./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/goblint-regression/06-symbeq_02-funloop_norace.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 3061b6dc 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_02-funloop_norace.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 ebedbc62bd44b0c214a81c07c6f99e850a5d96675b77716f8547d1b39e8b2cf8 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-19 13:57:32,895 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-19 13:57:32,953 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-19 13:57:32,956 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-19 13:57:32,956 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-19 13:57:32,975 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-19 13:57:32,975 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-19 13:57:32,976 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-19 13:57:32,976 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-19 13:57:32,977 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-19 13:57:32,977 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-19 13:57:32,977 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-19 13:57:32,978 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-19 13:57:32,978 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-19 13:57:32,978 INFO L153 SettingsManager]: * Use SBE=true [2024-11-19 13:57:32,978 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-19 13:57:32,979 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-19 13:57:32,979 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-19 13:57:32,979 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-19 13:57:32,979 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-19 13:57:32,980 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-19 13:57:32,980 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-19 13:57:32,980 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-19 13:57:32,981 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-19 13:57:32,981 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-19 13:57:32,981 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-19 13:57:32,982 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-19 13:57:32,982 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-19 13:57:32,982 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-19 13:57:32,982 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-19 13:57:32,983 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-19 13:57:32,983 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-19 13:57:32,983 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-19 13:57:32,984 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-19 13:57:32,984 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 13:57:32,984 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-19 13:57:32,984 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-19 13:57:32,985 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-19 13:57:32,985 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-19 13:57:32,985 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-19 13:57:32,985 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-19 13:57:32,986 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-19 13:57:32,986 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-19 13:57:32,986 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-19 13:57:32,986 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ebedbc62bd44b0c214a81c07c6f99e850a5d96675b77716f8547d1b39e8b2cf8 [2024-11-19 13:57:33,132 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-19 13:57:33,149 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-19 13:57:33,151 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-19 13:57:33,152 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-19 13:57:33,156 INFO L274 PluginConnector]: CDTParser initialized [2024-11-19 13:57:33,157 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/06-symbeq_02-funloop_norace.i [2024-11-19 13:57:34,476 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-19 13:57:34,675 INFO L384 CDTParser]: Found 1 translation units. [2024-11-19 13:57:34,675 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/06-symbeq_02-funloop_norace.i [2024-11-19 13:57:34,686 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a304d1ac4/83143f1ec6d04313bfbdf7afb351d108/FLAG08c86d1df [2024-11-19 13:57:35,053 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a304d1ac4/83143f1ec6d04313bfbdf7afb351d108 [2024-11-19 13:57:35,055 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-19 13:57:35,059 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-19 13:57:35,060 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-19 13:57:35,061 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-19 13:57:35,065 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-19 13:57:35,065 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 01:57:35" (1/1) ... [2024-11-19 13:57:35,067 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@77525294 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:57:35, skipping insertion in model container [2024-11-19 13:57:35,067 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 01:57:35" (1/1) ... [2024-11-19 13:57:35,104 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-19 13:57:35,539 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 13:57:35,580 INFO L200 MainTranslator]: Completed pre-run [2024-11-19 13:57:35,624 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 13:57:35,721 INFO L204 MainTranslator]: Completed translation [2024-11-19 13:57:35,722 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:57:35 WrapperNode [2024-11-19 13:57:35,722 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-19 13:57:35,723 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-19 13:57:35,723 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-19 13:57:35,723 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-19 13:57:35,729 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:57:35" (1/1) ... [2024-11-19 13:57:35,751 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:57:35" (1/1) ... [2024-11-19 13:57:35,779 INFO L138 Inliner]: procedures = 263, calls = 70, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 142 [2024-11-19 13:57:35,780 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-19 13:57:35,780 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-19 13:57:35,780 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-19 13:57:35,781 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-19 13:57:35,789 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:57:35" (1/1) ... [2024-11-19 13:57:35,789 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:57:35" (1/1) ... [2024-11-19 13:57:35,792 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:57:35" (1/1) ... [2024-11-19 13:57:35,802 INFO L175 MemorySlicer]: Split 64 memory accesses to 1 slices as follows [64]. 100 percent of accesses are in the largest equivalence class. The 60 initializations are split as follows [60]. The 2 writes are split as follows [2]. [2024-11-19 13:57:35,802 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:57:35" (1/1) ... [2024-11-19 13:57:35,802 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:57:35" (1/1) ... [2024-11-19 13:57:35,807 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:57:35" (1/1) ... [2024-11-19 13:57:35,810 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:57:35" (1/1) ... [2024-11-19 13:57:35,811 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:57:35" (1/1) ... [2024-11-19 13:57:35,812 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:57:35" (1/1) ... [2024-11-19 13:57:35,814 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-19 13:57:35,814 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-19 13:57:35,814 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-19 13:57:35,815 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-19 13:57:35,815 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:57:35" (1/1) ... [2024-11-19 13:57:35,820 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 13:57:35,832 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 13:57:35,850 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) [2024-11-19 13:57:35,852 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 [2024-11-19 13:57:35,882 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-19 13:57:35,882 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-19 13:57:35,882 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-19 13:57:35,883 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-19 13:57:35,883 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-19 13:57:35,883 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-11-19 13:57:35,883 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-11-19 13:57:35,883 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-19 13:57:35,883 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-19 13:57:35,883 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-19 13:57:35,884 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-19 13:57:35,975 INFO L238 CfgBuilder]: Building ICFG [2024-11-19 13:57:35,977 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-19 13:57:36,169 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-19 13:57:36,169 INFO L287 CfgBuilder]: Performing block encoding [2024-11-19 13:57:36,376 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-19 13:57:36,379 INFO L316 CfgBuilder]: Removed 3 assume(true) statements. [2024-11-19 13:57:36,380 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 01:57:36 BoogieIcfgContainer [2024-11-19 13:57:36,380 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-19 13:57:36,381 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-19 13:57:36,381 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-19 13:57:36,387 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-19 13:57:36,387 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 01:57:35" (1/3) ... [2024-11-19 13:57:36,388 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ccc025 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 01:57:36, skipping insertion in model container [2024-11-19 13:57:36,388 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:57:35" (2/3) ... [2024-11-19 13:57:36,391 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ccc025 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 01:57:36, skipping insertion in model container [2024-11-19 13:57:36,391 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 01:57:36" (3/3) ... [2024-11-19 13:57:36,393 INFO L112 eAbstractionObserver]: Analyzing ICFG 06-symbeq_02-funloop_norace.i [2024-11-19 13:57:36,422 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-19 13:57:36,422 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 10 error locations. [2024-11-19 13:57:36,422 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-19 13:57:36,467 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-19 13:57:36,493 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 40 places, 39 transitions, 82 flow [2024-11-19 13:57:36,517 INFO L124 PetriNetUnfolderBase]: 3/38 cut-off events. [2024-11-19 13:57:36,517 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-19 13:57:36,519 INFO L83 FinitePrefix]: Finished finitePrefix Result has 42 conditions, 38 events. 3/38 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 70 event pairs, 0 based on Foata normal form. 0/25 useless extension candidates. Maximal degree in co-relation 30. Up to 2 conditions per place. [2024-11-19 13:57:36,519 INFO L82 GeneralOperation]: Start removeDead. Operand has 40 places, 39 transitions, 82 flow [2024-11-19 13:57:36,522 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 39 places, 38 transitions, 79 flow [2024-11-19 13:57:36,533 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-19 13:57:36,540 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;@5cdb8e69, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-19 13:57:36,540 INFO L334 AbstractCegarLoop]: Starting to check reachability of 15 error locations. [2024-11-19 13:57:36,545 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-19 13:57:36,545 INFO L124 PetriNetUnfolderBase]: 0/3 cut-off events. [2024-11-19 13:57:36,545 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-19 13:57:36,545 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 13:57:36,546 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2024-11-19 13:57:36,546 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 12 more)] === [2024-11-19 13:57:36,551 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 13:57:36,551 INFO L85 PathProgramCache]: Analyzing trace with hash 369336, now seen corresponding path program 1 times [2024-11-19 13:57:36,559 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 13:57:36,559 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [800932610] [2024-11-19 13:57:36,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 13:57:36,560 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 13:57:36,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 13:57:36,858 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 13:57:36,859 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 13:57:36,859 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [800932610] [2024-11-19 13:57:36,860 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [800932610] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 13:57:36,860 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 13:57:36,860 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 13:57:36,861 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1351889476] [2024-11-19 13:57:36,862 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 13:57:36,868 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 13:57:36,872 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 13:57:36,895 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 13:57:36,895 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-19 13:57:36,902 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 39 [2024-11-19 13:57:36,904 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 38 transitions, 79 flow. Second operand has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 13:57:36,904 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 13:57:36,904 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 39 [2024-11-19 13:57:36,905 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 13:57:37,064 INFO L124 PetriNetUnfolderBase]: 83/260 cut-off events. [2024-11-19 13:57:37,064 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-19 13:57:37,065 INFO L83 FinitePrefix]: Finished finitePrefix Result has 436 conditions, 260 events. 83/260 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 1144 event pairs, 64 based on Foata normal form. 1/210 useless extension candidates. Maximal degree in co-relation 411. Up to 170 conditions per place. [2024-11-19 13:57:37,070 INFO L140 encePairwiseOnDemand]: 33/39 looper letters, 24 selfloop transitions, 3 changer transitions 0/40 dead transitions. [2024-11-19 13:57:37,076 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 40 transitions, 137 flow [2024-11-19 13:57:37,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 13:57:37,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-19 13:57:37,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 86 transitions. [2024-11-19 13:57:37,086 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5512820512820513 [2024-11-19 13:57:37,088 INFO L175 Difference]: Start difference. First operand has 39 places, 38 transitions, 79 flow. Second operand 4 states and 86 transitions. [2024-11-19 13:57:37,088 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 40 transitions, 137 flow [2024-11-19 13:57:37,090 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 40 transitions, 136 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-19 13:57:37,093 INFO L231 Difference]: Finished difference. Result has 43 places, 40 transitions, 102 flow [2024-11-19 13:57:37,095 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=39, PETRI_DIFFERENCE_MINUEND_FLOW=78, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=102, PETRI_PLACES=43, PETRI_TRANSITIONS=40} [2024-11-19 13:57:37,098 INFO L277 CegarLoopForPetriNet]: 39 programPoint places, 4 predicate places. [2024-11-19 13:57:37,102 INFO L471 AbstractCegarLoop]: Abstraction has has 43 places, 40 transitions, 102 flow [2024-11-19 13:57:37,102 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 13:57:37,103 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 13:57:37,103 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1] [2024-11-19 13:57:37,103 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-19 13:57:37,104 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 12 more)] === [2024-11-19 13:57:37,104 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 13:57:37,105 INFO L85 PathProgramCache]: Analyzing trace with hash -1881648581, now seen corresponding path program 1 times [2024-11-19 13:57:37,105 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 13:57:37,105 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [722271785] [2024-11-19 13:57:37,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 13:57:37,105 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 13:57:37,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 13:57:37,290 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 13:57:37,291 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 13:57:37,291 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [722271785] [2024-11-19 13:57:37,292 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [722271785] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 13:57:37,292 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [836797988] [2024-11-19 13:57:37,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 13:57:37,292 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 13:57:37,292 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 13:57:37,296 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) [2024-11-19 13:57:37,298 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-19 13:57:37,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 13:57:37,373 INFO L255 TraceCheckSpWp]: Trace formula consists of 154 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-19 13:57:37,376 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 13:57:37,417 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 13:57:37,418 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 13:57:37,418 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [836797988] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 13:57:37,419 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 13:57:37,419 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2024-11-19 13:57:37,420 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [437765704] [2024-11-19 13:57:37,420 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 13:57:37,420 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 13:57:37,420 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 13:57:37,421 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 13:57:37,422 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-19 13:57:37,429 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 39 [2024-11-19 13:57:37,429 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 40 transitions, 102 flow. Second operand has 6 states, 6 states have (on average 14.833333333333334) internal successors, (89), 6 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 13:57:37,430 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 13:57:37,430 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 39 [2024-11-19 13:57:37,430 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 13:57:37,549 INFO L124 PetriNetUnfolderBase]: 83/259 cut-off events. [2024-11-19 13:57:37,550 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-11-19 13:57:37,550 INFO L83 FinitePrefix]: Finished finitePrefix Result has 445 conditions, 259 events. 83/259 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 1140 event pairs, 64 based on Foata normal form. 1/209 useless extension candidates. Maximal degree in co-relation 428. Up to 165 conditions per place. [2024-11-19 13:57:37,552 INFO L140 encePairwiseOnDemand]: 34/39 looper letters, 20 selfloop transitions, 6 changer transitions 0/39 dead transitions. [2024-11-19 13:57:37,552 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 39 transitions, 150 flow [2024-11-19 13:57:37,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 13:57:37,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-19 13:57:37,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 111 transitions. [2024-11-19 13:57:37,556 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.47435897435897434 [2024-11-19 13:57:37,556 INFO L175 Difference]: Start difference. First operand has 43 places, 40 transitions, 102 flow. Second operand 6 states and 111 transitions. [2024-11-19 13:57:37,556 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 39 transitions, 150 flow [2024-11-19 13:57:37,557 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 39 transitions, 148 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-19 13:57:37,559 INFO L231 Difference]: Finished difference. Result has 46 places, 39 transitions, 108 flow [2024-11-19 13:57:37,561 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=39, PETRI_DIFFERENCE_MINUEND_FLOW=96, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=108, PETRI_PLACES=46, PETRI_TRANSITIONS=39} [2024-11-19 13:57:37,562 INFO L277 CegarLoopForPetriNet]: 39 programPoint places, 7 predicate places. [2024-11-19 13:57:37,562 INFO L471 AbstractCegarLoop]: Abstraction has has 46 places, 39 transitions, 108 flow [2024-11-19 13:57:37,562 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.833333333333334) internal successors, (89), 6 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 13:57:37,563 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 13:57:37,563 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1] [2024-11-19 13:57:37,584 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-19 13:57:37,763 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 [2024-11-19 13:57:37,764 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 12 more)] === [2024-11-19 13:57:37,765 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 13:57:37,765 INFO L85 PathProgramCache]: Analyzing trace with hash 1798436500, now seen corresponding path program 1 times [2024-11-19 13:57:37,765 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 13:57:37,766 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1307687988] [2024-11-19 13:57:37,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 13:57:37,766 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 13:57:37,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 13:57:37,794 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-19 13:57:37,794 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 13:57:37,794 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1307687988] [2024-11-19 13:57:37,795 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1307687988] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 13:57:37,795 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 13:57:37,795 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 13:57:37,795 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1850731826] [2024-11-19 13:57:37,795 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 13:57:37,795 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 13:57:37,796 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 13:57:37,796 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 13:57:37,796 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 13:57:37,799 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 39 [2024-11-19 13:57:37,800 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 39 transitions, 108 flow. Second operand has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 13:57:37,800 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 13:57:37,800 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 39 [2024-11-19 13:57:37,800 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 13:57:37,850 INFO L124 PetriNetUnfolderBase]: 83/258 cut-off events. [2024-11-19 13:57:37,851 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2024-11-19 13:57:37,851 INFO L83 FinitePrefix]: Finished finitePrefix Result has 447 conditions, 258 events. 83/258 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 1142 event pairs, 64 based on Foata normal form. 1/209 useless extension candidates. Maximal degree in co-relation 424. Up to 168 conditions per place. [2024-11-19 13:57:37,852 INFO L140 encePairwiseOnDemand]: 36/39 looper letters, 21 selfloop transitions, 4 changer transitions 0/38 dead transitions. [2024-11-19 13:57:37,852 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 38 transitions, 154 flow [2024-11-19 13:57:37,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 13:57:37,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 13:57:37,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 66 transitions. [2024-11-19 13:57:37,853 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5641025641025641 [2024-11-19 13:57:37,853 INFO L175 Difference]: Start difference. First operand has 46 places, 39 transitions, 108 flow. Second operand 3 states and 66 transitions. [2024-11-19 13:57:37,854 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 38 transitions, 154 flow [2024-11-19 13:57:37,854 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 38 transitions, 132 flow, removed 3 selfloop flow, removed 6 redundant places. [2024-11-19 13:57:37,855 INFO L231 Difference]: Finished difference. Result has 41 places, 38 transitions, 90 flow [2024-11-19 13:57:37,855 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=39, PETRI_DIFFERENCE_MINUEND_FLOW=82, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=90, PETRI_PLACES=41, PETRI_TRANSITIONS=38} [2024-11-19 13:57:37,855 INFO L277 CegarLoopForPetriNet]: 39 programPoint places, 2 predicate places. [2024-11-19 13:57:37,855 INFO L471 AbstractCegarLoop]: Abstraction has has 41 places, 38 transitions, 90 flow [2024-11-19 13:57:37,855 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 13:57:37,856 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 13:57:37,856 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 13:57:37,856 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-19 13:57:37,856 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 12 more)] === [2024-11-19 13:57:37,856 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 13:57:37,856 INFO L85 PathProgramCache]: Analyzing trace with hash 1565500079, now seen corresponding path program 1 times [2024-11-19 13:57:37,857 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 13:57:37,857 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1173391739] [2024-11-19 13:57:37,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 13:57:37,857 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 13:57:37,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 13:57:37,935 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 13:57:37,935 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 13:57:37,935 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1173391739] [2024-11-19 13:57:37,935 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1173391739] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 13:57:37,935 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1427275707] [2024-11-19 13:57:37,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 13:57:37,936 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 13:57:37,936 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 13:57:37,937 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) [2024-11-19 13:57:37,939 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-19 13:57:38,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 13:57:38,008 INFO L255 TraceCheckSpWp]: Trace formula consists of 185 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-19 13:57:38,009 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 13:57:38,039 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 13:57:38,040 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 13:57:38,081 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 13:57:38,082 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1427275707] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 13:57:38,082 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 13:57:38,082 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 9 [2024-11-19 13:57:38,082 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1804286013] [2024-11-19 13:57:38,082 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 13:57:38,082 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-19 13:57:38,083 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 13:57:38,083 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-19 13:57:38,083 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-19 13:57:38,094 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 39 [2024-11-19 13:57:38,094 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 38 transitions, 90 flow. Second operand has 10 states, 10 states have (on average 15.6) internal successors, (156), 10 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 13:57:38,098 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 13:57:38,098 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 39 [2024-11-19 13:57:38,098 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 13:57:38,230 INFO L124 PetriNetUnfolderBase]: 83/262 cut-off events. [2024-11-19 13:57:38,233 INFO L125 PetriNetUnfolderBase]: For 9/9 co-relation queries the response was YES. [2024-11-19 13:57:38,234 INFO L83 FinitePrefix]: Finished finitePrefix Result has 450 conditions, 262 events. 83/262 cut-off events. For 9/9 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 1139 event pairs, 64 based on Foata normal form. 2/215 useless extension candidates. Maximal degree in co-relation 417. Up to 166 conditions per place. [2024-11-19 13:57:38,235 INFO L140 encePairwiseOnDemand]: 35/39 looper letters, 21 selfloop transitions, 7 changer transitions 0/41 dead transitions. [2024-11-19 13:57:38,235 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 41 transitions, 161 flow [2024-11-19 13:57:38,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-19 13:57:38,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-19 13:57:38,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 128 transitions. [2024-11-19 13:57:38,236 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.46886446886446886 [2024-11-19 13:57:38,240 INFO L175 Difference]: Start difference. First operand has 41 places, 38 transitions, 90 flow. Second operand 7 states and 128 transitions. [2024-11-19 13:57:38,240 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 41 transitions, 161 flow [2024-11-19 13:57:38,241 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 41 transitions, 147 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-19 13:57:38,241 INFO L231 Difference]: Finished difference. Result has 47 places, 41 transitions, 116 flow [2024-11-19 13:57:38,241 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=39, PETRI_DIFFERENCE_MINUEND_FLOW=82, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=116, PETRI_PLACES=47, PETRI_TRANSITIONS=41} [2024-11-19 13:57:38,242 INFO L277 CegarLoopForPetriNet]: 39 programPoint places, 8 predicate places. [2024-11-19 13:57:38,242 INFO L471 AbstractCegarLoop]: Abstraction has has 47 places, 41 transitions, 116 flow [2024-11-19 13:57:38,242 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 15.6) internal successors, (156), 10 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 13:57:38,243 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 13:57:38,243 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 13:57:38,258 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-19 13:57:38,443 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 [2024-11-19 13:57:38,444 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 12 more)] === [2024-11-19 13:57:38,444 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 13:57:38,444 INFO L85 PathProgramCache]: Analyzing trace with hash -1159090225, now seen corresponding path program 2 times [2024-11-19 13:57:38,444 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 13:57:38,444 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [540162001] [2024-11-19 13:57:38,445 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 13:57:38,445 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 13:57:38,458 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-19 13:57:38,458 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 13:57:38,578 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-19 13:57:38,578 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 13:57:38,578 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [540162001] [2024-11-19 13:57:38,578 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [540162001] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 13:57:38,578 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 13:57:38,578 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-19 13:57:38,579 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2055592060] [2024-11-19 13:57:38,579 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 13:57:38,579 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 13:57:38,579 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 13:57:38,582 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 13:57:38,582 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-19 13:57:38,586 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 39 [2024-11-19 13:57:38,587 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 41 transitions, 116 flow. Second operand has 6 states, 6 states have (on average 14.666666666666666) internal successors, (88), 6 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 13:57:38,590 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 13:57:38,590 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 39 [2024-11-19 13:57:38,590 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 13:57:38,762 INFO L124 PetriNetUnfolderBase]: 159/393 cut-off events. [2024-11-19 13:57:38,762 INFO L125 PetriNetUnfolderBase]: For 15/15 co-relation queries the response was YES. [2024-11-19 13:57:38,763 INFO L83 FinitePrefix]: Finished finitePrefix Result has 740 conditions, 393 events. 159/393 cut-off events. For 15/15 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 1682 event pairs, 16 based on Foata normal form. 0/318 useless extension candidates. Maximal degree in co-relation 702. Up to 189 conditions per place. [2024-11-19 13:57:38,764 INFO L140 encePairwiseOnDemand]: 30/39 looper letters, 61 selfloop transitions, 11 changer transitions 0/82 dead transitions. [2024-11-19 13:57:38,764 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 82 transitions, 342 flow [2024-11-19 13:57:38,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-19 13:57:38,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-19 13:57:38,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 161 transitions. [2024-11-19 13:57:38,766 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5897435897435898 [2024-11-19 13:57:38,766 INFO L175 Difference]: Start difference. First operand has 47 places, 41 transitions, 116 flow. Second operand 7 states and 161 transitions. [2024-11-19 13:57:38,766 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 82 transitions, 342 flow [2024-11-19 13:57:38,767 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 82 transitions, 338 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-19 13:57:38,768 INFO L231 Difference]: Finished difference. Result has 57 places, 51 transitions, 194 flow [2024-11-19 13:57:38,768 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=39, PETRI_DIFFERENCE_MINUEND_FLOW=112, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=194, PETRI_PLACES=57, PETRI_TRANSITIONS=51} [2024-11-19 13:57:38,768 INFO L277 CegarLoopForPetriNet]: 39 programPoint places, 18 predicate places. [2024-11-19 13:57:38,769 INFO L471 AbstractCegarLoop]: Abstraction has has 57 places, 51 transitions, 194 flow [2024-11-19 13:57:38,769 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.666666666666666) internal successors, (88), 6 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 13:57:38,769 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 13:57:38,769 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 13:57:38,769 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-19 13:57:38,769 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 12 more)] === [2024-11-19 13:57:38,770 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 13:57:38,770 INFO L85 PathProgramCache]: Analyzing trace with hash -1137976208, now seen corresponding path program 1 times [2024-11-19 13:57:38,770 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 13:57:38,770 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [672717300] [2024-11-19 13:57:38,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 13:57:38,770 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 13:57:38,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 13:57:38,851 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 13:57:38,851 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 13:57:38,851 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [672717300] [2024-11-19 13:57:38,851 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [672717300] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 13:57:38,851 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1366868227] [2024-11-19 13:57:38,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 13:57:38,852 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 13:57:38,852 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 13:57:38,853 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) [2024-11-19 13:57:38,854 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-19 13:57:38,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 13:57:38,916 INFO L255 TraceCheckSpWp]: Trace formula consists of 211 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-19 13:57:38,933 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 13:57:38,962 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 13:57:38,962 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 13:57:39,037 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 13:57:39,037 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1366868227] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 13:57:39,037 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 13:57:39,038 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 17 [2024-11-19 13:57:39,038 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1309104344] [2024-11-19 13:57:39,038 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 13:57:39,038 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-19 13:57:39,038 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 13:57:39,039 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-19 13:57:39,039 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2024-11-19 13:57:39,055 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 39 [2024-11-19 13:57:39,056 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 51 transitions, 194 flow. Second operand has 18 states, 18 states have (on average 15.333333333333334) internal successors, (276), 18 states have internal predecessors, (276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 13:57:39,056 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 13:57:39,056 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 39 [2024-11-19 13:57:39,056 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 13:57:39,221 INFO L124 PetriNetUnfolderBase]: 121/380 cut-off events. [2024-11-19 13:57:39,222 INFO L125 PetriNetUnfolderBase]: For 153/161 co-relation queries the response was YES. [2024-11-19 13:57:39,222 INFO L83 FinitePrefix]: Finished finitePrefix Result has 859 conditions, 380 events. 121/380 cut-off events. For 153/161 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 1788 event pairs, 68 based on Foata normal form. 4/331 useless extension candidates. Maximal degree in co-relation 779. Up to 241 conditions per place. [2024-11-19 13:57:39,223 INFO L140 encePairwiseOnDemand]: 35/39 looper letters, 30 selfloop transitions, 15 changer transitions 0/59 dead transitions. [2024-11-19 13:57:39,224 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 59 transitions, 332 flow [2024-11-19 13:57:39,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-19 13:57:39,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-11-19 13:57:39,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 250 transitions. [2024-11-19 13:57:39,225 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.42735042735042733 [2024-11-19 13:57:39,225 INFO L175 Difference]: Start difference. First operand has 57 places, 51 transitions, 194 flow. Second operand 15 states and 250 transitions. [2024-11-19 13:57:39,225 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 71 places, 59 transitions, 332 flow [2024-11-19 13:57:39,227 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 59 transitions, 332 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-19 13:57:39,228 INFO L231 Difference]: Finished difference. Result has 75 places, 59 transitions, 291 flow [2024-11-19 13:57:39,228 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=39, PETRI_DIFFERENCE_MINUEND_FLOW=194, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=291, PETRI_PLACES=75, PETRI_TRANSITIONS=59} [2024-11-19 13:57:39,229 INFO L277 CegarLoopForPetriNet]: 39 programPoint places, 36 predicate places. [2024-11-19 13:57:39,229 INFO L471 AbstractCegarLoop]: Abstraction has has 75 places, 59 transitions, 291 flow [2024-11-19 13:57:39,229 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 15.333333333333334) internal successors, (276), 18 states have internal predecessors, (276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 13:57:39,229 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 13:57:39,229 INFO L204 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 13:57:39,243 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-19 13:57:39,433 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 13:57:39,434 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 12 more)] === [2024-11-19 13:57:39,434 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 13:57:39,434 INFO L85 PathProgramCache]: Analyzing trace with hash -1973490000, now seen corresponding path program 2 times [2024-11-19 13:57:39,434 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 13:57:39,434 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1068131688] [2024-11-19 13:57:39,434 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 13:57:39,435 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 13:57:39,447 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-19 13:57:39,448 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 13:57:39,526 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-19 13:57:39,526 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 13:57:39,527 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1068131688] [2024-11-19 13:57:39,527 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1068131688] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 13:57:39,527 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 13:57:39,527 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-19 13:57:39,527 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1573340704] [2024-11-19 13:57:39,527 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 13:57:39,527 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 13:57:39,528 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 13:57:39,528 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 13:57:39,528 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-19 13:57:39,532 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 39 [2024-11-19 13:57:39,533 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 75 places, 59 transitions, 291 flow. Second operand has 6 states, 6 states have (on average 15.666666666666666) internal successors, (94), 6 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 13:57:39,533 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 13:57:39,533 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 39 [2024-11-19 13:57:39,533 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 13:57:39,664 INFO L124 PetriNetUnfolderBase]: 145/409 cut-off events. [2024-11-19 13:57:39,664 INFO L125 PetriNetUnfolderBase]: For 223/237 co-relation queries the response was YES. [2024-11-19 13:57:39,665 INFO L83 FinitePrefix]: Finished finitePrefix Result has 990 conditions, 409 events. 145/409 cut-off events. For 223/237 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 1875 event pairs, 36 based on Foata normal form. 26/394 useless extension candidates. Maximal degree in co-relation 885. Up to 236 conditions per place. [2024-11-19 13:57:39,666 INFO L140 encePairwiseOnDemand]: 30/39 looper letters, 63 selfloop transitions, 14 changer transitions 0/89 dead transitions. [2024-11-19 13:57:39,666 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 81 places, 89 transitions, 567 flow [2024-11-19 13:57:39,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-19 13:57:39,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-19 13:57:39,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 162 transitions. [2024-11-19 13:57:39,667 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5934065934065934 [2024-11-19 13:57:39,667 INFO L175 Difference]: Start difference. First operand has 75 places, 59 transitions, 291 flow. Second operand 7 states and 162 transitions. [2024-11-19 13:57:39,667 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 81 places, 89 transitions, 567 flow [2024-11-19 13:57:39,670 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 77 places, 89 transitions, 557 flow, removed 1 selfloop flow, removed 4 redundant places. [2024-11-19 13:57:39,671 INFO L231 Difference]: Finished difference. Result has 82 places, 67 transitions, 379 flow [2024-11-19 13:57:39,671 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=39, PETRI_DIFFERENCE_MINUEND_FLOW=281, PETRI_DIFFERENCE_MINUEND_PLACES=71, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=59, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=379, PETRI_PLACES=82, PETRI_TRANSITIONS=67} [2024-11-19 13:57:39,671 INFO L277 CegarLoopForPetriNet]: 39 programPoint places, 43 predicate places. [2024-11-19 13:57:39,672 INFO L471 AbstractCegarLoop]: Abstraction has has 82 places, 67 transitions, 379 flow [2024-11-19 13:57:39,672 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.666666666666666) internal successors, (94), 6 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 13:57:39,672 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 13:57:39,672 INFO L204 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 13:57:39,672 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-19 13:57:39,672 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 12 more)] === [2024-11-19 13:57:39,673 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 13:57:39,673 INFO L85 PathProgramCache]: Analyzing trace with hash -1703182031, now seen corresponding path program 1 times [2024-11-19 13:57:39,673 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 13:57:39,673 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [277704164] [2024-11-19 13:57:39,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 13:57:39,673 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 13:57:39,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 13:57:39,906 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 13:57:39,906 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 13:57:39,906 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [277704164] [2024-11-19 13:57:39,906 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [277704164] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 13:57:39,906 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1450994397] [2024-11-19 13:57:39,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 13:57:39,907 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 13:57:39,907 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 13:57:39,908 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) [2024-11-19 13:57:39,909 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-19 13:57:39,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 13:57:39,981 INFO L255 TraceCheckSpWp]: Trace formula consists of 252 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-19 13:57:39,982 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 13:57:40,026 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 13:57:40,027 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 13:57:40,168 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 13:57:40,169 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1450994397] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 13:57:40,169 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 13:57:40,171 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16, 16] total 22 [2024-11-19 13:57:40,172 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1668995371] [2024-11-19 13:57:40,172 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 13:57:40,172 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-19 13:57:40,172 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 13:57:40,173 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-19 13:57:40,173 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2024-11-19 13:57:40,195 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 39 [2024-11-19 13:57:40,195 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 82 places, 67 transitions, 379 flow. Second operand has 23 states, 23 states have (on average 15.304347826086957) internal successors, (352), 23 states have internal predecessors, (352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 13:57:40,195 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 13:57:40,195 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 39 [2024-11-19 13:57:40,195 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 13:57:40,376 INFO L124 PetriNetUnfolderBase]: 125/393 cut-off events. [2024-11-19 13:57:40,376 INFO L125 PetriNetUnfolderBase]: For 367/379 co-relation queries the response was YES. [2024-11-19 13:57:40,377 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1099 conditions, 393 events. 125/393 cut-off events. For 367/379 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 1821 event pairs, 52 based on Foata normal form. 3/361 useless extension candidates. Maximal degree in co-relation 956. Up to 248 conditions per place. [2024-11-19 13:57:40,378 INFO L140 encePairwiseOnDemand]: 35/39 looper letters, 38 selfloop transitions, 21 changer transitions 0/73 dead transitions. [2024-11-19 13:57:40,378 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 102 places, 73 transitions, 551 flow [2024-11-19 13:57:40,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-19 13:57:40,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2024-11-19 13:57:40,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 339 transitions. [2024-11-19 13:57:40,380 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4139194139194139 [2024-11-19 13:57:40,380 INFO L175 Difference]: Start difference. First operand has 82 places, 67 transitions, 379 flow. Second operand 21 states and 339 transitions. [2024-11-19 13:57:40,380 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 102 places, 73 transitions, 551 flow [2024-11-19 13:57:40,382 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 101 places, 73 transitions, 541 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-19 13:57:40,383 INFO L231 Difference]: Finished difference. Result has 104 places, 73 transitions, 480 flow [2024-11-19 13:57:40,383 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=39, PETRI_DIFFERENCE_MINUEND_FLOW=369, PETRI_DIFFERENCE_MINUEND_PLACES=81, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=67, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=51, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=480, PETRI_PLACES=104, PETRI_TRANSITIONS=73} [2024-11-19 13:57:40,384 INFO L277 CegarLoopForPetriNet]: 39 programPoint places, 65 predicate places. [2024-11-19 13:57:40,384 INFO L471 AbstractCegarLoop]: Abstraction has has 104 places, 73 transitions, 480 flow [2024-11-19 13:57:40,384 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 15.304347826086957) internal successors, (352), 23 states have internal predecessors, (352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 13:57:40,384 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 13:57:40,384 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 13:57:40,397 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-19 13:57:40,588 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 13:57:40,589 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 12 more)] === [2024-11-19 13:57:40,589 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 13:57:40,589 INFO L85 PathProgramCache]: Analyzing trace with hash 1870638318, now seen corresponding path program 2 times [2024-11-19 13:57:40,590 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 13:57:40,590 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1368249622] [2024-11-19 13:57:40,590 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 13:57:40,590 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 13:57:40,602 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-19 13:57:40,602 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 13:57:40,698 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-19 13:57:40,699 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 13:57:40,699 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1368249622] [2024-11-19 13:57:40,699 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1368249622] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 13:57:40,699 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 13:57:40,699 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-19 13:57:40,700 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [311410911] [2024-11-19 13:57:40,700 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 13:57:40,700 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 13:57:40,700 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 13:57:40,700 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 13:57:40,701 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-19 13:57:40,710 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 39 [2024-11-19 13:57:40,710 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 104 places, 73 transitions, 480 flow. Second operand has 6 states, 6 states have (on average 15.666666666666666) internal successors, (94), 6 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 13:57:40,711 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 13:57:40,711 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 39 [2024-11-19 13:57:40,711 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 13:57:40,861 INFO L124 PetriNetUnfolderBase]: 145/412 cut-off events. [2024-11-19 13:57:40,861 INFO L125 PetriNetUnfolderBase]: For 425/441 co-relation queries the response was YES. [2024-11-19 13:57:40,862 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1188 conditions, 412 events. 145/412 cut-off events. For 425/441 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 1867 event pairs, 34 based on Foata normal form. 15/387 useless extension candidates. Maximal degree in co-relation 1017. Up to 236 conditions per place. [2024-11-19 13:57:40,863 INFO L140 encePairwiseOnDemand]: 32/39 looper letters, 71 selfloop transitions, 13 changer transitions 0/96 dead transitions. [2024-11-19 13:57:40,863 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 110 places, 96 transitions, 744 flow [2024-11-19 13:57:40,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-19 13:57:40,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-19 13:57:40,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 159 transitions. [2024-11-19 13:57:40,864 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5824175824175825 [2024-11-19 13:57:40,864 INFO L175 Difference]: Start difference. First operand has 104 places, 73 transitions, 480 flow. Second operand 7 states and 159 transitions. [2024-11-19 13:57:40,864 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 110 places, 96 transitions, 744 flow [2024-11-19 13:57:40,867 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 97 places, 96 transitions, 701 flow, removed 1 selfloop flow, removed 13 redundant places. [2024-11-19 13:57:40,868 INFO L231 Difference]: Finished difference. Result has 99 places, 74 transitions, 483 flow [2024-11-19 13:57:40,868 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=39, PETRI_DIFFERENCE_MINUEND_FLOW=437, PETRI_DIFFERENCE_MINUEND_PLACES=91, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=73, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=60, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=483, PETRI_PLACES=99, PETRI_TRANSITIONS=74} [2024-11-19 13:57:40,869 INFO L277 CegarLoopForPetriNet]: 39 programPoint places, 60 predicate places. [2024-11-19 13:57:40,869 INFO L471 AbstractCegarLoop]: Abstraction has has 99 places, 74 transitions, 483 flow [2024-11-19 13:57:40,869 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.666666666666666) internal successors, (94), 6 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 13:57:40,869 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 13:57:40,869 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 13:57:40,869 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-19 13:57:40,869 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 12 more)] === [2024-11-19 13:57:40,870 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 13:57:40,870 INFO L85 PathProgramCache]: Analyzing trace with hash 985825139, now seen corresponding path program 1 times [2024-11-19 13:57:40,870 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 13:57:40,870 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [207640443] [2024-11-19 13:57:40,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 13:57:40,870 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 13:57:40,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 13:57:40,923 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-19 13:57:40,924 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 13:57:40,924 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [207640443] [2024-11-19 13:57:40,924 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [207640443] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 13:57:40,924 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 13:57:40,924 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 13:57:40,924 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1248066040] [2024-11-19 13:57:40,924 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 13:57:40,925 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 13:57:40,925 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 13:57:40,925 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 13:57:40,925 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-19 13:57:40,928 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 39 [2024-11-19 13:57:40,928 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 99 places, 74 transitions, 483 flow. Second operand has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 13:57:40,928 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 13:57:40,928 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 39 [2024-11-19 13:57:40,928 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 13:57:41,030 INFO L124 PetriNetUnfolderBase]: 208/562 cut-off events. [2024-11-19 13:57:41,030 INFO L125 PetriNetUnfolderBase]: For 609/643 co-relation queries the response was YES. [2024-11-19 13:57:41,031 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1648 conditions, 562 events. 