./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 3061b6dc Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/goblint-regression/06-symbeq_05-funloop_hard2.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 9e83a031749850377e0f1ecd2c361048b8f87f697f146600048034d31c93bd9a --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-19 13:57:34,377 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-19 13:57:34,464 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-19 13:57:34,469 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-19 13:57:34,471 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-19 13:57:34,502 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-19 13:57:34,502 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-19 13:57:34,503 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-19 13:57:34,503 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-19 13:57:34,504 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-19 13:57:34,504 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-19 13:57:34,504 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-19 13:57:34,505 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-19 13:57:34,505 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-19 13:57:34,506 INFO L153 SettingsManager]: * Use SBE=true [2024-11-19 13:57:34,506 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-19 13:57:34,506 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-19 13:57:34,507 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-19 13:57:34,507 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-19 13:57:34,510 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-19 13:57:34,510 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-19 13:57:34,511 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-19 13:57:34,511 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-19 13:57:34,512 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-19 13:57:34,512 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-19 13:57:34,514 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-19 13:57:34,515 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-19 13:57:34,515 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-19 13:57:34,515 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-19 13:57:34,515 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-19 13:57:34,516 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-19 13:57:34,516 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-19 13:57:34,517 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-19 13:57:34,517 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-19 13:57:34,517 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 13:57:34,518 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-19 13:57:34,518 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-19 13:57:34,518 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-19 13:57:34,519 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-19 13:57:34,519 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-19 13:57:34,519 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-19 13:57:34,520 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-19 13:57:34,520 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-19 13:57:34,520 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-19 13:57:34,520 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9e83a031749850377e0f1ecd2c361048b8f87f697f146600048034d31c93bd9a [2024-11-19 13:57:34,782 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-19 13:57:34,807 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-19 13:57:34,809 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-19 13:57:34,810 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-19 13:57:34,811 INFO L274 PluginConnector]: CDTParser initialized [2024-11-19 13:57:34,812 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/06-symbeq_05-funloop_hard2.i [2024-11-19 13:57:36,274 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-19 13:57:36,523 INFO L384 CDTParser]: Found 1 translation units. [2024-11-19 13:57:36,523 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/06-symbeq_05-funloop_hard2.i [2024-11-19 13:57:36,546 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/72c9d5dc4/ffd662f53d654b48b7d388171125e96d/FLAG0e17034f2 [2024-11-19 13:57:36,565 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/72c9d5dc4/ffd662f53d654b48b7d388171125e96d [2024-11-19 13:57:36,567 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-19 13:57:36,568 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-19 13:57:36,571 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-19 13:57:36,571 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-19 13:57:36,576 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-19 13:57:36,576 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 01:57:36" (1/1) ... [2024-11-19 13:57:36,577 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4e226604 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:57:36, skipping insertion in model container [2024-11-19 13:57:36,577 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 01:57:36" (1/1) ... [2024-11-19 13:57:36,627 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-19 13:57:37,090 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 13:57:37,143 INFO L200 MainTranslator]: Completed pre-run [2024-11-19 13:57:37,198 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 13:57:37,263 INFO L204 MainTranslator]: Completed translation [2024-11-19 13:57:37,264 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:57:37 WrapperNode [2024-11-19 13:57:37,264 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-19 13:57:37,265 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-19 13:57:37,265 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-19 13:57:37,266 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-19 13:57:37,273 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:57:37" (1/1) ... [2024-11-19 13:57:37,302 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:57:37" (1/1) ... [2024-11-19 13:57:37,341 INFO L138 Inliner]: procedures = 263, calls = 74, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 155 [2024-11-19 13:57:37,345 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-19 13:57:37,346 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-19 13:57:37,347 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-19 13:57:37,347 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-19 13:57:37,359 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:57:37" (1/1) ... [2024-11-19 13:57:37,359 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:57:37" (1/1) ... [2024-11-19 13:57:37,367 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:57:37" (1/1) ... [2024-11-19 13:57:37,388 INFO L175 MemorySlicer]: Split 66 memory accesses to 1 slices as follows [66]. 100 percent of accesses are in the largest equivalence class. The 60 initializations are split as follows [60]. The 3 writes are split as follows [3]. [2024-11-19 13:57:37,388 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:57:37" (1/1) ... [2024-11-19 13:57:37,388 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:57:37" (1/1) ... [2024-11-19 13:57:37,403 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:57:37" (1/1) ... [2024-11-19 13:57:37,406 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:57:37" (1/1) ... [2024-11-19 13:57:37,413 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:57:37" (1/1) ... [2024-11-19 13:57:37,414 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:57:37" (1/1) ... [2024-11-19 13:57:37,420 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-19 13:57:37,422 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-19 13:57:37,423 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-19 13:57:37,424 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-19 13:57:37,425 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:57:37" (1/1) ... [2024-11-19 13:57:37,430 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 13:57:37,445 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 13:57:37,466 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-19 13:57:37,472 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-19 13:57:37,526 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-19 13:57:37,527 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-19 13:57:37,527 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-19 13:57:37,527 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-19 13:57:37,527 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-19 13:57:37,527 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-11-19 13:57:37,527 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-11-19 13:57:37,528 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-19 13:57:37,528 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-19 13:57:37,529 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-19 13:57:37,547 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-19 13:57:37,706 INFO L238 CfgBuilder]: Building ICFG [2024-11-19 13:57:37,713 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-19 13:57:38,050 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-19 13:57:38,051 INFO L287 CfgBuilder]: Performing block encoding [2024-11-19 13:57:38,388 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-19 13:57:38,389 INFO L316 CfgBuilder]: Removed 3 assume(true) statements. [2024-11-19 13:57:38,389 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 01:57:38 BoogieIcfgContainer [2024-11-19 13:57:38,389 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-19 13:57:38,391 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-19 13:57:38,392 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-19 13:57:38,396 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-19 13:57:38,396 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 01:57:36" (1/3) ... [2024-11-19 13:57:38,397 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a2668d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 01:57:38, skipping insertion in model container [2024-11-19 13:57:38,397 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:57:37" (2/3) ... [2024-11-19 13:57:38,398 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a2668d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 01:57:38, skipping insertion in model container [2024-11-19 13:57:38,399 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 01:57:38" (3/3) ... [2024-11-19 13:57:38,400 INFO L112 eAbstractionObserver]: Analyzing ICFG 06-symbeq_05-funloop_hard2.i [2024-11-19 13:57:38,418 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-19 13:57:38,419 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 12 error locations. [2024-11-19 13:57:38,419 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-19 13:57:38,467 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-19 13:57:38,509 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 48 places, 47 transitions, 98 flow [2024-11-19 13:57:38,537 INFO L124 PetriNetUnfolderBase]: 3/46 cut-off events. [2024-11-19 13:57:38,537 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-19 13:57:38,543 INFO L83 FinitePrefix]: Finished finitePrefix Result has 50 conditions, 46 events. 3/46 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 111 event pairs, 0 based on Foata normal form. 0/31 useless extension candidates. Maximal degree in co-relation 38. Up to 2 conditions per place. [2024-11-19 13:57:38,544 INFO L82 GeneralOperation]: Start removeDead. Operand has 48 places, 47 transitions, 98 flow [2024-11-19 13:57:38,547 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 47 places, 46 transitions, 95 flow [2024-11-19 13:57:38,560 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-19 13:57:38,569 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;@5c59bf74, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-19 13:57:38,570 INFO L334 AbstractCegarLoop]: Starting to check reachability of 17 error locations. [2024-11-19 13:57:38,575 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-19 13:57:38,575 INFO L124 PetriNetUnfolderBase]: 0/3 cut-off events. [2024-11-19 13:57:38,575 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-19 13:57:38,576 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 13:57:38,577 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2024-11-19 13:57:38,578 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2024-11-19 13:57:38,583 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 13:57:38,583 INFO L85 PathProgramCache]: Analyzing trace with hash 406437, now seen corresponding path program 1 times [2024-11-19 13:57:38,597 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 13:57:38,597 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [171043578] [2024-11-19 13:57:38,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 13:57:38,598 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 13:57:38,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 13:57:39,001 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 13:57:39,001 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 13:57:39,002 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [171043578] [2024-11-19 13:57:39,002 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [171043578] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 13:57:39,002 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 13:57:39,003 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 13:57:39,004 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1792600675] [2024-11-19 13:57:39,005 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 13:57:39,013 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 13:57:39,020 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 13:57:39,047 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 13:57:39,048 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-19 13:57:39,064 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 47 [2024-11-19 13:57:39,068 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 46 transitions, 95 flow. Second operand has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 13:57:39,068 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 13:57:39,069 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 47 [2024-11-19 13:57:39,070 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 13:57:39,288 INFO L124 PetriNetUnfolderBase]: 128/386 cut-off events. [2024-11-19 13:57:39,290 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-19 13:57:39,293 INFO L83 FinitePrefix]: Finished finitePrefix Result has 652 conditions, 386 events. 128/386 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 2038 event pairs, 104 based on Foata normal form. 1/317 useless extension candidates. Maximal degree in co-relation 627. Up to 260 conditions per place. [2024-11-19 13:57:39,297 INFO L140 encePairwiseOnDemand]: 41/47 looper letters, 29 selfloop transitions, 3 changer transitions 0/48 dead transitions. [2024-11-19 13:57:39,298 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 48 transitions, 163 flow [2024-11-19 13:57:39,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 13:57:39,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-19 13:57:39,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 103 transitions. [2024-11-19 13:57:39,311 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5478723404255319 [2024-11-19 13:57:39,313 INFO L175 Difference]: Start difference. First operand has 47 places, 46 transitions, 95 flow. Second operand 4 states and 103 transitions. [2024-11-19 13:57:39,314 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 48 transitions, 163 flow [2024-11-19 13:57:39,316 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 48 transitions, 162 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-19 13:57:39,321 INFO L231 Difference]: Finished difference. Result has 51 places, 48 transitions, 118 flow [2024-11-19 13:57:39,323 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=94, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=118, PETRI_PLACES=51, PETRI_TRANSITIONS=48} [2024-11-19 13:57:39,327 INFO L277 CegarLoopForPetriNet]: 47 programPoint places, 4 predicate places. [2024-11-19 13:57:39,327 INFO L471 AbstractCegarLoop]: Abstraction has has 51 places, 48 transitions, 118 flow [2024-11-19 13:57:39,328 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 13:57:39,328 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 13:57:39,328 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1] [2024-11-19 13:57:39,328 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-19 13:57:39,329 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2024-11-19 13:57:39,329 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 13:57:39,329 INFO L85 PathProgramCache]: Analyzing trace with hash -776355770, now seen corresponding path program 1 times [2024-11-19 13:57:39,329 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 13:57:39,330 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1000892561] [2024-11-19 13:57:39,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 13:57:39,330 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 13:57:39,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 13:57:39,520 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 13:57:39,521 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 13:57:39,521 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1000892561] [2024-11-19 13:57:39,521 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1000892561] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 13:57:39,522 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1264666195] [2024-11-19 13:57:39,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 13:57:39,522 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 13:57:39,522 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 13:57:39,524 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 13:57:39,526 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-19 13:57:39,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 13:57:39,607 INFO L255 TraceCheckSpWp]: Trace formula consists of 154 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-19 13:57:39,611 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 13:57:39,657 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 13:57:39,657 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 13:57:39,658 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1264666195] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 13:57:39,658 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 13:57:39,658 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2024-11-19 13:57:39,659 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [842541145] [2024-11-19 13:57:39,659 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 13:57:39,659 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 13:57:39,660 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 13:57:39,661 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 13:57:39,662 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-19 13:57:39,673 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 47 [2024-11-19 13:57:39,673 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 48 transitions, 118 flow. Second operand has 6 states, 6 states have (on average 17.833333333333332) internal successors, (107), 6 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 13:57:39,673 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 13:57:39,673 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 47 [2024-11-19 13:57:39,673 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 13:57:39,825 INFO L124 PetriNetUnfolderBase]: 128/385 cut-off events. [2024-11-19 13:57:39,826 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-11-19 13:57:39,827 INFO L83 FinitePrefix]: Finished finitePrefix Result has 661 conditions, 385 events. 128/385 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 2026 event pairs, 104 based on Foata normal form. 1/316 useless extension candidates. Maximal degree in co-relation 644. Up to 255 conditions per place. [2024-11-19 13:57:39,829 INFO L140 encePairwiseOnDemand]: 42/47 looper letters, 25 selfloop transitions, 6 changer transitions 0/47 dead transitions. [2024-11-19 13:57:39,829 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 47 transitions, 176 flow [2024-11-19 13:57:39,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 13:57:39,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-19 13:57:39,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 134 transitions. [2024-11-19 13:57:39,831 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.475177304964539 [2024-11-19 13:57:39,831 INFO L175 Difference]: Start difference. First operand has 51 places, 48 transitions, 118 flow. Second operand 6 states and 134 transitions. [2024-11-19 13:57:39,832 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 47 transitions, 176 flow [2024-11-19 13:57:39,832 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 47 transitions, 174 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-19 13:57:39,834 INFO L231 Difference]: Finished difference. Result has 54 places, 47 transitions, 124 flow [2024-11-19 13:57:39,834 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=112, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=124, PETRI_PLACES=54, PETRI_TRANSITIONS=47} [2024-11-19 13:57:39,835 INFO L277 CegarLoopForPetriNet]: 47 programPoint places, 7 predicate places. [2024-11-19 13:57:39,835 INFO L471 AbstractCegarLoop]: Abstraction has has 54 places, 47 transitions, 124 flow [2024-11-19 13:57:39,835 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 17.833333333333332) internal successors, (107), 6 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 13:57:39,835 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 13:57:39,836 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1] [2024-11-19 13:57:39,854 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-19 13:57:40,036 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 13:57:40,037 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2024-11-19 13:57:40,037 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 13:57:40,037 INFO L85 PathProgramCache]: Analyzing trace with hash 1702775290, now seen corresponding path program 1 times [2024-11-19 13:57:40,037 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 13:57:40,038 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [324572910] [2024-11-19 13:57:40,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 13:57:40,038 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 13:57:40,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 13:57:40,087 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-19 13:57:40,087 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 13:57:40,088 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [324572910] [2024-11-19 13:57:40,088 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [324572910] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 13:57:40,088 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 13:57:40,088 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 13:57:40,088 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1960290882] [2024-11-19 13:57:40,088 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 13:57:40,089 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 13:57:40,089 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 13:57:40,089 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 13:57:40,090 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 13:57:40,094 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 47 [2024-11-19 13:57:40,095 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 47 transitions, 124 flow. Second operand has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 13:57:40,095 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 13:57:40,095 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 47 [2024-11-19 13:57:40,095 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 13:57:40,188 INFO L124 PetriNetUnfolderBase]: 128/384 cut-off events. [2024-11-19 13:57:40,189 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2024-11-19 13:57:40,191 INFO L83 FinitePrefix]: Finished finitePrefix Result has 663 conditions, 384 events. 128/384 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 2023 event pairs, 104 based on Foata normal form. 1/316 useless extension candidates. Maximal degree in co-relation 640. Up to 258 conditions per place. [2024-11-19 13:57:40,193 INFO L140 encePairwiseOnDemand]: 44/47 looper letters, 26 selfloop transitions, 4 changer transitions 0/46 dead transitions. [2024-11-19 13:57:40,193 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 46 transitions, 180 flow [2024-11-19 13:57:40,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 13:57:40,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 13:57:40,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 80 transitions. [2024-11-19 13:57:40,197 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5673758865248227 [2024-11-19 13:57:40,197 INFO L175 Difference]: Start difference. First operand has 54 places, 47 transitions, 124 flow. Second operand 3 states and 80 transitions. [2024-11-19 13:57:40,197 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 46 transitions, 180 flow [2024-11-19 13:57:40,198 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 46 transitions, 158 flow, removed 3 selfloop flow, removed 6 redundant places. [2024-11-19 13:57:40,199 INFO L231 Difference]: Finished difference. Result has 49 places, 46 transitions, 106 flow [2024-11-19 13:57:40,199 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=98, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=106, PETRI_PLACES=49, PETRI_TRANSITIONS=46} [2024-11-19 13:57:40,202 INFO L277 CegarLoopForPetriNet]: 47 programPoint places, 2 predicate places. [2024-11-19 13:57:40,202 INFO L471 AbstractCegarLoop]: Abstraction has has 49 places, 46 transitions, 106 flow [2024-11-19 13:57:40,203 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 13:57:40,203 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 13:57:40,203 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 13:57:40,203 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-19 13:57:40,204 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2024-11-19 13:57:40,204 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 13:57:40,204 INFO L85 PathProgramCache]: Analyzing trace with hash -92986018, now seen corresponding path program 1 times [2024-11-19 13:57:40,204 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 13:57:40,205 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2112979293] [2024-11-19 13:57:40,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 13:57:40,206 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 13:57:40,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 13:57:40,293 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 13:57:40,294 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 13:57:40,294 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2112979293] [2024-11-19 13:57:40,294 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2112979293] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 13:57:40,295 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1179492181] [2024-11-19 13:57:40,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 13:57:40,295 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 13:57:40,295 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 13:57:40,297 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 13:57:40,299 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-19 13:57:40,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 13:57:40,387 INFO L255 TraceCheckSpWp]: Trace formula consists of 189 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-19 13:57:40,388 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 13:57:40,413 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 13:57:40,414 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 13:57:40,449 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 13:57:40,450 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1179492181] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 13:57:40,450 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 13:57:40,450 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 9 [2024-11-19 13:57:40,451 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1206708460] [2024-11-19 13:57:40,451 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 13:57:40,451 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-19 13:57:40,452 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 13:57:40,452 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-19 13:57:40,452 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-19 13:57:40,466 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 47 [2024-11-19 13:57:40,466 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 46 transitions, 106 flow. Second operand has 10 states, 10 states have (on average 18.6) internal successors, (186), 10 states have internal predecessors, (186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 13:57:40,467 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 13:57:40,467 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 47 [2024-11-19 13:57:40,467 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 13:57:40,597 INFO L124 PetriNetUnfolderBase]: 128/388 cut-off events. [2024-11-19 13:57:40,597 INFO L125 PetriNetUnfolderBase]: For 9/9 co-relation queries the response was YES. [2024-11-19 13:57:40,598 INFO L83 FinitePrefix]: Finished finitePrefix Result has 666 conditions, 388 events. 128/388 cut-off events. For 9/9 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 2020 event pairs, 104 based on Foata normal form. 2/322 useless extension candidates. Maximal degree in co-relation 633. Up to 256 conditions per place. [2024-11-19 13:57:40,600 INFO L140 encePairwiseOnDemand]: 43/47 looper letters, 26 selfloop transitions, 7 changer transitions 0/49 dead transitions. [2024-11-19 13:57:40,600 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 49 transitions, 187 flow [2024-11-19 13:57:40,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-19 13:57:40,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-19 13:57:40,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 154 transitions. [2024-11-19 13:57:40,602 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.46808510638297873 [2024-11-19 13:57:40,602 INFO L175 Difference]: Start difference. First operand has 49 places, 46 transitions, 106 flow. Second operand 7 states and 154 transitions. [2024-11-19 13:57:40,603 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 49 transitions, 187 flow [2024-11-19 13:57:40,603 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 49 transitions, 173 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-19 13:57:40,604 INFO L231 Difference]: Finished difference. Result has 55 places, 49 transitions, 132 flow [2024-11-19 13:57:40,604 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=98, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=132, PETRI_PLACES=55, PETRI_TRANSITIONS=49} [2024-11-19 13:57:40,605 INFO L277 CegarLoopForPetriNet]: 47 programPoint places, 8 predicate places. [2024-11-19 13:57:40,606 INFO L471 AbstractCegarLoop]: Abstraction has has 55 places, 49 transitions, 132 flow [2024-11-19 13:57:40,606 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 18.6) internal successors, (186), 10 states have internal predecessors, (186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 13:57:40,606 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 13:57:40,606 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 13:57:40,624 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-19 13:57:40,807 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2024-11-19 13:57:40,807 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2024-11-19 13:57:40,808 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 13:57:40,808 INFO L85 PathProgramCache]: Analyzing trace with hash 1115452862, now seen corresponding path program 2 times [2024-11-19 13:57:40,808 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 13:57:40,808 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1556255480] [2024-11-19 13:57:40,808 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 13:57:40,809 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 13:57:40,837 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-19 13:57:40,838 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 13:57:40,967 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-19 13:57:40,967 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 13:57:40,968 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1556255480] [2024-11-19 13:57:40,968 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1556255480] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 13:57:40,968 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 13:57:40,968 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-19 13:57:40,968 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1765530741] [2024-11-19 13:57:40,969 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 13:57:40,969 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 13:57:40,969 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 13:57:40,970 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 13:57:40,970 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-19 13:57:40,976 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 47 [2024-11-19 13:57:40,977 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 49 transitions, 132 flow. Second operand has 6 states, 6 states have (on average 18.666666666666668) internal successors, (112), 6 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 13:57:40,977 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 13:57:40,977 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 47 [2024-11-19 13:57:40,977 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 13:57:41,269 INFO L124 PetriNetUnfolderBase]: 235/591 cut-off events. [2024-11-19 13:57:41,269 INFO L125 PetriNetUnfolderBase]: For 15/15 co-relation queries the response was YES. [2024-11-19 13:57:41,270 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1096 conditions, 591 events. 235/591 cut-off events. For 15/15 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 3044 event pairs, 26 based on Foata normal form. 27/544 useless extension candidates. Maximal degree in co-relation 1058. Up to 341 conditions per place. [2024-11-19 13:57:41,275 INFO L140 encePairwiseOnDemand]: 37/47 looper letters, 92 selfloop transitions, 14 changer transitions 0/120 dead transitions. [2024-11-19 13:57:41,275 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 120 transitions, 486 flow [2024-11-19 13:57:41,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-19 13:57:41,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-19 13:57:41,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 244 transitions. [2024-11-19 13:57:41,282 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.648936170212766 [2024-11-19 13:57:41,282 INFO L175 Difference]: Start difference. First operand has 55 places, 49 transitions, 132 flow. Second operand 8 states and 244 transitions. [2024-11-19 13:57:41,282 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 120 transitions, 486 flow [2024-11-19 13:57:41,283 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 120 transitions, 482 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-19 13:57:41,285 INFO L231 Difference]: Finished difference. Result has 66 places, 63 transitions, 234 flow [2024-11-19 13:57:41,286 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=128, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=234, PETRI_PLACES=66, PETRI_TRANSITIONS=63} [2024-11-19 13:57:41,287 INFO L277 CegarLoopForPetriNet]: 47 programPoint places, 19 predicate places. [2024-11-19 13:57:41,287 INFO L471 AbstractCegarLoop]: Abstraction has has 66 places, 63 transitions, 234 flow [2024-11-19 13:57:41,288 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 18.666666666666668) internal successors, (112), 6 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 13:57:41,288 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 13:57:41,288 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 13:57:41,289 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-19 13:57:41,290 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2024-11-19 13:57:41,290 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 13:57:41,290 INFO L85 PathProgramCache]: Analyzing trace with hash 1082013421, now seen corresponding path program 1 times [2024-11-19 13:57:41,290 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 13:57:41,291 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1602101865] [2024-11-19 13:57:41,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 13:57:41,291 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 13:57:41,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 13:57:41,350 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-19 13:57:41,351 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 13:57:41,351 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1602101865] [2024-11-19 13:57:41,351 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1602101865] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 13:57:41,351 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 13:57:41,352 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 13:57:41,352 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [580915834] [2024-11-19 13:57:41,353 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 13:57:41,353 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 13:57:41,353 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 13:57:41,353 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 13:57:41,354 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 13:57:41,354 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 47 [2024-11-19 13:57:41,354 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 63 transitions, 234 flow. Second operand has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 13:57:41,354 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 13:57:41,354 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 47 [2024-11-19 13:57:41,354 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 13:57:41,495 INFO L124 PetriNetUnfolderBase]: 229/645 cut-off events. [2024-11-19 13:57:41,495 INFO L125 PetriNetUnfolderBase]: For 255/255 co-relation queries the response was YES. [2024-11-19 13:57:41,497 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1414 conditions, 645 events. 229/645 cut-off events. For 255/255 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 3518 event pairs, 54 based on Foata normal form. 0/561 useless extension candidates. Maximal degree in co-relation 1370. Up to 296 conditions per place. [2024-11-19 13:57:41,501 INFO L140 encePairwiseOnDemand]: 44/47 looper letters, 62 selfloop transitions, 2 changer transitions 0/80 dead transitions. [2024-11-19 13:57:41,501 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 80 transitions, 412 flow [2024-11-19 13:57:41,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 13:57:41,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 13:57:41,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 102 transitions. [2024-11-19 13:57:41,502 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.723404255319149 [2024-11-19 13:57:41,503 INFO L175 Difference]: Start difference. First operand has 66 places, 63 transitions, 234 flow. Second operand 3 states and 102 transitions. [2024-11-19 13:57:41,503 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 80 transitions, 412 flow [2024-11-19 13:57:41,505 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 80 transitions, 408 flow, removed 2 selfloop flow, removed 1 redundant places. [2024-11-19 13:57:41,507 INFO L231 Difference]: Finished difference. Result has 67 places, 60 transitions, 220 flow [2024-11-19 13:57:41,507 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=208, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=59, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=57, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=220, PETRI_PLACES=67, PETRI_TRANSITIONS=60} [2024-11-19 13:57:41,508 INFO L277 CegarLoopForPetriNet]: 47 programPoint places, 20 predicate places. [2024-11-19 13:57:41,508 INFO L471 AbstractCegarLoop]: Abstraction has has 67 places, 60 transitions, 220 flow [2024-11-19 13:57:41,509 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 13:57:41,509 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 13:57:41,509 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 13:57:41,509 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-19 13:57:41,509 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2024-11-19 13:57:41,510 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 13:57:41,510 INFO L85 PathProgramCache]: Analyzing trace with hash 1081981441, now seen corresponding path program 1 times [2024-11-19 13:57:41,510 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 13:57:41,510 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2048124396] [2024-11-19 13:57:41,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 13:57:41,511 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 13:57:41,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 13:57:41,685 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 13:57:41,686 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 13:57:41,686 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2048124396] [2024-11-19 13:57:41,686 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2048124396] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 13:57:41,686 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1702067441] [2024-11-19 13:57:41,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 13:57:41,687 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 13:57:41,687 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 13:57:41,689 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 13:57:41,691 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-19 13:57:41,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 13:57:41,778 INFO L255 TraceCheckSpWp]: Trace formula consists of 207 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-19 13:57:41,780 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 13:57:41,815 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 13:57:41,816 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 13:57:41,903 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 13:57:41,904 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1702067441] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 13:57:41,904 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 13:57:41,904 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 17 [2024-11-19 13:57:41,904 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1764561189] [2024-11-19 13:57:41,905 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 13:57:41,905 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-19 13:57:41,905 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 13:57:41,906 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-19 13:57:41,906 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2024-11-19 13:57:41,926 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 47 [2024-11-19 13:57:41,927 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 60 transitions, 220 flow. Second operand has 18 states, 18 states have (on average 18.333333333333332) internal successors, (330), 18 states have internal predecessors, (330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 13:57:41,927 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 13:57:41,927 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 47 [2024-11-19 13:57:41,927 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 13:57:42,171 INFO L124 PetriNetUnfolderBase]: 229/667 cut-off events. [2024-11-19 13:57:42,172 INFO L125 PetriNetUnfolderBase]: For 287/289 co-relation queries the response was YES. [2024-11-19 13:57:42,173 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1524 conditions, 667 events. 229/667 cut-off events. For 287/289 co-relation queries the response was YES. Maximal size of possible extension queue 40. Compared 3610 event pairs, 128 based on Foata normal form. 4/602 useless extension candidates. Maximal degree in co-relation 1443. Up to 456 conditions per place. [2024-11-19 13:57:42,176 INFO L140 encePairwiseOnDemand]: 43/47 looper letters, 37 selfloop transitions, 15 changer transitions 0/68 dead transitions. [2024-11-19 13:57:42,176 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 81 places, 68 transitions, 372 flow [2024-11-19 13:57:42,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-19 13:57:42,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-11-19 13:57:42,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 300 transitions. [2024-11-19 13:57:42,178 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.425531914893617 [2024-11-19 13:57:42,178 INFO L175 Difference]: Start difference. First operand has 67 places, 60 transitions, 220 flow. Second operand 15 states and 300 transitions. [2024-11-19 13:57:42,178 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 81 places, 68 transitions, 372 flow [2024-11-19 13:57:42,180 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 80 places, 68 transitions, 370 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-19 13:57:42,182 INFO L231 Difference]: Finished difference. Result has 84 places, 68 transitions, 315 flow [2024-11-19 13:57:42,182 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=218, PETRI_DIFFERENCE_MINUEND_PLACES=66, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=60, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=52, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=315, PETRI_PLACES=84, PETRI_TRANSITIONS=68} [2024-11-19 13:57:42,183 INFO L277 CegarLoopForPetriNet]: 47 programPoint places, 37 predicate places. [2024-11-19 13:57:42,183 INFO L471 AbstractCegarLoop]: Abstraction has has 84 places, 68 transitions, 315 flow [2024-11-19 13:57:42,183 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 18.333333333333332) internal successors, (330), 18 states have internal predecessors, (330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 13:57:42,183 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 13:57:42,183 INFO L204 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 13:57:42,201 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-19 13:57:42,387 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 13:57:42,388 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2024-11-19 13:57:42,388 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 13:57:42,389 INFO L85 PathProgramCache]: Analyzing trace with hash -925826367, now seen corresponding path program 2 times [2024-11-19 13:57:42,389 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 13:57:42,389 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [570003551] [2024-11-19 13:57:42,389 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 13:57:42,389 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 13:57:42,407 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-19 13:57:42,407 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 13:57:42,516 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-19 13:57:42,516 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 13:57:42,516 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [570003551] [2024-11-19 13:57:42,516 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [570003551] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 13:57:42,517 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 13:57:42,517 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-19 13:57:42,517 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1302210203] [2024-11-19 13:57:42,517 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 13:57:42,517 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 13:57:42,518 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 13:57:42,518 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 13:57:42,518 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-19 13:57:42,524 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 47 [2024-11-19 13:57:42,524 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 84 places, 68 transitions, 315 flow. Second operand has 6 states, 6 states have (on average 18.666666666666668) internal successors, (112), 6 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 13:57:42,524 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 13:57:42,524 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 47 [2024-11-19 13:57:42,524 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 13:57:42,806 INFO L124 PetriNetUnfolderBase]: 273/738 cut-off events. [2024-11-19 13:57:42,806 INFO L125 PetriNetUnfolderBase]: For 334/334 co-relation queries the response was YES. [2024-11-19 13:57:42,809 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1719 conditions, 738 events. 273/738 cut-off events. For 334/334 co-relation queries the response was YES. Maximal size of possible extension queue 49. Compared 4039 event pairs, 91 based on Foata normal form. 26/696 useless extension candidates. Maximal degree in co-relation 1614. Up to 492 conditions per place. [2024-11-19 13:57:42,813 INFO L140 encePairwiseOnDemand]: 39/47 looper letters, 70 selfloop transitions, 13 changer transitions 0/97 dead transitions. [2024-11-19 13:57:42,813 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 90 places, 97 transitions, 596 flow [2024-11-19 13:57:42,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-19 13:57:42,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-19 13:57:42,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 187 transitions. [2024-11-19 13:57:42,815 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5683890577507599 [2024-11-19 13:57:42,815 INFO L175 Difference]: Start difference. First operand has 84 places, 68 transitions, 315 flow. Second operand 7 states and 187 transitions. [2024-11-19 13:57:42,815 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 90 places, 97 transitions, 596 flow [2024-11-19 13:57:42,818 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 86 places, 97 transitions, 586 flow, removed 1 selfloop flow, removed 4 redundant places. [2024-11-19 13:57:42,820 INFO L231 Difference]: Finished difference. Result has 91 places, 75 transitions, 391 flow [2024-11-19 13:57:42,821 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=305, PETRI_DIFFERENCE_MINUEND_PLACES=80, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=68, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=58, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=391, PETRI_PLACES=91, PETRI_TRANSITIONS=75} [2024-11-19 13:57:42,821 INFO L277 CegarLoopForPetriNet]: 47 programPoint places, 44 predicate places. [2024-11-19 13:57:42,822 INFO L471 AbstractCegarLoop]: Abstraction has has 91 places, 75 transitions, 391 flow [2024-11-19 13:57:42,822 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 18.666666666666668) internal successors, (112), 6 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 13:57:42,822 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 13:57:42,822 INFO L204 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 13:57:42,822 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-19 13:57:42,823 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2024-11-19 13:57:42,823 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 13:57:42,823 INFO L85 PathProgramCache]: Analyzing trace with hash 534099002, now seen corresponding path program 1 times [2024-11-19 13:57:42,823 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 13:57:42,824 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1948870296] [2024-11-19 13:57:42,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 13:57:42,824 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 13:57:42,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 13:57:42,888 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-19 13:57:42,888 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 13:57:42,888 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1948870296] [2024-11-19 13:57:42,889 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1948870296] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 13:57:42,889 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 13:57:42,889 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 13:57:42,889 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1258808783] [2024-11-19 13:57:42,889 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 13:57:42,889 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 13:57:42,890 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 13:57:42,890 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 13:57:42,890 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-19 13:57:42,895 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 47 [2024-11-19 13:57:42,895 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 91 places, 75 transitions, 391 flow. Second operand has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 13:57:42,896 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 13:57:42,896 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 47 [2024-11-19 13:57:42,896 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 13:57:43,048 INFO L124 PetriNetUnfolderBase]: 257/684 cut-off events. [2024-11-19 13:57:43,049 INFO L125 PetriNetUnfolderBase]: For 477/479 co-relation queries the response was YES. [2024-11-19 13:57:43,051 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1810 conditions, 684 events. 257/684 cut-off events. For 477/479 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 3552 event pairs, 66 based on Foata normal form. 22/664 useless extension candidates. Maximal degree in co-relation 1703. Up to 344 conditions per place. [2024-11-19 13:57:43,055 INFO L140 encePairwiseOnDemand]: 42/47 looper letters, 86 selfloop transitions, 4 changer transitions 0/104 dead transitions. [2024-11-19 13:57:43,055 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 94 places, 104 transitions, 675 flow [2024-11-19 13:57:43,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 13:57:43,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-19 13:57:43,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 125 transitions. [2024-11-19 13:57:43,057 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6648936170212766 [2024-11-19 13:57:43,057 INFO L175 Difference]: Start difference. First operand has 91 places, 75 transitions, 391 flow. Second operand 4 states and 125 transitions. [2024-11-19 13:57:43,057 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 94 places, 104 transitions, 675 flow [2024-11-19 13:57:43,060 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 93 places, 104 transitions, 666 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-19 13:57:43,062 INFO L231 Difference]: Finished difference. Result has 95 places, 76 transitions, 403 flow [2024-11-19 13:57:43,062 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=382, PETRI_DIFFERENCE_MINUEND_PLACES=90, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=75, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=71, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=403, PETRI_PLACES=95, PETRI_TRANSITIONS=76} [2024-11-19 13:57:43,063 INFO L277 CegarLoopForPetriNet]: 47 programPoint places, 48 predicate places. [2024-11-19 13:57:43,063 INFO L471 AbstractCegarLoop]: Abstraction has has 95 places, 76 transitions, 403 flow [2024-11-19 13:57:43,063 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 13:57:43,063 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 13:57:43,064 INFO L204 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 13:57:43,064 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-19 13:57:43,064 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2024-11-19 13:57:43,064 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 13:57:43,064 INFO L85 PathProgramCache]: Analyzing trace with hash 1215821249, now seen corresponding path program 1 times [2024-11-19 13:57:43,064 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 13:57:43,065 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2074590849] [2024-11-19 13:57:43,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 13:57:43,065 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 13:57:43,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 13:57:43,144 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-19 13:57:43,144 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 13:57:43,145 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2074590849] [2024-11-19 13:57:43,145 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2074590849] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 13:57:43,145 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 13:57:43,145 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 13:57:43,146 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1986556275] [2024-11-19 13:57:43,147 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 13:57:43,147 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 13:57:43,147 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 13:57:43,148 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 13:57:43,150 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-19 13:57:43,159 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 47 [2024-11-19 13:57:43,159 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 95 places, 76 transitions, 403 flow. Second operand has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 13:57:43,159 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 13:57:43,159 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 47 [2024-11-19 13:57:43,159 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 13:57:43,398 INFO L124 PetriNetUnfolderBase]: 413/1102 cut-off events. [2024-11-19 13:57:43,399 INFO L125 PetriNetUnfolderBase]: For 935/969 co-relation queries the response was YES. [2024-11-19 13:57:43,403 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2877 conditions, 1102 events. 413/1102 cut-off events. For 935/969 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 6209 event pairs, 208 based on Foata normal form. 24/1064 useless extension candidates. Maximal degree in co-relation 2768. Up to 504 conditions per place. [2024-11-19 13:57:43,408 INFO L140 encePairwiseOnDemand]: 41/47 looper letters, 102 selfloop transitions, 4 changer transitions 0/120 dead transitions. [2024-11-19 13:57:43,408 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 98 places, 120 transitions, 802 flow [2024-11-19 13:57:43,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 13:57:43,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-19 13:57:43,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 136 transitions. [2024-11-19 13:57:43,410 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.723404255319149 [2024-11-19 13:57:43,410 INFO L175 Difference]: Start difference. First operand has 95 places, 76 transitions, 403 flow. Second operand 4 states and 136 transitions. [2024-11-19 13:57:43,410 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 98 places, 120 transitions, 802 flow [2024-11-19 13:57:43,413 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 96 places, 120 transitions, 786 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-19 13:57:43,417 INFO L231 Difference]: Finished difference. Result has 98 places, 78 transitions, 424 flow [2024-11-19 13:57:43,417 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=397, PETRI_DIFFERENCE_MINUEND_PLACES=93, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=76, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=72, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=424, PETRI_PLACES=98, PETRI_TRANSITIONS=78} [2024-11-19 13:57:43,418 INFO L277 CegarLoopForPetriNet]: 47 programPoint places, 51 predicate places. [2024-11-19 13:57:43,418 INFO L471 AbstractCegarLoop]: Abstraction has has 98 places, 78 transitions, 424 flow [2024-11-19 13:57:43,418 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 13:57:43,419 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 13:57:43,419 INFO L204 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 13:57:43,419 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-19 13:57:43,419 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2024-11-19 13:57:43,420 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 13:57:43,420 INFO L85 PathProgramCache]: Analyzing trace with hash 1997218629, now seen corresponding path program 1 times [2024-11-19 13:57:43,420 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 13:57:43,420 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [448956698] [2024-11-19 13:57:43,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 13:57:43,420 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 13:57:43,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 13:57:43,743 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 13:57:43,744 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 13:57:43,744 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [448956698] [2024-11-19 13:57:43,744 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [448956698] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 13:57:43,744 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [916252847] [2024-11-19 13:57:43,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 13:57:43,745 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 13:57:43,745 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 13:57:43,746 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 13:57:43,748 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-19 13:57:43,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 13:57:43,842 INFO L255 TraceCheckSpWp]: Trace formula consists of 284 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-19 13:57:43,844 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 13:57:43,902 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 13:57:43,903 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 13:57:44,106 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 13:57:44,107 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [916252847] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 13:57:44,107 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 13:57:44,107 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16, 16] total 22 [2024-11-19 13:57:44,108 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1224761495] [2024-11-19 13:57:44,108 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 13:57:44,108 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-19 13:57:44,109 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 13:57:44,109 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-19 13:57:44,109 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2024-11-19 13:57:44,137 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 47 [2024-11-19 13:57:44,138 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 98 places, 78 transitions, 424 flow. Second operand has 23 states, 23 states have (on average 18.52173913043478) internal successors, (426), 23 states have internal predecessors, (426), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 13:57:44,138 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 13:57:44,138 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 47 [2024-11-19 13:57:44,138 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 13:57:44,488 INFO L124 PetriNetUnfolderBase]: 369/1055 cut-off events. [2024-11-19 13:57:44,489 INFO L125 PetriNetUnfolderBase]: For 1045/1071 co-relation queries the response was YES. [2024-11-19 13:57:44,493 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2897 conditions, 1055 events. 369/1055 cut-off events. For 1045/1071 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 6078 event pairs, 234 based on Foata normal form. 3/1038 useless extension candidates. Maximal degree in co-relation 2750. Up to 734 conditions per place. [2024-11-19 13:57:44,498 INFO L140 encePairwiseOnDemand]: 43/47 looper letters, 47 selfloop transitions, 21 changer transitions 0/84 dead transitions. [2024-11-19 13:57:44,499 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 118 places, 84 transitions, 614 flow [2024-11-19 13:57:44,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-19 13:57:44,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2024-11-19 13:57:44,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 407 transitions. [2024-11-19 13:57:44,501 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.41236068895643363 [2024-11-19 13:57:44,501 INFO L175 Difference]: Start difference. First operand has 98 places, 78 transitions, 424 flow. Second operand 21 states and 407 transitions. [2024-11-19 13:57:44,501 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 118 places, 84 transitions, 614 flow [2024-11-19 13:57:44,506 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 117 places, 84 transitions, 611 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-19 13:57:44,508 INFO L231 Difference]: Finished difference. Result has 120 places, 84 transitions, 532 flow [2024-11-19 13:57:44,508 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=421, PETRI_DIFFERENCE_MINUEND_PLACES=97, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=78, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=62, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=532, PETRI_PLACES=120, PETRI_TRANSITIONS=84} [2024-11-19 13:57:44,509 INFO L277 CegarLoopForPetriNet]: 47 programPoint places, 73 predicate places. [2024-11-19 13:57:44,509 INFO L471 AbstractCegarLoop]: Abstraction has has 120 places, 84 transitions, 532 flow [2024-11-19 13:57:44,510 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 18.52173913043478) internal successors, (426), 23 states have internal predecessors, (426), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 13:57:44,510 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 13:57:44,511 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 13:57:44,529 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-19 13:57:44,714 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 13:57:44,715 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2024-11-19 13:57:44,715 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 13:57:44,715 INFO L85 PathProgramCache]: Analyzing trace with hash 1386995060, now seen corresponding path program 1 times [2024-11-19 13:57:44,715 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 13:57:44,715 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1558732941] [2024-11-19 13:57:44,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 13:57:44,716 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 13:57:44,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 13:57:45,254 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-19 13:57:45,255 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 13:57:45,255 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1558732941] [2024-11-19 13:57:45,255 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1558732941] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 13:57:45,255 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 13:57:45,255 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-19 13:57:45,255 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2136504162] [2024-11-19 13:57:45,256 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 13:57:45,256 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-19 13:57:45,256 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 13:57:45,257 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-19 13:57:45,257 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-11-19 13:57:45,257 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 47 [2024-11-19 13:57:45,257 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 120 places, 84 transitions, 532 flow. Second operand has 8 states, 8 states have (on average 20.75) internal successors, (166), 8 states have internal predecessors, (166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 13:57:45,258 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 13:57:45,258 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 47 [2024-11-19 13:57:45,258 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 13:57:45,713 INFO L124 PetriNetUnfolderBase]: 496/1391 cut-off events. [2024-11-19 13:57:45,713 INFO L125 PetriNetUnfolderBase]: For 1356/1375 co-relation queries the response was YES. [2024-11-19 13:57:45,719 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3920 conditions, 1391 events. 496/1391 cut-off events. For 1356/1375 co-relation queries the response was YES. Maximal size of possible extension queue 65. Compared 8596 event pairs, 213 based on Foata normal form. 14/1389 useless extension candidates. Maximal degree in co-relation 3745. Up to 511 conditions per place. [2024-11-19 13:57:45,725 INFO L140 encePairwiseOnDemand]: 34/47 looper letters, 144 selfloop transitions, 22 changer transitions 0/182 dead transitions. [2024-11-19 13:57:45,725 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 127 places, 182 transitions, 1351 flow [2024-11-19 13:57:45,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-19 13:57:45,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-19 13:57:45,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 242 transitions. [2024-11-19 13:57:45,727 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6436170212765957 [2024-11-19 13:57:45,727 INFO L175 Difference]: Start difference. First operand has 120 places, 84 transitions, 532 flow. Second operand 8 states and 242 transitions. [2024-11-19 13:57:45,727 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 127 places, 182 transitions, 1351 flow [2024-11-19 13:57:45,736 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 114 places, 182 transitions, 1308 flow, removed 1 selfloop flow, removed 13 redundant places. [2024-11-19 13:57:45,741 INFO L231 Difference]: Finished difference. Result has 119 places, 103 transitions, 698 flow [2024-11-19 13:57:45,742 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=489, PETRI_DIFFERENCE_MINUEND_PLACES=107, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=84, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=67, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=698, PETRI_PLACES=119, PETRI_TRANSITIONS=103} [2024-11-19 13:57:45,742 INFO L277 CegarLoopForPetriNet]: 47 programPoint places, 72 predicate places. [2024-11-19 13:57:45,742 INFO L471 AbstractCegarLoop]: Abstraction has has 119 places, 103 transitions, 698 flow [2024-11-19 13:57:45,743 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 20.75) internal successors, (166), 8 states have internal predecessors, (166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 13:57:45,743 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 13:57:45,743 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 13:57:45,743 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-19 13:57:45,743 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2024-11-19 13:57:45,743 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 13:57:45,744 INFO L85 PathProgramCache]: Analyzing trace with hash 543010746, now seen corresponding path program 2 times [2024-11-19 13:57:45,744 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 13:57:45,744 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [867350673] [2024-11-19 13:57:45,744 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 13:57:45,746 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 13:57:45,768 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-19 13:57:45,768 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 13:57:46,051 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-19 13:57:46,052 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 13:57:46,052 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [867350673] [2024-11-19 13:57:46,052 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [867350673] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 13:57:46,052 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 13:57:46,053 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-19 13:57:46,053 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1021641799] [2024-11-19 13:57:46,053 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 13:57:46,053 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-19 13:57:46,053 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 13:57:46,054 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-19 13:57:46,054 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2024-11-19 13:57:46,054 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 47 [2024-11-19 13:57:46,055 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 119 places, 103 transitions, 698 flow. Second operand has 8 states, 8 states have (on average 20.75) internal successors, (166), 8 states have internal predecessors, (166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 13:57:46,055 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 13:57:46,055 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 47 [2024-11-19 13:57:46,055 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 13:57:46,530 INFO L124 PetriNetUnfolderBase]: 555/1523 cut-off events. [2024-11-19 13:57:46,530 INFO L125 PetriNetUnfolderBase]: For 2684/2721 co-relation queries the response was YES. [2024-11-19 13:57:46,537 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5110 conditions, 1523 events. 555/1523 cut-off events. For 2684/2721 co-relation queries the response was YES. Maximal size of possible extension queue 63. Compared 9623 event pairs, 141 based on Foata normal form. 11/1509 useless extension candidates. Maximal degree in co-relation 4950. Up to 435 conditions per place. [2024-11-19 13:57:46,545 INFO L140 encePairwiseOnDemand]: 36/47 looper letters, 149 selfloop transitions, 27 changer transitions 0/192 dead transitions. [2024-11-19 13:57:46,545 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 126 places, 192 transitions, 1570 flow [2024-11-19 13:57:46,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-19 13:57:46,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-19 13:57:46,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 240 transitions. [2024-11-19 13:57:46,547 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6382978723404256 [2024-11-19 13:57:46,547 INFO L175 Difference]: Start difference. First operand has 119 places, 103 transitions, 698 flow. Second operand 8 states and 240 transitions. [2024-11-19 13:57:46,547 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 126 places, 192 transitions, 1570 flow [2024-11-19 13:57:46,555 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 124 places, 192 transitions, 1553 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-19 13:57:46,558 INFO L231 Difference]: Finished difference. Result has 129 places, 115 transitions, 885 flow [2024-11-19 13:57:46,558 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=692, PETRI_DIFFERENCE_MINUEND_PLACES=117, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=103, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=78, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=885, PETRI_PLACES=129, PETRI_TRANSITIONS=115} [2024-11-19 13:57:46,559 INFO L277 CegarLoopForPetriNet]: 47 programPoint places, 82 predicate places. [2024-11-19 13:57:46,559 INFO L471 AbstractCegarLoop]: Abstraction has has 129 places, 115 transitions, 885 flow [2024-11-19 13:57:46,559 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 20.75) internal successors, (166), 8 states have internal predecessors, (166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 13:57:46,559 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 13:57:46,559 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 13:57:46,560 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-19 13:57:46,560 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2024-11-19 13:57:46,560 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 13:57:46,560 INFO L85 PathProgramCache]: Analyzing trace with hash 305723236, now seen corresponding path program 3 times [2024-11-19 13:57:46,560 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 13:57:46,560 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [889060267] [2024-11-19 13:57:46,560 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-19 13:57:46,561 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 13:57:46,576 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2024-11-19 13:57:46,577 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 13:57:46,837 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-19 13:57:46,837 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 13:57:46,837 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [889060267] [2024-11-19 13:57:46,837 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [889060267] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 13:57:46,837 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 13:57:46,838 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-19 13:57:46,838 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [969783050] [2024-11-19 13:57:46,838 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 13:57:46,838 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-19 13:57:46,838 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 13:57:46,839 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-19 13:57:46,839 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2024-11-19 13:57:46,839 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 47 [2024-11-19 13:57:46,840 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 129 places, 115 transitions, 885 flow. Second operand has 9 states, 9 states have (on average 20.555555555555557) internal successors, (185), 9 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 13:57:46,840 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 13:57:46,840 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 47 [2024-11-19 13:57:46,840 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 13:57:47,411 INFO L124 PetriNetUnfolderBase]: 650/1797 cut-off events. [2024-11-19 13:57:47,412 INFO L125 PetriNetUnfolderBase]: For 4883/4926 co-relation queries the response was YES. [2024-11-19 13:57:47,422 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6714 conditions, 1797 events. 650/1797 cut-off events. For 4883/4926 co-relation queries the response was YES. Maximal size of possible extension queue 74. Compared 12014 event pairs, 99 based on Foata normal form. 7/1784 useless extension candidates. Maximal degree in co-relation 6549. Up to 526 conditions per place. [2024-11-19 13:57:47,432 INFO L140 encePairwiseOnDemand]: 35/47 looper letters, 154 selfloop transitions, 68 changer transitions 0/238 dead transitions. [2024-11-19 13:57:47,432 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 140 places, 238 transitions, 2219 flow [2024-11-19 13:57:47,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-19 13:57:47,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2024-11-19 13:57:47,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 334 transitions. [2024-11-19 13:57:47,434 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5921985815602837 [2024-11-19 13:57:47,434 INFO L175 Difference]: Start difference. First operand has 129 places, 115 transitions, 885 flow. Second operand 12 states and 334 transitions. [2024-11-19 13:57:47,434 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 140 places, 238 transitions, 2219 flow [2024-11-19 13:57:47,448 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 138 places, 238 transitions, 2196 flow, removed 4 selfloop flow, removed 2 redundant places. [2024-11-19 13:57:47,451 INFO L231 Difference]: Finished difference. Result has 145 places, 159 transitions, 1498 flow [2024-11-19 13:57:47,451 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=869, PETRI_DIFFERENCE_MINUEND_PLACES=127, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=115, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=30, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=78, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=1498, PETRI_PLACES=145, PETRI_TRANSITIONS=159} [2024-11-19 13:57:47,452 INFO L277 CegarLoopForPetriNet]: 47 programPoint places, 98 predicate places. [2024-11-19 13:57:47,452 INFO L471 AbstractCegarLoop]: Abstraction has has 145 places, 159 transitions, 1498 flow [2024-11-19 13:57:47,452 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 20.555555555555557) internal successors, (185), 9 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 13:57:47,452 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 13:57:47,452 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 13:57:47,453 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-19 13:57:47,453 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2024-11-19 13:57:47,453 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 13:57:47,453 INFO L85 PathProgramCache]: Analyzing trace with hash 956818980, now seen corresponding path program 4 times [2024-11-19 13:57:47,453 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 13:57:47,453 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1449995711] [2024-11-19 13:57:47,453 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-19 13:57:47,454 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 13:57:47,480 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-19 13:57:47,481 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 13:57:47,723 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-19 13:57:47,723 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 13:57:47,724 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1449995711] [2024-11-19 13:57:47,724 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1449995711] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 13:57:47,724 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 13:57:47,724 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-19 13:57:47,724 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [731092112] [2024-11-19 13:57:47,724 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 13:57:47,724 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-19 13:57:47,724 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 13:57:47,725 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-19 13:57:47,725 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-19 13:57:47,725 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 47 [2024-11-19 13:57:47,725 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 145 places, 159 transitions, 1498 flow. Second operand has 8 states, 8 states have (on average 20.75) internal successors, (166), 8 states have internal predecessors, (166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 13:57:47,725 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 13:57:47,725 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 47 [2024-11-19 13:57:47,725 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 13:57:48,348 INFO L124 PetriNetUnfolderBase]: 670/1855 cut-off events. [2024-11-19 13:57:48,348 INFO L125 PetriNetUnfolderBase]: For 7543/7609 co-relation queries the response was YES. [2024-11-19 13:57:48,398 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7838 conditions, 1855 events. 670/1855 cut-off events. For 7543/7609 co-relation queries the response was YES. Maximal size of possible extension queue 79. Compared 12597 event pairs, 84 based on Foata normal form. 22/1854 useless extension candidates. Maximal degree in co-relation 7665. Up to 445 conditions per place. [2024-11-19 13:57:48,415 INFO L140 encePairwiseOnDemand]: 34/47 looper letters, 192 selfloop transitions, 71 changer transitions 0/279 dead transitions. [2024-11-19 13:57:48,415 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 154 places, 279 transitions, 2962 flow [2024-11-19 13:57:48,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-19 13:57:48,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-19 13:57:48,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 310 transitions. [2024-11-19 13:57:48,418 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6595744680851063 [2024-11-19 13:57:48,418 INFO L175 Difference]: Start difference. First operand has 145 places, 159 transitions, 1498 flow. Second operand 10 states and 310 transitions. [2024-11-19 13:57:48,418 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 154 places, 279 transitions, 2962 flow [2024-11-19 13:57:48,446 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 152 places, 279 transitions, 2875 flow, removed 31 selfloop flow, removed 2 redundant places. [2024-11-19 13:57:48,451 INFO L231 Difference]: Finished difference. Result has 158 places, 179 transitions, 1936 flow [2024-11-19 13:57:48,452 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=1454, PETRI_DIFFERENCE_MINUEND_PLACES=143, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=159, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=51, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=95, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=1936, PETRI_PLACES=158, PETRI_TRANSITIONS=179} [2024-11-19 13:57:48,454 INFO L277 CegarLoopForPetriNet]: 47 programPoint places, 111 predicate places. [2024-11-19 13:57:48,454 INFO L471 AbstractCegarLoop]: Abstraction has has 158 places, 179 transitions, 1936 flow [2024-11-19 13:57:48,454 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 20.75) internal successors, (166), 8 states have internal predecessors, (166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 13:57:48,454 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 13:57:48,455 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 13:57:48,455 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-19 13:57:48,455 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2024-11-19 13:57:48,456 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 13:57:48,456 INFO L85 PathProgramCache]: Analyzing trace with hash 2139292348, now seen corresponding path program 2 times [2024-11-19 13:57:48,456 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 13:57:48,456 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [403421379] [2024-11-19 13:57:48,457 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 13:57:48,457 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 13:57:48,479 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-19 13:57:48,479 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 13:57:48,756 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-19 13:57:48,756 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 13:57:48,757 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [403421379] [2024-11-19 13:57:48,757 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [403421379] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 13:57:48,757 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 13:57:48,757 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-19 13:57:48,757 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1811735885] [2024-11-19 13:57:48,757 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 13:57:48,757 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-19 13:57:48,757 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 13:57:48,758 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-19 13:57:48,758 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2024-11-19 13:57:48,758 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 47 [2024-11-19 13:57:48,758 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 158 places, 179 transitions, 1936 flow. Second operand has 8 states, 8 states have (on average 20.75) internal successors, (166), 8 states have internal predecessors, (166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 13:57:48,758 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 13:57:48,758 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 47 [2024-11-19 13:57:48,758 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 13:57:49,291 INFO L124 PetriNetUnfolderBase]: 670/1890 cut-off events. [2024-11-19 13:57:49,291 INFO L125 PetriNetUnfolderBase]: For 10160/10211 co-relation queries the response was YES. [2024-11-19 13:57:49,307 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8446 conditions, 1890 events. 670/1890 cut-off events. For 10160/10211 co-relation queries the response was YES. Maximal size of possible extension queue 84. Compared 12937 event pairs, 262 based on Foata normal form. 9/1873 useless extension candidates. Maximal degree in co-relation 8267. Up to 620 conditions per place. [2024-11-19 13:57:49,317 INFO L140 encePairwiseOnDemand]: 35/47 looper letters, 200 selfloop transitions, 47 changer transitions 0/263 dead transitions. [2024-11-19 13:57:49,317 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 165 places, 263 transitions, 3192 flow [2024-11-19 13:57:49,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-19 13:57:49,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-19 13:57:49,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 236 transitions. [2024-11-19 13:57:49,319 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6276595744680851 [2024-11-19 13:57:49,319 INFO L175 Difference]: Start difference. First operand has 158 places, 179 transitions, 1936 flow. Second operand 8 states and 236 transitions. [2024-11-19 13:57:49,319 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 165 places, 263 transitions, 3192 flow [2024-11-19 13:57:49,347 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 163 places, 263 transitions, 3045 flow, removed 32 selfloop flow, removed 2 redundant places. [2024-11-19 13:57:49,351 INFO L231 Difference]: Finished difference. Result has 168 places, 199 transitions, 2287 flow [2024-11-19 13:57:49,352 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=1821, PETRI_DIFFERENCE_MINUEND_PLACES=156, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=179, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=27, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=136, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=2287, PETRI_PLACES=168, PETRI_TRANSITIONS=199} [2024-11-19 13:57:49,353 INFO L277 CegarLoopForPetriNet]: 47 programPoint places, 121 predicate places. [2024-11-19 13:57:49,353 INFO L471 AbstractCegarLoop]: Abstraction has has 168 places, 199 transitions, 2287 flow [2024-11-19 13:57:49,353 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 20.75) internal successors, (166), 8 states have internal predecessors, (166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 13:57:49,353 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 13:57:49,353 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 13:57:49,354 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-19 13:57:49,354 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2024-11-19 13:57:49,354 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 13:57:49,354 INFO L85 PathProgramCache]: Analyzing trace with hash 1934160356, now seen corresponding path program 3 times [2024-11-19 13:57:49,354 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 13:57:49,354 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1184748538] [2024-11-19 13:57:49,354 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-19 13:57:49,354 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 13:57:49,371 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2024-11-19 13:57:49,371 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 13:57:49,606 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-19 13:57:49,606 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 13:57:49,606 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1184748538] [2024-11-19 13:57:49,606 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1184748538] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 13:57:49,606 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 13:57:49,606 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-19 13:57:49,606 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1548886947] [2024-11-19 13:57:49,607 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 13:57:49,607 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-19 13:57:49,607 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 13:57:49,607 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-19 13:57:49,607 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-11-19 13:57:49,608 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 47 [2024-11-19 13:57:49,608 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 168 places, 199 transitions, 2287 flow. Second operand has 8 states, 8 states have (on average 20.75) internal successors, (166), 8 states have internal predecessors, (166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 13:57:49,608 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 13:57:49,608 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 47 [2024-11-19 13:57:49,608 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 13:57:50,138 INFO L124 PetriNetUnfolderBase]: 667/1890 cut-off events. [2024-11-19 13:57:50,139 INFO L125 PetriNetUnfolderBase]: For 10644/10698 co-relation queries the response was YES. [2024-11-19 13:57:50,154 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8525 conditions, 1890 events. 667/1890 cut-off events. For 10644/10698 co-relation queries the response was YES. Maximal size of possible extension queue 82. Compared 12946 event pairs, 224 based on Foata normal form. 14/1874 useless extension candidates. Maximal degree in co-relation 8340. Up to 694 conditions per place. [2024-11-19 13:57:50,172 INFO L140 encePairwiseOnDemand]: 34/47 looper letters, 189 selfloop transitions, 66 changer transitions 0/271 dead transitions. [2024-11-19 13:57:50,172 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 175 places, 271 transitions, 3425 flow [2024-11-19 13:57:50,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-19 13:57:50,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-19 13:57:50,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 232 transitions. [2024-11-19 13:57:50,173 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6170212765957447 [2024-11-19 13:57:50,174 INFO L175 Difference]: Start difference. First operand has 168 places, 199 transitions, 2287 flow. Second operand 8 states and 232 transitions. [2024-11-19 13:57:50,174 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 175 places, 271 transitions, 3425 flow [2024-11-19 13:57:50,212 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 172 places, 271 transitions, 3345 flow, removed 30 selfloop flow, removed 3 redundant places. [2024-11-19 13:57:50,218 INFO L231 Difference]: Finished difference. Result has 176 places, 214 transitions, 2668 flow [2024-11-19 13:57:50,220 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=2214, PETRI_DIFFERENCE_MINUEND_PLACES=165, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=199, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=51, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=135, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=2668, PETRI_PLACES=176, PETRI_TRANSITIONS=214} [2024-11-19 13:57:50,220 INFO L277 CegarLoopForPetriNet]: 47 programPoint places, 129 predicate places. [2024-11-19 13:57:50,221 INFO L471 AbstractCegarLoop]: Abstraction has has 176 places, 214 transitions, 2668 flow [2024-11-19 13:57:50,221 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 20.75) internal successors, (166), 8 states have internal predecessors, (166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 13:57:50,221 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 13:57:50,221 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 13:57:50,221 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-19 13:57:50,221 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2024-11-19 13:57:50,222 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 13:57:50,222 INFO L85 PathProgramCache]: Analyzing trace with hash -1202480660, now seen corresponding path program 5 times [2024-11-19 13:57:50,222 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 13:57:50,222 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2078339609] [2024-11-19 13:57:50,222 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-19 13:57:50,223 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 13:57:50,275 INFO L227 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) [2024-11-19 13:57:50,276 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 13:57:50,852 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2024-11-19 13:57:50,852 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 13:57:50,852 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2078339609] [2024-11-19 13:57:50,852 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2078339609] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 13:57:50,852 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1631372379] [2024-11-19 13:57:50,853 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-19 13:57:50,853 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 13:57:50,853 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 13:57:50,855 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 13:57:50,856 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-19 13:57:50,998 INFO L227 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) [2024-11-19 13:57:50,999 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 13:57:51,001 INFO L255 TraceCheckSpWp]: Trace formula consists of 317 conjuncts, 26 conjuncts are in the unsatisfiable core [2024-11-19 13:57:51,003 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 13:57:51,163 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2024-11-19 13:57:51,188 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-19 13:57:51,189 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 13:57:51,189 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1631372379] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 13:57:51,189 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 13:57:51,189 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [8] total 15 [2024-11-19 13:57:51,189 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1419418829] [2024-11-19 13:57:51,189 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 13:57:51,190 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-19 13:57:51,190 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 13:57:51,191 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-19 13:57:51,191 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=201, Unknown=0, NotChecked=0, Total=240 [2024-11-19 13:57:51,191 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 47 [2024-11-19 13:57:51,191 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 176 places, 214 transitions, 2668 flow. Second operand has 8 states, 8 states have (on average 20.75) internal successors, (166), 8 states have internal predecessors, (166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 13:57:51,191 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 13:57:51,192 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 47 [2024-11-19 13:57:51,192 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 13:57:51,955 INFO L124 PetriNetUnfolderBase]: 709/1979 cut-off events. [2024-11-19 13:57:51,955 INFO L125 PetriNetUnfolderBase]: For 13149/13213 co-relation queries the response was YES. [2024-11-19 13:57:51,973 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9318 conditions, 1979 events. 709/1979 cut-off events. For 13149/13213 co-relation queries the response was YES. Maximal size of possible extension queue 85. Compared 13725 event pairs, 220 based on Foata normal form. 18/1962 useless extension candidates. Maximal degree in co-relation 9130. Up to 632 conditions per place. [2024-11-19 13:57:51,984 INFO L140 encePairwiseOnDemand]: 33/47 looper letters, 243 selfloop transitions, 54 changer transitions 0/313 dead transitions. [2024-11-19 13:57:51,984 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 185 places, 313 transitions, 4104 flow [2024-11-19 13:57:51,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-19 13:57:51,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-19 13:57:51,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 302 transitions. [2024-11-19 13:57:51,985 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6425531914893617 [2024-11-19 13:57:51,986 INFO L175 Difference]: Start difference. First operand has 176 places, 214 transitions, 2668 flow. Second operand 10 states and 302 transitions. [2024-11-19 13:57:51,986 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 185 places, 313 transitions, 4104 flow [2024-11-19 13:57:52,031 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 182 places, 313 transitions, 3981 flow, removed 25 selfloop flow, removed 3 redundant places. [2024-11-19 13:57:52,037 INFO L231 Difference]: Finished difference. Result has 188 places, 236 transitions, 3118 flow [2024-11-19 13:57:52,038 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=2556, PETRI_DIFFERENCE_MINUEND_PLACES=173, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=214, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=35, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=165, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=3118, PETRI_PLACES=188, PETRI_TRANSITIONS=236} [2024-11-19 13:57:52,039 INFO L277 CegarLoopForPetriNet]: 47 programPoint places, 141 predicate places. [2024-11-19 13:57:52,039 INFO L471 AbstractCegarLoop]: Abstraction has has 188 places, 236 transitions, 3118 flow [2024-11-19 13:57:52,040 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 20.75) internal successors, (166), 8 states have internal predecessors, (166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 13:57:52,040 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 13:57:52,040 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 13:57:52,058 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-19 13:57:52,240 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-11-19 13:57:52,241 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2024-11-19 13:57:52,241 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 13:57:52,241 INFO L85 PathProgramCache]: Analyzing trace with hash 1228683616, now seen corresponding path program 4 times [2024-11-19 13:57:52,241 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 13:57:52,242 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1416575106] [2024-11-19 13:57:52,242 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-19 13:57:52,242 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 13:57:52,271 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-19 13:57:52,272 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 13:57:52,483 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-19 13:57:52,483 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 13:57:52,483 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1416575106] [2024-11-19 13:57:52,483 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1416575106] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 13:57:52,483 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 13:57:52,483 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-19 13:57:52,483 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2025638090] [2024-11-19 13:57:52,483 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 13:57:52,484 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-19 13:57:52,484 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 13:57:52,484 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-19 13:57:52,484 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-19 13:57:52,484 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 47 [2024-11-19 13:57:52,485 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 188 places, 236 transitions, 3118 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) [2024-11-19 13:57:52,485 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 13:57:52,485 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 47 [2024-11-19 13:57:52,485 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 13:57:53,005 INFO L124 PetriNetUnfolderBase]: 676/1905 cut-off events. [2024-11-19 13:57:53,005 INFO L125 PetriNetUnfolderBase]: For 13315/13375 co-relation queries the response was YES. [2024-11-19 13:57:53,018 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9016 conditions, 1905 events. 676/1905 cut-off events. For 13315/13375 co-relation queries the response was YES. Maximal size of possible extension queue 80. Compared 13061 event pairs, 257 based on Foata normal form. 15/1885 useless extension candidates. Maximal degree in co-relation 8822. Up to 675 conditions per place. [2024-11-19 13:57:53,026 INFO L140 encePairwiseOnDemand]: 35/47 looper letters, 212 selfloop transitions, 55 changer transitions 0/283 dead transitions. [2024-11-19 13:57:53,027 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 194 places, 283 transitions, 3971 flow [2024-11-19 13:57:53,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-19 13:57:53,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-19 13:57:53,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 220 transitions. [2024-11-19 13:57:53,028 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.668693009118541 [2024-11-19 13:57:53,028 INFO L175 Difference]: Start difference. First operand has 188 places, 236 transitions, 3118 flow. Second operand 7 states and 220 transitions. [2024-11-19 13:57:53,028 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 194 places, 283 transitions, 3971 flow [2024-11-19 13:57:53,074 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 190 places, 283 transitions, 3824 flow, removed 48 selfloop flow, removed 4 redundant places. [2024-11-19 13:57:53,079 INFO L231 Difference]: Finished difference. Result has 193 places, 239 transitions, 3187 flow [2024-11-19 13:57:53,080 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=2905, PETRI_DIFFERENCE_MINUEND_PLACES=184, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=232, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=49, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=179, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=3187, PETRI_PLACES=193, PETRI_TRANSITIONS=239} [2024-11-19 13:57:53,080 INFO L277 CegarLoopForPetriNet]: 47 programPoint places, 146 predicate places. [2024-11-19 13:57:53,080 INFO L471 AbstractCegarLoop]: Abstraction has has 193 places, 239 transitions, 3187 flow [2024-11-19 13:57:53,080 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) [2024-11-19 13:57:53,081 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 13:57:53,081 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 13:57:53,081 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-19 13:57:53,081 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2024-11-19 13:57:53,081 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 13:57:53,081 INFO L85 PathProgramCache]: Analyzing trace with hash -356642490, now seen corresponding path program 5 times [2024-11-19 13:57:53,081 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 13:57:53,081 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1347097130] [2024-11-19 13:57:53,082 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-19 13:57:53,082 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 13:57:53,114 INFO L227 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) [2024-11-19 13:57:53,114 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 13:57:53,516 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2024-11-19 13:57:53,516 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 13:57:53,516 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1347097130] [2024-11-19 13:57:53,516 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1347097130] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 13:57:53,516 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1383535675] [2024-11-19 13:57:53,517 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-19 13:57:53,517 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 13:57:53,517 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 13:57:53,518 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 13:57:53,520 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-19 13:57:53,657 INFO L227 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) [2024-11-19 13:57:53,658 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 13:57:53,660 INFO L255 TraceCheckSpWp]: Trace formula consists of 317 conjuncts, 26 conjuncts are in the unsatisfiable core [2024-11-19 13:57:53,662 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 13:57:53,806 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2024-11-19 13:57:53,825 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-19 13:57:53,825 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 13:57:53,825 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1383535675] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 13:57:53,825 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 13:57:53,825 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [9] total 16 [2024-11-19 13:57:53,826 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [657370705] [2024-11-19 13:57:53,826 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 13:57:53,826 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-19 13:57:53,826 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 13:57:53,827 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-19 13:57:53,827 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=199, Unknown=0, NotChecked=0, Total=240 [2024-11-19 13:57:53,827 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 47 [2024-11-19 13:57:53,828 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 193 places, 239 transitions, 3187 flow. Second operand has 8 states, 8 states have (on average 20.75) internal successors, (166), 8 states have internal predecessors, (166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 13:57:53,828 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 13:57:53,828 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 47 [2024-11-19 13:57:53,828 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 13:57:54,509 INFO L124 PetriNetUnfolderBase]: 683/1948 cut-off events. [2024-11-19 13:57:54,509 INFO L125 PetriNetUnfolderBase]: For 12938/12992 co-relation queries the response was YES. [2024-11-19 13:57:54,530 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9049 conditions, 1948 events. 683/1948 cut-off events. For 12938/12992 co-relation queries the response was YES. Maximal size of possible extension queue 88. Compared 13594 event pairs, 203 based on Foata normal form. 17/1924 useless extension candidates. Maximal degree in co-relation 8854. Up to 761 conditions per place. [2024-11-19 13:57:54,541 INFO L140 encePairwiseOnDemand]: 33/47 looper letters, 222 selfloop transitions, 69 changer transitions 0/307 dead transitions. [2024-11-19 13:57:54,542 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 202 places, 307 transitions, 4273 flow [2024-11-19 13:57:54,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-19 13:57:54,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-19 13:57:54,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 291 transitions. [2024-11-19 13:57:54,543 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6191489361702127 [2024-11-19 13:57:54,543 INFO L175 Difference]: Start difference. First operand has 193 places, 239 transitions, 3187 flow. Second operand 10 states and 291 transitions. [2024-11-19 13:57:54,543 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 202 places, 307 transitions, 4273 flow [2024-11-19 13:57:54,596 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 199 places, 307 transitions, 4170 flow, removed 17 selfloop flow, removed 3 redundant places. [2024-11-19 13:57:54,601 INFO L231 Difference]: Finished difference. Result has 204 places, 250 transitions, 3485 flow [2024-11-19 13:57:54,601 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=3029, PETRI_DIFFERENCE_MINUEND_PLACES=190, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=236, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=56, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=170, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=3485, PETRI_PLACES=204, PETRI_TRANSITIONS=250} [2024-11-19 13:57:54,602 INFO L277 CegarLoopForPetriNet]: 47 programPoint places, 157 predicate places. [2024-11-19 13:57:54,602 INFO L471 AbstractCegarLoop]: Abstraction has has 204 places, 250 transitions, 3485 flow [2024-11-19 13:57:54,602 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 20.75) internal successors, (166), 8 states have internal predecessors, (166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 13:57:54,602 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 13:57:54,603 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 13:57:54,619 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-19 13:57:54,806 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 13:57:54,806 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2024-11-19 13:57:54,807 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 13:57:54,807 INFO L85 PathProgramCache]: Analyzing trace with hash -1974924906, now seen corresponding path program 6 times [2024-11-19 13:57:54,807 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 13:57:54,807 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [915820549] [2024-11-19 13:57:54,807 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-19 13:57:54,807 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 13:57:54,821 INFO L227 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2024-11-19 13:57:54,821 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 13:57:55,064 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-19 13:57:55,064 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 13:57:55,064 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [915820549] [2024-11-19 13:57:55,064 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [915820549] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 13:57:55,064 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 13:57:55,064 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-19 13:57:55,064 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1132373102] [2024-11-19 13:57:55,064 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 13:57:55,065 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-19 13:57:55,065 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 13:57:55,066 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-19 13:57:55,066 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-11-19 13:57:55,066 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 47 [2024-11-19 13:57:55,068 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 204 places, 250 transitions, 3485 flow. Second operand has 8 states, 8 states have (on average 20.75) internal successors, (166), 8 states have internal predecessors, (166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 13:57:55,068 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 13:57:55,068 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 47 [2024-11-19 13:57:55,068 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 13:57:55,549 INFO L124 PetriNetUnfolderBase]: 657/1890 cut-off events. [2024-11-19 13:57:55,549 INFO L125 PetriNetUnfolderBase]: For 13525/13573 co-relation queries the response was YES. [2024-11-19 13:57:55,565 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8951 conditions, 1890 events. 657/1890 cut-off events. For 13525/13573 co-relation queries the response was YES. Maximal size of possible extension queue 88. Compared 13119 event pairs, 212 based on Foata normal form. 10/1860 useless extension candidates. Maximal degree in co-relation 8750. Up to 808 conditions per place. [2024-11-19 13:57:55,574 INFO L140 encePairwiseOnDemand]: 36/47 looper letters, 223 selfloop transitions, 50 changer transitions 0/289 dead transitions. [2024-11-19 13:57:55,574 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 211 places, 289 transitions, 4307 flow [2024-11-19 13:57:55,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-19 13:57:55,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-19 13:57:55,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 229 transitions. [2024-11-19 13:57:55,575 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6090425531914894 [2024-11-19 13:57:55,576 INFO L175 Difference]: Start difference. First operand has 204 places, 250 transitions, 3485 flow. Second operand 8 states and 229 transitions. [2024-11-19 13:57:55,576 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 211 places, 289 transitions, 4307 flow [2024-11-19 13:57:55,630 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 208 places, 289 transitions, 4176 flow, removed 48 selfloop flow, removed 3 redundant places. [2024-11-19 13:57:55,635 INFO L231 Difference]: Finished difference. Result has 211 places, 253 transitions, 3546 flow [2024-11-19 13:57:55,635 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=3301, PETRI_DIFFERENCE_MINUEND_PLACES=201, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=247, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=44, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=199, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=3546, PETRI_PLACES=211, PETRI_TRANSITIONS=253} [2024-11-19 13:57:55,636 INFO L277 CegarLoopForPetriNet]: 47 programPoint places, 164 predicate places. [2024-11-19 13:57:55,636 INFO L471 AbstractCegarLoop]: Abstraction has has 211 places, 253 transitions, 3546 flow [2024-11-19 13:57:55,636 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 20.75) internal successors, (166), 8 states have internal predecessors, (166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 13:57:55,636 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 13:57:55,636 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 13:57:55,636 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-19 13:57:55,637 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2024-11-19 13:57:55,637 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 13:57:55,637 INFO L85 PathProgramCache]: Analyzing trace with hash -1450198208, now seen corresponding path program 7 times [2024-11-19 13:57:55,638 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 13:57:55,638 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [47325073] [2024-11-19 13:57:55,638 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-19 13:57:55,638 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 13:57:55,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 13:57:56,051 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-19 13:57:56,051 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 13:57:56,051 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [47325073] [2024-11-19 13:57:56,052 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [47325073] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 13:57:56,052 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 13:57:56,052 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-19 13:57:56,052 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [75464035] [2024-11-19 13:57:56,052 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 13:57:56,052 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-19 13:57:56,053 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 13:57:56,053 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-19 13:57:56,054 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2024-11-19 13:57:56,054 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 47 [2024-11-19 13:57:56,054 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 211 places, 253 transitions, 3546 flow. Second operand has 8 states, 8 states have (on average 20.75) internal successors, (166), 8 states have internal predecessors, (166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 13:57:56,055 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 13:57:56,055 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 47 [2024-11-19 13:57:56,055 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 13:57:56,617 INFO L124 PetriNetUnfolderBase]: 606/1758 cut-off events. [2024-11-19 13:57:56,618 INFO L125 PetriNetUnfolderBase]: For 12772/12820 co-relation queries the response was YES. [2024-11-19 13:57:56,633 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8325 conditions, 1758 events. 606/1758 cut-off events. For 12772/12820 co-relation queries the response was YES. Maximal size of possible extension queue 72. Compared 11992 event pairs, 233 based on Foata normal form. 8/1728 useless extension candidates. Maximal degree in co-relation 8121. Up to 778 conditions per place. [2024-11-19 13:57:56,641 INFO L140 encePairwiseOnDemand]: 36/47 looper letters, 194 selfloop transitions, 71 changer transitions 0/281 dead transitions. [2024-11-19 13:57:56,641 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 216 places, 281 transitions, 4280 flow [2024-11-19 13:57:56,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-19 13:57:56,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-19 13:57:56,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 227 transitions. [2024-11-19 13:57:56,643 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6037234042553191 [2024-11-19 13:57:56,643 INFO L175 Difference]: Start difference. First operand has 211 places, 253 transitions, 3546 flow. Second operand 8 states and 227 transitions. [2024-11-19 13:57:56,643 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 216 places, 281 transitions, 4280 flow [2024-11-19 13:57:56,691 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 210 places, 281 transitions, 4165 flow, removed 22 selfloop flow, removed 6 redundant places. [2024-11-19 13:57:56,696 INFO L231 Difference]: Finished difference. Result has 212 places, 251 transitions, 3643 flow [2024-11-19 13:57:56,697 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=3349, PETRI_DIFFERENCE_MINUEND_PLACES=203, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=245, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=66, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=176, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=3643, PETRI_PLACES=212, PETRI_TRANSITIONS=251} [2024-11-19 13:57:56,697 INFO L277 CegarLoopForPetriNet]: 47 programPoint places, 165 predicate places. [2024-11-19 13:57:56,698 INFO L471 AbstractCegarLoop]: Abstraction has has 212 places, 251 transitions, 3643 flow [2024-11-19 13:57:56,698 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 20.75) internal successors, (166), 8 states have internal predecessors, (166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 13:57:56,698 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 13:57:56,698 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 13:57:56,698 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-19 13:57:56,698 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2024-11-19 13:57:56,700 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 13:57:56,700 INFO L85 PathProgramCache]: Analyzing trace with hash -403979112, now seen corresponding path program 1 times [2024-11-19 13:57:56,700 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 13:57:56,700 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1732653625] [2024-11-19 13:57:56,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 13:57:56,701 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 13:57:56,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 13:57:57,027 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-19 13:57:57,027 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 13:57:57,027 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1732653625] [2024-11-19 13:57:57,028 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1732653625] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 13:57:57,028 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 13:57:57,028 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-19 13:57:57,028 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1243352710] [2024-11-19 13:57:57,028 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 13:57:57,028 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-19 13:57:57,028 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 13:57:57,029 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-19 13:57:57,029 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2024-11-19 13:57:57,057 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 47 [2024-11-19 13:57:57,057 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 212 places, 251 transitions, 3643 flow. Second operand has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 13:57:57,057 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 13:57:57,057 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 47 [2024-11-19 13:57:57,057 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 13:57:58,264 INFO L124 PetriNetUnfolderBase]: 1130/2704 cut-off events. [2024-11-19 13:57:58,264 INFO L125 PetriNetUnfolderBase]: For 18165/18183 co-relation queries the response was YES. [2024-11-19 13:57:58,281 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12239 conditions, 2704 events. 1130/2704 cut-off events. For 18165/18183 co-relation queries the response was YES. Maximal size of possible extension queue 117. Compared 18646 event pairs, 453 based on Foata normal form. 38/2705 useless extension candidates. Maximal degree in co-relation 12035. Up to 832 conditions per place. [2024-11-19 13:57:58,292 INFO L140 encePairwiseOnDemand]: 32/47 looper letters, 313 selfloop transitions, 89 changer transitions 0/413 dead transitions. [2024-11-19 13:57:58,293 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 227 places, 413 transitions, 5605 flow [2024-11-19 13:57:58,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-19 13:57:58,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2024-11-19 13:57:58,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 409 transitions. [2024-11-19 13:57:58,295 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5438829787234043 [2024-11-19 13:57:58,295 INFO L175 Difference]: Start difference. First operand has 212 places, 251 transitions, 3643 flow. Second operand 16 states and 409 transitions. [2024-11-19 13:57:58,295 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 227 places, 413 transitions, 5605 flow [2024-11-19 13:57:58,349 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 223 places, 413 transitions, 5413 flow, removed 22 selfloop flow, removed 4 redundant places. [2024-11-19 13:57:58,354 INFO L231 Difference]: Finished difference. Result has 232 places, 274 transitions, 3943 flow [2024-11-19 13:57:58,355 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=3480, PETRI_DIFFERENCE_MINUEND_PLACES=208, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=251, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=70, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=177, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=3943, PETRI_PLACES=232, PETRI_TRANSITIONS=274} [2024-11-19 13:57:58,355 INFO L277 CegarLoopForPetriNet]: 47 programPoint places, 185 predicate places. [2024-11-19 13:57:58,355 INFO L471 AbstractCegarLoop]: Abstraction has has 232 places, 274 transitions, 3943 flow [2024-11-19 13:57:58,355 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 13:57:58,355 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 13:57:58,356 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 13:57:58,356 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-19 13:57:58,356 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2024-11-19 13:57:58,356 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 13:57:58,356 INFO L85 PathProgramCache]: Analyzing trace with hash 595824386, now seen corresponding path program 1 times [2024-11-19 13:57:58,356 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 13:57:58,356 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1978392289] [2024-11-19 13:57:58,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 13:57:58,357 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 13:57:58,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 13:57:58,680 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-19 13:57:58,680 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 13:57:58,680 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1978392289] [2024-11-19 13:57:58,680 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1978392289] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 13:57:58,680 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 13:57:58,680 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-19 13:57:58,681 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1700538768] [2024-11-19 13:57:58,681 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 13:57:58,681 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-19 13:57:58,682 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 13:57:58,683 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-19 13:57:58,683 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2024-11-19 13:57:58,702 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 47 [2024-11-19 13:57:58,703 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 232 places, 274 transitions, 3943 flow. Second operand has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 13:57:58,703 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 13:57:58,703 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 47 [2024-11-19 13:57:58,703 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 13:57:59,834 INFO L124 PetriNetUnfolderBase]: 1297/3014 cut-off events. [2024-11-19 13:57:59,834 INFO L125 PetriNetUnfolderBase]: For 23482/23510 co-relation queries the response was YES. [2024-11-19 13:57:59,854 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15219 conditions, 3014 events. 1297/3014 cut-off events. For 23482/23510 co-relation queries the response was YES. Maximal size of possible extension queue 122. Compared 20795 event pairs, 558 based on Foata normal form. 27/3013 useless extension candidates. Maximal degree in co-relation 15006. Up to 1591 conditions per place. [2024-11-19 13:57:59,870 INFO L140 encePairwiseOnDemand]: 32/47 looper letters, 330 selfloop transitions, 91 changer transitions 0/433 dead transitions. [2024-11-19 13:57:59,870 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 250 places, 433 transitions, 6305 flow [2024-11-19 13:57:59,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-19 13:57:59,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2024-11-19 13:57:59,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 439 transitions. [2024-11-19 13:57:59,872 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4916013437849944 [2024-11-19 13:57:59,872 INFO L175 Difference]: Start difference. First operand has 232 places, 274 transitions, 3943 flow. Second operand 19 states and 439 transitions. [2024-11-19 13:57:59,872 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 250 places, 433 transitions, 6305 flow [2024-11-19 13:57:59,967 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 248 places, 433 transitions, 6188 flow, removed 19 selfloop flow, removed 2 redundant places. [2024-11-19 13:57:59,973 INFO L231 Difference]: Finished difference. Result has 257 places, 311 transitions, 4564 flow [2024-11-19 13:57:59,974 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=3852, PETRI_DIFFERENCE_MINUEND_PLACES=230, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=274, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=58, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=207, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=4564, PETRI_PLACES=257, PETRI_TRANSITIONS=311} [2024-11-19 13:57:59,974 INFO L277 CegarLoopForPetriNet]: 47 programPoint places, 210 predicate places. [2024-11-19 13:57:59,974 INFO L471 AbstractCegarLoop]: Abstraction has has 257 places, 311 transitions, 4564 flow [2024-11-19 13:57:59,975 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 13:57:59,975 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 13:57:59,975 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 13:57:59,975 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-19 13:57:59,975 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2024-11-19 13:57:59,975 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 13:57:59,976 INFO L85 PathProgramCache]: Analyzing trace with hash -2062484222, now seen corresponding path program 2 times [2024-11-19 13:57:59,976 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 13:57:59,976 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [281313662] [2024-11-19 13:57:59,976 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 13:57:59,976 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 13:57:59,988 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-19 13:57:59,988 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 13:58:00,178 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-19 13:58:00,181 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 13:58:00,181 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [281313662] [2024-11-19 13:58:00,181 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [281313662] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 13:58:00,182 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 13:58:00,182 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-19 13:58:00,182 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1417330392] [2024-11-19 13:58:00,182 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 13:58:00,182 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-19 13:58:00,183 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 13:58:00,183 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-19 13:58:00,183 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2024-11-19 13:58:00,199 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 47 [2024-11-19 13:58:00,199 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 257 places, 311 transitions, 4564 flow. Second operand has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 13:58:00,199 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 13:58:00,199 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 47 [2024-11-19 13:58:00,200 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 13:58:01,209 INFO L124 PetriNetUnfolderBase]: 1402/3289 cut-off events. [2024-11-19 13:58:01,210 INFO L125 PetriNetUnfolderBase]: For 31977/32009 co-relation queries the response was YES. [2024-11-19 13:58:01,235 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18159 conditions, 3289 events. 1402/3289 cut-off events. For 31977/32009 co-relation queries the response was YES. Maximal size of possible extension queue 135. Compared 23291 event pairs, 623 based on Foata normal form. 31/3272 useless extension candidates. Maximal degree in co-relation 17936. Up to 1179 conditions per place. [2024-11-19 13:58:01,255 INFO L140 encePairwiseOnDemand]: 32/47 looper letters, 312 selfloop transitions, 138 changer transitions 0/462 dead transitions. [2024-11-19 13:58:01,255 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 274 places, 462 transitions, 6993 flow [2024-11-19 13:58:01,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-19 13:58:01,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2024-11-19 13:58:01,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 423 transitions. [2024-11-19 13:58:01,257 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5 [2024-11-19 13:58:01,258 INFO L175 Difference]: Start difference. First operand has 257 places, 311 transitions, 4564 flow. Second operand 18 states and 423 transitions. [2024-11-19 13:58:01,258 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 274 places, 462 transitions, 6993 flow [2024-11-19 13:58:01,388 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 272 places, 462 transitions, 6878 flow, removed 35 selfloop flow, removed 2 redundant places. [2024-11-19 13:58:01,503 INFO L231 Difference]: Finished difference. Result has 284 places, 354 transitions, 5601 flow [2024-11-19 13:58:01,503 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=4463, PETRI_DIFFERENCE_MINUEND_PLACES=255, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=311, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=95, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=206, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=5601, PETRI_PLACES=284, PETRI_TRANSITIONS=354} [2024-11-19 13:58:01,504 INFO L277 CegarLoopForPetriNet]: 47 programPoint places, 237 predicate places. [2024-11-19 13:58:01,504 INFO L471 AbstractCegarLoop]: Abstraction has has 284 places, 354 transitions, 5601 flow [2024-11-19 13:58:01,504 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 13:58:01,504 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 13:58:01,505 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 13:58:01,505 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-19 13:58:01,505 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2024-11-19 13:58:01,505 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 13:58:01,506 INFO L85 PathProgramCache]: Analyzing trace with hash -712459620, now seen corresponding path program 3 times [2024-11-19 13:58:01,506 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 13:58:01,506 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1357813211] [2024-11-19 13:58:01,506 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-19 13:58:01,507 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 13:58:01,528 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2024-11-19 13:58:01,531 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 13:58:01,775 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-19 13:58:01,775 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 13:58:01,775 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1357813211] [2024-11-19 13:58:01,775 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1357813211] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 13:58:01,776 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 13:58:01,776 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-19 13:58:01,776 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1699068045] [2024-11-19 13:58:01,776 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 13:58:01,776 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-19 13:58:01,777 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 13:58:01,777 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-19 13:58:01,777 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2024-11-19 13:58:01,873 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 47 [2024-11-19 13:58:01,874 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 284 places, 354 transitions, 5601 flow. Second operand has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 13:58:01,874 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 13:58:01,874 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 47 [2024-11-19 13:58:01,874 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 13:58:03,245 INFO L124 PetriNetUnfolderBase]: 1506/3503 cut-off events. [2024-11-19 13:58:03,246 INFO L125 PetriNetUnfolderBase]: For 48058/48090 co-relation queries the response was YES. [2024-11-19 13:58:03,277 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21554 conditions, 3503 events. 1506/3503 cut-off events. For 48058/48090 co-relation queries the response was YES. Maximal size of possible extension queue 146. Compared 24984 event pairs, 678 based on Foata normal form. 25/3483 useless extension candidates. Maximal degree in co-relation 21318. Up to 1233 conditions per place. [2024-11-19 13:58:03,348 INFO L140 encePairwiseOnDemand]: 32/47 looper letters, 384 selfloop transitions, 105 changer transitions 0/501 dead transitions. [2024-11-19 13:58:03,348 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 302 places, 501 transitions, 8283 flow [2024-11-19 13:58:03,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-19 13:58:03,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2024-11-19 13:58:03,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 451 transitions. [2024-11-19 13:58:03,351 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5050391937290034 [2024-11-19 13:58:03,351 INFO L175 Difference]: Start difference. First operand has 284 places, 354 transitions, 5601 flow. Second operand 19 states and 451 transitions. [2024-11-19 13:58:03,351 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 302 places, 501 transitions, 8283 flow [2024-11-19 13:58:03,574 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 299 places, 501 transitions, 8068 flow, removed 47 selfloop flow, removed 3 redundant places. [2024-11-19 13:58:03,583 INFO L231 Difference]: Finished difference. Result has 310 places, 386 transitions, 6330 flow [2024-11-19 13:58:03,584 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=5402, PETRI_DIFFERENCE_MINUEND_PLACES=281, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=354, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=74, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=269, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=6330, PETRI_PLACES=310, PETRI_TRANSITIONS=386} [2024-11-19 13:58:03,584 INFO L277 CegarLoopForPetriNet]: 47 programPoint places, 263 predicate places. [2024-11-19 13:58:03,584 INFO L471 AbstractCegarLoop]: Abstraction has has 310 places, 386 transitions, 6330 flow [2024-11-19 13:58:03,585 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 13:58:03,585 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 13:58:03,585 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 13:58:03,585 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-11-19 13:58:03,585 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2024-11-19 13:58:03,586 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 13:58:03,586 INFO L85 PathProgramCache]: Analyzing trace with hash -1609474506, now seen corresponding path program 2 times [2024-11-19 13:58:03,586 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 13:58:03,586 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [256183535] [2024-11-19 13:58:03,586 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 13:58:03,587 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 13:58:03,606 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-19 13:58:03,606 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 13:58:03,957 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-19 13:58:03,957 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 13:58:03,957 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [256183535] [2024-11-19 13:58:03,957 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [256183535] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 13:58:03,957 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 13:58:03,958 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-19 13:58:03,958 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1294287198] [2024-11-19 13:58:03,958 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 13:58:03,958 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-19 13:58:03,958 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 13:58:03,959 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-19 13:58:03,959 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2024-11-19 13:58:03,989 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 47 [2024-11-19 13:58:03,990 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 310 places, 386 transitions, 6330 flow. Second operand has 11 states, 11 states have (on average 16.454545454545453) internal successors, (181), 11 states have internal predecessors, (181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 13:58:03,990 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 13:58:03,990 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 47 [2024-11-19 13:58:03,990 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 13:58:05,378 INFO L124 PetriNetUnfolderBase]: 1570/3657 cut-off events. [2024-11-19 13:58:05,378 INFO L125 PetriNetUnfolderBase]: For 64709/64737 co-relation queries the response was YES. [2024-11-19 13:58:05,409 INFO L83 FinitePrefix]: Finished finitePrefix Result has 24015 conditions, 3657 events. 1570/3657 cut-off events. For 64709/64737 co-relation queries the response was YES. Maximal size of possible extension queue 164. Compared 27099 event pairs, 537 based on Foata normal form. 56/3668 useless extension candidates. Maximal degree in co-relation 23767. Up to 2341 conditions per place. [2024-11-19 13:58:05,424 INFO L140 encePairwiseOnDemand]: 33/47 looper letters, 464 selfloop transitions, 55 changer transitions 0/535 dead transitions. [2024-11-19 13:58:05,424 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 322 places, 535 transitions, 9386 flow [2024-11-19 13:58:05,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-19 13:58:05,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2024-11-19 13:58:05,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 322 transitions. [2024-11-19 13:58:05,425 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5270049099836334 [2024-11-19 13:58:05,425 INFO L175 Difference]: Start difference. First operand has 310 places, 386 transitions, 6330 flow. Second operand 13 states and 322 transitions. [2024-11-19 13:58:05,426 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 322 places, 535 transitions, 9386 flow [2024-11-19 13:58:05,721 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 319 places, 535 transitions, 9066 flow, removed 109 selfloop flow, removed 3 redundant places. [2024-11-19 13:58:05,729 INFO L231 Difference]: Finished difference. Result has 326 places, 409 transitions, 6626 flow [2024-11-19 13:58:05,730 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=6074, PETRI_DIFFERENCE_MINUEND_PLACES=307, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=386, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=34, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=342, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=6626, PETRI_PLACES=326, PETRI_TRANSITIONS=409} [2024-11-19 13:58:05,730 INFO L277 CegarLoopForPetriNet]: 47 programPoint places, 279 predicate places. [2024-11-19 13:58:05,730 INFO L471 AbstractCegarLoop]: Abstraction has has 326 places, 409 transitions, 6626 flow [2024-11-19 13:58:05,731 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 16.454545454545453) internal successors, (181), 11 states have internal predecessors, (181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 13:58:05,731 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 13:58:05,731 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 13:58:05,731 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-11-19 13:58:05,731 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2024-11-19 13:58:05,731 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 13:58:05,731 INFO L85 PathProgramCache]: Analyzing trace with hash -1018192400, now seen corresponding path program 3 times [2024-11-19 13:58:05,732 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 13:58:05,732 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1078993645] [2024-11-19 13:58:05,732 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-19 13:58:05,732 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 13:58:05,750 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2024-11-19 13:58:05,750 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 13:58:06,105 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-19 13:58:06,105 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 13:58:06,105 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1078993645] [2024-11-19 13:58:06,105 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1078993645] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 13:58:06,106 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 13:58:06,106 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-19 13:58:06,106 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1827537676] [2024-11-19 13:58:06,106 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 13:58:06,106 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-19 13:58:06,107 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 13:58:06,107 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-19 13:58:06,107 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2024-11-19 13:58:06,143 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 47 [2024-11-19 13:58:06,143 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 326 places, 409 transitions, 6626 flow. Second operand has 11 states, 11 states have (on average 16.454545454545453) internal successors, (181), 11 states have internal predecessors, (181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 13:58:06,144 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 13:58:06,144 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 47 [2024-11-19 13:58:06,144 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 13:58:07,458 INFO L124 PetriNetUnfolderBase]: 1690/3947 cut-off events. [2024-11-19 13:58:07,459 INFO L125 PetriNetUnfolderBase]: For 77494/77516 co-relation queries the response was YES. [2024-11-19 13:58:07,495 INFO L83 FinitePrefix]: Finished finitePrefix Result has 26973 conditions, 3947 events. 1690/3947 cut-off events. For 77494/77516 co-relation queries the response was YES. Maximal size of possible extension queue 189. Compared 30021 event pairs, 588 based on Foata normal form. 54/3947 useless extension candidates. Maximal degree in co-relation 26718. Up to 2551 conditions per place. [2024-11-19 13:58:07,511 INFO L140 encePairwiseOnDemand]: 33/47 looper letters, 491 selfloop transitions, 54 changer transitions 0/561 dead transitions. [2024-11-19 13:58:07,511 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 338 places, 561 transitions, 9825 flow [2024-11-19 13:58:07,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-19 13:58:07,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2024-11-19 13:58:07,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 321 transitions. [2024-11-19 13:58:07,512 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5253682487725041 [2024-11-19 13:58:07,512 INFO L175 Difference]: Start difference. First operand has 326 places, 409 transitions, 6626 flow. Second operand 13 states and 321 transitions. [2024-11-19 13:58:07,512 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 338 places, 561 transitions, 9825 flow [2024-11-19 13:58:07,775 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 337 places, 561 transitions, 9727 flow, removed 46 selfloop flow, removed 1 redundant places. [2024-11-19 13:58:07,782 INFO L231 Difference]: Finished difference. Result has 345 places, 432 transitions, 7153 flow [2024-11-19 13:58:07,782 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=6554, PETRI_DIFFERENCE_MINUEND_PLACES=325, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=409, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=33, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=365, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=7153, PETRI_PLACES=345, PETRI_TRANSITIONS=432} [2024-11-19 13:58:07,783 INFO L277 CegarLoopForPetriNet]: 47 programPoint places, 298 predicate places. [2024-11-19 13:58:07,783 INFO L471 AbstractCegarLoop]: Abstraction has has 345 places, 432 transitions, 7153 flow [2024-11-19 13:58:07,783 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 16.454545454545453) internal successors, (181), 11 states have internal predecessors, (181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 13:58:07,783 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 13:58:07,783 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 13:58:07,784 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-11-19 13:58:07,784 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2024-11-19 13:58:07,784 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 13:58:07,784 INFO L85 PathProgramCache]: Analyzing trace with hash -236621850, now seen corresponding path program 4 times [2024-11-19 13:58:07,784 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 13:58:07,784 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1831430050] [2024-11-19 13:58:07,784 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-19 13:58:07,785 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 13:58:07,802 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-19 13:58:07,802 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 13:58:08,329 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-19 13:58:08,329 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 13:58:08,330 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1831430050] [2024-11-19 13:58:08,330 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1831430050] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 13:58:08,330 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 13:58:08,330 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-19 13:58:08,330 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1605230431] [2024-11-19 13:58:08,330 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 13:58:08,331 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-19 13:58:08,331 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 13:58:08,331 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-19 13:58:08,332 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2024-11-19 13:58:08,356 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 47 [2024-11-19 13:58:08,356 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 345 places, 432 transitions, 7153 flow. Second operand has 11 states, 11 states have (on average 16.454545454545453) internal successors, (181), 11 states have internal predecessors, (181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 13:58:08,356 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 13:58:08,356 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 47 [2024-11-19 13:58:08,357 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 13:58:10,065 INFO L124 PetriNetUnfolderBase]: 1868/4321 cut-off events. [2024-11-19 13:58:10,065 INFO L125 PetriNetUnfolderBase]: For 98055/98079 co-relation queries the response was YES. [2024-11-19 13:58:10,103 INFO L83 FinitePrefix]: Finished finitePrefix Result has 30963 conditions, 4321 events. 1868/4321 cut-off events. For 98055/98079 co-relation queries the response was YES. Maximal size of possible extension queue 214. Compared 33417 event pairs, 570 based on Foata normal form. 54/4320 useless extension candidates. Maximal degree in co-relation 30699. Up to 2815 conditions per place. [2024-11-19 13:58:10,121 INFO L140 encePairwiseOnDemand]: 33/47 looper letters, 512 selfloop transitions, 56 changer transitions 0/584 dead transitions. [2024-11-19 13:58:10,121 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 357 places, 584 transitions, 10471 flow [2024-11-19 13:58:10,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-19 13:58:10,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2024-11-19 13:58:10,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 326 transitions. [2024-11-19 13:58:10,122 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5335515548281505 [2024-11-19 13:58:10,122 INFO L175 Difference]: Start difference. First operand has 345 places, 432 transitions, 7153 flow. Second operand 13 states and 326 transitions. [2024-11-19 13:58:10,123 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 357 places, 584 transitions, 10471 flow [2024-11-19 13:58:10,517 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 356 places, 584 transitions, 10362 flow, removed 47 selfloop flow, removed 1 redundant places. [2024-11-19 13:58:10,524 INFO L231 Difference]: Finished difference. Result has 363 places, 450 transitions, 7641 flow [2024-11-19 13:58:10,525 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=7064, PETRI_DIFFERENCE_MINUEND_PLACES=344, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=432, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=40, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=382, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=7641, PETRI_PLACES=363, PETRI_TRANSITIONS=450} [2024-11-19 13:58:10,525 INFO L277 CegarLoopForPetriNet]: 47 programPoint places, 316 predicate places. [2024-11-19 13:58:10,526 INFO L471 AbstractCegarLoop]: Abstraction has has 363 places, 450 transitions, 7641 flow [2024-11-19 13:58:10,526 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 16.454545454545453) internal successors, (181), 11 states have internal predecessors, (181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 13:58:10,526 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 13:58:10,526 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 13:58:10,526 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-11-19 13:58:10,526 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2024-11-19 13:58:10,526 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 13:58:10,527 INFO L85 PathProgramCache]: Analyzing trace with hash -696113194, now seen corresponding path program 4 times [2024-11-19 13:58:10,527 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 13:58:10,527 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [703652253] [2024-11-19 13:58:10,527 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-19 13:58:10,527 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 13:58:10,546 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-19 13:58:10,547 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 13:58:11,057 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-19 13:58:11,057 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 13:58:11,058 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [703652253] [2024-11-19 13:58:11,058 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [703652253] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 13:58:11,058 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 13:58:11,058 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-19 13:58:11,058 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [786029656] [2024-11-19 13:58:11,058 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 13:58:11,059 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-19 13:58:11,059 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 13:58:11,061 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-19 13:58:11,061 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2024-11-19 13:58:11,103 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 47 [2024-11-19 13:58:11,104 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 363 places, 450 transitions, 7641 flow. Second operand has 11 states, 11 states have (on average 16.454545454545453) internal successors, (181), 11 states have internal predecessors, (181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 13:58:11,104 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 13:58:11,104 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 47 [2024-11-19 13:58:11,104 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 13:58:12,758 INFO L124 PetriNetUnfolderBase]: 2057/4745 cut-off events. [2024-11-19 13:58:12,759 INFO L125 PetriNetUnfolderBase]: For 122970/122996 co-relation queries the response was YES. [2024-11-19 13:58:12,805 INFO L83 FinitePrefix]: Finished finitePrefix Result has 35603 conditions, 4745 events. 2057/4745 cut-off events. For 122970/122996 co-relation queries the response was YES. Maximal size of possible extension queue 247. Compared 37550 event pairs, 685 based on Foata normal form. 35/4713 useless extension candidates. Maximal degree in co-relation 35330. Up to 3285 conditions per place. [2024-11-19 13:58:12,825 INFO L140 encePairwiseOnDemand]: 34/47 looper letters, 490 selfloop transitions, 90 changer transitions 0/596 dead transitions. [2024-11-19 13:58:12,825 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 375 places, 596 transitions, 10995 flow [2024-11-19 13:58:12,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-19 13:58:12,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2024-11-19 13:58:12,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 305 transitions. [2024-11-19 13:58:12,827 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.49918166939443537 [2024-11-19 13:58:12,827 INFO L175 Difference]: Start difference. First operand has 363 places, 450 transitions, 7641 flow. Second operand 13 states and 305 transitions. [2024-11-19 13:58:12,827 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 375 places, 596 transitions, 10995 flow [2024-11-19 13:58:13,333 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 373 places, 596 transitions, 10854 flow, removed 62 selfloop flow, removed 2 redundant places. [2024-11-19 13:58:13,342 INFO L231 Difference]: Finished difference. Result has 381 places, 492 transitions, 8667 flow [2024-11-19 13:58:13,342 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=7513, PETRI_DIFFERENCE_MINUEND_PLACES=361, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=450, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=51, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=366, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=8667, PETRI_PLACES=381, PETRI_TRANSITIONS=492} [2024-11-19 13:58:13,342 INFO L277 CegarLoopForPetriNet]: 47 programPoint places, 334 predicate places. [2024-11-19 13:58:13,343 INFO L471 AbstractCegarLoop]: Abstraction has has 381 places, 492 transitions, 8667 flow [2024-11-19 13:58:13,343 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 16.454545454545453) internal successors, (181), 11 states have internal predecessors, (181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 13:58:13,343 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 13:58:13,343 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 13:58:13,343 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-11-19 13:58:13,343 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2024-11-19 13:58:13,343 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 13:58:13,343 INFO L85 PathProgramCache]: Analyzing trace with hash 591751736, now seen corresponding path program 5 times [2024-11-19 13:58:13,343 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 13:58:13,344 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2013693456] [2024-11-19 13:58:13,344 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-19 13:58:13,344 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 13:58:13,504 INFO L227 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) [2024-11-19 13:58:13,511 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 13:58:13,975 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2024-11-19 13:58:13,975 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 13:58:13,975 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2013693456] [2024-11-19 13:58:13,975 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2013693456] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 13:58:13,976 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1626730727] [2024-11-19 13:58:13,976 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-19 13:58:13,976 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 13:58:13,976 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 13:58:13,978 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 13:58:13,979 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-19 13:58:14,149 INFO L227 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) [2024-11-19 13:58:14,150 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 13:58:14,151 INFO L255 TraceCheckSpWp]: Trace formula consists of 323 conjuncts, 29 conjuncts are in the unsatisfiable core [2024-11-19 13:58:14,153 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 13:58:14,303 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-19 13:58:14,360 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2024-11-19 13:58:14,376 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-19 13:58:14,376 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 13:58:14,376 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1626730727] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 13:58:14,376 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 13:58:14,376 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [10] total 18 [2024-11-19 13:58:14,377 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1201239973] [2024-11-19 13:58:14,377 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 13:58:14,377 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-19 13:58:14,377 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 13:58:14,377 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-19 13:58:14,378 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=325, Unknown=0, NotChecked=0, Total=380 [2024-11-19 13:58:14,399 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 47 [2024-11-19 13:58:14,399 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 381 places, 492 transitions, 8667 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) [2024-11-19 13:58:14,400 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 13:58:14,400 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 47 [2024-11-19 13:58:14,400 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 13:58:16,486 INFO L124 PetriNetUnfolderBase]: 2533/5527 cut-off events. [2024-11-19 13:58:16,486 INFO L125 PetriNetUnfolderBase]: For 161206/161244 co-relation queries the response was YES. [2024-11-19 13:58:16,728 INFO L83 FinitePrefix]: Finished finitePrefix Result has 43849 conditions, 5527 events. 2533/5527 cut-off events. For 161206/161244 co-relation queries the response was YES. Maximal size of possible extension queue 251. Compared 42381 event pairs, 944 based on Foata normal form. 29/5508 useless extension candidates. Maximal degree in co-relation 43567. Up to 2683 conditions per place. [2024-11-19 13:58:16,757 INFO L140 encePairwiseOnDemand]: 32/47 looper letters, 507 selfloop transitions, 192 changer transitions 0/711 dead transitions. [2024-11-19 13:58:16,758 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 401 places, 711 transitions, 13916 flow [2024-11-19 13:58:16,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-19 13:58:16,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2024-11-19 13:58:16,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 487 transitions. [2024-11-19 13:58:16,760 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.49341438703140833 [2024-11-19 13:58:16,760 INFO L175 Difference]: Start difference. First operand has 381 places, 492 transitions, 8667 flow. Second operand 21 states and 487 transitions. [2024-11-19 13:58:16,760 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 401 places, 711 transitions, 13916 flow [2024-11-19 13:58:17,463 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 397 places, 711 transitions, 13639 flow, removed 109 selfloop flow, removed 4 redundant places. [2024-11-19 13:58:17,473 INFO L231 Difference]: Finished difference. Result has 410 places, 557 transitions, 10683 flow [2024-11-19 13:58:17,473 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=8473, PETRI_DIFFERENCE_MINUEND_PLACES=377, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=492, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=129, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=346, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=10683, PETRI_PLACES=410, PETRI_TRANSITIONS=557} [2024-11-19 13:58:17,474 INFO L277 CegarLoopForPetriNet]: 47 programPoint places, 363 predicate places. [2024-11-19 13:58:17,474 INFO L471 AbstractCegarLoop]: Abstraction has has 410 places, 557 transitions, 10683 flow [2024-11-19 13:58:17,474 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) [2024-11-19 13:58:17,474 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 13:58:17,474 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 13:58:17,490 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-19 13:58:17,678 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 13:58:17,679 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2024-11-19 13:58:17,679 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 13:58:17,679 INFO L85 PathProgramCache]: Analyzing trace with hash 685936984, now seen corresponding path program 5 times [2024-11-19 13:58:17,679 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 13:58:17,679 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1368160963] [2024-11-19 13:58:17,680 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-19 13:58:17,680 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 13:58:17,711 INFO L227 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) [2024-11-19 13:58:17,712 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 13:58:18,045 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-19 13:58:18,045 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 13:58:18,046 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1368160963] [2024-11-19 13:58:18,046 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1368160963] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 13:58:18,046 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 13:58:18,046 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-19 13:58:18,046 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [24482043] [2024-11-19 13:58:18,046 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 13:58:18,046 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-19 13:58:18,047 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 13:58:18,048 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-19 13:58:18,048 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2024-11-19 13:58:18,070 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 47 [2024-11-19 13:58:18,070 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 410 places, 557 transitions, 10683 flow. Second operand has 11 states, 11 states have (on average 16.454545454545453) internal successors, (181), 11 states have internal predecessors, (181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 13:58:18,070 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 13:58:18,070 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 47 [2024-11-19 13:58:18,071 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 13:58:20,199 INFO L124 PetriNetUnfolderBase]: 2444/5496 cut-off events. [2024-11-19 13:58:20,199 INFO L125 PetriNetUnfolderBase]: For 190828/190878 co-relation queries the response was YES. [2024-11-19 13:58:20,274 INFO L83 FinitePrefix]: Finished finitePrefix Result has 45973 conditions, 5496 events. 2444/5496 cut-off events. For 190828/190878 co-relation queries the response was YES. Maximal size of possible extension queue 288. Compared 44036 event pairs, 769 based on Foata normal form. 58/5480 useless extension candidates. Maximal degree in co-relation 45678. Up to 3709 conditions per place. [2024-11-19 13:58:20,321 INFO L140 encePairwiseOnDemand]: 33/47 looper letters, 660 selfloop transitions, 67 changer transitions 0/744 dead transitions. [2024-11-19 13:58:20,321 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 422 places, 744 transitions, 15361 flow [2024-11-19 13:58:20,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-19 13:58:20,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2024-11-19 13:58:20,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 320 transitions. [2024-11-19 13:58:20,323 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5237315875613748 [2024-11-19 13:58:20,323 INFO L175 Difference]: Start difference. First operand has 410 places, 557 transitions, 10683 flow. Second operand 13 states and 320 transitions. [2024-11-19 13:58:20,323 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 422 places, 744 transitions, 15361 flow [2024-11-19 13:58:21,363 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 420 places, 744 transitions, 14844 flow, removed 234 selfloop flow, removed 2 redundant places. [2024-11-19 13:58:21,373 INFO L231 Difference]: Finished difference. Result has 427 places, 577 transitions, 10959 flow [2024-11-19 13:58:21,374 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=10296, PETRI_DIFFERENCE_MINUEND_PLACES=408, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=557, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=50, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=497, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=10959, PETRI_PLACES=427, PETRI_TRANSITIONS=577} [2024-11-19 13:58:21,374 INFO L277 CegarLoopForPetriNet]: 47 programPoint places, 380 predicate places. [2024-11-19 13:58:21,374 INFO L471 AbstractCegarLoop]: Abstraction has has 427 places, 577 transitions, 10959 flow [2024-11-19 13:58:21,375 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 16.454545454545453) internal successors, (181), 11 states have internal predecessors, (181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 13:58:21,375 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 13:58:21,375 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 13:58:21,375 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2024-11-19 13:58:21,375 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2024-11-19 13:58:21,375 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 13:58:21,375 INFO L85 PathProgramCache]: Analyzing trace with hash 509382200, now seen corresponding path program 6 times [2024-11-19 13:58:21,375 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 13:58:21,376 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [401081982] [2024-11-19 13:58:21,376 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-19 13:58:21,376 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 13:58:21,393 INFO L227 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2024-11-19 13:58:21,397 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 13:58:21,637 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-19 13:58:21,637 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 13:58:21,637 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [401081982] [2024-11-19 13:58:21,637 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [401081982] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 13:58:21,638 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 13:58:21,638 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-19 13:58:21,638 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1233008229] [2024-11-19 13:58:21,638 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 13:58:21,638 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-19 13:58:21,638 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 13:58:21,639 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-19 13:58:21,639 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2024-11-19 13:58:21,690 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 47 [2024-11-19 13:58:21,690 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 427 places, 577 transitions, 10959 flow. Second operand has 11 states, 11 states have (on average 16.454545454545453) internal successors, (181), 11 states have internal predecessors, (181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 13:58:21,690 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 13:58:21,691 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 47 [2024-11-19 13:58:21,691 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 13:58:23,806 INFO L124 PetriNetUnfolderBase]: 2581/5857 cut-off events. [2024-11-19 13:58:23,807 INFO L125 PetriNetUnfolderBase]: For 217177/217228 co-relation queries the response was YES. [2024-11-19 13:58:23,873 INFO L83 FinitePrefix]: Finished finitePrefix Result has 50121 conditions, 5857 events. 2581/5857 cut-off events. For 217177/217228 co-relation queries the response was YES. Maximal size of possible extension queue 308. Compared 47871 event pairs, 882 based on Foata normal form. 39/5808 useless extension candidates. Maximal degree in co-relation 49819. Up to 4140 conditions per place. [2024-11-19 13:58:23,900 INFO L140 encePairwiseOnDemand]: 34/47 looper letters, 605 selfloop transitions, 117 changer transitions 0/739 dead transitions. [2024-11-19 13:58:23,900 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 439 places, 739 transitions, 14989 flow [2024-11-19 13:58:23,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-19 13:58:23,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2024-11-19 13:58:23,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 306 transitions. [2024-11-19 13:58:23,901 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5008183306055647 [2024-11-19 13:58:23,901 INFO L175 Difference]: Start difference. First operand has 427 places, 577 transitions, 10959 flow. Second operand 13 states and 306 transitions. [2024-11-19 13:58:23,901 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 439 places, 739 transitions, 14989 flow [2024-11-19 13:58:25,031 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 437 places, 739 transitions, 14826 flow, removed 68 selfloop flow, removed 2 redundant places. [2024-11-19 13:58:25,044 INFO L231 Difference]: Finished difference. Result has 445 places, 628 transitions, 12293 flow [2024-11-19 13:58:25,045 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=10814, PETRI_DIFFERENCE_MINUEND_PLACES=425, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=577, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=69, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=470, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=12293, PETRI_PLACES=445, PETRI_TRANSITIONS=628} [2024-11-19 13:58:25,045 INFO L277 CegarLoopForPetriNet]: 47 programPoint places, 398 predicate places. [2024-11-19 13:58:25,045 INFO L471 AbstractCegarLoop]: Abstraction has has 445 places, 628 transitions, 12293 flow [2024-11-19 13:58:25,045 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 16.454545454545453) internal successors, (181), 11 states have internal predecessors, (181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 13:58:25,045 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 13:58:25,046 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 13:58:25,046 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2024-11-19 13:58:25,046 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2024-11-19 13:58:25,046 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 13:58:25,046 INFO L85 PathProgramCache]: Analyzing trace with hash -2004397200, now seen corresponding path program 7 times [2024-11-19 13:58:25,046 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 13:58:25,046 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1088578170] [2024-11-19 13:58:25,047 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-19 13:58:25,047 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 13:58:25,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 13:58:25,425 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-19 13:58:25,426 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 13:58:25,426 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1088578170] [2024-11-19 13:58:25,426 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1088578170] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 13:58:25,426 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 13:58:25,426 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-19 13:58:25,426 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1341568454] [2024-11-19 13:58:25,426 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 13:58:25,427 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-19 13:58:25,427 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 13:58:25,427 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-19 13:58:25,427 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2024-11-19 13:58:25,458 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 47 [2024-11-19 13:58:25,459 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 445 places, 628 transitions, 12293 flow. Second operand has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 13:58:25,459 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 13:58:25,459 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 47 [2024-11-19 13:58:25,459 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 13:58:28,264 INFO L124 PetriNetUnfolderBase]: 3069/6735 cut-off events. [2024-11-19 13:58:28,264 INFO L125 PetriNetUnfolderBase]: For 270588/270656 co-relation queries the response was YES. [2024-11-19 13:58:28,349 INFO L83 FinitePrefix]: Finished finitePrefix Result has 59112 conditions, 6735 events. 3069/6735 cut-off events. For 270588/270656 co-relation queries the response was YES. Maximal size of possible extension queue 321. Compared 54268 event pairs, 1240 based on Foata normal form. 29/6677 useless extension candidates. Maximal degree in co-relation 58801. Up to 2793 conditions per place. [2024-11-19 13:58:28,380 INFO L140 encePairwiseOnDemand]: 32/47 looper letters, 623 selfloop transitions, 142 changer transitions 0/777 dead transitions. [2024-11-19 13:58:28,381 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 462 places, 777 transitions, 16575 flow [2024-11-19 13:58:28,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-19 13:58:28,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2024-11-19 13:58:28,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 423 transitions. [2024-11-19 13:58:28,382 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5 [2024-11-19 13:58:28,382 INFO L175 Difference]: Start difference. First operand has 445 places, 628 transitions, 12293 flow. Second operand 18 states and 423 transitions. [2024-11-19 13:58:28,382 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 462 places, 777 transitions, 16575 flow [2024-11-19 13:58:29,938 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 460 places, 777 transitions, 16327 flow, removed 112 selfloop flow, removed 2 redundant places. [2024-11-19 13:58:29,950 INFO L231 Difference]: Finished difference. Result has 471 places, 659 transitions, 13545 flow [2024-11-19 13:58:29,950 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=12117, PETRI_DIFFERENCE_MINUEND_PLACES=443, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=628, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=114, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=502, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=13545, PETRI_PLACES=471, PETRI_TRANSITIONS=659} [2024-11-19 13:58:29,951 INFO L277 CegarLoopForPetriNet]: 47 programPoint places, 424 predicate places. [2024-11-19 13:58:29,951 INFO L471 AbstractCegarLoop]: Abstraction has has 471 places, 659 transitions, 13545 flow [2024-11-19 13:58:29,951 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 13:58:29,951 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 13:58:29,951 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 13:58:29,951 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2024-11-19 13:58:29,951 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2024-11-19 13:58:29,951 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 13:58:29,951 INFO L85 PathProgramCache]: Analyzing trace with hash 1797247130, now seen corresponding path program 8 times [2024-11-19 13:58:29,952 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 13:58:29,952 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2011413398] [2024-11-19 13:58:29,952 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 13:58:29,952 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 13:58:29,964 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-19 13:58:29,964 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 13:58:30,197 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-19 13:58:30,198 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 13:58:30,198 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2011413398] [2024-11-19 13:58:30,198 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2011413398] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 13:58:30,198 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 13:58:30,198 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-19 13:58:30,198 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1789646763] [2024-11-19 13:58:30,198 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 13:58:30,199 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-19 13:58:30,199 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 13:58:30,199 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-19 13:58:30,199 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2024-11-19 13:58:30,219 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 47 [2024-11-19 13:58:30,220 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 471 places, 659 transitions, 13545 flow. Second operand has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 13:58:30,220 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 13:58:30,220 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 47 [2024-11-19 13:58:30,220 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 13:58:33,545 INFO L124 PetriNetUnfolderBase]: 3275/7166 cut-off events. [2024-11-19 13:58:33,546 INFO L125 PetriNetUnfolderBase]: For 339091/339160 co-relation queries the response was YES. [2024-11-19 13:58:33,640 INFO L83 FinitePrefix]: Finished finitePrefix Result has 66667 conditions, 7166 events. 3275/7166 cut-off events. For 339091/339160 co-relation queries the response was YES. Maximal size of possible extension queue 337. Compared 58326 event pairs, 1258 based on Foata normal form. 31/7109 useless extension candidates. Maximal degree in co-relation 66344. Up to 2658 conditions per place. [2024-11-19 13:58:33,674 INFO L140 encePairwiseOnDemand]: 32/47 looper letters, 579 selfloop transitions, 310 changer transitions 0/901 dead transitions. [2024-11-19 13:58:33,674 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 494 places, 901 transitions, 20012 flow [2024-11-19 13:58:33,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-11-19 13:58:33,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2024-11-19 13:58:33,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 557 transitions. [2024-11-19 13:58:33,676 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.49379432624113473 [2024-11-19 13:58:33,676 INFO L175 Difference]: Start difference. First operand has 471 places, 659 transitions, 13545 flow. Second operand 24 states and 557 transitions. [2024-11-19 13:58:33,676 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 494 places, 901 transitions, 20012 flow [2024-11-19 13:58:35,773 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 491 places, 901 transitions, 19587 flow, removed 191 selfloop flow, removed 3 redundant places. [2024-11-19 13:58:35,790 INFO L231 Difference]: Finished difference. Result has 504 places, 739 transitions, 16169 flow [2024-11-19 13:58:35,791 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=13168, PETRI_DIFFERENCE_MINUEND_PLACES=468, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=659, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=239, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=402, PETRI_DIFFERENCE_SUBTRAHEND_STATES=24, PETRI_FLOW=16169, PETRI_PLACES=504, PETRI_TRANSITIONS=739} [2024-11-19 13:58:35,791 INFO L277 CegarLoopForPetriNet]: 47 programPoint places, 457 predicate places. [2024-11-19 13:58:35,791 INFO L471 AbstractCegarLoop]: Abstraction has has 504 places, 739 transitions, 16169 flow [2024-11-19 13:58:35,791 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 13:58:35,791 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 13:58:35,792 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 13:58:35,792 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2024-11-19 13:58:35,792 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2024-11-19 13:58:35,792 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 13:58:35,792 INFO L85 PathProgramCache]: Analyzing trace with hash -608132700, now seen corresponding path program 6 times [2024-11-19 13:58:35,792 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 13:58:35,792 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [688354007] [2024-11-19 13:58:35,792 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-19 13:58:35,793 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 13:58:35,807 INFO L227 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2024-11-19 13:58:35,808 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 13:58:36,000 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-19 13:58:36,000 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 13:58:36,000 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [688354007] [2024-11-19 13:58:36,000 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [688354007] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 13:58:36,000 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 13:58:36,000 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-19 13:58:36,001 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [189824033] [2024-11-19 13:58:36,001 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 13:58:36,001 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-19 13:58:36,001 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 13:58:36,002 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-19 13:58:36,002 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2024-11-19 13:58:36,019 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 47 [2024-11-19 13:58:36,019 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 504 places, 739 transitions, 16169 flow. Second operand has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 13:58:36,019 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 13:58:36,019 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 47 [2024-11-19 13:58:36,019 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 13:58:39,781 INFO L124 PetriNetUnfolderBase]: 3398/7395 cut-off events. [2024-11-19 13:58:39,781 INFO L125 PetriNetUnfolderBase]: For 379939/380022 co-relation queries the response was YES. [2024-11-19 13:58:39,877 INFO L83 FinitePrefix]: Finished finitePrefix Result has 70351 conditions, 7395 events. 3398/7395 cut-off events. For 379939/380022 co-relation queries the response was YES. Maximal size of possible extension queue 373. Compared 61033 event pairs, 1319 based on Foata normal form. 45/7359 useless extension candidates. Maximal degree in co-relation 70014. Up to 2811 conditions per place. [2024-11-19 13:58:39,912 INFO L140 encePairwiseOnDemand]: 31/47 looper letters, 795 selfloop transitions, 187 changer transitions 0/999 dead transitions. [2024-11-19 13:58:39,912 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 521 places, 999 transitions, 23575 flow [2024-11-19 13:58:39,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-19 13:58:39,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2024-11-19 13:58:39,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 434 transitions. [2024-11-19 13:58:39,913 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5130023640661938 [2024-11-19 13:58:39,913 INFO L175 Difference]: Start difference. First operand has 504 places, 739 transitions, 16169 flow. Second operand 18 states and 434 transitions. [2024-11-19 13:58:39,913 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 521 places, 999 transitions, 23575 flow [2024-11-19 13:58:42,139 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 518 places, 999 transitions, 22697 flow, removed 370 selfloop flow, removed 3 redundant places. [2024-11-19 13:58:42,157 INFO L231 Difference]: Finished difference. Result has 529 places, 780 transitions, 17232 flow [2024-11-19 13:58:42,158 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=15493, PETRI_DIFFERENCE_MINUEND_PLACES=501, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=739, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=147, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=581, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=17232, PETRI_PLACES=529, PETRI_TRANSITIONS=780} [2024-11-19 13:58:42,159 INFO L277 CegarLoopForPetriNet]: 47 programPoint places, 482 predicate places. [2024-11-19 13:58:42,159 INFO L471 AbstractCegarLoop]: Abstraction has has 529 places, 780 transitions, 17232 flow [2024-11-19 13:58:42,159 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 13:58:42,159 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 13:58:42,159 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 13:58:42,159 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2024-11-19 13:58:42,159 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2024-11-19 13:58:42,160 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 13:58:42,160 INFO L85 PathProgramCache]: Analyzing trace with hash -1544905856, now seen corresponding path program 7 times [2024-11-19 13:58:42,160 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 13:58:42,160 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [522578902] [2024-11-19 13:58:42,160 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-19 13:58:42,160 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 13:58:42,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 13:58:42,670 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-19 13:58:42,670 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 13:58:42,670 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [522578902] [2024-11-19 13:58:42,671 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [522578902] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 13:58:42,671 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 13:58:42,671 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-19 13:58:42,671 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [194458594] [2024-11-19 13:58:42,671 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 13:58:42,672 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-19 13:58:42,673 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 13:58:42,673 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-19 13:58:42,673 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2024-11-19 13:58:42,699 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 47 [2024-11-19 13:58:42,699 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 529 places, 780 transitions, 17232 flow. Second operand has 11 states, 11 states have (on average 16.454545454545453) internal successors, (181), 11 states have internal predecessors, (181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 13:58:42,700 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 13:58:42,700 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 47 [2024-11-19 13:58:42,700 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 13:58:46,021 INFO L124 PetriNetUnfolderBase]: 3237/7195 cut-off events. [2024-11-19 13:58:46,021 INFO L125 PetriNetUnfolderBase]: For 416059/416119 co-relation queries the response was YES. [2024-11-19 13:58:46,154 INFO L83 FinitePrefix]: Finished finitePrefix Result has 72229 conditions, 7195 events. 3237/7195 cut-off events. For 416059/416119 co-relation queries the response was YES. Maximal size of possible extension queue 400. Compared 60996 event pairs, 1083 based on Foata normal form. 45/7151 useless extension candidates. Maximal degree in co-relation 71880. Up to 5010 conditions per place. [2024-11-19 13:58:46,207 INFO L140 encePairwiseOnDemand]: 33/47 looper letters, 900 selfloop transitions, 85 changer transitions 0/1005 dead transitions. [2024-11-19 13:58:46,207 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 541 places, 1005 transitions, 23769 flow [2024-11-19 13:58:46,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-19 13:58:46,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2024-11-19 13:58:46,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 323 transitions. [2024-11-19 13:58:46,208 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5286415711947627 [2024-11-19 13:58:46,208 INFO L175 Difference]: Start difference. First operand has 529 places, 780 transitions, 17232 flow. Second operand 13 states and 323 transitions. [2024-11-19 13:58:46,208 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 541 places, 1005 transitions, 23769 flow