./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/eca-rers2012/Problem13_label42.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 803cd42f Calling Ultimate with: /root/.sdkman/candidates/java/current/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/eca-rers2012/Problem13_label42.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-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 ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 0543a7f62c421ec223229fb3e2bfbf903aa6057da67580bb11646235be2c5e7e --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-803cd42-m [2024-11-21 22:15:39,330 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-21 22:15:39,378 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-21 22:15:39,383 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-21 22:15:39,384 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-21 22:15:39,410 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-21 22:15:39,410 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-21 22:15:39,411 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-21 22:15:39,411 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-21 22:15:39,411 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-21 22:15:39,412 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-21 22:15:39,412 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-21 22:15:39,412 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-21 22:15:39,413 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-21 22:15:39,413 INFO L153 SettingsManager]: * Use SBE=true [2024-11-21 22:15:39,413 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-21 22:15:39,414 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-21 22:15:39,414 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-21 22:15:39,414 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-21 22:15:39,414 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-21 22:15:39,418 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-21 22:15:39,419 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-21 22:15:39,419 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-21 22:15:39,419 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-21 22:15:39,419 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-21 22:15:39,419 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-21 22:15:39,420 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-21 22:15:39,420 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-21 22:15:39,420 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-21 22:15:39,420 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-21 22:15:39,420 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-21 22:15:39,420 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-21 22:15:39,421 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-21 22:15:39,421 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-21 22:15:39,421 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-21 22:15:39,421 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-21 22:15:39,421 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-21 22:15:39,422 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-21 22:15:39,422 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-21 22:15:39,422 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-21 22:15:39,426 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-21 22:15:39,426 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-21 22:15:39,426 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0543a7f62c421ec223229fb3e2bfbf903aa6057da67580bb11646235be2c5e7e [2024-11-21 22:15:39,606 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-21 22:15:39,631 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-21 22:15:39,633 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-21 22:15:39,634 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-21 22:15:39,634 INFO L274 PluginConnector]: CDTParser initialized [2024-11-21 22:15:39,635 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem13_label42.c [2024-11-21 22:15:40,863 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-21 22:15:41,210 INFO L384 CDTParser]: Found 1 translation units. [2024-11-21 22:15:41,212 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem13_label42.c [2024-11-21 22:15:41,243 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/39e23783d/aba2a366f3bc433598a0f9ccb0377b8b/FLAG4cbcab817 [2024-11-21 22:15:41,432 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/39e23783d/aba2a366f3bc433598a0f9ccb0377b8b [2024-11-21 22:15:41,434 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-21 22:15:41,436 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-21 22:15:41,437 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-21 22:15:41,454 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-21 22:15:41,463 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-21 22:15:41,464 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:15:41" (1/1) ... [2024-11-21 22:15:41,464 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@298b1f21 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:15:41, skipping insertion in model container [2024-11-21 22:15:41,465 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:15:41" (1/1) ... [2024-11-21 22:15:41,564 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-21 22:15:41,780 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem13_label42.c[9228,9241] [2024-11-21 22:15:42,346 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-21 22:15:42,354 INFO L200 MainTranslator]: Completed pre-run [2024-11-21 22:15:42,373 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem13_label42.c[9228,9241] [2024-11-21 22:15:42,786 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-21 22:15:42,807 INFO L204 MainTranslator]: Completed translation [2024-11-21 22:15:42,807 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:15:42 WrapperNode [2024-11-21 22:15:42,808 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-21 22:15:42,808 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-21 22:15:42,809 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-21 22:15:42,809 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-21 22:15:42,814 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:15:42" (1/1) ... [2024-11-21 22:15:42,857 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:15:42" (1/1) ... [2024-11-21 22:15:43,312 INFO L138 Inliner]: procedures = 17, calls = 11, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 5587 [2024-11-21 22:15:43,312 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-21 22:15:43,313 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-21 22:15:43,313 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-21 22:15:43,313 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-21 22:15:43,330 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:15:42" (1/1) ... [2024-11-21 22:15:43,331 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:15:42" (1/1) ... [2024-11-21 22:15:43,436 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:15:42" (1/1) ... [2024-11-21 22:15:43,620 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-21 22:15:43,621 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:15:42" (1/1) ... [2024-11-21 22:15:43,621 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:15:42" (1/1) ... [2024-11-21 22:15:43,735 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:15:42" (1/1) ... [2024-11-21 22:15:43,758 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:15:42" (1/1) ... [2024-11-21 22:15:43,784 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:15:42" (1/1) ... [2024-11-21 22:15:43,804 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:15:42" (1/1) ... [2024-11-21 22:15:43,847 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-21 22:15:43,848 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-21 22:15:43,848 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-21 22:15:43,848 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-21 22:15:43,849 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:15:42" (1/1) ... [2024-11-21 22:15:43,853 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-21 22:15:43,862 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-21 22:15:43,877 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) [2024-11-21 22:15:43,885 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 [2024-11-21 22:15:43,923 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-21 22:15:43,923 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-21 22:15:43,923 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-21 22:15:43,924 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-21 22:15:43,981 INFO L238 CfgBuilder]: Building ICFG [2024-11-21 22:15:43,983 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-21 22:15:48,095 INFO L? ?]: Removed 738 outVars from TransFormulas that were not future-live. [2024-11-21 22:15:48,095 INFO L287 CfgBuilder]: Performing block encoding [2024-11-21 22:15:48,123 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-21 22:15:48,123 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-21 22:15:48,123 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:15:48 BoogieIcfgContainer [2024-11-21 22:15:48,123 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-21 22:15:48,125 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-21 22:15:48,125 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-21 22:15:48,128 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-21 22:15:48,128 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 10:15:41" (1/3) ... [2024-11-21 22:15:48,129 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d01b3bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 10:15:48, skipping insertion in model container [2024-11-21 22:15:48,129 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:15:42" (2/3) ... [2024-11-21 22:15:48,129 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d01b3bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 10:15:48, skipping insertion in model container [2024-11-21 22:15:48,129 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:15:48" (3/3) ... [2024-11-21 22:15:48,130 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem13_label42.c [2024-11-21 22:15:48,141 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-21 22:15:48,141 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-21 22:15:48,198 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-21 22:15:48,203 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;@175aa87a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-21 22:15:48,203 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-21 22:15:48,209 INFO L276 IsEmpty]: Start isEmpty. Operand has 1098 states, 1096 states have (on average 1.8275547445255473) internal successors, (2003), 1097 states have internal predecessors, (2003), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:15:48,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-21 22:15:48,215 INFO L207 NwaCegarLoop]: Found error trace [2024-11-21 22:15:48,215 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-21 22:15:48,216 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-21 22:15:48,219 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 22:15:48,219 INFO L85 PathProgramCache]: Analyzing trace with hash 962891993, now seen corresponding path program 1 times [2024-11-21 22:15:48,225 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-21 22:15:48,225 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1494733598] [2024-11-21 22:15:48,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 22:15:48,225 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-21 22:15:48,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 22:15:48,488 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-21 22:15:48,488 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-21 22:15:48,489 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1494733598] [2024-11-21 22:15:48,489 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1494733598] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-21 22:15:48,489 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-21 22:15:48,489 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-21 22:15:48,490 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1349078161] [2024-11-21 22:15:48,491 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-21 22:15:48,493 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-21 22:15:48,494 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-21 22:15:48,507 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-21 22:15:48,508 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-21 22:15:48,511 INFO L87 Difference]: Start difference. First operand has 1098 states, 1096 states have (on average 1.8275547445255473) internal successors, (2003), 1097 states have internal predecessors, (2003), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 2 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:15:52,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-21 22:15:52,390 INFO L93 Difference]: Finished difference Result 3121 states and 5804 transitions. [2024-11-21 22:15:52,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-21 22:15:52,394 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 2 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 65 [2024-11-21 22:15:52,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-21 22:15:52,438 INFO L225 Difference]: With dead ends: 3121 [2024-11-21 22:15:52,442 INFO L226 Difference]: Without dead ends: 1944 [2024-11-21 22:15:52,452 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-21 22:15:52,458 INFO L432 NwaCegarLoop]: 438 mSDtfsCounter, 924 mSDsluCounter, 137 mSDsCounter, 0 mSdLazyCounter, 3124 mSolverCounterSat, 577 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 924 SdHoareTripleChecker+Valid, 575 SdHoareTripleChecker+Invalid, 3701 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 577 IncrementalHoareTripleChecker+Valid, 3124 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2024-11-21 22:15:52,460 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [924 Valid, 575 Invalid, 3701 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [577 Valid, 3124 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2024-11-21 22:15:52,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1944 states. [2024-11-21 22:15:52,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1944 to 1873. [2024-11-21 22:15:52,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1873 states, 1872 states have (on average 1.7393162393162394) internal successors, (3256), 1872 states have internal predecessors, (3256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:15:52,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1873 states to 1873 states and 3256 transitions. [2024-11-21 22:15:52,563 INFO L78 Accepts]: Start accepts. Automaton has 1873 states and 3256 transitions. Word has length 65 [2024-11-21 22:15:52,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-21 22:15:52,565 INFO L471 AbstractCegarLoop]: Abstraction has 1873 states and 3256 transitions. [2024-11-21 22:15:52,565 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 2 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:15:52,565 INFO L276 IsEmpty]: Start isEmpty. Operand 1873 states and 3256 transitions. [2024-11-21 22:15:52,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2024-11-21 22:15:52,570 INFO L207 NwaCegarLoop]: Found error trace [2024-11-21 22:15:52,570 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-21 22:15:52,570 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-21 22:15:52,571 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-21 22:15:52,571 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 22:15:52,571 INFO L85 PathProgramCache]: Analyzing trace with hash -746498798, now seen corresponding path program 1 times [2024-11-21 22:15:52,571 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-21 22:15:52,572 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [444729250] [2024-11-21 22:15:52,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 22:15:52,572 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-21 22:15:52,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 22:15:52,752 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 62 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-21 22:15:52,752 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-21 22:15:52,752 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [444729250] [2024-11-21 22:15:52,752 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [444729250] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-21 22:15:52,753 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-21 22:15:52,753 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-21 22:15:52,753 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2112453337] [2024-11-21 22:15:52,753 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-21 22:15:52,754 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-21 22:15:52,755 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-21 22:15:52,755 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-21 22:15:52,755 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-21 22:15:52,755 INFO L87 Difference]: Start difference. First operand 1873 states and 3256 transitions. Second operand has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 2 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:15:55,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-21 22:15:55,925 INFO L93 Difference]: Finished difference Result 5351 states and 9369 transitions. [2024-11-21 22:15:55,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-21 22:15:55,927 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 2 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2024-11-21 22:15:55,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-21 22:15:55,936 INFO L225 Difference]: With dead ends: 5351 [2024-11-21 22:15:55,937 INFO L226 Difference]: Without dead ends: 3480 [2024-11-21 22:15:55,940 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-21 22:15:55,941 INFO L432 NwaCegarLoop]: 926 mSDtfsCounter, 884 mSDsluCounter, 153 mSDsCounter, 0 mSdLazyCounter, 2338 mSolverCounterSat, 878 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 884 SdHoareTripleChecker+Valid, 1079 SdHoareTripleChecker+Invalid, 3216 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 878 IncrementalHoareTripleChecker+Valid, 2338 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2024-11-21 22:15:55,941 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [884 Valid, 1079 Invalid, 3216 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [878 Valid, 2338 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2024-11-21 22:15:55,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3480 states. [2024-11-21 22:15:55,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3480 to 3479. [2024-11-21 22:15:55,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3479 states, 3478 states have (on average 1.518688901667625) internal successors, (5282), 3478 states have internal predecessors, (5282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:15:55,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3479 states to 3479 states and 5282 transitions. [2024-11-21 22:15:56,000 INFO L78 Accepts]: Start accepts. Automaton has 3479 states and 5282 transitions. Word has length 130 [2024-11-21 22:15:56,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-21 22:15:56,002 INFO L471 AbstractCegarLoop]: Abstraction has 3479 states and 5282 transitions. [2024-11-21 22:15:56,002 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 2 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:15:56,003 INFO L276 IsEmpty]: Start isEmpty. Operand 3479 states and 5282 transitions. [2024-11-21 22:15:56,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2024-11-21 22:15:56,008 INFO L207 NwaCegarLoop]: Found error trace [2024-11-21 22:15:56,008 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-21 22:15:56,008 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-21 22:15:56,008 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-21 22:15:56,009 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 22:15:56,009 INFO L85 PathProgramCache]: Analyzing trace with hash 1004753335, now seen corresponding path program 1 times [2024-11-21 22:15:56,009 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-21 22:15:56,009 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1980837026] [2024-11-21 22:15:56,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 22:15:56,009 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-21 22:15:56,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 22:15:56,187 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 62 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-21 22:15:56,188 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-21 22:15:56,188 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1980837026] [2024-11-21 22:15:56,189 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1980837026] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-21 22:15:56,189 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-21 22:15:56,190 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-21 22:15:56,190 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [224962858] [2024-11-21 22:15:56,190 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-21 22:15:56,190 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-21 22:15:56,192 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-21 22:15:56,192 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-21 22:15:56,193 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-21 22:15:56,193 INFO L87 Difference]: Start difference. First operand 3479 states and 5282 transitions. Second operand has 3 states, 3 states have (on average 44.0) internal successors, (132), 2 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:15:59,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-21 22:15:59,610 INFO L93 Difference]: Finished difference Result 10144 states and 15439 transitions. [2024-11-21 22:15:59,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-21 22:15:59,610 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 2 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 132 [2024-11-21 22:15:59,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-21 22:15:59,626 INFO L225 Difference]: With dead ends: 10144 [2024-11-21 22:15:59,626 INFO L226 Difference]: Without dead ends: 6667 [2024-11-21 22:15:59,628 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-21 22:15:59,629 INFO L432 NwaCegarLoop]: 745 mSDtfsCounter, 977 mSDsluCounter, 134 mSDsCounter, 0 mSdLazyCounter, 2554 mSolverCounterSat, 771 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 977 SdHoareTripleChecker+Valid, 879 SdHoareTripleChecker+Invalid, 3325 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 771 IncrementalHoareTripleChecker+Valid, 2554 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2024-11-21 22:15:59,630 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [977 Valid, 879 Invalid, 3325 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [771 Valid, 2554 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2024-11-21 22:15:59,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6667 states. [2024-11-21 22:15:59,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6667 to 6657. [2024-11-21 22:15:59,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6657 states, 6656 states have (on average 1.3728966346153846) internal successors, (9138), 6656 states have internal predecessors, (9138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:15:59,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6657 states to 6657 states and 9138 transitions. [2024-11-21 22:15:59,700 INFO L78 Accepts]: Start accepts. Automaton has 6657 states and 9138 transitions. Word has length 132 [2024-11-21 22:15:59,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-21 22:15:59,702 INFO L471 AbstractCegarLoop]: Abstraction has 6657 states and 9138 transitions. [2024-11-21 22:15:59,702 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 2 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:15:59,702 INFO L276 IsEmpty]: Start isEmpty. Operand 6657 states and 9138 transitions. [2024-11-21 22:15:59,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2024-11-21 22:15:59,705 INFO L207 NwaCegarLoop]: Found error trace [2024-11-21 22:15:59,705 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-21 22:15:59,705 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-21 22:15:59,705 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-21 22:15:59,705 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 22:15:59,706 INFO L85 PathProgramCache]: Analyzing trace with hash -894756506, now seen corresponding path program 1 times [2024-11-21 22:15:59,706 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-21 22:15:59,706 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1248692189] [2024-11-21 22:15:59,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 22:15:59,706 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-21 22:15:59,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 22:15:59,832 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 62 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-21 22:15:59,832 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-21 22:15:59,833 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1248692189] [2024-11-21 22:15:59,833 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1248692189] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-21 22:15:59,833 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-21 22:15:59,833 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-21 22:15:59,833 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [532776640] [2024-11-21 22:15:59,833 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-21 22:15:59,833 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-21 22:15:59,833 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-21 22:15:59,834 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-21 22:15:59,834 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-21 22:15:59,834 INFO L87 Difference]: Start difference. First operand 6657 states and 9138 transitions. Second operand has 3 states, 3 states have (on average 46.0) internal successors, (138), 2 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:16:02,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-21 22:16:02,625 INFO L93 Difference]: Finished difference Result 19637 states and 26969 transitions. [2024-11-21 22:16:02,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-21 22:16:02,625 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 46.0) internal successors, (138), 2 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 138 [2024-11-21 22:16:02,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-21 22:16:02,659 INFO L225 Difference]: With dead ends: 19637 [2024-11-21 22:16:02,662 INFO L226 Difference]: Without dead ends: 12982 [2024-11-21 22:16:02,672 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-21 22:16:02,673 INFO L432 NwaCegarLoop]: 1012 mSDtfsCounter, 792 mSDsluCounter, 150 mSDsCounter, 0 mSdLazyCounter, 2485 mSolverCounterSat, 792 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 792 SdHoareTripleChecker+Valid, 1162 SdHoareTripleChecker+Invalid, 3277 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 792 IncrementalHoareTripleChecker+Valid, 2485 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2024-11-21 22:16:02,673 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [792 Valid, 1162 Invalid, 3277 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [792 Valid, 2485 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2024-11-21 22:16:02,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12982 states. [2024-11-21 22:16:02,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12982 to 12964. [2024-11-21 22:16:02,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12964 states, 12963 states have (on average 1.2390650312427678) internal successors, (16062), 12963 states have internal predecessors, (16062), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:16:02,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12964 states to 12964 states and 16062 transitions. [2024-11-21 22:16:02,849 INFO L78 Accepts]: Start accepts. Automaton has 12964 states and 16062 transitions. Word has length 138 [2024-11-21 22:16:02,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-21 22:16:02,851 INFO L471 AbstractCegarLoop]: Abstraction has 12964 states and 16062 transitions. [2024-11-21 22:16:02,851 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 46.0) internal successors, (138), 2 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:16:02,851 INFO L276 IsEmpty]: Start isEmpty. Operand 12964 states and 16062 transitions. [2024-11-21 22:16:02,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2024-11-21 22:16:02,852 INFO L207 NwaCegarLoop]: Found error trace [2024-11-21 22:16:02,852 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-21 22:16:02,853 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-21 22:16:02,853 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-21 22:16:02,853 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 22:16:02,853 INFO L85 PathProgramCache]: Analyzing trace with hash -1196327346, now seen corresponding path program 1 times [2024-11-21 22:16:02,853 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-21 22:16:02,853 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1953442160] [2024-11-21 22:16:02,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 22:16:02,853 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-21 22:16:03,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 22:16:03,302 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 62 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-21 22:16:03,302 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-21 22:16:03,302 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1953442160] [2024-11-21 22:16:03,303 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1953442160] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-21 22:16:03,303 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-21 22:16:03,304 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-21 22:16:03,304 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [955851807] [2024-11-21 22:16:03,304 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-21 22:16:03,304 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-21 22:16:03,305 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-21 22:16:03,305 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-21 22:16:03,306 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-21 22:16:03,306 INFO L87 Difference]: Start difference. First operand 12964 states and 16062 transitions. Second operand has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:16:05,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-21 22:16:05,664 INFO L93 Difference]: Finished difference Result 26713 states and 32924 transitions. [2024-11-21 22:16:05,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-21 22:16:05,669 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 154 [2024-11-21 22:16:05,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-21 22:16:05,726 INFO L225 Difference]: With dead ends: 26713 [2024-11-21 22:16:05,726 INFO L226 Difference]: Without dead ends: 13751 [2024-11-21 22:16:05,751 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-21 22:16:05,756 INFO L432 NwaCegarLoop]: 1083 mSDtfsCounter, 700 mSDsluCounter, 129 mSDsCounter, 0 mSdLazyCounter, 2520 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 700 SdHoareTripleChecker+Valid, 1212 SdHoareTripleChecker+Invalid, 2529 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 2520 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-11-21 22:16:05,760 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [700 Valid, 1212 Invalid, 2529 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 2520 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-11-21 22:16:05,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13751 states. [2024-11-21 22:16:06,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13751 to 13751. [2024-11-21 22:16:06,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13751 states, 13750 states have (on average 1.2257454545454545) internal successors, (16854), 13750 states have internal predecessors, (16854), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:16:06,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13751 states to 13751 states and 16854 transitions. [2024-11-21 22:16:06,203 INFO L78 Accepts]: Start accepts. Automaton has 13751 states and 16854 transitions. Word has length 154 [2024-11-21 22:16:06,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-21 22:16:06,204 INFO L471 AbstractCegarLoop]: Abstraction has 13751 states and 16854 transitions. [2024-11-21 22:16:06,205 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:16:06,205 INFO L276 IsEmpty]: Start isEmpty. Operand 13751 states and 16854 transitions. [2024-11-21 22:16:06,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2024-11-21 22:16:06,208 INFO L207 NwaCegarLoop]: Found error trace [2024-11-21 22:16:06,208 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-21 22:16:06,208 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-21 22:16:06,210 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-21 22:16:06,211 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 22:16:06,211 INFO L85 PathProgramCache]: Analyzing trace with hash -62914249, now seen corresponding path program 1 times [2024-11-21 22:16:06,212 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-21 22:16:06,212 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1455074090] [2024-11-21 22:16:06,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 22:16:06,212 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-21 22:16:06,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 22:16:06,515 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 62 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-21 22:16:06,516 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-21 22:16:06,516 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1455074090] [2024-11-21 22:16:06,516 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1455074090] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-21 22:16:06,516 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-21 22:16:06,516 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-21 22:16:06,516 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1141260392] [2024-11-21 22:16:06,516 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-21 22:16:06,517 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-21 22:16:06,517 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-21 22:16:06,517 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-21 22:16:06,517 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-21 22:16:06,517 INFO L87 Difference]: Start difference. First operand 13751 states and 16854 transitions. Second operand has 3 states, 3 states have (on average 53.666666666666664) internal successors, (161), 3 states have internal predecessors, (161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:16:09,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-21 22:16:09,326 INFO L93 Difference]: Finished difference Result 26728 states and 32944 transitions. [2024-11-21 22:16:09,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-21 22:16:09,327 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 53.666666666666664) internal successors, (161), 3 states have internal predecessors, (161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 161 [2024-11-21 22:16:09,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-21 22:16:09,347 INFO L225 Difference]: With dead ends: 26728 [2024-11-21 22:16:09,348 INFO L226 Difference]: Without dead ends: 13766 [2024-11-21 22:16:09,360 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-21 22:16:09,361 INFO L432 NwaCegarLoop]: 1256 mSDtfsCounter, 1059 mSDsluCounter, 53 mSDsCounter, 0 mSdLazyCounter, 2456 mSolverCounterSat, 652 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1059 SdHoareTripleChecker+Valid, 1309 SdHoareTripleChecker+Invalid, 3108 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 652 IncrementalHoareTripleChecker+Valid, 2456 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2024-11-21 22:16:09,361 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1059 Valid, 1309 Invalid, 3108 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [652 Valid, 2456 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2024-11-21 22:16:09,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13766 states. [2024-11-21 22:16:09,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13766 to 13748. [2024-11-21 22:16:09,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13748 states, 13747 states have (on average 1.203753546228268) internal successors, (16548), 13747 states have internal predecessors, (16548), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:16:09,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13748 states to 13748 states and 16548 transitions. [2024-11-21 22:16:09,602 INFO L78 Accepts]: Start accepts. Automaton has 13748 states and 16548 transitions. Word has length 161 [2024-11-21 22:16:09,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-21 22:16:09,602 INFO L471 AbstractCegarLoop]: Abstraction has 13748 states and 16548 transitions. [2024-11-21 22:16:09,603 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 53.666666666666664) internal successors, (161), 3 states have internal predecessors, (161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:16:09,603 INFO L276 IsEmpty]: Start isEmpty. Operand 13748 states and 16548 transitions. [2024-11-21 22:16:09,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 244 [2024-11-21 22:16:09,605 INFO L207 NwaCegarLoop]: Found error trace [2024-11-21 22:16:09,605 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-21 22:16:09,605 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-21 22:16:09,605 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-21 22:16:09,606 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 22:16:09,606 INFO L85 PathProgramCache]: Analyzing trace with hash 2120074091, now seen corresponding path program 1 times [2024-11-21 22:16:09,606 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-21 22:16:09,606 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1494004933] [2024-11-21 22:16:09,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 22:16:09,606 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-21 22:16:09,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 22:16:09,737 INFO L134 CoverageAnalysis]: Checked inductivity of 206 backedges. 206 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-21 22:16:09,738 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-21 22:16:09,738 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1494004933] [2024-11-21 22:16:09,738 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1494004933] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-21 22:16:09,738 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-21 22:16:09,738 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-21 22:16:09,738 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [621478048] [2024-11-21 22:16:09,738 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-21 22:16:09,740 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-21 22:16:09,740 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-21 22:16:09,740 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-21 22:16:09,740 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-21 22:16:09,740 INFO L87 Difference]: Start difference. First operand 13748 states and 16548 transitions. Second operand has 3 states, 3 states have (on average 81.0) internal successors, (243), 3 states have internal predecessors, (243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:16:12,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-21 22:16:12,842 INFO L93 Difference]: Finished difference Result 33020 states and 40677 transitions. [2024-11-21 22:16:12,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-21 22:16:12,843 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 81.0) internal successors, (243), 3 states have internal predecessors, (243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 243 [2024-11-21 22:16:12,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-21 22:16:12,880 INFO L225 Difference]: With dead ends: 33020 [2024-11-21 22:16:12,880 INFO L226 Difference]: Without dead ends: 20061 [2024-11-21 22:16:12,890 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-21 22:16:12,891 INFO L432 NwaCegarLoop]: 827 mSDtfsCounter, 881 mSDsluCounter, 118 mSDsCounter, 0 mSdLazyCounter, 2387 mSolverCounterSat, 857 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 881 SdHoareTripleChecker+Valid, 945 SdHoareTripleChecker+Invalid, 3244 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 857 IncrementalHoareTripleChecker+Valid, 2387 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2024-11-21 22:16:12,891 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [881 Valid, 945 Invalid, 3244 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [857 Valid, 2387 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2024-11-21 22:16:12,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20061 states. [2024-11-21 22:16:13,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20061 to 20051. [2024-11-21 22:16:13,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20051 states, 20050 states have (on average 1.1791022443890273) internal successors, (23641), 20050 states have internal predecessors, (23641), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:16:13,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20051 states to 20051 states and 23641 transitions. [2024-11-21 22:16:13,061 INFO L78 Accepts]: Start accepts. Automaton has 20051 states and 23641 transitions. Word has length 243 [2024-11-21 22:16:13,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-21 22:16:13,061 INFO L471 AbstractCegarLoop]: Abstraction has 20051 states and 23641 transitions. [2024-11-21 22:16:13,062 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 81.0) internal successors, (243), 3 states have internal predecessors, (243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:16:13,062 INFO L276 IsEmpty]: Start isEmpty. Operand 20051 states and 23641 transitions. [2024-11-21 22:16:13,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 333 [2024-11-21 22:16:13,067 INFO L207 NwaCegarLoop]: Found error trace [2024-11-21 22:16:13,067 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-21 22:16:13,067 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-21 22:16:13,067 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-21 22:16:13,068 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 22:16:13,068 INFO L85 PathProgramCache]: Analyzing trace with hash -71323228, now seen corresponding path program 1 times [2024-11-21 22:16:13,068 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-21 22:16:13,068 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [809988222] [2024-11-21 22:16:13,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 22:16:13,068 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-21 22:16:13,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 22:16:13,271 INFO L134 CoverageAnalysis]: Checked inductivity of 439 backedges. 351 proven. 0 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2024-11-21 22:16:13,271 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-21 22:16:13,271 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [809988222] [2024-11-21 22:16:13,271 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [809988222] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-21 22:16:13,271 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-21 22:16:13,271 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-21 22:16:13,272 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [779155802] [2024-11-21 22:16:13,272 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-21 22:16:13,273 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-21 22:16:13,273 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-21 22:16:13,273 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-21 22:16:13,273 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-21 22:16:13,273 INFO L87 Difference]: Start difference. First operand 20051 states and 23641 transitions. Second operand has 3 states, 3 states have (on average 81.66666666666667) internal successors, (245), 3 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:16:16,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-21 22:16:16,649 INFO L93 Difference]: Finished difference Result 45632 states and 54873 transitions. [2024-11-21 22:16:16,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-21 22:16:16,650 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 81.66666666666667) internal successors, (245), 3 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 332 [2024-11-21 22:16:16,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-21 22:16:16,681 INFO L225 Difference]: With dead ends: 45632 [2024-11-21 22:16:16,682 INFO L226 Difference]: Without dead ends: 26370 [2024-11-21 22:16:16,698 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-21 22:16:16,699 INFO L432 NwaCegarLoop]: 699 mSDtfsCounter, 968 mSDsluCounter, 88 mSDsCounter, 0 mSdLazyCounter, 2386 mSolverCounterSat, 960 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 968 SdHoareTripleChecker+Valid, 787 SdHoareTripleChecker+Invalid, 3346 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 960 IncrementalHoareTripleChecker+Valid, 2386 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2024-11-21 22:16:16,699 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [968 Valid, 787 Invalid, 3346 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [960 Valid, 2386 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2024-11-21 22:16:16,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26370 states. [2024-11-21 22:16:17,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26370 to 26358. [2024-11-21 22:16:17,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26358 states, 26357 states have (on average 1.1839738968774898) internal successors, (31206), 26357 states have internal predecessors, (31206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:16:17,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26358 states to 26358 states and 31206 transitions. [2024-11-21 22:16:17,079 INFO L78 Accepts]: Start accepts. Automaton has 26358 states and 31206 transitions. Word has length 332 [2024-11-21 22:16:17,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-21 22:16:17,079 INFO L471 AbstractCegarLoop]: Abstraction has 26358 states and 31206 transitions. [2024-11-21 22:16:17,080 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 81.66666666666667) internal successors, (245), 3 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:16:17,080 INFO L276 IsEmpty]: Start isEmpty. Operand 26358 states and 31206 transitions. [2024-11-21 22:16:17,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 385 [2024-11-21 22:16:17,087 INFO L207 NwaCegarLoop]: Found error trace [2024-11-21 22:16:17,088 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-21 22:16:17,088 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-21 22:16:17,088 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-21 22:16:17,088 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 22:16:17,089 INFO L85 PathProgramCache]: Analyzing trace with hash 1335303458, now seen corresponding path program 1 times [2024-11-21 22:16:17,089 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-21 22:16:17,089 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1286392935] [2024-11-21 22:16:17,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 22:16:17,089 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-21 22:16:17,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 22:16:17,487 INFO L134 CoverageAnalysis]: Checked inductivity of 485 backedges. 327 proven. 0 refuted. 0 times theorem prover too weak. 158 trivial. 0 not checked. [2024-11-21 22:16:17,487 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-21 22:16:17,488 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1286392935] [2024-11-21 22:16:17,488 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1286392935] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-21 22:16:17,488 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-21 22:16:17,488 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-21 22:16:17,488 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1204901497] [2024-11-21 22:16:17,488 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-21 22:16:17,489 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-21 22:16:17,489 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-21 22:16:17,490 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-21 22:16:17,490 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-21 22:16:17,491 INFO L87 Difference]: Start difference. First operand 26358 states and 31206 transitions. Second operand has 3 states, 3 states have (on average 76.0) internal successors, (228), 2 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:16:20,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-21 22:16:20,553 INFO L93 Difference]: Finished difference Result 61391 states and 72386 transitions. [2024-11-21 22:16:20,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-21 22:16:20,556 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 76.0) internal successors, (228), 2 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 384 [2024-11-21 22:16:20,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-21 22:16:20,589 INFO L225 Difference]: With dead ends: 61391 [2024-11-21 22:16:20,589 INFO L226 Difference]: Without dead ends: 35822 [2024-11-21 22:16:20,603 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-21 22:16:20,604 INFO L432 NwaCegarLoop]: 1044 mSDtfsCounter, 728 mSDsluCounter, 182 mSDsCounter, 0 mSdLazyCounter, 2729 mSolverCounterSat, 180 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 728 SdHoareTripleChecker+Valid, 1226 SdHoareTripleChecker+Invalid, 2909 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 180 IncrementalHoareTripleChecker+Valid, 2729 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2024-11-21 22:16:20,604 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [728 Valid, 1226 Invalid, 2909 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [180 Valid, 2729 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2024-11-21 22:16:20,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35822 states. [2024-11-21 22:16:20,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35822 to 35812. [2024-11-21 22:16:20,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35812 states, 35811 states have (on average 1.1522716483761972) internal successors, (41264), 35811 states have internal predecessors, (41264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:16:20,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35812 states to 35812 states and 41264 transitions. [2024-11-21 22:16:20,873 INFO L78 Accepts]: Start accepts. Automaton has 35812 states and 41264 transitions. Word has length 384 [2024-11-21 22:16:20,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-21 22:16:20,874 INFO L471 AbstractCegarLoop]: Abstraction has 35812 states and 41264 transitions. [2024-11-21 22:16:20,874 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 76.0) internal successors, (228), 2 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:16:20,874 INFO L276 IsEmpty]: Start isEmpty. Operand 35812 states and 41264 transitions. [2024-11-21 22:16:20,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 393 [2024-11-21 22:16:20,879 INFO L207 NwaCegarLoop]: Found error trace [2024-11-21 22:16:20,879 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-21 22:16:20,879 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-21 22:16:20,879 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-21 22:16:20,879 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 22:16:20,880 INFO L85 PathProgramCache]: Analyzing trace with hash -607606650, now seen corresponding path program 1 times [2024-11-21 22:16:20,880 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-21 22:16:20,880 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [70320427] [2024-11-21 22:16:20,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 22:16:20,880 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-21 22:16:20,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 22:16:21,369 INFO L134 CoverageAnalysis]: Checked inductivity of 690 backedges. 251 proven. 75 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-21 22:16:21,369 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-21 22:16:21,369 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [70320427] [2024-11-21 22:16:21,369 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [70320427] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-21 22:16:21,370 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1733613654] [2024-11-21 22:16:21,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 22:16:21,370 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-21 22:16:21,370 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-21 22:16:21,372 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) [2024-11-21 22:16:21,373 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-21 22:16:21,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 22:16:21,491 INFO L255 TraceCheckSpWp]: Trace formula consists of 556 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-21 22:16:21,499 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-21 22:16:21,830 INFO L134 CoverageAnalysis]: Checked inductivity of 690 backedges. 251 proven. 0 refuted. 0 times theorem prover too weak. 439 trivial. 0 not checked. [2024-11-21 22:16:21,830 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-21 22:16:21,830 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1733613654] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-21 22:16:21,830 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-21 22:16:21,830 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 4 [2024-11-21 22:16:21,830 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1034365944] [2024-11-21 22:16:21,830 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-21 22:16:21,831 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-21 22:16:21,831 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-21 22:16:21,831 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-21 22:16:21,831 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-21 22:16:21,832 INFO L87 Difference]: Start difference. First operand 35812 states and 41264 transitions. Second operand has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:16:24,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-21 22:16:24,937 INFO L93 Difference]: Finished difference Result 101690 states and 117796 transitions. [2024-11-21 22:16:24,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-21 22:16:24,938 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 392 [2024-11-21 22:16:24,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-21 22:16:25,011 INFO L225 Difference]: With dead ends: 101690 [2024-11-21 22:16:25,011 INFO L226 Difference]: Without dead ends: 66667 [2024-11-21 22:16:25,041 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 394 GetRequests, 391 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-21 22:16:25,042 INFO L432 NwaCegarLoop]: 930 mSDtfsCounter, 1043 mSDsluCounter, 209 mSDsCounter, 0 mSdLazyCounter, 2715 mSolverCounterSat, 534 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1043 SdHoareTripleChecker+Valid, 1139 SdHoareTripleChecker+Invalid, 3249 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 534 IncrementalHoareTripleChecker+Valid, 2715 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2024-11-21 22:16:25,042 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1043 Valid, 1139 Invalid, 3249 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [534 Valid, 2715 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2024-11-21 22:16:25,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66667 states. [2024-11-21 22:16:25,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66667 to 65861. [2024-11-21 22:16:25,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65861 states, 65860 states have (on average 1.1312784694807168) internal successors, (74506), 65860 states have internal predecessors, (74506), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:16:25,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65861 states to 65861 states and 74506 transitions. [2024-11-21 22:16:25,615 INFO L78 Accepts]: Start accepts. Automaton has 65861 states and 74506 transitions. Word has length 392 [2024-11-21 22:16:25,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-21 22:16:25,616 INFO L471 AbstractCegarLoop]: Abstraction has 65861 states and 74506 transitions. [2024-11-21 22:16:25,616 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:16:25,616 INFO L276 IsEmpty]: Start isEmpty. Operand 65861 states and 74506 transitions. [2024-11-21 22:16:25,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 393 [2024-11-21 22:16:25,621 INFO L207 NwaCegarLoop]: Found error trace [2024-11-21 22:16:25,622 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-21 22:16:25,630 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-21 22:16:25,823 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-11-21 22:16:25,824 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-21 22:16:25,824 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 22:16:25,824 INFO L85 PathProgramCache]: Analyzing trace with hash 1692395044, now seen corresponding path program 1 times [2024-11-21 22:16:25,824 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-21 22:16:25,824 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1444184997] [2024-11-21 22:16:25,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 22:16:25,825 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-21 22:16:25,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 22:16:26,087 INFO L134 CoverageAnalysis]: Checked inductivity of 460 backedges. 188 proven. 0 refuted. 0 times theorem prover too weak. 272 trivial. 0 not checked. [2024-11-21 22:16:26,088 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-21 22:16:26,088 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1444184997] [2024-11-21 22:16:26,088 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1444184997] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-21 22:16:26,088 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-21 22:16:26,088 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-21 22:16:26,088 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [804657877] [2024-11-21 22:16:26,088 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-21 22:16:26,089 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-21 22:16:26,089 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-21 22:16:26,090 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-21 22:16:26,090 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-21 22:16:26,090 INFO L87 Difference]: Start difference. First operand 65861 states and 74506 transitions. Second operand has 3 states, 3 states have (on average 70.0) internal successors, (210), 3 states have internal predecessors, (210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:16:30,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-21 22:16:30,458 INFO L93 Difference]: Finished difference Result 161805 states and 183745 transitions. [2024-11-21 22:16:30,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-21 22:16:30,458 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 70.0) internal successors, (210), 3 states have internal predecessors, (210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 392 [2024-11-21 22:16:30,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-21 22:16:30,570 INFO L225 Difference]: With dead ends: 161805 [2024-11-21 22:16:30,570 INFO L226 Difference]: Without dead ends: 96733 [2024-11-21 22:16:30,601 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-21 22:16:30,602 INFO L432 NwaCegarLoop]: 359 mSDtfsCounter, 975 mSDsluCounter, 105 mSDsCounter, 0 mSdLazyCounter, 2989 mSolverCounterSat, 846 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 975 SdHoareTripleChecker+Valid, 464 SdHoareTripleChecker+Invalid, 3835 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 846 IncrementalHoareTripleChecker+Valid, 2989 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2024-11-21 22:16:30,602 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [975 Valid, 464 Invalid, 3835 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [846 Valid, 2989 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2024-11-21 22:16:30,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96733 states. [2024-11-21 22:16:31,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96733 to 95829. [2024-11-21 22:16:31,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 95829 states, 95828 states have (on average 1.1344596568852527) internal successors, (108713), 95828 states have internal predecessors, (108713), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:16:31,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95829 states to 95829 states and 108713 transitions. [2024-11-21 22:16:31,677 INFO L78 Accepts]: Start accepts. Automaton has 95829 states and 108713 transitions. Word has length 392 [2024-11-21 22:16:31,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-21 22:16:31,678 INFO L471 AbstractCegarLoop]: Abstraction has 95829 states and 108713 transitions. [2024-11-21 22:16:31,678 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 70.0) internal successors, (210), 3 states have internal predecessors, (210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:16:31,678 INFO L276 IsEmpty]: Start isEmpty. Operand 95829 states and 108713 transitions. [2024-11-21 22:16:31,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 428 [2024-11-21 22:16:31,686 INFO L207 NwaCegarLoop]: Found error trace [2024-11-21 22:16:31,687 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-21 22:16:31,687 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-21 22:16:31,687 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-21 22:16:31,687 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 22:16:31,687 INFO L85 PathProgramCache]: Analyzing trace with hash -373450363, now seen corresponding path program 1 times [2024-11-21 22:16:31,687 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-21 22:16:31,688 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1503059711] [2024-11-21 22:16:31,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 22:16:31,688 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-21 22:16:31,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 22:16:32,294 INFO L134 CoverageAnalysis]: Checked inductivity of 749 backedges. 544 proven. 0 refuted. 0 times theorem prover too weak. 205 trivial. 0 not checked. [2024-11-21 22:16:32,294 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-21 22:16:32,295 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1503059711] [2024-11-21 22:16:32,295 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1503059711] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-21 22:16:32,295 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-21 22:16:32,295 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-21 22:16:32,295 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [415836066] [2024-11-21 22:16:32,295 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-21 22:16:32,296 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-21 22:16:32,296 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-21 22:16:32,296 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-21 22:16:32,297 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-21 22:16:32,297 INFO L87 Difference]: Start difference. First operand 95829 states and 108713 transitions. Second operand has 4 states, 4 states have (on average 71.75) internal successors, (287), 3 states have internal predecessors, (287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:16:38,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-21 22:16:38,585 INFO L93 Difference]: Finished difference Result 267516 states and 305475 transitions. [2024-11-21 22:16:38,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-21 22:16:38,586 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 71.75) internal successors, (287), 3 states have internal predecessors, (287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 427 [2024-11-21 22:16:38,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-21 22:16:38,920 INFO L225 Difference]: With dead ends: 267516 [2024-11-21 22:16:38,921 INFO L226 Difference]: Without dead ends: 173263 [2024-11-21 22:16:38,966 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-21 22:16:38,966 INFO L432 NwaCegarLoop]: 532 mSDtfsCounter, 1738 mSDsluCounter, 254 mSDsCounter, 0 mSdLazyCounter, 6737 mSolverCounterSat, 1105 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1738 SdHoareTripleChecker+Valid, 786 SdHoareTripleChecker+Invalid, 7842 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1105 IncrementalHoareTripleChecker+Valid, 6737 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2024-11-21 22:16:38,967 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1738 Valid, 786 Invalid, 7842 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1105 Valid, 6737 Invalid, 0 Unknown, 0 Unchecked, 5.6s Time] [2024-11-21 22:16:39,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173263 states. [2024-11-21 22:16:40,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173263 to 173067. [2024-11-21 22:16:40,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 173067 states, 173066 states have (on average 1.1325274750673153) internal successors, (196002), 173066 states have internal predecessors, (196002), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:16:41,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173067 states to 173067 states and 196002 transitions. [2024-11-21 22:16:41,147 INFO L78 Accepts]: Start accepts. Automaton has 173067 states and 196002 transitions. Word has length 427 [2024-11-21 22:16:41,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-21 22:16:41,147 INFO L471 AbstractCegarLoop]: Abstraction has 173067 states and 196002 transitions. [2024-11-21 22:16:41,147 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 71.75) internal successors, (287), 3 states have internal predecessors, (287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:16:41,147 INFO L276 IsEmpty]: Start isEmpty. Operand 173067 states and 196002 transitions. [2024-11-21 22:16:41,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 460 [2024-11-21 22:16:41,160 INFO L207 NwaCegarLoop]: Found error trace [2024-11-21 22:16:41,160 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-21 22:16:41,160 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-21 22:16:41,161 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-21 22:16:41,161 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 22:16:41,161 INFO L85 PathProgramCache]: Analyzing trace with hash -1281024426, now seen corresponding path program 1 times [2024-11-21 22:16:41,161 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-21 22:16:41,161 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1903990727] [2024-11-21 22:16:41,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 22:16:41,162 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-21 22:16:41,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 22:16:42,399 INFO L134 CoverageAnalysis]: Checked inductivity of 736 backedges. 432 proven. 110 refuted. 0 times theorem prover too weak. 194 trivial. 0 not checked. [2024-11-21 22:16:42,400 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-21 22:16:42,400 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1903990727] [2024-11-21 22:16:42,400 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1903990727] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-21 22:16:42,400 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1334894361] [2024-11-21 22:16:42,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 22:16:42,400 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-21 22:16:42,400 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-21 22:16:42,402 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) [2024-11-21 22:16:42,404 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-21 22:16:42,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 22:16:42,532 INFO L255 TraceCheckSpWp]: Trace formula consists of 623 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-21 22:16:42,538 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-21 22:16:43,036 INFO L134 CoverageAnalysis]: Checked inductivity of 736 backedges. 429 proven. 0 refuted. 0 times theorem prover too weak. 307 trivial. 0 not checked. [2024-11-21 22:16:43,036 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-21 22:16:43,037 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1334894361] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-21 22:16:43,037 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-21 22:16:43,037 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2024-11-21 22:16:43,037 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [73025297] [2024-11-21 22:16:43,037 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-21 22:16:43,038 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-21 22:16:43,038 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-21 22:16:43,038 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-21 22:16:43,038 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-21 22:16:43,038 INFO L87 Difference]: Start difference. First operand 173067 states and 196002 transitions. Second operand has 3 states, 3 states have (on average 72.66666666666667) internal successors, (218), 2 states have internal predecessors, (218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:16:46,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-21 22:16:46,063 INFO L93 Difference]: Finished difference Result 321743 states and 366469 transitions. [2024-11-21 22:16:46,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-21 22:16:46,064 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 72.66666666666667) internal successors, (218), 2 states have internal predecessors, (218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 459 [2024-11-21 22:16:46,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-21 22:16:46,276 INFO L225 Difference]: With dead ends: 321743 [2024-11-21 22:16:46,276 INFO L226 Difference]: Without dead ends: 178602 [2024-11-21 22:16:46,344 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 463 GetRequests, 458 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-21 22:16:46,345 INFO L432 NwaCegarLoop]: 1049 mSDtfsCounter, 686 mSDsluCounter, 136 mSDsCounter, 0 mSdLazyCounter, 2474 mSolverCounterSat, 115 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 686 SdHoareTripleChecker+Valid, 1185 SdHoareTripleChecker+Invalid, 2589 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 115 IncrementalHoareTripleChecker+Valid, 2474 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-11-21 22:16:46,345 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [686 Valid, 1185 Invalid, 2589 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [115 Valid, 2474 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-11-21 22:16:46,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 178602 states. [2024-11-21 22:16:48,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 178602 to 178584. [2024-11-21 22:16:48,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 178584 states, 178583 states have (on average 1.1295924024123236) internal successors, (201726), 178583 states have internal predecessors, (201726), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:16:48,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178584 states to 178584 states and 201726 transitions. [2024-11-21 22:16:48,891 INFO L78 Accepts]: Start accepts. Automaton has 178584 states and 201726 transitions. Word has length 459 [2024-11-21 22:16:48,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-21 22:16:48,892 INFO L471 AbstractCegarLoop]: Abstraction has 178584 states and 201726 transitions. [2024-11-21 22:16:48,892 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 72.66666666666667) internal successors, (218), 2 states have internal predecessors, (218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:16:48,892 INFO L276 IsEmpty]: Start isEmpty. Operand 178584 states and 201726 transitions. [2024-11-21 22:16:48,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 489 [2024-11-21 22:16:48,902 INFO L207 NwaCegarLoop]: Found error trace [2024-11-21 22:16:48,903 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-21 22:16:48,911 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-21 22:16:49,103 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,SelfDestructingSolverStorable12 [2024-11-21 22:16:49,104 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-21 22:16:49,104 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 22:16:49,105 INFO L85 PathProgramCache]: Analyzing trace with hash 1823682249, now seen corresponding path program 1 times [2024-11-21 22:16:49,105 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-21 22:16:49,105 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1337832660] [2024-11-21 22:16:49,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 22:16:49,105 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-21 22:16:49,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 22:16:50,750 INFO L134 CoverageAnalysis]: Checked inductivity of 814 backedges. 542 proven. 0 refuted. 0 times theorem prover too weak. 272 trivial. 0 not checked. [2024-11-21 22:16:50,751 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-21 22:16:50,751 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1337832660] [2024-11-21 22:16:50,751 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1337832660] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-21 22:16:50,751 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-21 22:16:50,751 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-21 22:16:50,752 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1304761372] [2024-11-21 22:16:50,752 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-21 22:16:50,752 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-21 22:16:50,754 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-21 22:16:50,755 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-21 22:16:50,755 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-21 22:16:50,755 INFO L87 Difference]: Start difference. First operand 178584 states and 201726 transitions. Second operand has 3 states, 3 states have (on average 102.0) internal successors, (306), 3 states have internal predecessors, (306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:16:55,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-21 22:16:55,115 INFO L93 Difference]: Finished difference Result 343737 states and 393111 transitions. [2024-11-21 22:16:55,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-21 22:16:55,116 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 102.0) internal successors, (306), 3 states have internal predecessors, (306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 488 [2024-11-21 22:16:55,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-21 22:16:55,360 INFO L225 Difference]: With dead ends: 343737 [2024-11-21 22:16:55,360 INFO L226 Difference]: Without dead ends: 195079 [2024-11-21 22:16:55,416 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-21 22:16:55,416 INFO L432 NwaCegarLoop]: 405 mSDtfsCounter, 1228 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 2272 mSolverCounterSat, 1155 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1228 SdHoareTripleChecker+Valid, 424 SdHoareTripleChecker+Invalid, 3427 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1155 IncrementalHoareTripleChecker+Valid, 2272 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2024-11-21 22:16:55,416 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1228 Valid, 424 Invalid, 3427 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1155 Valid, 2272 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2024-11-21 22:16:55,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 195079 states. [2024-11-21 22:16:57,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 195079 to 195079. [2024-11-21 22:16:57,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 195079 states, 195078 states have (on average 1.1295430545730425) internal successors, (220349), 195078 states have internal predecessors, (220349), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:16:57,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195079 states to 195079 states and 220349 transitions. [2024-11-21 22:16:57,661 INFO L78 Accepts]: Start accepts. Automaton has 195079 states and 220349 transitions. Word has length 488 [2024-11-21 22:16:57,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-21 22:16:57,662 INFO L471 AbstractCegarLoop]: Abstraction has 195079 states and 220349 transitions. [2024-11-21 22:16:57,662 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 102.0) internal successors, (306), 3 states have internal predecessors, (306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:16:57,662 INFO L276 IsEmpty]: Start isEmpty. Operand 195079 states and 220349 transitions. [2024-11-21 22:16:57,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 496 [2024-11-21 22:16:57,672 INFO L207 NwaCegarLoop]: Found error trace [2024-11-21 22:16:57,672 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-21 22:16:57,672 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-21 22:16:57,673 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-21 22:16:57,673 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 22:16:57,673 INFO L85 PathProgramCache]: Analyzing trace with hash -1347430308, now seen corresponding path program 1 times [2024-11-21 22:16:57,673 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-21 22:16:57,673 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2112203957] [2024-11-21 22:16:57,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 22:16:57,673 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-21 22:16:58,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 22:16:58,482 INFO L134 CoverageAnalysis]: Checked inductivity of 819 backedges. 547 proven. 0 refuted. 0 times theorem prover too weak. 272 trivial. 0 not checked. [2024-11-21 22:16:58,482 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-21 22:16:58,482 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2112203957] [2024-11-21 22:16:58,482 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2112203957] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-21 22:16:58,482 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-21 22:16:58,483 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-21 22:16:58,483 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1312412878] [2024-11-21 22:16:58,483 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-21 22:16:58,483 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-21 22:16:58,483 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-21 22:16:58,484 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-21 22:16:58,484 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-21 22:16:58,484 INFO L87 Difference]: Start difference. First operand 195079 states and 220349 transitions. Second operand has 3 states, 3 states have (on average 104.33333333333333) internal successors, (313), 3 states have internal predecessors, (313), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:17:02,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-21 22:17:02,204 INFO L93 Difference]: Finished difference Result 367115 states and 415229 transitions. [2024-11-21 22:17:02,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-21 22:17:02,204 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 104.33333333333333) internal successors, (313), 3 states have internal predecessors, (313), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 495 [2024-11-21 22:17:02,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-21 22:17:02,428 INFO L225 Difference]: With dead ends: 367115 [2024-11-21 22:17:02,429 INFO L226 Difference]: Without dead ends: 171250 [2024-11-21 22:17:02,511 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-21 22:17:02,512 INFO L432 NwaCegarLoop]: 1491 mSDtfsCounter, 1000 mSDsluCounter, 133 mSDsCounter, 0 mSdLazyCounter, 2342 mSolverCounterSat, 599 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1000 SdHoareTripleChecker+Valid, 1624 SdHoareTripleChecker+Invalid, 2941 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 599 IncrementalHoareTripleChecker+Valid, 2342 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2024-11-21 22:17:02,512 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1000 Valid, 1624 Invalid, 2941 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [599 Valid, 2342 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2024-11-21 22:17:02,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 171250 states. [2024-11-21 22:17:04,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 171250 to 157073. [2024-11-21 22:17:04,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 157073 states, 157072 states have (on average 1.0898186818783742) internal successors, (171180), 157072 states have internal predecessors, (171180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:17:04,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157073 states to 157073 states and 171180 transitions. [2024-11-21 22:17:04,495 INFO L78 Accepts]: Start accepts. Automaton has 157073 states and 171180 transitions. Word has length 495 [2024-11-21 22:17:04,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-21 22:17:04,495 INFO L471 AbstractCegarLoop]: Abstraction has 157073 states and 171180 transitions. [2024-11-21 22:17:04,496 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 104.33333333333333) internal successors, (313), 3 states have internal predecessors, (313), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:17:04,496 INFO L276 IsEmpty]: Start isEmpty. Operand 157073 states and 171180 transitions. [2024-11-21 22:17:04,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 510 [2024-11-21 22:17:04,504 INFO L207 NwaCegarLoop]: Found error trace [2024-11-21 22:17:04,504 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-21 22:17:04,504 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-21 22:17:04,504 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-21 22:17:04,505 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 22:17:04,505 INFO L85 PathProgramCache]: Analyzing trace with hash -1210395816, now seen corresponding path program 1 times [2024-11-21 22:17:04,505 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-21 22:17:04,505 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [534251688] [2024-11-21 22:17:04,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 22:17:04,505 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-21 22:17:04,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 22:17:04,661 INFO L134 CoverageAnalysis]: Checked inductivity of 1071 backedges. 314 proven. 0 refuted. 0 times theorem prover too weak. 757 trivial. 0 not checked. [2024-11-21 22:17:04,662 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-21 22:17:04,662 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [534251688] [2024-11-21 22:17:04,662 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [534251688] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-21 22:17:04,662 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-21 22:17:04,662 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-21 22:17:04,662 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1065232128] [2024-11-21 22:17:04,662 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-21 22:17:04,662 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-21 22:17:04,662 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-21 22:17:04,663 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-21 22:17:04,663 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-21 22:17:04,663 INFO L87 Difference]: Start difference. First operand 157073 states and 171180 transitions. Second operand has 3 states, 3 states have (on average 63.0) internal successors, (189), 3 states have internal predecessors, (189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)