./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 c00e63dc Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/goblint-regression/06-symbeq_02-funloop_norace.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash ebedbc62bd44b0c214a81c07c6f99e850a5d96675b77716f8547d1b39e8b2cf8 --- Real Ultimate output --- This is Ultimate 0.3.0-?-c00e63d-m [2025-02-06 18:42:56,955 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-06 18:42:56,996 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2025-02-06 18:42:56,999 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-06 18:42:56,999 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-06 18:42:57,014 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-06 18:42:57,015 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-06 18:42:57,015 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-06 18:42:57,015 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-06 18:42:57,015 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-06 18:42:57,015 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-06 18:42:57,015 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-06 18:42:57,016 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-06 18:42:57,016 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-06 18:42:57,016 INFO L153 SettingsManager]: * Use SBE=true [2025-02-06 18:42:57,016 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-06 18:42:57,016 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-06 18:42:57,016 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-06 18:42:57,016 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-06 18:42:57,016 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-06 18:42:57,016 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-06 18:42:57,016 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-06 18:42:57,017 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-06 18:42:57,017 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-06 18:42:57,017 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2025-02-06 18:42:57,017 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-06 18:42:57,017 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-06 18:42:57,017 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-06 18:42:57,017 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-06 18:42:57,017 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-06 18:42:57,017 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-06 18:42:57,017 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-06 18:42:57,017 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-06 18:42:57,018 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-06 18:42:57,018 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 18:42:57,018 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-06 18:42:57,018 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-06 18:42:57,018 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-06 18:42:57,018 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-06 18:42:57,018 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-06 18:42:57,018 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-06 18:42:57,018 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-06 18:42:57,018 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-06 18:42:57,018 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-06 18:42:57,018 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-06 18:42:57,018 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ebedbc62bd44b0c214a81c07c6f99e850a5d96675b77716f8547d1b39e8b2cf8 [2025-02-06 18:42:57,222 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-06 18:42:57,229 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-06 18:42:57,231 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-06 18:42:57,232 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-06 18:42:57,232 INFO L274 PluginConnector]: CDTParser initialized [2025-02-06 18:42:57,234 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/06-symbeq_02-funloop_norace.i [2025-02-06 18:42:58,323 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/f947e40de/0013981567884189ba02f0b0ddc1bca9/FLAG8481457b5 [2025-02-06 18:42:58,604 INFO L384 CDTParser]: Found 1 translation units. [2025-02-06 18:42:58,604 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/goblint-regression/06-symbeq_02-funloop_norace.i [2025-02-06 18:42:58,620 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/f947e40de/0013981567884189ba02f0b0ddc1bca9/FLAG8481457b5 [2025-02-06 18:42:58,889 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/f947e40de/0013981567884189ba02f0b0ddc1bca9 [2025-02-06 18:42:58,891 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-06 18:42:58,892 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-06 18:42:58,893 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-06 18:42:58,893 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-06 18:42:58,896 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-06 18:42:58,897 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 06:42:58" (1/1) ... [2025-02-06 18:42:58,897 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2583efae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:42:58, skipping insertion in model container [2025-02-06 18:42:58,897 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 06:42:58" (1/1) ... [2025-02-06 18:42:58,921 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-06 18:42:59,168 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 18:42:59,190 INFO L200 MainTranslator]: Completed pre-run [2025-02-06 18:42:59,227 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 18:42:59,270 INFO L204 MainTranslator]: Completed translation [2025-02-06 18:42:59,270 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:42:59 WrapperNode [2025-02-06 18:42:59,271 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-06 18:42:59,272 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-06 18:42:59,272 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-06 18:42:59,272 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-06 18:42:59,276 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:42:59" (1/1) ... [2025-02-06 18:42:59,286 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:42:59" (1/1) ... [2025-02-06 18:42:59,301 INFO L138 Inliner]: procedures = 263, calls = 70, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 133 [2025-02-06 18:42:59,301 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-06 18:42:59,302 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-06 18:42:59,302 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-06 18:42:59,302 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-06 18:42:59,308 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:42:59" (1/1) ... [2025-02-06 18:42:59,308 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:42:59" (1/1) ... [2025-02-06 18:42:59,310 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:42:59" (1/1) ... [2025-02-06 18:42:59,322 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]. [2025-02-06 18:42:59,323 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:42:59" (1/1) ... [2025-02-06 18:42:59,323 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:42:59" (1/1) ... [2025-02-06 18:42:59,327 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:42:59" (1/1) ... [2025-02-06 18:42:59,328 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:42:59" (1/1) ... [2025-02-06 18:42:59,328 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:42:59" (1/1) ... [2025-02-06 18:42:59,329 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:42:59" (1/1) ... [2025-02-06 18:42:59,330 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-06 18:42:59,331 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-06 18:42:59,331 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-06 18:42:59,331 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-06 18:42:59,332 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:42:59" (1/1) ... [2025-02-06 18:42:59,340 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 18:42:59,348 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 18:42:59,361 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-02-06 18:42:59,364 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-02-06 18:42:59,380 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2025-02-06 18:42:59,380 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-02-06 18:42:59,381 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-02-06 18:42:59,381 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2025-02-06 18:42:59,381 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-06 18:42:59,381 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2025-02-06 18:42:59,381 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2025-02-06 18:42:59,381 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-06 18:42:59,382 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-06 18:42:59,382 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-06 18:42:59,383 WARN L227 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-02-06 18:42:59,472 INFO L257 CfgBuilder]: Building ICFG [2025-02-06 18:42:59,474 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-06 18:42:59,675 INFO L304 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-02-06 18:42:59,676 INFO L308 CfgBuilder]: Performing block encoding [2025-02-06 18:42:59,913 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-06 18:42:59,914 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-06 18:42:59,914 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 06:42:59 BoogieIcfgContainer [2025-02-06 18:42:59,914 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-06 18:42:59,916 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-06 18:42:59,916 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-06 18:42:59,920 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-06 18:42:59,920 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.02 06:42:58" (1/3) ... [2025-02-06 18:42:59,920 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@154ac9f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 06:42:59, skipping insertion in model container [2025-02-06 18:42:59,921 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:42:59" (2/3) ... [2025-02-06 18:42:59,921 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@154ac9f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 06:42:59, skipping insertion in model container [2025-02-06 18:42:59,921 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 06:42:59" (3/3) ... [2025-02-06 18:42:59,922 INFO L128 eAbstractionObserver]: Analyzing ICFG 06-symbeq_02-funloop_norace.i [2025-02-06 18:42:59,934 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-06 18:42:59,935 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 06-symbeq_02-funloop_norace.i that has 2 procedures, 37 locations, 1 initial locations, 3 loop locations, and 10 error locations. [2025-02-06 18:42:59,935 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-02-06 18:42:59,971 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-02-06 18:42:59,998 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 40 places, 39 transitions, 82 flow [2025-02-06 18:43:00,019 INFO L124 PetriNetUnfolderBase]: 3/38 cut-off events. [2025-02-06 18:43:00,020 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-06 18:43:00,023 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 68 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. [2025-02-06 18:43:00,023 INFO L82 GeneralOperation]: Start removeDead. Operand has 40 places, 39 transitions, 82 flow [2025-02-06 18:43:00,027 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 39 places, 38 transitions, 79 flow [2025-02-06 18:43:00,032 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-06 18:43:00,044 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;@51fbe809, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-06 18:43:00,044 INFO L334 AbstractCegarLoop]: Starting to check reachability of 15 error locations. [2025-02-06 18:43:00,054 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-02-06 18:43:00,054 INFO L124 PetriNetUnfolderBase]: 1/5 cut-off events. [2025-02-06 18:43:00,054 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-06 18:43:00,054 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:43:00,056 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2025-02-06 18:43:00,056 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 12 more)] === [2025-02-06 18:43:00,060 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:43:00,060 INFO L85 PathProgramCache]: Analyzing trace with hash 329749, now seen corresponding path program 1 times [2025-02-06 18:43:00,065 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:43:00,066 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1930421730] [2025-02-06 18:43:00,068 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:43:00,068 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:43:00,125 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-06 18:43:00,149 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-06 18:43:00,150 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:43:00,150 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:43:00,331 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 18:43:00,331 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:43:00,331 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1930421730] [2025-02-06 18:43:00,332 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1930421730] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:43:00,332 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 18:43:00,332 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-06 18:43:00,333 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [691721625] [2025-02-06 18:43:00,333 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:43:00,338 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-06 18:43:00,342 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:43:00,356 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-06 18:43:00,357 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-06 18:43:00,367 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 39 [2025-02-06 18:43:00,369 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) [2025-02-06 18:43:00,369 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:43:00,370 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 39 [2025-02-06 18:43:00,370 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:43:00,504 INFO L124 PetriNetUnfolderBase]: 83/260 cut-off events. [2025-02-06 18:43:00,506 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-06 18:43:00,508 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 21. Compared 1137 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. [2025-02-06 18:43:00,510 INFO L140 encePairwiseOnDemand]: 33/39 looper letters, 24 selfloop transitions, 3 changer transitions 0/40 dead transitions. [2025-02-06 18:43:00,511 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 40 transitions, 137 flow [2025-02-06 18:43:00,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-06 18:43:00,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-02-06 18:43:00,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 86 transitions. [2025-02-06 18:43:00,521 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5512820512820513 [2025-02-06 18:43:00,522 INFO L175 Difference]: Start difference. First operand has 39 places, 38 transitions, 79 flow. Second operand 4 states and 86 transitions. [2025-02-06 18:43:00,523 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 40 transitions, 137 flow [2025-02-06 18:43:00,526 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 40 transitions, 136 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-02-06 18:43:00,527 INFO L231 Difference]: Finished difference. Result has 43 places, 40 transitions, 102 flow [2025-02-06 18:43:00,529 INFO L262 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} [2025-02-06 18:43:00,531 INFO L279 CegarLoopForPetriNet]: 39 programPoint places, 4 predicate places. [2025-02-06 18:43:00,531 INFO L471 AbstractCegarLoop]: Abstraction has has 43 places, 40 transitions, 102 flow [2025-02-06 18:43:00,531 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) [2025-02-06 18:43:00,531 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:43:00,531 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1] [2025-02-06 18:43:00,531 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-02-06 18:43:00,532 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 12 more)] === [2025-02-06 18:43:00,532 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:43:00,532 INFO L85 PathProgramCache]: Analyzing trace with hash 1233879385, now seen corresponding path program 1 times [2025-02-06 18:43:00,532 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:43:00,532 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1784334538] [2025-02-06 18:43:00,532 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:43:00,532 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:43:00,546 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-02-06 18:43:00,554 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-02-06 18:43:00,554 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:43:00,554 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:43:00,651 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 18:43:00,652 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:43:00,652 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1784334538] [2025-02-06 18:43:00,652 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1784334538] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 18:43:00,652 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1282123703] [2025-02-06 18:43:00,652 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:43:00,652 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 18:43:00,652 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 18:43:00,657 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 18:43:00,658 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-02-06 18:43:00,700 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-02-06 18:43:00,719 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-02-06 18:43:00,719 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:43:00,719 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:43:00,721 INFO L256 TraceCheckSpWp]: Trace formula consists of 154 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-02-06 18:43:00,723 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 18:43:00,759 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 18:43:00,760 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 18:43:00,761 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1282123703] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:43:00,761 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-06 18:43:00,761 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2025-02-06 18:43:00,761 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [719501796] [2025-02-06 18:43:00,762 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:43:00,762 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-06 18:43:00,762 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:43:00,762 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-06 18:43:00,762 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2025-02-06 18:43:00,770 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 39 [2025-02-06 18:43:00,770 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) [2025-02-06 18:43:00,770 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:43:00,771 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 39 [2025-02-06 18:43:00,771 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:43:00,870 INFO L124 PetriNetUnfolderBase]: 83/259 cut-off events. [2025-02-06 18:43:00,873 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2025-02-06 18:43:00,874 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 21. Compared 1133 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. [2025-02-06 18:43:00,875 INFO L140 encePairwiseOnDemand]: 34/39 looper letters, 20 selfloop transitions, 6 changer transitions 0/39 dead transitions. [2025-02-06 18:43:00,875 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 39 transitions, 150 flow [2025-02-06 18:43:00,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-06 18:43:00,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-02-06 18:43:00,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 111 transitions. [2025-02-06 18:43:00,876 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.47435897435897434 [2025-02-06 18:43:00,877 INFO L175 Difference]: Start difference. First operand has 43 places, 40 transitions, 102 flow. Second operand 6 states and 111 transitions. [2025-02-06 18:43:00,877 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 39 transitions, 150 flow [2025-02-06 18:43:00,877 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 39 transitions, 148 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-02-06 18:43:00,879 INFO L231 Difference]: Finished difference. Result has 46 places, 39 transitions, 108 flow [2025-02-06 18:43:00,879 INFO L262 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} [2025-02-06 18:43:00,880 INFO L279 CegarLoopForPetriNet]: 39 programPoint places, 7 predicate places. [2025-02-06 18:43:00,880 INFO L471 AbstractCegarLoop]: Abstraction has has 46 places, 39 transitions, 108 flow [2025-02-06 18:43:00,880 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) [2025-02-06 18:43:00,880 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:43:00,880 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1] [2025-02-06 18:43:00,887 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2025-02-06 18:43:01,081 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 18:43:01,081 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 12 more)] === [2025-02-06 18:43:01,082 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:43:01,082 INFO L85 PathProgramCache]: Analyzing trace with hash -404444468, now seen corresponding path program 1 times [2025-02-06 18:43:01,082 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:43:01,083 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1372850187] [2025-02-06 18:43:01,083 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:43:01,083 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:43:01,095 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-02-06 18:43:01,101 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-02-06 18:43:01,101 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:43:01,101 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:43:01,150 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-02-06 18:43:01,150 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:43:01,150 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1372850187] [2025-02-06 18:43:01,150 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1372850187] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:43:01,150 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 18:43:01,150 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-06 18:43:01,150 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1873445894] [2025-02-06 18:43:01,150 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:43:01,150 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-06 18:43:01,150 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:43:01,151 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 18:43:01,151 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 18:43:01,155 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 39 [2025-02-06 18:43:01,155 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) [2025-02-06 18:43:01,155 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:43:01,155 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 39 [2025-02-06 18:43:01,155 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:43:01,236 INFO L124 PetriNetUnfolderBase]: 83/258 cut-off events. [2025-02-06 18:43:01,236 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2025-02-06 18:43:01,237 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 21. Compared 1128 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. [2025-02-06 18:43:01,237 INFO L140 encePairwiseOnDemand]: 36/39 looper letters, 21 selfloop transitions, 4 changer transitions 0/38 dead transitions. [2025-02-06 18:43:01,237 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 38 transitions, 154 flow [2025-02-06 18:43:01,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 18:43:01,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-06 18:43:01,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 66 transitions. [2025-02-06 18:43:01,239 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5641025641025641 [2025-02-06 18:43:01,239 INFO L175 Difference]: Start difference. First operand has 46 places, 39 transitions, 108 flow. Second operand 3 states and 66 transitions. [2025-02-06 18:43:01,239 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 38 transitions, 154 flow [2025-02-06 18:43:01,239 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 38 transitions, 132 flow, removed 3 selfloop flow, removed 6 redundant places. [2025-02-06 18:43:01,240 INFO L231 Difference]: Finished difference. Result has 41 places, 38 transitions, 90 flow [2025-02-06 18:43:01,240 INFO L262 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} [2025-02-06 18:43:01,240 INFO L279 CegarLoopForPetriNet]: 39 programPoint places, 2 predicate places. [2025-02-06 18:43:01,240 INFO L471 AbstractCegarLoop]: Abstraction has has 41 places, 38 transitions, 90 flow [2025-02-06 18:43:01,241 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) [2025-02-06 18:43:01,241 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:43:01,241 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 18:43:01,241 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-02-06 18:43:01,241 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 12 more)] === [2025-02-06 18:43:01,241 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:43:01,241 INFO L85 PathProgramCache]: Analyzing trace with hash 404320462, now seen corresponding path program 1 times [2025-02-06 18:43:01,241 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:43:01,242 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1224306949] [2025-02-06 18:43:01,242 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:43:01,242 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:43:01,252 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 11 statements into 1 equivalence classes. [2025-02-06 18:43:01,256 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 11 of 11 statements. [2025-02-06 18:43:01,259 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:43:01,259 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:43:01,317 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 18:43:01,317 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:43:01,317 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1224306949] [2025-02-06 18:43:01,317 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1224306949] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 18:43:01,317 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [4231894] [2025-02-06 18:43:01,317 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:43:01,317 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 18:43:01,317 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 18:43:01,319 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 18:43:01,321 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-02-06 18:43:01,356 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 11 statements into 1 equivalence classes. [2025-02-06 18:43:01,375 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 11 of 11 statements. [2025-02-06 18:43:01,376 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:43:01,376 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:43:01,377 INFO L256 TraceCheckSpWp]: Trace formula consists of 185 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-02-06 18:43:01,377 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 18:43:01,392 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 18:43:01,392 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 18:43:01,415 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 18:43:01,415 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [4231894] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-06 18:43:01,415 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-06 18:43:01,415 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 9 [2025-02-06 18:43:01,415 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2086466264] [2025-02-06 18:43:01,415 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-06 18:43:01,416 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-02-06 18:43:01,416 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:43:01,416 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-02-06 18:43:01,416 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2025-02-06 18:43:01,423 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 39 [2025-02-06 18:43:01,424 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) [2025-02-06 18:43:01,424 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:43:01,424 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 39 [2025-02-06 18:43:01,424 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:43:01,503 INFO L124 PetriNetUnfolderBase]: 83/262 cut-off events. [2025-02-06 18:43:01,503 INFO L125 PetriNetUnfolderBase]: For 9/9 co-relation queries the response was YES. [2025-02-06 18:43:01,505 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 21. Compared 1119 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. [2025-02-06 18:43:01,506 INFO L140 encePairwiseOnDemand]: 35/39 looper letters, 21 selfloop transitions, 7 changer transitions 0/41 dead transitions. [2025-02-06 18:43:01,506 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 41 transitions, 161 flow [2025-02-06 18:43:01,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-02-06 18:43:01,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2025-02-06 18:43:01,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 128 transitions. [2025-02-06 18:43:01,509 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.46886446886446886 [2025-02-06 18:43:01,509 INFO L175 Difference]: Start difference. First operand has 41 places, 38 transitions, 90 flow. Second operand 7 states and 128 transitions. [2025-02-06 18:43:01,509 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 41 transitions, 161 flow [2025-02-06 18:43:01,509 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 41 transitions, 147 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-02-06 18:43:01,510 INFO L231 Difference]: Finished difference. Result has 47 places, 41 transitions, 116 flow [2025-02-06 18:43:01,510 INFO L262 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} [2025-02-06 18:43:01,510 INFO L279 CegarLoopForPetriNet]: 39 programPoint places, 8 predicate places. [2025-02-06 18:43:01,510 INFO L471 AbstractCegarLoop]: Abstraction has has 47 places, 41 transitions, 116 flow [2025-02-06 18:43:01,510 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) [2025-02-06 18:43:01,510 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:43:01,510 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 18:43:01,520 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2025-02-06 18:43:01,711 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 18:43:01,711 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 12 more)] === [2025-02-06 18:43:01,711 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:43:01,712 INFO L85 PathProgramCache]: Analyzing trace with hash -547866034, now seen corresponding path program 2 times [2025-02-06 18:43:01,712 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:43:01,712 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1944147065] [2025-02-06 18:43:01,712 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-06 18:43:01,712 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:43:01,723 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 17 statements into 2 equivalence classes. [2025-02-06 18:43:01,731 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 8 of 17 statements. [2025-02-06 18:43:01,731 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-06 18:43:01,731 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:43:01,898 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2025-02-06 18:43:01,898 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:43:01,898 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1944147065] [2025-02-06 18:43:01,900 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1944147065] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:43:01,900 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 18:43:01,900 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-06 18:43:01,900 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1030433098] [2025-02-06 18:43:01,901 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:43:01,901 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-06 18:43:01,901 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:43:01,901 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-06 18:43:01,901 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-02-06 18:43:01,907 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 39 [2025-02-06 18:43:01,908 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 41 transitions, 116 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) [2025-02-06 18:43:01,909 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:43:01,909 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 39 [2025-02-06 18:43:01,909 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:43:02,085 INFO L124 PetriNetUnfolderBase]: 152/377 cut-off events. [2025-02-06 18:43:02,085 INFO L125 PetriNetUnfolderBase]: For 15/15 co-relation queries the response was YES. [2025-02-06 18:43:02,086 INFO L83 FinitePrefix]: Finished finitePrefix Result has 702 conditions, 377 events. 152/377 cut-off events. For 15/15 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 1658 event pairs, 16 based on Foata normal form. 14/322 useless extension candidates. Maximal degree in co-relation 664. Up to 197 conditions per place. [2025-02-06 18:43:02,088 INFO L140 encePairwiseOnDemand]: 30/39 looper letters, 60 selfloop transitions, 11 changer transitions 0/82 dead transitions. [2025-02-06 18:43:02,088 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 82 transitions, 340 flow [2025-02-06 18:43:02,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-02-06 18:43:02,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2025-02-06 18:43:02,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 167 transitions. [2025-02-06 18:43:02,089 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6117216117216118 [2025-02-06 18:43:02,090 INFO L175 Difference]: Start difference. First operand has 47 places, 41 transitions, 116 flow. Second operand 7 states and 167 transitions. [2025-02-06 18:43:02,090 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 82 transitions, 340 flow [2025-02-06 18:43:02,090 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 82 transitions, 336 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-02-06 18:43:02,092 INFO L231 Difference]: Finished difference. Result has 57 places, 52 transitions, 198 flow [2025-02-06 18:43:02,093 INFO L262 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=198, PETRI_PLACES=57, PETRI_TRANSITIONS=52} [2025-02-06 18:43:02,094 INFO L279 CegarLoopForPetriNet]: 39 programPoint places, 18 predicate places. [2025-02-06 18:43:02,094 INFO L471 AbstractCegarLoop]: Abstraction has has 57 places, 52 transitions, 198 flow [2025-02-06 18:43:02,094 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) [2025-02-06 18:43:02,094 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:43:02,095 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 18:43:02,095 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-02-06 18:43:02,095 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 12 more)] === [2025-02-06 18:43:02,096 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:43:02,096 INFO L85 PathProgramCache]: Analyzing trace with hash -530597324, now seen corresponding path program 1 times [2025-02-06 18:43:02,096 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:43:02,096 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [904757623] [2025-02-06 18:43:02,096 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:43:02,096 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:43:02,104 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 17 statements into 1 equivalence classes. [2025-02-06 18:43:02,108 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 17 of 17 statements. [2025-02-06 18:43:02,110 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:43:02,110 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:43:02,197 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 18:43:02,197 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:43:02,197 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [904757623] [2025-02-06 18:43:02,197 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [904757623] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 18:43:02,197 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [22138024] [2025-02-06 18:43:02,198 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:43:02,198 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 18:43:02,198 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 18:43:02,199 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 18:43:02,210 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-02-06 18:43:02,241 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 17 statements into 1 equivalence classes. [2025-02-06 18:43:02,261 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 17 of 17 statements. [2025-02-06 18:43:02,261 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:43:02,261 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:43:02,262 INFO L256 TraceCheckSpWp]: Trace formula consists of 211 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-02-06 18:43:02,263 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 18:43:02,293 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 18:43:02,293 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 18:43:02,358 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 18:43:02,358 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [22138024] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-06 18:43:02,358 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-06 18:43:02,358 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 17 [2025-02-06 18:43:02,358 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1546349550] [2025-02-06 18:43:02,358 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-06 18:43:02,359 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2025-02-06 18:43:02,359 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:43:02,359 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2025-02-06 18:43:02,359 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2025-02-06 18:43:02,374 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 39 [2025-02-06 18:43:02,375 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 52 transitions, 198 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) [2025-02-06 18:43:02,375 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:43:02,375 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 39 [2025-02-06 18:43:02,375 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:43:02,527 INFO L124 PetriNetUnfolderBase]: 121/376 cut-off events. [2025-02-06 18:43:02,528 INFO L125 PetriNetUnfolderBase]: For 174/183 co-relation queries the response was YES. [2025-02-06 18:43:02,528 INFO L83 FinitePrefix]: Finished finitePrefix Result has 847 conditions, 376 events. 121/376 cut-off events. For 174/183 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 1781 event pairs, 63 based on Foata normal form. 4/331 useless extension candidates. Maximal degree in co-relation 767. Up to 241 conditions per place. [2025-02-06 18:43:02,529 INFO L140 encePairwiseOnDemand]: 35/39 looper letters, 31 selfloop transitions, 15 changer transitions 0/60 dead transitions. [2025-02-06 18:43:02,530 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 60 transitions, 338 flow [2025-02-06 18:43:02,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2025-02-06 18:43:02,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2025-02-06 18:43:02,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 250 transitions. [2025-02-06 18:43:02,531 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.42735042735042733 [2025-02-06 18:43:02,531 INFO L175 Difference]: Start difference. First operand has 57 places, 52 transitions, 198 flow. Second operand 15 states and 250 transitions. [2025-02-06 18:43:02,531 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 71 places, 60 transitions, 338 flow [2025-02-06 18:43:02,533 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 60 transitions, 338 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-02-06 18:43:02,533 INFO L231 Difference]: Finished difference. Result has 75 places, 60 transitions, 295 flow [2025-02-06 18:43:02,534 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=39, PETRI_DIFFERENCE_MINUEND_FLOW=198, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=295, PETRI_PLACES=75, PETRI_TRANSITIONS=60} [2025-02-06 18:43:02,534 INFO L279 CegarLoopForPetriNet]: 39 programPoint places, 36 predicate places. [2025-02-06 18:43:02,534 INFO L471 AbstractCegarLoop]: Abstraction has has 75 places, 60 transitions, 295 flow [2025-02-06 18:43:02,534 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) [2025-02-06 18:43:02,534 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:43:02,534 INFO L206 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 18:43:02,541 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2025-02-06 18:43:02,739 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 18:43:02,739 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 12 more)] === [2025-02-06 18:43:02,739 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:43:02,739 INFO L85 PathProgramCache]: Analyzing trace with hash -190976716, now seen corresponding path program 2 times [2025-02-06 18:43:02,739 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:43:02,739 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [497276642] [2025-02-06 18:43:02,740 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-06 18:43:02,740 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:43:02,750 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 29 statements into 2 equivalence classes. [2025-02-06 18:43:02,753 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 8 of 29 statements. [2025-02-06 18:43:02,753 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-06 18:43:02,753 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:43:02,859 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2025-02-06 18:43:02,859 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:43:02,859 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [497276642] [2025-02-06 18:43:02,859 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [497276642] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:43:02,859 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 18:43:02,859 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-06 18:43:02,859 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [496554697] [2025-02-06 18:43:02,859 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:43:02,859 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-06 18:43:02,859 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:43:02,860 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-06 18:43:02,860 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-02-06 18:43:02,866 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 39 [2025-02-06 18:43:02,867 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 75 places, 60 transitions, 295 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) [2025-02-06 18:43:02,867 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:43:02,867 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 39 [2025-02-06 18:43:02,867 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:43:03,021 INFO L124 PetriNetUnfolderBase]: 145/404 cut-off events. [2025-02-06 18:43:03,022 INFO L125 PetriNetUnfolderBase]: For 240/255 co-relation queries the response was YES. [2025-02-06 18:43:03,023 INFO L83 FinitePrefix]: Finished finitePrefix Result has 965 conditions, 404 events. 145/404 cut-off events. For 240/255 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 1869 event pairs, 34 based on Foata normal form. 28/392 useless extension candidates. Maximal degree in co-relation 860. Up to 236 conditions per place. [2025-02-06 18:43:03,025 INFO L140 encePairwiseOnDemand]: 30/39 looper letters, 64 selfloop transitions, 14 changer transitions 0/90 dead transitions. [2025-02-06 18:43:03,025 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 81 places, 90 transitions, 571 flow [2025-02-06 18:43:03,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-02-06 18:43:03,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2025-02-06 18:43:03,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 162 transitions. [2025-02-06 18:43:03,027 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5934065934065934 [2025-02-06 18:43:03,027 INFO L175 Difference]: Start difference. First operand has 75 places, 60 transitions, 295 flow. Second operand 7 states and 162 transitions. [2025-02-06 18:43:03,027 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 81 places, 90 transitions, 571 flow [2025-02-06 18:43:03,030 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 77 places, 90 transitions, 561 flow, removed 1 selfloop flow, removed 4 redundant places. [2025-02-06 18:43:03,033 INFO L231 Difference]: Finished difference. Result has 82 places, 68 transitions, 383 flow [2025-02-06 18:43:03,033 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=39, PETRI_DIFFERENCE_MINUEND_FLOW=285, PETRI_DIFFERENCE_MINUEND_PLACES=71, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=60, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=383, PETRI_PLACES=82, PETRI_TRANSITIONS=68} [2025-02-06 18:43:03,034 INFO L279 CegarLoopForPetriNet]: 39 programPoint places, 43 predicate places. [2025-02-06 18:43:03,035 INFO L471 AbstractCegarLoop]: Abstraction has has 82 places, 68 transitions, 383 flow [2025-02-06 18:43:03,035 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) [2025-02-06 18:43:03,035 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:43:03,035 INFO L206 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 18:43:03,035 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-02-06 18:43:03,036 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 12 more)] === [2025-02-06 18:43:03,036 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:43:03,036 INFO L85 PathProgramCache]: Analyzing trace with hash 2134326649, now seen corresponding path program 1 times [2025-02-06 18:43:03,036 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:43:03,036 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [456924376] [2025-02-06 18:43:03,036 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:43:03,037 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:43:03,046 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 30 statements into 1 equivalence classes. [2025-02-06 18:43:03,058 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 30 of 30 statements. [2025-02-06 18:43:03,058 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:43:03,059 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:43:03,288 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 18:43:03,288 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:43:03,288 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [456924376] [2025-02-06 18:43:03,288 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [456924376] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 18:43:03,288 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1814621165] [2025-02-06 18:43:03,288 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:43:03,289 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 18:43:03,289 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 18:43:03,291 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 18:43:03,292 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-02-06 18:43:03,335 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 30 statements into 1 equivalence classes. [2025-02-06 18:43:03,367 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 30 of 30 statements. [2025-02-06 18:43:03,367 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:43:03,367 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:43:03,368 INFO L256 TraceCheckSpWp]: Trace formula consists of 252 conjuncts, 16 conjuncts are in the unsatisfiable core [2025-02-06 18:43:03,369 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 18:43:03,412 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 18:43:03,413 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 18:43:03,560 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 18:43:03,560 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1814621165] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-06 18:43:03,560 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-06 18:43:03,560 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16, 16] total 22 [2025-02-06 18:43:03,560 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1174676996] [2025-02-06 18:43:03,560 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-06 18:43:03,560 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2025-02-06 18:43:03,561 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:43:03,561 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2025-02-06 18:43:03,561 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2025-02-06 18:43:03,577 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 39 [2025-02-06 18:43:03,578 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 82 places, 68 transitions, 383 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) [2025-02-06 18:43:03,578 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:43:03,578 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 39 [2025-02-06 18:43:03,578 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:43:03,765 INFO L124 PetriNetUnfolderBase]: 125/394 cut-off events. [2025-02-06 18:43:03,766 INFO L125 PetriNetUnfolderBase]: For 389/399 co-relation queries the response was YES. [2025-02-06 18:43:03,767 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1091 conditions, 394 events. 125/394 cut-off events. For 389/399 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 1836 event pairs, 52 based on Foata normal form. 3/362 useless extension candidates. Maximal degree in co-relation 948. Up to 248 conditions per place. [2025-02-06 18:43:03,768 INFO L140 encePairwiseOnDemand]: 35/39 looper letters, 39 selfloop transitions, 21 changer transitions 0/74 dead transitions. [2025-02-06 18:43:03,768 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 102 places, 74 transitions, 557 flow [2025-02-06 18:43:03,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2025-02-06 18:43:03,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2025-02-06 18:43:03,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 339 transitions. [2025-02-06 18:43:03,769 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4139194139194139 [2025-02-06 18:43:03,769 INFO L175 Difference]: Start difference. First operand has 82 places, 68 transitions, 383 flow. Second operand 21 states and 339 transitions. [2025-02-06 18:43:03,770 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 102 places, 74 transitions, 557 flow [2025-02-06 18:43:03,772 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 101 places, 74 transitions, 547 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-02-06 18:43:03,773 INFO L231 Difference]: Finished difference. Result has 104 places, 74 transitions, 484 flow [2025-02-06 18:43:03,773 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=39, PETRI_DIFFERENCE_MINUEND_FLOW=373, PETRI_DIFFERENCE_MINUEND_PLACES=81, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=68, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=52, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=484, PETRI_PLACES=104, PETRI_TRANSITIONS=74} [2025-02-06 18:43:03,773 INFO L279 CegarLoopForPetriNet]: 39 programPoint places, 65 predicate places. [2025-02-06 18:43:03,773 INFO L471 AbstractCegarLoop]: Abstraction has has 104 places, 74 transitions, 484 flow [2025-02-06 18:43:03,774 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) [2025-02-06 18:43:03,774 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:43:03,774 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 18:43:03,780 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2025-02-06 18:43:03,974 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2025-02-06 18:43:03,975 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 12 more)] === [2025-02-06 18:43:03,975 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:43:03,975 INFO L85 PathProgramCache]: Analyzing trace with hash -456015051, now seen corresponding path program 2 times [2025-02-06 18:43:03,975 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:43:03,975 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [570860532] [2025-02-06 18:43:03,975 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-06 18:43:03,975 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:43:03,983 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 39 statements into 2 equivalence classes. [2025-02-06 18:43:03,987 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 9 of 39 statements. [2025-02-06 18:43:03,987 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-06 18:43:03,987 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:43:04,073 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2025-02-06 18:43:04,073 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:43:04,073 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [570860532] [2025-02-06 18:43:04,073 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [570860532] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:43:04,073 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 18:43:04,073 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-06 18:43:04,074 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1061345041] [2025-02-06 18:43:04,074 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:43:04,074 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-06 18:43:04,074 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:43:04,074 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-06 18:43:04,074 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-02-06 18:43:04,083 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 39 [2025-02-06 18:43:04,084 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 104 places, 74 transitions, 484 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) [2025-02-06 18:43:04,084 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:43:04,084 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 39 [2025-02-06 18:43:04,084 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:43:04,230 INFO L124 PetriNetUnfolderBase]: 143/415 cut-off events. [2025-02-06 18:43:04,231 INFO L125 PetriNetUnfolderBase]: For 474/476 co-relation queries the response was YES. [2025-02-06 18:43:04,232 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1178 conditions, 415 events. 143/415 cut-off events. For 474/476 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 1885 event pairs, 36 based on Foata normal form. 15/390 useless extension candidates. Maximal degree in co-relation 1007. Up to 234 conditions per place. [2025-02-06 18:43:04,234 INFO L140 encePairwiseOnDemand]: 32/39 looper letters, 71 selfloop transitions, 13 changer transitions 0/95 dead transitions. [2025-02-06 18:43:04,234 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 110 places, 95 transitions, 738 flow [2025-02-06 18:43:04,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-02-06 18:43:04,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2025-02-06 18:43:04,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 159 transitions. [2025-02-06 18:43:04,235 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5824175824175825 [2025-02-06 18:43:04,235 INFO L175 Difference]: Start difference. First operand has 104 places, 74 transitions, 484 flow. Second operand 7 states and 159 transitions. [2025-02-06 18:43:04,235 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 110 places, 95 transitions, 738 flow [2025-02-06 18:43:04,238 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 96 places, 95 transitions, 685 flow, removed 1 selfloop flow, removed 14 redundant places. [2025-02-06 18:43:04,242 INFO L231 Difference]: Finished difference. Result has 96 places, 73 transitions, 453 flow [2025-02-06 18:43:04,243 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=39, PETRI_DIFFERENCE_MINUEND_FLOW=427, PETRI_DIFFERENCE_MINUEND_PLACES=90, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=73, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=60, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=453, PETRI_PLACES=96, PETRI_TRANSITIONS=73} [2025-02-06 18:43:04,243 INFO L279 CegarLoopForPetriNet]: 39 programPoint places, 57 predicate places. [2025-02-06 18:43:04,243 INFO L471 AbstractCegarLoop]: Abstraction has has 96 places, 73 transitions, 453 flow [2025-02-06 18:43:04,243 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) [2025-02-06 18:43:04,243 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:43:04,243 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 18:43:04,243 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-02-06 18:43:04,243 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 12 more)] === [2025-02-06 18:43:04,244 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:43:04,244 INFO L85 PathProgramCache]: Analyzing trace with hash 641178042, now seen corresponding path program 1 times [2025-02-06 18:43:04,244 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:43:04,244 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [707579195] [2025-02-06 18:43:04,244 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:43:04,244 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:43:04,254 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 42 statements into 1 equivalence classes. [2025-02-06 18:43:04,260 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 42 of 42 statements. [2025-02-06 18:43:04,260 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:43:04,260 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:43:04,308 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2025-02-06 18:43:04,308 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:43:04,308 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [707579195] [2025-02-06 18:43:04,308 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [707579195] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:43:04,309 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 18:43:04,309 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-06 18:43:04,309 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2090959583] [2025-02-06 18:43:04,309 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:43:04,309 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-06 18:43:04,309 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:43:04,309 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-06 18:43:04,309 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-06 18:43:04,315 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 39 [2025-02-06 18:43:04,315 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 96 places, 73 transitions, 453 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) [2025-02-06 18:43:04,315 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:43:04,315 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 39 [2025-02-06 18:43:04,315 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:43:04,427 INFO L124 PetriNetUnfolderBase]: 208/563 cut-off events. [2025-02-06 18:43:04,427 INFO L125 PetriNetUnfolderBase]: For 525/529 co-relation queries the response was YES. [2025-02-06 18:43:04,429 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1553 conditions, 563 events. 208/563 cut-off events. For 525/529 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 2597 event pairs, 49 based on Foata normal form. 12/530 useless extension candidates. Maximal degree in co-relation 1403. Up to 249 conditions per place. [2025-02-06 18:43:04,430 INFO L140 encePairwiseOnDemand]: 33/39 looper letters, 89 selfloop transitions, 4 changer transitions 0/104 dead transitions. [2025-02-06 18:43:04,430 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 99 places, 104 transitions, 761 flow [2025-02-06 18:43:04,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-06 18:43:04,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-02-06 18:43:04,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 109 transitions. [2025-02-06 18:43:04,432 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6987179487179487 [2025-02-06 18:43:04,432 INFO L175 Difference]: Start difference. First operand has 96 places, 73 transitions, 453 flow. Second operand 4 states and 109 transitions. [2025-02-06 18:43:04,432 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 99 places, 104 transitions, 761 flow [2025-02-06 18:43:04,436 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 94 places, 104 transitions, 729 flow, removed 0 selfloop flow, removed 5 redundant places. [2025-02-06 18:43:04,437 INFO L231 Difference]: Finished difference. Result has 96 places, 75 transitions, 456 flow [2025-02-06 18:43:04,438 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=39, PETRI_DIFFERENCE_MINUEND_FLOW=429, PETRI_DIFFERENCE_MINUEND_PLACES=91, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=73, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=69, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=456, PETRI_PLACES=96, PETRI_TRANSITIONS=75} [2025-02-06 18:43:04,439 INFO L279 CegarLoopForPetriNet]: 39 programPoint places, 57 predicate places. [2025-02-06 18:43:04,439 INFO L471 AbstractCegarLoop]: Abstraction has has 96 places, 75 transitions, 456 flow [2025-02-06 18:43:04,439 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) [2025-02-06 18:43:04,439 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:43:04,439 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 18:43:04,439 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2025-02-06 18:43:04,439 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 12 more)] === [2025-02-06 18:43:04,440 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:43:04,440 INFO L85 PathProgramCache]: Analyzing trace with hash -162503201, now seen corresponding path program 1 times [2025-02-06 18:43:04,440 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:43:04,440 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2124643606] [2025-02-06 18:43:04,440 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:43:04,440 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:43:04,453 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 42 statements into 1 equivalence classes. [2025-02-06 18:43:04,458 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 42 of 42 statements. [2025-02-06 18:43:04,459 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:43:04,459 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:43:04,509 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2025-02-06 18:43:04,509 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:43:04,509 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2124643606] [2025-02-06 18:43:04,510 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2124643606] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:43:04,510 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 18:43:04,510 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-06 18:43:04,510 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2072761836] [2025-02-06 18:43:04,510 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:43:04,510 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-06 18:43:04,510 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:43:04,511 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-06 18:43:04,511 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-06 18:43:04,515 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 39 [2025-02-06 18:43:04,516 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 96 places, 75 transitions, 456 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) [2025-02-06 18:43:04,516 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:43:04,516 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 39 [2025-02-06 18:43:04,516 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:43:04,647 INFO L124 PetriNetUnfolderBase]: 318/864 cut-off events. [2025-02-06 18:43:04,648 INFO L125 PetriNetUnfolderBase]: For 812/851 co-relation queries the response was YES. [2025-02-06 18:43:04,650 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2348 conditions, 864 events. 318/864 cut-off events. For 812/851 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 4407 event pairs, 139 based on Foata normal form. 19/849 useless extension candidates. Maximal degree in co-relation 2197. Up to 401 conditions per place. [2025-02-06 18:43:04,652 INFO L140 encePairwiseOnDemand]: 33/39 looper letters, 95 selfloop transitions, 4 changer transitions 0/110 dead transitions. [2025-02-06 18:43:04,653 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 99 places, 110 transitions, 813 flow [2025-02-06 18:43:04,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-06 18:43:04,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-02-06 18:43:04,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 109 transitions. [2025-02-06 18:43:04,654 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6987179487179487 [2025-02-06 18:43:04,654 INFO L175 Difference]: Start difference. First operand has 96 places, 75 transitions, 456 flow. Second operand 4 states and 109 transitions. [2025-02-06 18:43:04,654 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 99 places, 110 transitions, 813 flow [2025-02-06 18:43:04,658 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 98 places, 110 transitions, 805 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-02-06 18:43:04,659 INFO L231 Difference]: Finished difference. Result has 100 places, 77 transitions, 480 flow [2025-02-06 18:43:04,659 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=39, PETRI_DIFFERENCE_MINUEND_FLOW=453, PETRI_DIFFERENCE_MINUEND_PLACES=95, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=75, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=71, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=480, PETRI_PLACES=100, PETRI_TRANSITIONS=77} [2025-02-06 18:43:04,660 INFO L279 CegarLoopForPetriNet]: 39 programPoint places, 61 predicate places. [2025-02-06 18:43:04,660 INFO L471 AbstractCegarLoop]: Abstraction has has 100 places, 77 transitions, 480 flow [2025-02-06 18:43:04,660 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) [2025-02-06 18:43:04,660 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:43:04,660 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 18:43:04,660 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2025-02-06 18:43:04,660 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 12 more)] === [2025-02-06 18:43:04,661 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:43:04,662 INFO L85 PathProgramCache]: Analyzing trace with hash 856454757, now seen corresponding path program 1 times [2025-02-06 18:43:04,662 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:43:04,662 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [869492452] [2025-02-06 18:43:04,662 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:43:04,662 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:43:04,670 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 44 statements into 1 equivalence classes. [2025-02-06 18:43:04,685 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 44 of 44 statements. [2025-02-06 18:43:04,685 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:43:04,685 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:43:05,074 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2025-02-06 18:43:05,076 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:43:05,076 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [869492452] [2025-02-06 18:43:05,076 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [869492452] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:43:05,076 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 18:43:05,076 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-02-06 18:43:05,076 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1599652715] [2025-02-06 18:43:05,076 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:43:05,076 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-02-06 18:43:05,076 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:43:05,077 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-02-06 18:43:05,077 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2025-02-06 18:43:05,077 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 39 [2025-02-06 18:43:05,077 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 100 places, 77 transitions, 480 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) [2025-02-06 18:43:05,077 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:43:05,077 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 39 [2025-02-06 18:43:05,077 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:43:05,354 INFO L124 PetriNetUnfolderBase]: 318/914 cut-off events. [2025-02-06 18:43:05,355 INFO L125 PetriNetUnfolderBase]: For 976/1010 co-relation queries the response was YES. [2025-02-06 18:43:05,357 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2626 conditions, 914 events. 318/914 cut-off events. For 976/1010 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 5015 event pairs, 84 based on Foata normal form. 7/920 useless extension candidates. Maximal degree in co-relation 2473. Up to 331 conditions per place. [2025-02-06 18:43:05,360 INFO L140 encePairwiseOnDemand]: 28/39 looper letters, 113 selfloop transitions, 16 changer transitions 0/142 dead transitions. [2025-02-06 18:43:05,360 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 107 places, 142 transitions, 1058 flow [2025-02-06 18:43:05,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-02-06 18:43:05,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2025-02-06 18:43:05,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 196 transitions. [2025-02-06 18:43:05,361 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6282051282051282 [2025-02-06 18:43:05,361 INFO L175 Difference]: Start difference. First operand has 100 places, 77 transitions, 480 flow. Second operand 8 states and 196 transitions. [2025-02-06 18:43:05,361 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 107 places, 142 transitions, 1058 flow [2025-02-06 18:43:05,366 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 106 places, 142 transitions, 1046 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-02-06 18:43:05,367 INFO L231 Difference]: Finished difference. Result has 111 places, 88 transitions, 596 flow [2025-02-06 18:43:05,367 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=39, PETRI_DIFFERENCE_MINUEND_FLOW=477, PETRI_DIFFERENCE_MINUEND_PLACES=99, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=77, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=63, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=596, PETRI_PLACES=111, PETRI_TRANSITIONS=88} [2025-02-06 18:43:05,369 INFO L279 CegarLoopForPetriNet]: 39 programPoint places, 72 predicate places. [2025-02-06 18:43:05,369 INFO L471 AbstractCegarLoop]: Abstraction has has 111 places, 88 transitions, 596 flow [2025-02-06 18:43:05,369 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) [2025-02-06 18:43:05,369 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:43:05,369 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 18:43:05,369 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2025-02-06 18:43:05,369 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 12 more)] === [2025-02-06 18:43:05,370 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:43:05,370 INFO L85 PathProgramCache]: Analyzing trace with hash 845129387, now seen corresponding path program 2 times [2025-02-06 18:43:05,370 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:43:05,370 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1386305716] [2025-02-06 18:43:05,370 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-06 18:43:05,370 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:43:05,381 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 44 statements into 2 equivalence classes. [2025-02-06 18:43:05,385 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 14 of 44 statements. [2025-02-06 18:43:05,385 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-06 18:43:05,385 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:43:05,567 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2025-02-06 18:43:05,568 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:43:05,568 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1386305716] [2025-02-06 18:43:05,568 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1386305716] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:43:05,568 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 18:43:05,568 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2025-02-06 18:43:05,568 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [630171038] [2025-02-06 18:43:05,568 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:43:05,568 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-02-06 18:43:05,568 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:43:05,569 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-02-06 18:43:05,569 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2025-02-06 18:43:05,569 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 39 [2025-02-06 18:43:05,569 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 111 places, 88 transitions, 596 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) [2025-02-06 18:43:05,569 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:43:05,569 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 39 [2025-02-06 18:43:05,569 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:43:05,916 INFO L124 PetriNetUnfolderBase]: 383/1090 cut-off events. [2025-02-06 18:43:05,917 INFO L125 PetriNetUnfolderBase]: For 1699/1762 co-relation queries the response was YES. [2025-02-06 18:43:05,920 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3542 conditions, 1090 events. 383/1090 cut-off events. For 1699/1762 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 6389 event pairs, 53 based on Foata normal form. 7/1097 useless extension candidates. Maximal degree in co-relation 3383. Up to 332 conditions per place. [2025-02-06 18:43:05,926 INFO L140 encePairwiseOnDemand]: 28/39 looper letters, 137 selfloop transitions, 48 changer transitions 0/198 dead transitions. [2025-02-06 18:43:05,926 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 122 places, 198 transitions, 1605 flow [2025-02-06 18:43:05,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-02-06 18:43:05,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2025-02-06 18:43:05,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 288 transitions. [2025-02-06 18:43:05,928 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6153846153846154 [2025-02-06 18:43:05,928 INFO L175 Difference]: Start difference. First operand has 111 places, 88 transitions, 596 flow. Second operand 12 states and 288 transitions. [2025-02-06 18:43:05,928 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 122 places, 198 transitions, 1605 flow [2025-02-06 18:43:05,935 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 120 places, 198 transitions, 1592 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-02-06 18:43:05,937 INFO L231 Difference]: Finished difference. Result has 126 places, 123 transitions, 967 flow [2025-02-06 18:43:05,937 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=39, PETRI_DIFFERENCE_MINUEND_FLOW=592, PETRI_DIFFERENCE_MINUEND_PLACES=109, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=88, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=64, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=967, PETRI_PLACES=126, PETRI_TRANSITIONS=123} [2025-02-06 18:43:05,938 INFO L279 CegarLoopForPetriNet]: 39 programPoint places, 87 predicate places. [2025-02-06 18:43:05,938 INFO L471 AbstractCegarLoop]: Abstraction has has 126 places, 123 transitions, 967 flow [2025-02-06 18:43:05,938 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) [2025-02-06 18:43:05,938 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:43:05,938 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 18:43:05,938 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2025-02-06 18:43:05,939 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 12 more)] === [2025-02-06 18:43:05,939 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:43:05,939 INFO L85 PathProgramCache]: Analyzing trace with hash -511220181, now seen corresponding path program 3 times [2025-02-06 18:43:05,939 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:43:05,939 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [320711790] [2025-02-06 18:43:05,939 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-02-06 18:43:05,939 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:43:05,947 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 44 statements into 11 equivalence classes. [2025-02-06 18:43:05,951 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) and asserted 14 of 44 statements. [2025-02-06 18:43:05,951 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2025-02-06 18:43:05,951 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:43:06,135 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2025-02-06 18:43:06,135 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:43:06,135 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [320711790] [2025-02-06 18:43:06,135 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [320711790] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:43:06,135 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 18:43:06,135 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2025-02-06 18:43:06,135 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1777248428] [2025-02-06 18:43:06,135 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:43:06,136 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-02-06 18:43:06,136 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:43:06,136 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-02-06 18:43:06,136 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2025-02-06 18:43:06,136 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 39 [2025-02-06 18:43:06,137 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 126 places, 123 transitions, 967 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) [2025-02-06 18:43:06,137 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:43:06,137 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 39 [2025-02-06 18:43:06,137 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:43:06,523 INFO L124 PetriNetUnfolderBase]: 403/1155 cut-off events. [2025-02-06 18:43:06,524 INFO L125 PetriNetUnfolderBase]: For 2875/2937 co-relation queries the response was YES. [2025-02-06 18:43:06,527 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4304 conditions, 1155 events. 403/1155 cut-off events. For 2875/2937 co-relation queries the response was YES. Maximal size of possible extension queue 52. Compared 6934 event pairs, 56 based on Foata normal form. 18/1172 useless extension candidates. Maximal degree in co-relation 4138. Up to 330 conditions per place. [2025-02-06 18:43:06,530 INFO L140 encePairwiseOnDemand]: 26/39 looper letters, 152 selfloop transitions, 57 changer transitions 0/222 dead transitions. [2025-02-06 18:43:06,531 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 136 places, 222 transitions, 2092 flow [2025-02-06 18:43:06,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-02-06 18:43:06,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2025-02-06 18:43:06,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 271 transitions. [2025-02-06 18:43:06,532 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6317016317016317 [2025-02-06 18:43:06,533 INFO L175 Difference]: Start difference. First operand has 126 places, 123 transitions, 967 flow. Second operand 11 states and 271 transitions. [2025-02-06 18:43:06,533 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 136 places, 222 transitions, 2092 flow [2025-02-06 18:43:06,542 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 134 places, 222 transitions, 2015 flow, removed 30 selfloop flow, removed 2 redundant places. [2025-02-06 18:43:06,545 INFO L231 Difference]: Finished difference. Result has 139 places, 142 transitions, 1307 flow [2025-02-06 18:43:06,545 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=39, PETRI_DIFFERENCE_MINUEND_FLOW=939, PETRI_DIFFERENCE_MINUEND_PLACES=124, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=123, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=38, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=73, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=1307, PETRI_PLACES=139, PETRI_TRANSITIONS=142} [2025-02-06 18:43:06,545 INFO L279 CegarLoopForPetriNet]: 39 programPoint places, 100 predicate places. [2025-02-06 18:43:06,545 INFO L471 AbstractCegarLoop]: Abstraction has has 139 places, 142 transitions, 1307 flow [2025-02-06 18:43:06,546 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) [2025-02-06 18:43:06,546 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:43:06,546 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 18:43:06,546 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2025-02-06 18:43:06,546 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 12 more)] === [2025-02-06 18:43:06,546 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:43:06,547 INFO L85 PathProgramCache]: Analyzing trace with hash -705858951, now seen corresponding path program 1 times [2025-02-06 18:43:06,547 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:43:06,547 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1233742528] [2025-02-06 18:43:06,547 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:43:06,547 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:43:06,560 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 44 statements into 1 equivalence classes. [2025-02-06 18:43:06,574 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 44 of 44 statements. [2025-02-06 18:43:06,574 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:43:06,574 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:43:06,877 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2025-02-06 18:43:06,877 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:43:06,877 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1233742528] [2025-02-06 18:43:06,877 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1233742528] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:43:06,877 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 18:43:06,877 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-02-06 18:43:06,877 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2087612763] [2025-02-06 18:43:06,877 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:43:06,878 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-02-06 18:43:06,878 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:43:06,878 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-02-06 18:43:06,878 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2025-02-06 18:43:06,878 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 39 [2025-02-06 18:43:06,878 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 139 places, 142 transitions, 1307 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) [2025-02-06 18:43:06,878 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:43:06,878 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 39 [2025-02-06 18:43:06,878 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:43:07,190 INFO L124 PetriNetUnfolderBase]: 452/1290 cut-off events. [2025-02-06 18:43:07,191 INFO L125 PetriNetUnfolderBase]: For 4498/4565 co-relation queries the response was YES. [2025-02-06 18:43:07,196 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5206 conditions, 1290 events. 452/1290 cut-off events. For 4498/4565 co-relation queries the response was YES. Maximal size of possible extension queue 52. Compared 7871 event pairs, 134 based on Foata normal form. 9/1299 useless extension candidates. Maximal degree in co-relation 5034. Up to 441 conditions per place. [2025-02-06 18:43:07,201 INFO L140 encePairwiseOnDemand]: 27/39 looper letters, 167 selfloop transitions, 42 changer transitions 0/222 dead transitions. [2025-02-06 18:43:07,201 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 146 places, 222 transitions, 2361 flow [2025-02-06 18:43:07,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-02-06 18:43:07,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2025-02-06 18:43:07,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 202 transitions. [2025-02-06 18:43:07,202 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6474358974358975 [2025-02-06 18:43:07,203 INFO L175 Difference]: Start difference. First operand has 139 places, 142 transitions, 1307 flow. Second operand 8 states and 202 transitions. [2025-02-06 18:43:07,203 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 146 places, 222 transitions, 2361 flow [2025-02-06 18:43:07,216 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 143 places, 222 transitions, 2266 flow, removed 10 selfloop flow, removed 3 redundant places. [2025-02-06 18:43:07,219 INFO L231 Difference]: Finished difference. Result has 147 places, 156 transitions, 1542 flow [2025-02-06 18:43:07,219 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=39, PETRI_DIFFERENCE_MINUEND_FLOW=1249, PETRI_DIFFERENCE_MINUEND_PLACES=136, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=142, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=29, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=104, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=1542, PETRI_PLACES=147, PETRI_TRANSITIONS=156} [2025-02-06 18:43:07,219 INFO L279 CegarLoopForPetriNet]: 39 programPoint places, 108 predicate places. [2025-02-06 18:43:07,220 INFO L471 AbstractCegarLoop]: Abstraction has has 147 places, 156 transitions, 1542 flow [2025-02-06 18:43:07,220 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) [2025-02-06 18:43:07,220 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:43:07,220 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 18:43:07,220 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2025-02-06 18:43:07,220 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 12 more)] === [2025-02-06 18:43:07,220 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:43:07,221 INFO L85 PathProgramCache]: Analyzing trace with hash -1054327311, now seen corresponding path program 4 times [2025-02-06 18:43:07,221 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:43:07,221 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2062471773] [2025-02-06 18:43:07,221 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-02-06 18:43:07,221 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:43:07,232 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 44 statements into 2 equivalence classes. [2025-02-06 18:43:07,239 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 44 of 44 statements. [2025-02-06 18:43:07,239 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-02-06 18:43:07,239 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:43:07,400 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 156 trivial. 0 not checked. [2025-02-06 18:43:07,400 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:43:07,400 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2062471773] [2025-02-06 18:43:07,400 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2062471773] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:43:07,400 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 18:43:07,400 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2025-02-06 18:43:07,401 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [646424606] [2025-02-06 18:43:07,401 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:43:07,401 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-02-06 18:43:07,401 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:43:07,401 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-02-06 18:43:07,401 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2025-02-06 18:43:07,402 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 39 [2025-02-06 18:43:07,402 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 147 places, 156 transitions, 1542 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) [2025-02-06 18:43:07,402 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:43:07,402 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 39 [2025-02-06 18:43:07,402 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:43:07,807 INFO L124 PetriNetUnfolderBase]: 529/1489 cut-off events. [2025-02-06 18:43:07,807 INFO L125 PetriNetUnfolderBase]: For 6294/6366 co-relation queries the response was YES. [2025-02-06 18:43:07,813 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6399 conditions, 1489 events. 529/1489 cut-off events. For 6294/6366 co-relation queries the response was YES. Maximal size of possible extension queue 72. Compared 9555 event pairs, 73 based on Foata normal form. 22/1510 useless extension candidates. Maximal degree in co-relation 6223. Up to 351 conditions per place. [2025-02-06 18:43:07,819 INFO L140 encePairwiseOnDemand]: 27/39 looper letters, 201 selfloop transitions, 72 changer transitions 0/286 dead transitions. [2025-02-06 18:43:07,820 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 157 places, 286 transitions, 3132 flow [2025-02-06 18:43:07,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-02-06 18:43:07,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2025-02-06 18:43:07,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 292 transitions. [2025-02-06 18:43:07,821 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6806526806526807 [2025-02-06 18:43:07,821 INFO L175 Difference]: Start difference. First operand has 147 places, 156 transitions, 1542 flow. Second operand 11 states and 292 transitions. [2025-02-06 18:43:07,821 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 157 places, 286 transitions, 3132 flow [2025-02-06 18:43:07,838 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 153 places, 286 transitions, 3025 flow, removed 17 selfloop flow, removed 4 redundant places. [2025-02-06 18:43:07,841 INFO L231 Difference]: Finished difference. Result has 159 places, 184 transitions, 2068 flow [2025-02-06 18:43:07,841 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=39, PETRI_DIFFERENCE_MINUEND_FLOW=1475, PETRI_DIFFERENCE_MINUEND_PLACES=143, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=156, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=45, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=97, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=2068, PETRI_PLACES=159, PETRI_TRANSITIONS=184} [2025-02-06 18:43:07,842 INFO L279 CegarLoopForPetriNet]: 39 programPoint places, 120 predicate places. [2025-02-06 18:43:07,842 INFO L471 AbstractCegarLoop]: Abstraction has has 159 places, 184 transitions, 2068 flow [2025-02-06 18:43:07,843 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) [2025-02-06 18:43:07,843 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:43:07,843 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 18:43:07,843 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2025-02-06 18:43:07,843 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 12 more)] === [2025-02-06 18:43:07,843 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:43:07,843 INFO L85 PathProgramCache]: Analyzing trace with hash -1877277001, now seen corresponding path program 2 times [2025-02-06 18:43:07,844 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:43:07,844 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [463474985] [2025-02-06 18:43:07,844 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-06 18:43:07,844 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:43:07,851 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 44 statements into 2 equivalence classes. [2025-02-06 18:43:07,854 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 13 of 44 statements. [2025-02-06 18:43:07,854 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-06 18:43:07,854 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:43:07,914 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 156 trivial. 0 not checked. [2025-02-06 18:43:07,914 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:43:07,914 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [463474985] [2025-02-06 18:43:07,914 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [463474985] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:43:07,914 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 18:43:07,914 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-02-06 18:43:07,914 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [586715438] [2025-02-06 18:43:07,914 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:43:07,915 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-02-06 18:43:07,915 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:43:07,915 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-02-06 18:43:07,915 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2025-02-06 18:43:07,916 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 39 [2025-02-06 18:43:07,916 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 159 places, 184 transitions, 2068 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) [2025-02-06 18:43:07,916 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:43:07,916 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 39 [2025-02-06 18:43:07,916 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:43:08,265 INFO L124 PetriNetUnfolderBase]: 561/1585 cut-off events. [2025-02-06 18:43:08,265 INFO L125 PetriNetUnfolderBase]: For 9032/9119 co-relation queries the response was YES. [2025-02-06 18:43:08,271 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7293 conditions, 1585 events. 561/1585 cut-off events. For 9032/9119 co-relation queries the response was YES. Maximal size of possible extension queue 85. Compared 10330 event pairs, 157 based on Foata normal form. 20/1603 useless extension candidates. Maximal degree in co-relation 7113. Up to 453 conditions per place. [2025-02-06 18:43:08,280 INFO L140 encePairwiseOnDemand]: 27/39 looper letters, 213 selfloop transitions, 50 changer transitions 0/276 dead transitions. [2025-02-06 18:43:08,282 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 165 places, 276 transitions, 3404 flow [2025-02-06 18:43:08,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-02-06 18:43:08,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2025-02-06 18:43:08,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 192 transitions. [2025-02-06 18:43:08,283 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7032967032967034 [2025-02-06 18:43:08,283 INFO L175 Difference]: Start difference. First operand has 159 places, 184 transitions, 2068 flow. Second operand 7 states and 192 transitions. [2025-02-06 18:43:08,283 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 165 places, 276 transitions, 3404 flow [2025-02-06 18:43:08,305 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 163 places, 276 transitions, 3329 flow, removed 20 selfloop flow, removed 2 redundant places. [2025-02-06 18:43:08,309 INFO L231 Difference]: Finished difference. Result has 168 places, 207 transitions, 2539 flow [2025-02-06 18:43:08,309 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=39, PETRI_DIFFERENCE_MINUEND_FLOW=1996, PETRI_DIFFERENCE_MINUEND_PLACES=157, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=184, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=28, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=139, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=2539, PETRI_PLACES=168, PETRI_TRANSITIONS=207} [2025-02-06 18:43:08,309 INFO L279 CegarLoopForPetriNet]: 39 programPoint places, 129 predicate places. [2025-02-06 18:43:08,309 INFO L471 AbstractCegarLoop]: Abstraction has has 168 places, 207 transitions, 2539 flow [2025-02-06 18:43:08,309 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) [2025-02-06 18:43:08,310 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:43:08,310 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 18:43:08,310 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2025-02-06 18:43:08,310 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 12 more)] === [2025-02-06 18:43:08,310 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:43:08,310 INFO L85 PathProgramCache]: Analyzing trace with hash 486789415, now seen corresponding path program 5 times [2025-02-06 18:43:08,310 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:43:08,311 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [338786726] [2025-02-06 18:43:08,311 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-02-06 18:43:08,311 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:43:08,318 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 44 statements into 11 equivalence classes. [2025-02-06 18:43:08,329 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) and asserted 44 of 44 statements. [2025-02-06 18:43:08,332 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) [2025-02-06 18:43:08,332 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:43:08,797 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 11 proven. 10 refuted. 0 times theorem prover too weak. 135 trivial. 0 not checked. [2025-02-06 18:43:08,798 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:43:08,798 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [338786726] [2025-02-06 18:43:08,798 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [338786726] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 18:43:08,798 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1069715829] [2025-02-06 18:43:08,798 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-02-06 18:43:08,798 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 18:43:08,798 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 18:43:08,800 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 18:43:08,801 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2025-02-06 18:43:08,851 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 44 statements into 11 equivalence classes. [2025-02-06 18:43:08,903 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) and asserted 44 of 44 statements. [2025-02-06 18:43:08,904 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) [2025-02-06 18:43:08,904 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:43:08,906 INFO L256 TraceCheckSpWp]: Trace formula consists of 317 conjuncts, 32 conjuncts are in the unsatisfiable core [2025-02-06 18:43:08,908 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 18:43:09,215 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 36 treesize of output 13 [2025-02-06 18:43:09,239 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 15 treesize of output 7 [2025-02-06 18:43:09,249 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2025-02-06 18:43:09,249 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 18:43:09,250 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1069715829] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:43:09,250 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-06 18:43:09,250 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [9] total 17 [2025-02-06 18:43:09,250 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1658255040] [2025-02-06 18:43:09,250 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:43:09,250 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-02-06 18:43:09,250 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:43:09,250 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-02-06 18:43:09,251 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=252, Unknown=0, NotChecked=0, Total=306 [2025-02-06 18:43:09,267 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 39 [2025-02-06 18:43:09,267 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 168 places, 207 transitions, 2539 flow. Second operand has 10 states, 10 states have (on average 14.5) internal successors, (145), 10 states have internal predecessors, (145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 18:43:09,268 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:43:09,268 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 39 [2025-02-06 18:43:09,268 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:43:09,972 INFO L124 PetriNetUnfolderBase]: 990/2414 cut-off events. [2025-02-06 18:43:09,972 INFO L125 PetriNetUnfolderBase]: For 15929/15941 co-relation queries the response was YES. [2025-02-06 18:43:09,982 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11525 conditions, 2414 events. 990/2414 cut-off events. For 15929/15941 co-relation queries the response was YES. Maximal size of possible extension queue 105. Compared 16309 event pairs, 278 based on Foata normal form. 33/2447 useless extension candidates. Maximal degree in co-relation 11340. Up to 1343 conditions per place. [2025-02-06 18:43:09,995 INFO L140 encePairwiseOnDemand]: 24/39 looper letters, 305 selfloop transitions, 73 changer transitions 0/388 dead transitions. [2025-02-06 18:43:09,995 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 183 places, 388 transitions, 5155 flow [2025-02-06 18:43:09,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2025-02-06 18:43:09,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2025-02-06 18:43:09,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 355 transitions. [2025-02-06 18:43:09,996 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5689102564102564 [2025-02-06 18:43:09,996 INFO L175 Difference]: Start difference. First operand has 168 places, 207 transitions, 2539 flow. Second operand 16 states and 355 transitions. [2025-02-06 18:43:09,996 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 183 places, 388 transitions, 5155 flow [2025-02-06 18:43:10,037 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 183 places, 388 transitions, 5057 flow, removed 49 selfloop flow, removed 0 redundant places. [2025-02-06 18:43:10,042 INFO L231 Difference]: Finished difference. Result has 196 places, 261 transitions, 3306 flow [2025-02-06 18:43:10,042 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=39, PETRI_DIFFERENCE_MINUEND_FLOW=2473, PETRI_DIFFERENCE_MINUEND_PLACES=168, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=207, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=28, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=167, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=3306, PETRI_PLACES=196, PETRI_TRANSITIONS=261} [2025-02-06 18:43:10,043 INFO L279 CegarLoopForPetriNet]: 39 programPoint places, 157 predicate places. [2025-02-06 18:43:10,043 INFO L471 AbstractCegarLoop]: Abstraction has has 196 places, 261 transitions, 3306 flow [2025-02-06 18:43:10,043 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 14.5) internal successors, (145), 10 states have internal predecessors, (145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 18:43:10,043 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:43:10,043 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 18:43:10,050 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2025-02-06 18:43:10,244 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2025-02-06 18:43:10,244 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 12 more)] === [2025-02-06 18:43:10,245 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:43:10,245 INFO L85 PathProgramCache]: Analyzing trace with hash 1804758933, now seen corresponding path program 3 times [2025-02-06 18:43:10,245 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:43:10,245 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [642197653] [2025-02-06 18:43:10,245 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-02-06 18:43:10,245 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:43:10,252 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 44 statements into 11 equivalence classes. [2025-02-06 18:43:10,254 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) and asserted 13 of 44 statements. [2025-02-06 18:43:10,254 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2025-02-06 18:43:10,254 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:43:10,321 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 156 trivial. 0 not checked. [2025-02-06 18:43:10,322 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:43:10,322 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [642197653] [2025-02-06 18:43:10,322 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [642197653] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:43:10,322 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 18:43:10,322 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-02-06 18:43:10,322 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1422262400] [2025-02-06 18:43:10,322 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:43:10,323 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-02-06 18:43:10,323 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:43:10,323 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-02-06 18:43:10,323 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2025-02-06 18:43:10,323 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 39 [2025-02-06 18:43:10,324 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 196 places, 261 transitions, 3306 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) [2025-02-06 18:43:10,324 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:43:10,324 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 39 [2025-02-06 18:43:10,324 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:43:10,730 INFO L124 PetriNetUnfolderBase]: 699/1929 cut-off events. [2025-02-06 18:43:10,731 INFO L125 PetriNetUnfolderBase]: For 16052/16234 co-relation queries the response was YES. [2025-02-06 18:43:10,741 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10102 conditions, 1929 events. 699/1929 cut-off events. For 16052/16234 co-relation queries the response was YES. Maximal size of possible extension queue 87. Compared 13242 event pairs, 193 based on Foata normal form. 40/1967 useless extension candidates. Maximal degree in co-relation 9902. Up to 680 conditions per place. [2025-02-06 18:43:10,748 INFO L140 encePairwiseOnDemand]: 27/39 looper letters, 223 selfloop transitions, 76 changer transitions 0/314 dead transitions. [2025-02-06 18:43:10,748 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 202 places, 314 transitions, 4373 flow [2025-02-06 18:43:10,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-02-06 18:43:10,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2025-02-06 18:43:10,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 184 transitions. [2025-02-06 18:43:10,749 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.673992673992674 [2025-02-06 18:43:10,749 INFO L175 Difference]: Start difference. First operand has 196 places, 261 transitions, 3306 flow. Second operand 7 states and 184 transitions. [2025-02-06 18:43:10,749 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 202 places, 314 transitions, 4373 flow [2025-02-06 18:43:10,794 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 201 places, 314 transitions, 4299 flow, removed 28 selfloop flow, removed 1 redundant places. [2025-02-06 18:43:10,799 INFO L231 Difference]: Finished difference. Result has 204 places, 267 transitions, 3539 flow [2025-02-06 18:43:10,799 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=39, PETRI_DIFFERENCE_MINUEND_FLOW=3204, PETRI_DIFFERENCE_MINUEND_PLACES=195, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=258, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=67, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=184, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=3539, PETRI_PLACES=204, PETRI_TRANSITIONS=267} [2025-02-06 18:43:10,799 INFO L279 CegarLoopForPetriNet]: 39 programPoint places, 165 predicate places. [2025-02-06 18:43:10,799 INFO L471 AbstractCegarLoop]: Abstraction has has 204 places, 267 transitions, 3539 flow [2025-02-06 18:43:10,800 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) [2025-02-06 18:43:10,800 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:43:10,800 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 18:43:10,800 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2025-02-06 18:43:10,800 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 12 more)] === [2025-02-06 18:43:10,800 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:43:10,800 INFO L85 PathProgramCache]: Analyzing trace with hash 1014249127, now seen corresponding path program 6 times [2025-02-06 18:43:10,801 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:43:10,801 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1107620591] [2025-02-06 18:43:10,801 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-02-06 18:43:10,801 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:43:10,809 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 44 statements into 11 equivalence classes. [2025-02-06 18:43:10,811 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) and asserted 13 of 44 statements. [2025-02-06 18:43:10,811 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2025-02-06 18:43:10,811 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:43:10,883 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 156 trivial. 0 not checked. [2025-02-06 18:43:10,883 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:43:10,884 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1107620591] [2025-02-06 18:43:10,884 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1107620591] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:43:10,884 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 18:43:10,884 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2025-02-06 18:43:10,884 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [3051746] [2025-02-06 18:43:10,884 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:43:10,884 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-02-06 18:43:10,884 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:43:10,884 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-02-06 18:43:10,884 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2025-02-06 18:43:10,884 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 39 [2025-02-06 18:43:10,885 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 204 places, 267 transitions, 3539 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) [2025-02-06 18:43:10,885 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:43:10,885 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 39 [2025-02-06 18:43:10,885 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:43:11,466 INFO L124 PetriNetUnfolderBase]: 699/1912 cut-off events. [2025-02-06 18:43:11,466 INFO L125 PetriNetUnfolderBase]: For 17606/17820 co-relation queries the response was YES. [2025-02-06 18:43:11,477 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10205 conditions, 1912 events. 699/1912 cut-off events. For 17606/17820 co-relation queries the response was YES. Maximal size of possible extension queue 90. Compared 13131 event pairs, 104 based on Foata normal form. 55/1964 useless extension candidates. Maximal degree in co-relation 10002. Up to 496 conditions per place. [2025-02-06 18:43:11,484 INFO L140 encePairwiseOnDemand]: 28/39 looper letters, 264 selfloop transitions, 96 changer transitions 0/375 dead transitions. [2025-02-06 18:43:11,484 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 215 places, 375 transitions, 5172 flow [2025-02-06 18:43:11,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-02-06 18:43:11,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2025-02-06 18:43:11,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 307 transitions. [2025-02-06 18:43:11,485 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.655982905982906 [2025-02-06 18:43:11,485 INFO L175 Difference]: Start difference. First operand has 204 places, 267 transitions, 3539 flow. Second operand 12 states and 307 transitions. [2025-02-06 18:43:11,485 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 215 places, 375 transitions, 5172 flow [2025-02-06 18:43:11,533 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 212 places, 375 transitions, 5027 flow, removed 9 selfloop flow, removed 3 redundant places. [2025-02-06 18:43:11,537 INFO L231 Difference]: Finished difference. Result has 216 places, 279 transitions, 3887 flow [2025-02-06 18:43:11,538 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=39, PETRI_DIFFERENCE_MINUEND_FLOW=3410, PETRI_DIFFERENCE_MINUEND_PLACES=201, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=267, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=85, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=174, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=3887, PETRI_PLACES=216, PETRI_TRANSITIONS=279} [2025-02-06 18:43:11,538 INFO L279 CegarLoopForPetriNet]: 39 programPoint places, 177 predicate places. [2025-02-06 18:43:11,538 INFO L471 AbstractCegarLoop]: Abstraction has has 216 places, 279 transitions, 3887 flow [2025-02-06 18:43:11,538 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) [2025-02-06 18:43:11,538 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:43:11,538 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 18:43:11,538 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2025-02-06 18:43:11,539 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 12 more)] === [2025-02-06 18:43:11,539 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:43:11,539 INFO L85 PathProgramCache]: Analyzing trace with hash 554579059, now seen corresponding path program 7 times [2025-02-06 18:43:11,539 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:43:11,539 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1699362163] [2025-02-06 18:43:11,540 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2025-02-06 18:43:11,540 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:43:11,550 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 44 statements into 1 equivalence classes. [2025-02-06 18:43:11,555 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 44 of 44 statements. [2025-02-06 18:43:11,556 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:43:11,556 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:43:11,789 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2025-02-06 18:43:11,789 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:43:11,789 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1699362163] [2025-02-06 18:43:11,789 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1699362163] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:43:11,789 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 18:43:11,789 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2025-02-06 18:43:11,790 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [358180953] [2025-02-06 18:43:11,790 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:43:11,790 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-02-06 18:43:11,790 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:43:11,790 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-02-06 18:43:11,790 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2025-02-06 18:43:11,790 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 39 [2025-02-06 18:43:11,791 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 216 places, 279 transitions, 3887 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) [2025-02-06 18:43:11,791 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:43:11,791 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 39 [2025-02-06 18:43:11,791 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:43:12,251 INFO L124 PetriNetUnfolderBase]: 684/1878 cut-off events. [2025-02-06 18:43:12,251 INFO L125 PetriNetUnfolderBase]: For 18411/18609 co-relation queries the response was YES. [2025-02-06 18:43:12,260 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10259 conditions, 1878 events. 684/1878 cut-off events. For 18411/18609 co-relation queries the response was YES. Maximal size of possible extension queue 86. Compared 12800 event pairs, 78 based on Foata normal form. 63/1939 useless extension candidates. Maximal degree in co-relation 10052. Up to 429 conditions per place. [2025-02-06 18:43:12,265 INFO L140 encePairwiseOnDemand]: 27/39 looper letters, 248 selfloop transitions, 112 changer transitions 0/375 dead transitions. [2025-02-06 18:43:12,265 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 228 places, 375 transitions, 5357 flow [2025-02-06 18:43:12,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-02-06 18:43:12,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2025-02-06 18:43:12,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 319 transitions. [2025-02-06 18:43:12,266 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6291913214990138 [2025-02-06 18:43:12,266 INFO L175 Difference]: Start difference. First operand has 216 places, 279 transitions, 3887 flow. Second operand 13 states and 319 transitions. [2025-02-06 18:43:12,266 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 228 places, 375 transitions, 5357 flow [2025-02-06 18:43:12,314 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 224 places, 375 transitions, 5208 flow, removed 39 selfloop flow, removed 4 redundant places. [2025-02-06 18:43:12,318 INFO L231 Difference]: Finished difference. Result has 228 places, 288 transitions, 4230 flow [2025-02-06 18:43:12,318 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=39, PETRI_DIFFERENCE_MINUEND_FLOW=3716, PETRI_DIFFERENCE_MINUEND_PLACES=212, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=277, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=102, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=168, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=4230, PETRI_PLACES=228, PETRI_TRANSITIONS=288} [2025-02-06 18:43:12,318 INFO L279 CegarLoopForPetriNet]: 39 programPoint places, 189 predicate places. [2025-02-06 18:43:12,318 INFO L471 AbstractCegarLoop]: Abstraction has has 228 places, 288 transitions, 4230 flow [2025-02-06 18:43:12,319 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) [2025-02-06 18:43:12,319 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:43:12,319 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 18:43:12,319 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2025-02-06 18:43:12,319 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 12 more)] === [2025-02-06 18:43:12,319 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:43:12,319 INFO L85 PathProgramCache]: Analyzing trace with hash 920729425, now seen corresponding path program 4 times [2025-02-06 18:43:12,319 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:43:12,319 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1290519348] [2025-02-06 18:43:12,319 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-02-06 18:43:12,319 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:43:12,328 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 44 statements into 2 equivalence classes. [2025-02-06 18:43:12,333 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 44 of 44 statements. [2025-02-06 18:43:12,333 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-02-06 18:43:12,333 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:43:12,443 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 156 trivial. 0 not checked. [2025-02-06 18:43:12,443 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:43:12,443 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1290519348] [2025-02-06 18:43:12,443 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1290519348] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:43:12,443 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 18:43:12,443 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-02-06 18:43:12,443 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [459394040] [2025-02-06 18:43:12,443 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:43:12,444 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-02-06 18:43:12,444 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:43:12,444 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-02-06 18:43:12,444 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2025-02-06 18:43:12,444 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 39 [2025-02-06 18:43:12,444 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 228 places, 288 transitions, 4230 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) [2025-02-06 18:43:12,444 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:43:12,445 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 39 [2025-02-06 18:43:12,445 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:43:12,860 INFO L124 PetriNetUnfolderBase]: 602/1695 cut-off events. [2025-02-06 18:43:12,861 INFO L125 PetriNetUnfolderBase]: For 17839/18008 co-relation queries the response was YES. [2025-02-06 18:43:12,870 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9409 conditions, 1695 events. 602/1695 cut-off events. For 17839/18008 co-relation queries the response was YES. Maximal size of possible extension queue 74. Compared 11232 event pairs, 181 based on Foata normal form. 41/1735 useless extension candidates. Maximal degree in co-relation 9198. Up to 543 conditions per place. [2025-02-06 18:43:12,876 INFO L140 encePairwiseOnDemand]: 27/39 looper letters, 229 selfloop transitions, 69 changer transitions 0/313 dead transitions. [2025-02-06 18:43:12,876 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 233 places, 313 transitions, 4943 flow [2025-02-06 18:43:12,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-02-06 18:43:12,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2025-02-06 18:43:12,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 189 transitions. [2025-02-06 18:43:12,877 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6923076923076923 [2025-02-06 18:43:12,877 INFO L175 Difference]: Start difference. First operand has 228 places, 288 transitions, 4230 flow. Second operand 7 states and 189 transitions. [2025-02-06 18:43:12,877 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 233 places, 313 transitions, 4943 flow [2025-02-06 18:43:12,932 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 228 places, 313 transitions, 4761 flow, removed 38 selfloop flow, removed 5 redundant places. [2025-02-06 18:43:12,935 INFO L231 Difference]: Finished difference. Result has 231 places, 282 transitions, 4176 flow [2025-02-06 18:43:12,936 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=39, PETRI_DIFFERENCE_MINUEND_FLOW=3884, PETRI_DIFFERENCE_MINUEND_PLACES=222, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=276, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=64, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=209, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=4176, PETRI_PLACES=231, PETRI_TRANSITIONS=282} [2025-02-06 18:43:12,936 INFO L279 CegarLoopForPetriNet]: 39 programPoint places, 192 predicate places. [2025-02-06 18:43:12,936 INFO L471 AbstractCegarLoop]: Abstraction has has 231 places, 282 transitions, 4176 flow [2025-02-06 18:43:12,936 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) [2025-02-06 18:43:12,936 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:43:12,937 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 18:43:12,937 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2025-02-06 18:43:12,937 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 12 more)] === [2025-02-06 18:43:12,937 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:43:12,937 INFO L85 PathProgramCache]: Analyzing trace with hash -336160275, now seen corresponding path program 5 times [2025-02-06 18:43:12,937 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:43:12,937 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [505497370] [2025-02-06 18:43:12,938 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-02-06 18:43:12,938 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:43:12,944 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 44 statements into 11 equivalence classes. [2025-02-06 18:43:12,951 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) and asserted 44 of 44 statements. [2025-02-06 18:43:12,952 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) [2025-02-06 18:43:12,952 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:43:13,257 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 11 proven. 10 refuted. 0 times theorem prover too weak. 135 trivial. 0 not checked. [2025-02-06 18:43:13,258 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:43:13,258 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [505497370] [2025-02-06 18:43:13,258 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [505497370] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 18:43:13,258 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1919073075] [2025-02-06 18:43:13,258 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-02-06 18:43:13,258 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 18:43:13,258 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 18:43:13,260 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 18:43:13,262 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2025-02-06 18:43:13,311 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 44 statements into 11 equivalence classes. [2025-02-06 18:43:13,364 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) and asserted 44 of 44 statements. [2025-02-06 18:43:13,364 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) [2025-02-06 18:43:13,364 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:43:13,365 INFO L256 TraceCheckSpWp]: Trace formula consists of 317 conjuncts, 26 conjuncts are in the unsatisfiable core [2025-02-06 18:43:13,368 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 18:43:13,460 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 [2025-02-06 18:43:13,474 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2025-02-06 18:43:13,474 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 18:43:13,474 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1919073075] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:43:13,474 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-06 18:43:13,474 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [8] total 14 [2025-02-06 18:43:13,474 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1016037265] [2025-02-06 18:43:13,474 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:43:13,475 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-02-06 18:43:13,475 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:43:13,475 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-02-06 18:43:13,476 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2025-02-06 18:43:13,476 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 39 [2025-02-06 18:43:13,476 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 231 places, 282 transitions, 4176 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) [2025-02-06 18:43:13,476 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:43:13,476 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 39 [2025-02-06 18:43:13,476 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:43:13,947 INFO L124 PetriNetUnfolderBase]: 600/1731 cut-off events. [2025-02-06 18:43:13,948 INFO L125 PetriNetUnfolderBase]: For 16662/16836 co-relation queries the response was YES. [2025-02-06 18:43:13,956 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9303 conditions, 1731 events. 600/1731 cut-off events. For 16662/16836 co-relation queries the response was YES. Maximal size of possible extension queue 76. Compared 11726 event pairs, 165 based on Foata normal form. 47/1777 useless extension candidates. Maximal degree in co-relation 9090. Up to 614 conditions per place. [2025-02-06 18:43:13,962 INFO L140 encePairwiseOnDemand]: 26/39 looper letters, 270 selfloop transitions, 60 changer transitions 0/345 dead transitions. [2025-02-06 18:43:13,962 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 240 places, 345 transitions, 5316 flow [2025-02-06 18:43:13,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-02-06 18:43:13,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2025-02-06 18:43:13,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 255 transitions. [2025-02-06 18:43:13,963 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6538461538461539 [2025-02-06 18:43:13,963 INFO L175 Difference]: Start difference. First operand has 231 places, 282 transitions, 4176 flow. Second operand 10 states and 255 transitions. [2025-02-06 18:43:13,963 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 240 places, 345 transitions, 5316 flow [2025-02-06 18:43:14,008 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 238 places, 345 transitions, 5242 flow, removed 12 selfloop flow, removed 2 redundant places. [2025-02-06 18:43:14,012 INFO L231 Difference]: Finished difference. Result has 243 places, 290 transitions, 4406 flow [2025-02-06 18:43:14,013 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=39, PETRI_DIFFERENCE_MINUEND_FLOW=4031, PETRI_DIFFERENCE_MINUEND_PLACES=229, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=278, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=49, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=221, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=4406, PETRI_PLACES=243, PETRI_TRANSITIONS=290} [2025-02-06 18:43:14,013 INFO L279 CegarLoopForPetriNet]: 39 programPoint places, 204 predicate places. [2025-02-06 18:43:14,013 INFO L471 AbstractCegarLoop]: Abstraction has has 243 places, 290 transitions, 4406 flow [2025-02-06 18:43:14,013 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) [2025-02-06 18:43:14,013 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:43:14,014 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 18:43:14,019 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2025-02-06 18:43:14,214 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2025-02-06 18:43:14,214 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 12 more)] === [2025-02-06 18:43:14,215 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:43:14,215 INFO L85 PathProgramCache]: Analyzing trace with hash 597574653, now seen corresponding path program 8 times [2025-02-06 18:43:14,215 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:43:14,215 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1540612112] [2025-02-06 18:43:14,215 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-06 18:43:14,215 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:43:14,222 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 44 statements into 2 equivalence classes. [2025-02-06 18:43:14,226 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 13 of 44 statements. [2025-02-06 18:43:14,226 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-06 18:43:14,226 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:43:14,280 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 156 trivial. 0 not checked. [2025-02-06 18:43:14,281 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:43:14,281 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1540612112] [2025-02-06 18:43:14,281 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1540612112] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:43:14,281 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 18:43:14,281 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-02-06 18:43:14,281 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [884614218] [2025-02-06 18:43:14,281 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:43:14,282 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-02-06 18:43:14,283 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:43:14,283 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-02-06 18:43:14,283 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2025-02-06 18:43:14,283 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 39 [2025-02-06 18:43:14,284 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 243 places, 290 transitions, 4406 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) [2025-02-06 18:43:14,284 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:43:14,284 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 39 [2025-02-06 18:43:14,284 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:43:14,677 INFO L124 PetriNetUnfolderBase]: 552/1586 cut-off events. [2025-02-06 18:43:14,678 INFO L125 PetriNetUnfolderBase]: For 16182/16369 co-relation queries the response was YES. [2025-02-06 18:43:14,686 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8735 conditions, 1586 events. 552/1586 cut-off events. For 16182/16369 co-relation queries the response was YES. Maximal size of possible extension queue 62. Compared 10408 event pairs, 184 based on Foata normal form. 42/1627 useless extension candidates. Maximal degree in co-relation 8516. Up to 617 conditions per place. [2025-02-06 18:43:14,692 INFO L140 encePairwiseOnDemand]: 29/39 looper letters, 225 selfloop transitions, 66 changer transitions 0/306 dead transitions. [2025-02-06 18:43:14,692 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 246 places, 306 transitions, 5032 flow [2025-02-06 18:43:14,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-02-06 18:43:14,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2025-02-06 18:43:14,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 179 transitions. [2025-02-06 18:43:14,693 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6556776556776557 [2025-02-06 18:43:14,693 INFO L175 Difference]: Start difference. First operand has 243 places, 290 transitions, 4406 flow. Second operand 7 states and 179 transitions. [2025-02-06 18:43:14,693 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 246 places, 306 transitions, 5032 flow [2025-02-06 18:43:14,746 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 241 places, 306 transitions, 4895 flow, removed 39 selfloop flow, removed 5 redundant places. [2025-02-06 18:43:14,750 INFO L231 Difference]: Finished difference. Result has 241 places, 282 transitions, 4309 flow [2025-02-06 18:43:14,750 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=39, PETRI_DIFFERENCE_MINUEND_FLOW=4177, PETRI_DIFFERENCE_MINUEND_PLACES=235, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=282, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=66, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=216, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=4309, PETRI_PLACES=241, PETRI_TRANSITIONS=282} [2025-02-06 18:43:14,751 INFO L279 CegarLoopForPetriNet]: 39 programPoint places, 202 predicate places. [2025-02-06 18:43:14,751 INFO L471 AbstractCegarLoop]: Abstraction has has 241 places, 282 transitions, 4309 flow [2025-02-06 18:43:14,751 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) [2025-02-06 18:43:14,751 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:43:14,751 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 18:43:14,751 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2025-02-06 18:43:14,751 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 12 more)] === [2025-02-06 18:43:14,752 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:43:14,752 INFO L85 PathProgramCache]: Analyzing trace with hash 428491537, now seen corresponding path program 1 times [2025-02-06 18:43:14,752 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:43:14,752 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [912388822] [2025-02-06 18:43:14,752 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:43:14,752 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:43:14,758 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 45 statements into 1 equivalence classes. [2025-02-06 18:43:14,766 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 45 of 45 statements. [2025-02-06 18:43:14,766 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:43:14,766 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:43:15,008 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2025-02-06 18:43:15,008 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:43:15,008 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [912388822] [2025-02-06 18:43:15,008 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [912388822] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:43:15,008 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 18:43:15,008 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2025-02-06 18:43:15,009 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1609278129] [2025-02-06 18:43:15,009 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:43:15,009 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2025-02-06 18:43:15,009 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:43:15,009 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2025-02-06 18:43:15,009 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2025-02-06 18:43:15,043 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 39 [2025-02-06 18:43:15,043 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 241 places, 282 transitions, 4309 flow. Second operand has 11 states, 11 states have (on average 13.454545454545455) internal successors, (148), 11 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 18:43:15,043 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:43:15,043 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 39 [2025-02-06 18:43:15,043 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:43:15,601 INFO L124 PetriNetUnfolderBase]: 931/2264 cut-off events. [2025-02-06 18:43:15,601 INFO L125 PetriNetUnfolderBase]: For 21320/21345 co-relation queries the response was YES. [2025-02-06 18:43:15,613 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11936 conditions, 2264 events. 931/2264 cut-off events. For 21320/21345 co-relation queries the response was YES. Maximal size of possible extension queue 84. Compared 14983 event pairs, 342 based on Foata normal form. 30/2294 useless extension candidates. Maximal degree in co-relation 11720. Up to 1457 conditions per place. [2025-02-06 18:43:15,621 INFO L140 encePairwiseOnDemand]: 26/39 looper letters, 332 selfloop transitions, 53 changer transitions 0/394 dead transitions. [2025-02-06 18:43:15,621 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 253 places, 394 transitions, 6547 flow [2025-02-06 18:43:15,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-02-06 18:43:15,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2025-02-06 18:43:15,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 257 transitions. [2025-02-06 18:43:15,622 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5069033530571992 [2025-02-06 18:43:15,622 INFO L175 Difference]: Start difference. First operand has 241 places, 282 transitions, 4309 flow. Second operand 13 states and 257 transitions. [2025-02-06 18:43:15,623 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 253 places, 394 transitions, 6547 flow [2025-02-06 18:43:15,692 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 250 places, 394 transitions, 6420 flow, removed 8 selfloop flow, removed 3 redundant places. [2025-02-06 18:43:15,698 INFO L231 Difference]: Finished difference. Result has 258 places, 303 transitions, 4654 flow [2025-02-06 18:43:15,699 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=39, PETRI_DIFFERENCE_MINUEND_FLOW=4209, PETRI_DIFFERENCE_MINUEND_PLACES=238, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=282, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=35, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=237, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=4654, PETRI_PLACES=258, PETRI_TRANSITIONS=303} [2025-02-06 18:43:15,699 INFO L279 CegarLoopForPetriNet]: 39 programPoint places, 219 predicate places. [2025-02-06 18:43:15,699 INFO L471 AbstractCegarLoop]: Abstraction has has 258 places, 303 transitions, 4654 flow [2025-02-06 18:43:15,700 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 13.454545454545455) internal successors, (148), 11 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 18:43:15,700 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:43:15,700 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 18:43:15,700 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2025-02-06 18:43:15,700 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 12 more)] === [2025-02-06 18:43:15,701 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:43:15,701 INFO L85 PathProgramCache]: Analyzing trace with hash -455002031, now seen corresponding path program 2 times [2025-02-06 18:43:15,701 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:43:15,701 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1993667196] [2025-02-06 18:43:15,701 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-06 18:43:15,701 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:43:15,708 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 45 statements into 2 equivalence classes. [2025-02-06 18:43:15,710 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 14 of 45 statements. [2025-02-06 18:43:15,710 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-06 18:43:15,710 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:43:15,806 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 156 trivial. 0 not checked. [2025-02-06 18:43:15,806 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:43:15,807 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1993667196] [2025-02-06 18:43:15,807 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1993667196] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:43:15,807 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 18:43:15,807 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2025-02-06 18:43:15,807 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1526229845] [2025-02-06 18:43:15,807 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:43:15,807 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-02-06 18:43:15,807 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:43:15,807 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-02-06 18:43:15,808 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2025-02-06 18:43:15,829 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 39 [2025-02-06 18:43:15,830 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 258 places, 303 transitions, 4654 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) [2025-02-06 18:43:15,830 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:43:15,830 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 39 [2025-02-06 18:43:15,830 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:43:16,616 INFO L124 PetriNetUnfolderBase]: 1224/2814 cut-off events. [2025-02-06 18:43:16,616 INFO L125 PetriNetUnfolderBase]: For 30042/30087 co-relation queries the response was YES. [2025-02-06 18:43:16,628 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15768 conditions, 2814 events. 1224/2814 cut-off events. For 30042/30087 co-relation queries the response was YES. Maximal size of possible extension queue 105. Compared 18849 event pairs, 361 based on Foata normal form. 36/2850 useless extension candidates. Maximal degree in co-relation 15543. Up to 1125 conditions per place. [2025-02-06 18:43:16,636 INFO L140 encePairwiseOnDemand]: 25/39 looper letters, 309 selfloop transitions, 163 changer transitions 0/480 dead transitions. [2025-02-06 18:43:16,637 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 274 places, 480 transitions, 7422 flow [2025-02-06 18:43:16,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2025-02-06 18:43:16,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2025-02-06 18:43:16,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 345 transitions. [2025-02-06 18:43:16,638 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5203619909502263 [2025-02-06 18:43:16,638 INFO L175 Difference]: Start difference. First operand has 258 places, 303 transitions, 4654 flow. Second operand 17 states and 345 transitions. [2025-02-06 18:43:16,638 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 274 places, 480 transitions, 7422 flow [2025-02-06 18:43:16,728 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 271 places, 480 transitions, 7339 flow, removed 16 selfloop flow, removed 3 redundant places. [2025-02-06 18:43:16,734 INFO L231 Difference]: Finished difference. Result has 283 places, 378 transitions, 6286 flow [2025-02-06 18:43:16,735 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=39, PETRI_DIFFERENCE_MINUEND_FLOW=4598, PETRI_DIFFERENCE_MINUEND_PLACES=255, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=303, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=88, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=191, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=6286, PETRI_PLACES=283, PETRI_TRANSITIONS=378} [2025-02-06 18:43:16,735 INFO L279 CegarLoopForPetriNet]: 39 programPoint places, 244 predicate places. [2025-02-06 18:43:16,735 INFO L471 AbstractCegarLoop]: Abstraction has has 283 places, 378 transitions, 6286 flow [2025-02-06 18:43:16,735 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) [2025-02-06 18:43:16,735 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:43:16,735 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 18:43:16,735 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2025-02-06 18:43:16,736 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 12 more)] === [2025-02-06 18:43:16,736 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:43:16,736 INFO L85 PathProgramCache]: Analyzing trace with hash -1947777299, now seen corresponding path program 1 times [2025-02-06 18:43:16,736 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:43:16,736 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [804780937] [2025-02-06 18:43:16,736 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:43:16,737 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:43:16,742 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 45 statements into 1 equivalence classes. [2025-02-06 18:43:16,747 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 45 of 45 statements. [2025-02-06 18:43:16,748 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:43:16,748 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:43:16,948 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2025-02-06 18:43:16,949 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:43:16,949 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [804780937] [2025-02-06 18:43:16,949 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [804780937] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:43:16,949 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 18:43:16,949 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2025-02-06 18:43:16,949 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1556091499] [2025-02-06 18:43:16,949 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:43:16,949 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2025-02-06 18:43:16,950 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:43:16,950 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2025-02-06 18:43:16,950 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2025-02-06 18:43:16,965 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 39 [2025-02-06 18:43:16,966 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 283 places, 378 transitions, 6286 flow. Second operand has 11 states, 11 states have (on average 12.545454545454545) internal successors, (138), 11 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 18:43:16,966 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:43:16,966 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 39 [2025-02-06 18:43:16,966 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:43:17,870 INFO L124 PetriNetUnfolderBase]: 1392/3145 cut-off events. [2025-02-06 18:43:17,871 INFO L125 PetriNetUnfolderBase]: For 46272/46330 co-relation queries the response was YES. [2025-02-06 18:43:17,886 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19828 conditions, 3145 events. 1392/3145 cut-off events. For 46272/46330 co-relation queries the response was YES. Maximal size of possible extension queue 114. Compared 21452 event pairs, 533 based on Foata normal form. 45/3188 useless extension candidates. Maximal degree in co-relation 19591. Up to 1555 conditions per place. [2025-02-06 18:43:17,894 INFO L140 encePairwiseOnDemand]: 24/39 looper letters, 409 selfloop transitions, 124 changer transitions 0/542 dead transitions. [2025-02-06 18:43:17,894 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 300 places, 542 transitions, 9424 flow [2025-02-06 18:43:17,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2025-02-06 18:43:17,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2025-02-06 18:43:17,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 352 transitions. [2025-02-06 18:43:17,895 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5014245014245015 [2025-02-06 18:43:17,895 INFO L175 Difference]: Start difference. First operand has 283 places, 378 transitions, 6286 flow. Second operand 18 states and 352 transitions. [2025-02-06 18:43:17,895 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 300 places, 542 transitions, 9424 flow [2025-02-06 18:43:18,039 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 299 places, 542 transitions, 9314 flow, removed 43 selfloop flow, removed 1 redundant places. [2025-02-06 18:43:18,045 INFO L231 Difference]: Finished difference. Result has 311 places, 419 transitions, 7368 flow [2025-02-06 18:43:18,045 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=39, PETRI_DIFFERENCE_MINUEND_FLOW=6198, PETRI_DIFFERENCE_MINUEND_PLACES=282, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=378, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=83, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=280, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=7368, PETRI_PLACES=311, PETRI_TRANSITIONS=419} [2025-02-06 18:43:18,046 INFO L279 CegarLoopForPetriNet]: 39 programPoint places, 272 predicate places. [2025-02-06 18:43:18,046 INFO L471 AbstractCegarLoop]: Abstraction has has 311 places, 419 transitions, 7368 flow [2025-02-06 18:43:18,046 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 12.545454545454545) internal successors, (138), 11 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 18:43:18,046 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:43:18,046 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 18:43:18,046 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2025-02-06 18:43:18,046 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 12 more)] === [2025-02-06 18:43:18,047 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:43:18,047 INFO L85 PathProgramCache]: Analyzing trace with hash -297509075, now seen corresponding path program 3 times [2025-02-06 18:43:18,047 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:43:18,047 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1356506263] [2025-02-06 18:43:18,047 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-02-06 18:43:18,047 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:43:18,052 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 45 statements into 11 equivalence classes. [2025-02-06 18:43:18,054 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) and asserted 14 of 45 statements. [2025-02-06 18:43:18,054 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2025-02-06 18:43:18,054 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:43:18,134 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 156 trivial. 0 not checked. [2025-02-06 18:43:18,135 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:43:18,135 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1356506263] [2025-02-06 18:43:18,135 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1356506263] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:43:18,135 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 18:43:18,135 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2025-02-06 18:43:18,135 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1918982886] [2025-02-06 18:43:18,135 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:43:18,135 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-02-06 18:43:18,135 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:43:18,136 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-02-06 18:43:18,136 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2025-02-06 18:43:18,148 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 39 [2025-02-06 18:43:18,149 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 311 places, 419 transitions, 7368 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) [2025-02-06 18:43:18,149 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:43:18,149 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 39 [2025-02-06 18:43:18,149 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:43:19,305 INFO L124 PetriNetUnfolderBase]: 1486/3359 cut-off events. [2025-02-06 18:43:19,305 INFO L125 PetriNetUnfolderBase]: For 65608/65658 co-relation queries the response was YES. [2025-02-06 18:43:19,330 INFO L83 FinitePrefix]: Finished finitePrefix Result has 23983 conditions, 3359 events. 1486/3359 cut-off events. For 65608/65658 co-relation queries the response was YES. Maximal size of possible extension queue 132. Compared 23397 event pairs, 505 based on Foata normal form. 43/3402 useless extension candidates. Maximal degree in co-relation 23732. Up to 1394 conditions per place. [2025-02-06 18:43:19,342 INFO L140 encePairwiseOnDemand]: 25/39 looper letters, 427 selfloop transitions, 132 changer transitions 0/568 dead transitions. [2025-02-06 18:43:19,342 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 328 places, 568 transitions, 10529 flow [2025-02-06 18:43:19,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2025-02-06 18:43:19,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2025-02-06 18:43:19,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 374 transitions. [2025-02-06 18:43:19,343 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5327635327635327 [2025-02-06 18:43:19,343 INFO L175 Difference]: Start difference. First operand has 311 places, 419 transitions, 7368 flow. Second operand 18 states and 374 transitions. [2025-02-06 18:43:19,343 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 328 places, 568 transitions, 10529 flow [2025-02-06 18:43:19,563 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 326 places, 568 transitions, 10402 flow, removed 35 selfloop flow, removed 2 redundant places. [2025-02-06 18:43:19,570 INFO L231 Difference]: Finished difference. Result has 336 places, 461 transitions, 8497 flow [2025-02-06 18:43:19,571 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=39, PETRI_DIFFERENCE_MINUEND_FLOW=7263, PETRI_DIFFERENCE_MINUEND_PLACES=309, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=419, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=92, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=316, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=8497, PETRI_PLACES=336, PETRI_TRANSITIONS=461} [2025-02-06 18:43:19,571 INFO L279 CegarLoopForPetriNet]: 39 programPoint places, 297 predicate places. [2025-02-06 18:43:19,571 INFO L471 AbstractCegarLoop]: Abstraction has has 336 places, 461 transitions, 8497 flow [2025-02-06 18:43:19,571 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) [2025-02-06 18:43:19,571 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:43:19,571 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 18:43:19,571 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2025-02-06 18:43:19,571 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 12 more)] === [2025-02-06 18:43:19,572 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:43:19,572 INFO L85 PathProgramCache]: Analyzing trace with hash 1528348703, now seen corresponding path program 2 times [2025-02-06 18:43:19,572 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:43:19,572 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [990807392] [2025-02-06 18:43:19,572 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-06 18:43:19,572 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:43:19,579 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 45 statements into 2 equivalence classes. [2025-02-06 18:43:19,580 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 14 of 45 statements. [2025-02-06 18:43:19,580 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-06 18:43:19,580 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:43:19,679 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 156 trivial. 0 not checked. [2025-02-06 18:43:19,679 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:43:19,679 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [990807392] [2025-02-06 18:43:19,679 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [990807392] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:43:19,679 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 18:43:19,680 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2025-02-06 18:43:19,680 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [700720438] [2025-02-06 18:43:19,680 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:43:19,680 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-02-06 18:43:19,680 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:43:19,680 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-02-06 18:43:19,681 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2025-02-06 18:43:19,692 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 39 [2025-02-06 18:43:19,693 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 336 places, 461 transitions, 8497 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) [2025-02-06 18:43:19,693 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:43:19,693 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 39 [2025-02-06 18:43:19,693 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:43:20,765 INFO L124 PetriNetUnfolderBase]: 1638/3639 cut-off events. [2025-02-06 18:43:20,766 INFO L125 PetriNetUnfolderBase]: For 85624/85673 co-relation queries the response was YES. [2025-02-06 18:43:20,788 INFO L83 FinitePrefix]: Finished finitePrefix Result has 27629 conditions, 3639 events. 1638/3639 cut-off events. For 85624/85673 co-relation queries the response was YES. Maximal size of possible extension queue 137. Compared 25463 event pairs, 616 based on Foata normal form. 29/3664 useless extension candidates. Maximal degree in co-relation 27369. Up to 1795 conditions per place. [2025-02-06 18:43:20,801 INFO L140 encePairwiseOnDemand]: 25/39 looper letters, 427 selfloop transitions, 186 changer transitions 0/623 dead transitions. [2025-02-06 18:43:20,801 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 350 places, 623 transitions, 12078 flow [2025-02-06 18:43:20,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2025-02-06 18:43:20,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2025-02-06 18:43:20,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 315 transitions. [2025-02-06 18:43:20,802 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5384615384615384 [2025-02-06 18:43:20,802 INFO L175 Difference]: Start difference. First operand has 336 places, 461 transitions, 8497 flow. Second operand 15 states and 315 transitions. [2025-02-06 18:43:20,802 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 350 places, 623 transitions, 12078 flow [2025-02-06 18:43:21,119 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 348 places, 623 transitions, 11805 flow, removed 88 selfloop flow, removed 2 redundant places. [2025-02-06 18:43:21,127 INFO L231 Difference]: Finished difference. Result has 356 places, 499 transitions, 9553 flow [2025-02-06 18:43:21,128 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=39, PETRI_DIFFERENCE_MINUEND_FLOW=8261, PETRI_DIFFERENCE_MINUEND_PLACES=334, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=461, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=152, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=300, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=9553, PETRI_PLACES=356, PETRI_TRANSITIONS=499} [2025-02-06 18:43:21,128 INFO L279 CegarLoopForPetriNet]: 39 programPoint places, 317 predicate places. [2025-02-06 18:43:21,128 INFO L471 AbstractCegarLoop]: Abstraction has has 356 places, 499 transitions, 9553 flow [2025-02-06 18:43:21,128 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) [2025-02-06 18:43:21,128 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:43:21,128 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 18:43:21,128 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2025-02-06 18:43:21,129 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 12 more)] === [2025-02-06 18:43:21,129 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:43:21,129 INFO L85 PathProgramCache]: Analyzing trace with hash -1944804069, now seen corresponding path program 3 times [2025-02-06 18:43:21,129 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:43:21,129 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1296016225] [2025-02-06 18:43:21,129 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-02-06 18:43:21,129 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:43:21,137 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 45 statements into 11 equivalence classes. [2025-02-06 18:43:21,139 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) and asserted 14 of 45 statements. [2025-02-06 18:43:21,139 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2025-02-06 18:43:21,139 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:43:21,229 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 156 trivial. 0 not checked. [2025-02-06 18:43:21,229 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:43:21,229 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1296016225] [2025-02-06 18:43:21,229 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1296016225] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:43:21,229 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 18:43:21,229 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2025-02-06 18:43:21,229 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [413091105] [2025-02-06 18:43:21,229 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:43:21,230 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-02-06 18:43:21,230 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:43:21,230 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-02-06 18:43:21,230 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2025-02-06 18:43:21,245 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 39 [2025-02-06 18:43:21,246 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 356 places, 499 transitions, 9553 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) [2025-02-06 18:43:21,246 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:43:21,246 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 39 [2025-02-06 18:43:21,246 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:43:22,686 INFO L124 PetriNetUnfolderBase]: 1742/3855 cut-off events. [2025-02-06 18:43:22,686 INFO L125 PetriNetUnfolderBase]: For 103373/103423 co-relation queries the response was YES. [2025-02-06 18:43:22,714 INFO L83 FinitePrefix]: Finished finitePrefix Result has 30768 conditions, 3855 events. 1742/3855 cut-off events. For 103373/103423 co-relation queries the response was YES. Maximal size of possible extension queue 147. Compared 27278 event pairs, 649 based on Foata normal form. 30/3882 useless extension candidates. Maximal degree in co-relation 30500. Up to 1795 conditions per place. [2025-02-06 18:43:22,732 INFO L140 encePairwiseOnDemand]: 25/39 looper letters, 489 selfloop transitions, 158 changer transitions 0/657 dead transitions. [2025-02-06 18:43:22,732 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 373 places, 657 transitions, 13305 flow [2025-02-06 18:43:22,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2025-02-06 18:43:22,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2025-02-06 18:43:22,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 366 transitions. [2025-02-06 18:43:22,733 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5213675213675214 [2025-02-06 18:43:22,733 INFO L175 Difference]: Start difference. First operand has 356 places, 499 transitions, 9553 flow. Second operand 18 states and 366 transitions. [2025-02-06 18:43:22,733 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 373 places, 657 transitions, 13305 flow [2025-02-06 18:43:23,164 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 370 places, 657 transitions, 12942 flow, removed 70 selfloop flow, removed 3 redundant places. [2025-02-06 18:43:23,175 INFO L231 Difference]: Finished difference. Result has 381 places, 540 transitions, 10643 flow [2025-02-06 18:43:23,175 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=39, PETRI_DIFFERENCE_MINUEND_FLOW=9214, PETRI_DIFFERENCE_MINUEND_PLACES=353, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=499, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=121, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=364, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=10643, PETRI_PLACES=381, PETRI_TRANSITIONS=540} [2025-02-06 18:43:23,176 INFO L279 CegarLoopForPetriNet]: 39 programPoint places, 342 predicate places. [2025-02-06 18:43:23,176 INFO L471 AbstractCegarLoop]: Abstraction has has 381 places, 540 transitions, 10643 flow [2025-02-06 18:43:23,176 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) [2025-02-06 18:43:23,176 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:43:23,176 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 18:43:23,176 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2025-02-06 18:43:23,176 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 12 more)] === [2025-02-06 18:43:23,177 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:43:23,177 INFO L85 PathProgramCache]: Analyzing trace with hash -1146101489, now seen corresponding path program 4 times [2025-02-06 18:43:23,177 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:43:23,177 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [134176516] [2025-02-06 18:43:23,177 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-02-06 18:43:23,177 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:43:23,184 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 45 statements into 2 equivalence classes. [2025-02-06 18:43:23,191 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 45 of 45 statements. [2025-02-06 18:43:23,191 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-02-06 18:43:23,191 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:43:23,496 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2025-02-06 18:43:23,497 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:43:23,497 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [134176516] [2025-02-06 18:43:23,497 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [134176516] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:43:23,497 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 18:43:23,497 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2025-02-06 18:43:23,497 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [44609753] [2025-02-06 18:43:23,497 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:43:23,497 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2025-02-06 18:43:23,498 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:43:23,498 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2025-02-06 18:43:23,498 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2025-02-06 18:43:23,518 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 39 [2025-02-06 18:43:23,518 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 381 places, 540 transitions, 10643 flow. Second operand has 11 states, 11 states have (on average 13.454545454545455) internal successors, (148), 11 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 18:43:23,518 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:43:23,518 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 39 [2025-02-06 18:43:23,518 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:43:24,727 INFO L124 PetriNetUnfolderBase]: 1683/3800 cut-off events. [2025-02-06 18:43:24,727 INFO L125 PetriNetUnfolderBase]: For 122343/122381 co-relation queries the response was YES. [2025-02-06 18:43:24,845 INFO L83 FinitePrefix]: Finished finitePrefix Result has 32499 conditions, 3800 events. 1683/3800 cut-off events. For 122343/122381 co-relation queries the response was YES. Maximal size of possible extension queue 165. Compared 27821 event pairs, 495 based on Foata normal form. 28/3827 useless extension candidates. Maximal degree in co-relation 32220. Up to 2475 conditions per place. [2025-02-06 18:43:24,862 INFO L140 encePairwiseOnDemand]: 25/39 looper letters, 585 selfloop transitions, 138 changer transitions 0/737 dead transitions. [2025-02-06 18:43:24,862 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 397 places, 737 transitions, 15742 flow [2025-02-06 18:43:24,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2025-02-06 18:43:24,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2025-02-06 18:43:24,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 351 transitions. [2025-02-06 18:43:24,863 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5294117647058824 [2025-02-06 18:43:24,863 INFO L175 Difference]: Start difference. First operand has 381 places, 540 transitions, 10643 flow. Second operand 17 states and 351 transitions. [2025-02-06 18:43:24,863 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 397 places, 737 transitions, 15742 flow [2025-02-06 18:43:25,363 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 395 places, 737 transitions, 15391 flow, removed 112 selfloop flow, removed 2 redundant places. [2025-02-06 18:43:25,373 INFO L231 Difference]: Finished difference. Result has 404 places, 593 transitions, 12200 flow [2025-02-06 18:43:25,373 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=39, PETRI_DIFFERENCE_MINUEND_FLOW=10338, PETRI_DIFFERENCE_MINUEND_PLACES=379, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=540, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=94, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=421, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=12200, PETRI_PLACES=404, PETRI_TRANSITIONS=593} [2025-02-06 18:43:25,374 INFO L279 CegarLoopForPetriNet]: 39 programPoint places, 365 predicate places. [2025-02-06 18:43:25,374 INFO L471 AbstractCegarLoop]: Abstraction has has 404 places, 593 transitions, 12200 flow [2025-02-06 18:43:25,375 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 13.454545454545455) internal successors, (148), 11 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 18:43:25,375 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:43:25,375 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 18:43:25,375 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2025-02-06 18:43:25,375 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 12 more)] === [2025-02-06 18:43:25,375 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:43:25,375 INFO L85 PathProgramCache]: Analyzing trace with hash -816659037, now seen corresponding path program 5 times [2025-02-06 18:43:25,375 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:43:25,375 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1824028492] [2025-02-06 18:43:25,375 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-02-06 18:43:25,375 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:43:25,382 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 45 statements into 11 equivalence classes. [2025-02-06 18:43:25,390 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) and asserted 45 of 45 statements. [2025-02-06 18:43:25,391 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) [2025-02-06 18:43:25,391 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:43:25,612 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2025-02-06 18:43:25,612 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:43:25,613 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1824028492] [2025-02-06 18:43:25,613 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1824028492] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:43:25,613 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 18:43:25,613 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2025-02-06 18:43:25,613 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [217947826] [2025-02-06 18:43:25,613 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:43:25,613 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2025-02-06 18:43:25,613 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:43:25,614 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2025-02-06 18:43:25,614 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2025-02-06 18:43:25,644 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 39 [2025-02-06 18:43:25,644 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 404 places, 593 transitions, 12200 flow. Second operand has 11 states, 11 states have (on average 13.454545454545455) internal successors, (148), 11 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 18:43:25,644 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:43:25,644 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 39 [2025-02-06 18:43:25,644 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:43:27,055 INFO L124 PetriNetUnfolderBase]: 1814/4067 cut-off events. [2025-02-06 18:43:27,055 INFO L125 PetriNetUnfolderBase]: For 145412/145451 co-relation queries the response was YES. [2025-02-06 18:43:27,088 INFO L83 FinitePrefix]: Finished finitePrefix Result has 36130 conditions, 4067 events. 1814/4067 cut-off events. For 145412/145451 co-relation queries the response was YES. Maximal size of possible extension queue 177. Compared 30175 event pairs, 542 based on Foata normal form. 31/4097 useless extension candidates. Maximal degree in co-relation 35841. Up to 2923 conditions per place. [2025-02-06 18:43:27,109 INFO L140 encePairwiseOnDemand]: 26/39 looper letters, 626 selfloop transitions, 83 changer transitions 0/723 dead transitions. [2025-02-06 18:43:27,109 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 416 places, 723 transitions, 15865 flow [2025-02-06 18:43:27,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-02-06 18:43:27,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2025-02-06 18:43:27,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 257 transitions. [2025-02-06 18:43:27,110 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5069033530571992 [2025-02-06 18:43:27,110 INFO L175 Difference]: Start difference. First operand has 404 places, 593 transitions, 12200 flow. Second operand 13 states and 257 transitions. [2025-02-06 18:43:27,110 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 416 places, 723 transitions, 15865 flow [2025-02-06 18:43:27,734 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 415 places, 723 transitions, 15520 flow, removed 169 selfloop flow, removed 1 redundant places. [2025-02-06 18:43:27,746 INFO L231 Difference]: Finished difference. Result has 423 places, 617 transitions, 12812 flow [2025-02-06 18:43:27,746 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=39, PETRI_DIFFERENCE_MINUEND_FLOW=11860, PETRI_DIFFERENCE_MINUEND_PLACES=403, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=593, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=62, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=518, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=12812, PETRI_PLACES=423, PETRI_TRANSITIONS=617} [2025-02-06 18:43:27,747 INFO L279 CegarLoopForPetriNet]: 39 programPoint places, 384 predicate places. [2025-02-06 18:43:27,747 INFO L471 AbstractCegarLoop]: Abstraction has has 423 places, 617 transitions, 12812 flow [2025-02-06 18:43:27,747 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 13.454545454545455) internal successors, (148), 11 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 18:43:27,747 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:43:27,747 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 18:43:27,747 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2025-02-06 18:43:27,747 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 12 more)] === [2025-02-06 18:43:27,748 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:43:27,748 INFO L85 PathProgramCache]: Analyzing trace with hash 11365961, now seen corresponding path program 4 times [2025-02-06 18:43:27,748 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:43:27,748 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1908775344] [2025-02-06 18:43:27,748 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-02-06 18:43:27,748 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:43:27,760 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 45 statements into 2 equivalence classes. [2025-02-06 18:43:27,766 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 45 of 45 statements. [2025-02-06 18:43:27,767 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-02-06 18:43:27,767 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:43:27,945 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2025-02-06 18:43:27,945 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:43:27,946 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1908775344] [2025-02-06 18:43:27,946 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1908775344] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:43:27,946 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 18:43:27,946 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2025-02-06 18:43:27,946 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1133280497] [2025-02-06 18:43:27,946 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:43:27,946 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2025-02-06 18:43:27,946 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:43:27,947 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2025-02-06 18:43:27,947 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2025-02-06 18:43:27,965 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 39 [2025-02-06 18:43:27,966 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 423 places, 617 transitions, 12812 flow. Second operand has 11 states, 11 states have (on average 12.545454545454545) internal successors, (138), 11 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 18:43:27,966 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:43:27,966 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 39 [2025-02-06 18:43:27,966 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:43:29,669 INFO L124 PetriNetUnfolderBase]: 2096/4591 cut-off events. [2025-02-06 18:43:29,669 INFO L125 PetriNetUnfolderBase]: For 167605/167662 co-relation queries the response was YES. [2025-02-06 18:43:29,708 INFO L83 FinitePrefix]: Finished finitePrefix Result has 40846 conditions, 4591 events. 2096/4591 cut-off events. For 167605/167662 co-relation queries the response was YES. Maximal size of possible extension queue 184. Compared 33955 event pairs, 723 based on Foata normal form. 33/4624 useless extension candidates. Maximal degree in co-relation 40548. Up to 1802 conditions per place. [2025-02-06 18:43:29,726 INFO L140 encePairwiseOnDemand]: 24/39 looper letters, 602 selfloop transitions, 155 changer transitions 0/768 dead transitions. [2025-02-06 18:43:29,726 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 441 places, 768 transitions, 17131 flow [2025-02-06 18:43:29,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2025-02-06 18:43:29,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2025-02-06 18:43:29,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 377 transitions. [2025-02-06 18:43:29,727 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5087719298245614 [2025-02-06 18:43:29,727 INFO L175 Difference]: Start difference. First operand has 423 places, 617 transitions, 12812 flow. Second operand 19 states and 377 transitions. [2025-02-06 18:43:29,727 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 441 places, 768 transitions, 17131 flow [2025-02-06 18:43:30,497 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 437 places, 768 transitions, 16848 flow, removed 100 selfloop flow, removed 4 redundant places. [2025-02-06 18:43:30,508 INFO L231 Difference]: Finished difference. Result has 448 places, 652 transitions, 14017 flow [2025-02-06 18:43:30,508 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=39, PETRI_DIFFERENCE_MINUEND_FLOW=12594, PETRI_DIFFERENCE_MINUEND_PLACES=419, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=617, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=122, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=484, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=14017, PETRI_PLACES=448, PETRI_TRANSITIONS=652} [2025-02-06 18:43:30,509 INFO L279 CegarLoopForPetriNet]: 39 programPoint places, 409 predicate places. [2025-02-06 18:43:30,509 INFO L471 AbstractCegarLoop]: Abstraction has has 448 places, 652 transitions, 14017 flow [2025-02-06 18:43:30,509 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 12.545454545454545) internal successors, (138), 11 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 18:43:30,509 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:43:30,509 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 18:43:30,509 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2025-02-06 18:43:30,509 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 12 more)] === [2025-02-06 18:43:30,510 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:43:30,510 INFO L85 PathProgramCache]: Analyzing trace with hash -1683896761, now seen corresponding path program 5 times [2025-02-06 18:43:30,510 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:43:30,510 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1223204971] [2025-02-06 18:43:30,510 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-02-06 18:43:30,510 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:43:30,522 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 45 statements into 11 equivalence classes. [2025-02-06 18:43:30,528 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) and asserted 45 of 45 statements. [2025-02-06 18:43:30,529 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) [2025-02-06 18:43:30,529 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:43:30,873 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2025-02-06 18:43:30,873 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:43:30,873 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1223204971] [2025-02-06 18:43:30,873 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1223204971] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:43:30,873 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 18:43:30,873 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2025-02-06 18:43:30,873 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1828020018] [2025-02-06 18:43:30,873 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:43:30,874 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2025-02-06 18:43:30,874 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:43:30,874 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2025-02-06 18:43:30,874 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2025-02-06 18:43:30,900 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 39 [2025-02-06 18:43:30,901 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 448 places, 652 transitions, 14017 flow. Second operand has 11 states, 11 states have (on average 13.454545454545455) internal successors, (148), 11 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 18:43:30,901 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:43:30,901 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 39 [2025-02-06 18:43:30,901 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:43:32,385 INFO L124 PetriNetUnfolderBase]: 2056/4593 cut-off events. [2025-02-06 18:43:32,386 INFO L125 PetriNetUnfolderBase]: For 203711/203763 co-relation queries the response was YES. [2025-02-06 18:43:32,426 INFO L83 FinitePrefix]: Finished finitePrefix Result has 43687 conditions, 4593 events. 2056/4593 cut-off events. For 203711/203763 co-relation queries the response was YES. Maximal size of possible extension queue 209. Compared 35119 event pairs, 550 based on Foata normal form. 44/4637 useless extension candidates. Maximal degree in co-relation 43377. Up to 3119 conditions per place. [2025-02-06 18:43:32,444 INFO L140 encePairwiseOnDemand]: 26/39 looper letters, 665 selfloop transitions, 123 changer transitions 0/803 dead transitions. [2025-02-06 18:43:32,444 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 460 places, 803 transitions, 18353 flow [2025-02-06 18:43:32,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-02-06 18:43:32,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2025-02-06 18:43:32,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 262 transitions. [2025-02-06 18:43:32,445 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5167652859960552 [2025-02-06 18:43:32,445 INFO L175 Difference]: Start difference. First operand has 448 places, 652 transitions, 14017 flow. Second operand 13 states and 262 transitions. [2025-02-06 18:43:32,445 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 460 places, 803 transitions, 18353 flow [2025-02-06 18:43:33,306 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 457 places, 803 transitions, 18085 flow, removed 112 selfloop flow, removed 3 redundant places. [2025-02-06 18:43:33,317 INFO L231 Difference]: Finished difference. Result has 465 places, 705 transitions, 15435 flow [2025-02-06 18:43:33,318 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=39, PETRI_DIFFERENCE_MINUEND_FLOW=13752, PETRI_DIFFERENCE_MINUEND_PLACES=445, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=652, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=74, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=537, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=15435, PETRI_PLACES=465, PETRI_TRANSITIONS=705} [2025-02-06 18:43:33,318 INFO L279 CegarLoopForPetriNet]: 39 programPoint places, 426 predicate places. [2025-02-06 18:43:33,318 INFO L471 AbstractCegarLoop]: Abstraction has has 465 places, 705 transitions, 15435 flow [2025-02-06 18:43:33,318 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 13.454545454545455) internal successors, (148), 11 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 18:43:33,318 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:43:33,318 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 18:43:33,318 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2025-02-06 18:43:33,319 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 12 more)] === [2025-02-06 18:43:33,319 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:43:33,319 INFO L85 PathProgramCache]: Analyzing trace with hash 1973841045, now seen corresponding path program 6 times [2025-02-06 18:43:33,319 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:43:33,319 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [652733471] [2025-02-06 18:43:33,319 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-02-06 18:43:33,319 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:43:33,325 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 45 statements into 11 equivalence classes. [2025-02-06 18:43:33,327 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) and asserted 14 of 45 statements. [2025-02-06 18:43:33,327 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2025-02-06 18:43:33,327 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:43:33,413 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 156 trivial. 0 not checked. [2025-02-06 18:43:33,414 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:43:33,414 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [652733471] [2025-02-06 18:43:33,414 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [652733471] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:43:33,414 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 18:43:33,414 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2025-02-06 18:43:33,414 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1627243647] [2025-02-06 18:43:33,414 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:43:33,414 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-02-06 18:43:33,414 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:43:33,415 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-02-06 18:43:33,415 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2025-02-06 18:43:33,431 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 39 [2025-02-06 18:43:33,431 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 465 places, 705 transitions, 15435 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) [2025-02-06 18:43:33,431 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:43:33,431 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 39 [2025-02-06 18:43:33,432 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:43:35,504 INFO L124 PetriNetUnfolderBase]: 2409/5231 cut-off events. [2025-02-06 18:43:35,505 INFO L125 PetriNetUnfolderBase]: For 247097/247185 co-relation queries the response was YES. [2025-02-06 18:43:35,559 INFO L83 FinitePrefix]: Finished finitePrefix Result has 50919 conditions, 5231 events. 2409/5231 cut-off events. For 247097/247185 co-relation queries the response was YES. Maximal size of possible extension queue 211. Compared 39444 event pairs, 874 based on Foata normal form. 39/5270 useless extension candidates. Maximal degree in co-relation 50601. Up to 2018 conditions per place. [2025-02-06 18:43:35,591 INFO L140 encePairwiseOnDemand]: 25/39 looper letters, 551 selfloop transitions, 302 changer transitions 0/864 dead transitions. [2025-02-06 18:43:35,591 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 482 places, 864 transitions, 20328 flow [2025-02-06 18:43:35,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2025-02-06 18:43:35,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2025-02-06 18:43:35,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 359 transitions. [2025-02-06 18:43:35,592 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5113960113960114 [2025-02-06 18:43:35,592 INFO L175 Difference]: Start difference. First operand has 465 places, 705 transitions, 15435 flow. Second operand 18 states and 359 transitions. [2025-02-06 18:43:35,592 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 482 places, 864 transitions, 20328 flow [2025-02-06 18:43:36,766 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 480 places, 864 transitions, 20097 flow, removed 102 selfloop flow, removed 2 redundant places. [2025-02-06 18:43:36,782 INFO L231 Difference]: Finished difference. Result has 492 places, 759 transitions, 17713 flow [2025-02-06 18:43:36,783 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=39, PETRI_DIFFERENCE_MINUEND_FLOW=15226, PETRI_DIFFERENCE_MINUEND_PLACES=463, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=705, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=248, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=438, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=17713, PETRI_PLACES=492, PETRI_TRANSITIONS=759} [2025-02-06 18:43:36,783 INFO L279 CegarLoopForPetriNet]: 39 programPoint places, 453 predicate places. [2025-02-06 18:43:36,783 INFO L471 AbstractCegarLoop]: Abstraction has has 492 places, 759 transitions, 17713 flow [2025-02-06 18:43:36,783 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) [2025-02-06 18:43:36,783 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:43:36,783 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 18:43:36,784 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2025-02-06 18:43:36,784 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 12 more)] === [2025-02-06 18:43:36,784 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:43:36,784 INFO L85 PathProgramCache]: Analyzing trace with hash 1674876043, now seen corresponding path program 7 times [2025-02-06 18:43:36,785 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:43:36,785 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1924502239] [2025-02-06 18:43:36,785 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2025-02-06 18:43:36,785 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:43:36,797 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 45 statements into 1 equivalence classes. [2025-02-06 18:43:36,802 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 45 of 45 statements. [2025-02-06 18:43:36,803 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:43:36,803 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:43:37,025 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2025-02-06 18:43:37,025 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:43:37,025 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1924502239] [2025-02-06 18:43:37,025 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1924502239] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:43:37,025 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 18:43:37,025 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2025-02-06 18:43:37,025 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [91388634] [2025-02-06 18:43:37,025 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:43:37,026 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2025-02-06 18:43:37,026 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:43:37,026 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2025-02-06 18:43:37,026 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2025-02-06 18:43:37,041 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 39 [2025-02-06 18:43:37,042 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 492 places, 759 transitions, 17713 flow. Second operand has 11 states, 11 states have (on average 12.545454545454545) internal successors, (138), 11 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 18:43:37,042 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:43:37,042 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 39 [2025-02-06 18:43:37,042 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:43:39,257 INFO L124 PetriNetUnfolderBase]: 2501/5434 cut-off events. [2025-02-06 18:43:39,257 INFO L125 PetriNetUnfolderBase]: For 306173/306252 co-relation queries the response was YES. [2025-02-06 18:43:39,304 INFO L83 FinitePrefix]: Finished finitePrefix Result has 55887 conditions, 5434 events. 2501/5434 cut-off events. For 306173/306252 co-relation queries the response was YES. Maximal size of possible extension queue 222. Compared 41530 event pairs, 888 based on Foata normal form. 37/5471 useless extension candidates. Maximal degree in co-relation 55558. Up to 2089 conditions per place. [2025-02-06 18:43:39,325 INFO L140 encePairwiseOnDemand]: 24/39 looper letters, 743 selfloop transitions, 151 changer transitions 0/905 dead transitions. [2025-02-06 18:43:39,326 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 509 places, 905 transitions, 22557 flow [2025-02-06 18:43:39,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2025-02-06 18:43:39,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2025-02-06 18:43:39,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 370 transitions. [2025-02-06 18:43:39,327 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5270655270655271 [2025-02-06 18:43:39,327 INFO L175 Difference]: Start difference. First operand has 492 places, 759 transitions, 17713 flow. Second operand 18 states and 370 transitions. [2025-02-06 18:43:39,327 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 509 places, 905 transitions, 22557 flow [2025-02-06 18:43:40,841 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 508 places, 905 transitions, 22221 flow, removed 151 selfloop flow, removed 1 redundant places. [2025-02-06 18:43:40,855 INFO L231 Difference]: Finished difference. Result has 519 places, 788 transitions, 18860 flow [2025-02-06 18:43:40,856 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=39, PETRI_DIFFERENCE_MINUEND_FLOW=17378, PETRI_DIFFERENCE_MINUEND_PLACES=491, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=759, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=123, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=625, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=18860, PETRI_PLACES=519, PETRI_TRANSITIONS=788} [2025-02-06 18:43:40,856 INFO L279 CegarLoopForPetriNet]: 39 programPoint places, 480 predicate places. [2025-02-06 18:43:40,856 INFO L471 AbstractCegarLoop]: Abstraction has has 519 places, 788 transitions, 18860 flow [2025-02-06 18:43:40,856 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 12.545454545454545) internal successors, (138), 11 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 18:43:40,856 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:43:40,856 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 18:43:40,856 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2025-02-06 18:43:40,856 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 12 more)] === [2025-02-06 18:43:40,857 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:43:40,857 INFO L85 PathProgramCache]: Analyzing trace with hash 1607683601, now seen corresponding path program 8 times [2025-02-06 18:43:40,857 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:43:40,857 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2131932276] [2025-02-06 18:43:40,857 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-06 18:43:40,857 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:43:40,864 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 45 statements into 2 equivalence classes. [2025-02-06 18:43:40,865 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 14 of 45 statements. [2025-02-06 18:43:40,865 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-06 18:43:40,865 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:43:40,951 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 156 trivial. 0 not checked. [2025-02-06 18:43:40,951 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:43:40,951 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2131932276] [2025-02-06 18:43:40,951 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2131932276] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:43:40,951 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 18:43:40,951 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2025-02-06 18:43:40,951 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1392574682] [2025-02-06 18:43:40,951 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:43:40,952 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-02-06 18:43:40,952 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:43:40,952 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-02-06 18:43:40,952 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2025-02-06 18:43:40,968 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 39 [2025-02-06 18:43:40,968 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 519 places, 788 transitions, 18860 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) [2025-02-06 18:43:40,968 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:43:40,968 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 39 [2025-02-06 18:43:40,968 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:43:43,530 INFO L124 PetriNetUnfolderBase]: 2669/5751 cut-off events. [2025-02-06 18:43:43,531 INFO L125 PetriNetUnfolderBase]: For 380569/380659 co-relation queries the response was YES. [2025-02-06 18:43:43,591 INFO L83 FinitePrefix]: Finished finitePrefix Result has 62115 conditions, 5751 events. 2669/5751 cut-off events. For 380569/380659 co-relation queries the response was YES. Maximal size of possible extension queue 244. Compared 44528 event pairs, 794 based on Foata normal form. 39/5788 useless extension candidates. Maximal degree in co-relation 61773. Up to 2319 conditions per place. [2025-02-06 18:43:43,616 INFO L140 encePairwiseOnDemand]: 25/39 looper letters, 604 selfloop transitions, 386 changer transitions 0/1001 dead transitions. [2025-02-06 18:43:43,616 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 541 places, 1001 transitions, 25435 flow [2025-02-06 18:43:43,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2025-02-06 18:43:43,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2025-02-06 18:43:43,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 445 transitions. [2025-02-06 18:43:43,617 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.496098104793757 [2025-02-06 18:43:43,617 INFO L175 Difference]: Start difference. First operand has 519 places, 788 transitions, 18860 flow. Second operand 23 states and 445 transitions. [2025-02-06 18:43:43,617 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 541 places, 1001 transitions, 25435 flow [2025-02-06 18:43:45,244 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 537 places, 1001 transitions, 24965 flow, removed 174 selfloop flow, removed 4 redundant places. [2025-02-06 18:43:45,260 INFO L231 Difference]: Finished difference. Result has 554 places, 849 transitions, 21808 flow [2025-02-06 18:43:45,261 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=39, PETRI_DIFFERENCE_MINUEND_FLOW=18411, PETRI_DIFFERENCE_MINUEND_PLACES=515, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=788, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=328, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=434, PETRI_DIFFERENCE_SUBTRAHEND_STATES=23, PETRI_FLOW=21808, PETRI_PLACES=554, PETRI_TRANSITIONS=849} [2025-02-06 18:43:45,261 INFO L279 CegarLoopForPetriNet]: 39 programPoint places, 515 predicate places. [2025-02-06 18:43:45,261 INFO L471 AbstractCegarLoop]: Abstraction has has 554 places, 849 transitions, 21808 flow [2025-02-06 18:43:45,265 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) [2025-02-06 18:43:45,265 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:43:45,265 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 18:43:45,265 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2025-02-06 18:43:45,265 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 12 more)] === [2025-02-06 18:43:45,266 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:43:45,266 INFO L85 PathProgramCache]: Analyzing trace with hash 1954922583, now seen corresponding path program 9 times [2025-02-06 18:43:45,266 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:43:45,266 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1375603893] [2025-02-06 18:43:45,266 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-02-06 18:43:45,266 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:43:45,276 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 45 statements into 11 equivalence classes. [2025-02-06 18:43:45,278 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) and asserted 14 of 45 statements. [2025-02-06 18:43:45,278 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2025-02-06 18:43:45,278 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:43:45,366 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 156 trivial. 0 not checked. [2025-02-06 18:43:45,366 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:43:45,367 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1375603893] [2025-02-06 18:43:45,367 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1375603893] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:43:45,367 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 18:43:45,367 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2025-02-06 18:43:45,367 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [413135899] [2025-02-06 18:43:45,367 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:43:45,367 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-02-06 18:43:45,367 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:43:45,368 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-02-06 18:43:45,368 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2025-02-06 18:43:45,376 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 39 [2025-02-06 18:43:45,376 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 554 places, 849 transitions, 21808 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) [2025-02-06 18:43:45,376 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:43:45,376 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 39 [2025-02-06 18:43:45,376 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:43:47,956 INFO L124 PetriNetUnfolderBase]: 2771/5983 cut-off events. [2025-02-06 18:43:47,956 INFO L125 PetriNetUnfolderBase]: For 460620/460705 co-relation queries the response was YES. [2025-02-06 18:43:48,024 INFO L83 FinitePrefix]: Finished finitePrefix Result has 68368 conditions, 5983 events. 2771/5983 cut-off events. For 460620/460705 co-relation queries the response was YES. Maximal size of possible extension queue 258. Compared 46475 event pairs, 984 based on Foata normal form. 37/6020 useless extension candidates. Maximal degree in co-relation 68013. Up to 2488 conditions per place. [2025-02-06 18:43:48,052 INFO L140 encePairwiseOnDemand]: 25/39 looper letters, 789 selfloop transitions, 210 changer transitions 0/1010 dead transitions. [2025-02-06 18:43:48,052 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 570 places, 1010 transitions, 27710 flow [2025-02-06 18:43:48,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2025-02-06 18:43:48,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2025-02-06 18:43:48,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 347 transitions. [2025-02-06 18:43:48,053 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5233785822021116 [2025-02-06 18:43:48,053 INFO L175 Difference]: Start difference. First operand has 554 places, 849 transitions, 21808 flow. Second operand 17 states and 347 transitions. [2025-02-06 18:43:48,053 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 570 places, 1010 transitions, 27710 flow [2025-02-06 18:43:50,705 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 567 places, 1010 transitions, 26959 flow, removed 309 selfloop flow, removed 3 redundant places. [2025-02-06 18:43:50,722 INFO L231 Difference]: Finished difference. Result has 579 places, 895 transitions, 23695 flow [2025-02-06 18:43:50,723 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=39, PETRI_DIFFERENCE_MINUEND_FLOW=21072, PETRI_DIFFERENCE_MINUEND_PLACES=551, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=849, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=167, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=669, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=23695, PETRI_PLACES=579, PETRI_TRANSITIONS=895} [2025-02-06 18:43:50,723 INFO L279 CegarLoopForPetriNet]: 39 programPoint places, 540 predicate places. [2025-02-06 18:43:50,723 INFO L471 AbstractCegarLoop]: Abstraction has has 579 places, 895 transitions, 23695 flow [2025-02-06 18:43:50,723 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) [2025-02-06 18:43:50,723 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:43:50,723 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 18:43:50,723 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2025-02-06 18:43:50,723 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 12 more)] === [2025-02-06 18:43:50,724 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:43:50,724 INFO L85 PathProgramCache]: Analyzing trace with hash 1366001007, now seen corresponding path program 10 times [2025-02-06 18:43:50,724 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:43:50,724 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1571369701] [2025-02-06 18:43:50,724 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-02-06 18:43:50,724 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:43:50,730 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 45 statements into 2 equivalence classes. [2025-02-06 18:43:50,734 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 45 of 45 statements. [2025-02-06 18:43:50,734 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-02-06 18:43:50,734 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:43:50,888 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2025-02-06 18:43:50,888 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:43:50,888 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1571369701] [2025-02-06 18:43:50,889 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1571369701] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:43:50,889 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 18:43:50,889 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2025-02-06 18:43:50,889 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1832885564] [2025-02-06 18:43:50,889 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:43:50,889 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2025-02-06 18:43:50,889 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:43:50,889 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2025-02-06 18:43:50,889 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2025-02-06 18:43:50,905 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 39 [2025-02-06 18:43:50,905 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 579 places, 895 transitions, 23695 flow. Second operand has 11 states, 11 states have (on average 12.545454545454545) internal successors, (138), 11 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 18:43:50,905 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:43:50,905 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 39 [2025-02-06 18:43:50,906 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:43:53,776 INFO L124 PetriNetUnfolderBase]: 2864/6160 cut-off events. [2025-02-06 18:43:53,776 INFO L125 PetriNetUnfolderBase]: For 528568/528678 co-relation queries the response was YES. [2025-02-06 18:43:53,847 INFO L83 FinitePrefix]: Finished finitePrefix Result has 72627 conditions, 6160 events. 2864/6160 cut-off events. For 528568/528678 co-relation queries the response was YES. Maximal size of possible extension queue 265. Compared 48005 event pairs, 1053 based on Foata normal form. 41/6201 useless extension candidates. Maximal degree in co-relation 72261. Up to 2676 conditions per place. [2025-02-06 18:43:53,875 INFO L140 encePairwiseOnDemand]: 24/39 looper letters, 725 selfloop transitions, 277 changer transitions 0/1013 dead transitions. [2025-02-06 18:43:53,875 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 595 places, 1013 transitions, 28468 flow [2025-02-06 18:43:53,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2025-02-06 18:43:53,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2025-02-06 18:43:53,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 348 transitions. [2025-02-06 18:43:53,876 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5248868778280543 [2025-02-06 18:43:53,876 INFO L175 Difference]: Start difference. First operand has 579 places, 895 transitions, 23695 flow. Second operand 17 states and 348 transitions. [2025-02-06 18:43:53,876 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 595 places, 1013 transitions, 28468 flow [2025-02-06 18:43:56,931 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 595 places, 1013 transitions, 27960 flow, removed 254 selfloop flow, removed 0 redundant places. [2025-02-06 18:43:56,951 INFO L231 Difference]: Finished difference. Result has 606 places, 924 transitions, 25201 flow [2025-02-06 18:43:56,952 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=39, PETRI_DIFFERENCE_MINUEND_FLOW=23195, PETRI_DIFFERENCE_MINUEND_PLACES=579, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=895, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=249, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=636, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=25201, PETRI_PLACES=606, PETRI_TRANSITIONS=924} [2025-02-06 18:43:56,952 INFO L279 CegarLoopForPetriNet]: 39 programPoint places, 567 predicate places. [2025-02-06 18:43:56,952 INFO L471 AbstractCegarLoop]: Abstraction has has 606 places, 924 transitions, 25201 flow [2025-02-06 18:43:56,952 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 12.545454545454545) internal successors, (138), 11 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 18:43:56,952 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:43:56,952 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 18:43:56,953 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2025-02-06 18:43:56,953 INFO L396 AbstractCegarLoop]: === Iteration 40 === Targeting t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 12 more)] === [2025-02-06 18:43:56,953 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:43:56,953 INFO L85 PathProgramCache]: Analyzing trace with hash -1702815223, now seen corresponding path program 11 times [2025-02-06 18:43:56,954 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:43:56,954 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1441097577] [2025-02-06 18:43:56,954 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-02-06 18:43:56,954 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:43:56,962 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 45 statements into 11 equivalence classes. [2025-02-06 18:43:56,971 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) and asserted 45 of 45 statements. [2025-02-06 18:43:56,972 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) [2025-02-06 18:43:56,972 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:43:57,216 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2025-02-06 18:43:57,217 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:43:57,217 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1441097577] [2025-02-06 18:43:57,217 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1441097577] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:43:57,217 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 18:43:57,217 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2025-02-06 18:43:57,217 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1605550300] [2025-02-06 18:43:57,217 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:43:57,217 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2025-02-06 18:43:57,217 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:43:57,218 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2025-02-06 18:43:57,218 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2025-02-06 18:43:57,238 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 39 [2025-02-06 18:43:57,238 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 606 places, 924 transitions, 25201 flow. Second operand has 11 states, 11 states have (on average 12.545454545454545) internal successors, (138), 11 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 18:43:57,238 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:43:57,238 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 39 [2025-02-06 18:43:57,238 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:44:00,549 INFO L124 PetriNetUnfolderBase]: 2956/6337 cut-off events. [2025-02-06 18:44:00,549 INFO L125 PetriNetUnfolderBase]: For 607613/607719 co-relation queries the response was YES. [2025-02-06 18:44:00,632 INFO L83 FinitePrefix]: Finished finitePrefix Result has 77099 conditions, 6337 events. 2956/6337 cut-off events. For 607613/607719 co-relation queries the response was YES. Maximal size of possible extension queue 279. Compared 49560 event pairs, 1102 based on Foata normal form. 40/6377 useless extension candidates. Maximal degree in co-relation 76720. Up to 2770 conditions per place. [2025-02-06 18:44:00,664 INFO L140 encePairwiseOnDemand]: 24/39 looper letters, 826 selfloop transitions, 215 changer transitions 0/1052 dead transitions. [2025-02-06 18:44:00,664 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 623 places, 1052 transitions, 30368 flow [2025-02-06 18:44:00,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2025-02-06 18:44:00,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2025-02-06 18:44:00,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 352 transitions. [2025-02-06 18:44:00,665 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5014245014245015 [2025-02-06 18:44:00,665 INFO L175 Difference]: Start difference. First operand has 606 places, 924 transitions, 25201 flow. Second operand 18 states and 352 transitions. [2025-02-06 18:44:00,665 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 623 places, 1052 transitions, 30368 flow [2025-02-06 18:44:04,063 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 619 places, 1052 transitions, 29755 flow, removed 197 selfloop flow, removed 4 redundant places. [2025-02-06 18:44:04,081 INFO L231 Difference]: Finished difference. Result has 629 places, 947 transitions, 26432 flow [2025-02-06 18:44:04,081 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=39, PETRI_DIFFERENCE_MINUEND_FLOW=24598, PETRI_DIFFERENCE_MINUEND_PLACES=602, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=924, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=193, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=719, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=26432, PETRI_PLACES=629, PETRI_TRANSITIONS=947} [2025-02-06 18:44:04,082 INFO L279 CegarLoopForPetriNet]: 39 programPoint places, 590 predicate places. [2025-02-06 18:44:04,082 INFO L471 AbstractCegarLoop]: Abstraction has has 629 places, 947 transitions, 26432 flow [2025-02-06 18:44:04,082 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 12.545454545454545) internal successors, (138), 11 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 18:44:04,082 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:44:04,082 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 18:44:04,082 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2025-02-06 18:44:04,082 INFO L396 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 12 more)] === [2025-02-06 18:44:04,083 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:44:04,083 INFO L85 PathProgramCache]: Analyzing trace with hash -1979477187, now seen corresponding path program 6 times [2025-02-06 18:44:04,083 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:44:04,083 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [381449858] [2025-02-06 18:44:04,083 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-02-06 18:44:04,083 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:44:04,090 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 45 statements into 11 equivalence classes. [2025-02-06 18:44:04,091 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) and asserted 14 of 45 statements. [2025-02-06 18:44:04,091 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2025-02-06 18:44:04,091 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:44:04,166 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 156 trivial. 0 not checked. [2025-02-06 18:44:04,166 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:44:04,166 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [381449858] [2025-02-06 18:44:04,166 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [381449858] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:44:04,166 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 18:44:04,166 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2025-02-06 18:44:04,166 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [87363241] [2025-02-06 18:44:04,167 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:44:04,167 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-02-06 18:44:04,167 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:44:04,167 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-02-06 18:44:04,167 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2025-02-06 18:44:04,188 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 39 [2025-02-06 18:44:04,188 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 629 places, 947 transitions, 26432 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) [2025-02-06 18:44:04,188 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:44:04,188 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 39 [2025-02-06 18:44:04,188 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:44:07,353 INFO L124 PetriNetUnfolderBase]: 3307/7080 cut-off events. [2025-02-06 18:44:07,354 INFO L125 PetriNetUnfolderBase]: For 666485/666597 co-relation queries the response was YES. [2025-02-06 18:44:07,446 INFO L83 FinitePrefix]: Finished finitePrefix Result has 84133 conditions, 7080 events. 3307/7080 cut-off events. For 666485/666597 co-relation queries the response was YES. Maximal size of possible extension queue 294. Compared 56236 event pairs, 1228 based on Foata normal form. 37/7115 useless extension candidates. Maximal degree in co-relation 83743. Up to 3234 conditions per place. [2025-02-06 18:44:07,478 INFO L140 encePairwiseOnDemand]: 25/39 looper letters, 862 selfloop transitions, 297 changer transitions 0/1176 dead transitions. [2025-02-06 18:44:07,478 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 645 places, 1176 transitions, 34608 flow [2025-02-06 18:44:07,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2025-02-06 18:44:07,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2025-02-06 18:44:07,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 345 transitions. [2025-02-06 18:44:07,479 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5203619909502263 [2025-02-06 18:44:07,479 INFO L175 Difference]: Start difference. First operand has 629 places, 947 transitions, 26432 flow. Second operand 17 states and 345 transitions. [2025-02-06 18:44:07,479 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 645 places, 1176 transitions, 34608 flow [2025-02-06 18:44:12,366 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 642 places, 1176 transitions, 34001 flow, removed 258 selfloop flow, removed 3 redundant places. [2025-02-06 18:44:12,385 INFO L231 Difference]: Finished difference. Result has 654 places, 1036 transitions, 29348 flow [2025-02-06 18:44:12,385 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=39, PETRI_DIFFERENCE_MINUEND_FLOW=25926, PETRI_DIFFERENCE_MINUEND_PLACES=626, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=947, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=210, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=706, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=29348, PETRI_PLACES=654, PETRI_TRANSITIONS=1036} [2025-02-06 18:44:12,386 INFO L279 CegarLoopForPetriNet]: 39 programPoint places, 615 predicate places. [2025-02-06 18:44:12,386 INFO L471 AbstractCegarLoop]: Abstraction has has 654 places, 1036 transitions, 29348 flow [2025-02-06 18:44:12,386 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) [2025-02-06 18:44:12,386 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:44:12,386 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 18:44:12,386 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2025-02-06 18:44:12,386 INFO L396 AbstractCegarLoop]: === Iteration 42 === Targeting t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 12 more)] === [2025-02-06 18:44:12,387 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:44:12,387 INFO L85 PathProgramCache]: Analyzing trace with hash -107686875, now seen corresponding path program 12 times [2025-02-06 18:44:12,387 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:44:12,387 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1613763489] [2025-02-06 18:44:12,387 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-02-06 18:44:12,387 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:44:12,393 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 45 statements into 11 equivalence classes. [2025-02-06 18:44:12,395 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) and asserted 14 of 45 statements. [2025-02-06 18:44:12,395 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2025-02-06 18:44:12,395 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:44:12,484 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 156 trivial. 0 not checked. [2025-02-06 18:44:12,484 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:44:12,484 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1613763489] [2025-02-06 18:44:12,484 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1613763489] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:44:12,484 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 18:44:12,485 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2025-02-06 18:44:12,485 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [776599548] [2025-02-06 18:44:12,485 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:44:12,485 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-02-06 18:44:12,485 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:44:12,485 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-02-06 18:44:12,485 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2025-02-06 18:44:12,494 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 39 [2025-02-06 18:44:12,494 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 654 places, 1036 transitions, 29348 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) [2025-02-06 18:44:12,494 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:44:12,494 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 39 [2025-02-06 18:44:12,494 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:44:16,096 INFO L124 PetriNetUnfolderBase]: 3366/7180 cut-off events. [2025-02-06 18:44:16,096 INFO L125 PetriNetUnfolderBase]: For 803032/803181 co-relation queries the response was YES. [2025-02-06 18:44:16,200 INFO L83 FinitePrefix]: Finished finitePrefix Result has 93198 conditions, 7180 events. 3366/7180 cut-off events. For 803032/803181 co-relation queries the response was YES. Maximal size of possible extension queue 306. Compared 57683 event pairs, 860 based on Foata normal form. 76/7255 useless extension candidates. Maximal degree in co-relation 92798. Up to 2968 conditions per place. [2025-02-06 18:44:16,239 INFO L140 encePairwiseOnDemand]: 25/39 looper letters, 762 selfloop transitions, 513 changer transitions 0/1287 dead transitions. [2025-02-06 18:44:16,239 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 674 places, 1287 transitions, 38769 flow [2025-02-06 18:44:16,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2025-02-06 18:44:16,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2025-02-06 18:44:16,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 414 transitions. [2025-02-06 18:44:16,240 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5054945054945055 [2025-02-06 18:44:16,240 INFO L175 Difference]: Start difference. First operand has 654 places, 1036 transitions, 29348 flow. Second operand 21 states and 414 transitions. [2025-02-06 18:44:16,240 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 674 places, 1287 transitions, 38769 flow [2025-02-06 18:44:21,542 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 672 places, 1287 transitions, 38178 flow, removed 158 selfloop flow, removed 2 redundant places. [2025-02-06 18:44:21,567 INFO L231 Difference]: Finished difference. Result has 685 places, 1105 transitions, 33419 flow [2025-02-06 18:44:21,568 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=39, PETRI_DIFFERENCE_MINUEND_FLOW=28883, PETRI_DIFFERENCE_MINUEND_PLACES=652, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1036, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=450, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=566, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=33419, PETRI_PLACES=685, PETRI_TRANSITIONS=1105} [2025-02-06 18:44:21,568 INFO L279 CegarLoopForPetriNet]: 39 programPoint places, 646 predicate places. [2025-02-06 18:44:21,568 INFO L471 AbstractCegarLoop]: Abstraction has has 685 places, 1105 transitions, 33419 flow [2025-02-06 18:44:21,569 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) [2025-02-06 18:44:21,569 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:44:21,569 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 18:44:21,569 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2025-02-06 18:44:21,569 INFO L396 AbstractCegarLoop]: === Iteration 43 === Targeting t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 12 more)] === [2025-02-06 18:44:21,569 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:44:21,570 INFO L85 PathProgramCache]: Analyzing trace with hash -2011690259, now seen corresponding path program 13 times [2025-02-06 18:44:21,570 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:44:21,570 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1923491116] [2025-02-06 18:44:21,570 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2025-02-06 18:44:21,570 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:44:21,577 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 45 statements into 1 equivalence classes. [2025-02-06 18:44:21,582 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 45 of 45 statements. [2025-02-06 18:44:21,582 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:44:21,582 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:44:21,846 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2025-02-06 18:44:21,846 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:44:21,846 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1923491116] [2025-02-06 18:44:21,847 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1923491116] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:44:21,847 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 18:44:21,847 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2025-02-06 18:44:21,847 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1817514222] [2025-02-06 18:44:21,847 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:44:21,847 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2025-02-06 18:44:21,847 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:44:21,847 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2025-02-06 18:44:21,847 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2025-02-06 18:44:21,871 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 39 [2025-02-06 18:44:21,871 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 685 places, 1105 transitions, 33419 flow. Second operand has 11 states, 11 states have (on average 13.454545454545455) internal successors, (148), 11 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 18:44:21,871 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:44:21,871 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 39 [2025-02-06 18:44:21,871 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:44:25,453 INFO L124 PetriNetUnfolderBase]: 3305/7175 cut-off events. [2025-02-06 18:44:25,454 INFO L125 PetriNetUnfolderBase]: For 914067/914168 co-relation queries the response was YES. [2025-02-06 18:44:25,564 INFO L83 FinitePrefix]: Finished finitePrefix Result has 96941 conditions, 7175 events. 3305/7175 cut-off events. For 914067/914168 co-relation queries the response was YES. Maximal size of possible extension queue 364. Compared 59278 event pairs, 773 based on Foata normal form. 44/7218 useless extension candidates. Maximal degree in co-relation 96528. Up to 4974 conditions per place. [2025-02-06 18:44:25,603 INFO L140 encePairwiseOnDemand]: 26/39 looper letters, 1087 selfloop transitions, 156 changer transitions 0/1265 dead transitions. [2025-02-06 18:44:25,604 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 697 places, 1265 transitions, 40128 flow [2025-02-06 18:44:25,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-02-06 18:44:25,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2025-02-06 18:44:25,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 264 transitions. [2025-02-06 18:44:25,605 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5207100591715976 [2025-02-06 18:44:25,605 INFO L175 Difference]: Start difference. First operand has 685 places, 1105 transitions, 33419 flow. Second operand 13 states and 264 transitions. [2025-02-06 18:44:25,605 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 697 places, 1265 transitions, 40128 flow