008183306055647 [2024-11-20 21:53:59,793 INFO L175 Difference]: Start difference. First operand has 260 places, 355 transitions, 6089 flow. Second operand 13 states and 306 transitions. [2024-11-20 21:53:59,793 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 272 places, 496 transitions, 8882 flow [2024-11-20 21:53:59,869 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 270 places, 496 transitions, 8724 flow, removed 16 selfloop flow, removed 2 redundant places. [2024-11-20 21:53:59,876 INFO L231 Difference]: Finished difference. Result has 278 places, 409 transitions, 7080 flow [2024-11-20 21:53:59,876 INFO L260 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} [2024-11-20 21:53:59,877 INFO L277 CegarLoopForPetriNet]: 47 programPoint places, 231 predicate places. [2024-11-20 21:53:59,877 INFO L471 AbstractCegarLoop]: Abstraction has has 278 places, 409 transitions, 7080 flow [2024-11-20 21:53:59,877 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) [2024-11-20 21:53:59,877 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 21:53:59,877 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 21:53:59,877 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-11-20 21:53:59,877 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)] === [2024-11-20 21:53:59,878 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 21:53:59,878 INFO L85 PathProgramCache]: Analyzing trace with hash 1756135550, now seen corresponding path program 3 times [2024-11-20 21:53:59,878 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 21:53:59,878 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1255755285] [2024-11-20 21:53:59,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 21:53:59,878 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 21:53:59,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 21:54:00,110 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-20 21:54:00,110 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 21:54:00,111 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1255755285] [2024-11-20 21:54:00,111 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1255755285] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 21:54:00,111 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 21:54:00,111 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-20 21:54:00,111 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [273563356] [2024-11-20 21:54:00,111 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 21:54:00,111 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-20 21:54:00,112 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 21:54:00,112 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-20 21:54:00,112 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2024-11-20 21:54:00,124 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 47 [2024-11-20 21:54:00,124 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) [2024-11-20 21:54:00,124 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 21:54:00,124 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 47 [2024-11-20 21:54:00,124 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 21:54:01,286 INFO L124 PetriNetUnfolderBase]: 1544/3596 cut-off events. [2024-11-20 21:54:01,287 INFO L125 PetriNetUnfolderBase]: For 50260/50294 co-relation queries the response was YES. [2024-11-20 21:54:01,309 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. [2024-11-20 21:54:01,321 INFO L140 encePairwiseOnDemand]: 32/47 looper letters, 373 selfloop transitions, 194 changer transitions 0/578 dead transitions. [2024-11-20 21:54:01,321 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 296 places, 578 transitions, 10111 flow [2024-11-20 21:54:01,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-20 21:54:01,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2024-11-20 21:54:01,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 444 transitions. [2024-11-20 21:54:01,323 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.49720044792833146 [2024-11-20 21:54:01,323 INFO L175 Difference]: Start difference. First operand has 278 places, 409 transitions, 7080 flow. Second operand 19 states and 444 transitions. [2024-11-20 21:54:01,323 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 296 places, 578 transitions, 10111 flow [2024-11-20 21:54:01,434 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 295 places, 578 transitions, 10066 flow, removed 15 selfloop flow, removed 1 redundant places. [2024-11-20 21:54:01,441 INFO L231 Difference]: Finished difference. Result has 307 places, 462 transitions, 8681 flow [2024-11-20 21:54:01,442 INFO L260 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} [2024-11-20 21:54:01,442 INFO L277 CegarLoopForPetriNet]: 47 programPoint places, 260 predicate places. [2024-11-20 21:54:01,442 INFO L471 AbstractCegarLoop]: Abstraction has has 307 places, 462 transitions, 8681 flow [2024-11-20 21:54:01,443 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) [2024-11-20 21:54:01,443 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 21:54:01,443 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 21:54:01,443 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-11-20 21:54:01,443 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)] === [2024-11-20 21:54:01,443 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 21:54:01,443 INFO L85 PathProgramCache]: Analyzing trace with hash -403979112, now seen corresponding path program 1 times [2024-11-20 21:54:01,444 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 21:54:01,444 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [891760671] [2024-11-20 21:54:01,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 21:54:01,444 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 21:54:01,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 21:54:01,653 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-20 21:54:01,653 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 21:54:01,653 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [891760671] [2024-11-20 21:54:01,654 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [891760671] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 21:54:01,654 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 21:54:01,654 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-20 21:54:01,654 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1174776768] [2024-11-20 21:54:01,654 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 21:54:01,655 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-20 21:54:01,656 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 21:54:01,656 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-20 21:54:01,657 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2024-11-20 21:54:01,670 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 47 [2024-11-20 21:54:01,671 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) [2024-11-20 21:54:01,671 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 21:54:01,671 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 47 [2024-11-20 21:54:01,671 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 21:54:03,093 INFO L124 PetriNetUnfolderBase]: 1706/3874 cut-off events. [2024-11-20 21:54:03,094 INFO L125 PetriNetUnfolderBase]: For 65566/65629 co-relation queries the response was YES. [2024-11-20 21:54:03,128 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. [2024-11-20 21:54:03,146 INFO L140 encePairwiseOnDemand]: 32/47 looper letters, 430 selfloop transitions, 197 changer transitions 0/640 dead transitions. [2024-11-20 21:54:03,147 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 322 places, 640 transitions, 11837 flow [2024-11-20 21:54:03,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-20 21:54:03,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2024-11-20 21:54:03,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 409 transitions. [2024-11-20 21:54:03,148 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5438829787234043 [2024-11-20 21:54:03,148 INFO L175 Difference]: Start difference. First operand has 307 places, 462 transitions, 8681 flow. Second operand 16 states and 409 transitions. [2024-11-20 21:54:03,148 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 322 places, 640 transitions, 11837 flow [2024-11-20 21:54:03,342 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 318 places, 640 transitions, 11521 flow, removed 85 selfloop flow, removed 4 redundant places. [2024-11-20 21:54:03,352 INFO L231 Difference]: Finished difference. Result has 327 places, 488 transitions, 9382 flow [2024-11-20 21:54:03,352 INFO L260 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} [2024-11-20 21:54:03,353 INFO L277 CegarLoopForPetriNet]: 47 programPoint places, 280 predicate places. [2024-11-20 21:54:03,353 INFO L471 AbstractCegarLoop]: Abstraction has has 327 places, 488 transitions, 9382 flow [2024-11-20 21:54:03,353 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) [2024-11-20 21:54:03,353 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 21:54:03,353 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 21:54:03,354 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2024-11-20 21:54:03,354 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)] === [2024-11-20 21:54:03,354 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 21:54:03,354 INFO L85 PathProgramCache]: Analyzing trace with hash 1282057256, now seen corresponding path program 4 times [2024-11-20 21:54:03,354 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 21:54:03,354 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [711141556] [2024-11-20 21:54:03,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 21:54:03,355 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 21:54:03,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 21:54:03,764 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-20 21:54:03,764 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 21:54:03,764 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [711141556] [2024-11-20 21:54:03,765 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [711141556] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 21:54:03,765 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 21:54:03,765 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-20 21:54:03,765 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [62295320] [2024-11-20 21:54:03,765 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 21:54:03,765 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-20 21:54:03,765 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 21:54:03,765 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-20 21:54:03,766 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2024-11-20 21:54:03,811 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 47 [2024-11-20 21:54:03,811 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) [2024-11-20 21:54:03,811 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 21:54:03,812 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 47 [2024-11-20 21:54:03,812 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 21:54:05,095 INFO L124 PetriNetUnfolderBase]: 1761/4044 cut-off events. [2024-11-20 21:54:05,096 INFO L125 PetriNetUnfolderBase]: For 80098/80151 co-relation queries the response was YES. [2024-11-20 21:54:05,125 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. [2024-11-20 21:54:05,140 INFO L140 encePairwiseOnDemand]: 34/47 looper letters, 514 selfloop transitions, 103 changer transitions 0/632 dead transitions. [2024-11-20 21:54:05,140 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 339 places, 632 transitions, 12923 flow [2024-11-20 21:54:05,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-20 21:54:05,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2024-11-20 21:54:05,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 301 transitions. [2024-11-20 21:54:05,141 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.49263502454991814 [2024-11-20 21:54:05,141 INFO L175 Difference]: Start difference. First operand has 327 places, 488 transitions, 9382 flow. Second operand 13 states and 301 transitions. [2024-11-20 21:54:05,142 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 339 places, 632 transitions, 12923 flow [2024-11-20 21:54:05,367 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 335 places, 632 transitions, 12620 flow, removed 28 selfloop flow, removed 4 redundant places. [2024-11-20 21:54:05,375 INFO L231 Difference]: Finished difference. Result has 343 places, 540 transitions, 10603 flow [2024-11-20 21:54:05,376 INFO L260 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} [2024-11-20 21:54:05,376 INFO L277 CegarLoopForPetriNet]: 47 programPoint places, 296 predicate places. [2024-11-20 21:54:05,377 INFO L471 AbstractCegarLoop]: Abstraction has has 343 places, 540 transitions, 10603 flow [2024-11-20 21:54:05,377 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) [2024-11-20 21:54:05,377 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 21:54:05,377 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 21:54:05,377 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2024-11-20 21:54:05,377 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)] === [2024-11-20 21:54:05,377 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 21:54:05,378 INFO L85 PathProgramCache]: Analyzing trace with hash -712459620, now seen corresponding path program 5 times [2024-11-20 21:54:05,378 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 21:54:05,378 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1020726989] [2024-11-20 21:54:05,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 21:54:05,378 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 21:54:05,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 21:54:05,590 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-20 21:54:05,590 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 21:54:05,590 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1020726989] [2024-11-20 21:54:05,591 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1020726989] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 21:54:05,591 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 21:54:05,591 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-20 21:54:05,591 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1719409648] [2024-11-20 21:54:05,591 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 21:54:05,591 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-20 21:54:05,591 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 21:54:05,592 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-20 21:54:05,592 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2024-11-20 21:54:05,606 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 47 [2024-11-20 21:54:05,606 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) [2024-11-20 21:54:05,606 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 21:54:05,606 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 47 [2024-11-20 21:54:05,606 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 21:54:07,256 INFO L124 PetriNetUnfolderBase]: 2021/4549 cut-off events. [2024-11-20 21:54:07,256 INFO L125 PetriNetUnfolderBase]: For 101577/101646 co-relation queries the response was YES. [2024-11-20 21:54:07,299 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. [2024-11-20 21:54:07,321 INFO L140 encePairwiseOnDemand]: 32/47 looper letters, 531 selfloop transitions, 150 changer transitions 0/693 dead transitions. [2024-11-20 21:54:07,321 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 361 places, 693 transitions, 13997 flow [2024-11-20 21:54:07,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-20 21:54:07,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2024-11-20 21:54:07,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 451 transitions. [2024-11-20 21:54:07,322 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5050391937290034 [2024-11-20 21:54:07,323 INFO L175 Difference]: Start difference. First operand has 343 places, 540 transitions, 10603 flow. Second operand 19 states and 451 transitions. [2024-11-20 21:54:07,323 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 361 places, 693 transitions, 13997 flow [2024-11-20 21:54:07,631 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 357 places, 693 transitions, 13769 flow, removed 84 selfloop flow, removed 4 redundant places. [2024-11-20 21:54:07,641 INFO L231 Difference]: Finished difference. Result has 367 places, 577 transitions, 11645 flow [2024-11-20 21:54:07,641 INFO L260 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} [2024-11-20 21:54:07,641 INFO L277 CegarLoopForPetriNet]: 47 programPoint places, 320 predicate places. [2024-11-20 21:54:07,642 INFO L471 AbstractCegarLoop]: Abstraction has has 367 places, 577 transitions, 11645 flow [2024-11-20 21:54:07,642 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) [2024-11-20 21:54:07,642 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 21:54:07,642 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 21:54:07,642 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2024-11-20 21:54:07,642 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)] === [2024-11-20 21:54:07,642 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 21:54:07,643 INFO L85 PathProgramCache]: Analyzing trace with hash 886889304, now seen corresponding path program 2 times [2024-11-20 21:54:07,643 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 21:54:07,643 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1927675113] [2024-11-20 21:54:07,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 21:54:07,643 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 21:54:07,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 21:54:07,892 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-20 21:54:07,892 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 21:54:07,892 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1927675113] [2024-11-20 21:54:07,893 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1927675113] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 21:54:07,893 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 21:54:07,893 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-20 21:54:07,893 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1241767486] [2024-11-20 21:54:07,893 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 21:54:07,893 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-20 21:54:07,893 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 21:54:07,894 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-20 21:54:07,894 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2024-11-20 21:54:07,927 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 47 [2024-11-20 21:54:07,927 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) [2024-11-20 21:54:07,927 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 21:54:07,927 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 47 [2024-11-20 21:54:07,928 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 21:54:09,386 INFO L124 PetriNetUnfolderBase]: 1955/4453 cut-off events. [2024-11-20 21:54:09,386 INFO L125 PetriNetUnfolderBase]: For 116661/116672 co-relation queries the response was YES. [2024-11-20 21:54:09,425 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. [2024-11-20 21:54:09,442 INFO L140 encePairwiseOnDemand]: 33/47 looper letters, 650 selfloop transitions, 69 changer transitions 0/735 dead transitions. [2024-11-20 21:54:09,442 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 379 places, 735 transitions, 15576 flow [2024-11-20 21:54:09,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-20 21:54:09,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2024-11-20 21:54:09,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 314 transitions. [2024-11-20 21:54:09,443 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.513911620294599 [2024-11-20 21:54:09,443 INFO L175 Difference]: Start difference. First operand has 367 places, 577 transitions, 11645 flow. Second operand 13 states and 314 transitions. [2024-11-20 21:54:09,443 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 379 places, 735 transitions, 15576 flow [2024-11-20 21:54:09,812 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 378 places, 735 transitions, 15385 flow, removed 95 selfloop flow, removed 1 redundant places. [2024-11-20 21:54:09,823 INFO L231 Difference]: Finished difference. Result has 386 places, 606 transitions, 12183 flow [2024-11-20 21:54:09,824 INFO L260 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} [2024-11-20 21:54:09,824 INFO L277 CegarLoopForPetriNet]: 47 programPoint places, 339 predicate places. [2024-11-20 21:54:09,824 INFO L471 AbstractCegarLoop]: Abstraction has has 386 places, 606 transitions, 12183 flow [2024-11-20 21:54:09,824 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) [2024-11-20 21:54:09,824 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 21:54:09,825 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 21:54:09,825 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2024-11-20 21:54:09,825 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)] === [2024-11-20 21:54:09,825 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 21:54:09,825 INFO L85 PathProgramCache]: Analyzing trace with hash 1599278530, now seen corresponding path program 3 times [2024-11-20 21:54:09,825 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 21:54:09,825 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1027875153] [2024-11-20 21:54:09,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 21:54:09,826 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 21:54:09,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 21:54:10,023 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-20 21:54:10,023 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 21:54:10,023 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1027875153] [2024-11-20 21:54:10,023 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1027875153] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 21:54:10,023 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 21:54:10,023 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-20 21:54:10,023 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [222554753] [2024-11-20 21:54:10,024 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 21:54:10,024 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-20 21:54:10,024 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 21:54:10,025 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-20 21:54:10,025 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2024-11-20 21:54:10,037 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 47 [2024-11-20 21:54:10,037 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) [2024-11-20 21:54:10,037 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 21:54:10,037 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 47 [2024-11-20 21:54:10,037 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 21:54:12,065 INFO L124 PetriNetUnfolderBase]: 2345/5235 cut-off events. [2024-11-20 21:54:12,065 INFO L125 PetriNetUnfolderBase]: For 135687/135733 co-relation queries the response was YES. [2024-11-20 21:54:12,121 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. [2024-11-20 21:54:12,148 INFO L140 encePairwiseOnDemand]: 31/47 looper letters, 676 selfloop transitions, 129 changer transitions 0/819 dead transitions. [2024-11-20 21:54:12,149 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 404 places, 819 transitions, 17075 flow [2024-11-20 21:54:12,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-20 21:54:12,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2024-11-20 21:54:12,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 460 transitions. [2024-11-20 21:54:12,150 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5151175811870101 [2024-11-20 21:54:12,150 INFO L175 Difference]: Start difference. First operand has 386 places, 606 transitions, 12183 flow. Second operand 19 states and 460 transitions. [2024-11-20 21:54:12,150 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 404 places, 819 transitions, 17075 flow [2024-11-20 21:54:12,664 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 401 places, 819 transitions, 16962 flow, removed 23 selfloop flow, removed 3 redundant places. [2024-11-20 21:54:12,678 INFO L231 Difference]: Finished difference. Result has 410 places, 659 transitions, 13337 flow [2024-11-20 21:54:12,678 INFO L260 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} [2024-11-20 21:54:12,679 INFO L277 CegarLoopForPetriNet]: 47 programPoint places, 363 predicate places. [2024-11-20 21:54:12,679 INFO L471 AbstractCegarLoop]: Abstraction has has 410 places, 659 transitions, 13337 flow [2024-11-20 21:54:12,679 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) [2024-11-20 21:54:12,679 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 21:54:12,679 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 21:54:12,680 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2024-11-20 21:54:12,680 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)] === [2024-11-20 21:54:12,680 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 21:54:12,680 INFO L85 PathProgramCache]: Analyzing trace with hash -490389874, now seen corresponding path program 6 times [2024-11-20 21:54:12,680 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 21:54:12,680 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1840617216] [2024-11-20 21:54:12,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 21:54:12,681 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 21:54:12,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 21:54:13,004 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-20 21:54:13,004 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 21:54:13,004 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1840617216] [2024-11-20 21:54:13,005 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1840617216] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 21:54:13,005 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 21:54:13,005 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-20 21:54:13,005 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [96565158] [2024-11-20 21:54:13,005 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 21:54:13,005 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-20 21:54:13,006 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 21:54:13,006 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-20 21:54:13,006 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2024-11-20 21:54:13,028 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 47 [2024-11-20 21:54:13,028 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) [2024-11-20 21:54:13,028 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 21:54:13,028 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 47 [2024-11-20 21:54:13,028 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 21:54:14,781 INFO L124 PetriNetUnfolderBase]: 2182/4925 cut-off events. [2024-11-20 21:54:14,782 INFO L125 PetriNetUnfolderBase]: For 154468/154488 co-relation queries the response was YES. [2024-11-20 21:54:14,830 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. [2024-11-20 21:54:14,850 INFO L140 encePairwiseOnDemand]: 34/47 looper letters, 667 selfloop transitions, 98 changer transitions 0/782 dead transitions. [2024-11-20 21:54:14,851 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 422 places, 782 transitions, 16808 flow [2024-11-20 21:54:14,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-20 21:54:14,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2024-11-20 21:54:14,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 312 transitions. [2024-11-20 21:54:14,852 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5106382978723404 [2024-11-20 21:54:14,852 INFO L175 Difference]: Start difference. First operand has 410 places, 659 transitions, 13337 flow. Second operand 13 states and 312 transitions. [2024-11-20 21:54:14,852 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 422 places, 782 transitions, 16808 flow [2024-11-20 21:54:15,385 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 421 places, 782 transitions, 16697 flow, removed 55 selfloop flow, removed 1 redundant places. [2024-11-20 21:54:15,397 INFO L231 Difference]: Finished difference. Result has 428 places, 687 transitions, 14206 flow [2024-11-20 21:54:15,398 INFO L260 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} [2024-11-20 21:54:15,398 INFO L277 CegarLoopForPetriNet]: 47 programPoint places, 381 predicate places. [2024-11-20 21:54:15,398 INFO L471 AbstractCegarLoop]: Abstraction has has 428 places, 687 transitions, 14206 flow [2024-11-20 21:54:15,398 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) [2024-11-20 21:54:15,398 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 21:54:15,399 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 21:54:15,399 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2024-11-20 21:54:15,399 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)] === [2024-11-20 21:54:15,399 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 21:54:15,399 INFO L85 PathProgramCache]: Analyzing trace with hash -1398929920, now seen corresponding path program 4 times [2024-11-20 21:54:15,399 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 21:54:15,399 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2123025497] [2024-11-20 21:54:15,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 21:54:15,400 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 21:54:15,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 21:54:15,624 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-20 21:54:15,624 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 21:54:15,624 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2123025497] [2024-11-20 21:54:15,624 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2123025497] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 21:54:15,624 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 21:54:15,624 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-20 21:54:15,625 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1521269526] [2024-11-20 21:54:15,625 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 21:54:15,625 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-20 21:54:15,625 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 21:54:15,625 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-20 21:54:15,625 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2024-11-20 21:54:15,637 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 47 [2024-11-20 21:54:15,638 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) [2024-11-20 21:54:15,638 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 21:54:15,638 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 47 [2024-11-20 21:54:15,638 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 21:54:17,892 INFO L124 PetriNetUnfolderBase]: 2744/6061 cut-off events. [2024-11-20 21:54:17,892 INFO L125 PetriNetUnfolderBase]: For 194832/194887 co-relation queries the response was YES. [2024-11-20 21:54:17,959 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. [2024-11-20 21:54:17,986 INFO L140 encePairwiseOnDemand]: 31/47 looper letters, 642 selfloop transitions, 261 changer transitions 0/917 dead transitions. [2024-11-20 21:54:17,986 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 445 places, 917 transitions, 19756 flow [2024-11-20 21:54:17,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-20 21:54:17,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2024-11-20 21:54:17,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 428 transitions. [2024-11-20 21:54:17,990 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5059101654846335 [2024-11-20 21:54:17,990 INFO L175 Difference]: Start difference. First operand has 428 places, 687 transitions, 14206 flow. Second operand 18 states and 428 transitions. [2024-11-20 21:54:17,990 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 445 places, 917 transitions, 19756 flow [2024-11-20 21:54:18,763 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 443 places, 917 transitions, 19544 flow, removed 99 selfloop flow, removed 2 redundant places. [2024-11-20 21:54:18,776 INFO L231 Difference]: Finished difference. Result has 454 places, 775 transitions, 16614 flow [2024-11-20 21:54:18,777 INFO L260 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} [2024-11-20 21:54:18,778 INFO L277 CegarLoopForPetriNet]: 47 programPoint places, 407 predicate places. [2024-11-20 21:54:18,778 INFO L471 AbstractCegarLoop]: Abstraction has has 454 places, 775 transitions, 16614 flow [2024-11-20 21:54:18,778 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) [2024-11-20 21:54:18,778 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 21:54:18,778 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 21:54:18,779 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2024-11-20 21:54:18,779 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)] === [2024-11-20 21:54:18,779 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 21:54:18,779 INFO L85 PathProgramCache]: Analyzing trace with hash -1403731420, now seen corresponding path program 7 times [2024-11-20 21:54:18,779 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 21:54:18,780 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [924548634] [2024-11-20 21:54:18,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 21:54:18,780 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 21:54:18,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 21:54:18,970 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-20 21:54:18,970 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 21:54:18,970 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [924548634] [2024-11-20 21:54:18,970 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [924548634] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 21:54:18,970 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 21:54:18,970 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-20 21:54:18,971 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2083186819] [2024-11-20 21:54:18,971 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 21:54:18,971 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-20 21:54:18,971 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 21:54:18,971 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-20 21:54:18,972 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2024-11-20 21:54:18,984 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 47 [2024-11-20 21:54:18,985 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) [2024-11-20 21:54:18,985 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 21:54:18,985 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 47 [2024-11-20 21:54:18,985 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 21:54:21,333 INFO L124 PetriNetUnfolderBase]: 2880/6183 cut-off events. [2024-11-20 21:54:21,333 INFO L125 PetriNetUnfolderBase]: For 238011/238106 co-relation queries the response was YES. [2024-11-20 21:54:21,406 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. [2024-11-20 21:54:21,433 INFO L140 encePairwiseOnDemand]: 32/47 looper letters, 650 selfloop transitions, 260 changer transitions 0/924 dead transitions. [2024-11-20 21:54:21,433 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 469 places, 924 transitions, 20745 flow [2024-11-20 21:54:21,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-20 21:54:21,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2024-11-20 21:54:21,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 379 transitions. [2024-11-20 21:54:21,434 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5039893617021277 [2024-11-20 21:54:21,434 INFO L175 Difference]: Start difference. First operand has 454 places, 775 transitions, 16614 flow. Second operand 16 states and 379 transitions. [2024-11-20 21:54:21,435 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 469 places, 924 transitions, 20745 flow [2024-11-20 21:54:22,349 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 465 places, 924 transitions, 20271 flow, removed 78 selfloop flow, removed 4 redundant places. [2024-11-20 21:54:22,363 INFO L231 Difference]: Finished difference. Result has 474 places, 803 transitions, 17716 flow [2024-11-20 21:54:22,363 INFO L260 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} [2024-11-20 21:54:22,364 INFO L277 CegarLoopForPetriNet]: 47 programPoint places, 427 predicate places. [2024-11-20 21:54:22,364 INFO L471 AbstractCegarLoop]: Abstraction has has 474 places, 803 transitions, 17716 flow [2024-11-20 21:54:22,364 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) [2024-11-20 21:54:22,364 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 21:54:22,364 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 21:54:22,364 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2024-11-20 21:54:22,365 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)] === [2024-11-20 21:54:22,365 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 21:54:22,365 INFO L85 PathProgramCache]: Analyzing trace with hash -213190240, now seen corresponding path program 5 times [2024-11-20 21:54:22,365 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 21:54:22,365 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [596785379] [2024-11-20 21:54:22,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 21:54:22,366 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 21:54:22,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 21:54:22,573 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-20 21:54:22,573 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 21:54:22,573 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [596785379] [2024-11-20 21:54:22,573 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [596785379] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 21:54:22,574 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 21:54:22,574 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-20 21:54:22,574 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2055320627] [2024-11-20 21:54:22,574 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 21:54:22,574 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-20 21:54:22,574 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 21:54:22,575 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-20 21:54:22,575 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2024-11-20 21:54:22,597 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 47 [2024-11-20 21:54:22,598 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) [2024-11-20 21:54:22,598 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 21:54:22,598 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 47 [2024-11-20 21:54:22,598 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 21:54:25,615 INFO L124 PetriNetUnfolderBase]: 3141/6863 cut-off events. [2024-11-20 21:54:25,615 INFO L125 PetriNetUnfolderBase]: For 280620/280705 co-relation queries the response was YES. [2024-11-20 21:54:25,725 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. [2024-11-20 21:54:25,767 INFO L140 encePairwiseOnDemand]: 31/47 looper letters, 703 selfloop transitions, 292 changer transitions 0/1010 dead transitions. [2024-11-20 21:54:25,768 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 491 places, 1010 transitions, 23336 flow [2024-11-20 21:54:25,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-20 21:54:25,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2024-11-20 21:54:25,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 422 transitions. [2024-11-20 21:54:25,769 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4988179669030733 [2024-11-20 21:54:25,769 INFO L175 Difference]: Start difference. First operand has 474 places, 803 transitions, 17716 flow. Second operand 18 states and 422 transitions. [2024-11-20 21:54:25,770 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 491 places, 1010 transitions, 23336 flow [2024-11-20 21:54:27,187 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 488 places, 1010 transitions, 22768 flow, removed 167 selfloop flow, removed 3 redundant places. [2024-11-20 21:54:27,205 INFO L231 Difference]: Finished difference. Result has 500 places, 880 transitions, 19946 flow [2024-11-20 21:54:27,206 INFO L260 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} [2024-11-20 21:54:27,207 INFO L277 CegarLoopForPetriNet]: 47 programPoint places, 453 predicate places. [2024-11-20 21:54:27,207 INFO L471 AbstractCegarLoop]: Abstraction has has 500 places, 880 transitions, 19946 flow [2024-11-20 21:54:27,207 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) [2024-11-20 21:54:27,207 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 21:54:27,207 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 21:54:27,207 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2024-11-20 21:54:27,207 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)] === [2024-11-20 21:54:27,208 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 21:54:27,208 INFO L85 PathProgramCache]: Analyzing trace with hash -539460744, now seen corresponding path program 6 times [2024-11-20 21:54:27,208 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 21:54:27,208 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1979727042] [2024-11-20 21:54:27,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 21:54:27,208 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 21:54:27,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 21:54:27,455 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-20 21:54:27,455 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 21:54:27,456 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1979727042] [2024-11-20 21:54:27,457 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1979727042] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 21:54:27,457 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 21:54:27,457 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-20 21:54:27,457 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1510400224] [2024-11-20 21:54:27,457 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 21:54:27,457 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-20 21:54:27,457 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 21:54:27,458 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-20 21:54:27,458 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2024-11-20 21:54:27,470 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 47 [2024-11-20 21:54:27,470 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) [2024-11-20 21:54:27,470 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 21:54:27,471 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 47 [2024-11-20 21:54:27,471 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 21:54:30,432 INFO L124 PetriNetUnfolderBase]: 3292/7160 cut-off events. [2024-11-20 21:54:30,432 INFO L125 PetriNetUnfolderBase]: For 326218/326342 co-relation queries the response was YES. [2024-11-20 21:54:30,534 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. [2024-11-20 21:54:30,569 INFO L140 encePairwiseOnDemand]: 31/47 looper letters, 743 selfloop transitions, 299 changer transitions 0/1057 dead transitions. [2024-11-20 21:54:30,569 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 518 places, 1057 transitions, 25164 flow [2024-11-20 21:54:30,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-20 21:54:30,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2024-11-20 21:54:30,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 445 transitions. [2024-11-20 21:54:30,570 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.49832026875699886 [2024-11-20 21:54:30,570 INFO L175 Difference]: Start difference. First operand has 500 places, 880 transitions, 19946 flow. Second operand 19 states and 445 transitions. [2024-11-20 21:54:30,570 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 518 places, 1057 transitions, 25164 flow [2024-11-20 21:54:31,951 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 516 places, 1057 transitions, 24839 flow, removed 110 selfloop flow, removed 2 redundant places. [2024-11-20 21:54:31,967 INFO L231 Difference]: Finished difference. Result has 527 places, 922 transitions, 21734 flow [2024-11-20 21:54:31,968 INFO L260 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} [2024-11-20 21:54:31,968 INFO L277 CegarLoopForPetriNet]: 47 programPoint places, 480 predicate places. [2024-11-20 21:54:31,968 INFO L471 AbstractCegarLoop]: Abstraction has has 527 places, 922 transitions, 21734 flow [2024-11-20 21:54:31,968 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) [2024-11-20 21:54:31,969 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 21:54:31,969 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 21:54:31,969 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2024-11-20 21:54:31,969 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)] === [2024-11-20 21:54:31,969 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 21:54:31,969 INFO L85 PathProgramCache]: Analyzing trace with hash 35745172, now seen corresponding path program 7 times [2024-11-20 21:54:31,969 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 21:54:31,969 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [910046748] [2024-11-20 21:54:31,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 21:54:31,970 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 21:54:31,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 21:54:32,163 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-20 21:54:32,163 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 21:54:32,163 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [910046748] [2024-11-20 21:54:32,163 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [910046748] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 21:54:32,163 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 21:54:32,164 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-20 21:54:32,164 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [266349909] [2024-11-20 21:54:32,164 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 21:54:32,164 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-20 21:54:32,164 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 21:54:32,164 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-20 21:54:32,164 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2024-11-20 21:54:32,182 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 47 [2024-11-20 21:54:32,182 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) [2024-11-20 21:54:32,182 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 21:54:32,182 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 47 [2024-11-20 21:54:32,182 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 21:54:35,469 INFO L124 PetriNetUnfolderBase]: 3443/7457 cut-off events. [2024-11-20 21:54:35,469 INFO L125 PetriNetUnfolderBase]: For 383467/383589 co-relation queries the response was YES. [2024-11-20 21:54:35,584 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. [2024-11-20 21:54:35,621 INFO L140 encePairwiseOnDemand]: 31/47 looper letters, 735 selfloop transitions, 378 changer transitions 0/1128 dead transitions. [2024-11-20 21:54:35,622 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 545 places, 1128 transitions, 27879 flow [2024-11-20 21:54:35,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-20 21:54:35,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2024-11-20 21:54:35,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 436 transitions. [2024-11-20 21:54:35,623 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.48824188129899215 [2024-11-20 21:54:35,623 INFO L175 Difference]: Start difference. First operand has 527 places, 922 transitions, 21734 flow. Second operand 19 states and 436 transitions. [2024-11-20 21:54:35,623 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 545 places, 1128 transitions, 27879 flow [2024-11-20 21:54:37,411 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 540 places, 1128 transitions, 27434 flow, removed 136 selfloop flow, removed 5 redundant places. [2024-11-20 21:54:37,433 INFO L231 Difference]: Finished difference. Result has 554 places, 970 transitions, 24153 flow [2024-11-20 21:54:37,435 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=21313, PETRI_DIFFERENCE_MINUEND_PLACES=522, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=922, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=332, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=568, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=24153, PETRI_PLACES=554, PETRI_TRANSITIONS=970} [2024-11-20 21:54:37,435 INFO L277 CegarLoopForPetriNet]: 47 programPoint places, 507 predicate places. [2024-11-20 21:54:37,435 INFO L471 AbstractCegarLoop]: Abstraction has has 554 places, 970 transitions, 24153 flow [2024-11-20 21:54:37,435 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) [2024-11-20 21:54:37,435 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 21:54:37,436 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 21:54:37,436 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2024-11-20 21:54:37,436 INFO L396 AbstractCegarLoop]: === Iteration 42 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2024-11-20 21:54:37,436 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 21:54:37,436 INFO L85 PathProgramCache]: Analyzing trace with hash 23225908, now seen corresponding path program 8 times [2024-11-20 21:54:37,437 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 21:54:37,437 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1815405841] [2024-11-20 21:54:37,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 21:54:37,437 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 21:54:37,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 21:54:37,672 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-20 21:54:37,672 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 21:54:37,672 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1815405841] [2024-11-20 21:54:37,672 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1815405841] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 21:54:37,672 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 21:54:37,672 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-20 21:54:37,673 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [876508079] [2024-11-20 21:54:37,673 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 21:54:37,673 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-20 21:54:37,673 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 21:54:37,674 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-20 21:54:37,674 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2024-11-20 21:54:37,698 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 47 [2024-11-20 21:54:37,699 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 554 places, 970 transitions, 24153 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) [2024-11-20 21:54:37,699 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 21:54:37,699 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 47 [2024-11-20 21:54:37,699 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 21:54:40,954 INFO L124 PetriNetUnfolderBase]: 3297/7221 cut-off events. [2024-11-20 21:54:40,955 INFO L125 PetriNetUnfolderBase]: For 442368/442451 co-relation queries the response was YES. [2024-11-20 21:54:41,072 INFO L83 FinitePrefix]: Finished finitePrefix Result has 74258 conditions, 7221 events. 3297/7221 cut-off events. For 442368/442451 co-relation queries the response was YES. Maximal size of possible extension queue 316. Compared 59217 event pairs, 900 based on Foata normal form. 54/7207 useless extension candidates. Maximal degree in co-relation 73896. Up to 5048 conditions per place. [2024-11-20 21:54:41,112 INFO L140 encePairwiseOnDemand]: 32/47 looper letters, 930 selfloop transitions, 218 changer transitions 0/1170 dead transitions. [2024-11-20 21:54:41,112 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 569 places, 1170 transitions, 30262 flow [2024-11-20 21:54:41,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-20 21:54:41,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2024-11-20 21:54:41,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 397 transitions. [2024-11-20 21:54:41,113 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5279255319148937 [2024-11-20 21:54:41,113 INFO L175 Difference]: Start difference. First operand has 554 places, 970 transitions, 24153 flow. Second operand 16 states and 397 transitions. [2024-11-20 21:54:41,113 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 569 places, 1170 transitions, 30262 flow [2024-11-20 21:54:43,278 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 567 places, 1170 transitions, 29904 flow, removed 176 selfloop flow, removed 2 redundant places. [2024-11-20 21:54:43,297 INFO L231 Difference]: Finished difference. Result has 577 places, 1011 transitions, 25854 flow [2024-11-20 21:54:43,298 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=23815, PETRI_DIFFERENCE_MINUEND_PLACES=552, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=970, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=185, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=765, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=25854, PETRI_PLACES=577, PETRI_TRANSITIONS=1011} [2024-11-20 21:54:43,298 INFO L277 CegarLoopForPetriNet]: 47 programPoint places, 530 predicate places. [2024-11-20 21:54:43,298 INFO L471 AbstractCegarLoop]: Abstraction has has 577 places, 1011 transitions, 25854 flow [2024-11-20 21:54:43,299 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) [2024-11-20 21:54:43,299 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 21:54:43,299 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 21:54:43,299 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2024-11-20 21:54:43,299 INFO L396 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2024-11-20 21:54:43,299 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 21:54:43,299 INFO L85 PathProgramCache]: Analyzing trace with hash -1766156690, now seen corresponding path program 8 times [2024-11-20 21:54:43,299 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 21:54:43,299 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [21545650] [2024-11-20 21:54:43,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 21:54:43,299 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 21:54:43,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 21:54:43,501 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-20 21:54:43,502 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 21:54:43,502 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [21545650] [2024-11-20 21:54:43,502 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [21545650] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 21:54:43,502 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 21:54:43,502 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-20 21:54:43,502 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [106836400] [2024-11-20 21:54:43,502 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 21:54:43,502 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-20 21:54:43,503 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 21:54:43,503 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-20 21:54:43,503 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2024-11-20 21:54:43,529 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 47 [2024-11-20 21:54:43,529 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 577 places, 1011 transitions, 25854 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) [2024-11-20 21:54:43,529 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 21:54:43,529 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 47 [2024-11-20 21:54:43,529 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 21:54:47,703 INFO L124 PetriNetUnfolderBase]: 3892/8487 cut-off events. [2024-11-20 21:54:47,704 INFO L125 PetriNetUnfolderBase]: For 521801/521890 co-relation queries the response was YES. [2024-11-20 21:54:47,848 INFO L83 FinitePrefix]: Finished finitePrefix Result has 86294 conditions, 8487 events. 3892/8487 cut-off events. For 521801/521890 co-relation queries the response was YES. Maximal size of possible extension queue 344. Compared 71259 event pairs, 1056 based on Foata normal form. 53/8435 useless extension candidates. Maximal degree in co-relation 85922. Up to 2494 conditions per place. [2024-11-20 21:54:47,896 INFO L140 encePairwiseOnDemand]: 32/47 looper letters, 815 selfloop transitions, 410 changer transitions 0/1242 dead transitions. [2024-11-20 21:54:47,896 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 595 places, 1242 transitions, 33143 flow [2024-11-20 21:54:47,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-20 21:54:47,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2024-11-20 21:54:47,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 438 transitions. [2024-11-20 21:54:47,898 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.49048152295632697 [2024-11-20 21:54:47,898 INFO L175 Difference]: Start difference. First operand has 577 places, 1011 transitions, 25854 flow. Second operand 19 states and 438 transitions. [2024-11-20 21:54:47,898 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 595 places, 1242 transitions, 33143 flow [2024-11-20 21:54:50,634 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 590 places, 1242 transitions, 32404 flow, removed 304 selfloop flow, removed 5 redundant places. [2024-11-20 21:54:50,655 INFO L231 Difference]: Finished difference. Result has 604 places, 1055 transitions, 28210 flow [2024-11-20 21:54:50,660 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=25237, PETRI_DIFFERENCE_MINUEND_PLACES=572, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1011, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=366, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=623, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=28210, PETRI_PLACES=604, PETRI_TRANSITIONS=1055} [2024-11-20 21:54:50,661 INFO L277 CegarLoopForPetriNet]: 47 programPoint places, 557 predicate places. [2024-11-20 21:54:50,661 INFO L471 AbstractCegarLoop]: Abstraction has has 604 places, 1055 transitions, 28210 flow [2024-11-20 21:54:50,663 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) [2024-11-20 21:54:50,663 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 21:54:50,663 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 21:54:50,663 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2024-11-20 21:54:50,663 INFO L396 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2024-11-20 21:54:50,664 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 21:54:50,664 INFO L85 PathProgramCache]: Analyzing trace with hash 595824386, now seen corresponding path program 9 times [2024-11-20 21:54:50,664 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 21:54:50,664 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1304834645] [2024-11-20 21:54:50,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 21:54:50,665 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 21:54:50,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 21:54:50,856 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-20 21:54:50,856 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 21:54:50,857 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1304834645] [2024-11-20 21:54:50,857 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1304834645] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 21:54:50,857 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 21:54:50,857 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-20 21:54:50,857 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1150763033] [2024-11-20 21:54:50,857 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 21:54:50,857 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-20 21:54:50,857 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 21:54:50,858 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-20 21:54:50,858 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2024-11-20 21:54:50,870 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 47 [2024-11-20 21:54:50,871 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 604 places, 1055 transitions, 28210 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) [2024-11-20 21:54:50,871 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 21:54:50,871 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 47 [2024-11-20 21:54:50,871 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 21:54:55,025 INFO L124 PetriNetUnfolderBase]: 3998/8539 cut-off events. [2024-11-20 21:54:55,025 INFO L125 PetriNetUnfolderBase]: For 600990/601201 co-relation queries the response was YES. [2024-11-20 21:54:55,207 INFO L83 FinitePrefix]: Finished finitePrefix Result has 92667 conditions, 8539 events. 3998/8539 cut-off events. For 600990/601201 co-relation queries the response was YES. Maximal size of possible extension queue 327. Compared 69984 event pairs, 1629 based on Foata normal form. 84/8544 useless extension candidates. Maximal degree in co-relation 92281. Up to 4109 conditions per place. [2024-11-20 21:54:55,260 INFO L140 encePairwiseOnDemand]: 32/47 looper letters, 965 selfloop transitions, 241 changer transitions 0/1223 dead transitions. [2024-11-20 21:54:55,260 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 622 places, 1223 transitions, 34410 flow [2024-11-20 21:54:55,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-20 21:54:55,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2024-11-20 21:54:55,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 438 transitions. [2024-11-20 21:54:55,261 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.49048152295632697 [2024-11-20 21:54:55,261 INFO L175 Difference]: Start difference. First operand has 604 places, 1055 transitions, 28210 flow. Second operand 19 states and 438 transitions. [2024-11-20 21:54:55,261 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 622 places, 1223 transitions, 34410 flow [2024-11-20 21:54:59,475 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 621 places, 1223 transitions, 34051 flow, removed 179 selfloop flow, removed 1 redundant places. [2024-11-20 21:54:59,497 INFO L231 Difference]: Finished difference. Result has 632 places, 1090 transitions, 29860 flow [2024-11-20 21:54:59,497 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=27879, PETRI_DIFFERENCE_MINUEND_PLACES=603, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1055, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=206, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=831, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=29860, PETRI_PLACES=632, PETRI_TRANSITIONS=1090} [2024-11-20 21:54:59,498 INFO L277 CegarLoopForPetriNet]: 47 programPoint places, 585 predicate places. [2024-11-20 21:54:59,498 INFO L471 AbstractCegarLoop]: Abstraction has has 632 places, 1090 transitions, 29860 flow [2024-11-20 21:54:59,498 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) [2024-11-20 21:54:59,498 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 21:54:59,498 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 21:54:59,498 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2024-11-20 21:54:59,498 INFO L396 AbstractCegarLoop]: === Iteration 45 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2024-11-20 21:54:59,498 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 21:54:59,499 INFO L85 PathProgramCache]: Analyzing trace with hash 1377208784, now seen corresponding path program 9 times [2024-11-20 21:54:59,499 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 21:54:59,499 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [763202071] [2024-11-20 21:54:59,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 21:54:59,499 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 21:54:59,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 21:54:59,692 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-20 21:54:59,693 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 21:54:59,693 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [763202071] [2024-11-20 21:54:59,693 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [763202071] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 21:54:59,693 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 21:54:59,693 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-20 21:54:59,693 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [637394364] [2024-11-20 21:54:59,693 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 21:54:59,693 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-20 21:54:59,693 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 21:54:59,693 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-20 21:54:59,694 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2024-11-20 21:54:59,708 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 47 [2024-11-20 21:54:59,708 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 632 places, 1090 transitions, 29860 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) [2024-11-20 21:54:59,708 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 21:54:59,709 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 47 [2024-11-20 21:54:59,709 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 21:55:04,830 INFO L124 PetriNetUnfolderBase]: 4031/8682 cut-off events. [2024-11-20 21:55:04,830 INFO L125 PetriNetUnfolderBase]: For 666188/666436 co-relation queries the response was YES. [2024-11-20 21:55:05,005 INFO L83 FinitePrefix]: Finished finitePrefix Result has 96243 conditions, 8682 events. 4031/8682 cut-off events. For 666188/666436 co-relation queries the response was YES. Maximal size of possible extension queue 352. Compared 72307 event pairs, 1517 based on Foata normal form. 112/8702 useless extension candidates. Maximal degree in co-relation 95845. Up to 3219 conditions per place. [2024-11-20 21:55:05,068 INFO L140 encePairwiseOnDemand]: 31/47 looper letters, 1055 selfloop transitions, 210 changer transitions 0/1283 dead transitions. [2024-11-20 21:55:05,068 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 649 places, 1283 transitions, 36477 flow [2024-11-20 21:55:05,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-20 21:55:05,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2024-11-20 21:55:05,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 451 transitions. [2024-11-20 21:55:05,069 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.533096926713948 [2024-11-20 21:55:05,070 INFO L175 Difference]: Start difference. First operand has 632 places, 1090 transitions, 29860 flow. Second operand 18 states and 451 transitions. [2024-11-20 21:55:05,070 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 649 places, 1283 transitions, 36477 flow