./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/goblint-regression/06-symbeq_05-funloop_hard2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version c7c6ca5d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/goblint-regression/06-symbeq_05-funloop_hard2.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 9e83a031749850377e0f1ecd2c361048b8f87f697f146600048034d31c93bd9a --- Real Ultimate output --- This is Ultimate 0.2.5-?-c7c6ca5-m [2024-11-09 15:03:05,697 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 15:03:05,765 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-09 15:03:05,772 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 15:03:05,774 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 15:03:05,816 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 15:03:05,818 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 15:03:05,818 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 15:03:05,819 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-09 15:03:05,820 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-09 15:03:05,820 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 15:03:05,821 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 15:03:05,821 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-09 15:03:05,822 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-09 15:03:05,822 INFO L153 SettingsManager]: * Use SBE=true [2024-11-09 15:03:05,822 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 15:03:05,822 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 15:03:05,823 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 15:03:05,823 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 15:03:05,824 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 15:03:05,825 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 15:03:05,828 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 15:03:05,828 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 15:03:05,828 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 15:03:05,829 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 15:03:05,829 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-09 15:03:05,829 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-09 15:03:05,829 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 15:03:05,829 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 15:03:05,830 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 15:03:05,830 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 15:03:05,830 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-09 15:03:05,830 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 15:03:05,830 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 15:03:05,831 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 15:03:05,831 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 15:03:05,838 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 15:03:05,839 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 15:03:05,839 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-09 15:03:05,840 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 15:03:05,840 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 15:03:05,841 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-09 15:03:05,841 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-09 15:03:05,841 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 15:03:05,841 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9e83a031749850377e0f1ecd2c361048b8f87f697f146600048034d31c93bd9a [2024-11-09 15:03:06,084 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 15:03:06,110 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 15:03:06,113 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 15:03:06,115 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 15:03:06,115 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 15:03:06,116 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/06-symbeq_05-funloop_hard2.i [2024-11-09 15:03:07,545 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 15:03:07,850 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 15:03:07,851 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/06-symbeq_05-funloop_hard2.i [2024-11-09 15:03:07,874 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2008c2e60/fca6c73a4bc94b82a039e6e75f187017/FLAG26e754bf7 [2024-11-09 15:03:07,888 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2008c2e60/fca6c73a4bc94b82a039e6e75f187017 [2024-11-09 15:03:07,890 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 15:03:07,892 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 15:03:07,893 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 15:03:07,893 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 15:03:07,899 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 15:03:07,900 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 03:03:07" (1/1) ... [2024-11-09 15:03:07,900 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@470bf0d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:03:07, skipping insertion in model container [2024-11-09 15:03:07,901 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 03:03:07" (1/1) ... [2024-11-09 15:03:07,953 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 15:03:08,414 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 15:03:08,462 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 15:03:08,514 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 15:03:08,583 INFO L204 MainTranslator]: Completed translation [2024-11-09 15:03:08,584 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:03:08 WrapperNode [2024-11-09 15:03:08,584 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 15:03:08,585 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 15:03:08,585 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 15:03:08,585 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 15:03:08,592 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:03:08" (1/1) ... [2024-11-09 15:03:08,613 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:03:08" (1/1) ... [2024-11-09 15:03:08,650 INFO L138 Inliner]: procedures = 263, calls = 74, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 155 [2024-11-09 15:03:08,654 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 15:03:08,655 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 15:03:08,655 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 15:03:08,655 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 15:03:08,667 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:03:08" (1/1) ... [2024-11-09 15:03:08,668 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:03:08" (1/1) ... [2024-11-09 15:03:08,676 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:03:08" (1/1) ... [2024-11-09 15:03:08,696 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]. [2024-11-09 15:03:08,698 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:03:08" (1/1) ... [2024-11-09 15:03:08,698 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:03:08" (1/1) ... [2024-11-09 15:03:08,707 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:03:08" (1/1) ... [2024-11-09 15:03:08,714 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:03:08" (1/1) ... [2024-11-09 15:03:08,719 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:03:08" (1/1) ... [2024-11-09 15:03:08,720 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:03:08" (1/1) ... [2024-11-09 15:03:08,724 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 15:03:08,728 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 15:03:08,728 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 15:03:08,728 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 15:03:08,729 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:03:08" (1/1) ... [2024-11-09 15:03:08,736 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 15:03:08,746 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 15:03:08,767 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) [2024-11-09 15:03:08,769 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 [2024-11-09 15:03:08,806 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-09 15:03:08,806 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-09 15:03:08,807 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-09 15:03:08,807 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-09 15:03:08,807 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 15:03:08,807 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-11-09 15:03:08,807 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-11-09 15:03:08,807 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-09 15:03:08,807 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 15:03:08,808 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 15:03:08,809 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-09 15:03:08,943 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 15:03:08,944 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 15:03:09,286 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-09 15:03:09,286 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 15:03:09,644 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 15:03:09,644 INFO L316 CfgBuilder]: Removed 3 assume(true) statements. [2024-11-09 15:03:09,645 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 03:03:09 BoogieIcfgContainer [2024-11-09 15:03:09,646 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 15:03:09,648 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 15:03:09,649 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 15:03:09,652 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 15:03:09,653 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 03:03:07" (1/3) ... [2024-11-09 15:03:09,654 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15dfaab1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 03:03:09, skipping insertion in model container [2024-11-09 15:03:09,654 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:03:08" (2/3) ... [2024-11-09 15:03:09,655 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15dfaab1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 03:03:09, skipping insertion in model container [2024-11-09 15:03:09,655 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 03:03:09" (3/3) ... [2024-11-09 15:03:09,657 INFO L112 eAbstractionObserver]: Analyzing ICFG 06-symbeq_05-funloop_hard2.i [2024-11-09 15:03:09,673 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 15:03:09,675 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 12 error locations. [2024-11-09 15:03:09,675 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-09 15:03:09,721 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-09 15:03:09,760 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 48 places, 47 transitions, 98 flow [2024-11-09 15:03:09,793 INFO L124 PetriNetUnfolderBase]: 3/46 cut-off events. [2024-11-09 15:03:09,795 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-09 15:03:09,798 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. [2024-11-09 15:03:09,799 INFO L82 GeneralOperation]: Start removeDead. Operand has 48 places, 47 transitions, 98 flow [2024-11-09 15:03:09,802 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 47 places, 46 transitions, 95 flow [2024-11-09 15:03:09,816 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 15:03:09,824 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;@6da8ef4b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 15:03:09,825 INFO L334 AbstractCegarLoop]: Starting to check reachability of 17 error locations. [2024-11-09 15:03:09,831 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-09 15:03:09,831 INFO L124 PetriNetUnfolderBase]: 0/3 cut-off events. [2024-11-09 15:03:09,832 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-09 15:03:09,832 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:03:09,832 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2024-11-09 15:03:09,833 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)] === [2024-11-09 15:03:09,838 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:03:09,838 INFO L85 PathProgramCache]: Analyzing trace with hash 406437, now seen corresponding path program 1 times [2024-11-09 15:03:09,846 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:03:09,847 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1468665685] [2024-11-09 15:03:09,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:03:09,847 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:03:09,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:03:10,179 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 15:03:10,179 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:03:10,180 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1468665685] [2024-11-09 15:03:10,180 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1468665685] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 15:03:10,181 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 15:03:10,181 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 15:03:10,182 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1336076131] [2024-11-09 15:03:10,183 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 15:03:10,191 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 15:03:10,197 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:03:10,224 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 15:03:10,224 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 15:03:10,237 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 47 [2024-11-09 15:03:10,240 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) [2024-11-09 15:03:10,240 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:03:10,240 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 47 [2024-11-09 15:03:10,243 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 15:03:10,447 INFO L124 PetriNetUnfolderBase]: 128/386 cut-off events. [2024-11-09 15:03:10,448 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-09 15:03:10,449 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. [2024-11-09 15:03:10,452 INFO L140 encePairwiseOnDemand]: 41/47 looper letters, 29 selfloop transitions, 3 changer transitions 0/48 dead transitions. [2024-11-09 15:03:10,453 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 48 transitions, 163 flow [2024-11-09 15:03:10,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 15:03:10,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-09 15:03:10,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 103 transitions. [2024-11-09 15:03:10,466 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5478723404255319 [2024-11-09 15:03:10,467 INFO L175 Difference]: Start difference. First operand has 47 places, 46 transitions, 95 flow. Second operand 4 states and 103 transitions. [2024-11-09 15:03:10,468 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 48 transitions, 163 flow [2024-11-09 15:03:10,470 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 48 transitions, 162 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-09 15:03:10,473 INFO L231 Difference]: Finished difference. Result has 51 places, 48 transitions, 118 flow [2024-11-09 15:03:10,474 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} [2024-11-09 15:03:10,478 INFO L277 CegarLoopForPetriNet]: 47 programPoint places, 4 predicate places. [2024-11-09 15:03:10,479 INFO L471 AbstractCegarLoop]: Abstraction has has 51 places, 48 transitions, 118 flow [2024-11-09 15:03:10,479 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) [2024-11-09 15:03:10,479 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:03:10,479 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1] [2024-11-09 15:03:10,480 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 15:03:10,480 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)] === [2024-11-09 15:03:10,480 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:03:10,480 INFO L85 PathProgramCache]: Analyzing trace with hash -776355770, now seen corresponding path program 1 times [2024-11-09 15:03:10,481 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:03:10,481 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2065189809] [2024-11-09 15:03:10,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:03:10,481 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:03:10,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:03:10,697 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 15:03:10,697 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:03:10,699 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2065189809] [2024-11-09 15:03:10,699 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2065189809] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 15:03:10,699 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1418974748] [2024-11-09 15:03:10,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:03:10,700 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 15:03:10,700 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 15:03:10,702 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) [2024-11-09 15:03:10,704 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-09 15:03:10,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:03:10,800 INFO L255 TraceCheckSpWp]: Trace formula consists of 154 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-09 15:03:10,804 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 15:03:10,870 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 15:03:10,870 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 15:03:10,870 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1418974748] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 15:03:10,870 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 15:03:10,870 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2024-11-09 15:03:10,871 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [679704896] [2024-11-09 15:03:10,871 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 15:03:10,872 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 15:03:10,872 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:03:10,872 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 15:03:10,873 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-09 15:03:10,886 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 47 [2024-11-09 15:03:10,886 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) [2024-11-09 15:03:10,886 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:03:10,886 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 47 [2024-11-09 15:03:10,886 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 15:03:11,085 INFO L124 PetriNetUnfolderBase]: 128/385 cut-off events. [2024-11-09 15:03:11,087 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-11-09 15:03:11,088 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. [2024-11-09 15:03:11,090 INFO L140 encePairwiseOnDemand]: 42/47 looper letters, 25 selfloop transitions, 6 changer transitions 0/47 dead transitions. [2024-11-09 15:03:11,092 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 47 transitions, 176 flow [2024-11-09 15:03:11,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 15:03:11,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-09 15:03:11,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 134 transitions. [2024-11-09 15:03:11,094 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.475177304964539 [2024-11-09 15:03:11,094 INFO L175 Difference]: Start difference. First operand has 51 places, 48 transitions, 118 flow. Second operand 6 states and 134 transitions. [2024-11-09 15:03:11,094 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 47 transitions, 176 flow [2024-11-09 15:03:11,095 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 47 transitions, 174 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-09 15:03:11,096 INFO L231 Difference]: Finished difference. Result has 54 places, 47 transitions, 124 flow [2024-11-09 15:03:11,097 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} [2024-11-09 15:03:11,097 INFO L277 CegarLoopForPetriNet]: 47 programPoint places, 7 predicate places. [2024-11-09 15:03:11,098 INFO L471 AbstractCegarLoop]: Abstraction has has 54 places, 47 transitions, 124 flow [2024-11-09 15:03:11,098 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) [2024-11-09 15:03:11,098 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:03:11,098 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1] [2024-11-09 15:03:11,117 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-09 15:03:11,302 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 [2024-11-09 15:03:11,303 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)] === [2024-11-09 15:03:11,304 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:03:11,304 INFO L85 PathProgramCache]: Analyzing trace with hash 1702775290, now seen corresponding path program 1 times [2024-11-09 15:03:11,304 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:03:11,304 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1467306656] [2024-11-09 15:03:11,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:03:11,304 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:03:11,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:03:11,358 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-09 15:03:11,359 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:03:11,359 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1467306656] [2024-11-09 15:03:11,359 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1467306656] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 15:03:11,360 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 15:03:11,360 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 15:03:11,360 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2009112025] [2024-11-09 15:03:11,360 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 15:03:11,361 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 15:03:11,361 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:03:11,362 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 15:03:11,362 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 15:03:11,366 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 47 [2024-11-09 15:03:11,366 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) [2024-11-09 15:03:11,367 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:03:11,367 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 47 [2024-11-09 15:03:11,368 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 15:03:11,469 INFO L124 PetriNetUnfolderBase]: 128/384 cut-off events. [2024-11-09 15:03:11,469 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2024-11-09 15:03:11,472 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. [2024-11-09 15:03:11,474 INFO L140 encePairwiseOnDemand]: 44/47 looper letters, 26 selfloop transitions, 4 changer transitions 0/46 dead transitions. [2024-11-09 15:03:11,476 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 46 transitions, 180 flow [2024-11-09 15:03:11,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 15:03:11,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 15:03:11,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 80 transitions. [2024-11-09 15:03:11,479 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5673758865248227 [2024-11-09 15:03:11,479 INFO L175 Difference]: Start difference. First operand has 54 places, 47 transitions, 124 flow. Second operand 3 states and 80 transitions. [2024-11-09 15:03:11,479 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 46 transitions, 180 flow [2024-11-09 15:03:11,480 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 46 transitions, 158 flow, removed 3 selfloop flow, removed 6 redundant places. [2024-11-09 15:03:11,481 INFO L231 Difference]: Finished difference. Result has 49 places, 46 transitions, 106 flow [2024-11-09 15:03:11,481 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} [2024-11-09 15:03:11,482 INFO L277 CegarLoopForPetriNet]: 47 programPoint places, 2 predicate places. [2024-11-09 15:03:11,484 INFO L471 AbstractCegarLoop]: Abstraction has has 49 places, 46 transitions, 106 flow [2024-11-09 15:03:11,485 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) [2024-11-09 15:03:11,485 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:03:11,485 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 15:03:11,485 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-09 15:03:11,486 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)] === [2024-11-09 15:03:11,486 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:03:11,487 INFO L85 PathProgramCache]: Analyzing trace with hash -92986018, now seen corresponding path program 1 times [2024-11-09 15:03:11,487 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:03:11,488 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [760820321] [2024-11-09 15:03:11,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:03:11,488 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:03:11,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:03:11,594 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 15:03:11,594 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:03:11,594 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [760820321] [2024-11-09 15:03:11,595 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [760820321] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 15:03:11,596 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [101248536] [2024-11-09 15:03:11,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:03:11,596 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 15:03:11,596 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 15:03:11,598 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) [2024-11-09 15:03:11,599 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-09 15:03:11,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:03:11,688 INFO L255 TraceCheckSpWp]: Trace formula consists of 189 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 15:03:11,690 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 15:03:11,714 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 15:03:11,714 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 15:03:11,754 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 15:03:11,754 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [101248536] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 15:03:11,755 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 15:03:11,755 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 9 [2024-11-09 15:03:11,755 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1485266836] [2024-11-09 15:03:11,755 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 15:03:11,755 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-09 15:03:11,756 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:03:11,756 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-09 15:03:11,756 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-09 15:03:11,775 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 47 [2024-11-09 15:03:11,776 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) [2024-11-09 15:03:11,777 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:03:11,777 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 47 [2024-11-09 15:03:11,777 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 15:03:11,949 INFO L124 PetriNetUnfolderBase]: 128/388 cut-off events. [2024-11-09 15:03:11,950 INFO L125 PetriNetUnfolderBase]: For 9/9 co-relation queries the response was YES. [2024-11-09 15:03:11,951 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. [2024-11-09 15:03:11,953 INFO L140 encePairwiseOnDemand]: 43/47 looper letters, 26 selfloop transitions, 7 changer transitions 0/49 dead transitions. [2024-11-09 15:03:11,953 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 49 transitions, 187 flow [2024-11-09 15:03:11,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-09 15:03:11,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-09 15:03:11,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 154 transitions. [2024-11-09 15:03:11,956 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.46808510638297873 [2024-11-09 15:03:11,956 INFO L175 Difference]: Start difference. First operand has 49 places, 46 transitions, 106 flow. Second operand 7 states and 154 transitions. [2024-11-09 15:03:11,956 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 49 transitions, 187 flow [2024-11-09 15:03:11,957 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 49 transitions, 173 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-09 15:03:11,958 INFO L231 Difference]: Finished difference. Result has 55 places, 49 transitions, 132 flow [2024-11-09 15:03:11,958 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} [2024-11-09 15:03:11,959 INFO L277 CegarLoopForPetriNet]: 47 programPoint places, 8 predicate places. [2024-11-09 15:03:11,959 INFO L471 AbstractCegarLoop]: Abstraction has has 55 places, 49 transitions, 132 flow [2024-11-09 15:03:11,959 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) [2024-11-09 15:03:11,960 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:03:11,960 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 15:03:11,974 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-09 15:03:12,160 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 [2024-11-09 15:03:12,161 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)] === [2024-11-09 15:03:12,161 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:03:12,161 INFO L85 PathProgramCache]: Analyzing trace with hash 1115452862, now seen corresponding path program 2 times [2024-11-09 15:03:12,162 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:03:12,162 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [958305025] [2024-11-09 15:03:12,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:03:12,162 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:03:12,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:03:12,330 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 15:03:12,331 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:03:12,331 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [958305025] [2024-11-09 15:03:12,332 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [958305025] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 15:03:12,332 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [881248977] [2024-11-09 15:03:12,332 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-09 15:03:12,333 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 15:03:12,333 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 15:03:12,335 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) [2024-11-09 15:03:12,336 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-09 15:03:12,421 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-09 15:03:12,421 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 15:03:12,423 INFO L255 TraceCheckSpWp]: Trace formula consists of 178 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-09 15:03:12,424 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 15:03:12,717 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 [2024-11-09 15:03:12,732 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-09 15:03:12,732 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 15:03:12,732 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [881248977] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 15:03:12,732 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 15:03:12,732 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8] total 12 [2024-11-09 15:03:12,732 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1289293026] [2024-11-09 15:03:12,733 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 15:03:12,733 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 15:03:12,733 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:03:12,734 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 15:03:12,734 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2024-11-09 15:03:12,741 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 47 [2024-11-09 15:03:12,742 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) [2024-11-09 15:03:12,742 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:03:12,742 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 47 [2024-11-09 15:03:12,742 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 15:03:13,134 INFO L124 PetriNetUnfolderBase]: 357/881 cut-off events. [2024-11-09 15:03:13,135 INFO L125 PetriNetUnfolderBase]: For 15/15 co-relation queries the response was YES. [2024-11-09 15:03:13,136 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. [2024-11-09 15:03:13,139 INFO L140 encePairwiseOnDemand]: 36/47 looper letters, 106 selfloop transitions, 16 changer transitions 0/136 dead transitions. [2024-11-09 15:03:13,139 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 136 transitions, 550 flow [2024-11-09 15:03:13,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-09 15:03:13,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-09 15:03:13,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 256 transitions. [2024-11-09 15:03:13,141 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6808510638297872 [2024-11-09 15:03:13,141 INFO L175 Difference]: Start difference. First operand has 55 places, 49 transitions, 132 flow. Second operand 8 states and 256 transitions. [2024-11-09 15:03:13,141 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 136 transitions, 550 flow [2024-11-09 15:03:13,143 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 136 transitions, 546 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-09 15:03:13,145 INFO L231 Difference]: Finished difference. Result has 66 places, 65 transitions, 248 flow [2024-11-09 15:03:13,145 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} [2024-11-09 15:03:13,146 INFO L277 CegarLoopForPetriNet]: 47 programPoint places, 19 predicate places. [2024-11-09 15:03:13,146 INFO L471 AbstractCegarLoop]: Abstraction has has 66 places, 65 transitions, 248 flow [2024-11-09 15:03:13,146 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) [2024-11-09 15:03:13,146 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:03:13,146 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 15:03:13,164 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-09 15:03:13,350 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 [2024-11-09 15:03:13,351 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)] === [2024-11-09 15:03:13,351 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:03:13,351 INFO L85 PathProgramCache]: Analyzing trace with hash 1082013421, now seen corresponding path program 1 times [2024-11-09 15:03:13,351 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:03:13,352 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1471206451] [2024-11-09 15:03:13,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:03:13,352 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:03:13,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:03:13,393 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-09 15:03:13,393 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:03:13,394 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1471206451] [2024-11-09 15:03:13,394 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1471206451] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 15:03:13,394 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 15:03:13,394 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 15:03:13,394 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [484502550] [2024-11-09 15:03:13,394 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 15:03:13,395 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 15:03:13,395 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:03:13,395 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 15:03:13,396 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 15:03:13,396 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 47 [2024-11-09 15:03:13,396 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) [2024-11-09 15:03:13,396 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:03:13,396 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 47 [2024-11-09 15:03:13,397 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 15:03:13,534 INFO L124 PetriNetUnfolderBase]: 270/759 cut-off events. [2024-11-09 15:03:13,534 INFO L125 PetriNetUnfolderBase]: For 331/359 co-relation queries the response was YES. [2024-11-09 15:03:13,536 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. [2024-11-09 15:03:13,540 INFO L140 encePairwiseOnDemand]: 44/47 looper letters, 70 selfloop transitions, 2 changer transitions 0/90 dead transitions. [2024-11-09 15:03:13,541 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 90 transitions, 492 flow [2024-11-09 15:03:13,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 15:03:13,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 15:03:13,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 102 transitions. [2024-11-09 15:03:13,542 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.723404255319149 [2024-11-09 15:03:13,542 INFO L175 Difference]: Start difference. First operand has 66 places, 65 transitions, 248 flow. Second operand 3 states and 102 transitions. [2024-11-09 15:03:13,542 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 90 transitions, 492 flow [2024-11-09 15:03:13,548 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 90 transitions, 492 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-09 15:03:13,551 INFO L231 Difference]: Finished difference. Result has 69 places, 66 transitions, 260 flow [2024-11-09 15:03:13,552 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} [2024-11-09 15:03:13,552 INFO L277 CegarLoopForPetriNet]: 47 programPoint places, 22 predicate places. [2024-11-09 15:03:13,553 INFO L471 AbstractCegarLoop]: Abstraction has has 69 places, 66 transitions, 260 flow [2024-11-09 15:03:13,553 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) [2024-11-09 15:03:13,553 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:03:13,553 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 15:03:13,553 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-09 15:03:13,553 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)] === [2024-11-09 15:03:13,553 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:03:13,554 INFO L85 PathProgramCache]: Analyzing trace with hash 1081981441, now seen corresponding path program 1 times [2024-11-09 15:03:13,554 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:03:13,554 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2056513163] [2024-11-09 15:03:13,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:03:13,554 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:03:13,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:03:13,672 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 15:03:13,672 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:03:13,672 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2056513163] [2024-11-09 15:03:13,672 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2056513163] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 15:03:13,672 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2027671500] [2024-11-09 15:03:13,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:03:13,672 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 15:03:13,673 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 15:03:13,674 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) [2024-11-09 15:03:13,675 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-09 15:03:13,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:03:13,755 INFO L255 TraceCheckSpWp]: Trace formula consists of 207 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-09 15:03:13,756 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 15:03:13,796 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 15:03:13,797 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 15:03:13,886 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 15:03:13,886 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2027671500] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 15:03:13,886 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 15:03:13,886 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 17 [2024-11-09 15:03:13,887 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1617696095] [2024-11-09 15:03:13,887 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 15:03:13,887 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-09 15:03:13,887 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:03:13,888 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-09 15:03:13,888 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2024-11-09 15:03:13,904 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 47 [2024-11-09 15:03:13,904 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) [2024-11-09 15:03:13,905 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:03:13,905 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 47 [2024-11-09 15:03:13,905 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 15:03:14,179 INFO L124 PetriNetUnfolderBase]: 270/781 cut-off events. [2024-11-09 15:03:14,179 INFO L125 PetriNetUnfolderBase]: For 427/449 co-relation queries the response was YES. [2024-11-09 15:03:14,181 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. [2024-11-09 15:03:14,184 INFO L140 encePairwiseOnDemand]: 43/47 looper letters, 41 selfloop transitions, 15 changer transitions 0/74 dead transitions. [2024-11-09 15:03:14,184 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 83 places, 74 transitions, 420 flow [2024-11-09 15:03:14,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-09 15:03:14,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-11-09 15:03:14,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 300 transitions. [2024-11-09 15:03:14,186 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.425531914893617 [2024-11-09 15:03:14,186 INFO L175 Difference]: Start difference. First operand has 69 places, 66 transitions, 260 flow. Second operand 15 states and 300 transitions. [2024-11-09 15:03:14,186 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 83 places, 74 transitions, 420 flow [2024-11-09 15:03:14,189 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 82 places, 74 transitions, 418 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-09 15:03:14,191 INFO L231 Difference]: Finished difference. Result has 86 places, 74 transitions, 355 flow [2024-11-09 15:03:14,191 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} [2024-11-09 15:03:14,192 INFO L277 CegarLoopForPetriNet]: 47 programPoint places, 39 predicate places. [2024-11-09 15:03:14,192 INFO L471 AbstractCegarLoop]: Abstraction has has 86 places, 74 transitions, 355 flow [2024-11-09 15:03:14,193 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) [2024-11-09 15:03:14,193 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:03:14,193 INFO L204 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 15:03:14,211 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-09 15:03:14,393 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 [2024-11-09 15:03:14,394 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)] === [2024-11-09 15:03:14,394 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:03:14,394 INFO L85 PathProgramCache]: Analyzing trace with hash -925826367, now seen corresponding path program 2 times [2024-11-09 15:03:14,394 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:03:14,394 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [675656168] [2024-11-09 15:03:14,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:03:14,395 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:03:14,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:03:14,665 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 15:03:14,665 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:03:14,665 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [675656168] [2024-11-09 15:03:14,666 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [675656168] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 15:03:14,666 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [68154307] [2024-11-09 15:03:14,666 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-09 15:03:14,666 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 15:03:14,666 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 15:03:14,668 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) [2024-11-09 15:03:14,671 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-09 15:03:14,751 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-09 15:03:14,752 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 15:03:14,753 INFO L255 TraceCheckSpWp]: Trace formula consists of 174 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-09 15:03:14,755 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 15:03:15,052 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 [2024-11-09 15:03:15,073 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-09 15:03:15,073 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 15:03:15,073 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [68154307] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 15:03:15,073 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 15:03:15,073 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [16] total 20 [2024-11-09 15:03:15,074 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [400841809] [2024-11-09 15:03:15,074 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 15:03:15,074 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 15:03:15,074 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:03:15,075 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 15:03:15,075 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=89, Invalid=331, Unknown=0, NotChecked=0, Total=420 [2024-11-09 15:03:15,086 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 47 [2024-11-09 15:03:15,087 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) [2024-11-09 15:03:15,087 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:03:15,087 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 47 [2024-11-09 15:03:15,087 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 15:03:15,480 INFO L124 PetriNetUnfolderBase]: 461/1208 cut-off events. [2024-11-09 15:03:15,480 INFO L125 PetriNetUnfolderBase]: For 629/674 co-relation queries the response was YES. [2024-11-09 15:03:15,484 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. [2024-11-09 15:03:15,490 INFO L140 encePairwiseOnDemand]: 37/47 looper letters, 111 selfloop transitions, 32 changer transitions 0/159 dead transitions. [2024-11-09 15:03:15,490 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 93 places, 159 transitions, 986 flow [2024-11-09 15:03:15,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-09 15:03:15,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-09 15:03:15,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 229 transitions. [2024-11-09 15:03:15,492 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6090425531914894 [2024-11-09 15:03:15,492 INFO L175 Difference]: Start difference. First operand has 86 places, 74 transitions, 355 flow. Second operand 8 states and 229 transitions. [2024-11-09 15:03:15,492 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 93 places, 159 transitions, 986 flow [2024-11-09 15:03:15,497 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 89 places, 159 transitions, 976 flow, removed 1 selfloop flow, removed 4 redundant places. [2024-11-09 15:03:15,500 INFO L231 Difference]: Finished difference. Result has 95 places, 105 transitions, 651 flow [2024-11-09 15:03:15,500 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} [2024-11-09 15:03:15,501 INFO L277 CegarLoopForPetriNet]: 47 programPoint places, 48 predicate places. [2024-11-09 15:03:15,501 INFO L471 AbstractCegarLoop]: Abstraction has has 95 places, 105 transitions, 651 flow [2024-11-09 15:03:15,501 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) [2024-11-09 15:03:15,501 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:03:15,501 INFO L204 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 15:03:15,520 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-09 15:03:15,705 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 [2024-11-09 15:03:15,706 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)] === [2024-11-09 15:03:15,706 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:03:15,706 INFO L85 PathProgramCache]: Analyzing trace with hash 1364154082, now seen corresponding path program 1 times [2024-11-09 15:03:15,706 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:03:15,706 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1195420299] [2024-11-09 15:03:15,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:03:15,707 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:03:15,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:03:15,974 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 15:03:15,974 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:03:15,974 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1195420299] [2024-11-09 15:03:15,974 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1195420299] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 15:03:15,974 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1222802679] [2024-11-09 15:03:15,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:03:15,974 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 15:03:15,975 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 15:03:15,977 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) [2024-11-09 15:03:15,978 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-09 15:03:16,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:03:16,088 INFO L255 TraceCheckSpWp]: Trace formula consists of 252 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-09 15:03:16,090 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 15:03:16,155 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 15:03:16,155 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 15:03:16,343 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 15:03:16,343 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1222802679] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 15:03:16,343 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 15:03:16,343 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16, 16] total 22 [2024-11-09 15:03:16,343 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1676033782] [2024-11-09 15:03:16,344 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 15:03:16,344 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-09 15:03:16,344 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:03:16,345 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-09 15:03:16,345 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2024-11-09 15:03:16,368 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 47 [2024-11-09 15:03:16,369 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) [2024-11-09 15:03:16,369 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:03:16,370 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 47 [2024-11-09 15:03:16,370 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 15:03:16,702 INFO L124 PetriNetUnfolderBase]: 379/1081 cut-off events. [2024-11-09 15:03:16,703 INFO L125 PetriNetUnfolderBase]: For 1521/1599 co-relation queries the response was YES. [2024-11-09 15:03:16,706 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. [2024-11-09 15:03:16,711 INFO L140 encePairwiseOnDemand]: 43/47 looper letters, 70 selfloop transitions, 21 changer transitions 0/111 dead transitions. [2024-11-09 15:03:16,711 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 115 places, 111 transitions, 887 flow [2024-11-09 15:03:16,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-09 15:03:16,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2024-11-09 15:03:16,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 407 transitions. [2024-11-09 15:03:16,713 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.41236068895643363 [2024-11-09 15:03:16,713 INFO L175 Difference]: Start difference. First operand has 95 places, 105 transitions, 651 flow. Second operand 21 states and 407 transitions. [2024-11-09 15:03:16,713 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 115 places, 111 transitions, 887 flow [2024-11-09 15:03:16,719 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 115 places, 111 transitions, 887 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-09 15:03:16,721 INFO L231 Difference]: Finished difference. Result has 118 places, 111 transitions, 762 flow [2024-11-09 15:03:16,721 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} [2024-11-09 15:03:16,722 INFO L277 CegarLoopForPetriNet]: 47 programPoint places, 71 predicate places. [2024-11-09 15:03:16,722 INFO L471 AbstractCegarLoop]: Abstraction has has 118 places, 111 transitions, 762 flow [2024-11-09 15:03:16,723 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) [2024-11-09 15:03:16,723 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:03:16,723 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 15:03:16,741 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-09 15:03:16,923 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 [2024-11-09 15:03:16,924 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)] === [2024-11-09 15:03:16,924 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:03:16,924 INFO L85 PathProgramCache]: Analyzing trace with hash -732466678, now seen corresponding path program 1 times [2024-11-09 15:03:16,925 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:03:16,925 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1547980376] [2024-11-09 15:03:16,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:03:16,925 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:03:16,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:03:17,273 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-09 15:03:17,277 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:03:17,278 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1547980376] [2024-11-09 15:03:17,278 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1547980376] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 15:03:17,278 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 15:03:17,278 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 15:03:17,278 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [598485239] [2024-11-09 15:03:17,278 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 15:03:17,279 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 15:03:17,279 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:03:17,279 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 15:03:17,279 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-09 15:03:17,287 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 47 [2024-11-09 15:03:17,288 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) [2024-11-09 15:03:17,288 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:03:17,288 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 47 [2024-11-09 15:03:17,288 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 15:03:17,596 INFO L124 PetriNetUnfolderBase]: 455/1232 cut-off events. [2024-11-09 15:03:17,596 INFO L125 PetriNetUnfolderBase]: For 1814/1850 co-relation queries the response was YES. [2024-11-09 15:03:17,600 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. [2024-11-09 15:03:17,606 INFO L140 encePairwiseOnDemand]: 40/47 looper letters, 106 selfloop transitions, 18 changer transitions 0/140 dead transitions. [2024-11-09 15:03:17,607 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 124 places, 140 transitions, 1136 flow [2024-11-09 15:03:17,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-09 15:03:17,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-09 15:03:17,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 190 transitions. [2024-11-09 15:03:17,608 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5775075987841946 [2024-11-09 15:03:17,608 INFO L175 Difference]: Start difference. First operand has 118 places, 111 transitions, 762 flow. Second operand 7 states and 190 transitions. [2024-11-09 15:03:17,608 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 124 places, 140 transitions, 1136 flow [2024-11-09 15:03:17,617 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 110 places, 140 transitions, 1075 flow, removed 1 selfloop flow, removed 14 redundant places. [2024-11-09 15:03:17,619 INFO L231 Difference]: Finished difference. Result has 110 places, 110 transitions, 731 flow [2024-11-09 15:03:17,619 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} [2024-11-09 15:03:17,620 INFO L277 CegarLoopForPetriNet]: 47 programPoint places, 63 predicate places. [2024-11-09 15:03:17,621 INFO L471 AbstractCegarLoop]: Abstraction has has 110 places, 110 transitions, 731 flow [2024-11-09 15:03:17,621 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) [2024-11-09 15:03:17,622 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:03:17,622 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 15:03:17,622 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-09 15:03:17,622 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)] === [2024-11-09 15:03:17,622 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:03:17,622 INFO L85 PathProgramCache]: Analyzing trace with hash -1770080767, now seen corresponding path program 2 times [2024-11-09 15:03:17,623 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:03:17,623 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [300229737] [2024-11-09 15:03:17,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:03:17,623 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:03:17,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:03:17,870 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-09 15:03:17,870 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:03:17,870 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [300229737] [2024-11-09 15:03:17,871 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [300229737] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 15:03:17,871 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 15:03:17,871 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 15:03:17,871 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1692231939] [2024-11-09 15:03:17,871 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 15:03:17,871 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 15:03:17,871 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:03:17,872 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 15:03:17,872 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-09 15:03:17,884 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 47 [2024-11-09 15:03:17,884 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) [2024-11-09 15:03:17,885 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:03:17,885 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 47 [2024-11-09 15:03:17,886 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 15:03:18,180 INFO L124 PetriNetUnfolderBase]: 440/1192 cut-off events. [2024-11-09 15:03:18,181 INFO L125 PetriNetUnfolderBase]: For 1600/1606 co-relation queries the response was YES. [2024-11-09 15:03:18,184 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. [2024-11-09 15:03:18,191 INFO L140 encePairwiseOnDemand]: 40/47 looper letters, 101 selfloop transitions, 18 changer transitions 0/134 dead transitions. [2024-11-09 15:03:18,192 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 116 places, 134 transitions, 1092 flow [2024-11-09 15:03:18,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-09 15:03:18,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-09 15:03:18,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 185 transitions. [2024-11-09 15:03:18,193 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5623100303951368 [2024-11-09 15:03:18,193 INFO L175 Difference]: Start difference. First operand has 110 places, 110 transitions, 731 flow. Second operand 7 states and 185 transitions. [2024-11-09 15:03:18,193 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 116 places, 134 transitions, 1092 flow [2024-11-09 15:03:18,201 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 113 places, 134 transitions, 1050 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-09 15:03:18,204 INFO L231 Difference]: Finished difference. Result has 113 places, 109 transitions, 722 flow [2024-11-09 15:03:18,204 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} [2024-11-09 15:03:18,205 INFO L277 CegarLoopForPetriNet]: 47 programPoint places, 66 predicate places. [2024-11-09 15:03:18,206 INFO L471 AbstractCegarLoop]: Abstraction has has 113 places, 109 transitions, 722 flow [2024-11-09 15:03:18,206 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) [2024-11-09 15:03:18,206 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:03:18,206 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 15:03:18,207 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-09 15:03:18,207 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)] === [2024-11-09 15:03:18,207 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:03:18,207 INFO L85 PathProgramCache]: Analyzing trace with hash 1814449730, now seen corresponding path program 1 times [2024-11-09 15:03:18,207 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:03:18,208 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1350651790] [2024-11-09 15:03:18,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:03:18,208 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:03:18,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:03:18,291 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-09 15:03:18,292 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:03:18,292 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1350651790] [2024-11-09 15:03:18,292 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1350651790] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 15:03:18,292 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 15:03:18,292 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 15:03:18,292 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [646091856] [2024-11-09 15:03:18,292 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 15:03:18,293 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 15:03:18,293 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:03:18,293 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 15:03:18,293 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 15:03:18,297 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 47 [2024-11-09 15:03:18,298 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) [2024-11-09 15:03:18,298 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:03:18,298 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 47 [2024-11-09 15:03:18,298 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 15:03:18,581 INFO L124 PetriNetUnfolderBase]: 512/1340 cut-off events. [2024-11-09 15:03:18,581 INFO L125 PetriNetUnfolderBase]: For 1414/1423 co-relation queries the response was YES. [2024-11-09 15:03:18,585 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. [2024-11-09 15:03:18,593 INFO L140 encePairwiseOnDemand]: 41/47 looper letters, 132 selfloop transitions, 6 changer transitions 0/154 dead transitions. [2024-11-09 15:03:18,593 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 116 places, 154 transitions, 1187 flow [2024-11-09 15:03:18,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 15:03:18,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-09 15:03:18,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 136 transitions. [2024-11-09 15:03:18,594 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.723404255319149 [2024-11-09 15:03:18,595 INFO L175 Difference]: Start difference. First operand has 113 places, 109 transitions, 722 flow. Second operand 4 states and 136 transitions. [2024-11-09 15:03:18,595 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 116 places, 154 transitions, 1187 flow [2024-11-09 15:03:18,601 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 114 places, 154 transitions, 1166 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-09 15:03:18,605 INFO L231 Difference]: Finished difference. Result has 116 places, 111 transitions, 740 flow [2024-11-09 15:03:18,606 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} [2024-11-09 15:03:18,606 INFO L277 CegarLoopForPetriNet]: 47 programPoint places, 69 predicate places. [2024-11-09 15:03:18,606 INFO L471 AbstractCegarLoop]: Abstraction has has 116 places, 111 transitions, 740 flow [2024-11-09 15:03:18,606 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) [2024-11-09 15:03:18,606 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:03:18,607 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 15:03:18,607 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-09 15:03:18,607 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)] === [2024-11-09 15:03:18,607 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:03:18,607 INFO L85 PathProgramCache]: Analyzing trace with hash 1132727483, now seen corresponding path program 1 times [2024-11-09 15:03:18,607 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:03:18,607 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [113572886] [2024-11-09 15:03:18,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:03:18,607 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:03:18,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:03:18,685 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-09 15:03:18,686 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:03:18,686 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [113572886] [2024-11-09 15:03:18,686 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [113572886] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 15:03:18,686 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 15:03:18,686 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 15:03:18,687 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1290804249] [2024-11-09 15:03:18,687 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 15:03:18,688 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 15:03:18,688 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:03:18,689 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 15:03:18,689 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 15:03:18,694 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 47 [2024-11-09 15:03:18,695 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) [2024-11-09 15:03:18,695 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:03:18,695 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 47 [2024-11-09 15:03:18,695 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 15:03:18,947 INFO L124 PetriNetUnfolderBase]: 502/1302 cut-off events. [2024-11-09 15:03:18,947 INFO L125 PetriNetUnfolderBase]: For 1823/1840 co-relation queries the response was YES. [2024-11-09 15:03:18,951 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. [2024-11-09 15:03:18,957 INFO L140 encePairwiseOnDemand]: 42/47 looper letters, 125 selfloop transitions, 6 changer transitions 0/147 dead transitions. [2024-11-09 15:03:18,958 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 119 places, 147 transitions, 1202 flow [2024-11-09 15:03:18,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 15:03:18,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-09 15:03:18,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 125 transitions. [2024-11-09 15:03:18,959 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6648936170212766 [2024-11-09 15:03:18,959 INFO L175 Difference]: Start difference. First operand has 116 places, 111 transitions, 740 flow. Second operand 4 states and 125 transitions. [2024-11-09 15:03:18,959 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 119 places, 147 transitions, 1202 flow [2024-11-09 15:03:18,965 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 118 places, 147 transitions, 1192 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-09 15:03:18,967 INFO L231 Difference]: Finished difference. Result has 120 places, 112 transitions, 766 flow [2024-11-09 15:03:18,967 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} [2024-11-09 15:03:18,968 INFO L277 CegarLoopForPetriNet]: 47 programPoint places, 73 predicate places. [2024-11-09 15:03:18,969 INFO L471 AbstractCegarLoop]: Abstraction has has 120 places, 112 transitions, 766 flow [2024-11-09 15:03:18,969 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) [2024-11-09 15:03:18,969 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:03:18,969 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 15:03:18,969 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-09 15:03:18,970 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)] === [2024-11-09 15:03:18,970 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:03:18,970 INFO L85 PathProgramCache]: Analyzing trace with hash 543010746, now seen corresponding path program 1 times [2024-11-09 15:03:18,970 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:03:18,970 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1873722480] [2024-11-09 15:03:18,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:03:18,971 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:03:18,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:03:19,547 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-09 15:03:19,547 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:03:19,547 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1873722480] [2024-11-09 15:03:19,547 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1873722480] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 15:03:19,548 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 15:03:19,548 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-09 15:03:19,548 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [91624088] [2024-11-09 15:03:19,548 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 15:03:19,549 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-09 15:03:19,549 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:03:19,549 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-09 15:03:19,549 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2024-11-09 15:03:19,550 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 47 [2024-11-09 15:03:19,550 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) [2024-11-09 15:03:19,550 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:03:19,550 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 47 [2024-11-09 15:03:19,551 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 15:03:20,052 INFO L124 PetriNetUnfolderBase]: 540/1489 cut-off events. [2024-11-09 15:03:20,053 INFO L125 PetriNetUnfolderBase]: For 2234/2247 co-relation queries the response was YES. [2024-11-09 15:03:20,058 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. [2024-11-09 15:03:20,066 INFO L140 encePairwiseOnDemand]: 36/47 looper letters, 171 selfloop transitions, 18 changer transitions 0/207 dead transitions. [2024-11-09 15:03:20,066 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 127 places, 207 transitions, 1690 flow [2024-11-09 15:03:20,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-09 15:03:20,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-09 15:03:20,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 240 transitions. [2024-11-09 15:03:20,068 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6382978723404256 [2024-11-09 15:03:20,068 INFO L175 Difference]: Start difference. First operand has 120 places, 112 transitions, 766 flow. Second operand 8 states and 240 transitions. [2024-11-09 15:03:20,068 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 127 places, 207 transitions, 1690 flow [2024-11-09 15:03:20,077 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 125 places, 207 transitions, 1658 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-09 15:03:20,079 INFO L231 Difference]: Finished difference. Result has 130 places, 123 transitions, 890 flow [2024-11-09 15:03:20,080 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} [2024-11-09 15:03:20,081 INFO L277 CegarLoopForPetriNet]: 47 programPoint places, 83 predicate places. [2024-11-09 15:03:20,081 INFO L471 AbstractCegarLoop]: Abstraction has has 130 places, 123 transitions, 890 flow [2024-11-09 15:03:20,081 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) [2024-11-09 15:03:20,081 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:03:20,082 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 15:03:20,082 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-09 15:03:20,082 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)] === [2024-11-09 15:03:20,082 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:03:20,082 INFO L85 PathProgramCache]: Analyzing trace with hash 1753571206, now seen corresponding path program 1 times [2024-11-09 15:03:20,082 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:03:20,083 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [702220559] [2024-11-09 15:03:20,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:03:20,083 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:03:20,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:03:20,535 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-09 15:03:20,536 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:03:20,536 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [702220559] [2024-11-09 15:03:20,536 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [702220559] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 15:03:20,536 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 15:03:20,536 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-09 15:03:20,536 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [320517508] [2024-11-09 15:03:20,536 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 15:03:20,537 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-09 15:03:20,537 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:03:20,538 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-09 15:03:20,538 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2024-11-09 15:03:20,538 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 47 [2024-11-09 15:03:20,538 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) [2024-11-09 15:03:20,539 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:03:20,539 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 47 [2024-11-09 15:03:20,539 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 15:03:21,007 INFO L124 PetriNetUnfolderBase]: 586/1597 cut-off events. [2024-11-09 15:03:21,008 INFO L125 PetriNetUnfolderBase]: For 3215/3239 co-relation queries the response was YES. [2024-11-09 15:03:21,013 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. [2024-11-09 15:03:21,026 INFO L140 encePairwiseOnDemand]: 36/47 looper letters, 172 selfloop transitions, 24 changer transitions 0/214 dead transitions. [2024-11-09 15:03:21,027 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 137 places, 214 transitions, 1945 flow [2024-11-09 15:03:21,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-09 15:03:21,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-09 15:03:21,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 225 transitions. [2024-11-09 15:03:21,029 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.598404255319149 [2024-11-09 15:03:21,029 INFO L175 Difference]: Start difference. First operand has 130 places, 123 transitions, 890 flow. Second operand 8 states and 225 transitions. [2024-11-09 15:03:21,030 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 137 places, 214 transitions, 1945 flow [2024-11-09 15:03:21,041 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 135 places, 214 transitions, 1928 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-09 15:03:21,044 INFO L231 Difference]: Finished difference. Result has 140 places, 136 transitions, 1079 flow [2024-11-09 15:03:21,045 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} [2024-11-09 15:03:21,046 INFO L277 CegarLoopForPetriNet]: 47 programPoint places, 93 predicate places. [2024-11-09 15:03:21,047 INFO L471 AbstractCegarLoop]: Abstraction has has 140 places, 136 transitions, 1079 flow [2024-11-09 15:03:21,047 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) [2024-11-09 15:03:21,047 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:03:21,047 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 15:03:21,047 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-09 15:03:21,048 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)] === [2024-11-09 15:03:21,048 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:03:21,049 INFO L85 PathProgramCache]: Analyzing trace with hash -1985880402, now seen corresponding path program 2 times [2024-11-09 15:03:21,049 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:03:21,049 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1781402451] [2024-11-09 15:03:21,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:03:21,049 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:03:21,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:03:21,486 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-09 15:03:21,486 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:03:21,487 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1781402451] [2024-11-09 15:03:21,487 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1781402451] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 15:03:21,487 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 15:03:21,487 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-09 15:03:21,487 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [752744650] [2024-11-09 15:03:21,487 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 15:03:21,487 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-09 15:03:21,487 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:03:21,488 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-09 15:03:21,488 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2024-11-09 15:03:21,488 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 47 [2024-11-09 15:03:21,488 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) [2024-11-09 15:03:21,488 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:03:21,488 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 47 [2024-11-09 15:03:21,488 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 15:03:21,999 INFO L124 PetriNetUnfolderBase]: 635/1721 cut-off events. [2024-11-09 15:03:22,000 INFO L125 PetriNetUnfolderBase]: For 5137/5153 co-relation queries the response was YES. [2024-11-09 15:03:22,009 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. [2024-11-09 15:03:22,021 INFO L140 encePairwiseOnDemand]: 35/47 looper letters, 197 selfloop transitions, 30 changer transitions 0/245 dead transitions. [2024-11-09 15:03:22,022 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 147 places, 245 transitions, 2411 flow [2024-11-09 15:03:22,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-09 15:03:22,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-09 15:03:22,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 241 transitions. [2024-11-09 15:03:22,023 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6409574468085106 [2024-11-09 15:03:22,023 INFO L175 Difference]: Start difference. First operand has 140 places, 136 transitions, 1079 flow. Second operand 8 states and 241 transitions. [2024-11-09 15:03:22,023 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 147 places, 245 transitions, 2411 flow [2024-11-09 15:03:22,041 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 145 places, 245 transitions, 2370 flow, removed 11 selfloop flow, removed 2 redundant places. [2024-11-09 15:03:22,045 INFO L231 Difference]: Finished difference. Result has 149 places, 151 transitions, 1348 flow [2024-11-09 15:03:22,045 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} [2024-11-09 15:03:22,045 INFO L277 CegarLoopForPetriNet]: 47 programPoint places, 102 predicate places. [2024-11-09 15:03:22,046 INFO L471 AbstractCegarLoop]: Abstraction has has 149 places, 151 transitions, 1348 flow [2024-11-09 15:03:22,046 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) [2024-11-09 15:03:22,046 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:03:22,047 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 15:03:22,047 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-09 15:03:22,047 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)] === [2024-11-09 15:03:22,047 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:03:22,047 INFO L85 PathProgramCache]: Analyzing trace with hash -1450198208, now seen corresponding path program 2 times [2024-11-09 15:03:22,048 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:03:22,048 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [786941166] [2024-11-09 15:03:22,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:03:22,048 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:03:22,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:03:22,536 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-09 15:03:22,537 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:03:22,537 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [786941166] [2024-11-09 15:03:22,537 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [786941166] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 15:03:22,537 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 15:03:22,537 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-09 15:03:22,537 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1803247683] [2024-11-09 15:03:22,537 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 15:03:22,538 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-09 15:03:22,538 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:03:22,538 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-09 15:03:22,538 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2024-11-09 15:03:22,539 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 47 [2024-11-09 15:03:22,539 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) [2024-11-09 15:03:22,539 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:03:22,539 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 47 [2024-11-09 15:03:22,539 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 15:03:23,079 INFO L124 PetriNetUnfolderBase]: 684/1840 cut-off events. [2024-11-09 15:03:23,080 INFO L125 PetriNetUnfolderBase]: For 7515/7537 co-relation queries the response was YES. [2024-11-09 15:03:23,087 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. [2024-11-09 15:03:23,094 INFO L140 encePairwiseOnDemand]: 35/47 looper letters, 198 selfloop transitions, 38 changer transitions 0/254 dead transitions. [2024-11-09 15:03:23,095 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 156 places, 254 transitions, 2792 flow [2024-11-09 15:03:23,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-09 15:03:23,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-09 15:03:23,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 231 transitions. [2024-11-09 15:03:23,096 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6143617021276596 [2024-11-09 15:03:23,096 INFO L175 Difference]: Start difference. First operand has 149 places, 151 transitions, 1348 flow. Second operand 8 states and 231 transitions. [2024-11-09 15:03:23,096 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 156 places, 254 transitions, 2792 flow [2024-11-09 15:03:23,116 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 153 places, 254 transitions, 2718 flow, removed 5 selfloop flow, removed 3 redundant places. [2024-11-09 15:03:23,121 INFO L231 Difference]: Finished difference. Result has 157 places, 166 transitions, 1626 flow [2024-11-09 15:03:23,123 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} [2024-11-09 15:03:23,123 INFO L277 CegarLoopForPetriNet]: 47 programPoint places, 110 predicate places. [2024-11-09 15:03:23,123 INFO L471 AbstractCegarLoop]: Abstraction has has 157 places, 166 transitions, 1626 flow [2024-11-09 15:03:23,123 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) [2024-11-09 15:03:23,124 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:03:23,124 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 15:03:23,124 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-09 15:03:23,124 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)] === [2024-11-09 15:03:23,125 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:03:23,125 INFO L85 PathProgramCache]: Analyzing trace with hash 149787254, now seen corresponding path program 3 times [2024-11-09 15:03:23,125 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:03:23,125 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1647297388] [2024-11-09 15:03:23,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:03:23,125 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:03:23,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:03:23,510 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-09 15:03:23,510 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:03:23,510 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1647297388] [2024-11-09 15:03:23,510 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1647297388] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 15:03:23,511 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 15:03:23,511 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-09 15:03:23,511 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1626042448] [2024-11-09 15:03:23,511 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 15:03:23,511 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-09 15:03:23,511 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:03:23,512 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-09 15:03:23,512 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-11-09 15:03:23,512 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 47 [2024-11-09 15:03:23,512 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) [2024-11-09 15:03:23,512 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:03:23,512 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 47 [2024-11-09 15:03:23,513 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 15:03:24,093 INFO L124 PetriNetUnfolderBase]: 751/2032 cut-off events. [2024-11-09 15:03:24,094 INFO L125 PetriNetUnfolderBase]: For 10858/10882 co-relation queries the response was YES. [2024-11-09 15:03:24,105 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. [2024-11-09 15:03:24,119 INFO L140 encePairwiseOnDemand]: 35/47 looper letters, 218 selfloop transitions, 42 changer transitions 0/278 dead transitions. [2024-11-09 15:03:24,119 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 164 places, 278 transitions, 3259 flow [2024-11-09 15:03:24,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-09 15:03:24,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-09 15:03:24,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 241 transitions. [2024-11-09 15:03:24,120 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6409574468085106 [2024-11-09 15:03:24,120 INFO L175 Difference]: Start difference. First operand has 157 places, 166 transitions, 1626 flow. Second operand 8 states and 241 transitions. [2024-11-09 15:03:24,121 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 164 places, 278 transitions, 3259 flow [2024-11-09 15:03:24,145 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 161 places, 278 transitions, 3173 flow, removed 7 selfloop flow, removed 3 redundant places. [2024-11-09 15:03:24,149 INFO L231 Difference]: Finished difference. Result has 166 places, 189 transitions, 2092 flow [2024-11-09 15:03:24,150 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} [2024-11-09 15:03:24,150 INFO L277 CegarLoopForPetriNet]: 47 programPoint places, 119 predicate places. [2024-11-09 15:03:24,150 INFO L471 AbstractCegarLoop]: Abstraction has has 166 places, 189 transitions, 2092 flow [2024-11-09 15:03:24,151 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) [2024-11-09 15:03:24,151 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:03:24,151 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 15:03:24,151 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-09 15:03:24,151 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)] === [2024-11-09 15:03:24,151 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:03:24,152 INFO L85 PathProgramCache]: Analyzing trace with hash 500448102, now seen corresponding path program 3 times [2024-11-09 15:03:24,152 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:03:24,152 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1054414212] [2024-11-09 15:03:24,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:03:24,153 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:03:24,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:03:24,495 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-09 15:03:24,495 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:03:24,495 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1054414212] [2024-11-09 15:03:24,496 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1054414212] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 15:03:24,496 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 15:03:24,496 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-09 15:03:24,496 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1763732711] [2024-11-09 15:03:24,496 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 15:03:24,497 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-09 15:03:24,497 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:03:24,498 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-09 15:03:24,498 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-11-09 15:03:24,498 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 47 [2024-11-09 15:03:24,499 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) [2024-11-09 15:03:24,499 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:03:24,499 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 47 [2024-11-09 15:03:24,499 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 15:03:25,089 INFO L124 PetriNetUnfolderBase]: 783/2122 cut-off events. [2024-11-09 15:03:25,090 INFO L125 PetriNetUnfolderBase]: For 13758/13784 co-relation queries the response was YES. [2024-11-09 15:03:25,097 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. [2024-11-09 15:03:25,106 INFO L140 encePairwiseOnDemand]: 34/47 looper letters, 213 selfloop transitions, 61 changer transitions 0/292 dead transitions. [2024-11-09 15:03:25,107 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 173 places, 292 transitions, 3696 flow [2024-11-09 15:03:25,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-09 15:03:25,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-09 15:03:25,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 237 transitions. [2024-11-09 15:03:25,108 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6303191489361702 [2024-11-09 15:03:25,108 INFO L175 Difference]: Start difference. First operand has 166 places, 189 transitions, 2092 flow. Second operand 8 states and 237 transitions. [2024-11-09 15:03:25,108 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 173 places, 292 transitions, 3696 flow [2024-11-09 15:03:25,147 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 172 places, 292 transitions, 3639 flow, removed 28 selfloop flow, removed 1 redundant places. [2024-11-09 15:03:25,154 INFO L231 Difference]: Finished difference. Result has 177 places, 215 transitions, 2705 flow [2024-11-09 15:03:25,154 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} [2024-11-09 15:03:25,155 INFO L277 CegarLoopForPetriNet]: 47 programPoint places, 130 predicate places. [2024-11-09 15:03:25,155 INFO L471 AbstractCegarLoop]: Abstraction has has 177 places, 215 transitions, 2705 flow [2024-11-09 15:03:25,156 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) [2024-11-09 15:03:25,156 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:03:25,156 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 15:03:25,156 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-09 15:03:25,156 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)] === [2024-11-09 15:03:25,157 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:03:25,157 INFO L85 PathProgramCache]: Analyzing trace with hash -1974924906, now seen corresponding path program 4 times [2024-11-09 15:03:25,157 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:03:25,157 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1972602340] [2024-11-09 15:03:25,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:03:25,157 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:03:25,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:03:25,495 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-09 15:03:25,495 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:03:25,495 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1972602340] [2024-11-09 15:03:25,495 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1972602340] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 15:03:25,495 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 15:03:25,496 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-09 15:03:25,496 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1048092865] [2024-11-09 15:03:25,496 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 15:03:25,496 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-09 15:03:25,496 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:03:25,497 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-09 15:03:25,497 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-11-09 15:03:25,497 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 47 [2024-11-09 15:03:25,498 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) [2024-11-09 15:03:25,498 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:03:25,498 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 47 [2024-11-09 15:03:25,498 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 15:03:26,193 INFO L124 PetriNetUnfolderBase]: 783/2142 cut-off events. [2024-11-09 15:03:26,193 INFO L125 PetriNetUnfolderBase]: For 17463/17486 co-relation queries the response was YES. [2024-11-09 15:03:26,207 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. [2024-11-09 15:03:26,218 INFO L140 encePairwiseOnDemand]: 35/47 looper letters, 222 selfloop transitions, 62 changer transitions 0/302 dead transitions. [2024-11-09 15:03:26,218 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 184 places, 302 transitions, 4178 flow [2024-11-09 15:03:26,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-09 15:03:26,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-09 15:03:26,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 236 transitions. [2024-11-09 15:03:26,220 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6276595744680851 [2024-11-09 15:03:26,220 INFO L175 Difference]: Start difference. First operand has 177 places, 215 transitions, 2705 flow. Second operand 8 states and 236 transitions. [2024-11-09 15:03:26,220 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 184 places, 302 transitions, 4178 flow [2024-11-09 15:03:26,263 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 183 places, 302 transitions, 4107 flow, removed 35 selfloop flow, removed 1 redundant places. [2024-11-09 15:03:26,268 INFO L231 Difference]: Finished difference. Result has 187 places, 228 transitions, 3088 flow [2024-11-09 15:03:26,268 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} [2024-11-09 15:03:26,268 INFO L277 CegarLoopForPetriNet]: 47 programPoint places, 140 predicate places. [2024-11-09 15:03:26,269 INFO L471 AbstractCegarLoop]: Abstraction has has 187 places, 228 transitions, 3088 flow [2024-11-09 15:03:26,269 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) [2024-11-09 15:03:26,269 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:03:26,269 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 15:03:26,269 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-09 15:03:26,269 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)] === [2024-11-09 15:03:26,270 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:03:26,270 INFO L85 PathProgramCache]: Analyzing trace with hash 1695675266, now seen corresponding path program 5 times [2024-11-09 15:03:26,270 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:03:26,270 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1465631034] [2024-11-09 15:03:26,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:03:26,270 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:03:26,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:03:26,607 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-09 15:03:26,607 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:03:26,608 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1465631034] [2024-11-09 15:03:26,608 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1465631034] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 15:03:26,608 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 15:03:26,608 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-09 15:03:26,608 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2088176214] [2024-11-09 15:03:26,608 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 15:03:26,609 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-09 15:03:26,609 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:03:26,610 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-09 15:03:26,610 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-09 15:03:26,610 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 47 [2024-11-09 15:03:26,610 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) [2024-11-09 15:03:26,610 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:03:26,611 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 47 [2024-11-09 15:03:26,611 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 15:03:27,277 INFO L124 PetriNetUnfolderBase]: 793/2179 cut-off events. [2024-11-09 15:03:27,278 INFO L125 PetriNetUnfolderBase]: For 19094/19133 co-relation queries the response was YES. [2024-11-09 15:03:27,292 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. [2024-11-09 15:03:27,304 INFO L140 encePairwiseOnDemand]: 35/47 looper letters, 243 selfloop transitions, 100 changer transitions 0/361 dead transitions. [2024-11-09 15:03:27,305 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 199 places, 361 transitions, 5047 flow [2024-11-09 15:03:27,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-09 15:03:27,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2024-11-09 15:03:27,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 363 transitions. [2024-11-09 15:03:27,306 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5941080196399345 [2024-11-09 15:03:27,306 INFO L175 Difference]: Start difference. First operand has 187 places, 228 transitions, 3088 flow. Second operand 13 states and 363 transitions. [2024-11-09 15:03:27,306 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 199 places, 361 transitions, 5047 flow [2024-11-09 15:03:27,361 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 196 places, 361 transitions, 4877 flow, removed 53 selfloop flow, removed 3 redundant places. [2024-11-09 15:03:27,370 INFO L231 Difference]: Finished difference. Result has 200 places, 246 transitions, 3484 flow [2024-11-09 15:03:27,370 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} [2024-11-09 15:03:27,371 INFO L277 CegarLoopForPetriNet]: 47 programPoint places, 153 predicate places. [2024-11-09 15:03:27,371 INFO L471 AbstractCegarLoop]: Abstraction has has 200 places, 246 transitions, 3484 flow [2024-11-09 15:03:27,371 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) [2024-11-09 15:03:27,371 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:03:27,372 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 15:03:27,372 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-09 15:03:27,372 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)] === [2024-11-09 15:03:27,372 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:03:27,372 INFO L85 PathProgramCache]: Analyzing trace with hash -1539861036, now seen corresponding path program 6 times [2024-11-09 15:03:27,373 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:03:27,373 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2091475695] [2024-11-09 15:03:27,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:03:27,373 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:03:27,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:03:27,702 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-09 15:03:27,702 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:03:27,702 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2091475695] [2024-11-09 15:03:27,702 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2091475695] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 15:03:27,702 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 15:03:27,703 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-09 15:03:27,703 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1668553580] [2024-11-09 15:03:27,703 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 15:03:27,703 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-09 15:03:27,704 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:03:27,704 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-09 15:03:27,704 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-09 15:03:27,704 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 47 [2024-11-09 15:03:27,705 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) [2024-11-09 15:03:27,705 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:03:27,705 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 47 [2024-11-09 15:03:27,705 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 15:03:28,411 INFO L124 PetriNetUnfolderBase]: 764/2113 cut-off events. [2024-11-09 15:03:28,411 INFO L125 PetriNetUnfolderBase]: For 19787/19819 co-relation queries the response was YES. [2024-11-09 15:03:28,423 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. [2024-11-09 15:03:28,432 INFO L140 encePairwiseOnDemand]: 34/47 looper letters, 250 selfloop transitions, 99 changer transitions 0/367 dead transitions. [2024-11-09 15:03:28,432 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 211 places, 367 transitions, 5295 flow [2024-11-09 15:03:28,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-09 15:03:28,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2024-11-09 15:03:28,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 349 transitions. [2024-11-09 15:03:28,434 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6187943262411347 [2024-11-09 15:03:28,434 INFO L175 Difference]: Start difference. First operand has 200 places, 246 transitions, 3484 flow. Second operand 12 states and 349 transitions. [2024-11-09 15:03:28,434 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 211 places, 367 transitions, 5295 flow [2024-11-09 15:03:28,492 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 204 places, 367 transitions, 4993 flow, removed 67 selfloop flow, removed 7 redundant places. [2024-11-09 15:03:28,497 INFO L231 Difference]: Finished difference. Result has 207 places, 255 transitions, 3659 flow [2024-11-09 15:03:28,498 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} [2024-11-09 15:03:28,498 INFO L277 CegarLoopForPetriNet]: 47 programPoint places, 160 predicate places. [2024-11-09 15:03:28,498 INFO L471 AbstractCegarLoop]: Abstraction has has 207 places, 255 transitions, 3659 flow [2024-11-09 15:03:28,499 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) [2024-11-09 15:03:28,499 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:03:28,499 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 15:03:28,499 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-09 15:03:28,499 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)] === [2024-11-09 15:03:28,499 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:03:28,499 INFO L85 PathProgramCache]: Analyzing trace with hash -1526154946, now seen corresponding path program 4 times [2024-11-09 15:03:28,499 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:03:28,500 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2146133960] [2024-11-09 15:03:28,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:03:28,500 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:03:28,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:03:28,794 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-09 15:03:28,794 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:03:28,794 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2146133960] [2024-11-09 15:03:28,794 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2146133960] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 15:03:28,795 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 15:03:28,795 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-09 15:03:28,795 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [812754785] [2024-11-09 15:03:28,795 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 15:03:28,795 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-09 15:03:28,795 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:03:28,796 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-09 15:03:28,796 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-11-09 15:03:28,796 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 47 [2024-11-09 15:03:28,796 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) [2024-11-09 15:03:28,797 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:03:28,797 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 47 [2024-11-09 15:03:28,797 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 15:03:29,278 INFO L124 PetriNetUnfolderBase]: 731/2016 cut-off events. [2024-11-09 15:03:29,278 INFO L125 PetriNetUnfolderBase]: For 18395/18430 co-relation queries the response was YES. [2024-11-09 15:03:29,284 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. [2024-11-09 15:03:29,292 INFO L140 encePairwiseOnDemand]: 34/47 looper letters, 214 selfloop transitions, 81 changer transitions 0/313 dead transitions. [2024-11-09 15:03:29,292 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 213 places, 313 transitions, 4770 flow [2024-11-09 15:03:29,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-09 15:03:29,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-09 15:03:29,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 229 transitions. [2024-11-09 15:03:29,293 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6090425531914894 [2024-11-09 15:03:29,293 INFO L175 Difference]: Start difference. First operand has 207 places, 255 transitions, 3659 flow. Second operand 8 states and 229 transitions. [2024-11-09 15:03:29,293 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 213 places, 313 transitions, 4770 flow [2024-11-09 15:03:29,346 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 203 places, 313 transitions, 4592 flow, removed 17 selfloop flow, removed 10 redundant places. [2024-11-09 15:03:29,351 INFO L231 Difference]: Finished difference. Result has 206 places, 261 transitions, 3797 flow [2024-11-09 15:03:29,352 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} [2024-11-09 15:03:29,352 INFO L277 CegarLoopForPetriNet]: 47 programPoint places, 159 predicate places. [2024-11-09 15:03:29,352 INFO L471 AbstractCegarLoop]: Abstraction has has 206 places, 261 transitions, 3797 flow [2024-11-09 15:03:29,353 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) [2024-11-09 15:03:29,353 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:03:29,353 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 15:03:29,353 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-09 15:03:29,353 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)] === [2024-11-09 15:03:29,353 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:03:29,353 INFO L85 PathProgramCache]: Analyzing trace with hash -1202480660, now seen corresponding path program 5 times [2024-11-09 15:03:29,354 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:03:29,354 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1037291614] [2024-11-09 15:03:29,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:03:29,354 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:03:29,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:03:29,666 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-09 15:03:29,666 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:03:29,666 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1037291614] [2024-11-09 15:03:29,667 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1037291614] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 15:03:29,667 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 15:03:29,667 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-09 15:03:29,667 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1535763301] [2024-11-09 15:03:29,667 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 15:03:29,667 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-09 15:03:29,668 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:03:29,668 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-09 15:03:29,669 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-09 15:03:29,669 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 47 [2024-11-09 15:03:29,670 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) [2024-11-09 15:03:29,670 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:03:29,670 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 47 [2024-11-09 15:03:29,671 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 15:03:30,457 INFO L124 PetriNetUnfolderBase]: 793/2202 cut-off events. [2024-11-09 15:03:30,457 INFO L125 PetriNetUnfolderBase]: For 18865/18928 co-relation queries the response was YES. [2024-11-09 15:03:30,467 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. [2024-11-09 15:03:30,474 INFO L140 encePairwiseOnDemand]: 33/47 looper letters, 307 selfloop transitions, 94 changer transitions 0/419 dead transitions. [2024-11-09 15:03:30,474 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 217 places, 419 transitions, 6021 flow [2024-11-09 15:03:30,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-09 15:03:30,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2024-11-09 15:03:30,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 371 transitions. [2024-11-09 15:03:30,475 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6578014184397163 [2024-11-09 15:03:30,476 INFO L175 Difference]: Start difference. First operand has 206 places, 261 transitions, 3797 flow. Second operand 12 states and 371 transitions. [2024-11-09 15:03:30,476 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 217 places, 419 transitions, 6021 flow [2024-11-09 15:03:30,529 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 213 places, 419 transitions, 5837 flow, removed 12 selfloop flow, removed 4 redundant places. [2024-11-09 15:03:30,533 INFO L231 Difference]: Finished difference. Result has 218 places, 284 transitions, 4248 flow [2024-11-09 15:03:30,534 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} [2024-11-09 15:03:30,534 INFO L277 CegarLoopForPetriNet]: 47 programPoint places, 171 predicate places. [2024-11-09 15:03:30,534 INFO L471 AbstractCegarLoop]: Abstraction has has 218 places, 284 transitions, 4248 flow [2024-11-09 15:03:30,534 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) [2024-11-09 15:03:30,534 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:03:30,534 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 15:03:30,535 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-09 15:03:30,535 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)] === [2024-11-09 15:03:30,535 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:03:30,535 INFO L85 PathProgramCache]: Analyzing trace with hash 617708274, now seen corresponding path program 6 times [2024-11-09 15:03:30,535 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:03:30,535 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1083064610] [2024-11-09 15:03:30,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:03:30,536 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:03:30,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:03:30,862 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-09 15:03:30,862 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:03:30,863 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1083064610] [2024-11-09 15:03:30,863 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1083064610] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 15:03:30,863 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 15:03:30,863 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-09 15:03:30,863 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [520014058] [2024-11-09 15:03:30,863 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 15:03:30,864 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-09 15:03:30,864 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:03:30,865 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-09 15:03:30,865 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-09 15:03:30,866 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 47 [2024-11-09 15:03:30,866 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) [2024-11-09 15:03:30,866 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:03:30,866 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 47 [2024-11-09 15:03:30,867 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 15:03:31,617 INFO L124 PetriNetUnfolderBase]: 793/2221 cut-off events. [2024-11-09 15:03:31,617 INFO L125 PetriNetUnfolderBase]: For 20966/21004 co-relation queries the response was YES. [2024-11-09 15:03:31,628 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. [2024-11-09 15:03:31,635 INFO L140 encePairwiseOnDemand]: 34/47 looper letters, 284 selfloop transitions, 112 changer transitions 0/414 dead transitions. [2024-11-09 15:03:31,635 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 230 places, 414 transitions, 6249 flow [2024-11-09 15:03:31,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-09 15:03:31,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2024-11-09 15:03:31,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 378 transitions. [2024-11-09 15:03:31,637 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.618657937806874 [2024-11-09 15:03:31,637 INFO L175 Difference]: Start difference. First operand has 218 places, 284 transitions, 4248 flow. Second operand 13 states and 378 transitions. [2024-11-09 15:03:31,637 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 230 places, 414 transitions, 6249 flow [2024-11-09 15:03:31,698 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 225 places, 414 transitions, 6017 flow, removed 47 selfloop flow, removed 5 redundant places. [2024-11-09 15:03:31,704 INFO L231 Difference]: Finished difference. Result has 229 places, 306 transitions, 4756 flow [2024-11-09 15:03:31,705 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} [2024-11-09 15:03:31,705 INFO L277 CegarLoopForPetriNet]: 47 programPoint places, 182 predicate places. [2024-11-09 15:03:31,705 INFO L471 AbstractCegarLoop]: Abstraction has has 229 places, 306 transitions, 4756 flow [2024-11-09 15:03:31,705 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) [2024-11-09 15:03:31,705 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:03:31,705 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 15:03:31,706 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-09 15:03:31,706 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)] === [2024-11-09 15:03:31,706 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:03:31,706 INFO L85 PathProgramCache]: Analyzing trace with hash 563595488, now seen corresponding path program 7 times [2024-11-09 15:03:31,706 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:03:31,706 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1278461363] [2024-11-09 15:03:31,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:03:31,706 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:03:31,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:03:32,041 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-09 15:03:32,041 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:03:32,042 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1278461363] [2024-11-09 15:03:32,042 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1278461363] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 15:03:32,042 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 15:03:32,042 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-09 15:03:32,042 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2003657462] [2024-11-09 15:03:32,042 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 15:03:32,043 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-09 15:03:32,043 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:03:32,043 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-09 15:03:32,043 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2024-11-09 15:03:32,043 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 47 [2024-11-09 15:03:32,044 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) [2024-11-09 15:03:32,044 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:03:32,044 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 47 [2024-11-09 15:03:32,044 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 15:03:32,676 INFO L124 PetriNetUnfolderBase]: 764/2161 cut-off events. [2024-11-09 15:03:32,676 INFO L125 PetriNetUnfolderBase]: For 21415/21447 co-relation queries the response was YES. [2024-11-09 15:03:32,687 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. [2024-11-09 15:03:32,693 INFO L140 encePairwiseOnDemand]: 33/47 looper letters, 283 selfloop transitions, 115 changer transitions 0/416 dead transitions. [2024-11-09 15:03:32,694 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 240 places, 416 transitions, 6441 flow [2024-11-09 15:03:32,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-09 15:03:32,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2024-11-09 15:03:32,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 362 transitions. [2024-11-09 15:03:32,695 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6418439716312057 [2024-11-09 15:03:32,695 INFO L175 Difference]: Start difference. First operand has 229 places, 306 transitions, 4756 flow. Second operand 12 states and 362 transitions. [2024-11-09 15:03:32,695 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 240 places, 416 transitions, 6441 flow [2024-11-09 15:03:32,744 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 236 places, 416 transitions, 6211 flow, removed 82 selfloop flow, removed 4 redundant places. [2024-11-09 15:03:32,748 INFO L231 Difference]: Finished difference. Result has 239 places, 315 transitions, 5029 flow [2024-11-09 15:03:32,748 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} [2024-11-09 15:03:32,749 INFO L277 CegarLoopForPetriNet]: 47 programPoint places, 192 predicate places. [2024-11-09 15:03:32,749 INFO L471 AbstractCegarLoop]: Abstraction has has 239 places, 315 transitions, 5029 flow [2024-11-09 15:03:32,750 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) [2024-11-09 15:03:32,750 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:03:32,750 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 15:03:32,750 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-11-09 15:03:32,750 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)] === [2024-11-09 15:03:32,750 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:03:32,750 INFO L85 PathProgramCache]: Analyzing trace with hash 1621907108, now seen corresponding path program 7 times [2024-11-09 15:03:32,750 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:03:32,750 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1623288642] [2024-11-09 15:03:32,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:03:32,751 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:03:32,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:03:33,073 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-09 15:03:33,074 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:03:33,074 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1623288642] [2024-11-09 15:03:33,075 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1623288642] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 15:03:33,075 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 15:03:33,075 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-09 15:03:33,075 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [31845143] [2024-11-09 15:03:33,075 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 15:03:33,076 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-09 15:03:33,076 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:03:33,076 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-09 15:03:33,076 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-11-09 15:03:33,077 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 47 [2024-11-09 15:03:33,077 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) [2024-11-09 15:03:33,077 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:03:33,077 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 47 [2024-11-09 15:03:33,077 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 15:03:33,655 INFO L124 PetriNetUnfolderBase]: 658/1887 cut-off events. [2024-11-09 15:03:33,656 INFO L125 PetriNetUnfolderBase]: For 20241/20275 co-relation queries the response was YES. [2024-11-09 15:03:33,666 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. [2024-11-09 15:03:33,672 INFO L140 encePairwiseOnDemand]: 34/47 looper letters, 238 selfloop transitions, 101 changer transitions 0/357 dead transitions. [2024-11-09 15:03:33,672 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 243 places, 357 transitions, 5955 flow [2024-11-09 15:03:33,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-09 15:03:33,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-09 15:03:33,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 239 transitions. [2024-11-09 15:03:33,674 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6356382978723404 [2024-11-09 15:03:33,674 INFO L175 Difference]: Start difference. First operand has 239 places, 315 transitions, 5029 flow. Second operand 8 states and 239 transitions. [2024-11-09 15:03:33,674 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 243 places, 357 transitions, 5955 flow [2024-11-09 15:03:33,723 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 232 places, 357 transitions, 5751 flow, removed 15 selfloop flow, removed 11 redundant places. [2024-11-09 15:03:33,729 INFO L231 Difference]: Finished difference. Result has 235 places, 307 transitions, 5046 flow [2024-11-09 15:03:33,729 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} [2024-11-09 15:03:33,729 INFO L277 CegarLoopForPetriNet]: 47 programPoint places, 188 predicate places. [2024-11-09 15:03:33,730 INFO L471 AbstractCegarLoop]: Abstraction has has 235 places, 307 transitions, 5046 flow [2024-11-09 15:03:33,730 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) [2024-11-09 15:03:33,730 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:03:33,730 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 15:03:33,730 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-11-09 15:03:33,730 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)] === [2024-11-09 15:03:33,730 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:03:33,731 INFO L85 PathProgramCache]: Analyzing trace with hash -2062484222, now seen corresponding path program 1 times [2024-11-09 15:03:33,731 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:03:33,731 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1736748284] [2024-11-09 15:03:33,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:03:33,731 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:03:33,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:03:34,125 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-09 15:03:34,125 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:03:34,126 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1736748284] [2024-11-09 15:03:34,126 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1736748284] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 15:03:34,126 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 15:03:34,126 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-09 15:03:34,126 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [155973736] [2024-11-09 15:03:34,126 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 15:03:34,127 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-09 15:03:34,127 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:03:34,127 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-09 15:03:34,127 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2024-11-09 15:03:34,155 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 47 [2024-11-09 15:03:34,155 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) [2024-11-09 15:03:34,156 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:03:34,156 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 47 [2024-11-09 15:03:34,156 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 15:03:35,354 INFO L124 PetriNetUnfolderBase]: 1220/2924 cut-off events. [2024-11-09 15:03:35,354 INFO L125 PetriNetUnfolderBase]: For 27598/27626 co-relation queries the response was YES. [2024-11-09 15:03:35,370 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. [2024-11-09 15:03:35,386 INFO L140 encePairwiseOnDemand]: 32/47 looper letters, 313 selfloop transitions, 146 changer transitions 0/470 dead transitions. [2024-11-09 15:03:35,386 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 252 places, 470 transitions, 7371 flow [2024-11-09 15:03:35,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-09 15:03:35,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2024-11-09 15:03:35,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 425 transitions. [2024-11-09 15:03:35,388 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5023640661938534 [2024-11-09 15:03:35,388 INFO L175 Difference]: Start difference. First operand has 235 places, 307 transitions, 5046 flow. Second operand 18 states and 425 transitions. [2024-11-09 15:03:35,388 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 252 places, 470 transitions, 7371 flow [2024-11-09 15:03:35,477 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 248 places, 470 transitions, 7139 flow, removed 16 selfloop flow, removed 4 redundant places. [2024-11-09 15:03:35,483 INFO L231 Difference]: Finished difference. Result has 260 places, 355 transitions, 6089 flow [2024-11-09 15:03:35,483 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} [2024-11-09 15:03:35,484 INFO L277 CegarLoopForPetriNet]: 47 programPoint places, 213 predicate places. [2024-11-09 15:03:35,484 INFO L471 AbstractCegarLoop]: Abstraction has has 260 places, 355 transitions, 6089 flow [2024-11-09 15:03:35,484 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) [2024-11-09 15:03:35,484 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:03:35,484 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 15:03:35,484 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-11-09 15:03:35,484 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)] === [2024-11-09 15:03:35,485 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:03:35,485 INFO L85 PathProgramCache]: Analyzing trace with hash 509382200, now seen corresponding path program 2 times [2024-11-09 15:03:35,485 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:03:35,485 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [374284375] [2024-11-09 15:03:35,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:03:35,486 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:03:35,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:03:36,001 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-09 15:03:36,001 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:03:36,002 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [374284375] [2024-11-09 15:03:36,002 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [374284375] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 15:03:36,002 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 15:03:36,002 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-09 15:03:36,002 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2122527795] [2024-11-09 15:03:36,002 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 15:03:36,003 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-09 15:03:36,003 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:03:36,003 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-09 15:03:36,004 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2024-11-09 15:03:36,045 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 47 [2024-11-09 15:03:36,046 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) [2024-11-09 15:03:36,046 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:03:36,046 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 47 [2024-11-09 15:03:36,046 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 15:03:37,054 INFO L124 PetriNetUnfolderBase]: 1291/3121 cut-off events. [2024-11-09 15:03:37,054 INFO L125 PetriNetUnfolderBase]: For 37704/37724 co-relation queries the response was YES. [2024-11-09 15:03:37,075 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. [2024-11-09 15:03:37,088 INFO L140 encePairwiseOnDemand]: 34/47 looper letters, 401 selfloop transitions, 82 changer transitions 0/496 dead transitions. [2024-11-09 15:03:37,088 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 272 places, 496 transitions, 8882 flow [2024-11-09 15:03:37,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-09 15:03:37,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2024-11-09 15:03:37,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 306 transitions. [2024-11-09 15:03:37,089 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5008183306055647 [2024-11-09 15:03:37,089 INFO L175 Difference]: Start difference. First operand has 260 places, 355 transitions, 6089 flow. Second operand 13 states and 306 transitions. [2024-11-09 15:03:37,089 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 272 places, 496 transitions, 8882 flow [2024-11-09 15:03:37,196 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 270 places, 496 transitions, 8724 flow, removed 16 selfloop flow, removed 2 redundant places. [2024-11-09 15:03:37,277 INFO L231 Difference]: Finished difference. Result has 278 places, 409 transitions, 7080 flow [2024-11-09 15:03:37,277 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} [2024-11-09 15:03:37,278 INFO L277 CegarLoopForPetriNet]: 47 programPoint places, 231 predicate places. [2024-11-09 15:03:37,278 INFO L471 AbstractCegarLoop]: Abstraction has has 278 places, 409 transitions, 7080 flow [2024-11-09 15:03:37,278 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) [2024-11-09 15:03:37,278 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:03:37,278 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 15:03:37,278 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-11-09 15:03:37,279 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)] === [2024-11-09 15:03:37,279 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:03:37,279 INFO L85 PathProgramCache]: Analyzing trace with hash 1756135550, now seen corresponding path program 3 times [2024-11-09 15:03:37,279 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:03:37,279 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [665794967] [2024-11-09 15:03:37,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:03:37,279 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:03:37,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:03:37,620 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-09 15:03:37,620 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:03:37,620 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [665794967] [2024-11-09 15:03:37,621 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [665794967] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 15:03:37,621 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 15:03:37,621 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-09 