208/562 cut-off events. For 609/643 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 2580 event pairs, 49 based on Foata normal form. 12/529 useless extension candidates. Maximal degree in co-relation 1495. Up to 250 conditions per place. [2024-11-19 13:57:41,033 INFO L140 encePairwiseOnDemand]: 33/39 looper letters, 89 selfloop transitions, 4 changer transitions 0/105 dead transitions. [2024-11-19 13:57:41,033 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 102 places, 105 transitions, 789 flow [2024-11-19 13:57:41,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 13:57:41,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-19 13:57:41,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 109 transitions. [2024-11-19 13:57:41,034 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6987179487179487 [2024-11-19 13:57:41,034 INFO L175 Difference]: Start difference. First operand has 99 places, 74 transitions, 483 flow. Second operand 4 states and 109 transitions. [2024-11-19 13:57:41,034 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 102 places, 105 transitions, 789 flow [2024-11-19 13:57:41,037 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 97 places, 105 transitions, 765 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-19 13:57:41,038 INFO L231 Difference]: Finished difference. Result has 99 places, 76 transitions, 486 flow [2024-11-19 13:57:41,038 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=39, PETRI_DIFFERENCE_MINUEND_FLOW=459, PETRI_DIFFERENCE_MINUEND_PLACES=94, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=74, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=70, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=486, PETRI_PLACES=99, PETRI_TRANSITIONS=76} [2024-11-19 13:57:41,039 INFO L277 CegarLoopForPetriNet]: 39 programPoint places, 60 predicate places. [2024-11-19 13:57:41,039 INFO L471 AbstractCegarLoop]: Abstraction has has 99 places, 76 transitions, 486 flow [2024-11-19 13:57:41,039 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 13:57:41,039 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 13:57:41,039 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 13:57:41,039 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-19 13:57:41,039 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 12 more)] === [2024-11-19 13:57:41,040 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 13:57:41,040 INFO L85 PathProgramCache]: Analyzing trace with hash 1073587094, now seen corresponding path program 1 times [2024-11-19 13:57:41,041 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 13:57:41,041 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [809360332] [2024-11-19 13:57:41,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 13:57:41,041 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 13:57:41,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 13:57:41,088 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-19 13:57:41,088 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 13:57:41,089 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [809360332] [2024-11-19 13:57:41,089 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [809360332] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 13:57:41,089 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 13:57:41,089 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 13:57:41,090 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1654857829] [2024-11-19 13:57:41,090 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 13:57:41,090 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 13:57:41,090 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 13:57:41,090 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 13:57:41,091 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-19 13:57:41,095 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 39 [2024-11-19 13:57:41,095 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 99 places, 76 transitions, 486 flow. Second operand has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 13:57:41,095 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 13:57:41,096 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 39 [2024-11-19 13:57:41,096 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 13:57:41,235 INFO L124 PetriNetUnfolderBase]: 318/861 cut-off events. [2024-11-19 13:57:41,235 INFO L125 PetriNetUnfolderBase]: For 988/1034 co-relation queries the response was YES. [2024-11-19 13:57:41,237 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2477 conditions, 861 events. 318/861 cut-off events. For 988/1034 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 4371 event pairs, 142 based on Foata normal form. 19/845 useless extension candidates. Maximal degree in co-relation 2323. Up to 400 conditions per place. [2024-11-19 13:57:41,240 INFO L140 encePairwiseOnDemand]: 33/39 looper letters, 95 selfloop transitions, 4 changer transitions 0/111 dead transitions. [2024-11-19 13:57:41,240 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 102 places, 111 transitions, 854 flow [2024-11-19 13:57:41,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 13:57:41,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-19 13:57:41,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 109 transitions. [2024-11-19 13:57:41,241 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6987179487179487 [2024-11-19 13:57:41,241 INFO L175 Difference]: Start difference. First operand has 99 places, 76 transitions, 486 flow. Second operand 4 states and 109 transitions. [2024-11-19 13:57:41,241 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 102 places, 111 transitions, 854 flow [2024-11-19 13:57:41,244 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 101 places, 111 transitions, 846 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-19 13:57:41,245 INFO L231 Difference]: Finished difference. Result has 103 places, 78 transitions, 510 flow [2024-11-19 13:57:41,246 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=39, PETRI_DIFFERENCE_MINUEND_FLOW=483, PETRI_DIFFERENCE_MINUEND_PLACES=98, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=76, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=72, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=510, PETRI_PLACES=103, PETRI_TRANSITIONS=78} [2024-11-19 13:57:41,246 INFO L277 CegarLoopForPetriNet]: 39 programPoint places, 64 predicate places. [2024-11-19 13:57:41,246 INFO L471 AbstractCegarLoop]: Abstraction has has 103 places, 78 transitions, 510 flow [2024-11-19 13:57:41,246 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 13:57:41,246 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 13:57:41,247 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 13:57:41,247 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-19 13:57:41,247 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 12 more)] === [2024-11-19 13:57:41,247 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 13:57:41,247 INFO L85 PathProgramCache]: Analyzing trace with hash -1621961295, now seen corresponding path program 1 times [2024-11-19 13:57:41,247 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 13:57:41,247 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [630925229] [2024-11-19 13:57:41,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 13:57:41,248 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 13:57:41,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 13:57:41,819 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-19 13:57:41,819 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 13:57:41,819 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [630925229] [2024-11-19 13:57:41,819 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [630925229] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 13:57:41,819 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 13:57:41,819 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-19 13:57:41,819 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1372167867] [2024-11-19 13:57:41,820 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 13:57:41,820 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-19 13:57:41,820 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 13:57:41,820 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-19 13:57:41,820 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2024-11-19 13:57:41,832 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 39 [2024-11-19 13:57:41,832 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 103 places, 78 transitions, 510 flow. Second operand has 10 states, 10 states have (on average 15.5) internal successors, (155), 10 states have internal predecessors, (155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 13:57:41,832 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 13:57:41,832 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 39 [2024-11-19 13:57:41,832 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 13:57:42,231 INFO L124 PetriNetUnfolderBase]: 393/1048 cut-off events. [2024-11-19 13:57:42,232 INFO L125 PetriNetUnfolderBase]: For 1491/1515 co-relation queries the response was YES. [2024-11-19 13:57:42,235 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3265 conditions, 1048 events. 393/1048 cut-off events. For 1491/1515 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 5751 event pairs, 175 based on Foata normal form. 36/1080 useless extension candidates. Maximal degree in co-relation 3109. Up to 674 conditions per place. [2024-11-19 13:57:42,239 INFO L140 encePairwiseOnDemand]: 26/39 looper letters, 88 selfloop transitions, 40 changer transitions 0/140 dead transitions. [2024-11-19 13:57:42,239 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 117 places, 140 transitions, 1101 flow [2024-11-19 13:57:42,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-19 13:57:42,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-11-19 13:57:42,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 304 transitions. [2024-11-19 13:57:42,241 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5196581196581197 [2024-11-19 13:57:42,242 INFO L175 Difference]: Start difference. First operand has 103 places, 78 transitions, 510 flow. Second operand 15 states and 304 transitions. [2024-11-19 13:57:42,242 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 117 places, 140 transitions, 1101 flow [2024-11-19 13:57:42,247 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 116 places, 140 transitions, 1096 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-19 13:57:42,248 INFO L231 Difference]: Finished difference. Result has 126 places, 108 transitions, 861 flow [2024-11-19 13:57:42,249 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=39, PETRI_DIFFERENCE_MINUEND_FLOW=507, PETRI_DIFFERENCE_MINUEND_PLACES=102, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=78, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=55, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=861, PETRI_PLACES=126, PETRI_TRANSITIONS=108} [2024-11-19 13:57:42,249 INFO L277 CegarLoopForPetriNet]: 39 programPoint places, 87 predicate places. [2024-11-19 13:57:42,249 INFO L471 AbstractCegarLoop]: Abstraction has has 126 places, 108 transitions, 861 flow [2024-11-19 13:57:42,249 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 15.5) internal successors, (155), 10 states have internal predecessors, (155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 13:57:42,250 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 13:57:42,250 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 13:57:42,250 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-19 13:57:42,250 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 12 more)] === [2024-11-19 13:57:42,250 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 13:57:42,250 INFO L85 PathProgramCache]: Analyzing trace with hash 1157466582, now seen corresponding path program 1 times [2024-11-19 13:57:42,251 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 13:57:42,251 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1406071914] [2024-11-19 13:57:42,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 13:57:42,251 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 13:57:42,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 13:57:42,546 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-19 13:57:42,547 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 13:57:42,548 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1406071914] [2024-11-19 13:57:42,548 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1406071914] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 13:57:42,548 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 13:57:42,548 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-19 13:57:42,548 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [572010468] [2024-11-19 13:57:42,548 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 13:57:42,548 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-19 13:57:42,549 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 13:57:42,549 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-19 13:57:42,549 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-19 13:57:42,549 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 39 [2024-11-19 13:57:42,550 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 126 places, 108 transitions, 861 flow. Second operand has 8 states, 8 states have (on average 17.75) internal successors, (142), 8 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 13:57:42,550 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 13:57:42,550 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 39 [2024-11-19 13:57:42,550 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 13:57:42,892 INFO L124 PetriNetUnfolderBase]: 444/1233 cut-off events. [2024-11-19 13:57:42,892 INFO L125 PetriNetUnfolderBase]: For 3177/3227 co-relation queries the response was YES. [2024-11-19 13:57:42,897 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4590 conditions, 1233 events. 444/1233 cut-off events. For 3177/3227 co-relation queries the response was YES. Maximal size of possible extension queue 59. Compared 7264 event pairs, 136 based on Foata normal form. 11/1241 useless extension candidates. Maximal degree in co-relation 4423. Up to 367 conditions per place. [2024-11-19 13:57:42,901 INFO L140 encePairwiseOnDemand]: 27/39 looper letters, 167 selfloop transitions, 20 changer transitions 0/201 dead transitions. [2024-11-19 13:57:42,901 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 133 places, 201 transitions, 1894 flow [2024-11-19 13:57:42,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-19 13:57:42,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-19 13:57:42,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 207 transitions. [2024-11-19 13:57:42,904 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6634615384615384 [2024-11-19 13:57:42,904 INFO L175 Difference]: Start difference. First operand has 126 places, 108 transitions, 861 flow. Second operand 8 states and 207 transitions. [2024-11-19 13:57:42,904 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 133 places, 201 transitions, 1894 flow [2024-11-19 13:57:42,916 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 131 places, 201 transitions, 1852 flow, removed 9 selfloop flow, removed 2 redundant places. [2024-11-19 13:57:42,920 INFO L231 Difference]: Finished difference. Result has 136 places, 124 transitions, 1020 flow [2024-11-19 13:57:42,921 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=39, PETRI_DIFFERENCE_MINUEND_FLOW=840, PETRI_DIFFERENCE_MINUEND_PLACES=124, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=108, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=92, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=1020, PETRI_PLACES=136, PETRI_TRANSITIONS=124} [2024-11-19 13:57:42,921 INFO L277 CegarLoopForPetriNet]: 39 programPoint places, 97 predicate places. [2024-11-19 13:57:42,921 INFO L471 AbstractCegarLoop]: Abstraction has has 136 places, 124 transitions, 1020 flow [2024-11-19 13:57:42,922 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 17.75) internal successors, (142), 8 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 13:57:42,922 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 13:57:42,922 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 13:57:42,922 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-19 13:57:42,922 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 12 more)] === [2024-11-19 13:57:42,923 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 13:57:42,925 INFO L85 PathProgramCache]: Analyzing trace with hash -628640448, now seen corresponding path program 2 times [2024-11-19 13:57:42,926 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 13:57:42,926 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [313371580] [2024-11-19 13:57:42,926 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 13:57:42,926 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 13:57:42,940 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-19 13:57:42,940 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 13:57:43,098 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-19 13:57:43,098 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 13:57:43,098 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [313371580] [2024-11-19 13:57:43,098 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [313371580] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 13:57:43,099 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 13:57:43,099 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-19 13:57:43,099 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1143350911] [2024-11-19 13:57:43,099 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 13:57:43,099 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-19 13:57:43,099 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 13:57:43,100 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-19 13:57:43,100 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-11-19 13:57:43,100 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 39 [2024-11-19 13:57:43,100 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 136 places, 124 transitions, 1020 flow. Second operand has 8 states, 8 states have (on average 17.75) internal successors, (142), 8 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 13:57:43,100 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 13:57:43,100 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 39 [2024-11-19 13:57:43,100 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 13:57:43,440 INFO L124 PetriNetUnfolderBase]: 487/1322 cut-off events. [2024-11-19 13:57:43,440 INFO L125 PetriNetUnfolderBase]: For 4400/4470 co-relation queries the response was YES. [2024-11-19 13:57:43,446 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5487 conditions, 1322 events. 487/1322 cut-off events. For 4400/4470 co-relation queries the response was YES. Maximal size of possible extension queue 70. Compared 7971 event pairs, 139 based on Foata normal form. 17/1330 useless extension candidates. Maximal degree in co-relation 5315. Up to 422 conditions per place. [2024-11-19 13:57:43,451 INFO L140 encePairwiseOnDemand]: 26/39 looper letters, 166 selfloop transitions, 36 changer transitions 0/216 dead transitions. [2024-11-19 13:57:43,451 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 143 places, 216 transitions, 2127 flow [2024-11-19 13:57:43,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-19 13:57:43,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-19 13:57:43,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 203 transitions. [2024-11-19 13:57:43,452 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6506410256410257 [2024-11-19 13:57:43,452 INFO L175 Difference]: Start difference. First operand has 136 places, 124 transitions, 1020 flow. Second operand 8 states and 203 transitions. [2024-11-19 13:57:43,452 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 143 places, 216 transitions, 2127 flow [2024-11-19 13:57:43,462 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 142 places, 216 transitions, 2116 flow, removed 5 selfloop flow, removed 1 redundant places. [2024-11-19 13:57:43,465 INFO L231 Difference]: Finished difference. Result has 147 places, 140 transitions, 1302 flow [2024-11-19 13:57:43,465 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=39, PETRI_DIFFERENCE_MINUEND_FLOW=1013, PETRI_DIFFERENCE_MINUEND_PLACES=135, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=124, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=92, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=1302, PETRI_PLACES=147, PETRI_TRANSITIONS=140} [2024-11-19 13:57:43,465 INFO L277 CegarLoopForPetriNet]: 39 programPoint places, 108 predicate places. [2024-11-19 13:57:43,465 INFO L471 AbstractCegarLoop]: Abstraction has has 147 places, 140 transitions, 1302 flow [2024-11-19 13:57:43,466 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 17.75) internal successors, (142), 8 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 13:57:43,466 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 13:57:43,466 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 13:57:43,466 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-19 13:57:43,466 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 12 more)] === [2024-11-19 13:57:43,466 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 13:57:43,466 INFO L85 PathProgramCache]: Analyzing trace with hash 1326086529, now seen corresponding path program 2 times [2024-11-19 13:57:43,466 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 13:57:43,467 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [341979831] [2024-11-19 13:57:43,467 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 13:57:43,467 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 13:57:43,480 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-19 13:57:43,481 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 13:57:43,716 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-19 13:57:43,717 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 13:57:43,717 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [341979831] [2024-11-19 13:57:43,717 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [341979831] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 13:57:43,717 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 13:57:43,717 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-19 13:57:43,717 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [820563549] [2024-11-19 13:57:43,717 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 13:57:43,718 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-19 13:57:43,719 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 13:57:43,719 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-19 13:57:43,719 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2024-11-19 13:57:43,733 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 39 [2024-11-19 13:57:43,733 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 147 places, 140 transitions, 1302 flow. Second operand has 10 states, 10 states have (on average 15.5) internal successors, (155), 10 states have internal predecessors, (155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 13:57:43,733 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 13:57:43,733 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 39 [2024-11-19 13:57:43,733 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 13:57:44,246 INFO L124 PetriNetUnfolderBase]: 615/1622 cut-off events. [2024-11-19 13:57:44,246 INFO L125 PetriNetUnfolderBase]: For 8334/8381 co-relation queries the response was YES. [2024-11-19 13:57:44,253 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7609 conditions, 1622 events. 615/1622 cut-off events. For 8334/8381 co-relation queries the response was YES. Maximal size of possible extension queue 85. Compared 10292 event pairs, 184 based on Foata normal form. 38/1655 useless extension candidates. Maximal degree in co-relation 7431. Up to 1004 conditions per place. [2024-11-19 13:57:44,260 INFO L140 encePairwiseOnDemand]: 27/39 looper letters, 142 selfloop transitions, 67 changer transitions 0/221 dead transitions. [2024-11-19 13:57:44,261 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 158 places, 221 transitions, 2474 flow [2024-11-19 13:57:44,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-19 13:57:44,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2024-11-19 13:57:44,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 256 transitions. [2024-11-19 13:57:44,262 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5470085470085471 [2024-11-19 13:57:44,262 INFO L175 Difference]: Start difference. First operand has 147 places, 140 transitions, 1302 flow. Second operand 12 states and 256 transitions. [2024-11-19 13:57:44,262 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 158 places, 221 transitions, 2474 flow [2024-11-19 13:57:44,281 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 155 places, 221 transitions, 2405 flow, removed 15 selfloop flow, removed 3 redundant places. [2024-11-19 13:57:44,286 INFO L231 Difference]: Finished difference. Result has 162 places, 175 transitions, 1847 flow [2024-11-19 13:57:44,286 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=39, PETRI_DIFFERENCE_MINUEND_FLOW=1259, PETRI_DIFFERENCE_MINUEND_PLACES=144, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=140, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=35, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=94, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=1847, PETRI_PLACES=162, PETRI_TRANSITIONS=175} [2024-11-19 13:57:44,286 INFO L277 CegarLoopForPetriNet]: 39 programPoint places, 123 predicate places. [2024-11-19 13:57:44,287 INFO L471 AbstractCegarLoop]: Abstraction has has 162 places, 175 transitions, 1847 flow [2024-11-19 13:57:44,287 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 15.5) internal successors, (155), 10 states have internal predecessors, (155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 13:57:44,287 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 13:57:44,287 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 13:57:44,287 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-19 13:57:44,287 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 12 more)] === [2024-11-19 13:57:44,287 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 13:57:44,287 INFO L85 PathProgramCache]: Analyzing trace with hash -651456534, now seen corresponding path program 3 times [2024-11-19 13:57:44,287 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 13:57:44,287 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2120715829] [2024-11-19 13:57:44,287 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-19 13:57:44,287 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 13:57:44,303 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2024-11-19 13:57:44,303 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 13:57:44,479 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-19 13:57:44,479 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 13:57:44,479 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2120715829] [2024-11-19 13:57:44,479 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2120715829] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 13:57:44,479 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 13:57:44,479 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-19 13:57:44,479 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [994607916] [2024-11-19 13:57:44,479 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 13:57:44,480 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-19 13:57:44,480 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 13:57:44,480 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-19 13:57:44,480 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-11-19 13:57:44,481 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 39 [2024-11-19 13:57:44,481 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 162 places, 175 transitions, 1847 flow. Second operand has 8 states, 8 states have (on average 17.75) internal successors, (142), 8 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 13:57:44,481 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 13:57:44,481 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 39 [2024-11-19 13:57:44,481 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 13:57:44,844 INFO L124 PetriNetUnfolderBase]: 575/1566 cut-off events. [2024-11-19 13:57:44,844 INFO L125 PetriNetUnfolderBase]: For 10513/10581 co-relation queries the response was YES. [2024-11-19 13:57:44,852 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8132 conditions, 1566 events. 575/1566 cut-off events. For 10513/10581 co-relation queries the response was YES. Maximal size of possible extension queue 84. Compared 9985 event pairs, 159 based on Foata normal form. 17/1575 useless extension candidates. Maximal degree in co-relation 7947. Up to 500 conditions per place. [2024-11-19 13:57:44,860 INFO L140 encePairwiseOnDemand]: 27/39 looper letters, 248 selfloop transitions, 35 changer transitions 0/297 dead transitions. [2024-11-19 13:57:44,860 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 169 places, 297 transitions, 3762 flow [2024-11-19 13:57:44,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-19 13:57:44,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-19 13:57:44,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 207 transitions. [2024-11-19 13:57:44,860 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6634615384615384 [2024-11-19 13:57:44,861 INFO L175 Difference]: Start difference. First operand has 162 places, 175 transitions, 1847 flow. Second operand 8 states and 207 transitions. [2024-11-19 13:57:44,861 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 169 places, 297 transitions, 3762 flow [2024-11-19 13:57:44,884 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 167 places, 297 transitions, 3693 flow, removed 24 selfloop flow, removed 2 redundant places. [2024-11-19 13:57:44,887 INFO L231 Difference]: Finished difference. Result has 172 places, 196 transitions, 2235 flow [2024-11-19 13:57:44,888 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=39, PETRI_DIFFERENCE_MINUEND_FLOW=1805, PETRI_DIFFERENCE_MINUEND_PLACES=160, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=175, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=143, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=2235, PETRI_PLACES=172, PETRI_TRANSITIONS=196} [2024-11-19 13:57:44,888 INFO L277 CegarLoopForPetriNet]: 39 programPoint places, 133 predicate places. [2024-11-19 13:57:44,888 INFO L471 AbstractCegarLoop]: Abstraction has has 172 places, 196 transitions, 2235 flow [2024-11-19 13:57:44,888 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 17.75) internal successors, (142), 8 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 13:57:44,888 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 13:57:44,888 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 13:57:44,888 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-19 13:57:44,888 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 12 more)] === [2024-11-19 13:57:44,889 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 13:57:44,889 INFO L85 PathProgramCache]: Analyzing trace with hash -1021024533, now seen corresponding path program 3 times [2024-11-19 13:57:44,889 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 13:57:44,889 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2006232786] [2024-11-19 13:57:44,889 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-19 13:57:44,889 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 13:57:44,899 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2024-11-19 13:57:44,899 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 13:57:45,084 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-19 13:57:45,085 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 13:57:45,085 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2006232786] [2024-11-19 13:57:45,085 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2006232786] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 13:57:45,085 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 13:57:45,085 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-19 13:57:45,085 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1434728894] [2024-11-19 13:57:45,085 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 13:57:45,085 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-19 13:57:45,085 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 13:57:45,086 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-19 13:57:45,086 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2024-11-19 13:57:45,095 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 39 [2024-11-19 13:57:45,096 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 172 places, 196 transitions, 2235 flow. Second operand has 10 states, 10 states have (on average 15.5) internal successors, (155), 10 states have internal predecessors, (155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 13:57:45,096 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 13:57:45,096 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 39 [2024-11-19 13:57:45,096 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 13:57:45,750 INFO L124 PetriNetUnfolderBase]: 738/1911 cut-off events. [2024-11-19 13:57:45,751 INFO L125 PetriNetUnfolderBase]: For 18561/18616 co-relation queries the response was YES. [2024-11-19 13:57:45,759 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10764 conditions, 1911 events. 738/1911 cut-off events. For 18561/18616 co-relation queries the response was YES. Maximal size of possible extension queue 104. Compared 12591 event pairs, 174 based on Foata normal form. 88/1994 useless extension candidates. Maximal degree in co-relation 10573. Up to 1116 conditions per place. [2024-11-19 13:57:45,768 INFO L140 encePairwiseOnDemand]: 26/39 looper letters, 207 selfloop transitions, 141 changer transitions 0/360 dead transitions. [2024-11-19 13:57:45,769 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 192 places, 360 transitions, 4901 flow [2024-11-19 13:57:45,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-19 13:57:45,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2024-11-19 13:57:45,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 436 transitions. [2024-11-19 13:57:45,772 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5323565323565324 [2024-11-19 13:57:45,773 INFO L175 Difference]: Start difference. First operand has 172 places, 196 transitions, 2235 flow. Second operand 21 states and 436 transitions. [2024-11-19 13:57:45,773 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 192 places, 360 transitions, 4901 flow [2024-11-19 13:57:45,805 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 191 places, 360 transitions, 4852 flow, removed 24 selfloop flow, removed 1 redundant places. [2024-11-19 13:57:45,809 INFO L231 Difference]: Finished difference. Result has 205 places, 284 transitions, 3911 flow [2024-11-19 13:57:45,810 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=39, PETRI_DIFFERENCE_MINUEND_FLOW=2210, PETRI_DIFFERENCE_MINUEND_PLACES=171, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=196, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=69, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=116, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=3911, PETRI_PLACES=205, PETRI_TRANSITIONS=284} [2024-11-19 13:57:45,810 INFO L277 CegarLoopForPetriNet]: 39 programPoint places, 166 predicate places. [2024-11-19 13:57:45,810 INFO L471 AbstractCegarLoop]: Abstraction has has 205 places, 284 transitions, 3911 flow [2024-11-19 13:57:45,810 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 15.5) internal successors, (155), 10 states have internal predecessors, (155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 13:57:45,810 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 13:57:45,810 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 13:57:45,810 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-19 13:57:45,810 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 12 more)] === [2024-11-19 13:57:45,811 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 13:57:45,811 INFO L85 PathProgramCache]: Analyzing trace with hash -1790069025, now seen corresponding path program 4 times [2024-11-19 13:57:45,811 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 13:57:45,811 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [834971163] [2024-11-19 13:57:45,811 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-19 13:57:45,811 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 13:57:45,834 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-19 13:57:45,834 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 13:57:46,086 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-19 13:57:46,086 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 13:57:46,086 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [834971163] [2024-11-19 13:57:46,087 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [834971163] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 13:57:46,087 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 13:57:46,087 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-19 13:57:46,087 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [484637332] [2024-11-19 13:57:46,087 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 13:57:46,087 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-19 13:57:46,087 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 13:57:46,087 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-19 13:57:46,087 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2024-11-19 13:57:46,095 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 39 [2024-11-19 13:57:46,096 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 205 places, 284 transitions, 3911 flow. Second operand has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 9 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 13:57:46,096 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 13:57:46,096 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 39 [2024-11-19 13:57:46,096 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 13:57:47,025 INFO L124 PetriNetUnfolderBase]: 1513/3404 cut-off events. [2024-11-19 13:57:47,025 INFO L125 PetriNetUnfolderBase]: For 51849/51888 co-relation queries the response was YES. [2024-11-19 13:57:47,045 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21634 conditions, 3404 events. 1513/3404 cut-off events. For 51849/51888 co-relation queries the response was YES. Maximal size of possible extension queue 155. Compared 23334 event pairs, 178 based on Foata normal form. 29/3432 useless extension candidates. Maximal degree in co-relation 21428. Up to 840 conditions per place. [2024-11-19 13:57:47,058 INFO L140 encePairwiseOnDemand]: 26/39 looper letters, 365 selfloop transitions, 182 changer transitions 0/555 dead transitions. [2024-11-19 13:57:47,058 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 223 places, 555 transitions, 8258 flow [2024-11-19 13:57:47,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-19 13:57:47,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2024-11-19 13:57:47,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 369 transitions. [2024-11-19 13:57:47,059 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4979757085020243 [2024-11-19 13:57:47,059 INFO L175 Difference]: Start difference. First operand has 205 places, 284 transitions, 3911 flow. Second operand 19 states and 369 transitions. [2024-11-19 13:57:47,059 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 223 places, 555 transitions, 8258 flow [2024-11-19 13:57:47,188 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 221 places, 555 transitions, 7882 flow, removed 176 selfloop flow, removed 2 redundant places. [2024-11-19 13:57:47,193 INFO L231 Difference]: Finished difference. Result has 231 places, 362 transitions, 5261 flow [2024-11-19 13:57:47,194 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=39, PETRI_DIFFERENCE_MINUEND_FLOW=3632, PETRI_DIFFERENCE_MINUEND_PLACES=203, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=284, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=111, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=156, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=5261, PETRI_PLACES=231, PETRI_TRANSITIONS=362} [2024-11-19 13:57:47,194 INFO L277 CegarLoopForPetriNet]: 39 programPoint places, 192 predicate places. [2024-11-19 13:57:47,194 INFO L471 AbstractCegarLoop]: Abstraction has has 231 places, 362 transitions, 5261 flow [2024-11-19 13:57:47,194 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 9 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 13:57:47,194 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 13:57:47,194 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 13:57:47,195 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-19 13:57:47,195 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 12 more)] === [2024-11-19 13:57:47,195 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 13:57:47,195 INFO L85 PathProgramCache]: Analyzing trace with hash -930599849, now seen corresponding path program 5 times [2024-11-19 13:57:47,195 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 13:57:47,195 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [240145840] [2024-11-19 13:57:47,195 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-19 13:57:47,195 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 13:57:47,214 INFO L227 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) [2024-11-19 13:57:47,214 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 13:57:47,792 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 135 trivial. 0 not checked. [2024-11-19 13:57:47,792 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 13:57:47,792 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [240145840] [2024-11-19 13:57:47,792 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [240145840] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 13:57:47,792 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [679265531] [2024-11-19 13:57:47,792 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-19 13:57:47,792 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 13:57:47,792 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 13:57:47,794 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) [2024-11-19 13:57:47,798 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-19 13:57:47,900 INFO L227 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) [2024-11-19 13:57:47,901 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 13:57:47,902 INFO L255 TraceCheckSpWp]: Trace formula consists of 317 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-11-19 13:57:47,905 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 13:57:47,994 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2024-11-19 13:57:48,051 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-19 13:57:48,051 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 13:57:48,051 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [679265531] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 13:57:48,051 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 13:57:48,051 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [9] total 16 [2024-11-19 13:57:48,052 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [333051094] [2024-11-19 13:57:48,052 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 13:57:48,052 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-19 13:57:48,052 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 13:57:48,052 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-19 13:57:48,052 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=230, Unknown=0, NotChecked=0, Total=272 [2024-11-19 13:57:48,052 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 39 [2024-11-19 13:57:48,053 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 231 places, 362 transitions, 5261 flow. Second operand has 8 states, 8 states have (on average 17.75) internal successors, (142), 8 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 13:57:48,053 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 13:57:48,053 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 39 [2024-11-19 13:57:48,053 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 13:57:48,677 INFO L124 PetriNetUnfolderBase]: 932/2458 cut-off events. [2024-11-19 13:57:48,677 INFO L125 PetriNetUnfolderBase]: For 42852/42968 co-relation queries the response was YES. [2024-11-19 13:57:48,695 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17256 conditions, 2458 events. 932/2458 cut-off events. For 42852/42968 co-relation queries the response was YES. Maximal size of possible extension queue 121. Compared 17518 event pairs, 131 based on Foata normal form. 42/2482 useless extension candidates. Maximal degree in co-relation 17039. Up to 849 conditions per place. [2024-11-19 13:57:48,705 INFO L140 encePairwiseOnDemand]: 28/39 looper letters, 341 selfloop transitions, 87 changer transitions 0/446 dead transitions. [2024-11-19 13:57:48,705 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 231 places, 446 transitions, 7079 flow [2024-11-19 13:57:48,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-19 13:57:48,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-19 13:57:48,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 196 transitions. [2024-11-19 13:57:48,706 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6282051282051282 [2024-11-19 13:57:48,706 INFO L175 Difference]: Start difference. First operand has 231 places, 362 transitions, 5261 flow. Second operand 8 states and 196 transitions. [2024-11-19 13:57:48,707 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 231 places, 446 transitions, 7079 flow [2024-11-19 13:57:48,814 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 222 places, 446 transitions, 6823 flow, removed 78 selfloop flow, removed 9 redundant places. [2024-11-19 13:57:48,819 INFO L231 Difference]: Finished difference. Result has 226 places, 338 transitions, 4977 flow [2024-11-19 13:57:48,819 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=39, PETRI_DIFFERENCE_MINUEND_FLOW=4503, PETRI_DIFFERENCE_MINUEND_PLACES=215, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=325, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=76, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=240, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=4977, PETRI_PLACES=226, PETRI_TRANSITIONS=338} [2024-11-19 13:57:48,820 INFO L277 CegarLoopForPetriNet]: 39 programPoint places, 187 predicate places. [2024-11-19 13:57:48,820 INFO L471 AbstractCegarLoop]: Abstraction has has 226 places, 338 transitions, 4977 flow [2024-11-19 13:57:48,820 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 17.75) internal successors, (142), 8 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 13:57:48,820 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 13:57:48,820 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 13:57:48,833 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-19 13:57:49,020 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 13:57:49,020 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 12 more)] === [2024-11-19 13:57:49,021 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 13:57:49,021 INFO L85 PathProgramCache]: Analyzing trace with hash 1272820377, now seen corresponding path program 6 times [2024-11-19 13:57:49,021 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 13:57:49,021 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [808858904] [2024-11-19 13:57:49,021 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-19 13:57:49,021 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 13:57:49,034 INFO L227 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2024-11-19 13:57:49,034 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 13:57:49,277 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-19 13:57:49,277 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 13:57:49,277 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [808858904] [2024-11-19 13:57:49,277 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [808858904] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 13:57:49,277 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 13:57:49,277 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-19 13:57:49,277 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [527864572] [2024-11-19 13:57:49,277 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 13:57:49,278 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-19 13:57:49,278 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 13:57:49,278 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-19 13:57:49,278 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2024-11-19 13:57:49,286 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 39 [2024-11-19 13:57:49,287 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 226 places, 338 transitions, 4977 flow. Second operand has 10 states, 10 states have (on average 15.5) internal successors, (155), 10 states have internal predecessors, (155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 13:57:49,287 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 13:57:49,287 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 39 [2024-11-19 13:57:49,287 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 13:57:50,084 INFO L124 PetriNetUnfolderBase]: 1015/2632 cut-off events. [2024-11-19 13:57:50,084 INFO L125 PetriNetUnfolderBase]: For 51032/51094 co-relation queries the response was YES. [2024-11-19 13:57:50,100 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19018 conditions, 2632 events. 1015/2632 cut-off events. For 51032/51094 co-relation queries the response was YES. Maximal size of possible extension queue 135. Compared 18864 event pairs, 289 based on Foata normal form. 32/2640 useless extension candidates. Maximal degree in co-relation 18801. Up to 1814 conditions per place. [2024-11-19 13:57:50,112 INFO L140 encePairwiseOnDemand]: 26/39 looper letters, 309 selfloop transitions, 78 changer transitions 0/403 dead transitions. [2024-11-19 13:57:50,112 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 243 places, 403 transitions, 6669 flow [2024-11-19 13:57:50,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-19 13:57:50,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2024-11-19 13:57:50,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 353 transitions. [2024-11-19 13:57:50,113 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5028490028490028 [2024-11-19 13:57:50,113 INFO L175 Difference]: Start difference. First operand has 226 places, 338 transitions, 4977 flow. Second operand 18 states and 353 transitions. [2024-11-19 13:57:50,113 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 243 places, 403 transitions, 6669 flow [2024-11-19 13:57:50,236 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 241 places, 403 transitions, 6588 flow, removed 14 selfloop flow, removed 2 redundant places. [2024-11-19 13:57:50,243 INFO L231 Difference]: Finished difference. Result has 248 places, 372 transitions, 5705 flow [2024-11-19 13:57:50,243 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=39, PETRI_DIFFERENCE_MINUEND_FLOW=4900, PETRI_DIFFERENCE_MINUEND_PLACES=224, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=338, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=50, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=275, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=5705, PETRI_PLACES=248, PETRI_TRANSITIONS=372} [2024-11-19 13:57:50,244 INFO L277 CegarLoopForPetriNet]: 39 programPoint places, 209 predicate places. [2024-11-19 13:57:50,244 INFO L471 AbstractCegarLoop]: Abstraction has has 248 places, 372 transitions, 5705 flow [2024-11-19 13:57:50,245 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 15.5) internal successors, (155), 10 states have internal predecessors, (155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 13:57:50,245 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 13:57:50,245 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 13:57:50,245 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-19 13:57:50,245 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 12 more)] === [2024-11-19 13:57:50,246 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 13:57:50,246 INFO L85 PathProgramCache]: Analyzing trace with hash 2024692476, now seen corresponding path program 4 times [2024-11-19 13:57:50,246 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 13:57:50,246 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [43546691] [2024-11-19 13:57:50,246 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-19 13:57:50,246 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 13:57:50,265 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-19 13:57:50,266 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 13:57:50,455 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-19 13:57:50,456 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 13:57:50,456 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [43546691] [2024-11-19 13:57:50,456 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [43546691] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 13:57:50,456 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 13:57:50,456 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-19 13:57:50,456 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1698035178] [2024-11-19 13:57:50,456 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 13:57:50,456 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-19 13:57:50,456 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 13:57:50,457 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-19 13:57:50,457 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-19 13:57:50,457 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 39 [2024-11-19 13:57:50,457 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 248 places, 372 transitions, 5705 flow. Second operand has 7 states, 7 states have (on average 18.0) internal successors, (126), 7 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 13:57:50,457 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 13:57:50,457 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 39 [2024-11-19 13:57:50,458 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 13:57:51,210 INFO L124 PetriNetUnfolderBase]: 886/2346 cut-off events. [2024-11-19 13:57:51,210 INFO L125 PetriNetUnfolderBase]: For 47094/47190 co-relation queries the response was YES. [2024-11-19 13:57:51,228 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17331 conditions, 2346 events. 886/2346 cut-off events. For 47094/47190 co-relation queries the response was YES. Maximal size of possible extension queue 119. Compared 16530 event pairs, 169 based on Foata normal form. 14/2341 useless extension candidates. Maximal degree in co-relation 17106. Up to 829 conditions per place. [2024-11-19 13:57:51,239 INFO L140 encePairwiseOnDemand]: 29/39 looper letters, 341 selfloop transitions, 67 changer transitions 0/426 dead transitions. [2024-11-19 13:57:51,239 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 247 places, 426 transitions, 7064 flow [2024-11-19 13:57:51,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-19 13:57:51,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-19 13:57:51,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 182 transitions. [2024-11-19 13:57:51,242 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6666666666666666 [2024-11-19 13:57:51,242 INFO L175 Difference]: Start difference. First operand has 248 places, 372 transitions, 5705 flow. Second operand 7 states and 182 transitions. [2024-11-19 13:57:51,242 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 247 places, 426 transitions, 7064 flow [2024-11-19 13:57:51,363 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 243 places, 426 transitions, 6928 flow, removed 61 selfloop flow, removed 4 redundant places. [2024-11-19 13:57:51,369 INFO L231 Difference]: Finished difference. Result has 246 places, 351 transitions, 5388 flow [2024-11-19 13:57:51,369 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=39, PETRI_DIFFERENCE_MINUEND_FLOW=5097, PETRI_DIFFERENCE_MINUEND_PLACES=237, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=345, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=62, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=281, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=5388, PETRI_PLACES=246, PETRI_TRANSITIONS=351} [2024-11-19 13:57:51,369 INFO L277 CegarLoopForPetriNet]: 39 programPoint places, 207 predicate places. [2024-11-19 13:57:51,369 INFO L471 AbstractCegarLoop]: Abstraction has has 246 places, 351 transitions, 5388 flow [2024-11-19 13:57:51,370 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 18.0) internal successors, (126), 7 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 13:57:51,370 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 13:57:51,370 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 13:57:51,370 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-19 13:57:51,370 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 12 more)] === [2024-11-19 13:57:51,370 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 13:57:51,370 INFO L85 PathProgramCache]: Analyzing trace with hash 1457203126, now seen corresponding path program 5 times [2024-11-19 13:57:51,370 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 13:57:51,370 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [701603137] [2024-11-19 13:57:51,370 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-19 13:57:51,371 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 13:57:51,393 INFO L227 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) [2024-11-19 13:57:51,393 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 13:57:51,753 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 135 trivial. 0 not checked. [2024-11-19 13:57:51,753 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 13:57:51,753 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [701603137] [2024-11-19 13:57:51,753 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [701603137] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 13:57:51,754 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1396645647] [2024-11-19 13:57:51,754 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-19 13:57:51,754 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 13:57:51,754 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 13:57:51,756 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) [2024-11-19 13:57:51,758 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-19 13:57:51,864 INFO L227 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) [2024-11-19 13:57:51,864 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 13:57:51,865 INFO L255 TraceCheckSpWp]: Trace formula consists of 317 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-11-19 13:57:51,868 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 13:57:51,957 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2024-11-19 13:57:51,969 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-19 13:57:51,969 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 13:57:51,969 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1396645647] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 13:57:51,969 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 13:57:51,970 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [8] total 14 [2024-11-19 13:57:51,970 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1121129610] [2024-11-19 13:57:51,970 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 13:57:51,970 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-19 13:57:51,971 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 13:57:51,971 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-19 13:57:51,971 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=171, Unknown=0, NotChecked=0, Total=210 [2024-11-19 13:57:51,971 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 39 [2024-11-19 13:57:51,971 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 246 places, 351 transitions, 5388 flow. Second operand has 8 states, 8 states have (on average 17.75) internal successors, (142), 8 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 13:57:51,972 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 13:57:51,972 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 39 [2024-11-19 13:57:51,972 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 13:57:52,631 INFO L124 PetriNetUnfolderBase]: 930/2467 cut-off events. [2024-11-19 13:57:52,632 INFO L125 PetriNetUnfolderBase]: For 49755/49851 co-relation queries the response was YES. [2024-11-19 13:57:52,652 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18402 conditions, 2467 events. 930/2467 cut-off events. For 49755/49851 co-relation queries the response was YES. Maximal size of possible extension queue 122. Compared 17735 event pairs, 216 based on Foata normal form. 21/2468 useless extension candidates. Maximal degree in co-relation 18177. Up to 831 conditions per place. [2024-11-19 13:57:52,663 INFO L140 encePairwiseOnDemand]: 26/39 looper letters, 371 selfloop transitions, 83 changer transitions 0/472 dead transitions. [2024-11-19 13:57:52,663 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 255 places, 472 transitions, 7972 flow [2024-11-19 13:57:52,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-19 13:57:52,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-19 13:57:52,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 253 transitions. [2024-11-19 13:57:52,664 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6487179487179487 [2024-11-19 13:57:52,664 INFO L175 Difference]: Start difference. First operand has 246 places, 351 transitions, 5388 flow. Second operand 10 states and 253 transitions. [2024-11-19 13:57:52,664 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 255 places, 472 transitions, 7972 flow [2024-11-19 13:57:52,803 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 252 places, 472 transitions, 7793 flow, removed 38 selfloop flow, removed 3 redundant places. [2024-11-19 13:57:52,809 INFO L231 Difference]: Finished difference. Result has 258 places, 368 transitions, 5745 flow [2024-11-19 13:57:52,810 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=39, PETRI_DIFFERENCE_MINUEND_FLOW=4974, PETRI_DIFFERENCE_MINUEND_PLACES=243, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=339, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=59, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=267, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=5745, PETRI_PLACES=258, PETRI_TRANSITIONS=368} [2024-11-19 13:57:52,810 INFO L277 CegarLoopForPetriNet]: 39 programPoint places, 219 predicate places. [2024-11-19 13:57:52,810 INFO L471 AbstractCegarLoop]: Abstraction has has 258 places, 368 transitions, 5745 flow [2024-11-19 13:57:52,810 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 17.75) internal successors, (142), 8 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 13:57:52,810 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 13:57:52,810 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 13:57:52,824 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-19 13:57:53,014 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 13:57:53,015 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 12 more)] === [2024-11-19 13:57:53,015 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 13:57:53,016 INFO L85 PathProgramCache]: Analyzing trace with hash -1470808627, now seen corresponding path program 7 times [2024-11-19 13:57:53,016 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 13:57:53,016 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [495520967] [2024-11-19 13:57:53,016 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-19 13:57:53,016 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 13:57:53,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 13:57:53,392 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-19 13:57:53,392 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 13:57:53,392 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [495520967] [2024-11-19 13:57:53,392 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [495520967] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 13:57:53,393 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 13:57:53,393 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-19 13:57:53,393 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2025325441] [2024-11-19 13:57:53,393 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 13:57:53,393 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-19 13:57:53,393 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 13:57:53,395 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-19 13:57:53,395 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2024-11-19 13:57:53,403 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 39 [2024-11-19 13:57:53,403 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 258 places, 368 transitions, 5745 flow. Second operand has 10 states, 10 states have (on average 15.5) internal successors, (155), 10 states have internal predecessors, (155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 13:57:53,403 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 13:57:53,404 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 39 [2024-11-19 13:57:53,404 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 13:57:54,252 INFO L124 PetriNetUnfolderBase]: 1036/2694 cut-off events. [2024-11-19 13:57:54,252 INFO L125 PetriNetUnfolderBase]: For 61756/61809 co-relation queries the response was YES. [2024-11-19 13:57:54,276 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20577 conditions, 2694 events. 1036/2694 cut-off events. For 61756/61809 co-relation queries the response was YES. Maximal size of possible extension queue 124. Compared 19702 event pairs, 277 based on Foata normal form. 38/2724 useless extension candidates. Maximal degree in co-relation 20345. Up to 1792 conditions per place. [2024-11-19 13:57:54,287 INFO L140 encePairwiseOnDemand]: 26/39 looper letters, 319 selfloop transitions, 142 changer transitions 0/477 dead transitions. [2024-11-19 13:57:54,288 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 280 places, 477 transitions, 8511 flow [2024-11-19 13:57:54,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-11-19 13:57:54,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2024-11-19 13:57:54,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 454 transitions. [2024-11-19 13:57:54,289 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5061315496098104 [2024-11-19 13:57:54,289 INFO L175 Difference]: Start difference. First operand has 258 places, 368 transitions, 5745 flow. Second operand 23 states and 454 transitions. [2024-11-19 13:57:54,289 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 280 places, 477 transitions, 8511 flow [2024-11-19 13:57:54,437 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 278 places, 477 transitions, 8350 flow, removed 65 selfloop flow, removed 2 redundant places. [2024-11-19 13:57:54,443 INFO L231 Difference]: Finished difference. Result has 285 places, 421 transitions, 7043 flow [2024-11-19 13:57:54,443 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=39, PETRI_DIFFERENCE_MINUEND_FLOW=5612, PETRI_DIFFERENCE_MINUEND_PLACES=256, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=368, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=100, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=259, PETRI_DIFFERENCE_SUBTRAHEND_STATES=23, PETRI_FLOW=7043, PETRI_PLACES=285, PETRI_TRANSITIONS=421} [2024-11-19 13:57:54,443 INFO L277 CegarLoopForPetriNet]: 39 programPoint places, 246 predicate places. [2024-11-19 13:57:54,443 INFO L471 AbstractCegarLoop]: Abstraction has has 285 places, 421 transitions, 7043 flow [2024-11-19 13:57:54,444 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 15.5) internal successors, (155), 10 states have internal predecessors, (155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 13:57:54,444 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 13:57:54,444 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 13:57:54,444 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-19 13:57:54,444 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 12 more)] === [2024-11-19 13:57:54,444 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 13:57:54,444 INFO L85 PathProgramCache]: Analyzing trace with hash 1649750578, now seen corresponding path program 6 times [2024-11-19 13:57:54,445 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 13:57:54,445 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1703636671] [2024-11-19 13:57:54,445 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-19 13:57:54,445 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 13:57:54,460 INFO L227 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2024-11-19 13:57:54,460 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 13:57:54,582 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-19 13:57:54,583 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 13:57:54,583 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1703636671] [2024-11-19 13:57:54,583 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1703636671] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 13:57:54,583 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 13:57:54,583 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-19 13:57:54,583 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1082186227] [2024-11-19 13:57:54,583 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 13:57:54,583 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-19 13:57:54,585 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 13:57:54,585 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-19 13:57:54,585 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-11-19 13:57:54,586 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 39 [2024-11-19 13:57:54,634 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 285 places, 421 transitions, 7043 flow. Second operand has 8 states, 8 states have (on average 17.75) internal successors, (142), 8 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 13:57:54,634 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 13:57:54,634 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 39 [2024-11-19 13:57:54,634 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 13:57:55,232 INFO L124 PetriNetUnfolderBase]: 934/2473 cut-off events. [2024-11-19 13:57:55,232 INFO L125 PetriNetUnfolderBase]: For 59864/59969 co-relation queries the response was YES. [2024-11-19 13:57:55,254 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19703 conditions, 2473 events. 934/2473 cut-off events. For 59864/59969 co-relation queries the response was YES. Maximal size of possible extension queue 115. Compared 17780 event pairs, 228 based on Foata normal form. 12/2466 useless extension candidates. Maximal degree in co-relation 19564. Up to 986 conditions per place. [2024-11-19 13:57:55,264 INFO L140 encePairwiseOnDemand]: 26/39 looper letters, 416 selfloop transitions, 61 changer transitions 0/495 dead transitions. [2024-11-19 13:57:55,265 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 292 places, 495 transitions, 9026 flow [2024-11-19 13:57:55,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-19 13:57:55,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-19 13:57:55,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 210 transitions. [2024-11-19 13:57:55,268 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6730769230769231 [2024-11-19 13:57:55,268 INFO L175 Difference]: Start difference. First operand has 285 places, 421 transitions, 7043 flow. Second operand 8 states and 210 transitions. [2024-11-19 13:57:55,268 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 292 places, 495 transitions, 9026 flow [2024-11-19 13:57:55,454 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 286 places, 495 transitions, 8603 flow, removed 162 selfloop flow, removed 6 redundant places. [2024-11-19 13:57:55,461 INFO L231 Difference]: Finished difference. Result has 289 places, 423 transitions, 6839 flow [2024-11-19 13:57:55,462 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=39, PETRI_DIFFERENCE_MINUEND_FLOW=6439, PETRI_DIFFERENCE_MINUEND_PLACES=279, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=412, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=52, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=355, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=6839, PETRI_PLACES=289, PETRI_TRANSITIONS=423} [2024-11-19 13:57:55,463 INFO L277 CegarLoopForPetriNet]: 39 programPoint places, 250 predicate places. [2024-11-19 13:57:55,463 INFO L471 AbstractCegarLoop]: Abstraction has has 289 places, 423 transitions, 6839 flow [2024-11-19 13:57:55,463 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 17.75) internal successors, (142), 8 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 13:57:55,463 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 13:57:55,463 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 13:57:55,463 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-19 13:57:55,463 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 12 more)] === [2024-11-19 13:57:55,464 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 13:57:55,464 INFO L85 PathProgramCache]: Analyzing trace with hash 897136622, now seen corresponding path program 7 times [2024-11-19 13:57:55,464 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 13:57:55,464 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [797862438] [2024-11-19 13:57:55,464 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-19 13:57:55,464 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 13:57:55,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 13:57:55,703 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-19 13:57:55,703 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 13:57:55,703 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [797862438] [2024-11-19 13:57:55,703 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [797862438] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 13:57:55,703 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 13:57:55,703 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-19 13:57:55,704 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1041952005] [2024-11-19 13:57:55,704 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 13:57:55,704 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-19 13:57:55,704 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 13:57:55,704 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-19 13:57:55,704 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2024-11-19 13:57:55,705 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 39 [2024-11-19 13:57:55,705 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 289 places, 423 transitions, 6839 flow. Second operand has 9 states, 9 states have (on average 17.555555555555557) internal successors, (158), 9 states have internal predecessors, (158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 13:57:55,705 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 13:57:55,705 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 39 [2024-11-19 13:57:55,705 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 13:57:56,762 INFO L124 PetriNetUnfolderBase]: 1054/2764 cut-off events. [2024-11-19 13:57:56,763 INFO L125 PetriNetUnfolderBase]: For 66680/66845 co-relation queries the response was YES. [2024-11-19 13:57:56,792 INFO L83 FinitePrefix]: Finished finitePrefix Result has 22005 conditions, 2764 events. 1054/2764 cut-off events. For 66680/66845 co-relation queries the response was YES. Maximal size of possible extension queue 116. Compared 20242 event pairs, 118 based on Foata normal form. 39/2792 useless extension candidates. Maximal degree in co-relation 21865. Up to 649 conditions per place. [2024-11-19 13:57:56,808 INFO L140 encePairwiseOnDemand]: 28/39 looper letters, 366 selfloop transitions, 201 changer transitions 0/585 dead transitions. [2024-11-19 13:57:56,808 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 300 places, 585 transitions, 10410 flow [2024-11-19 13:57:56,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-19 13:57:56,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2024-11-19 13:57:56,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 288 transitions. [2024-11-19 13:57:56,809 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6153846153846154 [2024-11-19 13:57:56,809 INFO L175 Difference]: Start difference. First operand has 289 places, 423 transitions, 6839 flow. Second operand 12 states and 288 transitions. [2024-11-19 13:57:56,810 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 300 places, 585 transitions, 10410 flow [2024-11-19 13:57:57,078 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 296 places, 585 transitions, 10262 flow, removed 34 selfloop flow, removed 4 redundant places. [2024-11-19 13:57:57,087 INFO L231 Difference]: Finished difference. Result has 302 places, 475 transitions, 8380 flow [2024-11-19 13:57:57,088 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=39, PETRI_DIFFERENCE_MINUEND_FLOW=6703, PETRI_DIFFERENCE_MINUEND_PLACES=285, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=423, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=154, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=262, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=8380, PETRI_PLACES=302, PETRI_TRANSITIONS=475} [2024-11-19 13:57:57,088 INFO L277 CegarLoopForPetriNet]: 39 programPoint places, 263 predicate places. [2024-11-19 13:57:57,089 INFO L471 AbstractCegarLoop]: Abstraction has has 302 places, 475 transitions, 8380 flow [2024-11-19 13:57:57,089 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 17.555555555555557) internal successors, (158), 9 states have internal predecessors, (158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 13:57:57,089 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 13:57:57,089 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 13:57:57,089 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-19 13:57:57,089 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 12 more)] === [2024-11-19 13:57:57,090 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 13:57:57,090 INFO L85 PathProgramCache]: Analyzing trace with hash -1575087058, now seen corresponding path program 8 times [2024-11-19 13:57:57,090 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 13:57:57,090 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1142351217] [2024-11-19 13:57:57,090 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 13:57:57,090 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 13:57:57,102 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-19 13:57:57,102 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 13:57:57,248 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-19 13:57:57,248 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 13:57:57,248 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1142351217] [2024-11-19 13:57:57,248 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1142351217] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 13:57:57,249 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 13:57:57,249 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-19 13:57:57,249 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [97663819] [2024-11-19 13:57:57,249 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 13:57:57,249 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-19 13:57:57,249 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 13:57:57,250 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-19 13:57:57,250 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-11-19 13:57:57,250 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 39 [2024-11-19 13:57:57,251 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 302 places, 475 transitions, 8380 flow. Second operand has 8 states, 8 states have (on average 17.75) internal successors, (142), 8 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 13:57:57,251 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 13:57:57,251 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 39 [2024-11-19 13:57:57,251 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 13:57:58,225 INFO L124 PetriNetUnfolderBase]: 1031/2775 cut-off events. [2024-11-19 13:57:58,226 INFO L125 PetriNetUnfolderBase]: For 70812/70938 co-relation queries the response was YES. [2024-11-19 13:57:58,248 INFO L83 FinitePrefix]: Finished finitePrefix Result has 22664 conditions, 2775 events. 1031/2775 cut-off events. For 70812/70938 co-relation queries the response was YES. Maximal size of possible extension queue 117. Compared 20694 event pairs, 231 based on Foata normal form. 33/2799 useless extension candidates. Maximal degree in co-relation 22514. Up to 1063 conditions per place. [2024-11-19 13:57:58,258 INFO L140 encePairwiseOnDemand]: 26/39 looper letters, 435 selfloop transitions, 87 changer transitions 0/540 dead transitions. [2024-11-19 13:57:58,258 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 303 places, 540 transitions, 10400 flow [2024-11-19 13:57:58,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-19 13:57:58,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-19 13:57:58,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 208 transitions. [2024-11-19 13:57:58,259 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6666666666666666 [2024-11-19 13:57:58,259 INFO L175 Difference]: Start difference. First operand has 302 places, 475 transitions, 8380 flow. Second operand 8 states and 208 transitions. [2024-11-19 13:57:58,259 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 303 places, 540 transitions, 10400 flow [2024-11-19 13:57:58,484 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 288 places, 540 transitions, 9835 flow, removed 191 selfloop flow, removed 15 redundant places. [2024-11-19 13:57:58,491 INFO L231 Difference]: Finished difference. Result has 292 places, 465 transitions, 8058 flow [2024-11-19 13:57:58,491 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=39, PETRI_DIFFERENCE_MINUEND_FLOW=7442, PETRI_DIFFERENCE_MINUEND_PLACES=281, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=448, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=71, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=365, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=8058, PETRI_PLACES=292, PETRI_TRANSITIONS=465} [2024-11-19 13:57:58,492 INFO L277 CegarLoopForPetriNet]: 39 programPoint places, 253 predicate places. [2024-11-19 13:57:58,492 INFO L471 AbstractCegarLoop]: Abstraction has has 292 places, 465 transitions, 8058 flow [2024-11-19 13:57:58,492 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 17.75) internal successors, (142), 8 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 13:57:58,492 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 13:57:58,492 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 13:57:58,492 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-11-19 13:57:58,492 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 12 more)] === [2024-11-19 13:57:58,493 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 13:57:58,493 INFO L85 PathProgramCache]: Analyzing trace with hash -1326814828, now seen corresponding path program 9 times [2024-11-19 13:57:58,493 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 13:57:58,493 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2082685291] [2024-11-19 13:57:58,493 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-19 13:57:58,493 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 13:57:58,508 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2024-11-19 13:57:58,508 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 13:57:58,651 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-19 13:57:58,651 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 13:57:58,651 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2082685291] [2024-11-19 13:57:58,652 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2082685291] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 13:57:58,652 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 13:57:58,652 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-19 13:57:58,652 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [329363855] [2024-11-19 13:57:58,652 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 13:57:58,652 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-19 13:57:58,652 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 13:57:58,653 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-19 13:57:58,653 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-19 13:57:58,653 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 39 [2024-11-19 13:57:58,653 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 292 places, 465 transitions, 8058 flow. Second operand has 8 states, 8 states have (on average 17.75) internal successors, (142), 8 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 13:57:58,653 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 13:57:58,653 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 39 [2024-11-19 13:57:58,653 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 13:57:59,321 INFO L124 PetriNetUnfolderBase]: 971/2575 cut-off events. [2024-11-19 13:57:59,321 INFO L125 PetriNetUnfolderBase]: For 57728/57874 co-relation queries the response was YES. [2024-11-19 13:57:59,344 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20336 conditions, 2575 events. 971/2575 cut-off events. For 57728/57874 co-relation queries the response was YES. Maximal size of possible extension queue 111. Compared 18817 event pairs, 223 based on Foata normal form. 19/2587 useless extension candidates. Maximal degree in co-relation 20198. Up to 1028 conditions per place. [2024-11-19 13:57:59,355 INFO L140 encePairwiseOnDemand]: 27/39 looper letters, 387 selfloop transitions, 113 changer transitions 0/518 dead transitions. [2024-11-19 13:57:59,356 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 297 places, 518 transitions, 9904 flow [2024-11-19 13:57:59,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-19 13:57:59,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-19 13:57:59,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 202 transitions. [2024-11-19 13:57:59,357 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6474358974358975 [2024-11-19 13:57:59,357 INFO L175 Difference]: Start difference. First operand has 292 places, 465 transitions, 8058 flow. Second operand 8 states and 202 transitions. [2024-11-19 13:57:59,357 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 297 places, 518 transitions, 9904 flow [2024-11-19 13:57:59,561 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 292 places, 518 transitions, 9645 flow, removed 99 selfloop flow, removed 5 redundant places. [2024-11-19 13:57:59,568 INFO L231 Difference]: Finished difference. Result has 296 places, 432 transitions, 7706 flow [2024-11-19 13:57:59,569 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=39, PETRI_DIFFERENCE_MINUEND_FLOW=7188, PETRI_DIFFERENCE_MINUEND_PLACES=285, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=423, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=106, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=312, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=7706, PETRI_PLACES=296, PETRI_TRANSITIONS=432} [2024-11-19 13:57:59,569 INFO L277 CegarLoopForPetriNet]: 39 programPoint places, 257 predicate places. [2024-11-19 13:57:59,570 INFO L471 AbstractCegarLoop]: Abstraction has has 296 places, 432 transitions, 7706 flow [2024-11-19 13:57:59,570 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 17.75) internal successors, (142), 8 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 13:57:59,570 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 13:57:59,570 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 13:57:59,570 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-11-19 13:57:59,570 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 12 more)] === [2024-11-19 13:57:59,571 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 13:57:59,571 INFO L85 PathProgramCache]: Analyzing trace with hash 607308706, now seen corresponding path program 10 times [2024-11-19 13:57:59,571 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 13:57:59,571 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [840854890] [2024-11-19 13:57:59,571 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-19 13:57:59,571 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 13:57:59,588 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-19 13:57:59,589 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 13:57:59,790 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-19 13:57:59,790 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 13:57:59,790 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [840854890] [2024-11-19 13:57:59,790 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [840854890] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 13:57:59,790 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 13:57:59,791 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-19 13:57:59,791 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2092808482] [2024-11-19 13:57:59,791 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 13:57:59,791 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-19 13:57:59,791 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 13:57:59,791 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-19 13:57:59,792 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-19 13:57:59,792 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 39 [2024-11-19 13:57:59,792 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 296 places, 432 transitions, 7706 flow. Second operand has 7 states, 7 states have (on average 18.0) internal successors, (126), 7 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 13:57:59,792 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 13:57:59,792 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 39 [2024-11-19 13:57:59,792 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 13:58:00,472 INFO L124 PetriNetUnfolderBase]: 936/2536 cut-off events. [2024-11-19 13:58:00,472 INFO L125 PetriNetUnfolderBase]: For 52989/53112 co-relation queries the response was YES. [2024-11-19 13:58:00,495 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19572 conditions, 2536 events. 936/2536 cut-off events. For 52989/53112 co-relation queries the response was YES. Maximal size of possible extension queue 111. Compared 18570 event pairs, 237 based on Foata normal form. 18/2545 useless extension candidates. Maximal degree in co-relation 19361. Up to 966 conditions per place. [2024-11-19 13:58:00,506 INFO L140 encePairwiseOnDemand]: 27/39 looper letters, 415 selfloop transitions, 73 changer transitions 0/506 dead transitions. [2024-11-19 13:58:00,506 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 302 places, 506 transitions, 9802 flow [2024-11-19 13:58:00,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-19 13:58:00,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-19 13:58:00,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 194 transitions. [2024-11-19 13:58:00,507 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7106227106227107 [2024-11-19 13:58:00,508 INFO L175 Difference]: Start difference. First operand has 296 places, 432 transitions, 7706 flow. Second operand 7 states and 194 transitions. [2024-11-19 13:58:00,508 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 302 places, 506 transitions, 9802 flow [2024-11-19 13:58:00,711 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 299 places, 506 transitions, 9681 flow, removed 40 selfloop flow, removed 3 redundant places. [2024-11-19 13:58:00,718 INFO L231 Difference]: Finished difference. Result has 302 places, 441 transitions, 8040 flow [2024-11-19 13:58:00,719 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=39, PETRI_DIFFERENCE_MINUEND_FLOW=7530, PETRI_DIFFERENCE_MINUEND_PLACES=293, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=428, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=61, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=358, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=8040, PETRI_PLACES=302, PETRI_TRANSITIONS=441} [2024-11-19 13:58:00,719 INFO L277 CegarLoopForPetriNet]: 39 programPoint places, 263 predicate places. [2024-11-19 13:58:00,719 INFO L471 AbstractCegarLoop]: Abstraction has has 302 places, 441 transitions, 8040 flow [2024-11-19 13:58:00,719 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 18.0) internal successors, (126), 7 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 13:58:00,719 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 13:58:00,719 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 13:58:00,719 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-11-19 13:58:00,720 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 12 more)] === [2024-11-19 13:58:00,720 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 13:58:00,720 INFO L85 PathProgramCache]: Analyzing trace with hash 2048000353, now seen corresponding path program 8 times [2024-11-19 13:58:00,720 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 13:58:00,720 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [973254368] [2024-11-19 13:58:00,720 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 13:58:00,720 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 13:58:00,729 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-19 13:58:00,730 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 13:58:00,971 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-19 13:58:00,971 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 13:58:00,972 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [973254368] [2024-11-19 13:58:00,972 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [973254368] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 13:58:00,972 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 13:58:00,972 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-19 13:58:00,972 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1495123064] [2024-11-19 13:58:00,972 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 13:58:00,972 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-19 13:58:00,972 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 13:58:00,972 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-19 13:58:00,973 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2024-11-19 13:58:00,982 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 39 [2024-11-19 13:58:00,983 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 302 places, 441 transitions, 8040 flow. Second operand has 10 states, 10 states have (on average 15.5) internal successors, (155), 10 states have internal predecessors, (155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 13:58:00,983 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 13:58:00,983 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 39 [2024-11-19 13:58:00,983 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 13:58:02,066 INFO L124 PetriNetUnfolderBase]: 1002/2622 cut-off events. [2024-11-19 13:58:02,067 INFO L125 PetriNetUnfolderBase]: For 61609/61671 co-relation queries the response was YES. [2024-11-19 13:58:02,091 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20653 conditions, 2622 events. 1002/2622 cut-off events. For 61609/61671 co-relation queries the response was YES. Maximal size of possible extension queue 116. Compared 19042 event pairs, 293 based on Foata normal form. 32/2652 useless extension candidates. Maximal degree in co-relation 20452. Up to 1852 conditions per place. [2024-11-19 13:58:02,102 INFO L140 encePairwiseOnDemand]: 26/39 looper letters, 367 selfloop transitions, 108 changer transitions 0/491 dead transitions. [2024-11-19 13:58:02,103 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 322 places, 491 transitions, 9725 flow [2024-11-19 13:58:02,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-19 13:58:02,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2024-11-19 13:58:02,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 404 transitions. [2024-11-19 13:58:02,104 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4932844932844933 [2024-11-19 13:58:02,104 INFO L175 Difference]: Start difference. First operand has 302 places, 441 transitions, 8040 flow. Second operand 21 states and 404 transitions. [2024-11-19 13:58:02,104 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 322 places, 491 transitions, 9725 flow [2024-11-19 13:58:02,317 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 319 places, 491 transitions, 9562 flow, removed 31 selfloop flow, removed 3 redundant places. [2024-11-19 13:58:02,324 INFO L231 Difference]: Finished difference. Result has 323 places, 456 transitions, 8433 flow [2024-11-19 13:58:02,325 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=39, PETRI_DIFFERENCE_MINUEND_FLOW=7887, PETRI_DIFFERENCE_MINUEND_PLACES=299, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=441, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=96, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=337, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=8433, PETRI_PLACES=323, PETRI_TRANSITIONS=456} [2024-11-19 13:58:02,325 INFO L277 CegarLoopForPetriNet]: 39 programPoint places, 284 predicate places. [2024-11-19 13:58:02,325 INFO L471 AbstractCegarLoop]: Abstraction has has 323 places, 456 transitions, 8433 flow [2024-11-19 13:58:02,326 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 15.5) internal successors, (155), 10 states have internal predecessors, (155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 13:58:02,326 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 13:58:02,326 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 13:58:02,326 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-11-19 13:58:02,326 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 12 more)] === [2024-11-19 13:58:02,326 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 13:58:02,326 INFO L85 PathProgramCache]: Analyzing trace with hash -995754924, now seen corresponding path program 11 times [2024-11-19 13:58:02,326 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 13:58:02,327 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1802775462] [2024-11-19 13:58:02,327 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-19 13:58:02,327 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 13:58:02,342 INFO L227 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) [2024-11-19 13:58:02,342 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 13:58:02,630 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 135 trivial. 0 not checked. [2024-11-19 13:58:02,631 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 13:58:02,631 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1802775462] [2024-11-19 13:58:02,631 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1802775462] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 13:58:02,631 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2014753790] [2024-11-19 13:58:02,631 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-19 13:58:02,631 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 13:58:02,631 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 13:58:02,635 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 13:58:02,636 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-19 13:58:02,809 INFO L227 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) [2024-11-19 13:58:02,810 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 13:58:02,811 INFO L255 TraceCheckSpWp]: Trace formula consists of 317 conjuncts, 31 conjuncts are in the unsatisfiable core [2024-11-19 13:58:02,812 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 13:58:03,049 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-19 13:58:03,074 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2024-11-19 13:58:03,090 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-19 13:58:03,090 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 13:58:03,090 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2014753790] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 13:58:03,090 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 13:58:03,090 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [8] total 16 [2024-11-19 13:58:03,091 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [739184753] [2024-11-19 13:58:03,091 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 13:58:03,091 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-19 13:58:03,092 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 13:58:03,092 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-19 13:58:03,092 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=220, Unknown=0, NotChecked=0, Total=272 [2024-11-19 13:58:03,107 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 39 [2024-11-19 13:58:03,107 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 323 places, 456 transitions, 8433 flow. Second operand has 10 states, 10 states have (on average 12.6) internal successors, (126), 10 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 13:58:03,107 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 13:58:03,107 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 39 [2024-11-19 13:58:03,107 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 13:58:04,286 INFO L124 PetriNetUnfolderBase]: 1560/3587 cut-off events. [2024-11-19 13:58:04,287 INFO L125 PetriNetUnfolderBase]: For 89046/89097 co-relation queries the response was YES. [2024-11-19 13:58:04,321 INFO L83 FinitePrefix]: Finished finitePrefix Result has 28683 conditions, 3587 events. 1560/3587 cut-off events. For 89046/89097 co-relation queries the response was YES. Maximal size of possible extension queue 143. Compared 25431 event pairs, 430 based on Foata normal form. 37/3621 useless extension candidates. Maximal degree in co-relation 28536. Up to 1510 conditions per place. [2024-11-19 13:58:04,338 INFO L140 encePairwiseOnDemand]: 24/39 looper letters, 457 selfloop transitions, 193 changer transitions 0/661 dead transitions. [2024-11-19 13:58:04,338 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 340 places, 661 transitions, 13128 flow [2024-11-19 13:58:04,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-19 13:58:04,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2024-11-19 13:58:04,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 361 transitions. [2024-11-19 13:58:04,339 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5142450142450142 [2024-11-19 13:58:04,339 INFO L175 Difference]: Start difference. First operand has 323 places, 456 transitions, 8433 flow. Second operand 18 states and 361 transitions. [2024-11-19 13:58:04,339 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 340 places, 661 transitions, 13128 flow [2024-11-19 13:58:04,643 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 334 places, 661 transitions, 12949 flow, removed 57 selfloop flow, removed 6 redundant places. [2024-11-19 13:58:04,652 INFO L231 Difference]: Finished difference. Result has 347 places, 529 transitions, 10376 flow [2024-11-19 13:58:04,652 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=39, PETRI_DIFFERENCE_MINUEND_FLOW=8287, PETRI_DIFFERENCE_MINUEND_PLACES=317, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=456, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=121, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=315, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=10376, PETRI_PLACES=347, PETRI_TRANSITIONS=529} [2024-11-19 13:58:04,653 INFO L277 CegarLoopForPetriNet]: 39 programPoint places, 308 predicate places. [2024-11-19 13:58:04,653 INFO L471 AbstractCegarLoop]: Abstraction has has 347 places, 529 transitions, 10376 flow [2024-11-19 13:58:04,653 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 12.6) internal successors, (126), 10 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 13:58:04,653 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 13:58:04,653 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 13:58:04,666 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-11-19 13:58:04,854 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 13:58:04,854 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 12 more)] === [2024-11-19 13:58:04,855 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 13:58:04,855 INFO L85 PathProgramCache]: Analyzing trace with hash -1501350954, now seen corresponding path program 12 times [2024-11-19 13:58:04,855 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 13:58:04,855 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [779361316] [2024-11-19 13:58:04,855 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-19 13:58:04,855 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 13:58:04,865 INFO L227 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2024-11-19 13:58:04,865 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 13:58:04,990 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-19 13:58:04,991 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 13:58:04,991 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [779361316] [2024-11-19 13:58:04,991 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [779361316] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 13:58:04,991 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 13:58:04,991 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-19 13:58:04,991 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1821725482] [2024-11-19 13:58:04,991 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 13:58:04,992 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-19 13:58:04,992 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 13:58:04,992 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-19 13:58:04,992 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2024-11-19 13:58:04,992 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 39 [2024-11-19 13:58:04,993 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 347 places, 529 transitions, 10376 flow. Second operand has 8 states, 8 states have (on average 17.75) internal successors, (142), 8 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 13:58:04,993 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 13:58:04,993 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 39 [2024-11-19 13:58:04,993 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 13:58:05,926 INFO L124 PetriNetUnfolderBase]: 987/2625 cut-off events. [2024-11-19 13:58:05,926 INFO L125 PetriNetUnfolderBase]: For 74207/74476 co-relation queries the response was YES. [2024-11-19 13:58:05,946 INFO L83 FinitePrefix]: Finished finitePrefix Result has 22931 conditions, 2625 events. 987/2625 cut-off events. For 74207/74476 co-relation queries the response was YES. Maximal size of possible extension queue 113. Compared 19142 event pairs, 229 based on Foata normal form. 38/2652 useless extension candidates. Maximal degree in co-relation 22802. Up to 910 conditions per place. [2024-11-19 13:58:05,958 INFO L140 encePairwiseOnDemand]: 27/39 looper letters, 412 selfloop transitions, 116 changer transitions 0/552 dead transitions. [2024-11-19 13:58:05,958 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 346 places, 552 transitions, 11673 flow [2024-11-19 13:58:05,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-19 13:58:05,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-19 13:58:05,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 202 transitions. [2024-11-19 13:58:05,959 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6474358974358975 [2024-11-19 13:58:05,959 INFO L175 Difference]: Start difference. First operand has 347 places, 529 transitions, 10376 flow. Second operand 8 states and 202 transitions. [2024-11-19 13:58:05,959 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 346 places, 552 transitions, 11673 flow [2024-11-19 13:58:06,233 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 341 places, 552 transitions, 11475 flow, removed 70 selfloop flow, removed 5 redundant places. [2024-11-19 13:58:06,241 INFO L231 Difference]: Finished difference. Result has 341 places, 494 transitions, 9817 flow [2024-11-19 13:58:06,241 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=39, PETRI_DIFFERENCE_MINUEND_FLOW=9553, PETRI_DIFFERENCE_MINUEND_PLACES=334, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=493, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=115, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=378, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=9817, PETRI_PLACES=341, PETRI_TRANSITIONS=494} [2024-11-19 13:58:06,242 INFO L277 CegarLoopForPetriNet]: 39 programPoint places, 302 predicate places. [2024-11-19 13:58:06,242 INFO L471 AbstractCegarLoop]: Abstraction has has 341 places, 494 transitions, 9817 flow [2024-11-19 13:58:06,242 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 17.75) internal successors, (142), 8 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 13:58:06,242 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 13:58:06,242 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 13:58:06,242 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2024-11-19 13:58:06,242 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 12 more)] === [2024-11-19 13:58:06,243 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 13:58:06,243 INFO L85 PathProgramCache]: Analyzing trace with hash 2102040295, now seen corresponding path program 1 times [2024-11-19 13:58:06,243 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 13:58:06,243 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [595397725] [2024-11-19 13:58:06,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 13:58:06,243 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 13:58:06,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 13:58:06,544 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-19 13:58:06,545 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 13:58:06,545 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [595397725] [2024-11-19 13:58:06,545 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [595397725] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 13:58:06,545 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 13:58:06,545 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-19 13:58:06,545 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1618890228] [2024-11-19 13:58:06,545 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 13:58:06,545 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-19 13:58:06,545 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 13:58:06,546 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-19 13:58:06,546 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2024-11-19 13:58:06,575 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 39 [2024-11-19 13:58:06,576 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 341 places, 494 transitions, 9817 flow. Second operand has 10 states, 10 states have (on average 13.6) internal successors, (136), 10 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 13:58:06,576 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 13:58:06,576 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 39 [2024-11-19 13:58:06,576 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 13:58:07,695 INFO L124 PetriNetUnfolderBase]: 1512/3526 cut-off events. [2024-11-19 13:58:07,695 INFO L125 PetriNetUnfolderBase]: For 104625/104691 co-relation queries the response was YES. [2024-11-19 13:58:07,730 INFO L83 FinitePrefix]: Finished finitePrefix Result has 31132 conditions, 3526 events. 1512/3526 cut-off events. For 104625/104691 co-relation queries the response was YES. Maximal size of possible extension queue 160. Compared 25656 event pairs, 388 based on Foata normal form. 48/3570 useless extension candidates. Maximal degree in co-relation 31006. Up to 2259 conditions per place. [2024-11-19 13:58:07,746 INFO L140 encePairwiseOnDemand]: 27/39 looper letters, 522 selfloop transitions, 82 changer transitions 0/620 dead transitions. [2024-11-19 13:58:07,746 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 352 places, 620 transitions, 13295 flow [2024-11-19 13:58:07,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-19 13:58:07,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2024-11-19 13:58:07,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 241 transitions. [2024-11-19 13:58:07,747 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5149572649572649 [2024-11-19 13:58:07,747 INFO L175 Difference]: Start difference. First operand has 341 places, 494 transitions, 9817 flow. Second operand 12 states and 241 transitions. [2024-11-19 13:58:07,747 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 352 places, 620 transitions, 13295 flow [2024-11-19 13:58:08,090 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 347 places, 620 transitions, 13040 flow, removed 43 selfloop flow, removed 5 redundant places. [2024-11-19 13:58:08,099 INFO L231 Difference]: Finished difference. Result has 355 places, 533 transitions, 10802 flow [2024-11-19 13:58:08,100 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=39, PETRI_DIFFERENCE_MINUEND_FLOW=9581, PETRI_DIFFERENCE_MINUEND_PLACES=336, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=494, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=48, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=422, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=10802, PETRI_PLACES=355, PETRI_TRANSITIONS=533} [2024-11-19 13:58:08,100 INFO L277 CegarLoopForPetriNet]: 39 programPoint places, 316 predicate places. [2024-11-19 13:58:08,100 INFO L471 AbstractCegarLoop]: Abstraction has has 355 places, 533 transitions, 10802 flow [2024-11-19 13:58:08,100 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 13.6) internal successors, (136), 10 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 13:58:08,101 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 13:58:08,101 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 13:58:08,101 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2024-11-19 13:58:08,101 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 12 more)] === [2024-11-19 13:58:08,101 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 13:58:08,101 INFO L85 PathProgramCache]: Analyzing trace with hash 771623585, now seen corresponding path program 2 times [2024-11-19 13:58:08,101 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 13:58:08,101 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [483421055] [2024-11-19 13:58:08,102 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 13:58:08,102 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 13:58:08,111 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-19 13:58:08,112 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 13:58:08,346 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-19 13:58:08,346 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 13:58:08,347 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [483421055] [2024-11-19 13:58:08,347 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [483421055] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 13:58:08,347 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 13:58:08,347 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-19 13:58:08,347 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1043773097] [2024-11-19 13:58:08,347 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 13:58:08,347 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-19 13:58:08,347 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 13:58:08,348 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-19 13:58:08,348 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-11-19 13:58:08,367 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 39 [2024-11-19 13:58:08,368 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 355 places, 533 transitions, 10802 flow. Second operand has 10 states, 10 states have (on average 13.6) internal successors, (136), 10 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 13:58:08,368 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 13:58:08,368 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 39 [2024-11-19 13:58:08,368 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 13:58:09,811 INFO L124 PetriNetUnfolderBase]: 1636/3780 cut-off events. [2024-11-19 13:58:09,811 INFO L125 PetriNetUnfolderBase]: For 127566/127655 co-relation queries the response was YES. [2024-11-19 13:58:09,857 INFO L83 FinitePrefix]: Finished finitePrefix Result has 34792 conditions, 3780 events. 1636/3780 cut-off events. For 127566/127655 co-relation queries the response was YES. Maximal size of possible extension queue 182. Compared 28071 event pairs, 407 based on Foata normal form. 32/3805 useless extension candidates. Maximal degree in co-relation 34660. Up to 2592 conditions per place. [2024-11-19 13:58:09,881 INFO L140 encePairwiseOnDemand]: 27/39 looper letters, 554 selfloop transitions, 84 changer transitions 0/654 dead transitions. [2024-11-19 13:58:09,881 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 367 places, 654 transitions, 14253 flow [2024-11-19 13:58:09,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-19 13:58:09,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2024-11-19 13:58:09,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 256 transitions. [2024-11-19 13:58:09,882 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.504930966469428 [2024-11-19 13:58:09,883 INFO L175 Difference]: Start difference. First operand has 355 places, 533 transitions, 10802 flow. Second operand 13 states and 256 transitions. [2024-11-19 13:58:09,883 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 367 places, 654 transitions, 14253 flow [2024-11-19 13:58:10,383 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 364 places, 654 transitions, 14096 flow, removed 44 selfloop flow, removed 3 redundant places. [2024-11-19 13:58:10,394 INFO L231 Difference]: Finished difference. Result has 371 places, 562 transitions, 11654 flow [2024-11-19 13:58:10,395 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=39, PETRI_DIFFERENCE_MINUEND_FLOW=10657, PETRI_DIFFERENCE_MINUEND_PLACES=352, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=533, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=58, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=455, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=11654, PETRI_PLACES=371, PETRI_TRANSITIONS=562} [2024-11-19 13:58:10,395 INFO L277 CegarLoopForPetriNet]: 39 programPoint places, 332 predicate places. [2024-11-19 13:58:10,395 INFO L471 AbstractCegarLoop]: Abstraction has has 371 places, 562 transitions, 11654 flow [2024-11-19 13:58:10,396 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 13.6) internal successors, (136), 10 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 13:58:10,396 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 13:58:10,396 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 13:58:10,396 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2024-11-19 13:58:10,396 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 12 more)] === [2024-11-19 13:58:10,396 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 13:58:10,397 INFO L85 PathProgramCache]: Analyzing trace with hash 1719100369, now seen corresponding path program 3 times [2024-11-19 13:58:10,397 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 13:58:10,397 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [527109665] [2024-11-19 13:58:10,397 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-19 13:58:10,397 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 13:58:10,408 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2024-11-19 13:58:10,409 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 13:58:10,644 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-19 13:58:10,644 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 13:58:10,644 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [527109665] [2024-11-19 13:58:10,644 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [527109665] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 13:58:10,645 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 13:58:10,645 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-19 13:58:10,645 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1115929809] [2024-11-19 13:58:10,645 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 13:58:10,645 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-19 13:58:10,645 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 13:58:10,646 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-19 13:58:10,646 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2024-11-19 13:58:10,676 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 39 [2024-11-19 13:58:10,677 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 371 places, 562 transitions, 11654 flow. Second operand has 10 states, 10 states have (on average 13.6) internal successors, (136), 10 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 13:58:10,677 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 13:58:10,677 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 39 [2024-11-19 13:58:10,677 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 13:58:12,137 INFO L124 PetriNetUnfolderBase]: 1774/4092 cut-off events. [2024-11-19 13:58:12,138 INFO L125 PetriNetUnfolderBase]: For 154594/154661 co-relation queries the response was YES. [2024-11-19 13:58:12,185 INFO L83 FinitePrefix]: Finished finitePrefix Result has 38641 conditions, 4092 events. 1774/4092 cut-off events. For 154594/154661 co-relation queries the response was YES. Maximal size of possible extension queue 204. Compared 30989 event pairs, 481 based on Foata normal form. 32/4119 useless extension candidates. Maximal degree in co-relation 38502. Up to 2809 conditions per place. [2024-11-19 13:58:12,206 INFO L140 encePairwiseOnDemand]: 27/39 looper letters, 579 selfloop transitions, 88 changer transitions 0/683 dead transitions. [2024-11-19 13:58:12,206 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 385 places, 683 transitions, 15249 flow [2024-11-19 13:58:12,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-19 13:58:12,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-11-19 13:58:12,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 283 transitions. [2024-11-19 13:58:12,207 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.48376068376068376 [2024-11-19 13:58:12,207 INFO L175 Difference]: Start difference. First operand has 371 places, 562 transitions, 11654 flow. Second operand 15 states and 283 transitions. [2024-11-19 13:58:12,207 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 385 places, 683 transitions, 15249 flow [2024-11-19 13:58:12,864 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 381 places, 683 transitions, 15079 flow, removed 53 selfloop flow, removed 4 redundant places. [2024-11-19 13:58:12,878 INFO L231 Difference]: Finished difference. Result has 388 places, 591 transitions, 12567 flow [2024-11-19 13:58:12,879 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=39, PETRI_DIFFERENCE_MINUEND_FLOW=11498, PETRI_DIFFERENCE_MINUEND_PLACES=367, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=562, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=62, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=478, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=12567, PETRI_PLACES=388, PETRI_TRANSITIONS=591} [2024-11-19 13:58:12,879 INFO L277 CegarLoopForPetriNet]: 39 programPoint places, 349 predicate places. [2024-11-19 13:58:12,879 INFO L471 AbstractCegarLoop]: Abstraction has has 388 places, 591 transitions, 12567 flow [2024-11-19 13:58:12,879 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 13.6) internal successors, (136), 10 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 13:58:12,879 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 13:58:12,880 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 13:58:12,880 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2024-11-19 13:58:12,880 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 12 more)] === [2024-11-19 13:58:12,880 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 13:58:12,880 INFO L85 PathProgramCache]: Analyzing trace with hash 983869544, now seen corresponding path program 1 times [2024-11-19 13:58:12,880 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 13:58:12,880 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1673902861] [2024-11-19 13:58:12,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 13:58:12,881 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 13:58:12,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 13:58:13,190 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-19 13:58:13,191 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 13:58:13,191 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1673902861] [2024-11-19 13:58:13,191 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1673902861] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 13:58:13,191 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 13:58:13,191 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-19 13:58:13,191 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1061702551] [2024-11-19 13:58:13,191 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 13:58:13,192 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-19 13:58:13,192 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 13:58:13,192 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-19 13:58:13,192 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2024-11-19 13:58:13,204 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 39 [2024-11-19 13:58:13,204 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 388 places, 591 transitions, 12567 flow. Second operand has 11 states, 11 states have (on average 12.454545454545455) internal successors, (137), 11 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 13:58:13,204 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 13:58:13,204 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 39 [2024-11-19 13:58:13,204 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 13:58:14,729 INFO L124 PetriNetUnfolderBase]: 2012/4482 cut-off events. [2024-11-19 13:58:14,730 INFO L125 PetriNetUnfolderBase]: For 184341/184393 co-relation queries the response was YES. [2024-11-19 13:58:14,782 INFO L83 FinitePrefix]: Finished finitePrefix Result has 43714 conditions, 4482 events. 2012/4482 cut-off events. For 184341/184393 co-relation queries the response was YES. Maximal size of possible extension queue 216. Compared 33783 event pairs, 538 based on Foata normal form. 47/4528 useless extension candidates. Maximal degree in co-relation 43568. Up to 2982 conditions per place. [2024-11-19 13:58:14,804 INFO L140 encePairwiseOnDemand]: 27/39 looper letters, 556 selfloop transitions, 124 changer transitions 0/692 dead transitions. [2024-11-19 13:58:14,804 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 403 places, 692 transitions, 16180 flow [2024-11-19 13:58:14,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-19 13:58:14,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2024-11-19 13:58:14,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 287 transitions. [2024-11-19 13:58:14,805 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4599358974358974 [2024-11-19 13:58:14,805 INFO L175 Difference]: Start difference. First operand has 388 places, 591 transitions, 12567 flow. Second operand 16 states and 287 transitions. [2024-11-19 13:58:14,805 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 403 places, 692 transitions, 16180 flow [2024-11-19 13:58:15,467 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 398 places, 692 transitions, 15985 flow, removed 64 selfloop flow, removed 5 redundant places. [2024-11-19 13:58:15,478 INFO L231 Difference]: Finished difference. Result has 403 places, 601 transitions, 13007 flow [2024-11-19 13:58:15,479 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=39, PETRI_DIFFERENCE_MINUEND_FLOW=12390, PETRI_DIFFERENCE_MINUEND_PLACES=383, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=591, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=115, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=473, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=13007, PETRI_PLACES=403, PETRI_TRANSITIONS=601} [2024-11-19 13:58:15,479 INFO L277 CegarLoopForPetriNet]: 39 programPoint places, 364 predicate places. [2024-11-19 13:58:15,479 INFO L471 AbstractCegarLoop]: Abstraction has has 403 places, 601 transitions, 13007 flow [2024-11-19 13:58:15,479 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 12.454545454545455) internal successors, (137), 11 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 13:58:15,479 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 13:58:15,479 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 13:58:15,479 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2024-11-19 13:58:15,480 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 12 more)] === [2024-11-19 13:58:15,480 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 13:58:15,480 INFO L85 PathProgramCache]: Analyzing trace with hash 1195798075, now seen corresponding path program 4 times [2024-11-19 13:58:15,480 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 13:58:15,480 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [474389592] [2024-11-19 13:58:15,480 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-19 13:58:15,480 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 13:58:15,492 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-19 13:58:15,492 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 13:58:15,748 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-19 13:58:15,749 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 13:58:15,749 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [474389592] [2024-11-19 13:58:15,749 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [474389592] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 13:58:15,749 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 13:58:15,749 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-19 13:58:15,749 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1189988649] [2024-11-19 13:58:15,749 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 13:58:15,749 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-19 13:58:15,749 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 13:58:15,750 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-19 13:58:15,750 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2024-11-19 13:58:15,765 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 39 [2024-11-19 13:58:15,765 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 403 places, 601 transitions, 13007 flow. Second operand has 10 states, 10 states have (on average 13.6) internal successors, (136), 10 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 13:58:15,765 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 13:58:15,765 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 39 [2024-11-19 13:58:15,765 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 13:58:17,685 INFO L124 PetriNetUnfolderBase]: 2053/4691 cut-off events. [2024-11-19 13:58:17,686 INFO L125 PetriNetUnfolderBase]: For 209196/209272 co-relation queries the response was YES. [2024-11-19 13:58:17,735 INFO L83 FinitePrefix]: Finished finitePrefix Result has 47518 conditions, 4691 events. 2053/4691 cut-off events. For 209196/209272 co-relation queries the response was YES. Maximal size of possible extension queue 245. Compared 36533 event pairs, 368 based on Foata normal form. 30/4710 useless extension candidates. Maximal degree in co-relation 47367. Up to 2300 conditions per place. [2024-11-19 13:58:17,759 INFO L140 encePairwiseOnDemand]: 26/39 looper letters, 539 selfloop transitions, 307 changer transitions 0/863 dead transitions. [2024-11-19 13:58:17,759 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 426 places, 863 transitions, 20057 flow [2024-11-19 13:58:17,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-11-19 13:58:17,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2024-11-19 13:58:17,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 448 transitions. [2024-11-19 13:58:17,760 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.47863247863247865 [2024-11-19 13:58:17,760 INFO L175 Difference]: Start difference. First operand has 403 places, 601 transitions, 13007 flow. Second operand 24 states and 448 transitions. [2024-11-19 13:58:17,760 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 426 places, 863 transitions, 20057 flow [2024-11-19 13:58:18,482 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 412 places, 863 transitions, 19775 flow, removed 42 selfloop flow, removed 14 redundant places. [2024-11-19 13:58:18,495 INFO L231 Difference]: Finished difference. Result has 420 places, 700 transitions, 16587 flow [2024-11-19 13:58:18,496 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=39, PETRI_DIFFERENCE_MINUEND_FLOW=12757, PETRI_DIFFERENCE_MINUEND_PLACES=389, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=601, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=217, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=334, PETRI_DIFFERENCE_SUBTRAHEND_STATES=24, PETRI_FLOW=16587, PETRI_PLACES=420, PETRI_TRANSITIONS=700} [2024-11-19 13:58:18,496 INFO L277 CegarLoopForPetriNet]: 39 programPoint places, 381 predicate places. [2024-11-19 13:58:18,496 INFO L471 AbstractCegarLoop]: Abstraction has has 420 places, 700 transitions, 16587 flow [2024-11-19 13:58:18,496 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 13.6) internal successors, (136), 10 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 13:58:18,496 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 13:58:18,496 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 13:58:18,497 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2024-11-19 13:58:18,497 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 12 more)] === [2024-11-19 13:58:18,497 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 13:58:18,497 INFO L85 PathProgramCache]: Analyzing trace with hash 1627034697, now seen corresponding path program 5 times [2024-11-19 13:58:18,497 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 13:58:18,497 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [299009710] [2024-11-19 13:58:18,497 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-19 13:58:18,497 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 13:58:18,514 INFO L227 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) [2024-11-19 13:58:18,514 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 13:58:18,730 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-19 13:58:18,730 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 13:58:18,730 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [299009710] [2024-11-19 13:58:18,730 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [299009710] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 13:58:18,730 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 13:58:18,731 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-19 13:58:18,731 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1523430490] [2024-11-19 13:58:18,731 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 13:58:18,732 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-19 13:58:18,732 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 13:58:18,732 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-19 13:58:18,733 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-11-19 13:58:18,746 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 39 [2024-11-19 13:58:18,747 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 420 places, 700 transitions, 16587 flow. Second operand has 10 states, 10 states have (on average 11.7) internal successors, (117), 10 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 13:58:18,747 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 13:58:18,747 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 39 [2024-11-19 13:58:18,747 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 13:58:20,974 INFO L124 PetriNetUnfolderBase]: 2648/5657 cut-off events. [2024-11-19 13:58:20,975 INFO L125 PetriNetUnfolderBase]: For 264697/264726 co-relation queries the response was YES. [2024-11-19 13:58:21,050 INFO L83 FinitePrefix]: Finished finitePrefix Result has 57905 conditions, 5657 events. 2648/5657 cut-off events. For 264697/264726 co-relation queries the response was YES. Maximal size of possible extension queue 242. Compared 42604 event pairs, 380 based on Foata normal form. 35/5692 useless extension candidates. Maximal degree in co-relation 57751. Up to 2480 conditions per place. [2024-11-19 13:58:21,082 INFO L140 encePairwiseOnDemand]: 27/39 looper letters, 551 selfloop transitions, 288 changer transitions 0/846 dead transitions. [2024-11-19 13:58:21,082 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 434 places, 846 transitions, 20791 flow [2024-11-19 13:58:21,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-19 13:58:21,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-11-19 13:58:21,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 274 transitions. [2024-11-19 13:58:21,084 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4683760683760684 [2024-11-19 13:58:21,084 INFO L175 Difference]: Start difference. First operand has 420 places, 700 transitions, 16587 flow. Second operand 15 states and 274 transitions. [2024-11-19 13:58:21,084 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 434 places, 846 transitions, 20791 flow [2024-11-19 13:58:22,650 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 426 places, 846 transitions, 20328 flow, removed 187 selfloop flow, removed 8 redundant places. [2024-11-19 13:58:22,664 INFO L231 Difference]: Finished difference. Result has 434 places, 719 transitions, 17683 flow [2024-11-19 13:58:22,665 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=39, PETRI_DIFFERENCE_MINUEND_FLOW=16174, PETRI_DIFFERENCE_MINUEND_PLACES=412, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=700, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=270, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=421, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=17683, PETRI_PLACES=434, PETRI_TRANSITIONS=719} [2024-11-19 13:58:22,665 INFO L277 CegarLoopForPetriNet]: 39 programPoint places, 395 predicate places. [2024-11-19 13:58:22,665 INFO L471 AbstractCegarLoop]: Abstraction has has 434 places, 719 transitions, 17683 flow [2024-11-19 13:58:22,665 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 11.7) internal successors, (117), 10 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 13:58:22,665 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 13:58:22,666 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 13:58:22,666 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2024-11-19 13:58:22,666 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 12 more)] === [2024-11-19 13:58:22,666 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 13:58:22,666 INFO L85 PathProgramCache]: Analyzing trace with hash 340491421, now seen corresponding path program 6 times [2024-11-19 13:58:22,666 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 13:58:22,666 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [674988666] [2024-11-19 13:58:22,667 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-19 13:58:22,667 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 13:58:22,676 INFO L227 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2024-11-19 13:58:22,677 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 13:58:22,841 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-19 13:58:22,841 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 13:58:22,841 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [674988666] [2024-11-19 13:58:22,841 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [674988666] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 13:58:22,841 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 13:58:22,842 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-19 13:58:22,842 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1924933567] [2024-11-19 13:58:22,842 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 13:58:22,842 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-19 13:58:22,842 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 13:58:22,842 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-19 13:58:22,842 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2024-11-19 13:58:22,863 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 39 [2024-11-19 13:58:22,863 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 434 places, 719 transitions, 17683 flow. Second operand has 10 states, 10 states have (on average 12.7) internal successors, (127), 10 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 13:58:22,864 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 13:58:22,864 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 39 [2024-11-19 13:58:22,864 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 13:58:25,342 INFO L124 PetriNetUnfolderBase]: 2574/5656 cut-off events. [2024-11-19 13:58:25,343 INFO L125 PetriNetUnfolderBase]: For 275870/276254 co-relation queries the response was YES. [2024-11-19 13:58:25,406 INFO L83 FinitePrefix]: Finished finitePrefix Result has 59159 conditions, 5656 events. 2574/5656 cut-off events. For 275870/276254 co-relation queries the response was YES. Maximal size of possible extension queue 260. Compared 43513 event pairs, 306 based on Foata normal form. 28/5668 useless extension candidates. Maximal degree in co-relation 58997. Up to 1511 conditions per place. [2024-11-19 13:58:25,434 INFO L140 encePairwiseOnDemand]: 26/39 looper letters, 489 selfloop transitions, 455 changer transitions 0/952 dead transitions. [2024-11-19 13:58:25,434 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 458 places, 952 transitions, 23828 flow [2024-11-19 13:58:25,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-11-19 13:58:25,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2024-11-19 13:58:25,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 450 transitions. [2024-11-19 13:58:25,436 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.46153846153846156 [2024-11-19 13:58:25,436 INFO L175 Difference]: Start difference. First operand has 434 places, 719 transitions, 17683 flow. Second operand 25 states and 450 transitions. [2024-11-19 13:58:25,436 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 458 places, 952 transitions, 23828 flow [2024-11-19 13:58:26,709 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 451 places, 952 transitions, 23642 flow, removed 38 selfloop flow, removed 7 redundant places. [2024-11-19 13:58:26,724 INFO L231 Difference]: Finished difference. Result has 460 places, 767 transitions, 20374 flow [2024-11-19 13:58:26,725 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=39, PETRI_DIFFERENCE_MINUEND_FLOW=17501, PETRI_DIFFERENCE_MINUEND_PLACES=427, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=719, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=410, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=293, PETRI_DIFFERENCE_SUBTRAHEND_STATES=25, PETRI_FLOW=20374, PETRI_PLACES=460, PETRI_TRANSITIONS=767} [2024-11-19 13:58:26,726 INFO L277 CegarLoopForPetriNet]: 39 programPoint places, 421 predicate places. [2024-11-19 13:58:26,726 INFO L471 AbstractCegarLoop]: Abstraction has has 460 places, 767 transitions, 20374 flow [2024-11-19 13:58:26,726 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 12.7) internal successors, (127), 10 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 13:58:26,726 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 13:58:26,726 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 13:58:26,726 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2024-11-19 13:58:26,726 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 12 more)] === [2024-11-19 13:58:26,727 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 13:58:26,727 INFO L85 PathProgramCache]: Analyzing trace with hash -1437579194, now seen corresponding path program 2 times [2024-11-19 13:58:26,727 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 13:58:26,727 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2036520587] [2024-11-19 13:58:26,727 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 13:58:26,727 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 13:58:26,737 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-19 13:58:26,737 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 13:58:26,903 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-19 13:58:26,903 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 13:58:26,903 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2036520587] [2024-11-19 13:58:26,903 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2036520587] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 13:58:26,904 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 13:58:26,904 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-19 13:58:26,904 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1977685802] [2024-11-19 13:58:26,904 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 13:58:26,904 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-19 13:58:26,904 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 13:58:26,904 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-19 13:58:26,905 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2024-11-19 13:58:26,920 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 39 [2024-11-19 13:58:26,920 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 460 places, 767 transitions, 20374 flow. Second operand has 11 states, 11 states have (on average 12.454545454545455) internal successors, (137), 11 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 13:58:26,920 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 13:58:26,920 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 39 [2024-11-19 13:58:26,920 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 13:58:29,299 INFO L124 PetriNetUnfolderBase]: 2549/5646 cut-off events. [2024-11-19 13:58:29,299 INFO L125 PetriNetUnfolderBase]: For 341781/341855 co-relation queries the response was YES. [2024-11-19 13:58:29,375 INFO L83 FinitePrefix]: Finished finitePrefix Result has 65057 conditions, 5646 events. 2549/5646 cut-off events. For 341781/341855 co-relation queries the response was YES. Maximal size of possible extension queue 285. Compared 44721 event pairs, 656 based on Foata normal form. 57/5701 useless extension candidates. Maximal degree in co-relation 64887. Up to 3818 conditions per place. [2024-11-19 13:58:29,407 INFO L140 encePairwiseOnDemand]: 27/39 looper letters, 740 selfloop transitions, 169 changer transitions 0/929 dead transitions. [2024-11-19 13:58:29,408 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 476 places, 929 transitions, 26980 flow [2024-11-19 13:58:29,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-19 13:58:29,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2024-11-19 13:58:29,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 303 transitions. [2024-11-19 13:58:29,409 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.45701357466063347 [2024-11-19 13:58:29,409 INFO L175 Difference]: Start difference. First operand has 460 places, 767 transitions, 20374 flow. Second operand 17 states and 303 transitions. [2024-11-19 13:58:29,409 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 476 places, 929 transitions, 26980 flow [2024-11-19 13:58:30,994 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 466 places, 929 transitions, 26655 flow, removed 89 selfloop flow, removed 10 redundant places. [2024-11-19 13:58:31,010 INFO L231 Difference]: Finished difference. Result has 474 places, 802 transitions, 21750 flow [2024-11-19 13:58:31,010 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=39, PETRI_DIFFERENCE_MINUEND_FLOW=20101, PETRI_DIFFERENCE_MINUEND_PLACES=450, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=767, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=135, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=622, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=21750, PETRI_PLACES=474, PETRI_TRANSITIONS=802} [2024-11-19 13:58:31,011 INFO L277 CegarLoopForPetriNet]: 39 programPoint places, 435 predicate places. [2024-11-19 13:58:31,011 INFO L471 AbstractCegarLoop]: Abstraction has has 474 places, 802 transitions, 21750 flow [2024-11-19 13:58:31,011 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 12.454545454545455) internal successors, (137), 11 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 13:58:31,011 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 13:58:31,011 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 13:58:31,011 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2024-11-19 13:58:31,011 INFO L396 AbstractCegarLoop]: === Iteration 40 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 12 more)] === [2024-11-19 13:58:31,012 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 13:58:31,012 INFO L85 PathProgramCache]: Analyzing trace with hash -584617101, now seen corresponding path program 7 times [2024-11-19 13:58:31,012 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 13:58:31,012 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [532140121] [2024-11-19 13:58:31,012 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-19 13:58:31,012 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 13:58:31,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 13:58:31,271 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-19 13:58:31,271 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 13:58:31,271 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [532140121] [2024-11-19 13:58:31,271 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [532140121] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 13:58:31,272 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 13:58:31,272 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-19 13:58:31,272 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2046159569] [2024-11-19 13:58:31,272 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 13:58:31,272 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-19 13:58:31,272 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 13:58:31,273 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-19 13:58:31,273 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-11-19 13:58:31,302 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 39 [2024-11-19 13:58:31,302 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 474 places, 802 transitions, 21750 flow. Second operand has 10 states, 10 states have (on average 13.6) internal successors, (136), 10 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 13:58:31,302 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 13:58:31,302 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 39 [2024-11-19 13:58:31,303 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 13:58:33,632 INFO L124 PetriNetUnfolderBase]: 2496/5724 cut-off events. [2024-11-19 13:58:33,633 INFO L125 PetriNetUnfolderBase]: For 374805/374893 co-relation queries the response was YES. [2024-11-19 13:58:33,709 INFO L83 FinitePrefix]: Finished finitePrefix Result has 68075 conditions, 5724 events. 2496/5724 cut-off events. For 374805/374893 co-relation queries the response was YES. Maximal size of possible extension queue 304. Compared 46521 event pairs, 579 based on Foata normal form. 50/5764 useless extension candidates. Maximal degree in co-relation 67897. Up to 3864 conditions per place. [2024-11-19 13:58:33,741 INFO L140 encePairwiseOnDemand]: 27/39 looper letters, 746 selfloop transitions, 192 changer transitions 0/970 dead transitions. [2024-11-19 13:58:33,741 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 490 places, 970 transitions, 27608 flow [2024-11-19 13:58:33,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-19 13:58:33,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2024-11-19 13:58:33,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 321 transitions. [2024-11-19 13:58:33,742 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4841628959276018 [2024-11-19 13:58:33,742 INFO L175 Difference]: Start difference. First operand has 474 places, 802 transitions, 21750 flow. Second operand 17 states and 321 transitions. [2024-11-19 13:58:33,742 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 490 places, 970 transitions, 27608 flow [2024-11-19 13:58:35,632 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 490 places, 970 transitions, 27510 flow, removed 49 selfloop flow, removed 0 redundant places. [2024-11-19 13:58:35,650 INFO L231 Difference]: Finished difference. Result has 497 places, 857 transitions, 24438 flow [2024-11-19 13:58:35,651 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=39, PETRI_DIFFERENCE_MINUEND_FLOW=21662, PETRI_DIFFERENCE_MINUEND_PLACES=474, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=802, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=141, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=616, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=24438, PETRI_PLACES=497, PETRI_TRANSITIONS=857} [2024-11-19 13:58:35,652 INFO L277 CegarLoopForPetriNet]: 39 programPoint places, 458 predicate places. [2024-11-19 13:58:35,652 INFO L471 AbstractCegarLoop]: Abstraction has has 497 places, 857 transitions, 24438 flow [2024-11-19 13:58:35,652 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 13.6) internal successors, (136), 10 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 13:58:35,652 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 13:58:35,652 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 13:58:35,652 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2024-11-19 13:58:35,653 INFO L396 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 12 more)] === [2024-11-19 13:58:35,653 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 13:58:35,653 INFO L85 PathProgramCache]: Analyzing trace with hash 691387512, now seen corresponding path program 3 times [2024-11-19 13:58:35,653 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 13:58:35,653 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1290251736] [2024-11-19 13:58:35,653 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-19 13:58:35,653 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 13:58:35,663 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2024-11-19 13:58:35,663 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 13:58:35,856 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-19 13:58:35,856 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 13:58:35,856 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1290251736] [2024-11-19 13:58:35,857 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1290251736] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 13:58:35,857 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 13:58:35,857 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-19 13:58:35,857 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [891710342] [2024-11-19 13:58:35,857 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 13:58:35,857 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-19 13:58:35,857 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 13:58:35,858 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-19 13:58:35,858 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2024-11-19 13:58:35,872 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 39 [2024-11-19 13:58:35,872 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 497 places, 857 transitions, 24438 flow. Second operand has 11 states, 11 states have (on average 12.454545454545455) internal successors, (137), 11 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 13:58:35,872 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 13:58:35,872 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 39 [2024-11-19 13:58:35,873 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 13:58:38,741 INFO L124 PetriNetUnfolderBase]: 2820/6206 cut-off events. [2024-11-19 13:58:38,742 INFO L125 PetriNetUnfolderBase]: For 431586/431700 co-relation queries the response was YES. [2024-11-19 13:58:38,842 INFO L83 FinitePrefix]: Finished finitePrefix Result has 76302 conditions, 6206 events. 2820/6206 cut-off events. For 431586/431700 co-relation queries the response was YES. Maximal size of possible extension queue 307. Compared 49986 event pairs, 712 based on Foata normal form. 53/6247 useless extension candidates. Maximal degree in co-relation 76117. Up to 4249 conditions per place. [2024-11-19 13:58:38,883 INFO L140 encePairwiseOnDemand]: 27/39 looper letters, 819 selfloop transitions, 181 changer transitions 0/1020 dead transitions. [2024-11-19 13:58:38,884 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 513 places, 1020 transitions, 31568 flow [2024-11-19 13:58:38,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-19 13:58:38,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2024-11-19 13:58:38,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 301 transitions. [2024-11-19 13:58:38,884 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4539969834087481 [2024-11-19 13:58:38,885 INFO L175 Difference]: Start difference. First operand has 497 places, 857 transitions, 24438 flow. Second operand 17 states and 301 transitions. [2024-11-19 13:58:38,885 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 513 places, 1020 transitions, 31568 flow [2024-11-19 13:58:41,035 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 504 places, 1020 transitions, 31251 flow, removed 86 selfloop flow, removed 9 redundant places. [2024-11-19 13:58:41,054 INFO L231 Difference]: Finished difference. Result has 511 places, 883 transitions, 25630 flow [2024-11-19 13:58:41,055 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=39, PETRI_DIFFERENCE_MINUEND_FLOW=24161, PETRI_DIFFERENCE_MINUEND_PLACES=488, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=857, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=156, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=691, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=25630, PETRI_PLACES=511, PETRI_TRANSITIONS=883} [2024-11-19 13:58:41,056 INFO L277 CegarLoopForPetriNet]: 39 programPoint places, 472 predicate places. [2024-11-19 13:58:41,056 INFO L471 AbstractCegarLoop]: Abstraction has has 511 places, 883 transitions, 25630 flow [2024-11-19 13:58:41,056 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 12.454545454545455) internal successors, (137), 11 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 13:58:41,056 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 13:58:41,056 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 13:58:41,057 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2024-11-19 13:58:41,057 INFO L396 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 12 more)] === [2024-11-19 13:58:41,057 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 13:58:41,057 INFO L85 PathProgramCache]: Analyzing trace with hash -1397391354, now seen corresponding path program 4 times [2024-11-19 13:58:41,057 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 13:58:41,057 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1798154646] [2024-11-19 13:58:41,057 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-19 13:58:41,058 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 13:58:41,070 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-19 13:58:41,070 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 13:58:41,325 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-19 13:58:41,325 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 13:58:41,325 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1798154646] [2024-11-19 13:58:41,325 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1798154646] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 13:58:41,325 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 13:58:41,325 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-19 13:58:41,325 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1144671244] [2024-11-19 13:58:41,326 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 13:58:41,326 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-19 13:58:41,326 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 13:58:41,326 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-19 13:58:41,326 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2024-11-19 13:58:41,345 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 39 [2024-11-19 13:58:41,346 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 511 places, 883 transitions, 25630 flow. Second operand has 11 states, 11 states have (on average 12.454545454545455) internal successors, (137), 11 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 13:58:41,346 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 13:58:41,346 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 39 [2024-11-19 13:58:41,346 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 13:58:44,646 INFO L124 PetriNetUnfolderBase]: 2932/6517 cut-off events. [2024-11-19 13:58:44,646 INFO L125 PetriNetUnfolderBase]: For 466100/466184 co-relation queries the response was YES. [2024-11-19 13:58:44,755 INFO L83 FinitePrefix]: Finished finitePrefix Result has 81899 conditions, 6517 events. 2932/6517 cut-off events. For 466100/466184 co-relation queries the response was YES. Maximal size of possible extension queue 323. Compared 53313 event pairs, 724 based on Foata normal form. 55/6565 useless extension candidates. Maximal degree in co-relation 81707. Up to 4311 conditions per place. [2024-11-19 13:58:44,800 INFO L140 encePairwiseOnDemand]: 27/39 looper letters, 814 selfloop transitions, 237 changer transitions 0/1071 dead transitions. [2024-11-19 13:58:44,800 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 529 places, 1071 transitions, 33473 flow [2024-11-19 13:58:44,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-19 13:58:44,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2024-11-19 13:58:44,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 331 transitions. [2024-11-19 13:58:44,805 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.446693657219973 [2024-11-19 13:58:44,805 INFO L175 Difference]: Start difference. First operand has 511 places, 883 transitions, 25630 flow. Second operand 19 states and 331 transitions. [2024-11-19 13:58:44,805 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 529 places, 1071 transitions, 33473 flow [2024-11-19 13:58:47,730 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 527 places, 1071 transitions, 33337 flow, removed 45 selfloop flow, removed 2 redundant places. [2024-11-19 13:58:47,753 INFO L231 Difference]: Finished difference. Result has 536 places, 917 transitions, 27479 flow [2024-11-19 13:58:47,754 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=39, PETRI_DIFFERENCE_MINUEND_FLOW=25498, PETRI_DIFFERENCE_MINUEND_PLACES=509, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=883, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=203, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=662, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=27479, PETRI_PLACES=536, PETRI_TRANSITIONS=917} [2024-11-19 13:58:47,754 INFO L277 CegarLoopForPetriNet]: 39 programPoint places, 497 predicate places. [2024-11-19 13:58:47,754 INFO L471 AbstractCegarLoop]: Abstraction has has 536 places, 917 transitions, 27479 flow [2024-11-19 13:58:47,754 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 12.454545454545455) internal successors, (137), 11 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 13:58:47,754 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 13:58:47,755 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 13:58:47,755 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2024-11-19 13:58:47,755 INFO L396 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 12 more)] === [2024-11-19 13:58:47,755 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 13:58:47,755 INFO L85 PathProgramCache]: Analyzing trace with hash -1803600520, now seen corresponding path program 5 times [2024-11-19 13:58:47,755 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 13:58:47,755 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2103172712] [2024-11-19 13:58:47,755 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-19 13:58:47,756 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 13:58:47,788 INFO L227 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) [2024-11-19 13:58:47,788 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 13:58:48,292 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-19 13:58:48,292 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 13:58:48,293 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2103172712] [2024-11-19 13:58:48,293 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2103172712] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 13:58:48,293 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 13:58:48,293 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-19 13:58:48,293 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1857543826] [2024-11-19 13:58:48,293 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 13:58:48,293 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-19 13:58:48,293 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 13:58:48,294 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-19 13:58:48,294 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2024-11-19 13:58:48,306 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 39 [2024-11-19 13:58:48,306 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 536 places, 917 transitions, 27479 flow. Second operand has 11 states, 11 states have (on average 12.454545454545455) internal successors, (137), 11 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 13:58:48,307 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 13:58:48,307 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 39 [2024-11-19 13:58:48,307 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 13:58:51,781 INFO L124 PetriNetUnfolderBase]: 3030/6704 cut-off events. [2024-11-19 13:58:51,781 INFO L125 PetriNetUnfolderBase]: For 516607/516713 co-relation queries the response was YES. [2024-11-19 13:58:51,878 INFO L83 FinitePrefix]: Finished finitePrefix Result has 88051 conditions, 6704 events. 3030/6704 cut-off events. For 516607/516713 co-relation queries the response was YES. Maximal size of possible extension queue 336. Compared 55136 event pairs, 712 based on Foata normal form. 63/6754 useless extension candidates. Maximal degree in co-relation 87851. Up to 4375 conditions per place. [2024-11-19 13:58:51,916 INFO L140 encePairwiseOnDemand]: 27/39 looper letters, 861 selfloop transitions, 231 changer transitions 0/1112 dead transitions. [2024-11-19 13:58:51,917 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 555 places, 1112 transitions, 35863 flow [2024-11-19 13:58:51,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-19 13:58:51,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2024-11-19 13:58:51,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 366 transitions. [2024-11-19 13:58:51,918 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.46923076923076923 [2024-11-19 13:58:51,918 INFO L175 Difference]: Start difference. First operand has 536 places, 917 transitions, 27479 flow. Second operand 20 states and 366 transitions. [2024-11-19 13:58:51,918 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 555 places, 1112 transitions, 35863 flow [2024-11-19 13:58:54,501 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 549 places, 1112 transitions, 35670 flow, removed 56 selfloop flow, removed 6 redundant places. [2024-11-19 13:58:54,523 INFO L231 Difference]: Finished difference. Result has 558 places, 947 transitions, 29287 flow [2024-11-19 13:58:54,524 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=39, PETRI_DIFFERENCE_MINUEND_FLOW=27294, PETRI_DIFFERENCE_MINUEND_PLACES=530, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=917, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=203, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=709, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=29287, PETRI_PLACES=558, PETRI_TRANSITIONS=947} [2024-11-19 13:58:54,525 INFO L277 CegarLoopForPetriNet]: 39 programPoint places, 519 predicate places. [2024-11-19 13:58:54,529 INFO L471 AbstractCegarLoop]: Abstraction has has 558 places, 947 transitions, 29287 flow [2024-11-19 13:58:54,529 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 12.454545454545455) internal successors, (137), 11 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 13:58:54,529 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 13:58:54,529 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 13:58:54,529 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2024-11-19 13:58:54,530 INFO L396 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 12 more)] === [2024-11-19 13:58:54,530 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 13:58:54,530 INFO L85 PathProgramCache]: Analyzing trace with hash -903638108, now seen corresponding path program 6 times [2024-11-19 13:58:54,530 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 13:58:54,530 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [549886897] [2024-11-19 13:58:54,530 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-19 13:58:54,530 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 13:58:54,549 INFO L227 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2024-11-19 13:58:54,549 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 13:58:54,761 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-19 13:58:54,761 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 13:58:54,761 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [549886897] [2024-11-19 13:58:54,762 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [549886897] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 13:58:54,762 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 13:58:54,762 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-19 13:58:54,762 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1517561847] [2024-11-19 13:58:54,762 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 13:58:54,763 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-19 13:58:54,763 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 13:58:54,763 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-19 13:58:54,763 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2024-11-19 13:58:54,776 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 39 [2024-11-19 13:58:54,776 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 558 places, 947 transitions, 29287 flow. Second operand has 11 states, 11 states have (on average 12.454545454545455) internal successors, (137), 11 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 13:58:54,776 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 13:58:54,776 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 39 [2024-11-19 13:58:54,777 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 13:58:58,736 INFO L124 PetriNetUnfolderBase]: 3165/6989 cut-off events. [2024-11-19 13:58:58,737 INFO L125 PetriNetUnfolderBase]: For 580137/580259 co-relation queries the response was YES. [2024-11-19 13:58:58,831 INFO L83 FinitePrefix]: Finished finitePrefix Result has 95310 conditions, 6989 events. 3165/6989 cut-off events. For 580137/580259 co-relation queries the response was YES. Maximal size of possible extension queue 349. Compared 57658 event pairs, 723 based on Foata normal form. 75/7051 useless extension candidates. Maximal degree in co-relation 95102. Up to 4609 conditions per place. [2024-11-19 13:58:58,870 INFO L140 encePairwiseOnDemand]: 26/39 looper letters, 851 selfloop transitions, 249 changer transitions 0/1120 dead transitions. [2024-11-19 13:58:58,871 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 576 places, 1120 transitions, 37089 flow [2024-11-19 13:58:58,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-19 13:58:58,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2024-11-19 13:58:58,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 328 transitions. [2024-11-19 13:58:58,872 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4426450742240216 [2024-11-19 13:58:58,872 INFO L175 Difference]: Start difference. First operand has 558 places, 947 transitions, 29287 flow. Second operand 19 states and 328 transitions. [2024-11-19 13:58:58,872 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 576 places, 1120 transitions, 37089 flow [2024-11-19 13:59:01,929 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 569 places, 1120 transitions, 36832 flow, removed 95 selfloop flow, removed 7 redundant places. [2024-11-19 13:59:01,954 INFO L231 Difference]: Finished difference. Result has 577 places, 978 transitions, 31066 flow [2024-11-19 13:59:01,955 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=39, PETRI_DIFFERENCE_MINUEND_FLOW=29040, PETRI_DIFFERENCE_MINUEND_PLACES=551, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=947, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=219, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=710, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=31066, PETRI_PLACES=577, PETRI_TRANSITIONS=978} [2024-11-19 13:59:01,955 INFO L277 CegarLoopForPetriNet]: 39 programPoint places, 538 predicate places. [2024-11-19 13:59:01,955 INFO L471 AbstractCegarLoop]: Abstraction has has 577 places, 978 transitions, 31066 flow [2024-11-19 13:59:01,955 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 12.454545454545455) internal successors, (137), 11 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 13:59:01,955 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 13:59:01,956 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 13:59:01,956 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2024-11-19 13:59:01,956 INFO L396 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 12 more)] === [2024-11-19 13:59:01,956 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 13:59:01,956 INFO L85 PathProgramCache]: Analyzing trace with hash 41034502, now seen corresponding path program 7 times [2024-11-19 13:59:01,956 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 13:59:01,957 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [256363396] [2024-11-19 13:59:01,957 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-19 13:59:01,957 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 13:59:01,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 13:59:02,295 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-19 13:59:02,296 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 13:59:02,296 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [256363396] [2024-11-19 13:59:02,296 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [256363396] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 13:59:02,296 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 13:59:02,296 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-19 13:59:02,296 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2013221592] [2024-11-19 13:59:02,296 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 13:59:02,296 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-19 13:59:02,297 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 13:59:02,297 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-19 13:59:02,297 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2024-11-19 13:59:02,309 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 39 [2024-11-19 13:59:02,310 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 577 places, 978 transitions, 31066 flow. Second operand has 11 states, 11 states have (on average 12.454545454545455) internal successors, (137), 11 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 13:59:02,310 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 13:59:02,310 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 39 [2024-11-19 13:59:02,310 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand