./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/goblint-regression/06-symbeq_05-funloop_hard2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 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_05-funloop_hard2.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 9e83a031749850377e0f1ecd2c361048b8f87f697f146600048034d31c93bd9a --- Real Ultimate output --- This is Ultimate 0.3.0-?-c00e63d-m [2025-02-06 18:42:57,389 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-06 18:42:57,432 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2025-02-06 18:42:57,436 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-06 18:42:57,436 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-06 18:42:57,459 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-06 18:42:57,463 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-06 18:42:57,463 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-06 18:42:57,463 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-06 18:42:57,463 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-06 18:42:57,463 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-06 18:42:57,463 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-06 18:42:57,463 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-06 18:42:57,463 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-06 18:42:57,464 INFO L153 SettingsManager]: * Use SBE=true [2025-02-06 18:42:57,464 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-06 18:42:57,464 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-06 18:42:57,464 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-06 18:42:57,464 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-06 18:42:57,464 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-06 18:42:57,464 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-06 18:42:57,464 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-06 18:42:57,464 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-06 18:42:57,464 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-06 18:42:57,464 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2025-02-06 18:42:57,464 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-06 18:42:57,464 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-06 18:42:57,464 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-06 18:42:57,464 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-06 18:42:57,464 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-06 18:42:57,464 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-06 18:42:57,464 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-06 18:42:57,464 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-06 18:42:57,464 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-06 18:42:57,464 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 18:42:57,464 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-06 18:42:57,464 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-06 18:42:57,465 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-06 18:42:57,465 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-06 18:42:57,465 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-06 18:42:57,465 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-06 18:42:57,465 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-06 18:42:57,465 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-06 18:42:57,465 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-06 18:42:57,465 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-06 18:42:57,465 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 -> 9e83a031749850377e0f1ecd2c361048b8f87f697f146600048034d31c93bd9a [2025-02-06 18:42:57,742 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-06 18:42:57,747 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-06 18:42:57,748 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-06 18:42:57,749 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-06 18:42:57,749 INFO L274 PluginConnector]: CDTParser initialized [2025-02-06 18:42:57,750 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/06-symbeq_05-funloop_hard2.i [2025-02-06 18:42:59,035 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/cdb534269/cfb4cda5879641368eb07d7b4a07fedc/FLAGddbbf366b [2025-02-06 18:42:59,367 INFO L384 CDTParser]: Found 1 translation units. [2025-02-06 18:42:59,370 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/goblint-regression/06-symbeq_05-funloop_hard2.i [2025-02-06 18:42:59,385 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/cdb534269/cfb4cda5879641368eb07d7b4a07fedc/FLAGddbbf366b [2025-02-06 18:42:59,401 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/cdb534269/cfb4cda5879641368eb07d7b4a07fedc [2025-02-06 18:42:59,404 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-06 18:42:59,405 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-06 18:42:59,407 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-06 18:42:59,407 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-06 18:42:59,410 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-06 18:42:59,410 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 06:42:59" (1/1) ... [2025-02-06 18:42:59,411 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7599282d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:42:59, skipping insertion in model container [2025-02-06 18:42:59,411 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 06:42:59" (1/1) ... [2025-02-06 18:42:59,442 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-06 18:42:59,689 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 18:42:59,715 INFO L200 MainTranslator]: Completed pre-run [2025-02-06 18:42:59,739 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 18:42:59,776 INFO L204 MainTranslator]: Completed translation [2025-02-06 18:42:59,777 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:42:59 WrapperNode [2025-02-06 18:42:59,777 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-06 18:42:59,778 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-06 18:42:59,778 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-06 18:42:59,778 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-06 18:42:59,782 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 18:42:59,791 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 18:42:59,806 INFO L138 Inliner]: procedures = 263, calls = 74, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 146 [2025-02-06 18:42:59,806 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-06 18:42:59,807 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-06 18:42:59,807 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-06 18:42:59,807 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-06 18:42:59,813 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 18:42:59,813 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 18:42:59,815 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 18:42:59,831 INFO L175 MemorySlicer]: Split 66 memory accesses to 1 slices as follows [66]. 100 percent of accesses are in the largest equivalence class. The 60 initializations are split as follows [60]. The 3 writes are split as follows [3]. [2025-02-06 18:42:59,831 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 18:42:59,831 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 18:42:59,836 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 18:42:59,837 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 18:42:59,838 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 18:42:59,838 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 18:42:59,839 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-06 18:42:59,840 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-06 18:42:59,840 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-06 18:42:59,840 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-06 18:42:59,841 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 18:42:59,844 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 18:42:59,853 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 18:42:59,865 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 18:42:59,868 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 18:42:59,882 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2025-02-06 18:42:59,882 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-02-06 18:42:59,883 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-02-06 18:42:59,883 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2025-02-06 18:42:59,883 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-06 18:42:59,883 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2025-02-06 18:42:59,883 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2025-02-06 18:42:59,883 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-06 18:42:59,883 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-06 18:42:59,883 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-06 18:42:59,884 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 18:43:00,001 INFO L257 CfgBuilder]: Building ICFG [2025-02-06 18:43:00,003 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-06 18:43:00,192 INFO L304 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-02-06 18:43:00,193 INFO L308 CfgBuilder]: Performing block encoding [2025-02-06 18:43:00,474 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-06 18:43:00,475 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-06 18:43:00,475 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 06:43:00 BoogieIcfgContainer [2025-02-06 18:43:00,475 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-06 18:43:00,477 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-06 18:43:00,477 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-06 18:43:00,480 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-06 18:43:00,480 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.02 06:42:59" (1/3) ... [2025-02-06 18:43:00,482 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d9a051f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 06:43:00, skipping insertion in model container [2025-02-06 18:43:00,482 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 18:43:00,483 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d9a051f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 06:43:00, skipping insertion in model container [2025-02-06 18:43:00,483 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 06:43:00" (3/3) ... [2025-02-06 18:43:00,483 INFO L128 eAbstractionObserver]: Analyzing ICFG 06-symbeq_05-funloop_hard2.i [2025-02-06 18:43:00,494 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-06 18:43:00,495 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 06-symbeq_05-funloop_hard2.i that has 2 procedures, 45 locations, 1 initial locations, 3 loop locations, and 12 error locations. [2025-02-06 18:43:00,496 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-02-06 18:43:00,532 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-02-06 18:43:00,559 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 48 places, 47 transitions, 98 flow [2025-02-06 18:43:00,589 INFO L124 PetriNetUnfolderBase]: 3/46 cut-off events. [2025-02-06 18:43:00,590 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-06 18:43:00,592 INFO L83 FinitePrefix]: Finished finitePrefix Result has 50 conditions, 46 events. 3/46 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 122 event pairs, 0 based on Foata normal form. 0/31 useless extension candidates. Maximal degree in co-relation 38. Up to 2 conditions per place. [2025-02-06 18:43:00,592 INFO L82 GeneralOperation]: Start removeDead. Operand has 48 places, 47 transitions, 98 flow [2025-02-06 18:43:00,594 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 47 places, 46 transitions, 95 flow [2025-02-06 18:43:00,598 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-06 18:43:00,609 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;@35bef340, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-06 18:43:00,610 INFO L334 AbstractCegarLoop]: Starting to check reachability of 17 error locations. [2025-02-06 18:43:00,612 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-02-06 18:43:00,612 INFO L124 PetriNetUnfolderBase]: 1/5 cut-off events. [2025-02-06 18:43:00,612 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-06 18:43:00,612 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:43:00,613 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2025-02-06 18:43:00,613 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2025-02-06 18:43:00,616 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:43:00,616 INFO L85 PathProgramCache]: Analyzing trace with hash 363096, now seen corresponding path program 1 times [2025-02-06 18:43:00,622 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:43:00,622 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [518059393] [2025-02-06 18:43:00,623 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:43:00,623 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:43:00,684 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-06 18:43:00,706 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-06 18:43:00,711 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:43:00,711 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:43:00,850 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 18:43:00,850 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:43:00,850 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [518059393] [2025-02-06 18:43:00,851 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [518059393] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:43:00,851 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 18:43:00,851 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-06 18:43:00,852 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [634829686] [2025-02-06 18:43:00,852 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:43:00,856 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-06 18:43:00,858 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:43:00,873 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-06 18:43:00,874 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-06 18:43:00,886 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 47 [2025-02-06 18:43:00,887 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 46 transitions, 95 flow. Second operand has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 0 states have call successors, (0), 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 18:43:00,888 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:43:00,888 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 47 [2025-02-06 18:43:00,888 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:43:01,000 INFO L124 PetriNetUnfolderBase]: 119/366 cut-off events. [2025-02-06 18:43:01,000 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-06 18:43:01,001 INFO L83 FinitePrefix]: Finished finitePrefix Result has 614 conditions, 366 events. 119/366 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 1922 event pairs, 96 based on Foata normal form. 1/308 useless extension candidates. Maximal degree in co-relation 589. Up to 242 conditions per place. [2025-02-06 18:43:01,003 INFO L140 encePairwiseOnDemand]: 41/47 looper letters, 28 selfloop transitions, 3 changer transitions 0/48 dead transitions. [2025-02-06 18:43:01,003 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 48 transitions, 161 flow [2025-02-06 18:43:01,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-06 18:43:01,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-02-06 18:43:01,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 106 transitions. [2025-02-06 18:43:01,010 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5638297872340425 [2025-02-06 18:43:01,011 INFO L175 Difference]: Start difference. First operand has 47 places, 46 transitions, 95 flow. Second operand 4 states and 106 transitions. [2025-02-06 18:43:01,012 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 48 transitions, 161 flow [2025-02-06 18:43:01,014 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 48 transitions, 160 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-02-06 18:43:01,015 INFO L231 Difference]: Finished difference. Result has 51 places, 48 transitions, 118 flow [2025-02-06 18:43:01,017 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=94, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=118, PETRI_PLACES=51, PETRI_TRANSITIONS=48} [2025-02-06 18:43:01,019 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, 4 predicate places. [2025-02-06 18:43:01,019 INFO L471 AbstractCegarLoop]: Abstraction has has 51 places, 48 transitions, 118 flow [2025-02-06 18:43:01,019 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 0 states have call successors, (0), 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 18:43:01,019 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:43:01,019 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1] [2025-02-06 18:43:01,019 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-02-06 18:43:01,019 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2025-02-06 18:43:01,020 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:43:01,020 INFO L85 PathProgramCache]: Analyzing trace with hash -2067598711, now seen corresponding path program 1 times [2025-02-06 18:43:01,020 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:43:01,020 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [234669729] [2025-02-06 18:43:01,020 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:43:01,020 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:43:01,026 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-02-06 18:43:01,069 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-02-06 18:43:01,069 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:43:01,069 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:43:01,141 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 18:43:01,141 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:43:01,141 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [234669729] [2025-02-06 18:43:01,142 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [234669729] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 18:43:01,142 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1845505036] [2025-02-06 18:43:01,142 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:43:01,142 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 18:43:01,142 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 18:43:01,147 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 18:43:01,149 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 18:43:01,191 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-02-06 18:43:01,210 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-02-06 18:43:01,210 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:43:01,210 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:43:01,212 INFO L256 TraceCheckSpWp]: Trace formula consists of 154 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-02-06 18:43:01,214 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 18:43:01,253 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 18:43:01,253 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 18:43:01,253 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1845505036] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:43:01,253 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-06 18:43:01,253 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2025-02-06 18:43:01,254 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1281228467] [2025-02-06 18:43:01,254 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:43:01,254 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-06 18:43:01,254 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:43:01,254 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-06 18:43:01,254 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2025-02-06 18:43:01,264 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 47 [2025-02-06 18:43:01,265 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 48 transitions, 118 flow. Second operand has 6 states, 6 states have (on average 18.833333333333332) internal successors, (113), 6 states have internal predecessors, (113), 0 states have call successors, (0), 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 18:43:01,265 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:43:01,265 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 47 [2025-02-06 18:43:01,265 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:43:01,414 INFO L124 PetriNetUnfolderBase]: 119/365 cut-off events. [2025-02-06 18:43:01,414 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2025-02-06 18:43:01,415 INFO L83 FinitePrefix]: Finished finitePrefix Result has 623 conditions, 365 events. 119/365 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 1913 event pairs, 96 based on Foata normal form. 1/307 useless extension candidates. Maximal degree in co-relation 606. Up to 237 conditions per place. [2025-02-06 18:43:01,418 INFO L140 encePairwiseOnDemand]: 42/47 looper letters, 24 selfloop transitions, 6 changer transitions 0/47 dead transitions. [2025-02-06 18:43:01,418 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 47 transitions, 174 flow [2025-02-06 18:43:01,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-06 18:43:01,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-02-06 18:43:01,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 139 transitions. [2025-02-06 18:43:01,420 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4929078014184397 [2025-02-06 18:43:01,420 INFO L175 Difference]: Start difference. First operand has 51 places, 48 transitions, 118 flow. Second operand 6 states and 139 transitions. [2025-02-06 18:43:01,420 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 47 transitions, 174 flow [2025-02-06 18:43:01,420 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 47 transitions, 172 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-02-06 18:43:01,421 INFO L231 Difference]: Finished difference. Result has 54 places, 47 transitions, 124 flow [2025-02-06 18:43:01,421 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=112, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=124, PETRI_PLACES=54, PETRI_TRANSITIONS=47} [2025-02-06 18:43:01,422 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, 7 predicate places. [2025-02-06 18:43:01,422 INFO L471 AbstractCegarLoop]: Abstraction has has 54 places, 47 transitions, 124 flow [2025-02-06 18:43:01,422 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 18.833333333333332) internal successors, (113), 6 states have internal predecessors, (113), 0 states have call successors, (0), 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 18:43:01,422 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:43:01,422 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1] [2025-02-06 18:43:01,431 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-02-06 18:43:01,627 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 18:43:01,627 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2025-02-06 18:43:01,628 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:43:01,629 INFO L85 PathProgramCache]: Analyzing trace with hash 328949710, now seen corresponding path program 1 times [2025-02-06 18:43:01,629 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:43:01,629 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [174802280] [2025-02-06 18:43:01,629 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:43:01,629 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:43:01,638 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-02-06 18:43:01,648 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-02-06 18:43:01,649 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:43:01,649 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:43:01,703 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 18:43:01,703 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:43:01,703 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [174802280] [2025-02-06 18:43:01,703 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [174802280] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:43:01,703 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 18:43:01,703 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-06 18:43:01,704 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1095342546] [2025-02-06 18:43:01,704 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:43:01,704 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-06 18:43:01,704 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:43:01,704 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 18:43:01,704 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 18:43:01,710 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 47 [2025-02-06 18:43:01,710 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 47 transitions, 124 flow. Second operand has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 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 18:43:01,710 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:43:01,711 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 47 [2025-02-06 18:43:01,711 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:43:01,769 INFO L124 PetriNetUnfolderBase]: 119/364 cut-off events. [2025-02-06 18:43:01,770 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2025-02-06 18:43:01,770 INFO L83 FinitePrefix]: Finished finitePrefix Result has 625 conditions, 364 events. 119/364 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 1910 event pairs, 96 based on Foata normal form. 1/307 useless extension candidates. Maximal degree in co-relation 602. Up to 240 conditions per place. [2025-02-06 18:43:01,771 INFO L140 encePairwiseOnDemand]: 44/47 looper letters, 25 selfloop transitions, 4 changer transitions 0/46 dead transitions. [2025-02-06 18:43:01,771 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 46 transitions, 178 flow [2025-02-06 18:43:01,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 18:43:01,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-06 18:43:01,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 82 transitions. [2025-02-06 18:43:01,772 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5815602836879432 [2025-02-06 18:43:01,772 INFO L175 Difference]: Start difference. First operand has 54 places, 47 transitions, 124 flow. Second operand 3 states and 82 transitions. [2025-02-06 18:43:01,772 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 46 transitions, 178 flow [2025-02-06 18:43:01,773 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 46 transitions, 156 flow, removed 3 selfloop flow, removed 6 redundant places. [2025-02-06 18:43:01,773 INFO L231 Difference]: Finished difference. Result has 49 places, 46 transitions, 106 flow [2025-02-06 18:43:01,773 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=98, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=106, PETRI_PLACES=49, PETRI_TRANSITIONS=46} [2025-02-06 18:43:01,774 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, 2 predicate places. [2025-02-06 18:43:01,774 INFO L471 AbstractCegarLoop]: Abstraction has has 49 places, 46 transitions, 106 flow [2025-02-06 18:43:01,774 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 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 18:43:01,774 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:43:01,774 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 18:43:01,774 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-02-06 18:43:01,774 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2025-02-06 18:43:01,775 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:43:01,775 INFO L85 PathProgramCache]: Analyzing trace with hash -2104105310, now seen corresponding path program 1 times [2025-02-06 18:43:01,775 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:43:01,775 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [97593659] [2025-02-06 18:43:01,775 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:43:01,775 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:43:01,781 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 11 statements into 1 equivalence classes. [2025-02-06 18:43:01,784 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 11 of 11 statements. [2025-02-06 18:43:01,784 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:43:01,784 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:43:01,826 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 18:43:01,826 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:43:01,826 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [97593659] [2025-02-06 18:43:01,826 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [97593659] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 18:43:01,826 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1676327059] [2025-02-06 18:43:01,826 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:43:01,827 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 18:43:01,827 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 18:43:01,828 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 18:43:01,830 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 18:43:01,864 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 11 statements into 1 equivalence classes. [2025-02-06 18:43:01,902 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 11 of 11 statements. [2025-02-06 18:43:01,902 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:43:01,902 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:43:01,903 INFO L256 TraceCheckSpWp]: Trace formula consists of 177 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-02-06 18:43:01,903 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 18:43:01,910 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-02-06 18:43:01,910 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 18:43:01,910 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1676327059] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:43:01,910 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-06 18:43:01,910 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2025-02-06 18:43:01,910 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [464227606] [2025-02-06 18:43:01,910 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:43:01,910 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-06 18:43:01,910 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:43:01,911 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 18:43:01,911 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-02-06 18:43:01,911 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 47 [2025-02-06 18:43:01,911 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 46 transitions, 106 flow. Second operand has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 18:43:01,911 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:43:01,911 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 47 [2025-02-06 18:43:01,911 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:43:01,985 INFO L124 PetriNetUnfolderBase]: 191/543 cut-off events. [2025-02-06 18:43:01,985 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2025-02-06 18:43:01,986 INFO L83 FinitePrefix]: Finished finitePrefix Result has 939 conditions, 543 events. 191/543 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 2761 event pairs, 107 based on Foata normal form. 0/460 useless extension candidates. Maximal degree in co-relation 918. Up to 260 conditions per place. [2025-02-06 18:43:01,988 INFO L140 encePairwiseOnDemand]: 44/47 looper letters, 44 selfloop transitions, 2 changer transitions 0/62 dead transitions. [2025-02-06 18:43:01,988 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 62 transitions, 230 flow [2025-02-06 18:43:01,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 18:43:01,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-06 18:43:01,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 102 transitions. [2025-02-06 18:43:01,993 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.723404255319149 [2025-02-06 18:43:01,993 INFO L175 Difference]: Start difference. First operand has 49 places, 46 transitions, 106 flow. Second operand 3 states and 102 transitions. [2025-02-06 18:43:01,993 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 62 transitions, 230 flow [2025-02-06 18:43:01,993 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 62 transitions, 222 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-02-06 18:43:01,994 INFO L231 Difference]: Finished difference. Result has 50 places, 47 transitions, 110 flow [2025-02-06 18:43:01,994 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=98, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=110, PETRI_PLACES=50, PETRI_TRANSITIONS=47} [2025-02-06 18:43:01,994 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, 3 predicate places. [2025-02-06 18:43:01,995 INFO L471 AbstractCegarLoop]: Abstraction has has 50 places, 47 transitions, 110 flow [2025-02-06 18:43:01,995 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 18:43:01,995 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:43:01,995 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 18:43:02,001 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 18:43:02,195 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 18:43:02,195 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2025-02-06 18:43:02,196 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:43:02,196 INFO L85 PathProgramCache]: Analyzing trace with hash -2104065503, now seen corresponding path program 1 times [2025-02-06 18:43:02,197 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:43:02,199 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [318062582] [2025-02-06 18:43:02,199 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:43:02,199 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:43:02,205 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 11 statements into 1 equivalence classes. [2025-02-06 18:43:02,208 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 11 of 11 statements. [2025-02-06 18:43:02,208 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:43:02,208 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:43:02,255 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 18:43:02,255 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:43:02,255 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [318062582] [2025-02-06 18:43:02,255 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [318062582] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 18:43:02,255 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2022520768] [2025-02-06 18:43:02,255 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:43:02,255 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 18:43:02,255 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 18:43:02,257 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 18:43:02,264 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 18:43:02,300 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 11 statements into 1 equivalence classes. [2025-02-06 18:43:02,319 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 11 of 11 statements. [2025-02-06 18:43:02,319 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:43:02,319 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:43:02,320 INFO L256 TraceCheckSpWp]: Trace formula consists of 185 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-02-06 18:43:02,321 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 18:43:02,335 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 18:43:02,335 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 18:43:02,360 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 18:43:02,360 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2022520768] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-06 18:43:02,360 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-06 18:43:02,360 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 9 [2025-02-06 18:43:02,360 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [163256963] [2025-02-06 18:43:02,360 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-06 18:43:02,360 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-02-06 18:43:02,360 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:43:02,361 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-02-06 18:43:02,361 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2025-02-06 18:43:02,369 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 47 [2025-02-06 18:43:02,370 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 47 transitions, 110 flow. Second operand has 10 states, 10 states have (on average 19.6) internal successors, (196), 10 states have internal predecessors, (196), 0 states have call successors, (0), 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 18:43:02,370 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:43:02,370 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 47 [2025-02-06 18:43:02,370 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:43:02,494 INFO L124 PetriNetUnfolderBase]: 182/561 cut-off events. [2025-02-06 18:43:02,494 INFO L125 PetriNetUnfolderBase]: For 46/46 co-relation queries the response was YES. [2025-02-06 18:43:02,495 INFO L83 FinitePrefix]: Finished finitePrefix Result has 985 conditions, 561 events. 182/561 cut-off events. For 46/46 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 2971 event pairs, 152 based on Foata normal form. 0/476 useless extension candidates. Maximal degree in co-relation 952. Up to 364 conditions per place. [2025-02-06 18:43:02,497 INFO L140 encePairwiseOnDemand]: 43/47 looper letters, 26 selfloop transitions, 7 changer transitions 0/50 dead transitions. [2025-02-06 18:43:02,497 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 50 transitions, 185 flow [2025-02-06 18:43:02,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-02-06 18:43:02,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2025-02-06 18:43:02,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 160 transitions. [2025-02-06 18:43:02,498 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.48632218844984804 [2025-02-06 18:43:02,498 INFO L175 Difference]: Start difference. First operand has 50 places, 47 transitions, 110 flow. Second operand 7 states and 160 transitions. [2025-02-06 18:43:02,498 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 50 transitions, 185 flow [2025-02-06 18:43:02,499 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 50 transitions, 183 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-02-06 18:43:02,499 INFO L231 Difference]: Finished difference. Result has 57 places, 50 transitions, 142 flow [2025-02-06 18:43:02,499 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=108, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=142, PETRI_PLACES=57, PETRI_TRANSITIONS=50} [2025-02-06 18:43:02,500 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, 10 predicate places. [2025-02-06 18:43:02,500 INFO L471 AbstractCegarLoop]: Abstraction has has 57 places, 50 transitions, 142 flow [2025-02-06 18:43:02,500 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 19.6) internal successors, (196), 10 states have internal predecessors, (196), 0 states have call successors, (0), 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 18:43:02,500 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:43:02,500 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 18:43:02,510 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2025-02-06 18:43:02,700 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 18:43:02,701 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2025-02-06 18:43:02,701 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:43:02,702 INFO L85 PathProgramCache]: Analyzing trace with hash -539531135, now seen corresponding path program 2 times [2025-02-06 18:43:02,703 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:43:02,703 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [106895635] [2025-02-06 18:43:02,703 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-06 18:43:02,703 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:43:02,714 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 17 statements into 2 equivalence classes. [2025-02-06 18:43:02,721 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 8 of 17 statements. [2025-02-06 18:43:02,721 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-06 18:43:02,721 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:43:02,918 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 18:43:02,918 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:43:02,918 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [106895635] [2025-02-06 18:43:02,918 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [106895635] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:43:02,918 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 18:43:02,918 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-06 18:43:02,918 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2108942019] [2025-02-06 18:43:02,919 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:43:02,919 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-06 18:43:02,919 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:43:02,919 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-06 18:43:02,919 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-02-06 18:43:02,931 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 47 [2025-02-06 18:43:02,931 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 50 transitions, 142 flow. Second operand has 6 states, 6 states have (on average 18.666666666666668) internal successors, (112), 6 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 18:43:02,931 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:43:02,932 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 47 [2025-02-06 18:43:02,932 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:43:03,191 INFO L124 PetriNetUnfolderBase]: 272/697 cut-off events. [2025-02-06 18:43:03,192 INFO L125 PetriNetUnfolderBase]: For 49/49 co-relation queries the response was YES. [2025-02-06 18:43:03,193 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1304 conditions, 697 events. 272/697 cut-off events. For 49/49 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 3657 event pairs, 62 based on Foata normal form. 14/604 useless extension candidates. Maximal degree in co-relation 1265. Up to 421 conditions per place. [2025-02-06 18:43:03,197 INFO L140 encePairwiseOnDemand]: 39/47 looper letters, 66 selfloop transitions, 11 changer transitions 0/91 dead transitions. [2025-02-06 18:43:03,197 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 91 transitions, 380 flow [2025-02-06 18:43:03,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-02-06 18:43:03,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2025-02-06 18:43:03,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 192 transitions. [2025-02-06 18:43:03,201 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5835866261398176 [2025-02-06 18:43:03,201 INFO L175 Difference]: Start difference. First operand has 57 places, 50 transitions, 142 flow. Second operand 7 states and 192 transitions. [2025-02-06 18:43:03,201 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 91 transitions, 380 flow [2025-02-06 18:43:03,202 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 91 transitions, 376 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-02-06 18:43:03,203 INFO L231 Difference]: Finished difference. Result has 67 places, 61 transitions, 224 flow [2025-02-06 18:43:03,203 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=138, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=50, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=224, PETRI_PLACES=67, PETRI_TRANSITIONS=61} [2025-02-06 18:43:03,204 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, 20 predicate places. [2025-02-06 18:43:03,204 INFO L471 AbstractCegarLoop]: Abstraction has has 67 places, 61 transitions, 224 flow [2025-02-06 18:43:03,204 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 18.666666666666668) internal successors, (112), 6 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 18:43:03,204 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:43:03,205 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 18:43:03,205 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-02-06 18:43:03,205 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2025-02-06 18:43:03,205 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:43:03,205 INFO L85 PathProgramCache]: Analyzing trace with hash -512040198, now seen corresponding path program 1 times [2025-02-06 18:43:03,206 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:43:03,206 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [341669158] [2025-02-06 18:43:03,206 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:43:03,206 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:43:03,214 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 17 statements into 1 equivalence classes. [2025-02-06 18:43:03,220 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 17 of 17 statements. [2025-02-06 18:43:03,221 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:43:03,221 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:43:03,323 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 18:43:03,323 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:43:03,323 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [341669158] [2025-02-06 18:43:03,324 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [341669158] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 18:43:03,324 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1584135996] [2025-02-06 18:43:03,324 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:43:03,324 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 18:43:03,324 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 18:43:03,331 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 18:43:03,332 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 18:43:03,379 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 17 statements into 1 equivalence classes. [2025-02-06 18:43:03,408 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 17 of 17 statements. [2025-02-06 18:43:03,409 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:43:03,409 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:43:03,410 INFO L256 TraceCheckSpWp]: Trace formula consists of 211 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-02-06 18:43:03,411 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 18:43:03,456 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 18:43:03,456 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 18:43:03,541 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 18:43:03,541 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1584135996] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-06 18:43:03,542 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-06 18:43:03,542 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 17 [2025-02-06 18:43:03,542 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [47340467] [2025-02-06 18:43:03,542 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-06 18:43:03,542 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2025-02-06 18:43:03,543 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:43:03,543 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2025-02-06 18:43:03,543 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2025-02-06 18:43:03,557 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 47 [2025-02-06 18:43:03,557 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 61 transitions, 224 flow. Second operand has 18 states, 18 states have (on average 19.333333333333332) internal successors, (348), 18 states have internal predecessors, (348), 0 states have call successors, (0), 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 18:43:03,558 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:43:03,558 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 47 [2025-02-06 18:43:03,558 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:43:03,834 INFO L124 PetriNetUnfolderBase]: 217/652 cut-off events. [2025-02-06 18:43:03,834 INFO L125 PetriNetUnfolderBase]: For 259/270 co-relation queries the response was YES. [2025-02-06 18:43:03,836 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1402 conditions, 652 events. 217/652 cut-off events. For 259/270 co-relation queries the response was YES. Maximal size of possible extension queue 40. Compared 3504 event pairs, 152 based on Foata normal form. 5/585 useless extension candidates. Maximal degree in co-relation 1321. Up to 432 conditions per place. [2025-02-06 18:43:03,838 INFO L140 encePairwiseOnDemand]: 43/47 looper letters, 36 selfloop transitions, 15 changer transitions 0/69 dead transitions. [2025-02-06 18:43:03,838 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 81 places, 69 transitions, 374 flow [2025-02-06 18:43:03,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2025-02-06 18:43:03,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2025-02-06 18:43:03,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 314 transitions. [2025-02-06 18:43:03,840 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4453900709219858 [2025-02-06 18:43:03,840 INFO L175 Difference]: Start difference. First operand has 67 places, 61 transitions, 224 flow. Second operand 15 states and 314 transitions. [2025-02-06 18:43:03,840 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 81 places, 69 transitions, 374 flow [2025-02-06 18:43:03,843 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 81 places, 69 transitions, 374 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-02-06 18:43:03,844 INFO L231 Difference]: Finished difference. Result has 85 places, 69 transitions, 321 flow [2025-02-06 18:43:03,845 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=224, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=61, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=53, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=321, PETRI_PLACES=85, PETRI_TRANSITIONS=69} [2025-02-06 18:43:03,845 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, 38 predicate places. [2025-02-06 18:43:03,845 INFO L471 AbstractCegarLoop]: Abstraction has has 85 places, 69 transitions, 321 flow [2025-02-06 18:43:03,846 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 19.333333333333332) internal successors, (348), 18 states have internal predecessors, (348), 0 states have call successors, (0), 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 18:43:03,846 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:43:03,846 INFO L206 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 18:43:03,854 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2025-02-06 18:43:04,046 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,SelfDestructingSolverStorable6 [2025-02-06 18:43:04,047 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2025-02-06 18:43:04,047 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:43:04,047 INFO L85 PathProgramCache]: Analyzing trace with hash -1534601286, now seen corresponding path program 2 times [2025-02-06 18:43:04,047 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:43:04,047 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1011540916] [2025-02-06 18:43:04,047 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-06 18:43:04,047 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:43:04,063 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 29 statements into 2 equivalence classes. [2025-02-06 18:43:04,072 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 8 of 29 statements. [2025-02-06 18:43:04,073 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-06 18:43:04,074 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:43:04,290 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 18:43:04,290 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:43:04,290 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1011540916] [2025-02-06 18:43:04,290 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1011540916] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:43:04,290 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 18:43:04,290 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-06 18:43:04,290 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [687174524] [2025-02-06 18:43:04,290 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:43:04,291 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-06 18:43:04,291 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:43:04,291 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-06 18:43:04,291 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-02-06 18:43:04,302 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 47 [2025-02-06 18:43:04,303 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 85 places, 69 transitions, 321 flow. Second operand has 6 states, 6 states have (on average 19.666666666666668) internal successors, (118), 6 states have internal predecessors, (118), 0 states have call successors, (0), 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 18:43:04,303 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:43:04,303 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 47 [2025-02-06 18:43:04,306 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:43:04,555 INFO L124 PetriNetUnfolderBase]: 270/750 cut-off events. [2025-02-06 18:43:04,555 INFO L125 PetriNetUnfolderBase]: For 345/363 co-relation queries the response was YES. [2025-02-06 18:43:04,557 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1674 conditions, 750 events. 270/750 cut-off events. For 345/363 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 4203 event pairs, 93 based on Foata normal form. 44/734 useless extension candidates. Maximal degree in co-relation 1568. Up to 478 conditions per place. [2025-02-06 18:43:04,559 INFO L140 encePairwiseOnDemand]: 38/47 looper letters, 74 selfloop transitions, 14 changer transitions 0/104 dead transitions. [2025-02-06 18:43:04,559 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 91 places, 104 transitions, 635 flow [2025-02-06 18:43:04,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-02-06 18:43:04,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2025-02-06 18:43:04,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 198 transitions. [2025-02-06 18:43:04,561 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.601823708206687 [2025-02-06 18:43:04,561 INFO L175 Difference]: Start difference. First operand has 85 places, 69 transitions, 321 flow. Second operand 7 states and 198 transitions. [2025-02-06 18:43:04,561 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 91 places, 104 transitions, 635 flow [2025-02-06 18:43:04,563 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 87 places, 104 transitions, 625 flow, removed 1 selfloop flow, removed 4 redundant places. [2025-02-06 18:43:04,564 INFO L231 Difference]: Finished difference. Result has 92 places, 77 transitions, 409 flow [2025-02-06 18:43:04,570 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=311, PETRI_DIFFERENCE_MINUEND_PLACES=81, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=69, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=58, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=409, PETRI_PLACES=92, PETRI_TRANSITIONS=77} [2025-02-06 18:43:04,571 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, 45 predicate places. [2025-02-06 18:43:04,571 INFO L471 AbstractCegarLoop]: Abstraction has has 92 places, 77 transitions, 409 flow [2025-02-06 18:43:04,571 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 19.666666666666668) internal successors, (118), 6 states have internal predecessors, (118), 0 states have call successors, (0), 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 18:43:04,572 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:43:04,572 INFO L206 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 18:43:04,572 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-02-06 18:43:04,572 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2025-02-06 18:43:04,572 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:43:04,572 INFO L85 PathProgramCache]: Analyzing trace with hash -1180218370, now seen corresponding path program 1 times [2025-02-06 18:43:04,572 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:43:04,572 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1270050861] [2025-02-06 18:43:04,572 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:43:04,572 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:43:04,584 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 30 statements into 1 equivalence classes. [2025-02-06 18:43:04,598 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 30 of 30 statements. [2025-02-06 18:43:04,603 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:43:04,603 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:43:04,907 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 18:43:04,907 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:43:04,907 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1270050861] [2025-02-06 18:43:04,907 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1270050861] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 18:43:04,907 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1265254782] [2025-02-06 18:43:04,907 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:43:04,908 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 18:43:04,908 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 18:43:04,913 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 18:43:04,914 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 18:43:04,954 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 30 statements into 1 equivalence classes. [2025-02-06 18:43:04,978 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 30 of 30 statements. [2025-02-06 18:43:04,978 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:43:04,978 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:43:04,979 INFO L256 TraceCheckSpWp]: Trace formula consists of 252 conjuncts, 16 conjuncts are in the unsatisfiable core [2025-02-06 18:43:04,980 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 18:43:05,043 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 18:43:05,043 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 18:43:05,439 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 18:43:05,439 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1265254782] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-06 18:43:05,439 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-06 18:43:05,439 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16, 16] total 22 [2025-02-06 18:43:05,440 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1075139892] [2025-02-06 18:43:05,440 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-06 18:43:05,440 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2025-02-06 18:43:05,440 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:43:05,441 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2025-02-06 18:43:05,441 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2025-02-06 18:43:05,463 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 47 [2025-02-06 18:43:05,463 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 77 transitions, 409 flow. Second operand has 23 states, 23 states have (on average 19.304347826086957) internal successors, (444), 23 states have internal predecessors, (444), 0 states have call successors, (0), 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 18:43:05,464 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:43:05,464 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 47 [2025-02-06 18:43:05,464 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:43:05,836 INFO L124 PetriNetUnfolderBase]: 228/701 cut-off events. [2025-02-06 18:43:05,836 INFO L125 PetriNetUnfolderBase]: For 565/594 co-relation queries the response was YES. [2025-02-06 18:43:05,838 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1775 conditions, 701 events. 228/701 cut-off events. For 565/594 co-relation queries the response was YES. Maximal size of possible extension queue 50. Compared 3914 event pairs, 116 based on Foata normal form. 4/644 useless extension candidates. Maximal degree in co-relation 1631. Up to 453 conditions per place. [2025-02-06 18:43:05,841 INFO L140 encePairwiseOnDemand]: 43/47 looper letters, 44 selfloop transitions, 21 changer transitions 0/83 dead transitions. [2025-02-06 18:43:05,841 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 112 places, 83 transitions, 593 flow [2025-02-06 18:43:05,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2025-02-06 18:43:05,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2025-02-06 18:43:05,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 427 transitions. [2025-02-06 18:43:05,843 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4326241134751773 [2025-02-06 18:43:05,843 INFO L175 Difference]: Start difference. First operand has 92 places, 77 transitions, 409 flow. Second operand 21 states and 427 transitions. [2025-02-06 18:43:05,843 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 112 places, 83 transitions, 593 flow [2025-02-06 18:43:05,846 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 111 places, 83 transitions, 583 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-02-06 18:43:05,847 INFO L231 Difference]: Finished difference. Result has 114 places, 83 transitions, 510 flow [2025-02-06 18:43:05,848 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=399, PETRI_DIFFERENCE_MINUEND_PLACES=91, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=77, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=61, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=510, PETRI_PLACES=114, PETRI_TRANSITIONS=83} [2025-02-06 18:43:05,851 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, 67 predicate places. [2025-02-06 18:43:05,851 INFO L471 AbstractCegarLoop]: Abstraction has has 114 places, 83 transitions, 510 flow [2025-02-06 18:43:05,851 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 19.304347826086957) internal successors, (444), 23 states have internal predecessors, (444), 0 states have call successors, (0), 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 18:43:05,851 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:43:05,852 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 18:43:05,859 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 18:43:06,052 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 18:43:06,053 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2025-02-06 18:43:06,053 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:43:06,053 INFO L85 PathProgramCache]: Analyzing trace with hash 2035624845, now seen corresponding path program 2 times [2025-02-06 18:43:06,053 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:43:06,053 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1327555797] [2025-02-06 18:43:06,054 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-06 18:43:06,054 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:43:06,072 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 39 statements into 2 equivalence classes. [2025-02-06 18:43:06,079 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 9 of 39 statements. [2025-02-06 18:43:06,079 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-06 18:43:06,080 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:43:06,173 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 18:43:06,173 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:43:06,173 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1327555797] [2025-02-06 18:43:06,173 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1327555797] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:43:06,173 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 18:43:06,173 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-06 18:43:06,173 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1785118773] [2025-02-06 18:43:06,174 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:43:06,174 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-06 18:43:06,174 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:43:06,174 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-06 18:43:06,174 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-02-06 18:43:06,181 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 47 [2025-02-06 18:43:06,181 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 114 places, 83 transitions, 510 flow. Second operand has 6 states, 6 states have (on average 18.666666666666668) internal successors, (112), 6 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 18:43:06,182 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:43:06,182 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 47 [2025-02-06 18:43:06,182 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:43:06,392 INFO L124 PetriNetUnfolderBase]: 271/743 cut-off events. [2025-02-06 18:43:06,392 INFO L125 PetriNetUnfolderBase]: For 680/707 co-relation queries the response was YES. [2025-02-06 18:43:06,394 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1946 conditions, 743 events. 271/743 cut-off events. For 680/707 co-relation queries the response was YES. Maximal size of possible extension queue 49. Compared 4015 event pairs, 89 based on Foata normal form. 15/692 useless extension candidates. Maximal degree in co-relation 1774. Up to 490 conditions per place. [2025-02-06 18:43:06,397 INFO L140 encePairwiseOnDemand]: 40/47 looper letters, 77 selfloop transitions, 13 changer transitions 0/104 dead transitions. [2025-02-06 18:43:06,397 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 120 places, 104 transitions, 776 flow [2025-02-06 18:43:06,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-02-06 18:43:06,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2025-02-06 18:43:06,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 185 transitions. [2025-02-06 18:43:06,398 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5623100303951368 [2025-02-06 18:43:06,398 INFO L175 Difference]: Start difference. First operand has 114 places, 83 transitions, 510 flow. Second operand 7 states and 185 transitions. [2025-02-06 18:43:06,398 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 120 places, 104 transitions, 776 flow [2025-02-06 18:43:06,402 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 106 places, 104 transitions, 723 flow, removed 1 selfloop flow, removed 14 redundant places. [2025-02-06 18:43:06,404 INFO L231 Difference]: Finished difference. Result has 106 places, 82 transitions, 479 flow [2025-02-06 18:43:06,404 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=453, PETRI_DIFFERENCE_MINUEND_PLACES=100, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=82, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=69, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=479, PETRI_PLACES=106, PETRI_TRANSITIONS=82} [2025-02-06 18:43:06,404 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, 59 predicate places. [2025-02-06 18:43:06,404 INFO L471 AbstractCegarLoop]: Abstraction has has 106 places, 82 transitions, 479 flow [2025-02-06 18:43:06,405 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 18.666666666666668) internal successors, (112), 6 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 18:43:06,405 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:43:06,405 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 18:43:06,405 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2025-02-06 18:43:06,405 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2025-02-06 18:43:06,406 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:43:06,406 INFO L85 PathProgramCache]: Analyzing trace with hash -1638113136, now seen corresponding path program 1 times [2025-02-06 18:43:06,406 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:43:06,406 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [971995422] [2025-02-06 18:43:06,406 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:43:06,406 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:43:06,416 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 42 statements into 1 equivalence classes. [2025-02-06 18:43:06,422 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 42 of 42 statements. [2025-02-06 18:43:06,422 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:43:06,422 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:43:06,482 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 18:43:06,483 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:43:06,483 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [971995422] [2025-02-06 18:43:06,483 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [971995422] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:43:06,483 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 18:43:06,483 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-06 18:43:06,484 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [488179065] [2025-02-06 18:43:06,484 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:43:06,484 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-06 18:43:06,484 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:43:06,485 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-06 18:43:06,485 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-06 18:43:06,491 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 47 [2025-02-06 18:43:06,491 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 106 places, 82 transitions, 479 flow. Second operand has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 18:43:06,492 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:43:06,492 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 47 [2025-02-06 18:43:06,492 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:43:06,668 INFO L124 PetriNetUnfolderBase]: 258/692 cut-off events. [2025-02-06 18:43:06,668 INFO L125 PetriNetUnfolderBase]: For 638/674 co-relation queries the response was YES. [2025-02-06 18:43:06,670 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1840 conditions, 692 events. 258/692 cut-off events. For 638/674 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 3523 event pairs, 64 based on Foata normal form. 22/674 useless extension candidates. Maximal degree in co-relation 1689. Up to 350 conditions per place. [2025-02-06 18:43:06,673 INFO L140 encePairwiseOnDemand]: 42/47 looper letters, 94 selfloop transitions, 4 changer transitions 0/112 dead transitions. [2025-02-06 18:43:06,673 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 109 places, 112 transitions, 789 flow [2025-02-06 18:43:06,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-06 18:43:06,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-02-06 18:43:06,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 125 transitions. [2025-02-06 18:43:06,674 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6648936170212766 [2025-02-06 18:43:06,674 INFO L175 Difference]: Start difference. First operand has 106 places, 82 transitions, 479 flow. Second operand 4 states and 125 transitions. [2025-02-06 18:43:06,675 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 109 places, 112 transitions, 789 flow [2025-02-06 18:43:06,678 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 104 places, 112 transitions, 765 flow, removed 0 selfloop flow, removed 5 redundant places. [2025-02-06 18:43:06,680 INFO L231 Difference]: Finished difference. Result has 106 places, 83 transitions, 476 flow [2025-02-06 18:43:06,680 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=455, PETRI_DIFFERENCE_MINUEND_PLACES=101, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=82, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=78, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=476, PETRI_PLACES=106, PETRI_TRANSITIONS=83} [2025-02-06 18:43:06,680 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, 59 predicate places. [2025-02-06 18:43:06,681 INFO L471 AbstractCegarLoop]: Abstraction has has 106 places, 83 transitions, 476 flow [2025-02-06 18:43:06,681 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 18:43:06,681 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:43:06,681 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 18:43:06,681 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2025-02-06 18:43:06,681 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2025-02-06 18:43:06,682 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:43:06,682 INFO L85 PathProgramCache]: Analyzing trace with hash -730940659, now seen corresponding path program 1 times [2025-02-06 18:43:06,682 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:43:06,682 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1039852687] [2025-02-06 18:43:06,682 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:43:06,682 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:43:06,691 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 42 statements into 1 equivalence classes. [2025-02-06 18:43:06,696 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 42 of 42 statements. [2025-02-06 18:43:06,696 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:43:06,696 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:43:06,771 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 18:43:06,772 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:43:06,772 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1039852687] [2025-02-06 18:43:06,772 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1039852687] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:43:06,772 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 18:43:06,772 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-06 18:43:06,772 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [817496612] [2025-02-06 18:43:06,772 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:43:06,772 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-06 18:43:06,773 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:43:06,773 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-06 18:43:06,773 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-06 18:43:06,780 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 47 [2025-02-06 18:43:06,781 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 106 places, 83 transitions, 476 flow. Second operand has 4 states, 4 states have (on average 21.25) internal successors, (85), 4 states have internal predecessors, (85), 0 states have call successors, (0), 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 18:43:06,781 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:43:06,781 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 47 [2025-02-06 18:43:06,781 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:43:06,998 INFO L124 PetriNetUnfolderBase]: 394/1075 cut-off events. [2025-02-06 18:43:06,999 INFO L125 PetriNetUnfolderBase]: For 949/978 co-relation queries the response was YES. [2025-02-06 18:43:07,001 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2775 conditions, 1075 events. 394/1075 cut-off events. For 949/978 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 6066 event pairs, 194 based on Foata normal form. 23/1039 useless extension candidates. Maximal degree in co-relation 2623. Up to 488 conditions per place. [2025-02-06 18:43:07,005 INFO L140 encePairwiseOnDemand]: 41/47 looper letters, 107 selfloop transitions, 4 changer transitions 0/126 dead transitions. [2025-02-06 18:43:07,005 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 109 places, 126 transitions, 873 flow [2025-02-06 18:43:07,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-06 18:43:07,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-02-06 18:43:07,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 137 transitions. [2025-02-06 18:43:07,006 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7287234042553191 [2025-02-06 18:43:07,006 INFO L175 Difference]: Start difference. First operand has 106 places, 83 transitions, 476 flow. Second operand 4 states and 137 transitions. [2025-02-06 18:43:07,007 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 109 places, 126 transitions, 873 flow [2025-02-06 18:43:07,010 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 107 places, 126 transitions, 857 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-02-06 18:43:07,012 INFO L231 Difference]: Finished difference. Result has 109 places, 85 transitions, 497 flow [2025-02-06 18:43:07,012 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=470, PETRI_DIFFERENCE_MINUEND_PLACES=104, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=83, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=79, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=497, PETRI_PLACES=109, PETRI_TRANSITIONS=85} [2025-02-06 18:43:07,013 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, 62 predicate places. [2025-02-06 18:43:07,014 INFO L471 AbstractCegarLoop]: Abstraction has has 109 places, 85 transitions, 497 flow [2025-02-06 18:43:07,014 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.25) internal successors, (85), 4 states have internal predecessors, (85), 0 states have call successors, (0), 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 18:43:07,014 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:43:07,014 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 18:43:07,014 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2025-02-06 18:43:07,014 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2025-02-06 18:43:07,015 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:43:07,015 INFO L85 PathProgramCache]: Analyzing trace with hash 1087495735, now seen corresponding path program 1 times [2025-02-06 18:43:07,015 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:43:07,015 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1816356804] [2025-02-06 18:43:07,015 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:43:07,015 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:43:07,028 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 44 statements into 1 equivalence classes. [2025-02-06 18:43:07,044 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 44 of 44 statements. [2025-02-06 18:43:07,044 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:43:07,044 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:43:07,501 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 18:43:07,502 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:43:07,502 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1816356804] [2025-02-06 18:43:07,502 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1816356804] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:43:07,503 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 18:43:07,503 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-02-06 18:43:07,503 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [104843022] [2025-02-06 18:43:07,503 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:43:07,503 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-02-06 18:43:07,503 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:43:07,504 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-02-06 18:43:07,504 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2025-02-06 18:43:07,507 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 47 [2025-02-06 18:43:07,507 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 109 places, 85 transitions, 497 flow. Second operand has 8 states, 8 states have (on average 20.75) internal successors, (166), 8 states have internal predecessors, (166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 18:43:07,507 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:43:07,507 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 47 [2025-02-06 18:43:07,507 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:43:07,766 INFO L124 PetriNetUnfolderBase]: 403/1144 cut-off events. [2025-02-06 18:43:07,766 INFO L125 PetriNetUnfolderBase]: For 1152/1201 co-relation queries the response was YES. [2025-02-06 18:43:07,769 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3131 conditions, 1144 events. 403/1144 cut-off events. For 1152/1201 co-relation queries the response was YES. Maximal size of possible extension queue 55. Compared 6834 event pairs, 139 based on Foata normal form. 7/1136 useless extension candidates. Maximal degree in co-relation 2977. Up to 502 conditions per place. [2025-02-06 18:43:07,772 INFO L140 encePairwiseOnDemand]: 36/47 looper letters, 118 selfloop transitions, 16 changer transitions 0/150 dead transitions. [2025-02-06 18:43:07,772 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 116 places, 150 transitions, 1087 flow [2025-02-06 18:43:07,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-02-06 18:43:07,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2025-02-06 18:43:07,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 225 transitions. [2025-02-06 18:43:07,773 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.598404255319149 [2025-02-06 18:43:07,773 INFO L175 Difference]: Start difference. First operand has 109 places, 85 transitions, 497 flow. Second operand 8 states and 225 transitions. [2025-02-06 18:43:07,773 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 116 places, 150 transitions, 1087 flow [2025-02-06 18:43:07,778 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 115 places, 150 transitions, 1075 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-02-06 18:43:07,779 INFO L231 Difference]: Finished difference. Result has 120 places, 96 transitions, 613 flow [2025-02-06 18:43:07,780 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=494, PETRI_DIFFERENCE_MINUEND_PLACES=108, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=85, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=71, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=613, PETRI_PLACES=120, PETRI_TRANSITIONS=96} [2025-02-06 18:43:07,780 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, 73 predicate places. [2025-02-06 18:43:07,780 INFO L471 AbstractCegarLoop]: Abstraction has has 120 places, 96 transitions, 613 flow [2025-02-06 18:43:07,781 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 20.75) internal successors, (166), 8 states have internal predecessors, (166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 18:43:07,781 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:43:07,781 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 18:43:07,781 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2025-02-06 18:43:07,781 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2025-02-06 18:43:07,781 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:43:07,781 INFO L85 PathProgramCache]: Analyzing trace with hash 1217647905, now seen corresponding path program 1 times [2025-02-06 18:43:07,781 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:43:07,782 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [40846879] [2025-02-06 18:43:07,782 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:43:07,782 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:43:07,790 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 44 statements into 1 equivalence classes. [2025-02-06 18:43:07,803 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 44 of 44 statements. [2025-02-06 18:43:07,804 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:43:07,804 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:43:08,146 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 18:43:08,146 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:43:08,146 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [40846879] [2025-02-06 18:43:08,147 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [40846879] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:43:08,147 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 18:43:08,147 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-02-06 18:43:08,147 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [488758044] [2025-02-06 18:43:08,147 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:43:08,147 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-02-06 18:43:08,147 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:43:08,147 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-02-06 18:43:08,147 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2025-02-06 18:43:08,150 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 47 [2025-02-06 18:43:08,150 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 120 places, 96 transitions, 613 flow. Second operand has 8 states, 8 states have (on average 20.75) internal successors, (166), 8 states have internal predecessors, (166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 18:43:08,150 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:43:08,150 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 47 [2025-02-06 18:43:08,150 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:43:08,430 INFO L124 PetriNetUnfolderBase]: 452/1305 cut-off events. [2025-02-06 18:43:08,430 INFO L125 PetriNetUnfolderBase]: For 1893/1938 co-relation queries the response was YES. [2025-02-06 18:43:08,433 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4002 conditions, 1305 events. 452/1305 cut-off events. For 1893/1938 co-relation queries the response was YES. Maximal size of possible extension queue 63. Compared 8250 event pairs, 131 based on Foata normal form. 9/1298 useless extension candidates. Maximal degree in co-relation 3842. Up to 473 conditions per place. [2025-02-06 18:43:08,437 INFO L140 encePairwiseOnDemand]: 36/47 looper letters, 150 selfloop transitions, 22 changer transitions 0/188 dead transitions. [2025-02-06 18:43:08,438 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 127 places, 188 transitions, 1464 flow [2025-02-06 18:43:08,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-02-06 18:43:08,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2025-02-06 18:43:08,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 240 transitions. [2025-02-06 18:43:08,439 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6382978723404256 [2025-02-06 18:43:08,439 INFO L175 Difference]: Start difference. First operand has 120 places, 96 transitions, 613 flow. Second operand 8 states and 240 transitions. [2025-02-06 18:43:08,439 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 127 places, 188 transitions, 1464 flow [2025-02-06 18:43:08,444 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 125 places, 188 transitions, 1443 flow, removed 4 selfloop flow, removed 2 redundant places. [2025-02-06 18:43:08,446 INFO L231 Difference]: Finished difference. Result has 130 places, 109 transitions, 792 flow [2025-02-06 18:43:08,446 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=607, PETRI_DIFFERENCE_MINUEND_PLACES=118, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=96, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=76, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=792, PETRI_PLACES=130, PETRI_TRANSITIONS=109} [2025-02-06 18:43:08,447 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, 83 predicate places. [2025-02-06 18:43:08,447 INFO L471 AbstractCegarLoop]: Abstraction has has 130 places, 109 transitions, 792 flow [2025-02-06 18:43:08,447 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 20.75) internal successors, (166), 8 states have internal predecessors, (166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 18:43:08,447 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:43:08,447 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 18:43:08,447 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2025-02-06 18:43:08,447 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2025-02-06 18:43:08,447 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:43:08,447 INFO L85 PathProgramCache]: Analyzing trace with hash -453620991, now seen corresponding path program 2 times [2025-02-06 18:43:08,447 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:43:08,447 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [944098240] [2025-02-06 18:43:08,448 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-06 18:43:08,448 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:43:08,455 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 44 statements into 2 equivalence classes. [2025-02-06 18:43:08,459 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 14 of 44 statements. [2025-02-06 18:43:08,459 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-06 18:43:08,459 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:43:08,637 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 18:43:08,638 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:43:08,638 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [944098240] [2025-02-06 18:43:08,638 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [944098240] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:43:08,638 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 18:43:08,638 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-02-06 18:43:08,638 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [984660498] [2025-02-06 18:43:08,638 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:43:08,638 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-02-06 18:43:08,638 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:43:08,638 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-02-06 18:43:08,638 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2025-02-06 18:43:08,640 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 47 [2025-02-06 18:43:08,640 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 130 places, 109 transitions, 792 flow. Second operand has 8 states, 8 states have (on average 20.75) internal successors, (166), 8 states have internal predecessors, (166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 18:43:08,640 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:43:08,641 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 47 [2025-02-06 18:43:08,641 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:43:08,965 INFO L124 PetriNetUnfolderBase]: 501/1394 cut-off events. [2025-02-06 18:43:08,965 INFO L125 PetriNetUnfolderBase]: For 3243/3292 co-relation queries the response was YES. [2025-02-06 18:43:08,970 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4888 conditions, 1394 events. 501/1394 cut-off events. For 3243/3292 co-relation queries the response was YES. Maximal size of possible extension queue 63. Compared 8752 event pairs, 200 based on Foata normal form. 11/1394 useless extension candidates. Maximal degree in co-relation 4722. Up to 584 conditions per place. [2025-02-06 18:43:08,974 INFO L140 encePairwiseOnDemand]: 35/47 looper letters, 154 selfloop transitions, 25 changer transitions 0/195 dead transitions. [2025-02-06 18:43:08,974 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 137 places, 195 transitions, 1768 flow [2025-02-06 18:43:08,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-02-06 18:43:08,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2025-02-06 18:43:08,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 231 transitions. [2025-02-06 18:43:08,975 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6143617021276596 [2025-02-06 18:43:08,975 INFO L175 Difference]: Start difference. First operand has 130 places, 109 transitions, 792 flow. Second operand 8 states and 231 transitions. [2025-02-06 18:43:08,975 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 137 places, 195 transitions, 1768 flow [2025-02-06 18:43:08,983 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 135 places, 195 transitions, 1738 flow, removed 8 selfloop flow, removed 2 redundant places. [2025-02-06 18:43:08,985 INFO L231 Difference]: Finished difference. Result has 139 places, 121 transitions, 993 flow [2025-02-06 18:43:08,985 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=778, PETRI_DIFFERENCE_MINUEND_PLACES=128, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=109, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=87, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=993, PETRI_PLACES=139, PETRI_TRANSITIONS=121} [2025-02-06 18:43:08,985 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, 92 predicate places. [2025-02-06 18:43:08,985 INFO L471 AbstractCegarLoop]: Abstraction has has 139 places, 121 transitions, 993 flow [2025-02-06 18:43:08,985 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 20.75) internal successors, (166), 8 states have internal predecessors, (166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 18:43:08,985 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:43:08,985 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 18:43:08,985 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2025-02-06 18:43:08,985 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2025-02-06 18:43:08,986 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:43:08,986 INFO L85 PathProgramCache]: Analyzing trace with hash -1137995551, now seen corresponding path program 2 times [2025-02-06 18:43:08,986 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:43:08,986 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [867789220] [2025-02-06 18:43:08,986 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-06 18:43:08,986 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:43:08,994 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 44 statements into 2 equivalence classes. [2025-02-06 18:43:08,997 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 13 of 44 statements. [2025-02-06 18:43:08,997 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-06 18:43:08,997 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:43:09,085 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 18:43:09,085 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:43:09,085 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [867789220] [2025-02-06 18:43:09,085 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [867789220] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:43:09,085 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 18:43:09,085 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-02-06 18:43:09,085 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2056114682] [2025-02-06 18:43:09,085 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:43:09,085 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-02-06 18:43:09,086 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:43:09,086 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-02-06 18:43:09,086 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2025-02-06 18:43:09,091 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 47 [2025-02-06 18:43:09,091 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 139 places, 121 transitions, 993 flow. Second operand has 7 states, 7 states have (on average 22.0) internal successors, (154), 7 states have internal predecessors, (154), 0 states have call successors, (0), 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 18:43:09,091 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:43:09,091 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 47 [2025-02-06 18:43:09,091 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:43:09,428 INFO L124 PetriNetUnfolderBase]: 530/1494 cut-off events. [2025-02-06 18:43:09,428 INFO L125 PetriNetUnfolderBase]: For 4928/5031 co-relation queries the response was YES. [2025-02-06 18:43:09,433 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5600 conditions, 1494 events. 530/1494 cut-off events. For 4928/5031 co-relation queries the response was YES. Maximal size of possible extension queue 62. Compared 9638 event pairs, 195 based on Foata normal form. 12/1486 useless extension candidates. Maximal degree in co-relation 5429. Up to 465 conditions per place. [2025-02-06 18:43:09,437 INFO L140 encePairwiseOnDemand]: 36/47 looper letters, 171 selfloop transitions, 30 changer transitions 0/218 dead transitions. [2025-02-06 18:43:09,437 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 145 places, 218 transitions, 2111 flow [2025-02-06 18:43:09,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-02-06 18:43:09,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2025-02-06 18:43:09,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 226 transitions. [2025-02-06 18:43:09,438 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6869300911854104 [2025-02-06 18:43:09,438 INFO L175 Difference]: Start difference. First operand has 139 places, 121 transitions, 993 flow. Second operand 7 states and 226 transitions. [2025-02-06 18:43:09,438 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 145 places, 218 transitions, 2111 flow [2025-02-06 18:43:09,447 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 142 places, 218 transitions, 2054 flow, removed 5 selfloop flow, removed 3 redundant places. [2025-02-06 18:43:09,449 INFO L231 Difference]: Finished difference. Result has 146 places, 133 transitions, 1208 flow [2025-02-06 18:43:09,449 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=967, PETRI_DIFFERENCE_MINUEND_PLACES=136, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=121, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=94, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=1208, PETRI_PLACES=146, PETRI_TRANSITIONS=133} [2025-02-06 18:43:09,449 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, 99 predicate places. [2025-02-06 18:43:09,449 INFO L471 AbstractCegarLoop]: Abstraction has has 146 places, 133 transitions, 1208 flow [2025-02-06 18:43:09,449 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 22.0) internal successors, (154), 7 states have internal predecessors, (154), 0 states have call successors, (0), 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 18:43:09,449 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:43:09,449 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 18:43:09,449 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2025-02-06 18:43:09,449 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2025-02-06 18:43:09,450 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:43:09,450 INFO L85 PathProgramCache]: Analyzing trace with hash 627341717, now seen corresponding path program 3 times [2025-02-06 18:43:09,450 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:43:09,450 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1075767517] [2025-02-06 18:43:09,450 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-02-06 18:43:09,450 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:43:09,457 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 44 statements into 11 equivalence classes. [2025-02-06 18:43:09,459 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) and asserted 13 of 44 statements. [2025-02-06 18:43:09,459 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2025-02-06 18:43:09,459 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:43:09,525 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 18:43:09,526 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:43:09,526 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1075767517] [2025-02-06 18:43:09,526 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1075767517] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:43:09,526 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 18:43:09,526 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-02-06 18:43:09,526 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2018259406] [2025-02-06 18:43:09,526 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:43:09,526 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-02-06 18:43:09,526 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:43:09,526 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-02-06 18:43:09,526 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2025-02-06 18:43:09,532 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 47 [2025-02-06 18:43:09,532 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 146 places, 133 transitions, 1208 flow. Second operand has 7 states, 7 states have (on average 21.0) internal successors, (147), 7 states have internal predecessors, (147), 0 states have call successors, (0), 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 18:43:09,532 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:43:09,532 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 47 [2025-02-06 18:43:09,532 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:43:09,849 INFO L124 PetriNetUnfolderBase]: 617/1698 cut-off events. [2025-02-06 18:43:09,849 INFO L125 PetriNetUnfolderBase]: For 7518/7581 co-relation queries the response was YES. [2025-02-06 18:43:09,856 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6994 conditions, 1698 events. 617/1698 cut-off events. For 7518/7581 co-relation queries the response was YES. Maximal size of possible extension queue 80. Compared 11166 event pairs, 252 based on Foata normal form. 11/1697 useless extension candidates. Maximal degree in co-relation 6820. Up to 605 conditions per place. [2025-02-06 18:43:09,862 INFO L140 encePairwiseOnDemand]: 36/47 looper letters, 175 selfloop transitions, 31 changer transitions 0/222 dead transitions. [2025-02-06 18:43:09,863 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 152 places, 222 transitions, 2386 flow [2025-02-06 18:43:09,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-02-06 18:43:09,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2025-02-06 18:43:09,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 217 transitions. [2025-02-06 18:43:09,863 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6595744680851063 [2025-02-06 18:43:09,863 INFO L175 Difference]: Start difference. First operand has 146 places, 133 transitions, 1208 flow. Second operand 7 states and 217 transitions. [2025-02-06 18:43:09,863 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 152 places, 222 transitions, 2386 flow [2025-02-06 18:43:09,876 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 150 places, 222 transitions, 2322 flow, removed 7 selfloop flow, removed 2 redundant places. [2025-02-06 18:43:09,878 INFO L231 Difference]: Finished difference. Result has 155 places, 150 transitions, 1523 flow [2025-02-06 18:43:09,879 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=1168, PETRI_DIFFERENCE_MINUEND_PLACES=144, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=133, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=106, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=1523, PETRI_PLACES=155, PETRI_TRANSITIONS=150} [2025-02-06 18:43:09,879 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, 108 predicate places. [2025-02-06 18:43:09,879 INFO L471 AbstractCegarLoop]: Abstraction has has 155 places, 150 transitions, 1523 flow [2025-02-06 18:43:09,879 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 21.0) internal successors, (147), 7 states have internal predecessors, (147), 0 states have call successors, (0), 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 18:43:09,879 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:43:09,879 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 18:43:09,879 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2025-02-06 18:43:09,879 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2025-02-06 18:43:09,880 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:43:09,880 INFO L85 PathProgramCache]: Analyzing trace with hash -1215854415, now seen corresponding path program 3 times [2025-02-06 18:43:09,880 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:43:09,880 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [462442915] [2025-02-06 18:43:09,880 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-02-06 18:43:09,880 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:43:09,886 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 44 statements into 11 equivalence classes. [2025-02-06 18:43:09,888 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) and asserted 13 of 44 statements. [2025-02-06 18:43:09,888 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2025-02-06 18:43:09,888 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:43:09,961 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 18:43:09,961 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:43:09,961 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [462442915] [2025-02-06 18:43:09,961 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [462442915] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:43:09,961 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 18:43:09,961 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-02-06 18:43:09,961 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2088531709] [2025-02-06 18:43:09,961 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:43:09,961 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-02-06 18:43:09,961 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:43:09,961 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-02-06 18:43:09,961 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2025-02-06 18:43:09,967 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 47 [2025-02-06 18:43:09,968 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 155 places, 150 transitions, 1523 flow. Second operand has 7 states, 7 states have (on average 22.0) internal successors, (154), 7 states have internal predecessors, (154), 0 states have call successors, (0), 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 18:43:09,968 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:43:09,968 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 47 [2025-02-06 18:43:09,968 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:43:10,325 INFO L124 PetriNetUnfolderBase]: 629/1763 cut-off events. [2025-02-06 18:43:10,325 INFO L125 PetriNetUnfolderBase]: For 9563/9647 co-relation queries the response was YES. [2025-02-06 18:43:10,332 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7570 conditions, 1763 events. 629/1763 cut-off events. For 9563/9647 co-relation queries the response was YES. Maximal size of possible extension queue 89. Compared 11891 event pairs, 213 based on Foata normal form. 15/1756 useless extension candidates. Maximal degree in co-relation 7391. Up to 528 conditions per place. [2025-02-06 18:43:10,338 INFO L140 encePairwiseOnDemand]: 35/47 looper letters, 183 selfloop transitions, 44 changer transitions 0/244 dead transitions. [2025-02-06 18:43:10,338 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 161 places, 244 transitions, 2750 flow [2025-02-06 18:43:10,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-02-06 18:43:10,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2025-02-06 18:43:10,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 228 transitions. [2025-02-06 18:43:10,339 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6930091185410334 [2025-02-06 18:43:10,339 INFO L175 Difference]: Start difference. First operand has 155 places, 150 transitions, 1523 flow. Second operand 7 states and 228 transitions. [2025-02-06 18:43:10,339 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 161 places, 244 transitions, 2750 flow [2025-02-06 18:43:10,354 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 161 places, 244 transitions, 2704 flow, removed 23 selfloop flow, removed 0 redundant places. [2025-02-06 18:43:10,356 INFO L231 Difference]: Finished difference. Result has 166 places, 169 transitions, 1946 flow [2025-02-06 18:43:10,356 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=1477, PETRI_DIFFERENCE_MINUEND_PLACES=155, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=150, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=26, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=110, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=1946, PETRI_PLACES=166, PETRI_TRANSITIONS=169} [2025-02-06 18:43:10,357 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, 119 predicate places. [2025-02-06 18:43:10,357 INFO L471 AbstractCegarLoop]: Abstraction has has 166 places, 169 transitions, 1946 flow [2025-02-06 18:43:10,357 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 22.0) internal successors, (154), 7 states have internal predecessors, (154), 0 states have call successors, (0), 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 18:43:10,357 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:43:10,357 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 18:43:10,357 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2025-02-06 18:43:10,357 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2025-02-06 18:43:10,357 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:43:10,357 INFO L85 PathProgramCache]: Analyzing trace with hash -166929131, now seen corresponding path program 4 times [2025-02-06 18:43:10,358 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:43:10,358 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [928225032] [2025-02-06 18:43:10,358 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-02-06 18:43:10,358 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:43:10,364 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 44 statements into 2 equivalence classes. [2025-02-06 18:43:10,371 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 18:43:10,371 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-02-06 18:43:10,371 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:43:10,526 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 18:43:10,526 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:43:10,526 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [928225032] [2025-02-06 18:43:10,526 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [928225032] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:43:10,526 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 18:43:10,526 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-02-06 18:43:10,526 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1575137793] [2025-02-06 18:43:10,527 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:43:10,527 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-02-06 18:43:10,527 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:43:10,527 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-02-06 18:43:10,527 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2025-02-06 18:43:10,534 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 47 [2025-02-06 18:43:10,534 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 166 places, 169 transitions, 1946 flow. Second operand has 7 states, 7 states have (on average 22.0) internal successors, (154), 7 states have internal predecessors, (154), 0 states have call successors, (0), 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 18:43:10,534 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:43:10,534 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 47 [2025-02-06 18:43:10,534 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:43:10,897 INFO L124 PetriNetUnfolderBase]: 600/1692 cut-off events. [2025-02-06 18:43:10,897 INFO L125 PetriNetUnfolderBase]: For 12036/12149 co-relation queries the response was YES. [2025-02-06 18:43:10,905 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7715 conditions, 1692 events. 600/1692 cut-off events. For 12036/12149 co-relation queries the response was YES. Maximal size of possible extension queue 78. Compared 11280 event pairs, 206 based on Foata normal form. 20/1692 useless extension candidates. Maximal degree in co-relation 7530. Up to 556 conditions per place. [2025-02-06 18:43:10,909 INFO L140 encePairwiseOnDemand]: 35/47 looper letters, 174 selfloop transitions, 50 changer transitions 0/241 dead transitions. [2025-02-06 18:43:10,910 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 172 places, 241 transitions, 2981 flow [2025-02-06 18:43:10,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-02-06 18:43:10,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2025-02-06 18:43:10,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 224 transitions. [2025-02-06 18:43:10,910 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6808510638297872 [2025-02-06 18:43:10,910 INFO L175 Difference]: Start difference. First operand has 166 places, 169 transitions, 1946 flow. Second operand 7 states and 224 transitions. [2025-02-06 18:43:10,911 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 172 places, 241 transitions, 2981 flow [2025-02-06 18:43:10,932 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 172 places, 241 transitions, 2911 flow, removed 35 selfloop flow, removed 0 redundant places. [2025-02-06 18:43:10,934 INFO L231 Difference]: Finished difference. Result has 175 places, 177 transitions, 2157 flow [2025-02-06 18:43:10,934 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=1858, PETRI_DIFFERENCE_MINUEND_PLACES=166, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=167, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=40, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=120, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=2157, PETRI_PLACES=175, PETRI_TRANSITIONS=177} [2025-02-06 18:43:10,934 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, 128 predicate places. [2025-02-06 18:43:10,934 INFO L471 AbstractCegarLoop]: Abstraction has has 175 places, 177 transitions, 2157 flow [2025-02-06 18:43:10,935 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 22.0) internal successors, (154), 7 states have internal predecessors, (154), 0 states have call successors, (0), 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 18:43:10,935 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:43:10,935 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 18:43:10,935 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2025-02-06 18:43:10,935 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2025-02-06 18:43:10,935 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:43:10,935 INFO L85 PathProgramCache]: Analyzing trace with hash -1487821705, now seen corresponding path program 5 times [2025-02-06 18:43:10,935 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:43:10,935 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1510334054] [2025-02-06 18:43:10,935 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-02-06 18:43:10,935 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:43:10,942 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 44 statements into 11 equivalence classes. [2025-02-06 18:43:10,954 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) and asserted 44 of 44 statements. [2025-02-06 18:43:10,954 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) [2025-02-06 18:43:10,954 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:43:11,449 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 18:43:11,449 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:43:11,449 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1510334054] [2025-02-06 18:43:11,449 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1510334054] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 18:43:11,449 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1289474424] [2025-02-06 18:43:11,449 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-02-06 18:43:11,449 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 18:43:11,449 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 18:43:11,455 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 18:43:11,457 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 18:43:11,506 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 44 statements into 11 equivalence classes. [2025-02-06 18:43:11,561 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) and asserted 44 of 44 statements. [2025-02-06 18:43:11,562 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) [2025-02-06 18:43:11,562 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:43:11,563 INFO L256 TraceCheckSpWp]: Trace formula consists of 317 conjuncts, 26 conjuncts are in the unsatisfiable core [2025-02-06 18:43:11,565 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 18:43:11,660 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 18:43:11,697 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 18:43:11,697 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 18:43:11,697 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1289474424] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:43:11,698 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-06 18:43:11,698 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [9] total 15 [2025-02-06 18:43:11,698 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [548358910] [2025-02-06 18:43:11,698 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:43:11,698 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-02-06 18:43:11,698 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:43:11,700 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-02-06 18:43:11,700 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=201, Unknown=0, NotChecked=0, Total=240 [2025-02-06 18:43:11,702 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 47 [2025-02-06 18:43:11,702 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 175 places, 177 transitions, 2157 flow. Second operand has 8 states, 8 states have (on average 20.75) internal successors, (166), 8 states have internal predecessors, (166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 18:43:11,703 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:43:11,703 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 47 [2025-02-06 18:43:11,703 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:43:12,101 INFO L124 PetriNetUnfolderBase]: 620/1730 cut-off events. [2025-02-06 18:43:12,101 INFO L125 PetriNetUnfolderBase]: For 13565/13657 co-relation queries the response was YES. [2025-02-06 18:43:12,109 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8102 conditions, 1730 events. 620/1730 cut-off events. For 13565/13657 co-relation queries the response was YES. Maximal size of possible extension queue 80. Compared 11503 event pairs, 208 based on Foata normal form. 12/1721 useless extension candidates. Maximal degree in co-relation 7913. Up to 546 conditions per place. [2025-02-06 18:43:12,114 INFO L140 encePairwiseOnDemand]: 35/47 looper letters, 190 selfloop transitions, 46 changer transitions 0/252 dead transitions. [2025-02-06 18:43:12,114 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 182 places, 252 transitions, 3283 flow [2025-02-06 18:43:12,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-02-06 18:43:12,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2025-02-06 18:43:12,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 241 transitions. [2025-02-06 18:43:12,115 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6409574468085106 [2025-02-06 18:43:12,115 INFO L175 Difference]: Start difference. First operand has 175 places, 177 transitions, 2157 flow. Second operand 8 states and 241 transitions. [2025-02-06 18:43:12,115 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 182 places, 252 transitions, 3283 flow [2025-02-06 18:43:12,135 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 179 places, 252 transitions, 3164 flow, removed 23 selfloop flow, removed 3 redundant places. [2025-02-06 18:43:12,137 INFO L231 Difference]: Finished difference. Result has 183 places, 187 transitions, 2392 flow [2025-02-06 18:43:12,138 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=2064, PETRI_DIFFERENCE_MINUEND_PLACES=172, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=177, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=37, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=134, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=2392, PETRI_PLACES=183, PETRI_TRANSITIONS=187} [2025-02-06 18:43:12,138 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, 136 predicate places. [2025-02-06 18:43:12,138 INFO L471 AbstractCegarLoop]: Abstraction has has 183 places, 187 transitions, 2392 flow [2025-02-06 18:43:12,138 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 20.75) internal successors, (166), 8 states have internal predecessors, (166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 18:43:12,138 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:43:12,138 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 18:43:12,147 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2025-02-06 18:43:12,343 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,7 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 18:43:12,343 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2025-02-06 18:43:12,344 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:43:12,344 INFO L85 PathProgramCache]: Analyzing trace with hash 1821058355, now seen corresponding path program 4 times [2025-02-06 18:43:12,344 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:43:12,344 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [721507726] [2025-02-06 18:43:12,344 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-02-06 18:43:12,344 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:43:12,355 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 44 statements into 2 equivalence classes. [2025-02-06 18:43:12,360 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 18:43:12,361 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-02-06 18:43:12,361 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:43:12,542 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 18:43:12,542 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:43:12,543 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [721507726] [2025-02-06 18:43:12,543 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [721507726] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:43:12,543 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 18:43:12,543 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2025-02-06 18:43:12,543 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [294583043] [2025-02-06 18:43:12,543 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:43:12,543 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-02-06 18:43:12,543 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:43:12,543 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-02-06 18:43:12,544 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2025-02-06 18:43:12,550 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 47 [2025-02-06 18:43:12,550 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 183 places, 187 transitions, 2392 flow. Second operand has 8 states, 8 states have (on average 21.75) internal successors, (174), 8 states have internal predecessors, (174), 0 states have call successors, (0), 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 18:43:12,550 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:43:12,550 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 47 [2025-02-06 18:43:12,550 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:43:13,110 INFO L124 PetriNetUnfolderBase]: 624/1802 cut-off events. [2025-02-06 18:43:13,110 INFO L125 PetriNetUnfolderBase]: For 13899/13982 co-relation queries the response was YES. [2025-02-06 18:43:13,117 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8305 conditions, 1802 events. 624/1802 cut-off events. For 13899/13982 co-relation queries the response was YES. Maximal size of possible extension queue 74. Compared 12369 event pairs, 97 based on Foata normal form. 13/1799 useless extension candidates. Maximal degree in co-relation 8111. Up to 426 conditions per place. [2025-02-06 18:43:13,122 INFO L140 encePairwiseOnDemand]: 35/47 looper letters, 202 selfloop transitions, 86 changer transitions 0/305 dead transitions. [2025-02-06 18:43:13,123 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 194 places, 305 transitions, 3835 flow [2025-02-06 18:43:13,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-02-06 18:43:13,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2025-02-06 18:43:13,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 367 transitions. [2025-02-06 18:43:13,124 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.650709219858156 [2025-02-06 18:43:13,124 INFO L175 Difference]: Start difference. First operand has 183 places, 187 transitions, 2392 flow. Second operand 12 states and 367 transitions. [2025-02-06 18:43:13,124 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 194 places, 305 transitions, 3835 flow [2025-02-06 18:43:13,148 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 191 places, 305 transitions, 3701 flow, removed 45 selfloop flow, removed 3 redundant places. [2025-02-06 18:43:13,151 INFO L231 Difference]: Finished difference. Result has 196 places, 203 transitions, 2758 flow [2025-02-06 18:43:13,152 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=2251, PETRI_DIFFERENCE_MINUEND_PLACES=180, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=185, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=69, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=108, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=2758, PETRI_PLACES=196, PETRI_TRANSITIONS=203} [2025-02-06 18:43:13,152 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, 149 predicate places. [2025-02-06 18:43:13,152 INFO L471 AbstractCegarLoop]: Abstraction has has 196 places, 203 transitions, 2758 flow [2025-02-06 18:43:13,152 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 21.75) internal successors, (174), 8 states have internal predecessors, (174), 0 states have call successors, (0), 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 18:43:13,152 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:43:13,152 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 18:43:13,152 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2025-02-06 18:43:13,153 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2025-02-06 18:43:13,153 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:43:13,153 INFO L85 PathProgramCache]: Analyzing trace with hash 1183256213, now seen corresponding path program 6 times [2025-02-06 18:43:13,153 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:43:13,153 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [550141628] [2025-02-06 18:43:13,153 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-02-06 18:43:13,153 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:43:13,161 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 44 statements into 11 equivalence classes. [2025-02-06 18:43:13,163 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) and asserted 13 of 44 statements. [2025-02-06 18:43:13,163 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2025-02-06 18:43:13,164 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:43:13,223 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 18:43:13,223 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:43:13,223 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [550141628] [2025-02-06 18:43:13,223 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [550141628] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:43:13,224 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 18:43:13,224 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-02-06 18:43:13,224 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [464143479] [2025-02-06 18:43:13,224 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:43:13,224 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-02-06 18:43:13,224 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:43:13,224 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-02-06 18:43:13,224 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2025-02-06 18:43:13,227 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 47 [2025-02-06 18:43:13,227 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 196 places, 203 transitions, 2758 flow. Second operand has 7 states, 7 states have (on average 21.0) internal successors, (147), 7 states have internal predecessors, (147), 0 states have call successors, (0), 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 18:43:13,227 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:43:13,227 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 47 [2025-02-06 18:43:13,227 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:43:13,582 INFO L124 PetriNetUnfolderBase]: 618/1773 cut-off events. [2025-02-06 18:43:13,582 INFO L125 PetriNetUnfolderBase]: For 15228/15341 co-relation queries the response was YES. [2025-02-06 18:43:13,591 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8456 conditions, 1773 events. 618/1773 cut-off events. For 15228/15341 co-relation queries the response was YES. Maximal size of possible extension queue 72. Compared 11969 event pairs, 214 based on Foata normal form. 18/1769 useless extension candidates. Maximal degree in co-relation 8258. Up to 692 conditions per place. [2025-02-06 18:43:13,597 INFO L140 encePairwiseOnDemand]: 35/47 looper letters, 189 selfloop transitions, 58 changer transitions 0/263 dead transitions. [2025-02-06 18:43:13,597 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 202 places, 263 transitions, 3831 flow [2025-02-06 18:43:13,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-02-06 18:43:13,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2025-02-06 18:43:13,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 210 transitions. [2025-02-06 18:43:13,598 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6382978723404256 [2025-02-06 18:43:13,598 INFO L175 Difference]: Start difference. First operand has 196 places, 203 transitions, 2758 flow. Second operand 7 states and 210 transitions. [2025-02-06 18:43:13,598 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 202 places, 263 transitions, 3831 flow [2025-02-06 18:43:13,630 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 196 places, 263 transitions, 3589 flow, removed 65 selfloop flow, removed 6 redundant places. [2025-02-06 18:43:13,633 INFO L231 Difference]: Finished difference. Result has 199 places, 211 transitions, 2842 flow [2025-02-06 18:43:13,633 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=2527, PETRI_DIFFERENCE_MINUEND_PLACES=190, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=201, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=48, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=146, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=2842, PETRI_PLACES=199, PETRI_TRANSITIONS=211} [2025-02-06 18:43:13,633 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, 152 predicate places. [2025-02-06 18:43:13,633 INFO L471 AbstractCegarLoop]: Abstraction has has 199 places, 211 transitions, 2842 flow [2025-02-06 18:43:13,633 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 21.0) internal successors, (147), 7 states have internal predecessors, (147), 0 states have call successors, (0), 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 18:43:13,634 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:43:13,634 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 18:43:13,634 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2025-02-06 18:43:13,634 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2025-02-06 18:43:13,634 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:43:13,634 INFO L85 PathProgramCache]: Analyzing trace with hash -1749401935, now seen corresponding path program 5 times [2025-02-06 18:43:13,634 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:43:13,634 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1995477476] [2025-02-06 18:43:13,635 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-02-06 18:43:13,635 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:43:13,641 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 44 statements into 11 equivalence classes. [2025-02-06 18:43:13,648 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) and asserted 44 of 44 statements. [2025-02-06 18:43:13,649 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) [2025-02-06 18:43:13,649 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:43:13,966 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 18:43:13,966 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:43:13,966 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1995477476] [2025-02-06 18:43:13,966 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1995477476] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 18:43:13,966 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1549388517] [2025-02-06 18:43:13,966 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-02-06 18:43:13,967 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 18:43:13,967 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 18:43:13,968 INFO L229 MonitoredProcess]: Starting monitored process 8 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 18:43:13,974 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2025-02-06 18:43:14,021 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 44 statements into 11 equivalence classes. [2025-02-06 18:43:14,063 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) and asserted 44 of 44 statements. [2025-02-06 18:43:14,063 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) [2025-02-06 18:43:14,063 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:43:14,064 INFO L256 TraceCheckSpWp]: Trace formula consists of 317 conjuncts, 28 conjuncts are in the unsatisfiable core [2025-02-06 18:43:14,066 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 18:43:14,156 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 18:43:14,175 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 18:43:14,175 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 18:43:14,175 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1549388517] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:43:14,175 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-06 18:43:14,175 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [9] total 15 [2025-02-06 18:43:14,175 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2126330264] [2025-02-06 18:43:14,175 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:43:14,175 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-02-06 18:43:14,175 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:43:14,175 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-02-06 18:43:14,176 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=201, Unknown=0, NotChecked=0, Total=240 [2025-02-06 18:43:14,177 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 47 [2025-02-06 18:43:14,177 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 199 places, 211 transitions, 2842 flow. Second operand has 8 states, 8 states have (on average 20.75) internal successors, (166), 8 states have internal predecessors, (166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 18:43:14,177 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:43:14,177 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 47 [2025-02-06 18:43:14,178 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:43:14,644 INFO L124 PetriNetUnfolderBase]: 616/1766 cut-off events. [2025-02-06 18:43:14,645 INFO L125 PetriNetUnfolderBase]: For 15036/15169 co-relation queries the response was YES. [2025-02-06 18:43:14,654 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8224 conditions, 1766 events. 616/1766 cut-off events. For 15036/15169 co-relation queries the response was YES. Maximal size of possible extension queue 77. Compared 11938 event pairs, 226 based on Foata normal form. 18/1759 useless extension candidates. Maximal degree in co-relation 8027. Up to 576 conditions per place. [2025-02-06 18:43:14,660 INFO L140 encePairwiseOnDemand]: 33/47 looper letters, 200 selfloop transitions, 58 changer transitions 0/274 dead transitions. [2025-02-06 18:43:14,660 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 207 places, 274 transitions, 3731 flow [2025-02-06 18:43:14,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-02-06 18:43:14,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2025-02-06 18:43:14,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 295 transitions. [2025-02-06 18:43:14,661 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6276595744680851 [2025-02-06 18:43:14,661 INFO L175 Difference]: Start difference. First operand has 199 places, 211 transitions, 2842 flow. Second operand 10 states and 295 transitions. [2025-02-06 18:43:14,661 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 207 places, 274 transitions, 3731 flow [2025-02-06 18:43:14,689 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 203 places, 274 transitions, 3595 flow, removed 22 selfloop flow, removed 4 redundant places. [2025-02-06 18:43:14,692 INFO L231 Difference]: Finished difference. Result has 207 places, 217 transitions, 2971 flow [2025-02-06 18:43:14,692 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=2650, PETRI_DIFFERENCE_MINUEND_PLACES=194, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=207, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=48, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=151, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=2971, PETRI_PLACES=207, PETRI_TRANSITIONS=217} [2025-02-06 18:43:14,692 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, 160 predicate places. [2025-02-06 18:43:14,692 INFO L471 AbstractCegarLoop]: Abstraction has has 207 places, 217 transitions, 2971 flow [2025-02-06 18:43:14,693 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 20.75) internal successors, (166), 8 states have internal predecessors, (166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 18:43:14,693 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:43:14,693 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 18:43:14,699 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2025-02-06 18:43:14,897 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,8 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 18:43:14,897 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2025-02-06 18:43:14,897 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:43:14,897 INFO L85 PathProgramCache]: Analyzing trace with hash 1975203101, now seen corresponding path program 7 times [2025-02-06 18:43:14,897 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:43:14,898 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1821255154] [2025-02-06 18:43:14,898 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2025-02-06 18:43:14,898 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:43:14,905 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 44 statements into 1 equivalence classes. [2025-02-06 18:43:14,913 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 44 of 44 statements. [2025-02-06 18:43:14,913 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:43:14,913 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:43:15,135 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 18:43:15,136 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:43:15,136 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1821255154] [2025-02-06 18:43:15,136 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1821255154] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:43:15,136 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 18:43:15,136 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2025-02-06 18:43:15,136 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [751769047] [2025-02-06 18:43:15,136 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:43:15,136 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-02-06 18:43:15,136 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:43:15,136 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-02-06 18:43:15,136 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2025-02-06 18:43:15,138 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 47 [2025-02-06 18:43:15,138 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 207 places, 217 transitions, 2971 flow. Second operand has 9 states, 9 states have (on average 20.555555555555557) internal successors, (185), 9 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 18:43:15,138 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:43:15,138 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 47 [2025-02-06 18:43:15,138 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:43:15,590 INFO L124 PetriNetUnfolderBase]: 647/1858 cut-off events. [2025-02-06 18:43:15,590 INFO L125 PetriNetUnfolderBase]: For 14374/14512 co-relation queries the response was YES. [2025-02-06 18:43:15,597 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8561 conditions, 1858 events. 647/1858 cut-off events. For 14374/14512 co-relation queries the response was YES. Maximal size of possible extension queue 80. Compared 12785 event pairs, 139 based on Foata normal form. 18/1852 useless extension candidates. Maximal degree in co-relation 8360. Up to 659 conditions per place. [2025-02-06 18:43:15,601 INFO L140 encePairwiseOnDemand]: 35/47 looper letters, 214 selfloop transitions, 89 changer transitions 0/319 dead transitions. [2025-02-06 18:43:15,601 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 219 places, 319 transitions, 4421 flow [2025-02-06 18:43:15,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-02-06 18:43:15,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2025-02-06 18:43:15,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 363 transitions. [2025-02-06 18:43:15,602 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5941080196399345 [2025-02-06 18:43:15,602 INFO L175 Difference]: Start difference. First operand has 207 places, 217 transitions, 2971 flow. Second operand 13 states and 363 transitions. [2025-02-06 18:43:15,602 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 219 places, 319 transitions, 4421 flow [2025-02-06 18:43:15,629 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 216 places, 319 transitions, 4333 flow, removed 22 selfloop flow, removed 3 redundant places. [2025-02-06 18:43:15,633 INFO L231 Difference]: Finished difference. Result has 221 places, 239 transitions, 3474 flow [2025-02-06 18:43:15,633 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=2889, PETRI_DIFFERENCE_MINUEND_PLACES=204, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=217, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=68, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=137, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=3474, PETRI_PLACES=221, PETRI_TRANSITIONS=239} [2025-02-06 18:43:15,633 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, 174 predicate places. [2025-02-06 18:43:15,633 INFO L471 AbstractCegarLoop]: Abstraction has has 221 places, 239 transitions, 3474 flow [2025-02-06 18:43:15,633 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 20.555555555555557) internal successors, (185), 9 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 18:43:15,633 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:43:15,633 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 18:43:15,633 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2025-02-06 18:43:15,633 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2025-02-06 18:43:15,634 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:43:15,634 INFO L85 PathProgramCache]: Analyzing trace with hash 2119084961, now seen corresponding path program 8 times [2025-02-06 18:43:15,634 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:43:15,634 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [374096128] [2025-02-06 18:43:15,634 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-06 18:43:15,634 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:43:15,642 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 44 statements into 2 equivalence classes. [2025-02-06 18:43:15,643 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 13 of 44 statements. [2025-02-06 18:43:15,643 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-06 18:43:15,643 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:43:15,707 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 18:43:15,707 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:43:15,707 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [374096128] [2025-02-06 18:43:15,707 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [374096128] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:43:15,707 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 18:43:15,707 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2025-02-06 18:43:15,707 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1081022830] [2025-02-06 18:43:15,707 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:43:15,708 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-02-06 18:43:15,708 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:43:15,708 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-02-06 18:43:15,708 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2025-02-06 18:43:15,711 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 47 [2025-02-06 18:43:15,711 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 221 places, 239 transitions, 3474 flow. Second operand has 8 states, 8 states have (on average 20.75) internal successors, (166), 8 states have internal predecessors, (166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 18:43:15,711 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:43:15,711 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 47 [2025-02-06 18:43:15,711 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:43:16,150 INFO L124 PetriNetUnfolderBase]: 657/1893 cut-off events. [2025-02-06 18:43:16,150 INFO L125 PetriNetUnfolderBase]: For 17414/17554 co-relation queries the response was YES. [2025-02-06 18:43:16,161 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9222 conditions, 1893 events. 657/1893 cut-off events. For 17414/17554 co-relation queries the response was YES. Maximal size of possible extension queue 80. Compared 13091 event pairs, 140 based on Foata normal form. 19/1888 useless extension candidates. Maximal degree in co-relation 9016. Up to 660 conditions per place. [2025-02-06 18:43:16,166 INFO L140 encePairwiseOnDemand]: 35/47 looper letters, 233 selfloop transitions, 83 changer transitions 0/332 dead transitions. [2025-02-06 18:43:16,166 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 231 places, 332 transitions, 4895 flow [2025-02-06 18:43:16,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-02-06 18:43:16,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2025-02-06 18:43:16,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 330 transitions. [2025-02-06 18:43:16,167 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6382978723404256 [2025-02-06 18:43:16,167 INFO L175 Difference]: Start difference. First operand has 221 places, 239 transitions, 3474 flow. Second operand 11 states and 330 transitions. [2025-02-06 18:43:16,167 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 231 places, 332 transitions, 4895 flow [2025-02-06 18:43:16,205 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 224 places, 332 transitions, 4574 flow, removed 96 selfloop flow, removed 7 redundant places. [2025-02-06 18:43:16,208 INFO L231 Difference]: Finished difference. Result has 227 places, 249 transitions, 3590 flow [2025-02-06 18:43:16,208 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=3231, PETRI_DIFFERENCE_MINUEND_PLACES=214, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=239, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=73, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=160, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=3590, PETRI_PLACES=227, PETRI_TRANSITIONS=249} [2025-02-06 18:43:16,209 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, 180 predicate places. [2025-02-06 18:43:16,209 INFO L471 AbstractCegarLoop]: Abstraction has has 227 places, 249 transitions, 3590 flow [2025-02-06 18:43:16,209 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 20.75) internal successors, (166), 8 states have internal predecessors, (166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 18:43:16,209 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:43:16,209 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 18:43:16,209 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2025-02-06 18:43:16,209 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2025-02-06 18:43:16,210 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:43:16,210 INFO L85 PathProgramCache]: Analyzing trace with hash 2067373231, now seen corresponding path program 9 times [2025-02-06 18:43:16,210 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:43:16,210 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [549011179] [2025-02-06 18:43:16,210 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-02-06 18:43:16,210 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:43:16,215 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 44 statements into 11 equivalence classes. [2025-02-06 18:43:16,216 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) and asserted 13 of 44 statements. [2025-02-06 18:43:16,216 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2025-02-06 18:43:16,216 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:43:16,275 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 18:43:16,275 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:43:16,275 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [549011179] [2025-02-06 18:43:16,275 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [549011179] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:43:16,275 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 18:43:16,276 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2025-02-06 18:43:16,276 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1010057284] [2025-02-06 18:43:16,276 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:43:16,276 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-02-06 18:43:16,276 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:43:16,276 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-02-06 18:43:16,276 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2025-02-06 18:43:16,283 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 47 [2025-02-06 18:43:16,283 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 227 places, 249 transitions, 3590 flow. Second operand has 8 states, 8 states have (on average 20.75) internal successors, (166), 8 states have internal predecessors, (166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 18:43:16,283 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:43:16,283 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 47 [2025-02-06 18:43:16,283 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:43:16,698 INFO L124 PetriNetUnfolderBase]: 602/1759 cut-off events. [2025-02-06 18:43:16,698 INFO L125 PetriNetUnfolderBase]: For 15528/15664 co-relation queries the response was YES. [2025-02-06 18:43:16,708 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8470 conditions, 1759 events. 602/1759 cut-off events. For 15528/15664 co-relation queries the response was YES. Maximal size of possible extension queue 67. Compared 12016 event pairs, 155 based on Foata normal form. 21/1757 useless extension candidates. Maximal degree in co-relation 8265. Up to 636 conditions per place. [2025-02-06 18:43:16,713 INFO L140 encePairwiseOnDemand]: 35/47 looper letters, 200 selfloop transitions, 92 changer transitions 0/308 dead transitions. [2025-02-06 18:43:16,713 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 234 places, 308 transitions, 4596 flow [2025-02-06 18:43:16,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-02-06 18:43:16,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2025-02-06 18:43:16,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 318 transitions. [2025-02-06 18:43:16,714 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6150870406189555 [2025-02-06 18:43:16,715 INFO L175 Difference]: Start difference. First operand has 227 places, 249 transitions, 3590 flow. Second operand 11 states and 318 transitions. [2025-02-06 18:43:16,715 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 234 places, 308 transitions, 4596 flow [2025-02-06 18:43:16,751 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 226 places, 308 transitions, 4434 flow, removed 27 selfloop flow, removed 8 redundant places. [2025-02-06 18:43:16,754 INFO L231 Difference]: Finished difference. Result has 229 places, 247 transitions, 3695 flow [2025-02-06 18:43:16,755 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=3343, PETRI_DIFFERENCE_MINUEND_PLACES=216, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=240, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=86, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=150, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=3695, PETRI_PLACES=229, PETRI_TRANSITIONS=247} [2025-02-06 18:43:16,755 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, 182 predicate places. [2025-02-06 18:43:16,755 INFO L471 AbstractCegarLoop]: Abstraction has has 229 places, 247 transitions, 3695 flow [2025-02-06 18:43:16,755 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 20.75) internal successors, (166), 8 states have internal predecessors, (166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 18:43:16,755 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:43:16,755 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 18:43:16,755 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2025-02-06 18:43:16,755 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2025-02-06 18:43:16,756 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:43:16,756 INFO L85 PathProgramCache]: Analyzing trace with hash 1602131094, now seen corresponding path program 1 times [2025-02-06 18:43:16,756 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:43:16,756 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1494759496] [2025-02-06 18:43:16,756 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:43:16,756 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:43:16,762 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 45 statements into 1 equivalence classes. [2025-02-06 18:43:16,775 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 45 of 45 statements. [2025-02-06 18:43:16,775 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:43:16,775 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:43:16,977 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 18:43:16,977 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:43:16,977 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1494759496] [2025-02-06 18:43:16,977 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1494759496] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:43:16,977 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 18:43:16,977 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2025-02-06 18:43:16,977 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [671879772] [2025-02-06 18:43:16,977 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:43:16,977 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2025-02-06 18:43:16,977 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:43:16,978 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2025-02-06 18:43:16,978 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2025-02-06 18:43:17,000 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 47 [2025-02-06 18:43:17,000 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 229 places, 247 transitions, 3695 flow. Second operand has 11 states, 11 states have (on average 16.454545454545453) internal successors, (181), 11 states have internal predecessors, (181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 18:43:17,000 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:43:17,000 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 47 [2025-02-06 18:43:17,000 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:43:17,571 INFO L124 PetriNetUnfolderBase]: 1098/2713 cut-off events. [2025-02-06 18:43:17,571 INFO L125 PetriNetUnfolderBase]: For 20962/20970 co-relation queries the response was YES. [2025-02-06 18:43:17,585 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12363 conditions, 2713 events. 1098/2713 cut-off events. For 20962/20970 co-relation queries the response was YES. Maximal size of possible extension queue 111. Compared 19308 event pairs, 439 based on Foata normal form. 47/2633 useless extension candidates. Maximal degree in co-relation 12158. Up to 1629 conditions per place. [2025-02-06 18:43:17,594 INFO L140 encePairwiseOnDemand]: 33/47 looper letters, 321 selfloop transitions, 47 changer transitions 0/380 dead transitions. [2025-02-06 18:43:17,594 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 241 places, 380 transitions, 5842 flow [2025-02-06 18:43:17,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-02-06 18:43:17,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2025-02-06 18:43:17,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 325 transitions. [2025-02-06 18:43:17,595 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5319148936170213 [2025-02-06 18:43:17,595 INFO L175 Difference]: Start difference. First operand has 229 places, 247 transitions, 3695 flow. Second operand 13 states and 325 transitions. [2025-02-06 18:43:17,595 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 241 places, 380 transitions, 5842 flow [2025-02-06 18:43:17,636 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 235 places, 380 transitions, 5630 flow, removed 11 selfloop flow, removed 6 redundant places. [2025-02-06 18:43:17,640 INFO L231 Difference]: Finished difference. Result has 242 places, 274 transitions, 3942 flow [2025-02-06 18:43:17,640 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=3548, PETRI_DIFFERENCE_MINUEND_PLACES=223, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=247, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=216, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=3942, PETRI_PLACES=242, PETRI_TRANSITIONS=274} [2025-02-06 18:43:17,641 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, 195 predicate places. [2025-02-06 18:43:17,641 INFO L471 AbstractCegarLoop]: Abstraction has has 242 places, 274 transitions, 3942 flow [2025-02-06 18:43:17,641 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 16.454545454545453) internal successors, (181), 11 states have internal predecessors, (181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 18:43:17,641 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:43:17,641 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 18:43:17,641 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2025-02-06 18:43:17,641 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2025-02-06 18:43:17,641 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:43:17,642 INFO L85 PathProgramCache]: Analyzing trace with hash -66422547, now seen corresponding path program 1 times [2025-02-06 18:43:17,642 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:43:17,642 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [606484852] [2025-02-06 18:43:17,642 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:43:17,642 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:43:17,650 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 45 statements into 1 equivalence classes. [2025-02-06 18:43:17,655 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 45 of 45 statements. [2025-02-06 18:43:17,655 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:43:17,655 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:43:17,907 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 18:43:17,907 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:43:17,907 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [606484852] [2025-02-06 18:43:17,907 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [606484852] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:43:17,907 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 18:43:17,907 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2025-02-06 18:43:17,907 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1492196164] [2025-02-06 18:43:17,907 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:43:17,907 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2025-02-06 18:43:17,907 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:43:17,907 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2025-02-06 18:43:17,908 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2025-02-06 18:43:17,943 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 47 [2025-02-06 18:43:17,943 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 242 places, 274 transitions, 3942 flow. Second operand has 11 states, 11 states have (on average 17.454545454545453) internal successors, (192), 11 states have internal predecessors, (192), 0 states have call successors, (0), 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 18:43:17,943 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:43:17,943 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 47 [2025-02-06 18:43:17,943 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:43:18,566 INFO L124 PetriNetUnfolderBase]: 1145/2864 cut-off events. [2025-02-06 18:43:18,566 INFO L125 PetriNetUnfolderBase]: For 23733/23758 co-relation queries the response was YES. [2025-02-06 18:43:18,582 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14006 conditions, 2864 events. 1145/2864 cut-off events. For 23733/23758 co-relation queries the response was YES. Maximal size of possible extension queue 126. Compared 20967 event pairs, 492 based on Foata normal form. 33/2850 useless extension candidates. Maximal degree in co-relation 13793. Up to 1886 conditions per place. [2025-02-06 18:43:18,593 INFO L140 encePairwiseOnDemand]: 34/47 looper letters, 321 selfloop transitions, 50 changer transitions 0/384 dead transitions. [2025-02-06 18:43:18,593 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 254 places, 384 transitions, 6096 flow [2025-02-06 18:43:18,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-02-06 18:43:18,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2025-02-06 18:43:18,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 313 transitions. [2025-02-06 18:43:18,594 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5122749590834698 [2025-02-06 18:43:18,594 INFO L175 Difference]: Start difference. First operand has 242 places, 274 transitions, 3942 flow. Second operand 13 states and 313 transitions. [2025-02-06 18:43:18,594 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 254 places, 384 transitions, 6096 flow [2025-02-06 18:43:18,646 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 252 places, 384 transitions, 6059 flow, removed 8 selfloop flow, removed 2 redundant places. [2025-02-06 18:43:18,650 INFO L231 Difference]: Finished difference. Result has 260 places, 293 transitions, 4330 flow [2025-02-06 18:43:18,650 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=3913, PETRI_DIFFERENCE_MINUEND_PLACES=240, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=274, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=33, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=231, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=4330, PETRI_PLACES=260, PETRI_TRANSITIONS=293} [2025-02-06 18:43:18,650 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, 213 predicate places. [2025-02-06 18:43:18,650 INFO L471 AbstractCegarLoop]: Abstraction has has 260 places, 293 transitions, 4330 flow [2025-02-06 18:43:18,651 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 17.454545454545453) internal successors, (192), 11 states have internal predecessors, (192), 0 states have call successors, (0), 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 18:43:18,651 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:43:18,651 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 18:43:18,651 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2025-02-06 18:43:18,651 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2025-02-06 18:43:18,651 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:43:18,651 INFO L85 PathProgramCache]: Analyzing trace with hash -1083134099, now seen corresponding path program 2 times [2025-02-06 18:43:18,651 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:43:18,651 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1910190383] [2025-02-06 18:43:18,651 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-06 18:43:18,651 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:43:18,658 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 45 statements into 2 equivalence classes. [2025-02-06 18:43:18,660 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 14 of 45 statements. [2025-02-06 18:43:18,660 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-06 18:43:18,660 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:43:18,738 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 18:43:18,739 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:43:18,739 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1910190383] [2025-02-06 18:43:18,739 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1910190383] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:43:18,739 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 18:43:18,739 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2025-02-06 18:43:18,739 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1265518639] [2025-02-06 18:43:18,739 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:43:18,739 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-02-06 18:43:18,739 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:43:18,739 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-02-06 18:43:18,739 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2025-02-06 18:43:18,755 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 47 [2025-02-06 18:43:18,755 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 260 places, 293 transitions, 4330 flow. Second operand has 10 states, 10 states have (on average 16.7) internal successors, (167), 10 states have internal predecessors, (167), 0 states have call successors, (0), 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 18:43:18,755 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:43:18,755 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 47 [2025-02-06 18:43:18,755 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:43:19,642 INFO L124 PetriNetUnfolderBase]: 1506/3556 cut-off events. [2025-02-06 18:43:19,643 INFO L125 PetriNetUnfolderBase]: For 31904/31944 co-relation queries the response was YES. [2025-02-06 18:43:19,669 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18456 conditions, 3556 events. 1506/3556 cut-off events. For 31904/31944 co-relation queries the response was YES. Maximal size of possible extension queue 149. Compared 25858 event pairs, 555 based on Foata normal form. 32/3536 useless extension candidates. Maximal degree in co-relation 18235. Up to 1119 conditions per place. [2025-02-06 18:43:19,681 INFO L140 encePairwiseOnDemand]: 33/47 looper letters, 317 selfloop transitions, 139 changer transitions 0/468 dead transitions. [2025-02-06 18:43:19,681 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 276 places, 468 transitions, 6958 flow [2025-02-06 18:43:19,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2025-02-06 18:43:19,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2025-02-06 18:43:19,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 425 transitions. [2025-02-06 18:43:19,684 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5319148936170213 [2025-02-06 18:43:19,684 INFO L175 Difference]: Start difference. First operand has 260 places, 293 transitions, 4330 flow. Second operand 17 states and 425 transitions. [2025-02-06 18:43:19,684 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 276 places, 468 transitions, 6958 flow [2025-02-06 18:43:19,778 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 271 places, 468 transitions, 6835 flow, removed 23 selfloop flow, removed 5 redundant places. [2025-02-06 18:43:19,784 INFO L231 Difference]: Finished difference. Result has 283 places, 356 transitions, 5677 flow [2025-02-06 18:43:19,784 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=4250, PETRI_DIFFERENCE_MINUEND_PLACES=255, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=293, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=76, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=196, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=5677, PETRI_PLACES=283, PETRI_TRANSITIONS=356} [2025-02-06 18:43:19,786 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, 236 predicate places. [2025-02-06 18:43:19,786 INFO L471 AbstractCegarLoop]: Abstraction has has 283 places, 356 transitions, 5677 flow [2025-02-06 18:43:19,786 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 16.7) internal successors, (167), 10 states have internal predecessors, (167), 0 states have call successors, (0), 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 18:43:19,786 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:43:19,786 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 18:43:19,787 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2025-02-06 18:43:19,787 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2025-02-06 18:43:19,787 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:43:19,787 INFO L85 PathProgramCache]: Analyzing trace with hash 833635730, now seen corresponding path program 2 times [2025-02-06 18:43:19,787 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:43:19,788 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1459708122] [2025-02-06 18:43:19,789 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-06 18:43:19,789 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:43:19,801 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 45 statements into 2 equivalence classes. [2025-02-06 18:43:19,804 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 14 of 45 statements. [2025-02-06 18:43:19,804 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-06 18:43:19,804 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:43:19,982 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 18:43:19,982 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:43:19,982 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1459708122] [2025-02-06 18:43:19,982 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1459708122] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:43:19,982 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 18:43:19,982 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2025-02-06 18:43:19,982 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [143728084] [2025-02-06 18:43:19,982 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:43:19,982 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-02-06 18:43:19,982 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:43:19,985 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-02-06 18:43:19,985 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2025-02-06 18:43:20,026 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 47 [2025-02-06 18:43:20,026 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 283 places, 356 transitions, 5677 flow. Second operand has 10 states, 10 states have (on average 16.7) internal successors, (167), 10 states have internal predecessors, (167), 0 states have call successors, (0), 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 18:43:20,026 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:43:20,026 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 47 [2025-02-06 18:43:20,026 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:43:21,226 INFO L124 PetriNetUnfolderBase]: 1626/3762 cut-off events. [2025-02-06 18:43:21,227 INFO L125 PetriNetUnfolderBase]: For 49427/49462 co-relation queries the response was YES. [2025-02-06 18:43:21,248 INFO L83 FinitePrefix]: Finished finitePrefix Result has 22404 conditions, 3762 events. 1626/3762 cut-off events. For 49427/49462 co-relation queries the response was YES. Maximal size of possible extension queue 158. Compared 27608 event pairs, 610 based on Foata normal form. 34/3744 useless extension candidates. Maximal degree in co-relation 22173. Up to 1442 conditions per place. [2025-02-06 18:43:21,257 INFO L140 encePairwiseOnDemand]: 33/47 looper letters, 389 selfloop transitions, 141 changer transitions 0/543 dead transitions. [2025-02-06 18:43:21,257 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 297 places, 543 transitions, 8721 flow [2025-02-06 18:43:21,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2025-02-06 18:43:21,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2025-02-06 18:43:21,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 403 transitions. [2025-02-06 18:43:21,258 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5716312056737589 [2025-02-06 18:43:21,258 INFO L175 Difference]: Start difference. First operand has 283 places, 356 transitions, 5677 flow. Second operand 15 states and 403 transitions. [2025-02-06 18:43:21,258 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 297 places, 543 transitions, 8721 flow [2025-02-06 18:43:21,367 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 295 places, 543 transitions, 8542 flow, removed 28 selfloop flow, removed 2 redundant places. [2025-02-06 18:43:21,373 INFO L231 Difference]: Finished difference. Result has 304 places, 389 transitions, 6494 flow [2025-02-06 18:43:21,373 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=5530, PETRI_DIFFERENCE_MINUEND_PLACES=281, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=356, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=112, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=240, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=6494, PETRI_PLACES=304, PETRI_TRANSITIONS=389} [2025-02-06 18:43:21,373 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, 257 predicate places. [2025-02-06 18:43:21,373 INFO L471 AbstractCegarLoop]: Abstraction has has 304 places, 389 transitions, 6494 flow [2025-02-06 18:43:21,374 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 16.7) internal successors, (167), 10 states have internal predecessors, (167), 0 states have call successors, (0), 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 18:43:21,374 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:43:21,374 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 18:43:21,374 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2025-02-06 18:43:21,374 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2025-02-06 18:43:21,374 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:43:21,374 INFO L85 PathProgramCache]: Analyzing trace with hash 1288424895, now seen corresponding path program 3 times [2025-02-06 18:43:21,374 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:43:21,374 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [828750237] [2025-02-06 18:43:21,374 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-02-06 18:43:21,374 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:43:21,381 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 45 statements into 11 equivalence classes. [2025-02-06 18:43:21,383 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) and asserted 14 of 45 statements. [2025-02-06 18:43:21,383 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2025-02-06 18:43:21,383 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:43:21,479 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 18:43:21,479 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:43:21,479 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [828750237] [2025-02-06 18:43:21,480 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [828750237] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:43:21,480 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 18:43:21,480 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2025-02-06 18:43:21,480 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [930768343] [2025-02-06 18:43:21,480 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:43:21,480 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-02-06 18:43:21,480 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:43:21,480 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-02-06 18:43:21,480 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2025-02-06 18:43:21,510 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 47 [2025-02-06 18:43:21,510 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 304 places, 389 transitions, 6494 flow. Second operand has 10 states, 10 states have (on average 16.7) internal successors, (167), 10 states have internal predecessors, (167), 0 states have call successors, (0), 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 18:43:21,510 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:43:21,510 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 47 [2025-02-06 18:43:21,510 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:43:22,670 INFO L124 PetriNetUnfolderBase]: 1754/4072 cut-off events. [2025-02-06 18:43:22,670 INFO L125 PetriNetUnfolderBase]: For 64223/64264 co-relation queries the response was YES. [2025-02-06 18:43:22,701 INFO L83 FinitePrefix]: Finished finitePrefix Result has 25953 conditions, 4072 events. 1754/4072 cut-off events. For 64223/64264 co-relation queries the response was YES. Maximal size of possible extension queue 171. Compared 30311 event pairs, 694 based on Foata normal form. 28/4045 useless extension candidates. Maximal degree in co-relation 25713. Up to 1395 conditions per place. [2025-02-06 18:43:22,712 INFO L140 encePairwiseOnDemand]: 33/47 looper letters, 393 selfloop transitions, 113 changer transitions 0/519 dead transitions. [2025-02-06 18:43:22,712 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 319 places, 519 transitions, 9007 flow [2025-02-06 18:43:22,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2025-02-06 18:43:22,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2025-02-06 18:43:22,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 409 transitions. [2025-02-06 18:43:22,714 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5438829787234043 [2025-02-06 18:43:22,714 INFO L175 Difference]: Start difference. First operand has 304 places, 389 transitions, 6494 flow. Second operand 16 states and 409 transitions. [2025-02-06 18:43:22,714 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 319 places, 519 transitions, 9007 flow [2025-02-06 18:43:22,860 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 317 places, 519 transitions, 8812 flow, removed 32 selfloop flow, removed 2 redundant places. [2025-02-06 18:43:22,867 INFO L231 Difference]: Finished difference. Result has 327 places, 421 transitions, 7211 flow [2025-02-06 18:43:22,867 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=6323, PETRI_DIFFERENCE_MINUEND_PLACES=302, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=389, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=86, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=296, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=7211, PETRI_PLACES=327, PETRI_TRANSITIONS=421} [2025-02-06 18:43:22,867 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, 280 predicate places. [2025-02-06 18:43:22,867 INFO L471 AbstractCegarLoop]: Abstraction has has 327 places, 421 transitions, 7211 flow [2025-02-06 18:43:22,868 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 16.7) internal successors, (167), 10 states have internal predecessors, (167), 0 states have call successors, (0), 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 18:43:22,868 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:43:22,868 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 18:43:22,868 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2025-02-06 18:43:22,868 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2025-02-06 18:43:22,868 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:43:22,868 INFO L85 PathProgramCache]: Analyzing trace with hash 1495177347, now seen corresponding path program 4 times [2025-02-06 18:43:22,868 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:43:22,869 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1303572937] [2025-02-06 18:43:22,869 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-02-06 18:43:22,869 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:43:22,875 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 45 statements into 2 equivalence classes. [2025-02-06 18:43:22,879 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 18:43:22,879 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-02-06 18:43:22,879 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:43:23,120 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 18:43:23,120 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:43:23,120 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1303572937] [2025-02-06 18:43:23,120 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1303572937] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:43:23,120 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 18:43:23,121 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2025-02-06 18:43:23,121 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [37898078] [2025-02-06 18:43:23,121 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:43:23,121 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2025-02-06 18:43:23,121 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:43:23,121 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2025-02-06 18:43:23,121 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2025-02-06 18:43:23,168 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 47 [2025-02-06 18:43:23,168 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 327 places, 421 transitions, 7211 flow. Second operand has 11 states, 11 states have (on average 17.454545454545453) internal successors, (192), 11 states have internal predecessors, (192), 0 states have call successors, (0), 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 18:43:23,168 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:43:23,168 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 47 [2025-02-06 18:43:23,168 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:43:24,263 INFO L124 PetriNetUnfolderBase]: 1652/3911 cut-off events. [2025-02-06 18:43:24,263 INFO L125 PetriNetUnfolderBase]: For 77442/77471 co-relation queries the response was YES. [2025-02-06 18:43:24,288 INFO L83 FinitePrefix]: Finished finitePrefix Result has 27003 conditions, 3911 events. 1652/3911 cut-off events. For 77442/77471 co-relation queries the response was YES. Maximal size of possible extension queue 183. Compared 29879 event pairs, 535 based on Foata normal form. 28/3884 useless extension candidates. Maximal degree in co-relation 26753. Up to 2683 conditions per place. [2025-02-06 18:43:24,298 INFO L140 encePairwiseOnDemand]: 33/47 looper letters, 430 selfloop transitions, 89 changer transitions 0/535 dead transitions. [2025-02-06 18:43:24,298 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 340 places, 535 transitions, 9937 flow [2025-02-06 18:43:24,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2025-02-06 18:43:24,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2025-02-06 18:43:24,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 337 transitions. [2025-02-06 18:43:24,299 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5121580547112462 [2025-02-06 18:43:24,299 INFO L175 Difference]: Start difference. First operand has 327 places, 421 transitions, 7211 flow. Second operand 14 states and 337 transitions. [2025-02-06 18:43:24,299 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 340 places, 535 transitions, 9937 flow [2025-02-06 18:43:24,489 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 338 places, 535 transitions, 9660 flow, removed 80 selfloop flow, removed 2 redundant places. [2025-02-06 18:43:24,496 INFO L231 Difference]: Finished difference. Result has 345 places, 450 transitions, 7868 flow [2025-02-06 18:43:24,496 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=6969, PETRI_DIFFERENCE_MINUEND_PLACES=325, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=421, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=63, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=338, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=7868, PETRI_PLACES=345, PETRI_TRANSITIONS=450} [2025-02-06 18:43:24,496 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, 298 predicate places. [2025-02-06 18:43:24,497 INFO L471 AbstractCegarLoop]: Abstraction has has 345 places, 450 transitions, 7868 flow [2025-02-06 18:43:24,497 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 17.454545454545453) internal successors, (192), 11 states have internal predecessors, (192), 0 states have call successors, (0), 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 18:43:24,497 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:43:24,497 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 18:43:24,497 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2025-02-06 18:43:24,497 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2025-02-06 18:43:24,498 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:43:24,498 INFO L85 PathProgramCache]: Analyzing trace with hash -1451992671, now seen corresponding path program 5 times [2025-02-06 18:43:24,498 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:43:24,498 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1701924025] [2025-02-06 18:43:24,498 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-02-06 18:43:24,498 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:43:24,504 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 45 statements into 11 equivalence classes. [2025-02-06 18:43:24,510 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) and asserted 45 of 45 statements. [2025-02-06 18:43:24,510 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) [2025-02-06 18:43:24,510 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:43:24,672 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 18:43:24,672 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:43:24,672 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1701924025] [2025-02-06 18:43:24,672 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1701924025] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:43:24,672 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 18:43:24,673 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2025-02-06 18:43:24,673 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1136846545] [2025-02-06 18:43:24,673 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:43:24,673 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2025-02-06 18:43:24,673 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:43:24,673 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2025-02-06 18:43:24,673 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2025-02-06 18:43:24,700 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 47 [2025-02-06 18:43:24,700 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 345 places, 450 transitions, 7868 flow. Second operand has 11 states, 11 states have (on average 16.545454545454547) internal successors, (182), 11 states have internal predecessors, (182), 0 states have call successors, (0), 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 18:43:24,700 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:43:24,700 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 47 [2025-02-06 18:43:24,700 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:43:26,129 INFO L124 PetriNetUnfolderBase]: 2073/4748 cut-off events. [2025-02-06 18:43:26,130 INFO L125 PetriNetUnfolderBase]: For 98445/98493 co-relation queries the response was YES. [2025-02-06 18:43:26,166 INFO L83 FinitePrefix]: Finished finitePrefix Result has 33322 conditions, 4748 events. 2073/4748 cut-off events. For 98445/98493 co-relation queries the response was YES. Maximal size of possible extension queue 205. Compared 36309 event pairs, 777 based on Foata normal form. 32/4721 useless extension candidates. Maximal degree in co-relation 33063. Up to 1714 conditions per place. [2025-02-06 18:43:26,184 INFO L140 encePairwiseOnDemand]: 32/47 looper letters, 391 selfloop transitions, 204 changer transitions 0/608 dead transitions. [2025-02-06 18:43:26,185 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 362 places, 608 transitions, 11254 flow [2025-02-06 18:43:26,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2025-02-06 18:43:26,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2025-02-06 18:43:26,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 434 transitions. [2025-02-06 18:43:26,186 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5130023640661938 [2025-02-06 18:43:26,186 INFO L175 Difference]: Start difference. First operand has 345 places, 450 transitions, 7868 flow. Second operand 18 states and 434 transitions. [2025-02-06 18:43:26,186 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 362 places, 608 transitions, 11254 flow [2025-02-06 18:43:26,531 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 358 places, 608 transitions, 11080 flow, removed 67 selfloop flow, removed 4 redundant places. [2025-02-06 18:43:26,539 INFO L231 Difference]: Finished difference. Result has 370 places, 509 transitions, 9669 flow [2025-02-06 18:43:26,540 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=7714, PETRI_DIFFERENCE_MINUEND_PLACES=341, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=450, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=146, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=273, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=9669, PETRI_PLACES=370, PETRI_TRANSITIONS=509} [2025-02-06 18:43:26,540 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, 323 predicate places. [2025-02-06 18:43:26,540 INFO L471 AbstractCegarLoop]: Abstraction has has 370 places, 509 transitions, 9669 flow [2025-02-06 18:43:26,540 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 16.545454545454547) internal successors, (182), 11 states have internal predecessors, (182), 0 states have call successors, (0), 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 18:43:26,540 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:43:26,540 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 18:43:26,540 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2025-02-06 18:43:26,541 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2025-02-06 18:43:26,541 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:43:26,541 INFO L85 PathProgramCache]: Analyzing trace with hash -593118141, now seen corresponding path program 6 times [2025-02-06 18:43:26,541 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:43:26,541 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1138209478] [2025-02-06 18:43:26,542 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-02-06 18:43:26,542 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:43:26,550 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 45 statements into 11 equivalence classes. [2025-02-06 18:43:26,551 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) and asserted 14 of 45 statements. [2025-02-06 18:43:26,551 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2025-02-06 18:43:26,551 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:43:26,659 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 18:43:26,659 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:43:26,659 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1138209478] [2025-02-06 18:43:26,659 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1138209478] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:43:26,659 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 18:43:26,659 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2025-02-06 18:43:26,659 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1947741014] [2025-02-06 18:43:26,659 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:43:26,660 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-02-06 18:43:26,660 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:43:26,660 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-02-06 18:43:26,660 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2025-02-06 18:43:26,694 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 47 [2025-02-06 18:43:26,694 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 370 places, 509 transitions, 9669 flow. Second operand has 10 states, 10 states have (on average 16.7) internal successors, (167), 10 states have internal predecessors, (167), 0 states have call successors, (0), 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 18:43:26,694 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:43:26,694 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 47 [2025-02-06 18:43:26,694 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:43:28,495 INFO L124 PetriNetUnfolderBase]: 2348/5259 cut-off events. [2025-02-06 18:43:28,495 INFO L125 PetriNetUnfolderBase]: For 138513/138577 co-relation queries the response was YES. [2025-02-06 18:43:28,544 INFO L83 FinitePrefix]: Finished finitePrefix Result has 40292 conditions, 5259 events. 2348/5259 cut-off events. For 138513/138577 co-relation queries the response was YES. Maximal size of possible extension queue 231. Compared 40563 event pairs, 801 based on Foata normal form. 32/5232 useless extension candidates. Maximal degree in co-relation 40020. Up to 1874 conditions per place. [2025-02-06 18:43:28,565 INFO L140 encePairwiseOnDemand]: 33/47 looper letters, 430 selfloop transitions, 279 changer transitions 0/722 dead transitions. [2025-02-06 18:43:28,565 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 392 places, 722 transitions, 14370 flow [2025-02-06 18:43:28,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2025-02-06 18:43:28,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2025-02-06 18:43:28,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 560 transitions. [2025-02-06 18:43:28,566 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5180388529139686 [2025-02-06 18:43:28,566 INFO L175 Difference]: Start difference. First operand has 370 places, 509 transitions, 9669 flow. Second operand 23 states and 560 transitions. [2025-02-06 18:43:28,566 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 392 places, 722 transitions, 14370 flow [2025-02-06 18:43:29,079 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 389 places, 722 transitions, 14097 flow, removed 103 selfloop flow, removed 3 redundant places. [2025-02-06 18:43:29,089 INFO L231 Difference]: Finished difference. Result has 402 places, 594 transitions, 12354 flow [2025-02-06 18:43:29,090 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=9417, PETRI_DIFFERENCE_MINUEND_PLACES=367, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=509, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=200, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=275, PETRI_DIFFERENCE_SUBTRAHEND_STATES=23, PETRI_FLOW=12354, PETRI_PLACES=402, PETRI_TRANSITIONS=594} [2025-02-06 18:43:29,091 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, 355 predicate places. [2025-02-06 18:43:29,091 INFO L471 AbstractCegarLoop]: Abstraction has has 402 places, 594 transitions, 12354 flow [2025-02-06 18:43:29,091 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 16.7) internal successors, (167), 10 states have internal predecessors, (167), 0 states have call successors, (0), 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 18:43:29,091 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:43:29,091 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 18:43:29,091 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2025-02-06 18:43:29,092 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2025-02-06 18:43:29,092 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:43:29,092 INFO L85 PathProgramCache]: Analyzing trace with hash -1058497781, now seen corresponding path program 7 times [2025-02-06 18:43:29,092 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:43:29,092 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2146693269] [2025-02-06 18:43:29,092 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2025-02-06 18:43:29,093 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:43:29,101 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 45 statements into 1 equivalence classes. [2025-02-06 18:43:29,106 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 45 of 45 statements. [2025-02-06 18:43:29,106 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:43:29,106 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:43:29,278 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 18:43:29,278 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:43:29,278 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2146693269] [2025-02-06 18:43:29,278 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2146693269] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:43:29,279 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 18:43:29,279 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2025-02-06 18:43:29,279 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [724035788] [2025-02-06 18:43:29,279 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:43:29,279 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2025-02-06 18:43:29,279 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:43:29,279 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2025-02-06 18:43:29,280 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2025-02-06 18:43:29,300 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 47 [2025-02-06 18:43:29,300 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 402 places, 594 transitions, 12354 flow. Second operand has 11 states, 11 states have (on average 16.545454545454547) internal successors, (182), 11 states have internal predecessors, (182), 0 states have call successors, (0), 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 18:43:29,300 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:43:29,300 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 47 [2025-02-06 18:43:29,300 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:43:31,450 INFO L124 PetriNetUnfolderBase]: 2534/5606 cut-off events. [2025-02-06 18:43:31,450 INFO L125 PetriNetUnfolderBase]: For 186698/186757 co-relation queries the response was YES. [2025-02-06 18:43:31,500 INFO L83 FinitePrefix]: Finished finitePrefix Result has 46032 conditions, 5606 events. 2534/5606 cut-off events. For 186698/186757 co-relation queries the response was YES. Maximal size of possible extension queue 233. Compared 43885 event pairs, 719 based on Foata normal form. 32/5596 useless extension candidates. Maximal degree in co-relation 45749. Up to 2419 conditions per place. [2025-02-06 18:43:31,521 INFO L140 encePairwiseOnDemand]: 32/47 looper letters, 519 selfloop transitions, 295 changer transitions 0/827 dead transitions. [2025-02-06 18:43:31,521 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 423 places, 827 transitions, 17632 flow [2025-02-06 18:43:31,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2025-02-06 18:43:31,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2025-02-06 18:43:31,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 533 transitions. [2025-02-06 18:43:31,522 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5154738878143134 [2025-02-06 18:43:31,522 INFO L175 Difference]: Start difference. First operand has 402 places, 594 transitions, 12354 flow. Second operand 22 states and 533 transitions. [2025-02-06 18:43:31,523 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 423 places, 827 transitions, 17632 flow [2025-02-06 18:43:32,221 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 420 places, 827 transitions, 17218 flow, removed 157 selfloop flow, removed 3 redundant places. [2025-02-06 18:43:32,232 INFO L231 Difference]: Finished difference. Result has 435 places, 650 transitions, 14557 flow [2025-02-06 18:43:32,233 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=11963, PETRI_DIFFERENCE_MINUEND_PLACES=399, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=594, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=245, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=335, PETRI_DIFFERENCE_SUBTRAHEND_STATES=22, PETRI_FLOW=14557, PETRI_PLACES=435, PETRI_TRANSITIONS=650} [2025-02-06 18:43:32,233 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, 388 predicate places. [2025-02-06 18:43:32,233 INFO L471 AbstractCegarLoop]: Abstraction has has 435 places, 650 transitions, 14557 flow [2025-02-06 18:43:32,233 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 16.545454545454547) internal successors, (182), 11 states have internal predecessors, (182), 0 states have call successors, (0), 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 18:43:32,233 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:43:32,233 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 18:43:32,233 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2025-02-06 18:43:32,233 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2025-02-06 18:43:32,234 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:43:32,234 INFO L85 PathProgramCache]: Analyzing trace with hash -1089772572, now seen corresponding path program 3 times [2025-02-06 18:43:32,234 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:43:32,234 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1803815897] [2025-02-06 18:43:32,234 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-02-06 18:43:32,234 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:43:32,240 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 45 statements into 11 equivalence classes. [2025-02-06 18:43:32,242 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) and asserted 14 of 45 statements. [2025-02-06 18:43:32,242 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2025-02-06 18:43:32,242 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:43:32,318 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 18:43:32,319 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:43:32,319 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1803815897] [2025-02-06 18:43:32,319 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1803815897] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:43:32,319 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 18:43:32,319 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2025-02-06 18:43:32,319 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1355797395] [2025-02-06 18:43:32,319 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:43:32,319 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-02-06 18:43:32,320 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:43:32,320 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-02-06 18:43:32,320 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2025-02-06 18:43:32,334 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 47 [2025-02-06 18:43:32,334 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 435 places, 650 transitions, 14557 flow. Second operand has 10 states, 10 states have (on average 16.7) internal successors, (167), 10 states have internal predecessors, (167), 0 states have call successors, (0), 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 18:43:32,334 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:43:32,334 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 47 [2025-02-06 18:43:32,335 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:43:34,938 INFO L124 PetriNetUnfolderBase]: 2766/6182 cut-off events. [2025-02-06 18:43:34,938 INFO L125 PetriNetUnfolderBase]: For 228158/228274 co-relation queries the response was YES. [2025-02-06 18:43:35,025 INFO L83 FinitePrefix]: Finished finitePrefix Result has 51483 conditions, 6182 events. 2766/6182 cut-off events. For 228158/228274 co-relation queries the response was YES. Maximal size of possible extension queue 267. Compared 49592 event pairs, 992 based on Foata normal form. 60/6167 useless extension candidates. Maximal degree in co-relation 51183. Up to 2784 conditions per place. [2025-02-06 18:43:35,050 INFO L140 encePairwiseOnDemand]: 32/47 looper letters, 683 selfloop transitions, 186 changer transitions 0/886 dead transitions. [2025-02-06 18:43:35,050 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 452 places, 886 transitions, 20205 flow [2025-02-06 18:43:35,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2025-02-06 18:43:35,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2025-02-06 18:43:35,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 458 transitions. [2025-02-06 18:43:35,051 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.541371158392435 [2025-02-06 18:43:35,051 INFO L175 Difference]: Start difference. First operand has 435 places, 650 transitions, 14557 flow. Second operand 18 states and 458 transitions. [2025-02-06 18:43:35,051 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 452 places, 886 transitions, 20205 flow [2025-02-06 18:43:36,033 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 451 places, 886 transitions, 19634 flow, removed 285 selfloop flow, removed 1 redundant places. [2025-02-06 18:43:36,045 INFO L231 Difference]: Finished difference. Result has 462 places, 696 transitions, 15650 flow [2025-02-06 18:43:36,046 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=14114, PETRI_DIFFERENCE_MINUEND_PLACES=434, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=650, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=143, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=493, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=15650, PETRI_PLACES=462, PETRI_TRANSITIONS=696} [2025-02-06 18:43:36,046 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, 415 predicate places. [2025-02-06 18:43:36,046 INFO L471 AbstractCegarLoop]: Abstraction has has 462 places, 696 transitions, 15650 flow [2025-02-06 18:43:36,046 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 16.7) internal successors, (167), 10 states have internal predecessors, (167), 0 states have call successors, (0), 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 18:43:36,046 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:43:36,046 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 18:43:36,046 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2025-02-06 18:43:36,046 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2025-02-06 18:43:36,047 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:43:36,047 INFO L85 PathProgramCache]: Analyzing trace with hash 622007556, now seen corresponding path program 4 times [2025-02-06 18:43:36,047 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:43:36,047 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [732818047] [2025-02-06 18:43:36,047 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-02-06 18:43:36,047 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:43:36,059 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 45 statements into 2 equivalence classes. [2025-02-06 18:43:36,067 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 18:43:36,067 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-02-06 18:43:36,067 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:43:36,337 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 18:43:36,337 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:43:36,338 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [732818047] [2025-02-06 18:43:36,338 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [732818047] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:43:36,338 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 18:43:36,338 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2025-02-06 18:43:36,338 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [317477509] [2025-02-06 18:43:36,338 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:43:36,339 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2025-02-06 18:43:36,339 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:43:36,339 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2025-02-06 18:43:36,340 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2025-02-06 18:43:36,369 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 47 [2025-02-06 18:43:36,370 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 462 places, 696 transitions, 15650 flow. Second operand has 11 states, 11 states have (on average 16.545454545454547) internal successors, (182), 11 states have internal predecessors, (182), 0 states have call successors, (0), 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 18:43:36,370 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:43:36,370 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 47 [2025-02-06 18:43:36,370 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:43:38,618 INFO L124 PetriNetUnfolderBase]: 2953/6560 cut-off events. [2025-02-06 18:43:38,618 INFO L125 PetriNetUnfolderBase]: For 263046/263172 co-relation queries the response was YES. [2025-02-06 18:43:38,694 INFO L83 FinitePrefix]: Finished finitePrefix Result has 56979 conditions, 6560 events. 2953/6560 cut-off events. For 263046/263172 co-relation queries the response was YES. Maximal size of possible extension queue 281. Compared 53156 event pairs, 1037 based on Foata normal form. 64/6543 useless extension candidates. Maximal degree in co-relation 56668. Up to 2783 conditions per place. [2025-02-06 18:43:38,718 INFO L140 encePairwiseOnDemand]: 31/47 looper letters, 688 selfloop transitions, 223 changer transitions 0/928 dead transitions. [2025-02-06 18:43:38,718 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 479 places, 928 transitions, 21501 flow [2025-02-06 18:43:38,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2025-02-06 18:43:38,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2025-02-06 18:43:38,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 446 transitions. [2025-02-06 18:43:38,719 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5271867612293144 [2025-02-06 18:43:38,719 INFO L175 Difference]: Start difference. First operand has 462 places, 696 transitions, 15650 flow. Second operand 18 states and 446 transitions. [2025-02-06 18:43:38,719 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 479 places, 928 transitions, 21501 flow [2025-02-06 18:43:39,891 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 476 places, 928 transitions, 21260 flow, removed 60 selfloop flow, removed 3 redundant places. [2025-02-06 18:43:39,904 INFO L231 Difference]: Finished difference. Result has 487 places, 741 transitions, 17355 flow [2025-02-06 18:43:39,904 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=15451, PETRI_DIFFERENCE_MINUEND_PLACES=459, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=696, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=180, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=500, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=17355, PETRI_PLACES=487, PETRI_TRANSITIONS=741} [2025-02-06 18:43:39,904 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, 440 predicate places. [2025-02-06 18:43:39,904 INFO L471 AbstractCegarLoop]: Abstraction has has 487 places, 741 transitions, 17355 flow [2025-02-06 18:43:39,905 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 16.545454545454547) internal successors, (182), 11 states have internal predecessors, (182), 0 states have call successors, (0), 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 18:43:39,905 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:43:39,905 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 18:43:39,905 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2025-02-06 18:43:39,905 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2025-02-06 18:43:39,906 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:43:39,906 INFO L85 PathProgramCache]: Analyzing trace with hash -292278234, now seen corresponding path program 5 times [2025-02-06 18:43:39,906 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:43:39,906 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1943177076] [2025-02-06 18:43:39,906 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-02-06 18:43:39,906 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:43:39,913 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 45 statements into 11 equivalence classes. [2025-02-06 18:43:39,922 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) and asserted 45 of 45 statements. [2025-02-06 18:43:39,926 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) [2025-02-06 18:43:39,926 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:43:40,311 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 18:43:40,311 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:43:40,311 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1943177076] [2025-02-06 18:43:40,311 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1943177076] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:43:40,311 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 18:43:40,311 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2025-02-06 18:43:40,311 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [267582846] [2025-02-06 18:43:40,311 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:43:40,312 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2025-02-06 18:43:40,312 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:43:40,312 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2025-02-06 18:43:40,312 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2025-02-06 18:43:40,340 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 47 [2025-02-06 18:43:40,340 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 487 places, 741 transitions, 17355 flow. Second operand has 11 states, 11 states have (on average 16.454545454545453) internal successors, (181), 11 states have internal predecessors, (181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 18:43:40,340 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:43:40,340 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 47 [2025-02-06 18:43:40,340 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:43:42,723 INFO L124 PetriNetUnfolderBase]: 2909/6499 cut-off events. [2025-02-06 18:43:42,724 INFO L125 PetriNetUnfolderBase]: For 300021/300058 co-relation queries the response was YES. [2025-02-06 18:43:42,811 INFO L83 FinitePrefix]: Finished finitePrefix Result has 59991 conditions, 6499 events. 2909/6499 cut-off events. For 300021/300058 co-relation queries the response was YES. Maximal size of possible extension queue 311. Compared 53663 event pairs, 820 based on Foata normal form. 48/6486 useless extension candidates. Maximal degree in co-relation 59669. Up to 4523 conditions per place. [2025-02-06 18:43:42,840 INFO L140 encePairwiseOnDemand]: 32/47 looper letters, 814 selfloop transitions, 110 changer transitions 0/944 dead transitions. [2025-02-06 18:43:42,841 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 500 places, 944 transitions, 22835 flow [2025-02-06 18:43:42,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2025-02-06 18:43:42,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2025-02-06 18:43:42,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 341 transitions. [2025-02-06 18:43:42,842 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5182370820668692 [2025-02-06 18:43:42,842 INFO L175 Difference]: Start difference. First operand has 487 places, 741 transitions, 17355 flow. Second operand 14 states and 341 transitions. [2025-02-06 18:43:42,842 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 500 places, 944 transitions, 22835 flow [2025-02-06 18:43:44,540 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 498 places, 944 transitions, 22671 flow, removed 79 selfloop flow, removed 2 redundant places. [2025-02-06 18:43:44,552 INFO L231 Difference]: Finished difference. Result has 506 places, 766 transitions, 18285 flow [2025-02-06 18:43:44,553 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=17213, PETRI_DIFFERENCE_MINUEND_PLACES=485, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=741, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=88, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=637, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=18285, PETRI_PLACES=506, PETRI_TRANSITIONS=766} [2025-02-06 18:43:44,553 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, 459 predicate places. [2025-02-06 18:43:44,553 INFO L471 AbstractCegarLoop]: Abstraction has has 506 places, 766 transitions, 18285 flow [2025-02-06 18:43:44,554 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 16.454545454545453) internal successors, (181), 11 states have internal predecessors, (181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 18:43:44,554 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:43:44,554 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 18:43:44,554 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2025-02-06 18:43:44,554 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2025-02-06 18:43:44,555 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:43:44,555 INFO L85 PathProgramCache]: Analyzing trace with hash 1886191055, now seen corresponding path program 8 times [2025-02-06 18:43:44,555 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:43:44,555 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1468773657] [2025-02-06 18:43:44,555 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-06 18:43:44,555 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:43:44,564 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 45 statements into 2 equivalence classes. [2025-02-06 18:43:44,566 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 14 of 45 statements. [2025-02-06 18:43:44,566 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-06 18:43:44,566 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:43:44,638 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 18:43:44,638 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:43:44,638 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1468773657] [2025-02-06 18:43:44,639 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1468773657] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:43:44,639 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 18:43:44,639 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2025-02-06 18:43:44,639 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1261398196] [2025-02-06 18:43:44,639 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:43:44,639 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-02-06 18:43:44,639 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:43:44,639 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-02-06 18:43:44,639 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2025-02-06 18:43:44,654 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 47 [2025-02-06 18:43:44,654 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 506 places, 766 transitions, 18285 flow. Second operand has 10 states, 10 states have (on average 16.7) internal successors, (167), 10 states have internal predecessors, (167), 0 states have call successors, (0), 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 18:43:44,654 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:43:44,654 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 47 [2025-02-06 18:43:44,654 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:43:47,156 INFO L124 PetriNetUnfolderBase]: 3282/7241 cut-off events. [2025-02-06 18:43:47,156 INFO L125 PetriNetUnfolderBase]: For 348819/348892 co-relation queries the response was YES. [2025-02-06 18:43:47,271 INFO L83 FinitePrefix]: Finished finitePrefix Result has 67913 conditions, 7241 events. 3282/7241 cut-off events. For 348819/348892 co-relation queries the response was YES. Maximal size of possible extension queue 331. Compared 59626 event pairs, 1228 based on Foata normal form. 27/7178 useless extension candidates. Maximal degree in co-relation 67583. Up to 2633 conditions per place. [2025-02-06 18:43:47,540 INFO L140 encePairwiseOnDemand]: 33/47 looper letters, 677 selfloop transitions, 196 changer transitions 0/888 dead transitions. [2025-02-06 18:43:47,540 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 523 places, 888 transitions, 22348 flow [2025-02-06 18:43:47,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2025-02-06 18:43:47,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2025-02-06 18:43:47,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 451 transitions. [2025-02-06 18:43:47,541 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.533096926713948 [2025-02-06 18:43:47,541 INFO L175 Difference]: Start difference. First operand has 506 places, 766 transitions, 18285 flow. Second operand 18 states and 451 transitions. [2025-02-06 18:43:47,542 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 523 places, 888 transitions, 22348 flow [2025-02-06 18:43:49,366 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 522 places, 888 transitions, 22142 flow, removed 100 selfloop flow, removed 1 redundant places. [2025-02-06 18:43:49,378 INFO L231 Difference]: Finished difference. Result has 533 places, 796 transitions, 19702 flow [2025-02-06 18:43:49,379 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=18113, PETRI_DIFFERENCE_MINUEND_PLACES=505, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=766, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=167, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=587, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=19702, PETRI_PLACES=533, PETRI_TRANSITIONS=796} [2025-02-06 18:43:49,379 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, 486 predicate places. [2025-02-06 18:43:49,380 INFO L471 AbstractCegarLoop]: Abstraction has has 533 places, 796 transitions, 19702 flow [2025-02-06 18:43:49,380 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 16.7) internal successors, (167), 10 states have internal predecessors, (167), 0 states have call successors, (0), 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 18:43:49,380 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:43:49,380 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 18:43:49,380 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2025-02-06 18:43:49,380 INFO L396 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2025-02-06 18:43:49,381 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:43:49,381 INFO L85 PathProgramCache]: Analyzing trace with hash -694000411, now seen corresponding path program 9 times [2025-02-06 18:43:49,381 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:43:49,381 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [306197250] [2025-02-06 18:43:49,381 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-02-06 18:43:49,381 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:43:49,388 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 45 statements into 11 equivalence classes. [2025-02-06 18:43:49,390 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) and asserted 14 of 45 statements. [2025-02-06 18:43:49,390 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2025-02-06 18:43:49,390 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:43:49,505 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 18:43:49,505 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:43:49,505 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [306197250] [2025-02-06 18:43:49,506 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [306197250] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:43:49,506 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 18:43:49,506 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2025-02-06 18:43:49,506 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1720719021] [2025-02-06 18:43:49,506 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:43:49,506 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-02-06 18:43:49,506 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:43:49,506 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-02-06 18:43:49,506 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2025-02-06 18:43:49,544 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 47 [2025-02-06 18:43:49,544 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 533 places, 796 transitions, 19702 flow. Second operand has 10 states, 10 states have (on average 16.7) internal successors, (167), 10 states have internal predecessors, (167), 0 states have call successors, (0), 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 18:43:49,544 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:43:49,544 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 47 [2025-02-06 18:43:49,544 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:43:53,026 INFO L124 PetriNetUnfolderBase]: 3387/7464 cut-off events. [2025-02-06 18:43:53,026 INFO L125 PetriNetUnfolderBase]: For 410622/410698 co-relation queries the response was YES. [2025-02-06 18:43:53,117 INFO L83 FinitePrefix]: Finished finitePrefix Result has 72803 conditions, 7464 events. 3387/7464 cut-off events. For 410622/410698 co-relation queries the response was YES. Maximal size of possible extension queue 347. Compared 61788 event pairs, 1268 based on Foata normal form. 26/7398 useless extension candidates. Maximal degree in co-relation 72463. Up to 2783 conditions per place. [2025-02-06 18:43:53,144 INFO L140 encePairwiseOnDemand]: 33/47 looper letters, 688 selfloop transitions, 215 changer transitions 0/918 dead transitions. [2025-02-06 18:43:53,144 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 549 places, 918 transitions, 24000 flow [2025-02-06 18:43:53,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2025-02-06 18:43:53,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2025-02-06 18:43:53,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 424 transitions. [2025-02-06 18:43:53,145 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5306633291614519 [2025-02-06 18:43:53,146 INFO L175 Difference]: Start difference. First operand has 533 places, 796 transitions, 19702 flow. Second operand 17 states and 424 transitions. [2025-02-06 18:43:53,146 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 549 places, 918 transitions, 24000 flow [2025-02-06 18:43:54,900 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 546 places, 918 transitions, 23595 flow, removed 118 selfloop flow, removed 3 redundant places. [2025-02-06 18:43:54,913 INFO L231 Difference]: Finished difference. Result has 557 places, 829 transitions, 21191 flow [2025-02-06 18:43:54,913 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=19311, PETRI_DIFFERENCE_MINUEND_PLACES=530, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=796, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=183, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=599, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=21191, PETRI_PLACES=557, PETRI_TRANSITIONS=829} [2025-02-06 18:43:54,914 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, 510 predicate places. [2025-02-06 18:43:54,914 INFO L471 AbstractCegarLoop]: Abstraction has has 557 places, 829 transitions, 21191 flow [2025-02-06 18:43:54,915 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 16.7) internal successors, (167), 10 states have internal predecessors, (167), 0 states have call successors, (0), 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 18:43:54,915 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:43:54,915 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 18:43:54,915 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2025-02-06 18:43:54,915 INFO L396 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2025-02-06 18:43:54,916 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:43:54,916 INFO L85 PathProgramCache]: Analyzing trace with hash 137168489, now seen corresponding path program 10 times [2025-02-06 18:43:54,916 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:43:54,916 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1548864165] [2025-02-06 18:43:54,916 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-02-06 18:43:54,916 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:43:54,922 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 45 statements into 2 equivalence classes. [2025-02-06 18:43:54,926 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 18:43:54,926 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-02-06 18:43:54,926 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:43:55,089 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 18:43:55,089 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:43:55,089 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1548864165] [2025-02-06 18:43:55,089 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1548864165] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:43:55,089 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 18:43:55,089 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2025-02-06 18:43:55,090 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [944358842] [2025-02-06 18:43:55,090 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:43:55,090 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2025-02-06 18:43:55,090 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:43:55,090 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2025-02-06 18:43:55,090 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2025-02-06 18:43:55,113 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 47 [2025-02-06 18:43:55,114 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 557 places, 829 transitions, 21191 flow. Second operand has 11 states, 11 states have (on average 16.545454545454547) internal successors, (182), 11 states have internal predecessors, (182), 0 states have call successors, (0), 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 18:43:55,114 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:43:55,114 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 47 [2025-02-06 18:43:55,114 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:43:58,602 INFO L124 PetriNetUnfolderBase]: 3486/7654 cut-off events. [2025-02-06 18:43:58,605 INFO L125 PetriNetUnfolderBase]: For 475937/476012 co-relation queries the response was YES. [2025-02-06 18:43:58,728 INFO L83 FinitePrefix]: Finished finitePrefix Result has 77433 conditions, 7654 events. 3486/7654 cut-off events. For 475937/476012 co-relation queries the response was YES. Maximal size of possible extension queue 358. Compared 63650 event pairs, 1305 based on Foata normal form. 26/7588 useless extension candidates. Maximal degree in co-relation 77082. Up to 2932 conditions per place. [2025-02-06 18:43:58,760 INFO L140 encePairwiseOnDemand]: 32/47 looper letters, 695 selfloop transitions, 235 changer transitions 0/945 dead transitions. [2025-02-06 18:43:58,760 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 574 places, 945 transitions, 25440 flow [2025-02-06 18:43:58,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2025-02-06 18:43:58,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2025-02-06 18:43:58,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 444 transitions. [2025-02-06 18:43:58,761 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.524822695035461 [2025-02-06 18:43:58,761 INFO L175 Difference]: Start difference. First operand has 557 places, 829 transitions, 21191 flow. Second operand 18 states and 444 transitions. [2025-02-06 18:43:58,761 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 574 places, 945 transitions, 25440 flow [2025-02-06 18:44:01,260 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 571 places, 945 transitions, 25093 flow, removed 138 selfloop flow, removed 3 redundant places. [2025-02-06 18:44:01,274 INFO L231 Difference]: Finished difference. Result has 580 places, 855 transitions, 22611 flow [2025-02-06 18:44:01,275 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=20850, PETRI_DIFFERENCE_MINUEND_PLACES=554, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=829, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=210, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=611, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=22611, PETRI_PLACES=580, PETRI_TRANSITIONS=855} [2025-02-06 18:44:01,275 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, 533 predicate places. [2025-02-06 18:44:01,275 INFO L471 AbstractCegarLoop]: Abstraction has has 580 places, 855 transitions, 22611 flow [2025-02-06 18:44:01,276 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 16.545454545454547) internal successors, (182), 11 states have internal predecessors, (182), 0 states have call successors, (0), 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 18:44:01,276 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:44:01,276 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 18:44:01,276 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2025-02-06 18:44:01,276 INFO L396 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2025-02-06 18:44:01,277 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:44:01,277 INFO L85 PathProgramCache]: Analyzing trace with hash -714413825, now seen corresponding path program 11 times [2025-02-06 18:44:01,277 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:44:01,277 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [688494741] [2025-02-06 18:44:01,277 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-02-06 18:44:01,277 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:44:01,282 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 45 statements into 11 equivalence classes. [2025-02-06 18:44:01,289 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) and asserted 45 of 45 statements. [2025-02-06 18:44:01,289 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) [2025-02-06 18:44:01,289 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:44:01,449 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 18:44:01,449 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:44:01,450 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [688494741] [2025-02-06 18:44:01,450 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [688494741] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:44:01,450 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 18:44:01,450 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2025-02-06 18:44:01,450 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [410589240] [2025-02-06 18:44:01,450 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:44:01,450 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2025-02-06 18:44:01,450 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:44:01,450 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2025-02-06 18:44:01,451 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2025-02-06 18:44:01,488 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 47 [2025-02-06 18:44:01,488 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 580 places, 855 transitions, 22611 flow. Second operand has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 18:44:01,488 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:44:01,489 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 47 [2025-02-06 18:44:01,489 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:44:04,644 INFO L124 PetriNetUnfolderBase]: 3709/7989 cut-off events. [2025-02-06 18:44:04,645 INFO L125 PetriNetUnfolderBase]: For 557731/557819 co-relation queries the response was YES. [2025-02-06 18:44:04,747 INFO L83 FinitePrefix]: Finished finitePrefix Result has 83334 conditions, 7989 events. 3709/7989 cut-off events. For 557731/557819 co-relation queries the response was YES. Maximal size of possible extension queue 346. Compared 65588 event pairs, 1444 based on Foata normal form. 34/7965 useless extension candidates. Maximal degree in co-relation 82973. Up to 3180 conditions per place. [2025-02-06 18:44:04,776 INFO L140 encePairwiseOnDemand]: 32/47 looper letters, 807 selfloop transitions, 173 changer transitions 0/994 dead transitions. [2025-02-06 18:44:04,776 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 597 places, 994 transitions, 27532 flow [2025-02-06 18:44:04,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2025-02-06 18:44:04,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2025-02-06 18:44:04,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 411 transitions. [2025-02-06 18:44:04,777 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4858156028368794 [2025-02-06 18:44:04,777 INFO L175 Difference]: Start difference. First operand has 580 places, 855 transitions, 22611 flow. Second operand 18 states and 411 transitions. [2025-02-06 18:44:04,777 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 597 places, 994 transitions, 27532 flow [2025-02-06 18:44:07,788 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 592 places, 994 transitions, 27086 flow, removed 158 selfloop flow, removed 5 redundant places. [2025-02-06 18:44:07,802 INFO L231 Difference]: Finished difference. Result has 603 places, 889 transitions, 23987 flow [2025-02-06 18:44:07,803 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=22177, PETRI_DIFFERENCE_MINUEND_PLACES=575, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=855, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=141, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=701, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=23987, PETRI_PLACES=603, PETRI_TRANSITIONS=889} [2025-02-06 18:44:07,803 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, 556 predicate places. [2025-02-06 18:44:07,803 INFO L471 AbstractCegarLoop]: Abstraction has has 603 places, 889 transitions, 23987 flow [2025-02-06 18:44:07,804 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 18:44:07,804 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:44:07,804 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 18:44:07,804 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2025-02-06 18:44:07,804 INFO L396 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2025-02-06 18:44:07,805 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:44:07,805 INFO L85 PathProgramCache]: Analyzing trace with hash 1865777641, now seen corresponding path program 12 times [2025-02-06 18:44:07,805 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:44:07,805 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1307164161] [2025-02-06 18:44:07,805 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-02-06 18:44:07,805 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:44:07,811 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 45 statements into 11 equivalence classes. [2025-02-06 18:44:07,812 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) and asserted 14 of 45 statements. [2025-02-06 18:44:07,812 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2025-02-06 18:44:07,812 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:44:07,890 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 18:44:07,891 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:44:07,891 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1307164161] [2025-02-06 18:44:07,891 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1307164161] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:44:07,891 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 18:44:07,891 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2025-02-06 18:44:07,891 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [594907081] [2025-02-06 18:44:07,891 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:44:07,891 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-02-06 18:44:07,891 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:44:07,892 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-02-06 18:44:07,892 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2025-02-06 18:44:07,911 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 47 [2025-02-06 18:44:07,912 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 603 places, 889 transitions, 23987 flow. Second operand has 10 states, 10 states have (on average 15.7) internal successors, (157), 10 states have internal predecessors, (157), 0 states have call successors, (0), 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 18:44:07,912 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:44:07,912 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 47 [2025-02-06 18:44:07,912 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:44:11,295 INFO L124 PetriNetUnfolderBase]: 3813/8200 cut-off events. [2025-02-06 18:44:11,295 INFO L125 PetriNetUnfolderBase]: For 642829/642918 co-relation queries the response was YES. [2025-02-06 18:44:11,393 INFO L83 FinitePrefix]: Finished finitePrefix Result has 88540 conditions, 8200 events. 3813/8200 cut-off events. For 642829/642918 co-relation queries the response was YES. Maximal size of possible extension queue 355. Compared 67665 event pairs, 1480 based on Foata normal form. 34/8176 useless extension candidates. Maximal degree in co-relation 88168. Up to 3181 conditions per place. [2025-02-06 18:44:11,423 INFO L140 encePairwiseOnDemand]: 33/47 looper letters, 825 selfloop transitions, 193 changer transitions 0/1032 dead transitions. [2025-02-06 18:44:11,423 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 620 places, 1032 transitions, 29311 flow [2025-02-06 18:44:11,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2025-02-06 18:44:11,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2025-02-06 18:44:11,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 425 transitions. [2025-02-06 18:44:11,424 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5023640661938534 [2025-02-06 18:44:11,424 INFO L175 Difference]: Start difference. First operand has 603 places, 889 transitions, 23987 flow. Second operand 18 states and 425 transitions. [2025-02-06 18:44:11,424 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 620 places, 1032 transitions, 29311 flow [2025-02-06 18:44:14,762 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 619 places, 1032 transitions, 28956 flow, removed 177 selfloop flow, removed 1 redundant places. [2025-02-06 18:44:14,779 INFO L231 Difference]: Finished difference. Result has 630 places, 921 transitions, 25494 flow [2025-02-06 18:44:14,779 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=23646, PETRI_DIFFERENCE_MINUEND_PLACES=602, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=889, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=162, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=714, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=25494, PETRI_PLACES=630, PETRI_TRANSITIONS=921} [2025-02-06 18:44:14,780 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, 583 predicate places. [2025-02-06 18:44:14,780 INFO L471 AbstractCegarLoop]: Abstraction has has 630 places, 921 transitions, 25494 flow [2025-02-06 18:44:14,780 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 15.7) internal successors, (157), 10 states have internal predecessors, (157), 0 states have call successors, (0), 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 18:44:14,780 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:44:14,780 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 18:44:14,780 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2025-02-06 18:44:14,780 INFO L396 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2025-02-06 18:44:14,781 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:44:14,781 INFO L85 PathProgramCache]: Analyzing trace with hash 116755075, now seen corresponding path program 13 times [2025-02-06 18:44:14,781 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:44:14,781 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [606341165] [2025-02-06 18:44:14,781 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2025-02-06 18:44:14,782 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:44:14,790 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 45 statements into 1 equivalence classes. [2025-02-06 18:44:14,795 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 45 of 45 statements. [2025-02-06 18:44:14,795 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:44:14,795 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:44:15,017 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 18:44:15,017 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:44:15,017 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [606341165] [2025-02-06 18:44:15,017 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [606341165] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:44:15,017 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 18:44:15,017 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2025-02-06 18:44:15,017 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [599485774] [2025-02-06 18:44:15,018 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:44:15,018 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2025-02-06 18:44:15,018 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:44:15,018 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2025-02-06 18:44:15,018 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2025-02-06 18:44:15,048 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 47 [2025-02-06 18:44:15,048 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 630 places, 921 transitions, 25494 flow. Second operand has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 18:44:15,048 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:44:15,048 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 47 [2025-02-06 18:44:15,048 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:44:19,181 INFO L124 PetriNetUnfolderBase]: 3911/8399 cut-off events. [2025-02-06 18:44:19,182 INFO L125 PetriNetUnfolderBase]: For 735348/735422 co-relation queries the response was YES. [2025-02-06 18:44:19,303 INFO L83 FinitePrefix]: Finished finitePrefix Result has 93470 conditions, 8399 events. 3911/8399 cut-off events. For 735348/735422 co-relation queries the response was YES. Maximal size of possible extension queue 366. Compared 69503 event pairs, 1538 based on Foata normal form. 30/8366 useless extension candidates. Maximal degree in co-relation 93087. Up to 3213 conditions per place. [2025-02-06 18:44:19,341 INFO L140 encePairwiseOnDemand]: 32/47 looper letters, 838 selfloop transitions, 204 changer transitions 0/1056 dead transitions. [2025-02-06 18:44:19,341 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 647 places, 1056 transitions, 30656 flow [2025-02-06 18:44:19,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2025-02-06 18:44:19,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2025-02-06 18:44:19,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 417 transitions. [2025-02-06 18:44:19,343 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4929078014184397 [2025-02-06 18:44:19,343 INFO L175 Difference]: Start difference. First operand has 630 places, 921 transitions, 25494 flow. Second operand 18 states and 417 transitions. [2025-02-06 18:44:19,343 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 647 places, 1056 transitions, 30656 flow [2025-02-06 18:44:23,895 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 645 places, 1056 transitions, 30173 flow, removed 185 selfloop flow, removed 2 redundant places. [2025-02-06 18:44:23,911 INFO L231 Difference]: Finished difference. Result has 654 places, 945 transitions, 26764 flow [2025-02-06 18:44:23,911 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=25017, PETRI_DIFFERENCE_MINUEND_PLACES=628, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=921, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=181, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=730, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=26764, PETRI_PLACES=654, PETRI_TRANSITIONS=945} [2025-02-06 18:44:23,912 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, 607 predicate places. [2025-02-06 18:44:23,912 INFO L471 AbstractCegarLoop]: Abstraction has has 654 places, 945 transitions, 26764 flow [2025-02-06 18:44:23,912 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 18:44:23,912 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:44:23,912 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 18:44:23,912 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2025-02-06 18:44:23,912 INFO L396 AbstractCegarLoop]: === Iteration 45 === Targeting t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2025-02-06 18:44:23,913 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:44:23,913 INFO L85 PathProgramCache]: Analyzing trace with hash 1581717680, now seen corresponding path program 6 times [2025-02-06 18:44:23,913 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:44:23,913 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [736529283] [2025-02-06 18:44:23,913 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-02-06 18:44:23,913 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:44:23,919 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 45 statements into 11 equivalence classes. [2025-02-06 18:44:23,921 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) and asserted 14 of 45 statements. [2025-02-06 18:44:23,921 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2025-02-06 18:44:23,921 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:44:23,993 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 18:44:23,993 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:44:23,993 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [736529283] [2025-02-06 18:44:23,993 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [736529283] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:44:23,993 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 18:44:23,993 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2025-02-06 18:44:23,994 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1716106481] [2025-02-06 18:44:23,994 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:44:23,994 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-02-06 18:44:23,994 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:44:23,994 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-02-06 18:44:23,994 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2025-02-06 18:44:24,018 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 47 [2025-02-06 18:44:24,018 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 654 places, 945 transitions, 26764 flow. Second operand has 10 states, 10 states have (on average 15.7) internal successors, (157), 10 states have internal predecessors, (157), 0 states have call successors, (0), 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 18:44:24,018 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:44:24,018 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 47 [2025-02-06 18:44:24,018 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:44:27,851 INFO L124 PetriNetUnfolderBase]: 4067/8768 cut-off events. [2025-02-06 18:44:27,851 INFO L125 PetriNetUnfolderBase]: For 776645/776837 co-relation queries the response was YES. [2025-02-06 18:44:27,993 INFO L83 FinitePrefix]: Finished finitePrefix Result has 97011 conditions, 8768 events. 4067/8768 cut-off events. For 776645/776837 co-relation queries the response was YES. Maximal size of possible extension queue 391. Compared 73639 event pairs, 1512 based on Foata normal form. 53/8740 useless extension candidates. Maximal degree in co-relation 96619. Up to 3732 conditions per place. [2025-02-06 18:44:28,037 INFO L140 encePairwiseOnDemand]: 32/47 looper letters, 983 selfloop transitions, 192 changer transitions 0/1195 dead transitions. [2025-02-06 18:44:28,038 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 669 places, 1195 transitions, 35400 flow [2025-02-06 18:44:28,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2025-02-06 18:44:28,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2025-02-06 18:44:28,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 403 transitions. [2025-02-06 18:44:28,039 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.535904255319149 [2025-02-06 18:44:28,039 INFO L175 Difference]: Start difference. First operand has 654 places, 945 transitions, 26764 flow. Second operand 16 states and 403 transitions. [2025-02-06 18:44:28,039 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 669 places, 1195 transitions, 35400 flow