15:03:37,622 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1962092979] [2024-11-09 15:03:37,622 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 15:03:37,622 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-09 15:03:37,622 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:03:37,623 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-09 15:03:37,623 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2024-11-09 15:03:37,637 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 47 [2024-11-09 15:03:37,638 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) [2024-11-09 15:03:37,638 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:03:37,638 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 47 [2024-11-09 15:03:37,638 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 15:03:38,946 INFO L124 PetriNetUnfolderBase]: 1544/3596 cut-off events. [2024-11-09 15:03:38,946 INFO L125 PetriNetUnfolderBase]: For 50260/50294 co-relation queries the response was YES. [2024-11-09 15:03:38,965 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. [2024-11-09 15:03:38,981 INFO L140 encePairwiseOnDemand]: 32/47 looper letters, 373 selfloop transitions, 194 changer transitions 0/578 dead transitions. [2024-11-09 15:03:38,981 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 296 places, 578 transitions, 10111 flow [2024-11-09 15:03:38,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-09 15:03:38,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2024-11-09 15:03:38,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 444 transitions. [2024-11-09 15:03:38,982 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.49720044792833146 [2024-11-09 15:03:38,983 INFO L175 Difference]: Start difference. First operand has 278 places, 409 transitions, 7080 flow. Second operand 19 states and 444 transitions. [2024-11-09 15:03:38,983 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 296 places, 578 transitions, 10111 flow [2024-11-09 15:03:39,147 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 295 places, 578 transitions, 10066 flow, removed 15 selfloop flow, removed 1 redundant places. [2024-11-09 15:03:39,154 INFO L231 Difference]: Finished difference. Result has 307 places, 462 transitions, 8681 flow [2024-11-09 15:03:39,155 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} [2024-11-09 15:03:39,155 INFO L277 CegarLoopForPetriNet]: 47 programPoint places, 260 predicate places. [2024-11-09 15:03:39,155 INFO L471 AbstractCegarLoop]: Abstraction has has 307 places, 462 transitions, 8681 flow [2024-11-09 15:03:39,155 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) [2024-11-09 15:03:39,156 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:03:39,156 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 15:03:39,156 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-11-09 15:03:39,156 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)] === [2024-11-09 15:03:39,156 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:03:39,156 INFO L85 PathProgramCache]: Analyzing trace with hash -403979112, now seen corresponding path program 1 times [2024-11-09 15:03:39,156 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:03:39,156 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2070331194] [2024-11-09 15:03:39,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:03:39,157 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:03:39,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:03:39,447 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-09 15:03:39,448 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:03:39,448 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2070331194] [2024-11-09 15:03:39,448 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2070331194] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 15:03:39,448 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 15:03:39,448 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-09 15:03:39,448 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1550327334] [2024-11-09 15:03:39,448 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 15:03:39,448 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-09 15:03:39,449 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:03:39,449 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-09 15:03:39,449 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2024-11-09 15:03:39,469 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 47 [2024-11-09 15:03:39,469 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) [2024-11-09 15:03:39,469 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:03:39,469 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 47 [2024-11-09 15:03:39,469 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 15:03:40,968 INFO L124 PetriNetUnfolderBase]: 1706/3874 cut-off events. [2024-11-09 15:03:40,968 INFO L125 PetriNetUnfolderBase]: For 65566/65629 co-relation queries the response was YES. [2024-11-09 15:03:40,996 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. [2024-11-09 15:03:41,016 INFO L140 encePairwiseOnDemand]: 32/47 looper letters, 430 selfloop transitions, 197 changer transitions 0/640 dead transitions. [2024-11-09 15:03:41,017 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 322 places, 640 transitions, 11837 flow [2024-11-09 15:03:41,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-09 15:03:41,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2024-11-09 15:03:41,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 409 transitions. [2024-11-09 15:03:41,018 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5438829787234043 [2024-11-09 15:03:41,018 INFO L175 Difference]: Start difference. First operand has 307 places, 462 transitions, 8681 flow. Second operand 16 states and 409 transitions. [2024-11-09 15:03:41,018 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 322 places, 640 transitions, 11837 flow [2024-11-09 15:03:41,377 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 318 places, 640 transitions, 11521 flow, removed 85 selfloop flow, removed 4 redundant places. [2024-11-09 15:03:41,386 INFO L231 Difference]: Finished difference. Result has 327 places, 488 transitions, 9382 flow [2024-11-09 15:03:41,386 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} [2024-11-09 15:03:41,387 INFO L277 CegarLoopForPetriNet]: 47 programPoint places, 280 predicate places. [2024-11-09 15:03:41,387 INFO L471 AbstractCegarLoop]: Abstraction has has 327 places, 488 transitions, 9382 flow [2024-11-09 15:03:41,387 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) [2024-11-09 15:03:41,387 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:03:41,387 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 15:03:41,387 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2024-11-09 15:03:41,387 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)] === [2024-11-09 15:03:41,388 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:03:41,388 INFO L85 PathProgramCache]: Analyzing trace with hash 1282057256, now seen corresponding path program 4 times [2024-11-09 15:03:41,388 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:03:41,388 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1572421868] [2024-11-09 15:03:41,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:03:41,388 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:03:41,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:03:41,939 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-09 15:03:41,940 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:03:41,940 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1572421868] [2024-11-09 15:03:41,940 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1572421868] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 15:03:41,940 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 15:03:41,941 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-09 15:03:41,941 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1312391503] [2024-11-09 15:03:41,941 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 15:03:41,941 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-09 15:03:41,942 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:03:41,942 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-09 15:03:41,942 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2024-11-09 15:03:41,991 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 47 [2024-11-09 15:03:41,992 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) [2024-11-09 15:03:41,992 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:03:41,992 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 47 [2024-11-09 15:03:41,992 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 15:03:43,558 INFO L124 PetriNetUnfolderBase]: 1761/4044 cut-off events. [2024-11-09 15:03:43,558 INFO L125 PetriNetUnfolderBase]: For 80098/80151 co-relation queries the response was YES. [2024-11-09 15:03:43,584 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. [2024-11-09 15:03:43,606 INFO L140 encePairwiseOnDemand]: 34/47 looper letters, 514 selfloop transitions, 103 changer transitions 0/632 dead transitions. [2024-11-09 15:03:43,606 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 339 places, 632 transitions, 12923 flow [2024-11-09 15:03:43,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-09 15:03:43,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2024-11-09 15:03:43,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 301 transitions. [2024-11-09 15:03:43,608 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.49263502454991814 [2024-11-09 15:03:43,608 INFO L175 Difference]: Start difference. First operand has 327 places, 488 transitions, 9382 flow. Second operand 13 states and 301 transitions. [2024-11-09 15:03:43,608 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 339 places, 632 transitions, 12923 flow [2024-11-09 15:03:43,939 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 335 places, 632 transitions, 12620 flow, removed 28 selfloop flow, removed 4 redundant places. [2024-11-09 15:03:43,950 INFO L231 Difference]: Finished difference. Result has 343 places, 540 transitions, 10603 flow [2024-11-09 15:03:43,950 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} [2024-11-09 15:03:43,951 INFO L277 CegarLoopForPetriNet]: 47 programPoint places, 296 predicate places. [2024-11-09 15:03:43,951 INFO L471 AbstractCegarLoop]: Abstraction has has 343 places, 540 transitions, 10603 flow [2024-11-09 15:03:43,951 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) [2024-11-09 15:03:43,951 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:03:43,951 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 15:03:43,952 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2024-11-09 15:03:43,952 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)] === [2024-11-09 15:03:43,952 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:03:43,952 INFO L85 PathProgramCache]: Analyzing trace with hash -712459620, now seen corresponding path program 5 times [2024-11-09 15:03:43,952 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:03:43,952 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1576303858] [2024-11-09 15:03:43,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:03:43,956 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:03:43,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:03:44,339 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-09 15:03:44,339 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:03:44,339 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1576303858] [2024-11-09 15:03:44,340 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1576303858] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 15:03:44,340 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 15:03:44,340 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-09 15:03:44,340 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [466172554] [2024-11-09 15:03:44,340 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 15:03:44,341 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-09 15:03:44,341 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:03:44,341 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-09 15:03:44,341 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2024-11-09 15:03:44,360 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 47 [2024-11-09 15:03:44,361 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) [2024-11-09 15:03:44,361 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:03:44,361 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 47 [2024-11-09 15:03:44,361 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 15:03:46,222 INFO L124 PetriNetUnfolderBase]: 2021/4549 cut-off events. [2024-11-09 15:03:46,222 INFO L125 PetriNetUnfolderBase]: For 101577/101646 co-relation queries the response was YES. [2024-11-09 15:03:46,250 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. [2024-11-09 15:03:46,268 INFO L140 encePairwiseOnDemand]: 32/47 looper letters, 531 selfloop transitions, 150 changer transitions 0/693 dead transitions. [2024-11-09 15:03:46,268 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 361 places, 693 transitions, 13997 flow [2024-11-09 15:03:46,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-09 15:03:46,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2024-11-09 15:03:46,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 451 transitions. [2024-11-09 15:03:46,270 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5050391937290034 [2024-11-09 15:03:46,270 INFO L175 Difference]: Start difference. First operand has 343 places, 540 transitions, 10603 flow. Second operand 19 states and 451 transitions. [2024-11-09 15:03:46,270 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 361 places, 693 transitions, 13997 flow [2024-11-09 15:03:46,610 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 357 places, 693 transitions, 13769 flow, removed 84 selfloop flow, removed 4 redundant places. [2024-11-09 15:03:46,620 INFO L231 Difference]: Finished difference. Result has 367 places, 577 transitions, 11645 flow [2024-11-09 15:03:46,621 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} [2024-11-09 15:03:46,621 INFO L277 CegarLoopForPetriNet]: 47 programPoint places, 320 predicate places. [2024-11-09 15:03:46,621 INFO L471 AbstractCegarLoop]: Abstraction has has 367 places, 577 transitions, 11645 flow [2024-11-09 15:03:46,621 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) [2024-11-09 15:03:46,621 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:03:46,622 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 15:03:46,622 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2024-11-09 15:03:46,622 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)] === [2024-11-09 15:03:46,622 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:03:46,622 INFO L85 PathProgramCache]: Analyzing trace with hash 886889304, now seen corresponding path program 2 times [2024-11-09 15:03:46,622 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:03:46,623 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2101685199] [2024-11-09 15:03:46,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:03:46,623 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:03:46,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:03:47,177 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-09 15:03:47,177 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:03:47,177 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2101685199] [2024-11-09 15:03:47,177 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2101685199] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 15:03:47,177 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 15:03:47,178 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-09 15:03:47,178 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [613195029] [2024-11-09 15:03:47,178 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 15:03:47,178 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-09 15:03:47,179 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:03:47,179 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-09 15:03:47,180 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2024-11-09 15:03:47,224 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 47 [2024-11-09 15:03:47,224 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) [2024-11-09 15:03:47,224 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:03:47,225 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 47 [2024-11-09 15:03:47,225 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 15:03:49,144 INFO L124 PetriNetUnfolderBase]: 1955/4453 cut-off events. [2024-11-09 15:03:49,144 INFO L125 PetriNetUnfolderBase]: For 116661/116672 co-relation queries the response was YES. [2024-11-09 15:03:49,173 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. [2024-11-09 15:03:49,187 INFO L140 encePairwiseOnDemand]: 33/47 looper letters, 650 selfloop transitions, 69 changer transitions 0/735 dead transitions. [2024-11-09 15:03:49,187 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 379 places, 735 transitions, 15576 flow [2024-11-09 15:03:49,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-09 15:03:49,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2024-11-09 15:03:49,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 314 transitions. [2024-11-09 15:03:49,189 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.513911620294599 [2024-11-09 15:03:49,189 INFO L175 Difference]: Start difference. First operand has 367 places, 577 transitions, 11645 flow. Second operand 13 states and 314 transitions. [2024-11-09 15:03:49,189 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 379 places, 735 transitions, 15576 flow [2024-11-09 15:03:49,602 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 378 places, 735 transitions, 15385 flow, removed 95 selfloop flow, removed 1 redundant places. [2024-11-09 15:03:49,612 INFO L231 Difference]: Finished difference. Result has 386 places, 606 transitions, 12183 flow [2024-11-09 15:03:49,612 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} [2024-11-09 15:03:49,612 INFO L277 CegarLoopForPetriNet]: 47 programPoint places, 339 predicate places. [2024-11-09 15:03:49,612 INFO L471 AbstractCegarLoop]: Abstraction has has 386 places, 606 transitions, 12183 flow [2024-11-09 15:03:49,613 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) [2024-11-09 15:03:49,613 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:03:49,613 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 15:03:49,613 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2024-11-09 15:03:49,613 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)] === [2024-11-09 15:03:49,613 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:03:49,613 INFO L85 PathProgramCache]: Analyzing trace with hash 1599278530, now seen corresponding path program 3 times [2024-11-09 15:03:49,613 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:03:49,613 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [419413214] [2024-11-09 15:03:49,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:03:49,614 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:03:49,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:03:50,027 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-09 15:03:50,028 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:03:50,028 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [419413214] [2024-11-09 15:03:50,028 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [419413214] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 15:03:50,028 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 15:03:50,028 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-09 15:03:50,028 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [653971549] [2024-11-09 15:03:50,028 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 15:03:50,029 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-09 15:03:50,029 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:03:50,029 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-09 15:03:50,030 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2024-11-09 15:03:50,046 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 47 [2024-11-09 15:03:50,046 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) [2024-11-09 15:03:50,046 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:03:50,046 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 47 [2024-11-09 15:03:50,047 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 15:03:52,388 INFO L124 PetriNetUnfolderBase]: 2345/5235 cut-off events. [2024-11-09 15:03:52,388 INFO L125 PetriNetUnfolderBase]: For 135687/135733 co-relation queries the response was YES. [2024-11-09 15:03:52,425 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. [2024-11-09 15:03:52,446 INFO L140 encePairwiseOnDemand]: 31/47 looper letters, 676 selfloop transitions, 129 changer transitions 0/819 dead transitions. [2024-11-09 15:03:52,446 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 404 places, 819 transitions, 17075 flow [2024-11-09 15:03:52,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-09 15:03:52,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2024-11-09 15:03:52,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 460 transitions. [2024-11-09 15:03:52,448 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5151175811870101 [2024-11-09 15:03:52,448 INFO L175 Difference]: Start difference. First operand has 386 places, 606 transitions, 12183 flow. Second operand 19 states and 460 transitions. [2024-11-09 15:03:52,448 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 404 places, 819 transitions, 17075 flow [2024-11-09 15:03:52,959 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 401 places, 819 transitions, 16962 flow, removed 23 selfloop flow, removed 3 redundant places. [2024-11-09 15:03:52,971 INFO L231 Difference]: Finished difference. Result has 410 places, 659 transitions, 13337 flow [2024-11-09 15:03:52,971 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} [2024-11-09 15:03:52,971 INFO L277 CegarLoopForPetriNet]: 47 programPoint places, 363 predicate places. [2024-11-09 15:03:52,971 INFO L471 AbstractCegarLoop]: Abstraction has has 410 places, 659 transitions, 13337 flow [2024-11-09 15:03:52,972 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) [2024-11-09 15:03:52,972 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:03:52,972 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 15:03:52,972 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2024-11-09 15:03:52,972 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)] === [2024-11-09 15:03:52,972 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:03:52,972 INFO L85 PathProgramCache]: Analyzing trace with hash -490389874, now seen corresponding path program 6 times [2024-11-09 15:03:52,972 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:03:52,972 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [329065926] [2024-11-09 15:03:52,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:03:52,973 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:03:52,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:03:53,450 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-09 15:03:53,450 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:03:53,450 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [329065926] [2024-11-09 15:03:53,451 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [329065926] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 15:03:53,451 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 15:03:53,451 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-09 15:03:53,451 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [524268092] [2024-11-09 15:03:53,451 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 15:03:53,452 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-09 15:03:53,452 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:03:53,452 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-09 15:03:53,453 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2024-11-09 15:03:53,480 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 47 [2024-11-09 15:03:53,481 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) [2024-11-09 15:03:53,481 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:03:53,481 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 47 [2024-11-09 15:03:53,481 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 15:03:55,636 INFO L124 PetriNetUnfolderBase]: 2182/4925 cut-off events. [2024-11-09 15:03:55,637 INFO L125 PetriNetUnfolderBase]: For 154468/154488 co-relation queries the response was YES. [2024-11-09 15:03:55,671 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. [2024-11-09 15:03:55,688 INFO L140 encePairwiseOnDemand]: 34/47 looper letters, 667 selfloop transitions, 98 changer transitions 0/782 dead transitions. [2024-11-09 15:03:55,688 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 422 places, 782 transitions, 16808 flow [2024-11-09 15:03:55,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-09 15:03:55,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2024-11-09 15:03:55,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 312 transitions. [2024-11-09 15:03:55,689 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5106382978723404 [2024-11-09 15:03:55,689 INFO L175 Difference]: Start difference. First operand has 410 places, 659 transitions, 13337 flow. Second operand 13 states and 312 transitions. [2024-11-09 15:03:55,689 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 422 places, 782 transitions, 16808 flow [2024-11-09 15:03:56,291 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 421 places, 782 transitions, 16697 flow, removed 55 selfloop flow, removed 1 redundant places. [2024-11-09 15:03:56,307 INFO L231 Difference]: Finished difference. Result has 428 places, 687 transitions, 14206 flow [2024-11-09 15:03:56,309 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} [2024-11-09 15:03:56,309 INFO L277 CegarLoopForPetriNet]: 47 programPoint places, 381 predicate places. [2024-11-09 15:03:56,309 INFO L471 AbstractCegarLoop]: Abstraction has has 428 places, 687 transitions, 14206 flow [2024-11-09 15:03:56,310 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) [2024-11-09 15:03:56,310 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:03:56,310 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 15:03:56,310 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2024-11-09 15:03:56,310 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)] === [2024-11-09 15:03:56,310 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:03:56,311 INFO L85 PathProgramCache]: Analyzing trace with hash -1398929920, now seen corresponding path program 4 times [2024-11-09 15:03:56,311 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:03:56,311 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [635238734] [2024-11-09 15:03:56,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:03:56,311 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:03:56,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:03:56,742 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-09 15:03:56,742 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:03:56,743 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [635238734] [2024-11-09 15:03:56,743 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [635238734] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 15:03:56,743 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 15:03:56,743 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-09 15:03:56,743 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1777523527] [2024-11-09 15:03:56,743 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 15:03:56,745 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-09 15:03:56,745 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:03:56,745 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-09 15:03:56,746 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2024-11-09 15:03:56,761 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 47 [2024-11-09 15:03:56,762 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) [2024-11-09 15:03:56,762 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:03:56,762 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 47 [2024-11-09 15:03:56,763 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 15:03:59,531 INFO L124 PetriNetUnfolderBase]: 2744/6061 cut-off events. [2024-11-09 15:03:59,531 INFO L125 PetriNetUnfolderBase]: For 194832/194887 co-relation queries the response was YES. [2024-11-09 15:03:59,586 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. [2024-11-09 15:03:59,613 INFO L140 encePairwiseOnDemand]: 31/47 looper letters, 642 selfloop transitions, 261 changer transitions 0/917 dead transitions. [2024-11-09 15:03:59,614 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 445 places, 917 transitions, 19756 flow [2024-11-09 15:03:59,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-09 15:03:59,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2024-11-09 15:03:59,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 428 transitions. [2024-11-09 15:03:59,615 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5059101654846335 [2024-11-09 15:03:59,615 INFO L175 Difference]: Start difference. First operand has 428 places, 687 transitions, 14206 flow. Second operand 18 states and 428 transitions. [2024-11-09 15:03:59,615 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 445 places, 917 transitions, 19756 flow [2024-11-09 15:04:00,492 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 443 places, 917 transitions, 19544 flow, removed 99 selfloop flow, removed 2 redundant places. [2024-11-09 15:04:00,512 INFO L231 Difference]: Finished difference. Result has 454 places, 775 transitions, 16614 flow [2024-11-09 15:04:00,513 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} [2024-11-09 15:04:00,513 INFO L277 CegarLoopForPetriNet]: 47 programPoint places, 407 predicate places. [2024-11-09 15:04:00,514 INFO L471 AbstractCegarLoop]: Abstraction has has 454 places, 775 transitions, 16614 flow [2024-11-09 15:04:00,514 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) [2024-11-09 15:04:00,514 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:04:00,514 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 15:04:00,514 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2024-11-09 15:04:00,514 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)] === [2024-11-09 15:04:00,515 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:04:00,515 INFO L85 PathProgramCache]: Analyzing trace with hash -1403731420, now seen corresponding path program 7 times [2024-11-09 15:04:00,515 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:04:00,515 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [486961491] [2024-11-09 15:04:00,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:04:00,515 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:04:00,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:04:00,963 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-09 15:04:00,963 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:04:00,963 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [486961491] [2024-11-09 15:04:00,963 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [486961491] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 15:04:00,963 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 15:04:00,963 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-09 15:04:00,963 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [60953148] [2024-11-09 15:04:00,963 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 15:04:00,964 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-09 15:04:00,964 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:04:00,964 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-09 15:04:00,964 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2024-11-09 15:04:00,977 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 47 [2024-11-09 15:04:00,977 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) [2024-11-09 15:04:00,977 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:04:00,977 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 47 [2024-11-09 15:04:00,977 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 15:04:03,780 INFO L124 PetriNetUnfolderBase]: 2880/6183 cut-off events. [2024-11-09 15:04:03,781 INFO L125 PetriNetUnfolderBase]: For 238011/238106 co-relation queries the response was YES. [2024-11-09 15:04:03,846 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. [2024-11-09 15:04:03,884 INFO L140 encePairwiseOnDemand]: 32/47 looper letters, 650 selfloop transitions, 260 changer transitions 0/924 dead transitions. [2024-11-09 15:04:03,884 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 469 places, 924 transitions, 20745 flow [2024-11-09 15:04:03,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-09 15:04:03,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2024-11-09 15:04:03,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 379 transitions. [2024-11-09 15:04:03,885 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5039893617021277 [2024-11-09 15:04:03,885 INFO L175 Difference]: Start difference. First operand has 454 places, 775 transitions, 16614 flow. Second operand 16 states and 379 transitions. [2024-11-09 15:04:03,886 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 469 places, 924 transitions, 20745 flow [2024-11-09 15:04:05,312 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 465 places, 924 transitions, 20271 flow, removed 78 selfloop flow, removed 4 redundant places. [2024-11-09 15:04:05,330 INFO L231 Difference]: Finished difference. Result has 474 places, 803 transitions, 17716 flow [2024-11-09 15:04:05,331 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} [2024-11-09 15:04:05,331 INFO L277 CegarLoopForPetriNet]: 47 programPoint places, 427 predicate places. [2024-11-09 15:04:05,332 INFO L471 AbstractCegarLoop]: Abstraction has has 474 places, 803 transitions, 17716 flow [2024-11-09 15:04:05,332 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) [2024-11-09 15:04:05,332 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:04:05,332 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 15:04:05,332 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2024-11-09 15:04:05,333 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)] === [2024-11-09 15:04:05,333 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:04:05,333 INFO L85 PathProgramCache]: Analyzing trace with hash -213190240, now seen corresponding path program 5 times [2024-11-09 15:04:05,333 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:04:05,334 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1431573146] [2024-11-09 15:04:05,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:04:05,334 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:04:05,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:04:05,611 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-09 15:04:05,612 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:04:05,612 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1431573146] [2024-11-09 15:04:05,612 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1431573146] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 15:04:05,613 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 15:04:05,613 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-09 15:04:05,613 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [34180629] [2024-11-09 15:04:05,613 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 15:04:05,613 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-09 15:04:05,613 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:04:05,614 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-09 15:04:05,614 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2024-11-09 15:04:05,644 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 47 [2024-11-09 15:04:05,644 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) [2024-11-09 15:04:05,644 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:04:05,645 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 47 [2024-11-09 15:04:05,645 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 15:04:08,804 INFO L124 PetriNetUnfolderBase]: 3141/6863 cut-off events. [2024-11-09 15:04:08,805 INFO L125 PetriNetUnfolderBase]: For 280620/280705 co-relation queries the response was YES. [2024-11-09 15:04:08,879 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. [2024-11-09 15:04:08,913 INFO L140 encePairwiseOnDemand]: 31/47 looper letters, 703 selfloop transitions, 292 changer transitions 0/1010 dead transitions. [2024-11-09 15:04:08,914 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 491 places, 1010 transitions, 23336 flow [2024-11-09 15:04:08,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-09 15:04:08,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2024-11-09 15:04:08,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 422 transitions. [2024-11-09 15:04:08,915 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4988179669030733 [2024-11-09 15:04:08,915 INFO L175 Difference]: Start difference. First operand has 474 places, 803 transitions, 17716 flow. Second operand 18 states and 422 transitions. [2024-11-09 15:04:08,915 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 491 places, 1010 transitions, 23336 flow [2024-11-09 15:04:10,701 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 488 places, 1010 transitions, 22768 flow, removed 167 selfloop flow, removed 3 redundant places. [2024-11-09 15:04:10,721 INFO L231 Difference]: Finished difference. Result has 500 places, 880 transitions, 19946 flow [2024-11-09 15:04:10,722 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} [2024-11-09 15:04:10,723 INFO L277 CegarLoopForPetriNet]: 47 programPoint places, 453 predicate places. [2024-11-09 15:04:10,723 INFO L471 AbstractCegarLoop]: Abstraction has has 500 places, 880 transitions, 19946 flow [2024-11-09 15:04:10,723 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) [2024-11-09 15:04:10,723 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:04:10,723 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 15:04:10,723 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2024-11-09 15:04:10,724 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)] === [2024-11-09 15:04:10,724 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:04:10,724 INFO L85 PathProgramCache]: Analyzing trace with hash -539460744, now seen corresponding path program 6 times [2024-11-09 15:04:10,724 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:04:10,724 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [560945444] [2024-11-09 15:04:10,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:04:10,724 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:04:10,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:04:11,029 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-09 15:04:11,029 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:04:11,030 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [560945444] [2024-11-09 15:04:11,030 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [560945444] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 15:04:11,030 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 15:04:11,030 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-09 15:04:11,030 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1472478967] [2024-11-09 15:04:11,030 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 15:04:11,030 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-09 15:04:11,031 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:04:11,031 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-09 15:04:11,031 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2024-11-09 15:04:11,043 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 47 [2024-11-09 15:04:11,043 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) [2024-11-09 15:04:11,043 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:04:11,043 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 47 [2024-11-09 15:04:11,043 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 15:04:14,678 INFO L124 PetriNetUnfolderBase]: 3292/7160 cut-off events. [2024-11-09 15:04:14,678 INFO L125 PetriNetUnfolderBase]: For 326218/326342 co-relation queries the response was YES. [2024-11-09 15:04:14,748 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. [2024-11-09 15:04:14,781 INFO L140 encePairwiseOnDemand]: 31/47 looper letters, 743 selfloop transitions, 299 changer transitions 0/1057 dead transitions. [2024-11-09 15:04:14,782 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 518 places, 1057 transitions, 25164 flow [2024-11-09 15:04:14,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-09 15:04:14,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2024-11-09 15:04:14,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 445 transitions. [2024-11-09 15:04:14,783 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.49832026875699886 [2024-11-09 15:04:14,783 INFO L175 Difference]: Start difference. First operand has 500 places, 880 transitions, 19946 flow. Second operand 19 states and 445 transitions. [2024-11-09 15:04:14,783 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 518 places, 1057 transitions, 25164 flow [2024-11-09 15:04:16,397 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 516 places, 1057 transitions, 24839 flow, removed 110 selfloop flow, removed 2 redundant places. [2024-11-09 15:04:16,414 INFO L231 Difference]: Finished difference. Result has 527 places, 922 transitions, 21734 flow [2024-11-09 15:04:16,415 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} [2024-11-09 15:04:16,415 INFO L277 CegarLoopForPetriNet]: 47 programPoint places, 480 predicate places. [2024-11-09 15:04:16,415 INFO L471 AbstractCegarLoop]: Abstraction has has 527 places, 922 transitions, 21734 flow [2024-11-09 15:04:16,415 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) [2024-11-09 15:04:16,415 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:04:16,416 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 15:04:16,416 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2024-11-09 15:04:16,416 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)] === [2024-11-09 15:04:16,416 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:04:16,416 INFO L85 PathProgramCache]: Analyzing trace with hash 35745172, now seen corresponding path program 7 times [2024-11-09 15:04:16,416 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:04:16,416 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [972503633] [2024-11-09 15:04:16,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:04:16,417 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:04:16,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:04:16,944 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-09 15:04:16,944 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:04:16,945 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [972503633] [2024-11-09 15:04:16,945 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [972503633] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 15:04:16,945 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 15:04:16,945 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-09 15:04:16,945 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1417804438] [2024-11-09 15:04:16,945 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 15:04:16,945 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-09 15:04:16,946 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:04:16,946 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-09 15:04:16,946 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2024-11-09 15:04:16,971 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 47 [2024-11-09 15:04:16,971 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) [2024-11-09 15:04:16,972 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:04:16,972 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 47 [2024-11-09 15:04:16,972 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand