./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 48c9605d 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-?-48c9605-m [2025-02-08 14:04:00,418 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-08 14:04:00,462 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2025-02-08 14:04:00,466 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-08 14:04:00,466 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-08 14:04:00,480 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-08 14:04:00,481 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-08 14:04:00,481 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-08 14:04:00,481 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-08 14:04:00,481 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-08 14:04:00,481 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-08 14:04:00,481 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-08 14:04:00,482 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-08 14:04:00,482 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-08 14:04:00,482 INFO L153 SettingsManager]: * Use SBE=true [2025-02-08 14:04:00,482 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-08 14:04:00,482 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-08 14:04:00,482 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-08 14:04:00,482 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-08 14:04:00,482 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-08 14:04:00,482 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-08 14:04:00,482 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-08 14:04:00,482 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-08 14:04:00,483 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-08 14:04:00,483 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2025-02-08 14:04:00,483 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-08 14:04:00,483 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-08 14:04:00,483 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-08 14:04:00,483 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-08 14:04:00,483 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-08 14:04:00,483 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-08 14:04:00,483 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-08 14:04:00,483 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-08 14:04:00,483 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-08 14:04:00,484 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 14:04:00,484 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-08 14:04:00,484 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-08 14:04:00,484 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-08 14:04:00,484 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-08 14:04:00,484 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-08 14:04:00,484 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-08 14:04:00,484 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-08 14:04:00,484 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-08 14:04:00,484 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-08 14:04:00,484 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-08 14:04:00,484 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 [2025-02-08 14:04:00,663 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-08 14:04:00,676 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-08 14:04:00,679 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-08 14:04:00,683 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-08 14:04:00,683 INFO L274 PluginConnector]: CDTParser initialized [2025-02-08 14:04:00,684 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/06-symbeq_05-funloop_hard2.i [2025-02-08 14:04:02,273 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/7726b4590/6d7921e2390444bbbc41ea2dd37d6470/FLAG8420a0b24 [2025-02-08 14:04:02,577 INFO L384 CDTParser]: Found 1 translation units. [2025-02-08 14:04:02,577 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/goblint-regression/06-symbeq_05-funloop_hard2.i [2025-02-08 14:04:02,586 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/7726b4590/6d7921e2390444bbbc41ea2dd37d6470/FLAG8420a0b24 [2025-02-08 14:04:02,829 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/7726b4590/6d7921e2390444bbbc41ea2dd37d6470 [2025-02-08 14:04:02,831 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-08 14:04:02,832 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-08 14:04:02,833 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-08 14:04:02,833 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-08 14:04:02,836 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-08 14:04:02,836 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 02:04:02" (1/1) ... [2025-02-08 14:04:02,837 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@b21d599 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:04:02, skipping insertion in model container [2025-02-08 14:04:02,837 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 02:04:02" (1/1) ... [2025-02-08 14:04:02,856 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-08 14:04:03,074 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 14:04:03,101 INFO L200 MainTranslator]: Completed pre-run [2025-02-08 14:04:03,137 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 14:04:03,172 INFO L204 MainTranslator]: Completed translation [2025-02-08 14:04:03,172 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:04:03 WrapperNode [2025-02-08 14:04:03,173 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-08 14:04:03,173 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-08 14:04:03,173 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-08 14:04:03,173 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-08 14:04:03,178 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:04:03" (1/1) ... [2025-02-08 14:04:03,186 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:04:03" (1/1) ... [2025-02-08 14:04:03,202 INFO L138 Inliner]: procedures = 263, calls = 74, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 146 [2025-02-08 14:04:03,202 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-08 14:04:03,203 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-08 14:04:03,203 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-08 14:04:03,203 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-08 14:04:03,209 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:04:03" (1/1) ... [2025-02-08 14:04:03,209 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:04:03" (1/1) ... [2025-02-08 14:04:03,211 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:04:03" (1/1) ... [2025-02-08 14:04:03,221 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]. [2025-02-08 14:04:03,221 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:04:03" (1/1) ... [2025-02-08 14:04:03,221 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:04:03" (1/1) ... [2025-02-08 14:04:03,227 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:04:03" (1/1) ... [2025-02-08 14:04:03,228 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:04:03" (1/1) ... [2025-02-08 14:04:03,229 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:04:03" (1/1) ... [2025-02-08 14:04:03,230 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:04:03" (1/1) ... [2025-02-08 14:04:03,231 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-08 14:04:03,232 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-08 14:04:03,232 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-08 14:04:03,232 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-08 14:04:03,233 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:04:03" (1/1) ... [2025-02-08 14:04:03,236 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 14:04:03,246 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:04:03,258 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) [2025-02-08 14:04:03,261 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 [2025-02-08 14:04:03,277 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2025-02-08 14:04:03,278 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-02-08 14:04:03,278 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-02-08 14:04:03,278 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2025-02-08 14:04:03,278 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-08 14:04:03,278 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2025-02-08 14:04:03,278 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2025-02-08 14:04:03,278 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-08 14:04:03,279 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-08 14:04:03,279 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-08 14:04:03,280 WARN L227 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-02-08 14:04:03,366 INFO L257 CfgBuilder]: Building ICFG [2025-02-08 14:04:03,367 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-08 14:04:03,576 INFO L304 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-02-08 14:04:03,576 INFO L308 CfgBuilder]: Performing block encoding [2025-02-08 14:04:03,831 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-08 14:04:03,831 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-08 14:04:03,831 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 02:04:03 BoogieIcfgContainer [2025-02-08 14:04:03,831 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-08 14:04:03,832 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-08 14:04:03,832 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-08 14:04:03,835 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-08 14:04:03,835 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.02 02:04:02" (1/3) ... [2025-02-08 14:04:03,836 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ebf703c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 02:04:03, skipping insertion in model container [2025-02-08 14:04:03,836 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:04:03" (2/3) ... [2025-02-08 14:04:03,836 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ebf703c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 02:04:03, skipping insertion in model container [2025-02-08 14:04:03,836 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 02:04:03" (3/3) ... [2025-02-08 14:04:03,837 INFO L128 eAbstractionObserver]: Analyzing ICFG 06-symbeq_05-funloop_hard2.i [2025-02-08 14:04:03,849 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-08 14:04:03,851 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. [2025-02-08 14:04:03,851 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-02-08 14:04:03,880 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-02-08 14:04:03,914 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 48 places, 47 transitions, 98 flow [2025-02-08 14:04:03,937 INFO L124 PetriNetUnfolderBase]: 3/46 cut-off events. [2025-02-08 14:04:03,941 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-08 14:04:03,944 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. [2025-02-08 14:04:03,944 INFO L82 GeneralOperation]: Start removeDead. Operand has 48 places, 47 transitions, 98 flow [2025-02-08 14:04:03,950 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 47 places, 46 transitions, 95 flow [2025-02-08 14:04:03,959 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-08 14:04:03,974 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;@45ffc18f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-08 14:04:03,974 INFO L334 AbstractCegarLoop]: Starting to check reachability of 17 error locations. [2025-02-08 14:04:03,980 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-02-08 14:04:03,981 INFO L124 PetriNetUnfolderBase]: 1/5 cut-off events. [2025-02-08 14:04:03,981 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-08 14:04:03,981 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:04:03,982 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2025-02-08 14:04:03,982 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)] === [2025-02-08 14:04:03,986 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:04:03,986 INFO L85 PathProgramCache]: Analyzing trace with hash 362103, now seen corresponding path program 1 times [2025-02-08 14:04:03,991 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:04:03,993 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [244510197] [2025-02-08 14:04:03,993 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:04:03,993 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:04:04,052 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-08 14:04:04,072 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-08 14:04:04,074 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:04:04,074 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:04:04,251 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 14:04:04,254 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:04:04,254 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [244510197] [2025-02-08 14:04:04,254 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [244510197] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:04:04,254 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:04:04,255 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-08 14:04:04,256 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1988923433] [2025-02-08 14:04:04,256 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:04:04,261 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 14:04:04,264 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:04:04,278 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 14:04:04,278 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 14:04:04,289 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 47 [2025-02-08 14:04:04,291 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) [2025-02-08 14:04:04,291 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:04:04,291 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 47 [2025-02-08 14:04:04,292 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:04:04,443 INFO L124 PetriNetUnfolderBase]: 119/366 cut-off events. [2025-02-08 14:04:04,443 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-08 14:04:04,444 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. [2025-02-08 14:04:04,448 INFO L140 encePairwiseOnDemand]: 41/47 looper letters, 28 selfloop transitions, 3 changer transitions 0/48 dead transitions. [2025-02-08 14:04:04,448 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 48 transitions, 161 flow [2025-02-08 14:04:04,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-08 14:04:04,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-02-08 14:04:04,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 106 transitions. [2025-02-08 14:04:04,458 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5638297872340425 [2025-02-08 14:04:04,459 INFO L175 Difference]: Start difference. First operand has 47 places, 46 transitions, 95 flow. Second operand 4 states and 106 transitions. [2025-02-08 14:04:04,459 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 48 transitions, 161 flow [2025-02-08 14:04:04,462 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 48 transitions, 160 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-02-08 14:04:04,466 INFO L231 Difference]: Finished difference. Result has 51 places, 48 transitions, 118 flow [2025-02-08 14:04:04,468 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} [2025-02-08 14:04:04,471 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, 4 predicate places. [2025-02-08 14:04:04,472 INFO L471 AbstractCegarLoop]: Abstraction has has 51 places, 48 transitions, 118 flow [2025-02-08 14:04:04,472 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) [2025-02-08 14:04:04,472 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:04:04,472 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1] [2025-02-08 14:04:04,472 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-02-08 14:04:04,473 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)] === [2025-02-08 14:04:04,473 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:04:04,474 INFO L85 PathProgramCache]: Analyzing trace with hash -2097182167, now seen corresponding path program 1 times [2025-02-08 14:04:04,474 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:04:04,474 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [250893844] [2025-02-08 14:04:04,474 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:04:04,474 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:04:04,486 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-02-08 14:04:04,494 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-02-08 14:04:04,497 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:04:04,498 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:04:04,657 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 14:04:04,657 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:04:04,657 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [250893844] [2025-02-08 14:04:04,658 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [250893844] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 14:04:04,658 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [615353935] [2025-02-08 14:04:04,661 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:04:04,662 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 14:04:04,662 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:04:04,665 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) [2025-02-08 14:04:04,666 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 [2025-02-08 14:04:04,701 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-02-08 14:04:04,719 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-02-08 14:04:04,719 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:04:04,719 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:04:04,721 INFO L256 TraceCheckSpWp]: Trace formula consists of 154 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-02-08 14:04:04,723 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 14:04:04,758 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 14:04:04,758 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 14:04:04,758 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [615353935] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:04:04,758 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-08 14:04:04,758 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2025-02-08 14:04:04,759 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [420593258] [2025-02-08 14:04:04,759 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:04:04,759 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-08 14:04:04,760 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:04:04,760 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-08 14:04:04,760 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2025-02-08 14:04:04,767 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 47 [2025-02-08 14:04:04,768 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) [2025-02-08 14:04:04,768 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:04:04,768 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 47 [2025-02-08 14:04:04,768 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:04:04,894 INFO L124 PetriNetUnfolderBase]: 119/365 cut-off events. [2025-02-08 14:04:04,895 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2025-02-08 14:04:04,896 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. [2025-02-08 14:04:04,897 INFO L140 encePairwiseOnDemand]: 42/47 looper letters, 24 selfloop transitions, 6 changer transitions 0/47 dead transitions. [2025-02-08 14:04:04,897 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 47 transitions, 174 flow [2025-02-08 14:04:04,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-08 14:04:04,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-02-08 14:04:04,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 139 transitions. [2025-02-08 14:04:04,899 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4929078014184397 [2025-02-08 14:04:04,899 INFO L175 Difference]: Start difference. First operand has 51 places, 48 transitions, 118 flow. Second operand 6 states and 139 transitions. [2025-02-08 14:04:04,899 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 47 transitions, 174 flow [2025-02-08 14:04:04,899 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 47 transitions, 172 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-02-08 14:04:04,900 INFO L231 Difference]: Finished difference. Result has 54 places, 47 transitions, 124 flow [2025-02-08 14:04:04,900 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} [2025-02-08 14:04:04,901 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, 7 predicate places. [2025-02-08 14:04:04,901 INFO L471 AbstractCegarLoop]: Abstraction has has 54 places, 47 transitions, 124 flow [2025-02-08 14:04:04,901 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) [2025-02-08 14:04:04,901 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:04:04,901 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1] [2025-02-08 14:04:04,908 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2025-02-08 14:04:05,102 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 [2025-02-08 14:04:05,102 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)] === [2025-02-08 14:04:05,103 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:04:05,103 INFO L85 PathProgramCache]: Analyzing trace with hash -588137427, now seen corresponding path program 1 times [2025-02-08 14:04:05,103 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:04:05,103 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1079309643] [2025-02-08 14:04:05,103 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:04:05,104 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:04:05,130 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-02-08 14:04:05,134 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-02-08 14:04:05,135 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:04:05,135 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:04:05,158 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-02-08 14:04:05,158 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:04:05,158 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1079309643] [2025-02-08 14:04:05,158 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1079309643] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:04:05,158 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:04:05,158 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-08 14:04:05,158 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [879286126] [2025-02-08 14:04:05,159 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:04:05,159 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-08 14:04:05,159 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:04:05,159 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-08 14:04:05,159 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-08 14:04:05,162 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 47 [2025-02-08 14:04:05,162 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) [2025-02-08 14:04:05,163 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:04:05,163 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 47 [2025-02-08 14:04:05,163 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:04:05,232 INFO L124 PetriNetUnfolderBase]: 119/364 cut-off events. [2025-02-08 14:04:05,232 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2025-02-08 14:04:05,233 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. [2025-02-08 14:04:05,234 INFO L140 encePairwiseOnDemand]: 44/47 looper letters, 25 selfloop transitions, 4 changer transitions 0/46 dead transitions. [2025-02-08 14:04:05,234 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 46 transitions, 178 flow [2025-02-08 14:04:05,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-08 14:04:05,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-08 14:04:05,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 82 transitions. [2025-02-08 14:04:05,238 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5815602836879432 [2025-02-08 14:04:05,238 INFO L175 Difference]: Start difference. First operand has 54 places, 47 transitions, 124 flow. Second operand 3 states and 82 transitions. [2025-02-08 14:04:05,238 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 46 transitions, 178 flow [2025-02-08 14:04:05,238 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 46 transitions, 156 flow, removed 3 selfloop flow, removed 6 redundant places. [2025-02-08 14:04:05,239 INFO L231 Difference]: Finished difference. Result has 49 places, 46 transitions, 106 flow [2025-02-08 14:04:05,239 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} [2025-02-08 14:04:05,240 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, 2 predicate places. [2025-02-08 14:04:05,240 INFO L471 AbstractCegarLoop]: Abstraction has has 49 places, 46 transitions, 106 flow [2025-02-08 14:04:05,240 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) [2025-02-08 14:04:05,240 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:04:05,240 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:04:05,240 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-02-08 14:04:05,240 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)] === [2025-02-08 14:04:05,240 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:04:05,240 INFO L85 PathProgramCache]: Analyzing trace with hash -963083455, now seen corresponding path program 1 times [2025-02-08 14:04:05,240 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:04:05,241 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [597896243] [2025-02-08 14:04:05,241 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:04:05,241 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:04:05,248 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 11 statements into 1 equivalence classes. [2025-02-08 14:04:05,251 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 11 of 11 statements. [2025-02-08 14:04:05,251 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:04:05,251 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:04:05,327 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 14:04:05,327 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:04:05,328 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [597896243] [2025-02-08 14:04:05,328 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [597896243] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 14:04:05,328 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [593876768] [2025-02-08 14:04:05,328 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:04:05,328 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 14:04:05,328 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:04:05,337 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) [2025-02-08 14:04:05,340 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 [2025-02-08 14:04:05,373 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 11 statements into 1 equivalence classes. [2025-02-08 14:04:05,392 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 11 of 11 statements. [2025-02-08 14:04:05,392 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:04:05,392 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:04:05,393 INFO L256 TraceCheckSpWp]: Trace formula consists of 177 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-02-08 14:04:05,393 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 14:04:05,413 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-02-08 14:04:05,414 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 14:04:05,414 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [593876768] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:04:05,414 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-08 14:04:05,414 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2025-02-08 14:04:05,414 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2086527922] [2025-02-08 14:04:05,414 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:04:05,414 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-08 14:04:05,414 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:04:05,414 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-08 14:04:05,414 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-02-08 14:04:05,415 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 47 [2025-02-08 14:04:05,415 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) [2025-02-08 14:04:05,415 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:04:05,415 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 47 [2025-02-08 14:04:05,415 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:04:05,523 INFO L124 PetriNetUnfolderBase]: 191/543 cut-off events. [2025-02-08 14:04:05,523 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2025-02-08 14:04:05,524 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. [2025-02-08 14:04:05,526 INFO L140 encePairwiseOnDemand]: 44/47 looper letters, 44 selfloop transitions, 2 changer transitions 0/62 dead transitions. [2025-02-08 14:04:05,526 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 62 transitions, 230 flow [2025-02-08 14:04:05,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-08 14:04:05,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-08 14:04:05,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 102 transitions. [2025-02-08 14:04:05,527 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.723404255319149 [2025-02-08 14:04:05,527 INFO L175 Difference]: Start difference. First operand has 49 places, 46 transitions, 106 flow. Second operand 3 states and 102 transitions. [2025-02-08 14:04:05,527 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 62 transitions, 230 flow [2025-02-08 14:04:05,528 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 62 transitions, 222 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-02-08 14:04:05,528 INFO L231 Difference]: Finished difference. Result has 50 places, 47 transitions, 110 flow [2025-02-08 14:04:05,529 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} [2025-02-08 14:04:05,529 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, 3 predicate places. [2025-02-08 14:04:05,529 INFO L471 AbstractCegarLoop]: Abstraction has has 50 places, 47 transitions, 110 flow [2025-02-08 14:04:05,529 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) [2025-02-08 14:04:05,529 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:04:05,530 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:04:05,536 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 [2025-02-08 14:04:05,734 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 [2025-02-08 14:04:05,734 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)] === [2025-02-08 14:04:05,735 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:04:05,735 INFO L85 PathProgramCache]: Analyzing trace with hash -963043648, now seen corresponding path program 1 times [2025-02-08 14:04:05,735 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:04:05,735 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [96163170] [2025-02-08 14:04:05,735 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:04:05,735 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:04:05,743 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 11 statements into 1 equivalence classes. [2025-02-08 14:04:05,748 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 11 of 11 statements. [2025-02-08 14:04:05,748 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:04:05,748 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:04:05,813 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 14:04:05,813 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:04:05,813 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [96163170] [2025-02-08 14:04:05,813 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [96163170] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 14:04:05,813 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [376877820] [2025-02-08 14:04:05,813 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:04:05,814 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 14:04:05,814 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:04:05,820 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) [2025-02-08 14:04:05,827 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 [2025-02-08 14:04:05,869 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 11 statements into 1 equivalence classes. [2025-02-08 14:04:05,892 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 11 of 11 statements. [2025-02-08 14:04:05,893 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:04:05,893 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:04:05,894 INFO L256 TraceCheckSpWp]: Trace formula consists of 185 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-02-08 14:04:05,894 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 14:04:05,914 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 14:04:05,915 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 14:04:05,941 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 14:04:05,941 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [376877820] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 14:04:05,941 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 14:04:05,941 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 9 [2025-02-08 14:04:05,941 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1384824768] [2025-02-08 14:04:05,941 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 14:04:05,942 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-02-08 14:04:05,945 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:04:05,945 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-02-08 14:04:05,946 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2025-02-08 14:04:05,956 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 47 [2025-02-08 14:04:05,957 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) [2025-02-08 14:04:05,958 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:04:05,958 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 47 [2025-02-08 14:04:05,958 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:04:06,115 INFO L124 PetriNetUnfolderBase]: 182/561 cut-off events. [2025-02-08 14:04:06,115 INFO L125 PetriNetUnfolderBase]: For 46/46 co-relation queries the response was YES. [2025-02-08 14:04:06,116 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. [2025-02-08 14:04:06,118 INFO L140 encePairwiseOnDemand]: 43/47 looper letters, 26 selfloop transitions, 7 changer transitions 0/50 dead transitions. [2025-02-08 14:04:06,118 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 50 transitions, 185 flow [2025-02-08 14:04:06,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-02-08 14:04:06,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2025-02-08 14:04:06,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 160 transitions. [2025-02-08 14:04:06,120 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.48632218844984804 [2025-02-08 14:04:06,120 INFO L175 Difference]: Start difference. First operand has 50 places, 47 transitions, 110 flow. Second operand 7 states and 160 transitions. [2025-02-08 14:04:06,120 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 50 transitions, 185 flow [2025-02-08 14:04:06,121 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 50 transitions, 183 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-02-08 14:04:06,122 INFO L231 Difference]: Finished difference. Result has 57 places, 50 transitions, 142 flow [2025-02-08 14:04:06,122 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} [2025-02-08 14:04:06,123 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, 10 predicate places. [2025-02-08 14:04:06,123 INFO L471 AbstractCegarLoop]: Abstraction has has 57 places, 50 transitions, 142 flow [2025-02-08 14:04:06,123 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) [2025-02-08 14:04:06,123 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:04:06,123 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:04:06,129 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2025-02-08 14:04:06,327 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 [2025-02-08 14:04:06,327 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)] === [2025-02-08 14:04:06,327 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:04:06,327 INFO L85 PathProgramCache]: Analyzing trace with hash -1078957696, now seen corresponding path program 2 times [2025-02-08 14:04:06,327 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:04:06,328 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [528981663] [2025-02-08 14:04:06,328 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-08 14:04:06,328 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:04:06,336 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 17 statements into 2 equivalence classes. [2025-02-08 14:04:06,342 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 8 of 17 statements. [2025-02-08 14:04:06,342 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-08 14:04:06,343 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:04:06,480 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2025-02-08 14:04:06,483 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:04:06,484 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [528981663] [2025-02-08 14:04:06,484 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [528981663] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:04:06,484 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:04:06,484 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-08 14:04:06,484 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [825621451] [2025-02-08 14:04:06,484 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:04:06,484 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-08 14:04:06,484 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:04:06,484 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-08 14:04:06,485 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-02-08 14:04:06,497 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 47 [2025-02-08 14:04:06,497 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) [2025-02-08 14:04:06,498 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:04:06,498 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 47 [2025-02-08 14:04:06,498 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:04:06,724 INFO L124 PetriNetUnfolderBase]: 272/697 cut-off events. [2025-02-08 14:04:06,724 INFO L125 PetriNetUnfolderBase]: For 49/49 co-relation queries the response was YES. [2025-02-08 14:04:06,725 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. [2025-02-08 14:04:06,728 INFO L140 encePairwiseOnDemand]: 39/47 looper letters, 66 selfloop transitions, 11 changer transitions 0/91 dead transitions. [2025-02-08 14:04:06,728 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 91 transitions, 380 flow [2025-02-08 14:04:06,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-02-08 14:04:06,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2025-02-08 14:04:06,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 192 transitions. [2025-02-08 14:04:06,729 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5835866261398176 [2025-02-08 14:04:06,729 INFO L175 Difference]: Start difference. First operand has 57 places, 50 transitions, 142 flow. Second operand 7 states and 192 transitions. [2025-02-08 14:04:06,729 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 91 transitions, 380 flow [2025-02-08 14:04:06,730 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 91 transitions, 376 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-02-08 14:04:06,731 INFO L231 Difference]: Finished difference. Result has 67 places, 61 transitions, 224 flow [2025-02-08 14:04:06,731 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} [2025-02-08 14:04:06,732 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, 20 predicate places. [2025-02-08 14:04:06,732 INFO L471 AbstractCegarLoop]: Abstraction has has 67 places, 61 transitions, 224 flow [2025-02-08 14:04:06,732 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) [2025-02-08 14:04:06,732 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:04:06,733 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:04:06,733 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-02-08 14:04:06,733 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)] === [2025-02-08 14:04:06,733 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:04:06,733 INFO L85 PathProgramCache]: Analyzing trace with hash -1051466759, now seen corresponding path program 1 times [2025-02-08 14:04:06,733 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:04:06,733 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [659132529] [2025-02-08 14:04:06,733 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:04:06,734 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:04:06,740 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 17 statements into 1 equivalence classes. [2025-02-08 14:04:06,745 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 17 of 17 statements. [2025-02-08 14:04:06,745 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:04:06,745 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:04:06,826 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 14:04:06,826 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:04:06,826 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [659132529] [2025-02-08 14:04:06,826 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [659132529] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 14:04:06,826 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1920496323] [2025-02-08 14:04:06,826 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:04:06,826 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 14:04:06,826 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:04:06,828 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) [2025-02-08 14:04:06,830 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 [2025-02-08 14:04:06,867 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 17 statements into 1 equivalence classes. [2025-02-08 14:04:06,891 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 17 of 17 statements. [2025-02-08 14:04:06,891 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:04:06,891 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:04:06,892 INFO L256 TraceCheckSpWp]: Trace formula consists of 211 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-02-08 14:04:06,893 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 14:04:06,935 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 14:04:06,935 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 14:04:07,011 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 14:04:07,011 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1920496323] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 14:04:07,011 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 14:04:07,011 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 17 [2025-02-08 14:04:07,012 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1133564192] [2025-02-08 14:04:07,012 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 14:04:07,012 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2025-02-08 14:04:07,012 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:04:07,012 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2025-02-08 14:04:07,012 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2025-02-08 14:04:07,027 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 47 [2025-02-08 14:04:07,027 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) [2025-02-08 14:04:07,027 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:04:07,027 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 47 [2025-02-08 14:04:07,027 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:04:07,203 INFO L124 PetriNetUnfolderBase]: 217/652 cut-off events. [2025-02-08 14:04:07,203 INFO L125 PetriNetUnfolderBase]: For 259/270 co-relation queries the response was YES. [2025-02-08 14:04:07,204 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. [2025-02-08 14:04:07,207 INFO L140 encePairwiseOnDemand]: 43/47 looper letters, 36 selfloop transitions, 15 changer transitions 0/69 dead transitions. [2025-02-08 14:04:07,207 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 81 places, 69 transitions, 374 flow [2025-02-08 14:04:07,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2025-02-08 14:04:07,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2025-02-08 14:04:07,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 314 transitions. [2025-02-08 14:04:07,208 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4453900709219858 [2025-02-08 14:04:07,208 INFO L175 Difference]: Start difference. First operand has 67 places, 61 transitions, 224 flow. Second operand 15 states and 314 transitions. [2025-02-08 14:04:07,208 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 81 places, 69 transitions, 374 flow [2025-02-08 14:04:07,211 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 81 places, 69 transitions, 374 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-02-08 14:04:07,212 INFO L231 Difference]: Finished difference. Result has 85 places, 69 transitions, 321 flow [2025-02-08 14:04:07,212 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} [2025-02-08 14:04:07,212 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, 38 predicate places. [2025-02-08 14:04:07,212 INFO L471 AbstractCegarLoop]: Abstraction has has 85 places, 69 transitions, 321 flow [2025-02-08 14:04:07,213 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) [2025-02-08 14:04:07,213 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:04:07,213 INFO L206 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:04:07,219 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2025-02-08 14:04:07,417 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 [2025-02-08 14:04:07,417 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)] === [2025-02-08 14:04:07,418 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:04:07,418 INFO L85 PathProgramCache]: Analyzing trace with hash 1471498617, now seen corresponding path program 2 times [2025-02-08 14:04:07,418 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:04:07,418 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [506687228] [2025-02-08 14:04:07,418 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-08 14:04:07,418 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:04:07,425 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 29 statements into 2 equivalence classes. [2025-02-08 14:04:07,431 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 8 of 29 statements. [2025-02-08 14:04:07,432 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-08 14:04:07,432 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:04:07,546 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2025-02-08 14:04:07,547 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:04:07,547 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [506687228] [2025-02-08 14:04:07,547 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [506687228] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:04:07,547 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:04:07,547 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-08 14:04:07,547 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1048156810] [2025-02-08 14:04:07,547 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:04:07,547 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-08 14:04:07,548 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:04:07,548 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-08 14:04:07,548 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-02-08 14:04:07,554 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 47 [2025-02-08 14:04:07,554 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) [2025-02-08 14:04:07,554 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:04:07,555 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 47 [2025-02-08 14:04:07,555 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:04:07,739 INFO L124 PetriNetUnfolderBase]: 270/750 cut-off events. [2025-02-08 14:04:07,739 INFO L125 PetriNetUnfolderBase]: For 345/363 co-relation queries the response was YES. [2025-02-08 14:04:07,741 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. [2025-02-08 14:04:07,744 INFO L140 encePairwiseOnDemand]: 38/47 looper letters, 74 selfloop transitions, 14 changer transitions 0/104 dead transitions. [2025-02-08 14:04:07,745 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 91 places, 104 transitions, 635 flow [2025-02-08 14:04:07,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-02-08 14:04:07,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2025-02-08 14:04:07,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 198 transitions. [2025-02-08 14:04:07,746 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.601823708206687 [2025-02-08 14:04:07,746 INFO L175 Difference]: Start difference. First operand has 85 places, 69 transitions, 321 flow. Second operand 7 states and 198 transitions. [2025-02-08 14:04:07,746 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 91 places, 104 transitions, 635 flow [2025-02-08 14:04:07,748 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 87 places, 104 transitions, 625 flow, removed 1 selfloop flow, removed 4 redundant places. [2025-02-08 14:04:07,751 INFO L231 Difference]: Finished difference. Result has 92 places, 77 transitions, 409 flow [2025-02-08 14:04:07,753 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} [2025-02-08 14:04:07,754 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, 45 predicate places. [2025-02-08 14:04:07,754 INFO L471 AbstractCegarLoop]: Abstraction has has 92 places, 77 transitions, 409 flow [2025-02-08 14:04:07,754 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) [2025-02-08 14:04:07,754 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:04:07,755 INFO L206 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:04:07,755 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-02-08 14:04:07,755 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)] === [2025-02-08 14:04:07,756 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:04:07,756 INFO L85 PathProgramCache]: Analyzing trace with hash 1814565406, now seen corresponding path program 1 times [2025-02-08 14:04:07,756 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:04:07,756 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [379407450] [2025-02-08 14:04:07,756 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:04:07,756 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:04:07,764 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 30 statements into 1 equivalence classes. [2025-02-08 14:04:07,772 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 30 of 30 statements. [2025-02-08 14:04:07,774 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:04:07,774 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:04:07,979 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 14:04:07,979 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:04:07,979 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [379407450] [2025-02-08 14:04:07,979 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [379407450] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 14:04:07,979 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [680118103] [2025-02-08 14:04:07,979 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:04:07,979 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 14:04:07,979 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:04:07,983 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) [2025-02-08 14:04:07,983 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 [2025-02-08 14:04:08,022 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 30 statements into 1 equivalence classes. [2025-02-08 14:04:08,044 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 30 of 30 statements. [2025-02-08 14:04:08,044 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:04:08,044 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:04:08,046 INFO L256 TraceCheckSpWp]: Trace formula consists of 252 conjuncts, 16 conjuncts are in the unsatisfiable core [2025-02-08 14:04:08,047 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 14:04:08,094 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 14:04:08,094 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 14:04:08,235 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 14:04:08,235 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [680118103] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 14:04:08,235 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 14:04:08,235 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16, 16] total 22 [2025-02-08 14:04:08,236 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1766924668] [2025-02-08 14:04:08,236 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 14:04:08,236 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2025-02-08 14:04:08,236 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:04:08,237 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2025-02-08 14:04:08,237 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2025-02-08 14:04:08,256 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 47 [2025-02-08 14:04:08,256 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) [2025-02-08 14:04:08,257 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:04:08,257 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 47 [2025-02-08 14:04:08,257 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:04:08,485 INFO L124 PetriNetUnfolderBase]: 228/701 cut-off events. [2025-02-08 14:04:08,485 INFO L125 PetriNetUnfolderBase]: For 565/594 co-relation queries the response was YES. [2025-02-08 14:04:08,487 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. [2025-02-08 14:04:08,489 INFO L140 encePairwiseOnDemand]: 43/47 looper letters, 44 selfloop transitions, 21 changer transitions 0/83 dead transitions. [2025-02-08 14:04:08,489 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 112 places, 83 transitions, 593 flow [2025-02-08 14:04:08,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2025-02-08 14:04:08,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2025-02-08 14:04:08,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 427 transitions. [2025-02-08 14:04:08,491 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4326241134751773 [2025-02-08 14:04:08,491 INFO L175 Difference]: Start difference. First operand has 92 places, 77 transitions, 409 flow. Second operand 21 states and 427 transitions. [2025-02-08 14:04:08,491 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 112 places, 83 transitions, 593 flow [2025-02-08 14:04:08,494 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 111 places, 83 transitions, 583 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-02-08 14:04:08,495 INFO L231 Difference]: Finished difference. Result has 114 places, 83 transitions, 510 flow [2025-02-08 14:04:08,495 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} [2025-02-08 14:04:08,496 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, 67 predicate places. [2025-02-08 14:04:08,496 INFO L471 AbstractCegarLoop]: Abstraction has has 114 places, 83 transitions, 510 flow [2025-02-08 14:04:08,496 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) [2025-02-08 14:04:08,496 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:04:08,496 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:04:08,503 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2025-02-08 14:04:08,701 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 [2025-02-08 14:04:08,701 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)] === [2025-02-08 14:04:08,701 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:04:08,702 INFO L85 PathProgramCache]: Analyzing trace with hash -1162737172, now seen corresponding path program 2 times [2025-02-08 14:04:08,702 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:04:08,702 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [479022390] [2025-02-08 14:04:08,702 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-08 14:04:08,702 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:04:08,709 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 39 statements into 2 equivalence classes. [2025-02-08 14:04:08,712 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 9 of 39 statements. [2025-02-08 14:04:08,712 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-08 14:04:08,712 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:04:08,775 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2025-02-08 14:04:08,776 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:04:08,776 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [479022390] [2025-02-08 14:04:08,776 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [479022390] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:04:08,776 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:04:08,776 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-08 14:04:08,776 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [704886020] [2025-02-08 14:04:08,776 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:04:08,776 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-08 14:04:08,776 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:04:08,777 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-08 14:04:08,777 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-02-08 14:04:08,782 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 47 [2025-02-08 14:04:08,782 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) [2025-02-08 14:04:08,782 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:04:08,782 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 47 [2025-02-08 14:04:08,782 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:04:08,976 INFO L124 PetriNetUnfolderBase]: 271/743 cut-off events. [2025-02-08 14:04:08,977 INFO L125 PetriNetUnfolderBase]: For 680/707 co-relation queries the response was YES. [2025-02-08 14:04:08,978 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. [2025-02-08 14:04:08,981 INFO L140 encePairwiseOnDemand]: 40/47 looper letters, 77 selfloop transitions, 13 changer transitions 0/104 dead transitions. [2025-02-08 14:04:08,981 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 120 places, 104 transitions, 776 flow [2025-02-08 14:04:08,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-02-08 14:04:08,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2025-02-08 14:04:08,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 185 transitions. [2025-02-08 14:04:08,982 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5623100303951368 [2025-02-08 14:04:08,982 INFO L175 Difference]: Start difference. First operand has 114 places, 83 transitions, 510 flow. Second operand 7 states and 185 transitions. [2025-02-08 14:04:08,982 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 120 places, 104 transitions, 776 flow [2025-02-08 14:04:08,985 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 106 places, 104 transitions, 723 flow, removed 1 selfloop flow, removed 14 redundant places. [2025-02-08 14:04:08,987 INFO L231 Difference]: Finished difference. Result has 106 places, 82 transitions, 479 flow [2025-02-08 14:04:08,987 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} [2025-02-08 14:04:08,987 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, 59 predicate places. [2025-02-08 14:04:08,987 INFO L471 AbstractCegarLoop]: Abstraction has has 106 places, 82 transitions, 479 flow [2025-02-08 14:04:08,988 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) [2025-02-08 14:04:08,988 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:04:08,988 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:04:08,988 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2025-02-08 14:04:08,988 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)] === [2025-02-08 14:04:08,988 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:04:08,988 INFO L85 PathProgramCache]: Analyzing trace with hash -191500816, now seen corresponding path program 1 times [2025-02-08 14:04:08,989 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:04:08,989 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [677707572] [2025-02-08 14:04:08,989 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:04:08,989 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:04:08,996 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 42 statements into 1 equivalence classes. [2025-02-08 14:04:09,001 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 42 of 42 statements. [2025-02-08 14:04:09,001 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:04:09,001 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:04:09,048 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2025-02-08 14:04:09,049 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:04:09,049 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [677707572] [2025-02-08 14:04:09,049 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [677707572] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:04:09,049 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:04:09,049 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-08 14:04:09,049 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1363983328] [2025-02-08 14:04:09,049 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:04:09,049 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 14:04:09,049 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:04:09,050 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 14:04:09,050 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 14:04:09,053 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 47 [2025-02-08 14:04:09,054 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) [2025-02-08 14:04:09,054 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:04:09,054 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 47 [2025-02-08 14:04:09,054 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:04:09,164 INFO L124 PetriNetUnfolderBase]: 258/692 cut-off events. [2025-02-08 14:04:09,164 INFO L125 PetriNetUnfolderBase]: For 638/674 co-relation queries the response was YES. [2025-02-08 14:04:09,165 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. [2025-02-08 14:04:09,168 INFO L140 encePairwiseOnDemand]: 42/47 looper letters, 94 selfloop transitions, 4 changer transitions 0/112 dead transitions. [2025-02-08 14:04:09,168 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 109 places, 112 transitions, 789 flow [2025-02-08 14:04:09,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-08 14:04:09,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-02-08 14:04:09,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 125 transitions. [2025-02-08 14:04:09,169 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6648936170212766 [2025-02-08 14:04:09,169 INFO L175 Difference]: Start difference. First operand has 106 places, 82 transitions, 479 flow. Second operand 4 states and 125 transitions. [2025-02-08 14:04:09,169 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 109 places, 112 transitions, 789 flow [2025-02-08 14:04:09,172 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 104 places, 112 transitions, 765 flow, removed 0 selfloop flow, removed 5 redundant places. [2025-02-08 14:04:09,174 INFO L231 Difference]: Finished difference. Result has 106 places, 83 transitions, 476 flow [2025-02-08 14:04:09,174 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} [2025-02-08 14:04:09,174 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, 59 predicate places. [2025-02-08 14:04:09,174 INFO L471 AbstractCegarLoop]: Abstraction has has 106 places, 83 transitions, 476 flow [2025-02-08 14:04:09,174 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) [2025-02-08 14:04:09,174 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:04:09,174 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:04:09,174 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2025-02-08 14:04:09,175 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)] === [2025-02-08 14:04:09,175 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:04:09,175 INFO L85 PathProgramCache]: Analyzing trace with hash 715671661, now seen corresponding path program 1 times [2025-02-08 14:04:09,175 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:04:09,175 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1398803400] [2025-02-08 14:04:09,175 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:04:09,175 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:04:09,183 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 42 statements into 1 equivalence classes. [2025-02-08 14:04:09,187 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 42 of 42 statements. [2025-02-08 14:04:09,188 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:04:09,188 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:04:09,233 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2025-02-08 14:04:09,234 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:04:09,234 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1398803400] [2025-02-08 14:04:09,234 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1398803400] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:04:09,234 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:04:09,234 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-08 14:04:09,234 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [201198524] [2025-02-08 14:04:09,234 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:04:09,234 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 14:04:09,234 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:04:09,235 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 14:04:09,235 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 14:04:09,239 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 47 [2025-02-08 14:04:09,240 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) [2025-02-08 14:04:09,240 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:04:09,240 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 47 [2025-02-08 14:04:09,240 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:04:09,413 INFO L124 PetriNetUnfolderBase]: 394/1075 cut-off events. [2025-02-08 14:04:09,413 INFO L125 PetriNetUnfolderBase]: For 949/978 co-relation queries the response was YES. [2025-02-08 14:04:09,415 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. [2025-02-08 14:04:09,418 INFO L140 encePairwiseOnDemand]: 41/47 looper letters, 107 selfloop transitions, 4 changer transitions 0/126 dead transitions. [2025-02-08 14:04:09,418 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 109 places, 126 transitions, 873 flow [2025-02-08 14:04:09,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-08 14:04:09,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-02-08 14:04:09,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 137 transitions. [2025-02-08 14:04:09,419 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7287234042553191 [2025-02-08 14:04:09,420 INFO L175 Difference]: Start difference. First operand has 106 places, 83 transitions, 476 flow. Second operand 4 states and 137 transitions. [2025-02-08 14:04:09,420 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 109 places, 126 transitions, 873 flow [2025-02-08 14:04:09,423 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 107 places, 126 transitions, 857 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-02-08 14:04:09,424 INFO L231 Difference]: Finished difference. Result has 109 places, 85 transitions, 497 flow [2025-02-08 14:04:09,424 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} [2025-02-08 14:04:09,424 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, 62 predicate places. [2025-02-08 14:04:09,424 INFO L471 AbstractCegarLoop]: Abstraction has has 109 places, 85 transitions, 497 flow [2025-02-08 14:04:09,424 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) [2025-02-08 14:04:09,425 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:04:09,425 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:04:09,425 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2025-02-08 14:04:09,425 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)] === [2025-02-08 14:04:09,425 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:04:09,425 INFO L85 PathProgramCache]: Analyzing trace with hash -287468681, now seen corresponding path program 1 times [2025-02-08 14:04:09,425 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:04:09,425 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [733713599] [2025-02-08 14:04:09,425 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:04:09,425 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:04:09,434 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 44 statements into 1 equivalence classes. [2025-02-08 14:04:09,443 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 44 of 44 statements. [2025-02-08 14:04:09,443 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:04:09,443 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:04:09,816 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2025-02-08 14:04:09,816 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:04:09,816 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [733713599] [2025-02-08 14:04:09,816 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [733713599] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:04:09,816 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:04:09,816 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-02-08 14:04:09,816 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1165597439] [2025-02-08 14:04:09,816 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:04:09,816 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-02-08 14:04:09,816 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:04:09,817 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-02-08 14:04:09,818 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2025-02-08 14:04:09,819 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 47 [2025-02-08 14:04:09,820 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) [2025-02-08 14:04:09,820 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:04:09,820 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 47 [2025-02-08 14:04:09,820 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:04:10,094 INFO L124 PetriNetUnfolderBase]: 403/1144 cut-off events. [2025-02-08 14:04:10,094 INFO L125 PetriNetUnfolderBase]: For 1152/1201 co-relation queries the response was YES. [2025-02-08 14:04:10,097 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. [2025-02-08 14:04:10,100 INFO L140 encePairwiseOnDemand]: 36/47 looper letters, 118 selfloop transitions, 16 changer transitions 0/150 dead transitions. [2025-02-08 14:04:10,100 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 116 places, 150 transitions, 1087 flow [2025-02-08 14:04:10,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-02-08 14:04:10,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2025-02-08 14:04:10,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 225 transitions. [2025-02-08 14:04:10,103 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.598404255319149 [2025-02-08 14:04:10,103 INFO L175 Difference]: Start difference. First operand has 109 places, 85 transitions, 497 flow. Second operand 8 states and 225 transitions. [2025-02-08 14:04:10,103 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 116 places, 150 transitions, 1087 flow [2025-02-08 14:04:10,107 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 115 places, 150 transitions, 1075 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-02-08 14:04:10,109 INFO L231 Difference]: Finished difference. Result has 120 places, 96 transitions, 613 flow [2025-02-08 14:04:10,109 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} [2025-02-08 14:04:10,110 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, 73 predicate places. [2025-02-08 14:04:10,111 INFO L471 AbstractCegarLoop]: Abstraction has has 120 places, 96 transitions, 613 flow [2025-02-08 14:04:10,111 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) [2025-02-08 14:04:10,111 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:04:10,111 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:04:10,111 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2025-02-08 14:04:10,111 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)] === [2025-02-08 14:04:10,112 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:04:10,112 INFO L85 PathProgramCache]: Analyzing trace with hash -157316511, now seen corresponding path program 1 times [2025-02-08 14:04:10,112 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:04:10,112 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [906952775] [2025-02-08 14:04:10,112 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:04:10,112 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:04:10,122 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 44 statements into 1 equivalence classes. [2025-02-08 14:04:10,133 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 44 of 44 statements. [2025-02-08 14:04:10,133 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:04:10,133 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:04:10,477 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2025-02-08 14:04:10,477 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:04:10,477 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [906952775] [2025-02-08 14:04:10,477 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [906952775] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:04:10,477 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:04:10,477 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-02-08 14:04:10,478 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1634763432] [2025-02-08 14:04:10,478 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:04:10,478 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-02-08 14:04:10,478 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:04:10,478 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-02-08 14:04:10,478 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2025-02-08 14:04:10,481 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 47 [2025-02-08 14:04:10,481 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) [2025-02-08 14:04:10,482 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:04:10,482 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 47 [2025-02-08 14:04:10,482 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:04:10,997 INFO L124 PetriNetUnfolderBase]: 452/1305 cut-off events. [2025-02-08 14:04:10,997 INFO L125 PetriNetUnfolderBase]: For 1893/1938 co-relation queries the response was YES. [2025-02-08 14:04:11,006 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. [2025-02-08 14:04:11,013 INFO L140 encePairwiseOnDemand]: 36/47 looper letters, 150 selfloop transitions, 22 changer transitions 0/188 dead transitions. [2025-02-08 14:04:11,018 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 127 places, 188 transitions, 1464 flow [2025-02-08 14:04:11,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-02-08 14:04:11,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2025-02-08 14:04:11,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 240 transitions. [2025-02-08 14:04:11,019 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6382978723404256 [2025-02-08 14:04:11,019 INFO L175 Difference]: Start difference. First operand has 120 places, 96 transitions, 613 flow. Second operand 8 states and 240 transitions. [2025-02-08 14:04:11,019 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 127 places, 188 transitions, 1464 flow [2025-02-08 14:04:11,033 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 125 places, 188 transitions, 1443 flow, removed 4 selfloop flow, removed 2 redundant places. [2025-02-08 14:04:11,039 INFO L231 Difference]: Finished difference. Result has 130 places, 109 transitions, 792 flow [2025-02-08 14:04:11,039 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} [2025-02-08 14:04:11,039 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, 83 predicate places. [2025-02-08 14:04:11,039 INFO L471 AbstractCegarLoop]: Abstraction has has 130 places, 109 transitions, 792 flow [2025-02-08 14:04:11,039 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) [2025-02-08 14:04:11,039 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:04:11,040 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:04:11,040 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2025-02-08 14:04:11,040 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)] === [2025-02-08 14:04:11,040 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:04:11,040 INFO L85 PathProgramCache]: Analyzing trace with hash -1828585407, now seen corresponding path program 2 times [2025-02-08 14:04:11,040 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:04:11,040 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1377940330] [2025-02-08 14:04:11,040 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-08 14:04:11,041 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:04:11,049 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 44 statements into 2 equivalence classes. [2025-02-08 14:04:11,053 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 14 of 44 statements. [2025-02-08 14:04:11,053 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-08 14:04:11,053 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:04:11,381 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2025-02-08 14:04:11,384 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:04:11,385 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1377940330] [2025-02-08 14:04:11,385 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1377940330] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:04:11,385 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:04:11,385 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-02-08 14:04:11,385 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1784829537] [2025-02-08 14:04:11,385 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:04:11,385 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-02-08 14:04:11,385 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:04:11,385 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-02-08 14:04:11,385 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2025-02-08 14:04:11,395 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 47 [2025-02-08 14:04:11,395 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) [2025-02-08 14:04:11,395 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:04:11,395 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 47 [2025-02-08 14:04:11,395 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:04:11,698 INFO L124 PetriNetUnfolderBase]: 501/1394 cut-off events. [2025-02-08 14:04:11,698 INFO L125 PetriNetUnfolderBase]: For 3243/3292 co-relation queries the response was YES. [2025-02-08 14:04:11,703 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. [2025-02-08 14:04:11,709 INFO L140 encePairwiseOnDemand]: 35/47 looper letters, 154 selfloop transitions, 25 changer transitions 0/195 dead transitions. [2025-02-08 14:04:11,709 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 137 places, 195 transitions, 1768 flow [2025-02-08 14:04:11,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-02-08 14:04:11,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2025-02-08 14:04:11,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 231 transitions. [2025-02-08 14:04:11,711 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6143617021276596 [2025-02-08 14:04:11,711 INFO L175 Difference]: Start difference. First operand has 130 places, 109 transitions, 792 flow. Second operand 8 states and 231 transitions. [2025-02-08 14:04:11,711 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 137 places, 195 transitions, 1768 flow [2025-02-08 14:04:11,721 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 135 places, 195 transitions, 1738 flow, removed 8 selfloop flow, removed 2 redundant places. [2025-02-08 14:04:11,723 INFO L231 Difference]: Finished difference. Result has 139 places, 121 transitions, 993 flow [2025-02-08 14:04:11,724 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} [2025-02-08 14:04:11,724 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, 92 predicate places. [2025-02-08 14:04:11,725 INFO L471 AbstractCegarLoop]: Abstraction has has 139 places, 121 transitions, 993 flow [2025-02-08 14:04:11,725 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) [2025-02-08 14:04:11,725 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:04:11,725 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:04:11,725 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2025-02-08 14:04:11,725 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)] === [2025-02-08 14:04:11,726 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:04:11,726 INFO L85 PathProgramCache]: Analyzing trace with hash 1782007329, now seen corresponding path program 2 times [2025-02-08 14:04:11,726 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:04:11,726 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [293253227] [2025-02-08 14:04:11,726 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-08 14:04:11,726 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:04:11,735 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 44 statements into 2 equivalence classes. [2025-02-08 14:04:11,740 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 13 of 44 statements. [2025-02-08 14:04:11,741 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-08 14:04:11,741 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:04:11,829 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 156 trivial. 0 not checked. [2025-02-08 14:04:11,829 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:04:11,829 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [293253227] [2025-02-08 14:04:11,830 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [293253227] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:04:11,830 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:04:11,830 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-02-08 14:04:11,830 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [999428597] [2025-02-08 14:04:11,830 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:04:11,830 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-02-08 14:04:11,830 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:04:11,830 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-02-08 14:04:11,831 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2025-02-08 14:04:11,841 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 47 [2025-02-08 14:04:11,841 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) [2025-02-08 14:04:11,841 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:04:11,841 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 47 [2025-02-08 14:04:11,841 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:04:12,186 INFO L124 PetriNetUnfolderBase]: 530/1494 cut-off events. [2025-02-08 14:04:12,186 INFO L125 PetriNetUnfolderBase]: For 4928/5031 co-relation queries the response was YES. [2025-02-08 14:04:12,192 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. [2025-02-08 14:04:12,198 INFO L140 encePairwiseOnDemand]: 36/47 looper letters, 171 selfloop transitions, 30 changer transitions 0/218 dead transitions. [2025-02-08 14:04:12,198 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 145 places, 218 transitions, 2111 flow [2025-02-08 14:04:12,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-02-08 14:04:12,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2025-02-08 14:04:12,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 226 transitions. [2025-02-08 14:04:12,199 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6869300911854104 [2025-02-08 14:04:12,199 INFO L175 Difference]: Start difference. First operand has 139 places, 121 transitions, 993 flow. Second operand 7 states and 226 transitions. [2025-02-08 14:04:12,199 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 145 places, 218 transitions, 2111 flow [2025-02-08 14:04:12,210 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 142 places, 218 transitions, 2054 flow, removed 5 selfloop flow, removed 3 redundant places. [2025-02-08 14:04:12,213 INFO L231 Difference]: Finished difference. Result has 146 places, 133 transitions, 1208 flow [2025-02-08 14:04:12,214 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} [2025-02-08 14:04:12,214 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, 99 predicate places. [2025-02-08 14:04:12,214 INFO L471 AbstractCegarLoop]: Abstraction has has 146 places, 133 transitions, 1208 flow [2025-02-08 14:04:12,214 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) [2025-02-08 14:04:12,215 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:04:12,215 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:04:12,215 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2025-02-08 14:04:12,215 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)] === [2025-02-08 14:04:12,216 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:04:12,216 INFO L85 PathProgramCache]: Analyzing trace with hash -747622699, now seen corresponding path program 3 times [2025-02-08 14:04:12,216 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:04:12,216 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1904825182] [2025-02-08 14:04:12,216 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-02-08 14:04:12,217 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:04:12,226 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 44 statements into 11 equivalence classes. [2025-02-08 14:04:12,229 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) and asserted 13 of 44 statements. [2025-02-08 14:04:12,229 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2025-02-08 14:04:12,229 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:04:12,303 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 156 trivial. 0 not checked. [2025-02-08 14:04:12,303 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:04:12,303 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1904825182] [2025-02-08 14:04:12,303 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1904825182] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:04:12,303 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:04:12,303 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-02-08 14:04:12,304 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [773407361] [2025-02-08 14:04:12,304 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:04:12,304 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-02-08 14:04:12,304 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:04:12,304 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-02-08 14:04:12,304 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2025-02-08 14:04:12,307 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 47 [2025-02-08 14:04:12,307 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) [2025-02-08 14:04:12,307 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:04:12,307 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 47 [2025-02-08 14:04:12,307 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:04:12,685 INFO L124 PetriNetUnfolderBase]: 617/1698 cut-off events. [2025-02-08 14:04:12,685 INFO L125 PetriNetUnfolderBase]: For 7518/7581 co-relation queries the response was YES. [2025-02-08 14:04:12,693 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. [2025-02-08 14:04:12,700 INFO L140 encePairwiseOnDemand]: 36/47 looper letters, 175 selfloop transitions, 31 changer transitions 0/222 dead transitions. [2025-02-08 14:04:12,701 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 152 places, 222 transitions, 2386 flow [2025-02-08 14:04:12,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-02-08 14:04:12,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2025-02-08 14:04:12,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 217 transitions. [2025-02-08 14:04:12,702 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6595744680851063 [2025-02-08 14:04:12,702 INFO L175 Difference]: Start difference. First operand has 146 places, 133 transitions, 1208 flow. Second operand 7 states and 217 transitions. [2025-02-08 14:04:12,702 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 152 places, 222 transitions, 2386 flow [2025-02-08 14:04:12,716 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 150 places, 222 transitions, 2322 flow, removed 7 selfloop flow, removed 2 redundant places. [2025-02-08 14:04:12,719 INFO L231 Difference]: Finished difference. Result has 155 places, 150 transitions, 1523 flow [2025-02-08 14:04:12,719 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} [2025-02-08 14:04:12,719 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, 108 predicate places. [2025-02-08 14:04:12,719 INFO L471 AbstractCegarLoop]: Abstraction has has 155 places, 150 transitions, 1523 flow [2025-02-08 14:04:12,719 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) [2025-02-08 14:04:12,720 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:04:12,720 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:04:12,720 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2025-02-08 14:04:12,720 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)] === [2025-02-08 14:04:12,720 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:04:12,720 INFO L85 PathProgramCache]: Analyzing trace with hash 1704148465, now seen corresponding path program 3 times [2025-02-08 14:04:12,721 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:04:12,721 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1451174627] [2025-02-08 14:04:12,721 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-02-08 14:04:12,721 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:04:12,729 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 44 statements into 11 equivalence classes. [2025-02-08 14:04:12,732 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) and asserted 13 of 44 statements. [2025-02-08 14:04:12,732 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2025-02-08 14:04:12,732 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:04:12,840 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 156 trivial. 0 not checked. [2025-02-08 14:04:12,840 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:04:12,841 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1451174627] [2025-02-08 14:04:12,841 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1451174627] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:04:12,841 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:04:12,841 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-02-08 14:04:12,841 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [370944980] [2025-02-08 14:04:12,841 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:04:12,841 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-02-08 14:04:12,841 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:04:12,842 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-02-08 14:04:12,842 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2025-02-08 14:04:12,846 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 47 [2025-02-08 14:04:12,846 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) [2025-02-08 14:04:12,846 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:04:12,846 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 47 [2025-02-08 14:04:12,846 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:04:13,247 INFO L124 PetriNetUnfolderBase]: 629/1763 cut-off events. [2025-02-08 14:04:13,247 INFO L125 PetriNetUnfolderBase]: For 9563/9647 co-relation queries the response was YES. [2025-02-08 14:04:13,253 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. [2025-02-08 14:04:13,258 INFO L140 encePairwiseOnDemand]: 35/47 looper letters, 183 selfloop transitions, 44 changer transitions 0/244 dead transitions. [2025-02-08 14:04:13,259 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 161 places, 244 transitions, 2750 flow [2025-02-08 14:04:13,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-02-08 14:04:13,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2025-02-08 14:04:13,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 228 transitions. [2025-02-08 14:04:13,260 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6930091185410334 [2025-02-08 14:04:13,260 INFO L175 Difference]: Start difference. First operand has 155 places, 150 transitions, 1523 flow. Second operand 7 states and 228 transitions. [2025-02-08 14:04:13,260 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 161 places, 244 transitions, 2750 flow [2025-02-08 14:04:13,277 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 161 places, 244 transitions, 2704 flow, removed 23 selfloop flow, removed 0 redundant places. [2025-02-08 14:04:13,280 INFO L231 Difference]: Finished difference. Result has 166 places, 169 transitions, 1946 flow [2025-02-08 14:04:13,280 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} [2025-02-08 14:04:13,280 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, 119 predicate places. [2025-02-08 14:04:13,280 INFO L471 AbstractCegarLoop]: Abstraction has has 166 places, 169 transitions, 1946 flow [2025-02-08 14:04:13,281 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) [2025-02-08 14:04:13,281 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:04:13,281 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:04:13,281 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2025-02-08 14:04:13,281 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)] === [2025-02-08 14:04:13,281 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:04:13,282 INFO L85 PathProgramCache]: Analyzing trace with hash -1541893547, now seen corresponding path program 4 times [2025-02-08 14:04:13,282 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:04:13,282 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1084706064] [2025-02-08 14:04:13,282 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-02-08 14:04:13,282 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:04:13,290 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 44 statements into 2 equivalence classes. [2025-02-08 14:04:13,297 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 44 of 44 statements. [2025-02-08 14:04:13,297 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-02-08 14:04:13,298 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:04:13,432 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 156 trivial. 0 not checked. [2025-02-08 14:04:13,432 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:04:13,432 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1084706064] [2025-02-08 14:04:13,432 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1084706064] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:04:13,432 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:04:13,432 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-02-08 14:04:13,432 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [63892350] [2025-02-08 14:04:13,432 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:04:13,433 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-02-08 14:04:13,433 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:04:13,433 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-02-08 14:04:13,433 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2025-02-08 14:04:13,437 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 47 [2025-02-08 14:04:13,437 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) [2025-02-08 14:04:13,437 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:04:13,437 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 47 [2025-02-08 14:04:13,437 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:04:13,864 INFO L124 PetriNetUnfolderBase]: 600/1692 cut-off events. [2025-02-08 14:04:13,864 INFO L125 PetriNetUnfolderBase]: For 12036/12149 co-relation queries the response was YES. [2025-02-08 14:04:13,870 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. [2025-02-08 14:04:13,875 INFO L140 encePairwiseOnDemand]: 35/47 looper letters, 174 selfloop transitions, 50 changer transitions 0/241 dead transitions. [2025-02-08 14:04:13,875 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 172 places, 241 transitions, 2981 flow [2025-02-08 14:04:13,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-02-08 14:04:13,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2025-02-08 14:04:13,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 224 transitions. [2025-02-08 14:04:13,876 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6808510638297872 [2025-02-08 14:04:13,876 INFO L175 Difference]: Start difference. First operand has 166 places, 169 transitions, 1946 flow. Second operand 7 states and 224 transitions. [2025-02-08 14:04:13,876 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 172 places, 241 transitions, 2981 flow [2025-02-08 14:04:13,899 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 172 places, 241 transitions, 2911 flow, removed 35 selfloop flow, removed 0 redundant places. [2025-02-08 14:04:13,902 INFO L231 Difference]: Finished difference. Result has 175 places, 177 transitions, 2157 flow [2025-02-08 14:04:13,902 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} [2025-02-08 14:04:13,902 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, 128 predicate places. [2025-02-08 14:04:13,903 INFO L471 AbstractCegarLoop]: Abstraction has has 175 places, 177 transitions, 2157 flow [2025-02-08 14:04:13,903 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) [2025-02-08 14:04:13,903 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:04:13,903 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:04:13,903 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2025-02-08 14:04:13,903 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)] === [2025-02-08 14:04:13,903 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:04:13,904 INFO L85 PathProgramCache]: Analyzing trace with hash 1432181175, now seen corresponding path program 5 times [2025-02-08 14:04:13,904 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:04:13,904 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [76260110] [2025-02-08 14:04:13,904 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-02-08 14:04:13,904 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:04:13,915 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 44 statements into 11 equivalence classes. [2025-02-08 14:04:13,937 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) and asserted 44 of 44 statements. [2025-02-08 14:04:13,939 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) [2025-02-08 14:04:13,940 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:04:14,388 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 11 proven. 10 refuted. 0 times theorem prover too weak. 135 trivial. 0 not checked. [2025-02-08 14:04:14,389 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:04:14,389 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [76260110] [2025-02-08 14:04:14,389 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [76260110] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 14:04:14,389 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1608729885] [2025-02-08 14:04:14,389 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-02-08 14:04:14,389 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 14:04:14,389 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:04:14,394 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) [2025-02-08 14:04:14,395 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 [2025-02-08 14:04:14,440 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 44 statements into 11 equivalence classes. [2025-02-08 14:04:14,491 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) and asserted 44 of 44 statements. [2025-02-08 14:04:14,492 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) [2025-02-08 14:04:14,492 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:04:14,495 INFO L256 TraceCheckSpWp]: Trace formula consists of 317 conjuncts, 26 conjuncts are in the unsatisfiable core [2025-02-08 14:04:14,496 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 14:04:14,591 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 [2025-02-08 14:04:14,629 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2025-02-08 14:04:14,629 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 14:04:14,629 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1608729885] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:04:14,630 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-08 14:04:14,630 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [9] total 15 [2025-02-08 14:04:14,630 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1574639428] [2025-02-08 14:04:14,630 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:04:14,630 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-02-08 14:04:14,630 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:04:14,630 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-02-08 14:04:14,631 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=201, Unknown=0, NotChecked=0, Total=240 [2025-02-08 14:04:14,633 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 47 [2025-02-08 14:04:14,633 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) [2025-02-08 14:04:14,633 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:04:14,633 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 47 [2025-02-08 14:04:14,633 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:04:14,988 INFO L124 PetriNetUnfolderBase]: 620/1730 cut-off events. [2025-02-08 14:04:14,988 INFO L125 PetriNetUnfolderBase]: For 13565/13657 co-relation queries the response was YES. [2025-02-08 14:04:14,996 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. [2025-02-08 14:04:15,001 INFO L140 encePairwiseOnDemand]: 35/47 looper letters, 190 selfloop transitions, 46 changer transitions 0/252 dead transitions. [2025-02-08 14:04:15,001 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 182 places, 252 transitions, 3283 flow [2025-02-08 14:04:15,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-02-08 14:04:15,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2025-02-08 14:04:15,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 241 transitions. [2025-02-08 14:04:15,002 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6409574468085106 [2025-02-08 14:04:15,002 INFO L175 Difference]: Start difference. First operand has 175 places, 177 transitions, 2157 flow. Second operand 8 states and 241 transitions. [2025-02-08 14:04:15,002 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 182 places, 252 transitions, 3283 flow [2025-02-08 14:04:15,026 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 179 places, 252 transitions, 3164 flow, removed 23 selfloop flow, removed 3 redundant places. [2025-02-08 14:04:15,029 INFO L231 Difference]: Finished difference. Result has 183 places, 187 transitions, 2392 flow [2025-02-08 14:04:15,029 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} [2025-02-08 14:04:15,030 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, 136 predicate places. [2025-02-08 14:04:15,030 INFO L471 AbstractCegarLoop]: Abstraction has has 183 places, 187 transitions, 2392 flow [2025-02-08 14:04:15,030 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) [2025-02-08 14:04:15,030 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:04:15,030 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:04:15,040 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2025-02-08 14:04:15,230 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 [2025-02-08 14:04:15,231 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)] === [2025-02-08 14:04:15,232 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:04:15,232 INFO L85 PathProgramCache]: Analyzing trace with hash 446093939, now seen corresponding path program 4 times [2025-02-08 14:04:15,232 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:04:15,232 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [208966894] [2025-02-08 14:04:15,232 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-02-08 14:04:15,232 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:04:15,239 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 44 statements into 2 equivalence classes. [2025-02-08 14:04:15,245 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 44 of 44 statements. [2025-02-08 14:04:15,245 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-02-08 14:04:15,245 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:04:15,432 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 156 trivial. 0 not checked. [2025-02-08 14:04:15,433 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:04:15,433 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [208966894] [2025-02-08 14:04:15,433 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [208966894] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:04:15,433 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:04:15,433 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2025-02-08 14:04:15,433 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1863899859] [2025-02-08 14:04:15,433 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:04:15,433 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-02-08 14:04:15,434 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:04:15,434 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-02-08 14:04:15,434 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2025-02-08 14:04:15,439 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 47 [2025-02-08 14:04:15,439 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) [2025-02-08 14:04:15,440 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:04:15,440 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 47 [2025-02-08 14:04:15,440 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:04:15,972 INFO L124 PetriNetUnfolderBase]: 624/1802 cut-off events. [2025-02-08 14:04:15,972 INFO L125 PetriNetUnfolderBase]: For 13899/13982 co-relation queries the response was YES. [2025-02-08 14:04:15,982 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. [2025-02-08 14:04:15,988 INFO L140 encePairwiseOnDemand]: 35/47 looper letters, 202 selfloop transitions, 86 changer transitions 0/305 dead transitions. [2025-02-08 14:04:15,989 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 194 places, 305 transitions, 3835 flow [2025-02-08 14:04:15,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-02-08 14:04:15,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2025-02-08 14:04:15,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 367 transitions. [2025-02-08 14:04:15,990 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.650709219858156 [2025-02-08 14:04:15,990 INFO L175 Difference]: Start difference. First operand has 183 places, 187 transitions, 2392 flow. Second operand 12 states and 367 transitions. [2025-02-08 14:04:15,990 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 194 places, 305 transitions, 3835 flow [2025-02-08 14:04:16,017 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 191 places, 305 transitions, 3701 flow, removed 45 selfloop flow, removed 3 redundant places. [2025-02-08 14:04:16,020 INFO L231 Difference]: Finished difference. Result has 196 places, 203 transitions, 2758 flow [2025-02-08 14:04:16,020 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} [2025-02-08 14:04:16,020 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, 149 predicate places. [2025-02-08 14:04:16,021 INFO L471 AbstractCegarLoop]: Abstraction has has 196 places, 203 transitions, 2758 flow [2025-02-08 14:04:16,021 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) [2025-02-08 14:04:16,021 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:04:16,021 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:04:16,021 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2025-02-08 14:04:16,021 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)] === [2025-02-08 14:04:16,022 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:04:16,022 INFO L85 PathProgramCache]: Analyzing trace with hash -191708203, now seen corresponding path program 6 times [2025-02-08 14:04:16,022 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:04:16,022 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1382355461] [2025-02-08 14:04:16,022 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-02-08 14:04:16,022 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:04:16,029 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 44 statements into 11 equivalence classes. [2025-02-08 14:04:16,031 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) and asserted 13 of 44 statements. [2025-02-08 14:04:16,031 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2025-02-08 14:04:16,031 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:04:16,094 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 156 trivial. 0 not checked. [2025-02-08 14:04:16,094 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:04:16,094 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1382355461] [2025-02-08 14:04:16,094 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1382355461] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:04:16,094 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:04:16,094 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-02-08 14:04:16,094 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [134791208] [2025-02-08 14:04:16,094 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:04:16,095 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-02-08 14:04:16,095 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:04:16,095 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-02-08 14:04:16,095 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2025-02-08 14:04:16,097 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 47 [2025-02-08 14:04:16,098 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) [2025-02-08 14:04:16,098 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:04:16,098 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 47 [2025-02-08 14:04:16,098 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:04:16,493 INFO L124 PetriNetUnfolderBase]: 618/1773 cut-off events. [2025-02-08 14:04:16,493 INFO L125 PetriNetUnfolderBase]: For 15228/15341 co-relation queries the response was YES. [2025-02-08 14:04:16,501 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. [2025-02-08 14:04:16,506 INFO L140 encePairwiseOnDemand]: 35/47 looper letters, 189 selfloop transitions, 58 changer transitions 0/263 dead transitions. [2025-02-08 14:04:16,506 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 202 places, 263 transitions, 3831 flow [2025-02-08 14:04:16,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-02-08 14:04:16,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2025-02-08 14:04:16,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 210 transitions. [2025-02-08 14:04:16,507 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6382978723404256 [2025-02-08 14:04:16,507 INFO L175 Difference]: Start difference. First operand has 196 places, 203 transitions, 2758 flow. Second operand 7 states and 210 transitions. [2025-02-08 14:04:16,508 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 202 places, 263 transitions, 3831 flow [2025-02-08 14:04:16,537 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 196 places, 263 transitions, 3589 flow, removed 65 selfloop flow, removed 6 redundant places. [2025-02-08 14:04:16,540 INFO L231 Difference]: Finished difference. Result has 199 places, 211 transitions, 2842 flow [2025-02-08 14:04:16,540 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} [2025-02-08 14:04:16,540 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, 152 predicate places. [2025-02-08 14:04:16,540 INFO L471 AbstractCegarLoop]: Abstraction has has 199 places, 211 transitions, 2842 flow [2025-02-08 14:04:16,541 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) [2025-02-08 14:04:16,541 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:04:16,541 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:04:16,541 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2025-02-08 14:04:16,541 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)] === [2025-02-08 14:04:16,541 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:04:16,541 INFO L85 PathProgramCache]: Analyzing trace with hash 1170600945, now seen corresponding path program 5 times [2025-02-08 14:04:16,542 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:04:16,542 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1514788771] [2025-02-08 14:04:16,542 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-02-08 14:04:16,542 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:04:16,549 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 44 statements into 11 equivalence classes. [2025-02-08 14:04:16,559 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) and asserted 44 of 44 statements. [2025-02-08 14:04:16,560 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) [2025-02-08 14:04:16,560 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:04:16,938 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 11 proven. 10 refuted. 0 times theorem prover too weak. 135 trivial. 0 not checked. [2025-02-08 14:04:16,938 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:04:16,938 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1514788771] [2025-02-08 14:04:16,938 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1514788771] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 14:04:16,938 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1298237607] [2025-02-08 14:04:16,938 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-02-08 14:04:16,938 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 14:04:16,938 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:04:16,945 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) [2025-02-08 14:04:16,949 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 [2025-02-08 14:04:16,998 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 44 statements into 11 equivalence classes. [2025-02-08 14:04:17,054 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) and asserted 44 of 44 statements. [2025-02-08 14:04:17,054 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) [2025-02-08 14:04:17,054 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:04:17,056 INFO L256 TraceCheckSpWp]: Trace formula consists of 317 conjuncts, 26 conjuncts are in the unsatisfiable core [2025-02-08 14:04:17,059 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 14:04:17,157 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 [2025-02-08 14:04:17,179 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2025-02-08 14:04:17,179 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 14:04:17,179 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1298237607] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:04:17,179 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-08 14:04:17,179 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [9] total 15 [2025-02-08 14:04:17,180 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [969612585] [2025-02-08 14:04:17,180 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:04:17,180 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-02-08 14:04:17,180 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:04:17,180 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-02-08 14:04:17,180 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=201, Unknown=0, NotChecked=0, Total=240 [2025-02-08 14:04:17,182 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 47 [2025-02-08 14:04:17,182 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) [2025-02-08 14:04:17,182 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:04:17,182 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 47 [2025-02-08 14:04:17,182 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:04:17,658 INFO L124 PetriNetUnfolderBase]: 616/1766 cut-off events. [2025-02-08 14:04:17,658 INFO L125 PetriNetUnfolderBase]: For 15036/15169 co-relation queries the response was YES. [2025-02-08 14:04:17,670 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. [2025-02-08 14:04:17,677 INFO L140 encePairwiseOnDemand]: 33/47 looper letters, 200 selfloop transitions, 58 changer transitions 0/274 dead transitions. [2025-02-08 14:04:17,678 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 207 places, 274 transitions, 3731 flow [2025-02-08 14:04:17,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-02-08 14:04:17,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2025-02-08 14:04:17,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 295 transitions. [2025-02-08 14:04:17,680 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6276595744680851 [2025-02-08 14:04:17,680 INFO L175 Difference]: Start difference. First operand has 199 places, 211 transitions, 2842 flow. Second operand 10 states and 295 transitions. [2025-02-08 14:04:17,681 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 207 places, 274 transitions, 3731 flow [2025-02-08 14:04:17,711 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 203 places, 274 transitions, 3595 flow, removed 22 selfloop flow, removed 4 redundant places. [2025-02-08 14:04:17,714 INFO L231 Difference]: Finished difference. Result has 207 places, 217 transitions, 2971 flow [2025-02-08 14:04:17,715 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} [2025-02-08 14:04:17,715 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, 160 predicate places. [2025-02-08 14:04:17,715 INFO L471 AbstractCegarLoop]: Abstraction has has 207 places, 217 transitions, 2971 flow [2025-02-08 14:04:17,715 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) [2025-02-08 14:04:17,715 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:04:17,715 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:04:17,722 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2025-02-08 14:04:17,916 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 [2025-02-08 14:04:17,917 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)] === [2025-02-08 14:04:17,917 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:04:17,917 INFO L85 PathProgramCache]: Analyzing trace with hash 600238685, now seen corresponding path program 7 times [2025-02-08 14:04:17,918 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:04:17,918 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1959971135] [2025-02-08 14:04:17,918 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2025-02-08 14:04:17,918 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:04:17,926 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 44 statements into 1 equivalence classes. [2025-02-08 14:04:17,930 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 44 of 44 statements. [2025-02-08 14:04:17,931 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:04:17,931 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:04:18,141 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2025-02-08 14:04:18,142 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:04:18,142 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1959971135] [2025-02-08 14:04:18,142 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1959971135] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:04:18,142 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:04:18,142 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2025-02-08 14:04:18,142 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1616175341] [2025-02-08 14:04:18,142 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:04:18,142 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-02-08 14:04:18,143 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:04:18,143 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-02-08 14:04:18,143 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2025-02-08 14:04:18,144 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 47 [2025-02-08 14:04:18,144 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) [2025-02-08 14:04:18,144 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:04:18,144 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 47 [2025-02-08 14:04:18,144 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:04:18,626 INFO L124 PetriNetUnfolderBase]: 647/1858 cut-off events. [2025-02-08 14:04:18,627 INFO L125 PetriNetUnfolderBase]: For 14374/14512 co-relation queries the response was YES. [2025-02-08 14:04:18,636 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. [2025-02-08 14:04:18,641 INFO L140 encePairwiseOnDemand]: 35/47 looper letters, 214 selfloop transitions, 89 changer transitions 0/319 dead transitions. [2025-02-08 14:04:18,641 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 219 places, 319 transitions, 4421 flow [2025-02-08 14:04:18,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-02-08 14:04:18,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2025-02-08 14:04:18,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 363 transitions. [2025-02-08 14:04:18,643 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5941080196399345 [2025-02-08 14:04:18,643 INFO L175 Difference]: Start difference. First operand has 207 places, 217 transitions, 2971 flow. Second operand 13 states and 363 transitions. [2025-02-08 14:04:18,643 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 219 places, 319 transitions, 4421 flow [2025-02-08 14:04:18,677 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 216 places, 319 transitions, 4333 flow, removed 22 selfloop flow, removed 3 redundant places. [2025-02-08 14:04:18,683 INFO L231 Difference]: Finished difference. Result has 221 places, 239 transitions, 3474 flow [2025-02-08 14:04:18,683 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} [2025-02-08 14:04:18,684 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, 174 predicate places. [2025-02-08 14:04:18,684 INFO L471 AbstractCegarLoop]: Abstraction has has 221 places, 239 transitions, 3474 flow [2025-02-08 14:04:18,684 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) [2025-02-08 14:04:18,684 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:04:18,684 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:04:18,684 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2025-02-08 14:04:18,684 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)] === [2025-02-08 14:04:18,685 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:04:18,686 INFO L85 PathProgramCache]: Analyzing trace with hash 744120545, now seen corresponding path program 8 times [2025-02-08 14:04:18,686 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:04:18,686 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [653960877] [2025-02-08 14:04:18,686 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-08 14:04:18,686 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:04:18,695 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 44 statements into 2 equivalence classes. [2025-02-08 14:04:18,696 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 13 of 44 statements. [2025-02-08 14:04:18,696 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-08 14:04:18,696 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:04:18,790 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 156 trivial. 0 not checked. [2025-02-08 14:04:18,790 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:04:18,790 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [653960877] [2025-02-08 14:04:18,790 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [653960877] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:04:18,790 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:04:18,790 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2025-02-08 14:04:18,791 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [343491473] [2025-02-08 14:04:18,791 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:04:18,791 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-02-08 14:04:18,791 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:04:18,791 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-02-08 14:04:18,791 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2025-02-08 14:04:18,795 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 47 [2025-02-08 14:04:18,795 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) [2025-02-08 14:04:18,795 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:04:18,795 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 47 [2025-02-08 14:04:18,795 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:04:19,278 INFO L124 PetriNetUnfolderBase]: 657/1893 cut-off events. [2025-02-08 14:04:19,278 INFO L125 PetriNetUnfolderBase]: For 17414/17554 co-relation queries the response was YES. [2025-02-08 14:04:19,289 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. [2025-02-08 14:04:19,294 INFO L140 encePairwiseOnDemand]: 35/47 looper letters, 233 selfloop transitions, 83 changer transitions 0/332 dead transitions. [2025-02-08 14:04:19,294 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 231 places, 332 transitions, 4895 flow [2025-02-08 14:04:19,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-02-08 14:04:19,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2025-02-08 14:04:19,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 330 transitions. [2025-02-08 14:04:19,295 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6382978723404256 [2025-02-08 14:04:19,296 INFO L175 Difference]: Start difference. First operand has 221 places, 239 transitions, 3474 flow. Second operand 11 states and 330 transitions. [2025-02-08 14:04:19,296 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 231 places, 332 transitions, 4895 flow [2025-02-08 14:04:19,334 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 224 places, 332 transitions, 4574 flow, removed 96 selfloop flow, removed 7 redundant places. [2025-02-08 14:04:19,338 INFO L231 Difference]: Finished difference. Result has 227 places, 249 transitions, 3590 flow [2025-02-08 14:04:19,338 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} [2025-02-08 14:04:19,338 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, 180 predicate places. [2025-02-08 14:04:19,338 INFO L471 AbstractCegarLoop]: Abstraction has has 227 places, 249 transitions, 3590 flow [2025-02-08 14:04:19,339 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) [2025-02-08 14:04:19,339 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:04:19,339 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:04:19,339 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2025-02-08 14:04:19,339 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)] === [2025-02-08 14:04:19,339 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:04:19,339 INFO L85 PathProgramCache]: Analyzing trace with hash 692408815, now seen corresponding path program 9 times [2025-02-08 14:04:19,339 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:04:19,340 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [46951949] [2025-02-08 14:04:19,340 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-02-08 14:04:19,340 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:04:19,346 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 44 statements into 11 equivalence classes. [2025-02-08 14:04:19,348 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) and asserted 13 of 44 statements. [2025-02-08 14:04:19,348 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2025-02-08 14:04:19,348 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:04:19,413 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 156 trivial. 0 not checked. [2025-02-08 14:04:19,414 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:04:19,414 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [46951949] [2025-02-08 14:04:19,414 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [46951949] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:04:19,414 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:04:19,414 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2025-02-08 14:04:19,414 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [889274139] [2025-02-08 14:04:19,414 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:04:19,414 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-02-08 14:04:19,414 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:04:19,415 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-02-08 14:04:19,415 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2025-02-08 14:04:19,422 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 47 [2025-02-08 14:04:19,423 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) [2025-02-08 14:04:19,423 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:04:19,423 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 47 [2025-02-08 14:04:19,423 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:04:19,898 INFO L124 PetriNetUnfolderBase]: 602/1759 cut-off events. [2025-02-08 14:04:19,898 INFO L125 PetriNetUnfolderBase]: For 15528/15664 co-relation queries the response was YES. [2025-02-08 14:04:19,908 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. [2025-02-08 14:04:19,912 INFO L140 encePairwiseOnDemand]: 35/47 looper letters, 200 selfloop transitions, 92 changer transitions 0/308 dead transitions. [2025-02-08 14:04:19,913 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 234 places, 308 transitions, 4596 flow [2025-02-08 14:04:19,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-02-08 14:04:19,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2025-02-08 14:04:19,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 318 transitions. [2025-02-08 14:04:19,914 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6150870406189555 [2025-02-08 14:04:19,914 INFO L175 Difference]: Start difference. First operand has 227 places, 249 transitions, 3590 flow. Second operand 11 states and 318 transitions. [2025-02-08 14:04:19,914 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 234 places, 308 transitions, 4596 flow [2025-02-08 14:04:19,957 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 226 places, 308 transitions, 4434 flow, removed 27 selfloop flow, removed 8 redundant places. [2025-02-08 14:04:19,961 INFO L231 Difference]: Finished difference. Result has 229 places, 247 transitions, 3695 flow [2025-02-08 14:04:19,961 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} [2025-02-08 14:04:19,961 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, 182 predicate places. [2025-02-08 14:04:19,961 INFO L471 AbstractCegarLoop]: Abstraction has has 229 places, 247 transitions, 3695 flow [2025-02-08 14:04:19,962 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) [2025-02-08 14:04:19,962 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:04:19,962 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:04:19,962 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2025-02-08 14:04:19,962 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)] === [2025-02-08 14:04:19,963 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:04:19,963 INFO L85 PathProgramCache]: Analyzing trace with hash 1927907157, now seen corresponding path program 1 times [2025-02-08 14:04:19,963 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:04:19,963 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [903233797] [2025-02-08 14:04:19,963 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:04:19,963 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:04:19,969 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 45 statements into 1 equivalence classes. [2025-02-08 14:04:19,977 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 45 of 45 statements. [2025-02-08 14:04:19,977 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:04:19,977 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:04:20,171 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2025-02-08 14:04:20,171 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:04:20,171 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [903233797] [2025-02-08 14:04:20,172 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [903233797] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:04:20,172 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:04:20,172 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2025-02-08 14:04:20,172 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [310996393] [2025-02-08 14:04:20,172 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:04:20,172 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2025-02-08 14:04:20,172 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:04:20,172 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2025-02-08 14:04:20,173 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2025-02-08 14:04:20,207 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 47 [2025-02-08 14:04:20,208 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 229 places, 247 transitions, 3695 flow. Second operand has 11 states, 11 states have (on average 16.545454545454547) 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) [2025-02-08 14:04:20,208 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:04:20,208 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 47 [2025-02-08 14:04:20,208 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:04:21,079 INFO L124 PetriNetUnfolderBase]: 1144/2778 cut-off events. [2025-02-08 14:04:21,080 INFO L125 PetriNetUnfolderBase]: For 21685/21703 co-relation queries the response was YES. [2025-02-08 14:04:21,098 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12726 conditions, 2778 events. 1144/2778 cut-off events. For 21685/21703 co-relation queries the response was YES. Maximal size of possible extension queue 112. Compared 19529 event pairs, 425 based on Foata normal form. 45/2695 useless extension candidates. Maximal degree in co-relation 12521. Up to 918 conditions per place. [2025-02-08 14:04:21,108 INFO L140 encePairwiseOnDemand]: 31/47 looper letters, 334 selfloop transitions, 77 changer transitions 0/423 dead transitions. [2025-02-08 14:04:21,108 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 246 places, 423 transitions, 5832 flow [2025-02-08 14:04:21,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2025-02-08 14:04:21,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2025-02-08 14:04:21,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 464 transitions. [2025-02-08 14:04:21,109 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5484633569739953 [2025-02-08 14:04:21,109 INFO L175 Difference]: Start difference. First operand has 229 places, 247 transitions, 3695 flow. Second operand 18 states and 464 transitions. [2025-02-08 14:04:21,109 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 246 places, 423 transitions, 5832 flow [2025-02-08 14:04:21,152 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 240 places, 423 transitions, 5632 flow, removed 9 selfloop flow, removed 6 redundant places. [2025-02-08 14:04:21,156 INFO L231 Difference]: Finished difference. Result has 253 places, 278 transitions, 4203 flow [2025-02-08 14:04:21,157 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=46, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=192, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=4203, PETRI_PLACES=253, PETRI_TRANSITIONS=278} [2025-02-08 14:04:21,157 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, 206 predicate places. [2025-02-08 14:04:21,157 INFO L471 AbstractCegarLoop]: Abstraction has has 253 places, 278 transitions, 4203 flow [2025-02-08 14:04:21,157 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) [2025-02-08 14:04:21,157 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:04:21,157 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:04:21,157 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2025-02-08 14:04:21,158 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)] === [2025-02-08 14:04:21,158 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:04:21,158 INFO L85 PathProgramCache]: Analyzing trace with hash 259353516, now seen corresponding path program 1 times [2025-02-08 14:04:21,158 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:04:21,158 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [39980550] [2025-02-08 14:04:21,158 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:04:21,158 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:04:21,165 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 45 statements into 1 equivalence classes. [2025-02-08 14:04:21,169 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 45 of 45 statements. [2025-02-08 14:04:21,169 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:04:21,169 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:04:21,338 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2025-02-08 14:04:21,338 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:04:21,338 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [39980550] [2025-02-08 14:04:21,338 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [39980550] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:04:21,338 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:04:21,338 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2025-02-08 14:04:21,338 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1045125120] [2025-02-08 14:04:21,338 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:04:21,339 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2025-02-08 14:04:21,339 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:04:21,339 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2025-02-08 14:04:21,339 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2025-02-08 14:04:21,358 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 47 [2025-02-08 14:04:21,358 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 253 places, 278 transitions, 4203 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) [2025-02-08 14:04:21,358 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:04:21,359 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 47 [2025-02-08 14:04:21,359 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:04:22,356 INFO L124 PetriNetUnfolderBase]: 1296/3129 cut-off events. [2025-02-08 14:04:22,356 INFO L125 PetriNetUnfolderBase]: For 29436/29468 co-relation queries the response was YES. [2025-02-08 14:04:22,377 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16142 conditions, 3129 events. 1296/3129 cut-off events. For 29436/29468 co-relation queries the response was YES. Maximal size of possible extension queue 127. Compared 22372 event pairs, 480 based on Foata normal form. 30/3109 useless extension candidates. Maximal degree in co-relation 15923. Up to 1075 conditions per place. [2025-02-08 14:04:22,387 INFO L140 encePairwiseOnDemand]: 32/47 looper letters, 299 selfloop transitions, 116 changer transitions 0/428 dead transitions. [2025-02-08 14:04:22,387 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 270 places, 428 transitions, 6472 flow [2025-02-08 14:04:22,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2025-02-08 14:04:22,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2025-02-08 14:04:22,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 440 transitions. [2025-02-08 14:04:22,388 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5200945626477541 [2025-02-08 14:04:22,388 INFO L175 Difference]: Start difference. First operand has 253 places, 278 transitions, 4203 flow. Second operand 18 states and 440 transitions. [2025-02-08 14:04:22,388 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 270 places, 428 transitions, 6472 flow [2025-02-08 14:04:22,461 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 268 places, 428 transitions, 6425 flow, removed 6 selfloop flow, removed 2 redundant places. [2025-02-08 14:04:22,466 INFO L231 Difference]: Finished difference. Result has 280 places, 320 transitions, 5227 flow [2025-02-08 14:04:22,470 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=4164, PETRI_DIFFERENCE_MINUEND_PLACES=251, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=278, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=74, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=195, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=5227, PETRI_PLACES=280, PETRI_TRANSITIONS=320} [2025-02-08 14:04:22,470 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, 233 predicate places. [2025-02-08 14:04:22,470 INFO L471 AbstractCegarLoop]: Abstraction has has 280 places, 320 transitions, 5227 flow [2025-02-08 14:04:22,470 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) [2025-02-08 14:04:22,470 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:04:22,470 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:04:22,470 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2025-02-08 14:04:22,470 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)] === [2025-02-08 14:04:22,471 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:04:22,471 INFO L85 PathProgramCache]: Analyzing trace with hash 11137328, now seen corresponding path program 2 times [2025-02-08 14:04:22,471 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:04:22,471 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [457459230] [2025-02-08 14:04:22,471 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-08 14:04:22,471 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:04:22,482 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 45 statements into 2 equivalence classes. [2025-02-08 14:04:22,487 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 14 of 45 statements. [2025-02-08 14:04:22,487 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-08 14:04:22,487 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:04:22,620 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 156 trivial. 0 not checked. [2025-02-08 14:04:22,621 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:04:22,621 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [457459230] [2025-02-08 14:04:22,621 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [457459230] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:04:22,621 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:04:22,621 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2025-02-08 14:04:22,621 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1329348842] [2025-02-08 14:04:22,621 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:04:22,621 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-02-08 14:04:22,621 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:04:22,622 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-02-08 14:04:22,622 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2025-02-08 14:04:22,643 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 47 [2025-02-08 14:04:22,644 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 280 places, 320 transitions, 5227 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) [2025-02-08 14:04:22,644 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:04:22,644 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 47 [2025-02-08 14:04:22,644 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:04:23,643 INFO L124 PetriNetUnfolderBase]: 1401/3320 cut-off events. [2025-02-08 14:04:23,645 INFO L125 PetriNetUnfolderBase]: For 43734/43767 co-relation queries the response was YES. [2025-02-08 14:04:23,671 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19862 conditions, 3320 events. 1401/3320 cut-off events. For 43734/43767 co-relation queries the response was YES. Maximal size of possible extension queue 132. Compared 23818 event pairs, 552 based on Foata normal form. 28/3299 useless extension candidates. Maximal degree in co-relation 19630. Up to 1117 conditions per place. [2025-02-08 14:04:23,686 INFO L140 encePairwiseOnDemand]: 33/47 looper letters, 346 selfloop transitions, 104 changer transitions 0/463 dead transitions. [2025-02-08 14:04:23,687 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 297 places, 463 transitions, 7709 flow [2025-02-08 14:04:23,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2025-02-08 14:04:23,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2025-02-08 14:04:23,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 453 transitions. [2025-02-08 14:04:23,688 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5354609929078015 [2025-02-08 14:04:23,688 INFO L175 Difference]: Start difference. First operand has 280 places, 320 transitions, 5227 flow. Second operand 18 states and 453 transitions. [2025-02-08 14:04:23,688 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 297 places, 463 transitions, 7709 flow [2025-02-08 14:04:23,814 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 295 places, 463 transitions, 7577 flow, removed 20 selfloop flow, removed 2 redundant places. [2025-02-08 14:04:23,819 INFO L231 Difference]: Finished difference. Result has 305 places, 356 transitions, 6025 flow [2025-02-08 14:04:23,820 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=5108, PETRI_DIFFERENCE_MINUEND_PLACES=278, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=320, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=70, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=240, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=6025, PETRI_PLACES=305, PETRI_TRANSITIONS=356} [2025-02-08 14:04:23,820 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, 258 predicate places. [2025-02-08 14:04:23,821 INFO L471 AbstractCegarLoop]: Abstraction has has 305 places, 356 transitions, 6025 flow [2025-02-08 14:04:23,821 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) [2025-02-08 14:04:23,821 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:04:23,821 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:04:23,821 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2025-02-08 14:04:23,821 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2025-02-08 14:04:23,822 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:04:23,822 INFO L85 PathProgramCache]: Analyzing trace with hash 989784510, now seen corresponding path program 3 times [2025-02-08 14:04:23,822 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:04:23,822 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1164864008] [2025-02-08 14:04:23,822 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-02-08 14:04:23,822 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:04:23,829 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 45 statements into 11 equivalence classes. [2025-02-08 14:04:23,830 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) and asserted 14 of 45 statements. [2025-02-08 14:04:23,830 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2025-02-08 14:04:23,830 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:04:23,924 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 156 trivial. 0 not checked. [2025-02-08 14:04:23,925 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:04:23,925 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1164864008] [2025-02-08 14:04:23,925 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1164864008] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:04:23,925 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:04:23,925 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2025-02-08 14:04:23,925 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [263004568] [2025-02-08 14:04:23,925 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:04:23,925 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-02-08 14:04:23,925 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:04:23,926 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-02-08 14:04:23,926 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2025-02-08 14:04:23,949 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 47 [2025-02-08 14:04:23,949 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 305 places, 356 transitions, 6025 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) [2025-02-08 14:04:23,949 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:04:23,949 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 47 [2025-02-08 14:04:23,949 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:04:24,948 INFO L124 PetriNetUnfolderBase]: 1506/3502 cut-off events. [2025-02-08 14:04:24,948 INFO L125 PetriNetUnfolderBase]: For 60341/60379 co-relation queries the response was YES. [2025-02-08 14:04:24,977 INFO L83 FinitePrefix]: Finished finitePrefix Result has 23122 conditions, 3502 events. 1506/3502 cut-off events. For 60341/60379 co-relation queries the response was YES. Maximal size of possible extension queue 137. Compared 25265 event pairs, 483 based on Foata normal form. 30/3490 useless extension candidates. Maximal degree in co-relation 22881. Up to 1246 conditions per place. [2025-02-08 14:04:24,989 INFO L140 encePairwiseOnDemand]: 34/47 looper letters, 346 selfloop transitions, 148 changer transitions 0/507 dead transitions. [2025-02-08 14:04:24,990 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 321 places, 507 transitions, 8845 flow [2025-02-08 14:04:24,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2025-02-08 14:04:24,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2025-02-08 14:04:24,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 415 transitions. [2025-02-08 14:04:24,991 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5193992490613266 [2025-02-08 14:04:24,991 INFO L175 Difference]: Start difference. First operand has 305 places, 356 transitions, 6025 flow. Second operand 17 states and 415 transitions. [2025-02-08 14:04:24,991 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 321 places, 507 transitions, 8845 flow [2025-02-08 14:04:25,136 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 320 places, 507 transitions, 8697 flow, removed 45 selfloop flow, removed 1 redundant places. [2025-02-08 14:04:25,144 INFO L231 Difference]: Finished difference. Result has 333 places, 392 transitions, 7128 flow [2025-02-08 14:04:25,145 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=5884, PETRI_DIFFERENCE_MINUEND_PLACES=304, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=356, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=115, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=230, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=7128, PETRI_PLACES=333, PETRI_TRANSITIONS=392} [2025-02-08 14:04:25,146 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, 286 predicate places. [2025-02-08 14:04:25,146 INFO L471 AbstractCegarLoop]: Abstraction has has 333 places, 392 transitions, 7128 flow [2025-02-08 14:04:25,146 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) [2025-02-08 14:04:25,146 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:04:25,146 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:04:25,146 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2025-02-08 14:04:25,147 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)] === [2025-02-08 14:04:25,147 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:04:25,147 INFO L85 PathProgramCache]: Analyzing trace with hash 1614200958, now seen corresponding path program 4 times [2025-02-08 14:04:25,147 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:04:25,148 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [248819461] [2025-02-08 14:04:25,148 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-02-08 14:04:25,148 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:04:25,158 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 45 statements into 2 equivalence classes. [2025-02-08 14:04:25,165 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 45 of 45 statements. [2025-02-08 14:04:25,165 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-02-08 14:04:25,165 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:04:25,391 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2025-02-08 14:04:25,391 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:04:25,391 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [248819461] [2025-02-08 14:04:25,391 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [248819461] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:04:25,391 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:04:25,391 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2025-02-08 14:04:25,391 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2050253208] [2025-02-08 14:04:25,391 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:04:25,391 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2025-02-08 14:04:25,392 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:04:25,392 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2025-02-08 14:04:25,392 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2025-02-08 14:04:25,417 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 47 [2025-02-08 14:04:25,417 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 333 places, 392 transitions, 7128 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) [2025-02-08 14:04:25,417 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:04:25,417 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 47 [2025-02-08 14:04:25,417 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:04:26,417 INFO L124 PetriNetUnfolderBase]: 1523/3586 cut-off events. [2025-02-08 14:04:26,417 INFO L125 PetriNetUnfolderBase]: For 86470/86502 co-relation queries the response was YES. [2025-02-08 14:04:26,440 INFO L83 FinitePrefix]: Finished finitePrefix Result has 26121 conditions, 3586 events. 1523/3586 cut-off events. For 86470/86502 co-relation queries the response was YES. Maximal size of possible extension queue 149. Compared 26537 event pairs, 530 based on Foata normal form. 26/3568 useless extension candidates. Maximal degree in co-relation 25868. Up to 2461 conditions per place. [2025-02-08 14:04:26,452 INFO L140 encePairwiseOnDemand]: 34/47 looper letters, 406 selfloop transitions, 67 changer transitions 0/490 dead transitions. [2025-02-08 14:04:26,452 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 345 places, 490 transitions, 9453 flow [2025-02-08 14:04:26,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-02-08 14:04:26,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2025-02-08 14:04:26,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 309 transitions. [2025-02-08 14:04:26,453 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5057283142389526 [2025-02-08 14:04:26,453 INFO L175 Difference]: Start difference. First operand has 333 places, 392 transitions, 7128 flow. Second operand 13 states and 309 transitions. [2025-02-08 14:04:26,453 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 345 places, 490 transitions, 9453 flow [2025-02-08 14:04:26,645 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 345 places, 490 transitions, 9279 flow, removed 87 selfloop flow, removed 0 redundant places. [2025-02-08 14:04:26,651 INFO L231 Difference]: Finished difference. Result has 352 places, 414 transitions, 7630 flow [2025-02-08 14:04:26,651 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=6960, PETRI_DIFFERENCE_MINUEND_PLACES=333, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=392, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=47, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=336, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=7630, PETRI_PLACES=352, PETRI_TRANSITIONS=414} [2025-02-08 14:04:26,652 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, 305 predicate places. [2025-02-08 14:04:26,652 INFO L471 AbstractCegarLoop]: Abstraction has has 352 places, 414 transitions, 7630 flow [2025-02-08 14:04:26,652 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) [2025-02-08 14:04:26,652 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:04:26,652 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:04:26,652 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2025-02-08 14:04:26,652 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)] === [2025-02-08 14:04:26,653 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:04:26,653 INFO L85 PathProgramCache]: Analyzing trace with hash 1974129346, now seen corresponding path program 5 times [2025-02-08 14:04:26,653 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:04:26,653 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [778195315] [2025-02-08 14:04:26,653 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-02-08 14:04:26,653 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:04:26,660 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 45 statements into 11 equivalence classes. [2025-02-08 14:04:26,668 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) and asserted 45 of 45 statements. [2025-02-08 14:04:26,668 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) [2025-02-08 14:04:26,668 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:04:27,190 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 11 proven. 70 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2025-02-08 14:04:27,190 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:04:27,190 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [778195315] [2025-02-08 14:04:27,190 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [778195315] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 14:04:27,190 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1891362801] [2025-02-08 14:04:27,190 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-02-08 14:04:27,190 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 14:04:27,190 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:04:27,192 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 14:04:27,196 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2025-02-08 14:04:27,261 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 45 statements into 11 equivalence classes. [2025-02-08 14:04:27,309 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) and asserted 45 of 45 statements. [2025-02-08 14:04:27,309 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) [2025-02-08 14:04:27,310 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:04:27,311 INFO L256 TraceCheckSpWp]: Trace formula consists of 323 conjuncts, 28 conjuncts are in the unsatisfiable core [2025-02-08 14:04:27,313 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 14:04:27,512 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2025-02-08 14:04:27,552 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2025-02-08 14:04:27,575 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2025-02-08 14:04:27,575 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 14:04:27,575 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1891362801] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:04:27,575 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-08 14:04:27,575 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [8] total 16 [2025-02-08 14:04:27,575 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1365788152] [2025-02-08 14:04:27,575 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:04:27,576 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-02-08 14:04:27,577 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:04:27,577 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-02-08 14:04:27,577 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=258, Unknown=0, NotChecked=0, Total=306 [2025-02-08 14:04:27,604 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 47 [2025-02-08 14:04:27,604 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 352 places, 414 transitions, 7630 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) [2025-02-08 14:04:27,605 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:04:27,605 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 47 [2025-02-08 14:04:27,605 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:04:28,836 INFO L124 PetriNetUnfolderBase]: 1749/4028 cut-off events. [2025-02-08 14:04:28,836 INFO L125 PetriNetUnfolderBase]: For 106126/106171 co-relation queries the response was YES. [2025-02-08 14:04:28,964 INFO L83 FinitePrefix]: Finished finitePrefix Result has 30184 conditions, 4028 events. 1749/4028 cut-off events. For 106126/106171 co-relation queries the response was YES. Maximal size of possible extension queue 165. Compared 29464 event pairs, 694 based on Foata normal form. 32/4012 useless extension candidates. Maximal degree in co-relation 29922. Up to 1587 conditions per place. [2025-02-08 14:04:28,976 INFO L140 encePairwiseOnDemand]: 32/47 looper letters, 363 selfloop transitions, 160 changer transitions 0/535 dead transitions. [2025-02-08 14:04:28,976 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 369 places, 535 transitions, 10450 flow [2025-02-08 14:04:28,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2025-02-08 14:04:28,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2025-02-08 14:04:28,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 417 transitions. [2025-02-08 14:04:28,977 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4929078014184397 [2025-02-08 14:04:28,977 INFO L175 Difference]: Start difference. First operand has 352 places, 414 transitions, 7630 flow. Second operand 18 states and 417 transitions. [2025-02-08 14:04:28,977 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 369 places, 535 transitions, 10450 flow [2025-02-08 14:04:29,255 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 367 places, 535 transitions, 10236 flow, removed 92 selfloop flow, removed 2 redundant places. [2025-02-08 14:04:29,262 INFO L231 Difference]: Finished difference. Result has 379 places, 445 transitions, 8796 flow [2025-02-08 14:04:29,263 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=7472, PETRI_DIFFERENCE_MINUEND_PLACES=350, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=414, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=129, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=269, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=8796, PETRI_PLACES=379, PETRI_TRANSITIONS=445} [2025-02-08 14:04:29,263 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, 332 predicate places. [2025-02-08 14:04:29,263 INFO L471 AbstractCegarLoop]: Abstraction has has 379 places, 445 transitions, 8796 flow [2025-02-08 14:04:29,263 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) [2025-02-08 14:04:29,263 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:04:29,264 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:04:29,270 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2025-02-08 14:04:29,468 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,9 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 14:04:29,468 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)] === [2025-02-08 14:04:29,469 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:04:29,469 INFO L85 PathProgramCache]: Analyzing trace with hash -1489669050, now seen corresponding path program 6 times [2025-02-08 14:04:29,469 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:04:29,469 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [546060174] [2025-02-08 14:04:29,469 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-02-08 14:04:29,469 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:04:29,476 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 45 statements into 11 equivalence classes. [2025-02-08 14:04:29,478 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) and asserted 14 of 45 statements. [2025-02-08 14:04:29,478 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2025-02-08 14:04:29,478 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:04:29,586 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 156 trivial. 0 not checked. [2025-02-08 14:04:29,587 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:04:29,587 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [546060174] [2025-02-08 14:04:29,587 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [546060174] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:04:29,587 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:04:29,587 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2025-02-08 14:04:29,587 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1482191190] [2025-02-08 14:04:29,587 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:04:29,587 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-02-08 14:04:29,587 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:04:29,588 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-02-08 14:04:29,588 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2025-02-08 14:04:29,608 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 47 [2025-02-08 14:04:29,609 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 379 places, 445 transitions, 8796 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) [2025-02-08 14:04:29,609 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:04:29,609 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 47 [2025-02-08 14:04:29,609 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:04:31,000 INFO L124 PetriNetUnfolderBase]: 1801/4165 cut-off events. [2025-02-08 14:04:31,000 INFO L125 PetriNetUnfolderBase]: For 142448/142494 co-relation queries the response was YES. [2025-02-08 14:04:31,036 INFO L83 FinitePrefix]: Finished finitePrefix Result has 33629 conditions, 4165 events. 1801/4165 cut-off events. For 142448/142494 co-relation queries the response was YES. Maximal size of possible extension queue 173. Compared 30963 event pairs, 663 based on Foata normal form. 32/4147 useless extension candidates. Maximal degree in co-relation 33355. Up to 1663 conditions per place. [2025-02-08 14:04:31,048 INFO L140 encePairwiseOnDemand]: 33/47 looper letters, 384 selfloop transitions, 180 changer transitions 0/577 dead transitions. [2025-02-08 14:04:31,049 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 396 places, 577 transitions, 11990 flow [2025-02-08 14:04:31,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2025-02-08 14:04:31,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2025-02-08 14:04:31,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 444 transitions. [2025-02-08 14:04:31,050 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.524822695035461 [2025-02-08 14:04:31,050 INFO L175 Difference]: Start difference. First operand has 379 places, 445 transitions, 8796 flow. Second operand 18 states and 444 transitions. [2025-02-08 14:04:31,050 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 396 places, 577 transitions, 11990 flow [2025-02-08 14:04:31,429 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 393 places, 577 transitions, 11689 flow, removed 112 selfloop flow, removed 3 redundant places. [2025-02-08 14:04:31,437 INFO L231 Difference]: Finished difference. Result has 404 places, 478 transitions, 10056 flow [2025-02-08 14:04:31,437 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=8497, PETRI_DIFFERENCE_MINUEND_PLACES=376, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=445, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=147, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=286, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=10056, PETRI_PLACES=404, PETRI_TRANSITIONS=478} [2025-02-08 14:04:31,438 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, 357 predicate places. [2025-02-08 14:04:31,438 INFO L471 AbstractCegarLoop]: Abstraction has has 404 places, 478 transitions, 10056 flow [2025-02-08 14:04:31,438 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) [2025-02-08 14:04:31,438 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:04:31,438 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:04:31,438 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2025-02-08 14:04:31,438 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)] === [2025-02-08 14:04:31,438 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:04:31,438 INFO L85 PathProgramCache]: Analyzing trace with hash 1820953410, now seen corresponding path program 7 times [2025-02-08 14:04:31,439 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:04:31,439 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1751197943] [2025-02-08 14:04:31,439 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2025-02-08 14:04:31,439 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:04:31,448 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 45 statements into 1 equivalence classes. [2025-02-08 14:04:31,452 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 45 of 45 statements. [2025-02-08 14:04:31,452 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:04:31,452 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:04:31,669 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2025-02-08 14:04:31,670 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:04:31,670 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1751197943] [2025-02-08 14:04:31,670 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1751197943] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:04:31,670 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:04:31,670 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2025-02-08 14:04:31,670 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1214855448] [2025-02-08 14:04:31,670 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:04:31,670 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2025-02-08 14:04:31,670 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:04:31,671 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2025-02-08 14:04:31,671 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2025-02-08 14:04:31,713 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 47 [2025-02-08 14:04:31,713 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 404 places, 478 transitions, 10056 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) [2025-02-08 14:04:31,713 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:04:31,713 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 47 [2025-02-08 14:04:31,714 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:04:32,931 INFO L124 PetriNetUnfolderBase]: 1820/4281 cut-off events. [2025-02-08 14:04:32,932 INFO L125 PetriNetUnfolderBase]: For 188276/188342 co-relation queries the response was YES. [2025-02-08 14:04:32,973 INFO L83 FinitePrefix]: Finished finitePrefix Result has 37290 conditions, 4281 events. 1820/4281 cut-off events. For 188276/188342 co-relation queries the response was YES. Maximal size of possible extension queue 183. Compared 33106 event pairs, 523 based on Foata normal form. 38/4274 useless extension candidates. Maximal degree in co-relation 37006. Up to 2787 conditions per place. [2025-02-08 14:04:32,987 INFO L140 encePairwiseOnDemand]: 33/47 looper letters, 490 selfloop transitions, 123 changer transitions 0/632 dead transitions. [2025-02-08 14:04:32,987 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 417 places, 632 transitions, 14533 flow [2025-02-08 14:04:32,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2025-02-08 14:04:32,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2025-02-08 14:04:32,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 337 transitions. [2025-02-08 14:04:32,988 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5121580547112462 [2025-02-08 14:04:32,988 INFO L175 Difference]: Start difference. First operand has 404 places, 478 transitions, 10056 flow. Second operand 14 states and 337 transitions. [2025-02-08 14:04:32,988 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 417 places, 632 transitions, 14533 flow [2025-02-08 14:04:33,550 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 414 places, 632 transitions, 13900 flow, removed 271 selfloop flow, removed 3 redundant places. [2025-02-08 14:04:33,558 INFO L231 Difference]: Finished difference. Result has 423 places, 542 transitions, 11864 flow [2025-02-08 14:04:33,558 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=9699, PETRI_DIFFERENCE_MINUEND_PLACES=401, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=478, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=62, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=365, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=11864, PETRI_PLACES=423, PETRI_TRANSITIONS=542} [2025-02-08 14:04:33,559 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, 376 predicate places. [2025-02-08 14:04:33,559 INFO L471 AbstractCegarLoop]: Abstraction has has 423 places, 542 transitions, 11864 flow [2025-02-08 14:04:33,559 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) [2025-02-08 14:04:33,559 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:04:33,559 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:04:33,559 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2025-02-08 14:04:33,559 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)] === [2025-02-08 14:04:33,560 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:04:33,560 INFO L85 PathProgramCache]: Analyzing trace with hash -732721718, now seen corresponding path program 8 times [2025-02-08 14:04:33,560 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:04:33,560 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1396090643] [2025-02-08 14:04:33,560 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-08 14:04:33,560 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:04:33,566 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 45 statements into 2 equivalence classes. [2025-02-08 14:04:33,567 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 14 of 45 statements. [2025-02-08 14:04:33,567 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-08 14:04:33,567 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:04:33,657 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 156 trivial. 0 not checked. [2025-02-08 14:04:33,657 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:04:33,657 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1396090643] [2025-02-08 14:04:33,657 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1396090643] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:04:33,657 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:04:33,658 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2025-02-08 14:04:33,658 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1615360935] [2025-02-08 14:04:33,658 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:04:33,658 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-02-08 14:04:33,658 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:04:33,658 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-02-08 14:04:33,659 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2025-02-08 14:04:33,678 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 47 [2025-02-08 14:04:33,678 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 423 places, 542 transitions, 11864 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) [2025-02-08 14:04:33,678 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:04:33,678 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 47 [2025-02-08 14:04:33,678 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:04:35,316 INFO L124 PetriNetUnfolderBase]: 2210/4932 cut-off events. [2025-02-08 14:04:35,316 INFO L125 PetriNetUnfolderBase]: For 236916/236988 co-relation queries the response was YES. [2025-02-08 14:04:35,372 INFO L83 FinitePrefix]: Finished finitePrefix Result has 44924 conditions, 4932 events. 2210/4932 cut-off events. For 236916/236988 co-relation queries the response was YES. Maximal size of possible extension queue 197. Compared 37430 event pairs, 624 based on Foata normal form. 46/4941 useless extension candidates. Maximal degree in co-relation 44650. Up to 2128 conditions per place. [2025-02-08 14:04:35,390 INFO L140 encePairwiseOnDemand]: 33/47 looper letters, 491 selfloop transitions, 275 changer transitions 0/779 dead transitions. [2025-02-08 14:04:35,391 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 443 places, 779 transitions, 17669 flow [2025-02-08 14:04:35,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2025-02-08 14:04:35,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2025-02-08 14:04:35,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 518 transitions. [2025-02-08 14:04:35,393 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.524822695035461 [2025-02-08 14:04:35,393 INFO L175 Difference]: Start difference. First operand has 423 places, 542 transitions, 11864 flow. Second operand 21 states and 518 transitions. [2025-02-08 14:04:35,393 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 443 places, 779 transitions, 17669 flow [2025-02-08 14:04:36,186 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 440 places, 779 transitions, 17362 flow, removed 129 selfloop flow, removed 3 redundant places. [2025-02-08 14:04:36,195 INFO L231 Difference]: Finished difference. Result has 453 places, 604 transitions, 14659 flow [2025-02-08 14:04:36,196 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=11611, PETRI_DIFFERENCE_MINUEND_PLACES=420, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=542, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=220, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=310, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=14659, PETRI_PLACES=453, PETRI_TRANSITIONS=604} [2025-02-08 14:04:36,196 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, 406 predicate places. [2025-02-08 14:04:36,196 INFO L471 AbstractCegarLoop]: Abstraction has has 453 places, 604 transitions, 14659 flow [2025-02-08 14:04:36,196 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) [2025-02-08 14:04:36,196 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:04:36,196 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:04:36,196 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2025-02-08 14:04:36,197 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)] === [2025-02-08 14:04:36,197 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:04:36,197 INFO L85 PathProgramCache]: Analyzing trace with hash 1159411793, now seen corresponding path program 2 times [2025-02-08 14:04:36,197 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:04:36,197 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [537472776] [2025-02-08 14:04:36,197 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-08 14:04:36,197 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:04:36,204 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 45 statements into 2 equivalence classes. [2025-02-08 14:04:36,206 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 14 of 45 statements. [2025-02-08 14:04:36,206 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-08 14:04:36,206 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:04:36,285 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 156 trivial. 0 not checked. [2025-02-08 14:04:36,285 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:04:36,286 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [537472776] [2025-02-08 14:04:36,286 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [537472776] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:04:36,286 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:04:36,286 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2025-02-08 14:04:36,286 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [811747610] [2025-02-08 14:04:36,286 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:04:36,286 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-02-08 14:04:36,286 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:04:36,286 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-02-08 14:04:36,287 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2025-02-08 14:04:36,312 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 47 [2025-02-08 14:04:36,313 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 453 places, 604 transitions, 14659 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) [2025-02-08 14:04:36,313 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:04:36,313 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 47 [2025-02-08 14:04:36,313 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:04:38,362 INFO L124 PetriNetUnfolderBase]: 2444/5478 cut-off events. [2025-02-08 14:04:38,362 INFO L125 PetriNetUnfolderBase]: For 282835/282931 co-relation queries the response was YES. [2025-02-08 14:04:38,428 INFO L83 FinitePrefix]: Finished finitePrefix Result has 50145 conditions, 5478 events. 2444/5478 cut-off events. For 282835/282931 co-relation queries the response was YES. Maximal size of possible extension queue 224. Compared 42617 event pairs, 847 based on Foata normal form. 42/5459 useless extension candidates. Maximal degree in co-relation 49847. Up to 2502 conditions per place. [2025-02-08 14:04:38,455 INFO L140 encePairwiseOnDemand]: 33/47 looper letters, 541 selfloop transitions, 263 changer transitions 0/821 dead transitions. [2025-02-08 14:04:38,455 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 467 places, 821 transitions, 20333 flow [2025-02-08 14:04:38,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2025-02-08 14:04:38,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2025-02-08 14:04:38,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 402 transitions. [2025-02-08 14:04:38,456 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5702127659574469 [2025-02-08 14:04:38,456 INFO L175 Difference]: Start difference. First operand has 453 places, 604 transitions, 14659 flow. Second operand 15 states and 402 transitions. [2025-02-08 14:04:38,456 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 467 places, 821 transitions, 20333 flow [2025-02-08 14:04:39,542 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 465 places, 821 transitions, 19660 flow, removed 329 selfloop flow, removed 2 redundant places. [2025-02-08 14:04:39,555 INFO L231 Difference]: Finished difference. Result has 472 places, 638 transitions, 15876 flow [2025-02-08 14:04:39,555 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=14140, PETRI_DIFFERENCE_MINUEND_PLACES=451, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=604, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=233, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=366, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=15876, PETRI_PLACES=472, PETRI_TRANSITIONS=638} [2025-02-08 14:04:39,556 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, 425 predicate places. [2025-02-08 14:04:39,556 INFO L471 AbstractCegarLoop]: Abstraction has has 472 places, 638 transitions, 15876 flow [2025-02-08 14:04:39,556 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) [2025-02-08 14:04:39,556 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:04:39,556 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:04:39,556 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2025-02-08 14:04:39,556 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2025-02-08 14:04:39,557 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:04:39,557 INFO L85 PathProgramCache]: Analyzing trace with hash -368224348, now seen corresponding path program 9 times [2025-02-08 14:04:39,557 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:04:39,557 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1280484652] [2025-02-08 14:04:39,557 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-02-08 14:04:39,557 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:04:39,565 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 45 statements into 11 equivalence classes. [2025-02-08 14:04:39,567 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) and asserted 14 of 45 statements. [2025-02-08 14:04:39,567 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2025-02-08 14:04:39,567 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:04:39,662 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 156 trivial. 0 not checked. [2025-02-08 14:04:39,663 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:04:39,663 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1280484652] [2025-02-08 14:04:39,663 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1280484652] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:04:39,663 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:04:39,663 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2025-02-08 14:04:39,663 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [304664258] [2025-02-08 14:04:39,663 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:04:39,664 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-02-08 14:04:39,664 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:04:39,664 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-02-08 14:04:39,665 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2025-02-08 14:04:39,706 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 47 [2025-02-08 14:04:39,706 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 472 places, 638 transitions, 15876 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) [2025-02-08 14:04:39,707 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:04:39,707 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 47 [2025-02-08 14:04:39,707 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:04:41,705 INFO L124 PetriNetUnfolderBase]: 2482/5582 cut-off events. [2025-02-08 14:04:41,705 INFO L125 PetriNetUnfolderBase]: For 322587/322641 co-relation queries the response was YES. [2025-02-08 14:04:41,772 INFO L83 FinitePrefix]: Finished finitePrefix Result has 54242 conditions, 5582 events. 2482/5582 cut-off events. For 322587/322641 co-relation queries the response was YES. Maximal size of possible extension queue 246. Compared 43790 event pairs, 900 based on Foata normal form. 28/5551 useless extension candidates. Maximal degree in co-relation 53931. Up to 2329 conditions per place. [2025-02-08 14:04:41,794 INFO L140 encePairwiseOnDemand]: 33/47 looper letters, 567 selfloop transitions, 176 changer transitions 0/757 dead transitions. [2025-02-08 14:04:41,794 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 488 places, 757 transitions, 19764 flow [2025-02-08 14:04:41,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2025-02-08 14:04:41,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2025-02-08 14:04:41,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 424 transitions. [2025-02-08 14:04:41,795 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5306633291614519 [2025-02-08 14:04:41,795 INFO L175 Difference]: Start difference. First operand has 472 places, 638 transitions, 15876 flow. Second operand 17 states and 424 transitions. [2025-02-08 14:04:41,795 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 488 places, 757 transitions, 19764 flow [2025-02-08 14:04:42,977 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 483 places, 757 transitions, 19210 flow, removed 49 selfloop flow, removed 5 redundant places. [2025-02-08 14:04:43,000 INFO L231 Difference]: Finished difference. Result has 494 places, 670 transitions, 17157 flow [2025-02-08 14:04:43,004 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=15383, PETRI_DIFFERENCE_MINUEND_PLACES=467, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=638, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=145, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=479, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=17157, PETRI_PLACES=494, PETRI_TRANSITIONS=670} [2025-02-08 14:04:43,004 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, 447 predicate places. [2025-02-08 14:04:43,004 INFO L471 AbstractCegarLoop]: Abstraction has has 494 places, 670 transitions, 17157 flow [2025-02-08 14:04:43,004 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) [2025-02-08 14:04:43,005 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:04:43,005 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:04:43,005 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2025-02-08 14:04:43,005 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2025-02-08 14:04:43,005 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:04:43,009 INFO L85 PathProgramCache]: Analyzing trace with hash 490650182, now seen corresponding path program 10 times [2025-02-08 14:04:43,010 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:04:43,010 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1584653887] [2025-02-08 14:04:43,010 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-02-08 14:04:43,010 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:04:43,016 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 45 statements into 2 equivalence classes. [2025-02-08 14:04:43,024 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 45 of 45 statements. [2025-02-08 14:04:43,024 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-02-08 14:04:43,024 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:04:43,311 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2025-02-08 14:04:43,311 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:04:43,311 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1584653887] [2025-02-08 14:04:43,311 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1584653887] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:04:43,311 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:04:43,311 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2025-02-08 14:04:43,312 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1291739702] [2025-02-08 14:04:43,312 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:04:43,312 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2025-02-08 14:04:43,312 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:04:43,312 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2025-02-08 14:04:43,312 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2025-02-08 14:04:43,347 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 47 [2025-02-08 14:04:43,348 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 494 places, 670 transitions, 17157 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) [2025-02-08 14:04:43,348 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:04:43,348 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 47 [2025-02-08 14:04:43,348 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:04:45,590 INFO L124 PetriNetUnfolderBase]: 2634/5881 cut-off events. [2025-02-08 14:04:45,591 INFO L125 PetriNetUnfolderBase]: For 384379/384434 co-relation queries the response was YES. [2025-02-08 14:04:45,818 INFO L83 FinitePrefix]: Finished finitePrefix Result has 59010 conditions, 5881 events. 2634/5881 cut-off events. For 384379/384434 co-relation queries the response was YES. Maximal size of possible extension queue 258. Compared 46489 event pairs, 881 based on Foata normal form. 28/5850 useless extension candidates. Maximal degree in co-relation 58689. Up to 2377 conditions per place. [2025-02-08 14:04:45,841 INFO L140 encePairwiseOnDemand]: 32/47 looper letters, 593 selfloop transitions, 226 changer transitions 0/833 dead transitions. [2025-02-08 14:04:45,841 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 516 places, 833 transitions, 22090 flow [2025-02-08 14:04:45,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2025-02-08 14:04:45,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2025-02-08 14:04:45,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 561 transitions. [2025-02-08 14:04:45,842 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5189639222941721 [2025-02-08 14:04:45,842 INFO L175 Difference]: Start difference. First operand has 494 places, 670 transitions, 17157 flow. Second operand 23 states and 561 transitions. [2025-02-08 14:04:45,842 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 516 places, 833 transitions, 22090 flow [2025-02-08 14:04:47,199 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 513 places, 833 transitions, 21700 flow, removed 187 selfloop flow, removed 3 redundant places. [2025-02-08 14:04:47,212 INFO L231 Difference]: Finished difference. Result has 525 places, 717 transitions, 19306 flow [2025-02-08 14:04:47,212 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=16797, PETRI_DIFFERENCE_MINUEND_PLACES=491, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=670, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=182, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=474, PETRI_DIFFERENCE_SUBTRAHEND_STATES=23, PETRI_FLOW=19306, PETRI_PLACES=525, PETRI_TRANSITIONS=717} [2025-02-08 14:04:47,213 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, 478 predicate places. [2025-02-08 14:04:47,213 INFO L471 AbstractCegarLoop]: Abstraction has has 525 places, 717 transitions, 19306 flow [2025-02-08 14:04:47,213 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) [2025-02-08 14:04:47,213 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:04:47,213 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:04:47,213 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2025-02-08 14:04:47,213 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2025-02-08 14:04:47,214 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:04:47,214 INFO L85 PathProgramCache]: Analyzing trace with hash -763996509, now seen corresponding path program 3 times [2025-02-08 14:04:47,214 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:04:47,214 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1835396463] [2025-02-08 14:04:47,214 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-02-08 14:04:47,214 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:04:47,220 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 45 statements into 11 equivalence classes. [2025-02-08 14:04:47,222 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) and asserted 14 of 45 statements. [2025-02-08 14:04:47,222 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2025-02-08 14:04:47,222 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:04:47,303 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 156 trivial. 0 not checked. [2025-02-08 14:04:47,303 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:04:47,303 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1835396463] [2025-02-08 14:04:47,303 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1835396463] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:04:47,303 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:04:47,303 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2025-02-08 14:04:47,304 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1662270997] [2025-02-08 14:04:47,304 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:04:47,304 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-02-08 14:04:47,304 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:04:47,304 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-02-08 14:04:47,304 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2025-02-08 14:04:47,327 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 47 [2025-02-08 14:04:47,327 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 525 places, 717 transitions, 19306 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) [2025-02-08 14:04:47,327 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:04:47,327 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 47 [2025-02-08 14:04:47,327 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:04:50,297 INFO L124 PetriNetUnfolderBase]: 2888/6447 cut-off events. [2025-02-08 14:04:50,297 INFO L125 PetriNetUnfolderBase]: For 436209/436308 co-relation queries the response was YES. [2025-02-08 14:04:50,410 INFO L83 FinitePrefix]: Finished finitePrefix Result has 64639 conditions, 6447 events. 2888/6447 cut-off events. For 436209/436308 co-relation queries the response was YES. Maximal size of possible extension queue 278. Compared 52108 event pairs, 1046 based on Foata normal form. 52/6426 useless extension candidates. Maximal degree in co-relation 64303. Up to 2924 conditions per place. [2025-02-08 14:04:50,442 INFO L140 encePairwiseOnDemand]: 32/47 looper letters, 719 selfloop transitions, 216 changer transitions 0/953 dead transitions. [2025-02-08 14:04:50,442 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 542 places, 953 transitions, 26263 flow [2025-02-08 14:04:50,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2025-02-08 14:04:50,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2025-02-08 14:04:50,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 458 transitions. [2025-02-08 14:04:50,444 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.541371158392435 [2025-02-08 14:04:50,445 INFO L175 Difference]: Start difference. First operand has 525 places, 717 transitions, 19306 flow. Second operand 18 states and 458 transitions. [2025-02-08 14:04:50,445 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 542 places, 953 transitions, 26263 flow [2025-02-08 14:04:52,622 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 539 places, 953 transitions, 25506 flow, removed 366 selfloop flow, removed 3 redundant places. [2025-02-08 14:04:52,637 INFO L231 Difference]: Finished difference. Result has 550 places, 761 transitions, 20628 flow [2025-02-08 14:04:52,638 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=18746, PETRI_DIFFERENCE_MINUEND_PLACES=522, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=717, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=174, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=528, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=20628, PETRI_PLACES=550, PETRI_TRANSITIONS=761} [2025-02-08 14:04:52,638 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, 503 predicate places. [2025-02-08 14:04:52,639 INFO L471 AbstractCegarLoop]: Abstraction has has 550 places, 761 transitions, 20628 flow [2025-02-08 14:04:52,639 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) [2025-02-08 14:04:52,639 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:04:52,639 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:04:52,639 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2025-02-08 14:04:52,639 INFO L396 AbstractCegarLoop]: === Iteration 40 === Targeting t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2025-02-08 14:04:52,640 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:04:52,640 INFO L85 PathProgramCache]: Analyzing trace with hash 947783619, now seen corresponding path program 4 times [2025-02-08 14:04:52,640 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:04:52,640 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [519262572] [2025-02-08 14:04:52,640 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-02-08 14:04:52,640 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:04:52,647 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 45 statements into 2 equivalence classes. [2025-02-08 14:04:52,651 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 45 of 45 statements. [2025-02-08 14:04:52,652 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-02-08 14:04:52,652 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:04:52,876 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2025-02-08 14:04:52,876 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:04:52,877 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [519262572] [2025-02-08 14:04:52,877 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [519262572] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:04:52,877 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:04:52,877 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2025-02-08 14:04:52,877 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [346646019] [2025-02-08 14:04:52,877 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:04:52,877 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2025-02-08 14:04:52,877 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:04:52,877 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2025-02-08 14:04:52,878 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2025-02-08 14:04:52,911 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 47 [2025-02-08 14:04:52,911 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 550 places, 761 transitions, 20628 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) [2025-02-08 14:04:52,911 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:04:52,911 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 47 [2025-02-08 14:04:52,911 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:04:55,273 INFO L124 PetriNetUnfolderBase]: 3065/6842 cut-off events. [2025-02-08 14:04:55,273 INFO L125 PetriNetUnfolderBase]: For 512249/512289 co-relation queries the response was YES. [2025-02-08 14:04:55,387 INFO L83 FinitePrefix]: Finished finitePrefix Result has 72603 conditions, 6842 events. 3065/6842 cut-off events. For 512249/512289 co-relation queries the response was YES. Maximal size of possible extension queue 325. Compared 56620 event pairs, 749 based on Foata normal form. 49/6820 useless extension candidates. Maximal degree in co-relation 72257. Up to 4470 conditions per place. [2025-02-08 14:04:55,423 INFO L140 encePairwiseOnDemand]: 33/47 looper letters, 878 selfloop transitions, 102 changer transitions 0/1001 dead transitions. [2025-02-08 14:04:55,424 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 562 places, 1001 transitions, 28102 flow [2025-02-08 14:04:55,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-02-08 14:04:55,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2025-02-08 14:04:55,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 318 transitions. [2025-02-08 14:04:55,425 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5204582651391162 [2025-02-08 14:04:55,425 INFO L175 Difference]: Start difference. First operand has 550 places, 761 transitions, 20628 flow. Second operand 13 states and 318 transitions. [2025-02-08 14:04:55,425 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 562 places, 1001 transitions, 28102 flow [2025-02-08 14:04:57,965 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 560 places, 1001 transitions, 27682 flow, removed 120 selfloop flow, removed 2 redundant places. [2025-02-08 14:04:57,983 INFO L231 Difference]: Finished difference. Result has 568 places, 813 transitions, 22237 flow [2025-02-08 14:04:57,983 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=20329, PETRI_DIFFERENCE_MINUEND_PLACES=548, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=761, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=55, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=667, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=22237, PETRI_PLACES=568, PETRI_TRANSITIONS=813} [2025-02-08 14:04:57,984 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, 521 predicate places. [2025-02-08 14:04:57,984 INFO L471 AbstractCegarLoop]: Abstraction has has 568 places, 813 transitions, 22237 flow [2025-02-08 14:04:57,984 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) [2025-02-08 14:04:57,984 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:04:57,984 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:04:57,984 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2025-02-08 14:04:57,984 INFO L396 AbstractCegarLoop]: === Iteration 41 === Targeting t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2025-02-08 14:04:57,985 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:04:57,985 INFO L85 PathProgramCache]: Analyzing trace with hash 5792199, now seen corresponding path program 5 times [2025-02-08 14:04:57,985 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:04:57,985 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2100404980] [2025-02-08 14:04:57,985 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-02-08 14:04:57,985 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:04:57,991 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 45 statements into 11 equivalence classes. [2025-02-08 14:04:57,998 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) and asserted 45 of 45 statements. [2025-02-08 14:04:57,998 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) [2025-02-08 14:04:57,998 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:04:58,259 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 11 proven. 70 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2025-02-08 14:04:58,259 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:04:58,259 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2100404980] [2025-02-08 14:04:58,259 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2100404980] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 14:04:58,259 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1623573302] [2025-02-08 14:04:58,259 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-02-08 14:04:58,259 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 14:04:58,260 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:04:58,261 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 14:04:58,268 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2025-02-08 14:04:58,338 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 45 statements into 11 equivalence classes. [2025-02-08 14:04:58,384 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) and asserted 45 of 45 statements. [2025-02-08 14:04:58,385 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) [2025-02-08 14:04:58,385 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:04:58,386 INFO L256 TraceCheckSpWp]: Trace formula consists of 323 conjuncts, 28 conjuncts are in the unsatisfiable core [2025-02-08 14:04:58,387 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 14:04:58,491 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2025-02-08 14:04:58,527 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2025-02-08 14:04:58,539 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2025-02-08 14:04:58,539 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 14:04:58,539 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1623573302] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:04:58,539 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-08 14:04:58,539 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [9] total 17 [2025-02-08 14:04:58,539 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1576467513] [2025-02-08 14:04:58,539 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:04:58,539 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-02-08 14:04:58,540 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:04:58,540 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-02-08 14:04:58,540 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=282, Unknown=0, NotChecked=0, Total=342 [2025-02-08 14:04:58,553 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 47 [2025-02-08 14:04:58,553 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 568 places, 813 transitions, 22237 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) [2025-02-08 14:04:58,553 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:04:58,553 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 47 [2025-02-08 14:04:58,553 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:05:01,739 INFO L124 PetriNetUnfolderBase]: 3588/7840 cut-off events. [2025-02-08 14:05:01,740 INFO L125 PetriNetUnfolderBase]: For 588210/588315 co-relation queries the response was YES. [2025-02-08 14:05:01,857 INFO L83 FinitePrefix]: Finished finitePrefix Result has 83778 conditions, 7840 events. 3588/7840 cut-off events. For 588210/588315 co-relation queries the response was YES. Maximal size of possible extension queue 359. Compared 65111 event pairs, 1091 based on Foata normal form. 61/7820 useless extension candidates. Maximal degree in co-relation 83423. Up to 2973 conditions per place. [2025-02-08 14:05:01,893 INFO L140 encePairwiseOnDemand]: 31/47 looper letters, 765 selfloop transitions, 361 changer transitions 0/1143 dead transitions. [2025-02-08 14:05:01,894 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 588 places, 1143 transitions, 32640 flow [2025-02-08 14:05:01,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2025-02-08 14:05:01,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2025-02-08 14:05:01,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 524 transitions. [2025-02-08 14:05:01,896 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5309017223910841 [2025-02-08 14:05:01,897 INFO L175 Difference]: Start difference. First operand has 568 places, 813 transitions, 22237 flow. Second operand 21 states and 524 transitions. [2025-02-08 14:05:01,897 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 588 places, 1143 transitions, 32640 flow [2025-02-08 14:05:04,864 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 585 places, 1143 transitions, 32431 flow, removed 77 selfloop flow, removed 3 redundant places. [2025-02-08 14:05:04,880 INFO L231 Difference]: Finished difference. Result has 596 places, 913 transitions, 26832 flow [2025-02-08 14:05:04,881 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=22073, PETRI_DIFFERENCE_MINUEND_PLACES=565, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=813, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=266, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=530, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=26832, PETRI_PLACES=596, PETRI_TRANSITIONS=913} [2025-02-08 14:05:04,881 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, 549 predicate places. [2025-02-08 14:05:04,881 INFO L471 AbstractCegarLoop]: Abstraction has has 596 places, 913 transitions, 26832 flow [2025-02-08 14:05:04,881 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) [2025-02-08 14:05:04,881 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:05:04,882 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:05:04,888 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2025-02-08 14:05:05,086 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40,10 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 14:05:05,086 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)] === [2025-02-08 14:05:05,087 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:05:05,087 INFO L85 PathProgramCache]: Analyzing trace with hash -1851285332, now seen corresponding path program 11 times [2025-02-08 14:05:05,087 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:05:05,087 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1694190103] [2025-02-08 14:05:05,087 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-02-08 14:05:05,087 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:05:05,093 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 45 statements into 11 equivalence classes. [2025-02-08 14:05:05,100 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) and asserted 45 of 45 statements. [2025-02-08 14:05:05,100 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) [2025-02-08 14:05:05,100 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:05:05,299 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2025-02-08 14:05:05,299 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:05:05,299 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1694190103] [2025-02-08 14:05:05,299 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1694190103] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:05:05,299 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:05:05,299 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2025-02-08 14:05:05,299 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1912045764] [2025-02-08 14:05:05,299 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:05:05,300 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2025-02-08 14:05:05,300 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:05:05,300 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2025-02-08 14:05:05,300 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2025-02-08 14:05:05,319 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 47 [2025-02-08 14:05:05,320 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 596 places, 913 transitions, 26832 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) [2025-02-08 14:05:05,320 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:05:05,320 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 47 [2025-02-08 14:05:05,320 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:05:08,715 INFO L124 PetriNetUnfolderBase]: 3281/7396 cut-off events. [2025-02-08 14:05:08,716 INFO L125 PetriNetUnfolderBase]: For 633984/634049 co-relation queries the response was YES. [2025-02-08 14:05:08,834 INFO L83 FinitePrefix]: Finished finitePrefix Result has 83671 conditions, 7396 events. 3281/7396 cut-off events. For 633984/634049 co-relation queries the response was YES. Maximal size of possible extension queue 366. Compared 63577 event pairs, 976 based on Foata normal form. 32/7343 useless extension candidates. Maximal degree in co-relation 83305. Up to 5414 conditions per place. [2025-02-08 14:05:08,869 INFO L140 encePairwiseOnDemand]: 34/47 looper letters, 884 selfloop transitions, 116 changer transitions 0/1022 dead transitions. [2025-02-08 14:05:08,869 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 608 places, 1022 transitions, 31009 flow [2025-02-08 14:05:08,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-02-08 14:05:08,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2025-02-08 14:05:08,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 306 transitions. [2025-02-08 14:05:08,870 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5008183306055647 [2025-02-08 14:05:08,870 INFO L175 Difference]: Start difference. First operand has 596 places, 913 transitions, 26832 flow. Second operand 13 states and 306 transitions. [2025-02-08 14:05:08,870 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 608 places, 1022 transitions, 31009 flow [2025-02-08 14:05:12,498 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 603 places, 1022 transitions, 30514 flow, removed 173 selfloop flow, removed 5 redundant places. [2025-02-08 14:05:12,513 INFO L231 Difference]: Finished difference. Result has 610 places, 934 transitions, 27542 flow [2025-02-08 14:05:12,513 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=26368, PETRI_DIFFERENCE_MINUEND_PLACES=591, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=913, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=97, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=804, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=27542, PETRI_PLACES=610, PETRI_TRANSITIONS=934} [2025-02-08 14:05:12,515 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, 563 predicate places. [2025-02-08 14:05:12,515 INFO L471 AbstractCegarLoop]: Abstraction has has 610 places, 934 transitions, 27542 flow [2025-02-08 14:05:12,515 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) [2025-02-08 14:05:12,515 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:05:12,515 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:05:12,515 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2025-02-08 14:05:12,516 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)] === [2025-02-08 14:05:12,516 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:05:12,516 INFO L85 PathProgramCache]: Analyzing trace with hash -388637762, now seen corresponding path program 12 times [2025-02-08 14:05:12,516 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:05:12,516 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1219719535] [2025-02-08 14:05:12,516 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-02-08 14:05:12,517 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:05:12,523 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 45 statements into 11 equivalence classes. [2025-02-08 14:05:12,524 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) and asserted 14 of 45 statements. [2025-02-08 14:05:12,524 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2025-02-08 14:05:12,524 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:05:12,600 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 156 trivial. 0 not checked. [2025-02-08 14:05:12,600 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:05:12,600 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1219719535] [2025-02-08 14:05:12,600 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1219719535] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:05:12,600 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:05:12,600 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2025-02-08 14:05:12,600 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1630426425] [2025-02-08 14:05:12,600 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:05:12,601 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-02-08 14:05:12,601 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:05:12,601 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-02-08 14:05:12,601 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2025-02-08 14:05:12,618 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 47 [2025-02-08 14:05:12,618 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 610 places, 934 transitions, 27542 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) [2025-02-08 14:05:12,619 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:05:12,619 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 47 [2025-02-08 14:05:12,619 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:05:16,675 INFO L124 PetriNetUnfolderBase]: 3806/8214 cut-off events. [2025-02-08 14:05:16,676 INFO L125 PetriNetUnfolderBase]: For 742204/742318 co-relation queries the response was YES. [2025-02-08 14:05:16,795 INFO L83 FinitePrefix]: Finished finitePrefix Result has 94134 conditions, 8214 events. 3806/8214 cut-off events. For 742204/742318 co-relation queries the response was YES. Maximal size of possible extension queue 377. Compared 68124 event pairs, 1466 based on Foata normal form. 39/8189 useless extension candidates. Maximal degree in co-relation 93762. Up to 3586 conditions per place. [2025-02-08 14:05:16,835 INFO L140 encePairwiseOnDemand]: 33/47 looper letters, 879 selfloop transitions, 185 changer transitions 0/1079 dead transitions. [2025-02-08 14:05:16,835 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 626 places, 1079 transitions, 33148 flow [2025-02-08 14:05:16,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2025-02-08 14:05:16,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2025-02-08 14:05:16,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 397 transitions. [2025-02-08 14:05:16,836 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.49687108886107634 [2025-02-08 14:05:16,836 INFO L175 Difference]: Start difference. First operand has 610 places, 934 transitions, 27542 flow. Second operand 17 states and 397 transitions. [2025-02-08 14:05:16,836 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 626 places, 1079 transitions, 33148 flow [2025-02-08 14:05:20,859 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 624 places, 1079 transitions, 32674 flow, removed 184 selfloop flow, removed 2 redundant places. [2025-02-08 14:05:20,877 INFO L231 Difference]: Finished difference. Result has 635 places, 968 transitions, 29201 flow [2025-02-08 14:05:20,878 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=27128, PETRI_DIFFERENCE_MINUEND_PLACES=608, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=934, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=153, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=768, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=29201, PETRI_PLACES=635, PETRI_TRANSITIONS=968} [2025-02-08 14:05:20,879 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, 588 predicate places. [2025-02-08 14:05:20,879 INFO L471 AbstractCegarLoop]: Abstraction has has 635 places, 968 transitions, 29201 flow [2025-02-08 14:05:20,879 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) [2025-02-08 14:05:20,879 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:05:20,879 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:05:20,879 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2025-02-08 14:05:20,879 INFO L396 AbstractCegarLoop]: === Iteration 44 === Targeting t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2025-02-08 14:05:20,880 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:05:20,880 INFO L85 PathProgramCache]: Analyzing trace with hash 1772507457, now seen corresponding path program 6 times [2025-02-08 14:05:20,880 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:05:20,880 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2064609628] [2025-02-08 14:05:20,880 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-02-08 14:05:20,881 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:05:20,890 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 45 statements into 11 equivalence classes. [2025-02-08 14:05:20,892 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) and asserted 14 of 45 statements. [2025-02-08 14:05:20,892 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2025-02-08 14:05:20,892 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:05:20,983 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 156 trivial. 0 not checked. [2025-02-08 14:05:20,984 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:05:20,984 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2064609628] [2025-02-08 14:05:20,984 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2064609628] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:05:20,984 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:05:20,984 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2025-02-08 14:05:20,984 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1545669360] [2025-02-08 14:05:20,984 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:05:20,984 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-02-08 14:05:20,985 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:05:20,985 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-02-08 14:05:20,985 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2025-02-08 14:05:21,001 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 47 [2025-02-08 14:05:21,001 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 635 places, 968 transitions, 29201 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) [2025-02-08 14:05:21,001 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:05:21,001 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 47 [2025-02-08 14:05:21,001 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:05:25,238 INFO L124 PetriNetUnfolderBase]: 3938/8637 cut-off events. [2025-02-08 14:05:25,238 INFO L125 PetriNetUnfolderBase]: For 806197/806307 co-relation queries the response was YES. [2025-02-08 14:05:25,397 INFO L83 FinitePrefix]: Finished finitePrefix Result has 99413 conditions, 8637 events. 3938/8637 cut-off events. For 806197/806307 co-relation queries the response was YES. Maximal size of possible extension queue 389. Compared 73377 event pairs, 1366 based on Foata normal form. 45/8610 useless extension candidates. Maximal degree in co-relation 99030. Up to 3108 conditions per place. [2025-02-08 14:05:25,440 INFO L140 encePairwiseOnDemand]: 32/47 looper letters, 898 selfloop transitions, 297 changer transitions 0/1213 dead transitions. [2025-02-08 14:05:25,440 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 651 places, 1213 transitions, 37668 flow [2025-02-08 14:05:25,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2025-02-08 14:05:25,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2025-02-08 14:05:25,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 412 transitions. [2025-02-08 14:05:25,441 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5156445556946183 [2025-02-08 14:05:25,441 INFO L175 Difference]: Start difference. First operand has 635 places, 968 transitions, 29201 flow. Second operand 17 states and 412 transitions. [2025-02-08 14:05:25,441 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 651 places, 1213 transitions, 37668 flow [2025-02-08 14:05:30,050 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 651 places, 1213 transitions, 37066 flow, removed 301 selfloop flow, removed 0 redundant places. [2025-02-08 14:05:30,069 INFO L231 Difference]: Finished difference. Result has 663 places, 1033 transitions, 31479 flow [2025-02-08 14:05:30,069 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=28765, PETRI_DIFFERENCE_MINUEND_PLACES=635, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=968, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=234, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=719, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=31479, PETRI_PLACES=663, PETRI_TRANSITIONS=1033} [2025-02-08 14:05:30,070 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, 616 predicate places. [2025-02-08 14:05:30,070 INFO L471 AbstractCegarLoop]: Abstraction has has 663 places, 1033 transitions, 31479 flow [2025-02-08 14:05:30,070 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) [2025-02-08 14:05:30,070 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:05:30,070 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:05:30,070 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2025-02-08 14:05:30,070 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)] === [2025-02-08 14:05:30,071 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:05:30,071 INFO L85 PathProgramCache]: Analyzing trace with hash 1777264625, now seen corresponding path program 7 times [2025-02-08 14:05:30,071 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:05:30,071 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [684200958] [2025-02-08 14:05:30,071 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2025-02-08 14:05:30,072 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:05:30,078 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 45 statements into 1 equivalence classes. [2025-02-08 14:05:30,081 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 45 of 45 statements. [2025-02-08 14:05:30,081 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:05:30,081 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:05:30,242 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2025-02-08 14:05:30,242 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:05:30,242 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [684200958] [2025-02-08 14:05:30,242 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [684200958] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:05:30,242 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:05:30,243 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2025-02-08 14:05:30,243 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1599214064] [2025-02-08 14:05:30,243 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:05:30,243 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2025-02-08 14:05:30,243 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:05:30,243 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2025-02-08 14:05:30,243 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2025-02-08 14:05:30,259 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 47 [2025-02-08 14:05:30,259 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 663 places, 1033 transitions, 31479 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) [2025-02-08 14:05:30,259 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:05:30,259 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 47 [2025-02-08 14:05:30,259 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand