./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem12_label09.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4a390ef5 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 /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem12_label09.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 3266bb9a560f42e93e7f83a070eaa64f467717133c7f2cf6394974f84eb01d92 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4a390ef-m [2024-10-23 21:04:49,534 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-23 21:04:49,618 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-23 21:04:49,623 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-23 21:04:49,624 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-23 21:04:49,659 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-23 21:04:49,659 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-23 21:04:49,660 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-23 21:04:49,661 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-23 21:04:49,662 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-23 21:04:49,663 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-23 21:04:49,663 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-23 21:04:49,664 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-23 21:04:49,664 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-23 21:04:49,665 INFO L153 SettingsManager]: * Use SBE=true [2024-10-23 21:04:49,666 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-23 21:04:49,666 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-23 21:04:49,666 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-23 21:04:49,667 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-23 21:04:49,671 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-23 21:04:49,671 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-23 21:04:49,671 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-23 21:04:49,672 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-23 21:04:49,672 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-23 21:04:49,672 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-23 21:04:49,673 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-23 21:04:49,673 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-23 21:04:49,673 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-23 21:04:49,673 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-23 21:04:49,674 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-23 21:04:49,674 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-23 21:04:49,674 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-23 21:04:49,674 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-23 21:04:49,675 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-23 21:04:49,675 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-23 21:04:49,675 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-23 21:04:49,676 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-23 21:04:49,676 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-23 21:04:49,676 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-23 21:04:49,676 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-23 21:04:49,676 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-23 21:04:49,677 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-23 21:04:49,677 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3266bb9a560f42e93e7f83a070eaa64f467717133c7f2cf6394974f84eb01d92 [2024-10-23 21:04:49,916 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-23 21:04:49,943 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-23 21:04:49,947 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-23 21:04:49,949 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-23 21:04:49,949 INFO L274 PluginConnector]: CDTParser initialized [2024-10-23 21:04:49,950 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem12_label09.c [2024-10-23 21:04:51,416 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-23 21:04:51,824 INFO L384 CDTParser]: Found 1 translation units. [2024-10-23 21:04:51,825 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem12_label09.c [2024-10-23 21:04:51,861 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9c9178f2b/570af1fe50114645bc344cd8be65d023/FLAG4352c37b5 [2024-10-23 21:04:51,876 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9c9178f2b/570af1fe50114645bc344cd8be65d023 [2024-10-23 21:04:51,879 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-23 21:04:51,880 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-23 21:04:51,883 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-23 21:04:51,883 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-23 21:04:51,889 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-23 21:04:51,889 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 09:04:51" (1/1) ... [2024-10-23 21:04:51,890 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@b525527 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:04:51, skipping insertion in model container [2024-10-23 21:04:51,890 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 09:04:51" (1/1) ... [2024-10-23 21:04:51,994 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-23 21:04:52,326 WARN L248 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/Problem12_label09.c[8109,8122] [2024-10-23 21:04:53,042 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-23 21:04:53,054 INFO L200 MainTranslator]: Completed pre-run [2024-10-23 21:04:53,081 WARN L248 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/Problem12_label09.c[8109,8122] [2024-10-23 21:04:53,457 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-23 21:04:53,521 INFO L204 MainTranslator]: Completed translation [2024-10-23 21:04:53,522 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:04:53 WrapperNode [2024-10-23 21:04:53,523 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-23 21:04:53,524 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-23 21:04:53,525 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-23 21:04:53,525 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-23 21:04:53,531 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:04:53" (1/1) ... [2024-10-23 21:04:53,586 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:04:53" (1/1) ... [2024-10-23 21:04:53,914 INFO L138 Inliner]: procedures = 17, calls = 11, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 4761 [2024-10-23 21:04:53,914 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-23 21:04:53,915 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-23 21:04:53,915 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-23 21:04:53,915 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-23 21:04:53,925 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:04:53" (1/1) ... [2024-10-23 21:04:53,926 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:04:53" (1/1) ... [2024-10-23 21:04:54,062 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:04:53" (1/1) ... [2024-10-23 21:04:54,186 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]. [2024-10-23 21:04:54,186 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:04:53" (1/1) ... [2024-10-23 21:04:54,187 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:04:53" (1/1) ... [2024-10-23 21:04:54,313 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:04:53" (1/1) ... [2024-10-23 21:04:54,349 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:04:53" (1/1) ... [2024-10-23 21:04:54,371 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:04:53" (1/1) ... [2024-10-23 21:04:54,390 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:04:53" (1/1) ... [2024-10-23 21:04:54,438 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-23 21:04:54,441 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-23 21:04:54,441 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-23 21:04:54,441 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-23 21:04:54,442 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:04:53" (1/1) ... [2024-10-23 21:04:54,447 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-23 21:04:54,458 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-23 21:04:54,473 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) [2024-10-23 21:04:54,476 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 [2024-10-23 21:04:54,522 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-23 21:04:54,522 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-23 21:04:54,522 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-23 21:04:54,522 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-23 21:04:54,590 INFO L238 CfgBuilder]: Building ICFG [2024-10-23 21:04:54,592 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-23 21:04:58,671 INFO L? ?]: Removed 702 outVars from TransFormulas that were not future-live. [2024-10-23 21:04:58,671 INFO L287 CfgBuilder]: Performing block encoding [2024-10-23 21:04:58,732 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-23 21:04:58,736 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-23 21:04:58,736 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 09:04:58 BoogieIcfgContainer [2024-10-23 21:04:58,736 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-23 21:04:58,738 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-23 21:04:58,738 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-23 21:04:58,742 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-23 21:04:58,742 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.10 09:04:51" (1/3) ... [2024-10-23 21:04:58,742 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ee2659 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 09:04:58, skipping insertion in model container [2024-10-23 21:04:58,743 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:04:53" (2/3) ... [2024-10-23 21:04:58,743 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ee2659 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 09:04:58, skipping insertion in model container [2024-10-23 21:04:58,743 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 09:04:58" (3/3) ... [2024-10-23 21:04:58,745 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem12_label09.c [2024-10-23 21:04:58,761 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-23 21:04:58,762 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-23 21:04:58,851 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-23 21:04:58,859 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;@4a52679c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-23 21:04:58,859 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-23 21:04:58,869 INFO L276 IsEmpty]: Start isEmpty. Operand has 756 states, 754 states have (on average 1.993368700265252) internal successors, (1503), 755 states have internal predecessors, (1503), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:04:58,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-10-23 21:04:58,879 INFO L207 NwaCegarLoop]: Found error trace [2024-10-23 21:04:58,881 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] [2024-10-23 21:04:58,881 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-23 21:04:58,887 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-23 21:04:58,887 INFO L85 PathProgramCache]: Analyzing trace with hash 925616397, now seen corresponding path program 1 times [2024-10-23 21:04:58,896 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-23 21:04:58,897 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1553929348] [2024-10-23 21:04:58,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 21:04:58,897 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-23 21:04:58,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 21:04:59,058 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-23 21:04:59,058 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-23 21:04:59,059 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1553929348] [2024-10-23 21:04:59,059 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1553929348] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-23 21:04:59,060 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-23 21:04:59,060 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-23 21:04:59,061 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [588059978] [2024-10-23 21:04:59,062 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-23 21:04:59,067 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-23 21:04:59,068 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-23 21:04:59,092 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-23 21:04:59,093 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-23 21:04:59,096 INFO L87 Difference]: Start difference. First operand has 756 states, 754 states have (on average 1.993368700265252) internal successors, (1503), 755 states have internal predecessors, (1503), 0 states have call successors, (0), 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 2 states, 2 states have (on average 32.5) 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) [2024-10-23 21:04:59,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-23 21:04:59,188 INFO L93 Difference]: Finished difference Result 1511 states and 3005 transitions. [2024-10-23 21:04:59,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-23 21:04:59,191 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 32.5) 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 [2024-10-23 21:04:59,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-23 21:04:59,206 INFO L225 Difference]: With dead ends: 1511 [2024-10-23 21:04:59,206 INFO L226 Difference]: Without dead ends: 754 [2024-10-23 21:04:59,212 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-23 21:04:59,215 INFO L432 NwaCegarLoop]: 1438 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1438 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-23 21:04:59,219 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1438 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-23 21:04:59,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 754 states. [2024-10-23 21:04:59,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 754 to 754. [2024-10-23 21:04:59,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 754 states, 753 states have (on average 1.9096945551128819) internal successors, (1438), 753 states have internal predecessors, (1438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:04:59,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 754 states to 754 states and 1438 transitions. [2024-10-23 21:04:59,303 INFO L78 Accepts]: Start accepts. Automaton has 754 states and 1438 transitions. Word has length 65 [2024-10-23 21:04:59,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-23 21:04:59,303 INFO L471 AbstractCegarLoop]: Abstraction has 754 states and 1438 transitions. [2024-10-23 21:04:59,303 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 32.5) 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) [2024-10-23 21:04:59,304 INFO L276 IsEmpty]: Start isEmpty. Operand 754 states and 1438 transitions. [2024-10-23 21:04:59,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-10-23 21:04:59,305 INFO L207 NwaCegarLoop]: Found error trace [2024-10-23 21:04:59,309 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] [2024-10-23 21:04:59,309 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-23 21:04:59,309 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-23 21:04:59,310 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-23 21:04:59,310 INFO L85 PathProgramCache]: Analyzing trace with hash 791687097, now seen corresponding path program 1 times [2024-10-23 21:04:59,310 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-23 21:04:59,310 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [815456288] [2024-10-23 21:04:59,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 21:04:59,310 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-23 21:04:59,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 21:04:59,725 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-23 21:04:59,725 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-23 21:04:59,725 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [815456288] [2024-10-23 21:04:59,726 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [815456288] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-23 21:04:59,726 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-23 21:04:59,726 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-23 21:04:59,726 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [306430655] [2024-10-23 21:04:59,726 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-23 21:04:59,729 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-23 21:04:59,731 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-23 21:04:59,733 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-23 21:04:59,733 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-23 21:04:59,734 INFO L87 Difference]: Start difference. First operand 754 states and 1438 transitions. Second operand has 4 states, 4 states have (on average 16.25) internal successors, (65), 3 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) [2024-10-23 21:05:05,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-23 21:05:05,496 INFO L93 Difference]: Finished difference Result 3009 states and 5747 transitions. [2024-10-23 21:05:05,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-23 21:05:05,496 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.25) internal successors, (65), 3 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 [2024-10-23 21:05:05,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-23 21:05:05,505 INFO L225 Difference]: With dead ends: 3009 [2024-10-23 21:05:05,506 INFO L226 Difference]: Without dead ends: 2256 [2024-10-23 21:05:05,508 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-23 21:05:05,510 INFO L432 NwaCegarLoop]: 691 mSDtfsCounter, 2185 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 5155 mSolverCounterSat, 1245 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2185 SdHoareTripleChecker+Valid, 709 SdHoareTripleChecker+Invalid, 6400 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1245 IncrementalHoareTripleChecker+Valid, 5155 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2024-10-23 21:05:05,510 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2185 Valid, 709 Invalid, 6400 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1245 Valid, 5155 Invalid, 0 Unknown, 0 Unchecked, 5.6s Time] [2024-10-23 21:05:05,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2256 states. [2024-10-23 21:05:05,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2256 to 2256. [2024-10-23 21:05:05,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2256 states, 2255 states have (on average 1.5139689578713968) internal successors, (3414), 2255 states have internal predecessors, (3414), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:05:05,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2256 states to 2256 states and 3414 transitions. [2024-10-23 21:05:05,556 INFO L78 Accepts]: Start accepts. Automaton has 2256 states and 3414 transitions. Word has length 65 [2024-10-23 21:05:05,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-23 21:05:05,556 INFO L471 AbstractCegarLoop]: Abstraction has 2256 states and 3414 transitions. [2024-10-23 21:05:05,557 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.25) internal successors, (65), 3 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) [2024-10-23 21:05:05,557 INFO L276 IsEmpty]: Start isEmpty. Operand 2256 states and 3414 transitions. [2024-10-23 21:05:05,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2024-10-23 21:05:05,560 INFO L207 NwaCegarLoop]: Found error trace [2024-10-23 21:05:05,560 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, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-23 21:05:05,560 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-23 21:05:05,561 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-23 21:05:05,561 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-23 21:05:05,561 INFO L85 PathProgramCache]: Analyzing trace with hash -700140278, now seen corresponding path program 1 times [2024-10-23 21:05:05,562 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-23 21:05:05,562 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1615367067] [2024-10-23 21:05:05,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 21:05:05,562 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-23 21:05:05,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 21:05:05,906 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 63 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-23 21:05:05,907 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-23 21:05:05,907 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1615367067] [2024-10-23 21:05:05,907 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1615367067] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-23 21:05:05,907 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-23 21:05:05,907 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-23 21:05:05,907 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2070686329] [2024-10-23 21:05:05,907 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-23 21:05:05,908 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-23 21:05:05,908 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-23 21:05:05,910 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-23 21:05:05,912 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-23 21:05:05,913 INFO L87 Difference]: Start difference. First operand 2256 states and 3414 transitions. Second operand has 4 states, 4 states have (on average 34.0) internal successors, (136), 3 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:05:09,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-23 21:05:09,554 INFO L93 Difference]: Finished difference Result 6050 states and 9519 transitions. [2024-10-23 21:05:09,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-23 21:05:09,555 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 34.0) internal successors, (136), 3 states have internal predecessors, (136), 0 states have call successors, (0), 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 136 [2024-10-23 21:05:09,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-23 21:05:09,569 INFO L225 Difference]: With dead ends: 6050 [2024-10-23 21:05:09,569 INFO L226 Difference]: Without dead ends: 3758 [2024-10-23 21:05:09,573 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 [2024-10-23 21:05:09,574 INFO L432 NwaCegarLoop]: 691 mSDtfsCounter, 703 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 3108 mSolverCounterSat, 729 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 703 SdHoareTripleChecker+Valid, 704 SdHoareTripleChecker+Invalid, 3837 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 729 IncrementalHoareTripleChecker+Valid, 3108 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2024-10-23 21:05:09,575 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [703 Valid, 704 Invalid, 3837 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [729 Valid, 3108 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2024-10-23 21:05:09,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3758 states. [2024-10-23 21:05:09,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3758 to 3758. [2024-10-23 21:05:09,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3758 states, 3757 states have (on average 1.3305829118977908) internal successors, (4999), 3757 states have internal predecessors, (4999), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:05:09,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3758 states to 3758 states and 4999 transitions. [2024-10-23 21:05:09,638 INFO L78 Accepts]: Start accepts. Automaton has 3758 states and 4999 transitions. Word has length 136 [2024-10-23 21:05:09,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-23 21:05:09,639 INFO L471 AbstractCegarLoop]: Abstraction has 3758 states and 4999 transitions. [2024-10-23 21:05:09,640 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 34.0) internal successors, (136), 3 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:05:09,643 INFO L276 IsEmpty]: Start isEmpty. Operand 3758 states and 4999 transitions. [2024-10-23 21:05:09,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 278 [2024-10-23 21:05:09,654 INFO L207 NwaCegarLoop]: Found error trace [2024-10-23 21:05:09,654 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, 3, 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, 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] [2024-10-23 21:05:09,654 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-23 21:05:09,655 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-23 21:05:09,655 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-23 21:05:09,655 INFO L85 PathProgramCache]: Analyzing trace with hash 1910089640, now seen corresponding path program 1 times [2024-10-23 21:05:09,655 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-23 21:05:09,656 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1372164534] [2024-10-23 21:05:09,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 21:05:09,656 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-23 21:05:09,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 21:05:10,158 INFO L134 CoverageAnalysis]: Checked inductivity of 197 backedges. 127 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-10-23 21:05:10,161 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-23 21:05:10,161 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1372164534] [2024-10-23 21:05:10,161 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1372164534] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-23 21:05:10,161 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-23 21:05:10,161 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-23 21:05:10,161 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1351664870] [2024-10-23 21:05:10,162 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-23 21:05:10,162 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-23 21:05:10,163 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-23 21:05:10,163 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-23 21:05:10,163 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-23 21:05:10,164 INFO L87 Difference]: Start difference. First operand 3758 states and 4999 transitions. Second operand has 4 states, 4 states have (on average 52.0) internal successors, (208), 3 states have internal predecessors, (208), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:05:13,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-23 21:05:13,333 INFO L93 Difference]: Finished difference Result 9056 states and 12623 transitions. [2024-10-23 21:05:13,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-23 21:05:13,333 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 52.0) internal successors, (208), 3 states have internal predecessors, (208), 0 states have call successors, (0), 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 277 [2024-10-23 21:05:13,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-23 21:05:13,354 INFO L225 Difference]: With dead ends: 9056 [2024-10-23 21:05:13,355 INFO L226 Difference]: Without dead ends: 5262 [2024-10-23 21:05:13,361 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 [2024-10-23 21:05:13,363 INFO L432 NwaCegarLoop]: 307 mSDtfsCounter, 775 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 3718 mSolverCounterSat, 542 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 775 SdHoareTripleChecker+Valid, 321 SdHoareTripleChecker+Invalid, 4260 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 542 IncrementalHoareTripleChecker+Valid, 3718 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2024-10-23 21:05:13,365 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [775 Valid, 321 Invalid, 4260 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [542 Valid, 3718 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2024-10-23 21:05:13,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5262 states. [2024-10-23 21:05:13,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5262 to 5260. [2024-10-23 21:05:13,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5260 states, 5259 states have (on average 1.3242061228370412) internal successors, (6964), 5259 states have internal predecessors, (6964), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:05:13,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5260 states to 5260 states and 6964 transitions. [2024-10-23 21:05:13,454 INFO L78 Accepts]: Start accepts. Automaton has 5260 states and 6964 transitions. Word has length 277 [2024-10-23 21:05:13,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-23 21:05:13,456 INFO L471 AbstractCegarLoop]: Abstraction has 5260 states and 6964 transitions. [2024-10-23 21:05:13,456 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 52.0) internal successors, (208), 3 states have internal predecessors, (208), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:05:13,456 INFO L276 IsEmpty]: Start isEmpty. Operand 5260 states and 6964 transitions. [2024-10-23 21:05:13,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 292 [2024-10-23 21:05:13,459 INFO L207 NwaCegarLoop]: Found error trace [2024-10-23 21:05:13,460 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, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-23 21:05:13,460 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-23 21:05:13,460 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-23 21:05:13,460 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-23 21:05:13,461 INFO L85 PathProgramCache]: Analyzing trace with hash 1025249157, now seen corresponding path program 1 times [2024-10-23 21:05:13,461 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-23 21:05:13,461 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1919051478] [2024-10-23 21:05:13,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 21:05:13,462 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-23 21:05:13,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 21:05:13,711 INFO L134 CoverageAnalysis]: Checked inductivity of 211 backedges. 211 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-23 21:05:13,711 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-23 21:05:13,711 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1919051478] [2024-10-23 21:05:13,711 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1919051478] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-23 21:05:13,711 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-23 21:05:13,711 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-23 21:05:13,712 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1278711494] [2024-10-23 21:05:13,712 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-23 21:05:13,712 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-23 21:05:13,712 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-23 21:05:13,713 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-23 21:05:13,714 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-23 21:05:13,715 INFO L87 Difference]: Start difference. First operand 5260 states and 6964 transitions. Second operand has 3 states, 3 states have (on average 97.0) internal successors, (291), 3 states have internal predecessors, (291), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:05:16,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-23 21:05:16,400 INFO L93 Difference]: Finished difference Result 15025 states and 20133 transitions. [2024-10-23 21:05:16,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-23 21:05:16,400 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 97.0) internal successors, (291), 3 states have internal predecessors, (291), 0 states have call successors, (0), 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 291 [2024-10-23 21:05:16,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-23 21:05:16,429 INFO L225 Difference]: With dead ends: 15025 [2024-10-23 21:05:16,429 INFO L226 Difference]: Without dead ends: 9766 [2024-10-23 21:05:16,438 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 [2024-10-23 21:05:16,439 INFO L432 NwaCegarLoop]: 1251 mSDtfsCounter, 675 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 2631 mSolverCounterSat, 388 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 675 SdHoareTripleChecker+Valid, 1258 SdHoareTripleChecker+Invalid, 3019 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 388 IncrementalHoareTripleChecker+Valid, 2631 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2024-10-23 21:05:16,439 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [675 Valid, 1258 Invalid, 3019 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [388 Valid, 2631 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2024-10-23 21:05:16,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9766 states. [2024-10-23 21:05:16,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9766 to 9766. [2024-10-23 21:05:16,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9766 states, 9765 states have (on average 1.2974910394265233) internal successors, (12670), 9765 states have internal predecessors, (12670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:05:16,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9766 states to 9766 states and 12670 transitions. [2024-10-23 21:05:16,613 INFO L78 Accepts]: Start accepts. Automaton has 9766 states and 12670 transitions. Word has length 291 [2024-10-23 21:05:16,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-23 21:05:16,614 INFO L471 AbstractCegarLoop]: Abstraction has 9766 states and 12670 transitions. [2024-10-23 21:05:16,615 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 97.0) internal successors, (291), 3 states have internal predecessors, (291), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:05:16,615 INFO L276 IsEmpty]: Start isEmpty. Operand 9766 states and 12670 transitions. [2024-10-23 21:05:16,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 296 [2024-10-23 21:05:16,621 INFO L207 NwaCegarLoop]: Found error trace [2024-10-23 21:05:16,622 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, 3, 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, 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] [2024-10-23 21:05:16,622 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-23 21:05:16,622 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-23 21:05:16,623 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-23 21:05:16,624 INFO L85 PathProgramCache]: Analyzing trace with hash -198815153, now seen corresponding path program 1 times [2024-10-23 21:05:16,624 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-23 21:05:16,625 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1485151615] [2024-10-23 21:05:16,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 21:05:16,625 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-23 21:05:16,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 21:05:16,883 INFO L134 CoverageAnalysis]: Checked inductivity of 211 backedges. 127 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-10-23 21:05:16,883 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-23 21:05:16,884 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1485151615] [2024-10-23 21:05:16,884 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1485151615] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-23 21:05:16,884 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-23 21:05:16,885 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-23 21:05:16,885 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [376268257] [2024-10-23 21:05:16,885 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-23 21:05:16,886 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-23 21:05:16,886 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-23 21:05:16,886 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-23 21:05:16,887 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-23 21:05:16,887 INFO L87 Difference]: Start difference. First operand 9766 states and 12670 transitions. Second operand has 3 states, 3 states have (on average 70.66666666666667) internal successors, (212), 3 states have internal predecessors, (212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:05:19,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-23 21:05:19,849 INFO L93 Difference]: Finished difference Result 25539 states and 33978 transitions. [2024-10-23 21:05:19,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-23 21:05:19,850 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 70.66666666666667) internal successors, (212), 3 states have internal predecessors, (212), 0 states have call successors, (0), 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 295 [2024-10-23 21:05:19,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-23 21:05:19,899 INFO L225 Difference]: With dead ends: 25539 [2024-10-23 21:05:19,899 INFO L226 Difference]: Without dead ends: 15774 [2024-10-23 21:05:19,912 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 [2024-10-23 21:05:19,913 INFO L432 NwaCegarLoop]: 520 mSDtfsCounter, 702 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 2276 mSolverCounterSat, 637 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 702 SdHoareTripleChecker+Valid, 527 SdHoareTripleChecker+Invalid, 2913 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 637 IncrementalHoareTripleChecker+Valid, 2276 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2024-10-23 21:05:19,913 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [702 Valid, 527 Invalid, 2913 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [637 Valid, 2276 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2024-10-23 21:05:19,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15774 states. [2024-10-23 21:05:20,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15774 to 15774. [2024-10-23 21:05:20,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15774 states, 15773 states have (on average 1.2829518797945856) internal successors, (20236), 15773 states have internal predecessors, (20236), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:05:20,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15774 states to 15774 states and 20236 transitions. [2024-10-23 21:05:20,186 INFO L78 Accepts]: Start accepts. Automaton has 15774 states and 20236 transitions. Word has length 295 [2024-10-23 21:05:20,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-23 21:05:20,188 INFO L471 AbstractCegarLoop]: Abstraction has 15774 states and 20236 transitions. [2024-10-23 21:05:20,188 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 70.66666666666667) internal successors, (212), 3 states have internal predecessors, (212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:05:20,188 INFO L276 IsEmpty]: Start isEmpty. Operand 15774 states and 20236 transitions. [2024-10-23 21:05:20,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 304 [2024-10-23 21:05:20,197 INFO L207 NwaCegarLoop]: Found error trace [2024-10-23 21:05:20,197 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, 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, 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, 1, 1, 1, 1] [2024-10-23 21:05:20,197 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-23 21:05:20,198 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-23 21:05:20,198 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-23 21:05:20,198 INFO L85 PathProgramCache]: Analyzing trace with hash -1050476485, now seen corresponding path program 1 times [2024-10-23 21:05:20,198 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-23 21:05:20,199 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1094728039] [2024-10-23 21:05:20,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 21:05:20,199 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-23 21:05:20,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 21:05:20,451 INFO L134 CoverageAnalysis]: Checked inductivity of 219 backedges. 127 proven. 0 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2024-10-23 21:05:20,451 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-23 21:05:20,451 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1094728039] [2024-10-23 21:05:20,452 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1094728039] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-23 21:05:20,452 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-23 21:05:20,452 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-23 21:05:20,452 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1875093823] [2024-10-23 21:05:20,452 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-23 21:05:20,453 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-23 21:05:20,453 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-23 21:05:20,453 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-23 21:05:20,453 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-23 21:05:20,454 INFO L87 Difference]: Start difference. First operand 15774 states and 20236 transitions. Second operand has 3 states, 3 states have (on average 70.66666666666667) internal successors, (212), 2 states have internal predecessors, (212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:05:23,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-23 21:05:23,221 INFO L93 Difference]: Finished difference Result 44314 states and 57481 transitions. [2024-10-23 21:05:23,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-23 21:05:23,222 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 70.66666666666667) internal successors, (212), 2 states have internal predecessors, (212), 0 states have call successors, (0), 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 303 [2024-10-23 21:05:23,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-23 21:05:23,273 INFO L225 Difference]: With dead ends: 44314 [2024-10-23 21:05:23,273 INFO L226 Difference]: Without dead ends: 28541 [2024-10-23 21:05:23,295 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 [2024-10-23 21:05:23,297 INFO L432 NwaCegarLoop]: 415 mSDtfsCounter, 689 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 1968 mSolverCounterSat, 841 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 689 SdHoareTripleChecker+Valid, 421 SdHoareTripleChecker+Invalid, 2809 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 841 IncrementalHoareTripleChecker+Valid, 1968 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2024-10-23 21:05:23,298 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [689 Valid, 421 Invalid, 2809 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [841 Valid, 1968 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2024-10-23 21:05:23,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28541 states. [2024-10-23 21:05:23,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28541 to 25537. [2024-10-23 21:05:23,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25537 states, 25536 states have (on average 1.2187108395989974) internal successors, (31121), 25536 states have internal predecessors, (31121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:05:23,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25537 states to 25537 states and 31121 transitions. [2024-10-23 21:05:23,648 INFO L78 Accepts]: Start accepts. Automaton has 25537 states and 31121 transitions. Word has length 303 [2024-10-23 21:05:23,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-23 21:05:23,649 INFO L471 AbstractCegarLoop]: Abstraction has 25537 states and 31121 transitions. [2024-10-23 21:05:23,649 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 70.66666666666667) internal successors, (212), 2 states have internal predecessors, (212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:05:23,650 INFO L276 IsEmpty]: Start isEmpty. Operand 25537 states and 31121 transitions. [2024-10-23 21:05:23,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 343 [2024-10-23 21:05:23,655 INFO L207 NwaCegarLoop]: Found error trace [2024-10-23 21:05:23,655 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, 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, 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] [2024-10-23 21:05:23,656 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-23 21:05:23,656 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-23 21:05:23,656 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-23 21:05:23,656 INFO L85 PathProgramCache]: Analyzing trace with hash 1087671971, now seen corresponding path program 1 times [2024-10-23 21:05:23,657 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-23 21:05:23,657 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2074168570] [2024-10-23 21:05:23,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 21:05:23,657 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-23 21:05:23,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 21:05:24,252 INFO L134 CoverageAnalysis]: Checked inductivity of 262 backedges. 127 proven. 0 refuted. 0 times theorem prover too weak. 135 trivial. 0 not checked. [2024-10-23 21:05:24,253 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-23 21:05:24,253 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2074168570] [2024-10-23 21:05:24,253 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2074168570] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-23 21:05:24,253 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-23 21:05:24,253 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-23 21:05:24,254 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1597241033] [2024-10-23 21:05:24,254 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-23 21:05:24,255 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-23 21:05:24,255 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-23 21:05:24,256 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-23 21:05:24,256 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-23 21:05:24,256 INFO L87 Difference]: Start difference. First operand 25537 states and 31121 transitions. Second operand has 3 states, 3 states have (on average 69.33333333333333) internal successors, (208), 3 states have internal predecessors, (208), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:05:26,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-23 21:05:26,554 INFO L93 Difference]: Finished difference Result 61587 states and 73942 transitions. [2024-10-23 21:05:26,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-23 21:05:26,554 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 69.33333333333333) internal successors, (208), 3 states have internal predecessors, (208), 0 states have call successors, (0), 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 342 [2024-10-23 21:05:26,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-23 21:05:26,614 INFO L225 Difference]: With dead ends: 61587 [2024-10-23 21:05:26,614 INFO L226 Difference]: Without dead ends: 36051 [2024-10-23 21:05:26,645 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-23 21:05:26,646 INFO L432 NwaCegarLoop]: 200 mSDtfsCounter, 767 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 2319 mSolverCounterSat, 421 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 767 SdHoareTripleChecker+Valid, 207 SdHoareTripleChecker+Invalid, 2740 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 421 IncrementalHoareTripleChecker+Valid, 2319 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-10-23 21:05:26,646 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [767 Valid, 207 Invalid, 2740 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [421 Valid, 2319 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-10-23 21:05:26,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36051 states. [2024-10-23 21:05:27,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36051 to 31545. [2024-10-23 21:05:27,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31545 states, 31544 states have (on average 1.184250570631499) internal successors, (37356), 31544 states have internal predecessors, (37356), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:05:27,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31545 states to 31545 states and 37356 transitions. [2024-10-23 21:05:27,096 INFO L78 Accepts]: Start accepts. Automaton has 31545 states and 37356 transitions. Word has length 342 [2024-10-23 21:05:27,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-23 21:05:27,097 INFO L471 AbstractCegarLoop]: Abstraction has 31545 states and 37356 transitions. [2024-10-23 21:05:27,098 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 69.33333333333333) internal successors, (208), 3 states have internal predecessors, (208), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:05:27,098 INFO L276 IsEmpty]: Start isEmpty. Operand 31545 states and 37356 transitions. [2024-10-23 21:05:27,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 399 [2024-10-23 21:05:27,106 INFO L207 NwaCegarLoop]: Found error trace [2024-10-23 21:05:27,107 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, 4, 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, 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] [2024-10-23 21:05:27,107 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-23 21:05:27,107 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-23 21:05:27,108 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-23 21:05:27,108 INFO L85 PathProgramCache]: Analyzing trace with hash -745314010, now seen corresponding path program 1 times [2024-10-23 21:05:27,108 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-23 21:05:27,108 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1843183044] [2024-10-23 21:05:27,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 21:05:27,109 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-23 21:05:27,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 21:05:27,431 INFO L134 CoverageAnalysis]: Checked inductivity of 456 backedges. 378 proven. 0 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2024-10-23 21:05:27,432 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-23 21:05:27,432 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1843183044] [2024-10-23 21:05:27,433 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1843183044] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-23 21:05:27,433 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-23 21:05:27,433 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-23 21:05:27,433 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1592628575] [2024-10-23 21:05:27,433 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-23 21:05:27,434 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-23 21:05:27,434 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-23 21:05:27,434 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-23 21:05:27,434 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-23 21:05:27,435 INFO L87 Difference]: Start difference. First operand 31545 states and 37356 transitions. Second operand has 3 states, 3 states have (on average 107.0) internal successors, (321), 3 states have internal predecessors, (321), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:05:30,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-23 21:05:30,046 INFO L93 Difference]: Finished difference Result 78860 states and 93955 transitions. [2024-10-23 21:05:30,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-23 21:05:30,047 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 107.0) internal successors, (321), 3 states have internal predecessors, (321), 0 states have call successors, (0), 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 398 [2024-10-23 21:05:30,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-23 21:05:30,108 INFO L225 Difference]: With dead ends: 78860 [2024-10-23 21:05:30,109 INFO L226 Difference]: Without dead ends: 47316 [2024-10-23 21:05:30,126 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 [2024-10-23 21:05:30,126 INFO L432 NwaCegarLoop]: 288 mSDtfsCounter, 668 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 2443 mSolverCounterSat, 462 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 668 SdHoareTripleChecker+Valid, 294 SdHoareTripleChecker+Invalid, 2905 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 462 IncrementalHoareTripleChecker+Valid, 2443 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-10-23 21:05:30,127 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [668 Valid, 294 Invalid, 2905 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [462 Valid, 2443 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-10-23 21:05:30,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47316 states. [2024-10-23 21:05:30,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47316 to 46565. [2024-10-23 21:05:30,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46565 states, 46564 states have (on average 1.1781633880250837) internal successors, (54860), 46564 states have internal predecessors, (54860), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:05:30,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46565 states to 46565 states and 54860 transitions. [2024-10-23 21:05:30,603 INFO L78 Accepts]: Start accepts. Automaton has 46565 states and 54860 transitions. Word has length 398 [2024-10-23 21:05:30,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-23 21:05:30,604 INFO L471 AbstractCegarLoop]: Abstraction has 46565 states and 54860 transitions. [2024-10-23 21:05:30,604 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 107.0) internal successors, (321), 3 states have internal predecessors, (321), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:05:30,605 INFO L276 IsEmpty]: Start isEmpty. Operand 46565 states and 54860 transitions. [2024-10-23 21:05:30,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 405 [2024-10-23 21:05:30,614 INFO L207 NwaCegarLoop]: Found error trace [2024-10-23 21:05:30,614 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, 4, 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, 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] [2024-10-23 21:05:30,614 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-23 21:05:30,614 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-23 21:05:30,619 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-23 21:05:30,619 INFO L85 PathProgramCache]: Analyzing trace with hash -1479748523, now seen corresponding path program 1 times [2024-10-23 21:05:30,619 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-23 21:05:30,619 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1940253278] [2024-10-23 21:05:30,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 21:05:30,619 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-23 21:05:30,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 21:05:30,909 INFO L134 CoverageAnalysis]: Checked inductivity of 468 backedges. 384 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-10-23 21:05:30,910 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-23 21:05:30,910 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1940253278] [2024-10-23 21:05:30,910 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1940253278] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-23 21:05:30,910 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-23 21:05:30,910 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-23 21:05:30,911 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [983522670] [2024-10-23 21:05:30,911 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-23 21:05:30,911 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-23 21:05:30,911 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-23 21:05:30,912 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-23 21:05:30,915 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-23 21:05:30,915 INFO L87 Difference]: Start difference. First operand 46565 states and 54860 transitions. Second operand has 3 states, 3 states have (on average 107.0) internal successors, (321), 3 states have internal predecessors, (321), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:05:33,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-23 21:05:33,788 INFO L93 Difference]: Finished difference Result 112655 states and 134695 transitions. [2024-10-23 21:05:33,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-23 21:05:33,789 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 107.0) internal successors, (321), 3 states have internal predecessors, (321), 0 states have call successors, (0), 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 404 [2024-10-23 21:05:33,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-23 21:05:33,871 INFO L225 Difference]: With dead ends: 112655 [2024-10-23 21:05:33,872 INFO L226 Difference]: Without dead ends: 66091 [2024-10-23 21:05:33,914 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 [2024-10-23 21:05:33,915 INFO L432 NwaCegarLoop]: 1237 mSDtfsCounter, 661 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 2279 mSolverCounterSat, 433 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 661 SdHoareTripleChecker+Valid, 1244 SdHoareTripleChecker+Invalid, 2712 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 433 IncrementalHoareTripleChecker+Valid, 2279 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2024-10-23 21:05:33,915 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [661 Valid, 1244 Invalid, 2712 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [433 Valid, 2279 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2024-10-23 21:05:33,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66091 states. [2024-10-23 21:05:34,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66091 to 66091. [2024-10-23 21:05:34,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66091 states, 66090 states have (on average 1.1514752610077168) internal successors, (76101), 66090 states have internal predecessors, (76101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:05:34,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66091 states to 66091 states and 76101 transitions. [2024-10-23 21:05:34,957 INFO L78 Accepts]: Start accepts. Automaton has 66091 states and 76101 transitions. Word has length 404 [2024-10-23 21:05:34,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-23 21:05:34,957 INFO L471 AbstractCegarLoop]: Abstraction has 66091 states and 76101 transitions. [2024-10-23 21:05:34,961 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 107.0) internal successors, (321), 3 states have internal predecessors, (321), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:05:34,962 INFO L276 IsEmpty]: Start isEmpty. Operand 66091 states and 76101 transitions. [2024-10-23 21:05:34,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 421 [2024-10-23 21:05:34,972 INFO L207 NwaCegarLoop]: Found error trace [2024-10-23 21:05:34,973 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, 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, 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] [2024-10-23 21:05:34,976 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-23 21:05:34,976 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-23 21:05:34,979 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-23 21:05:34,979 INFO L85 PathProgramCache]: Analyzing trace with hash 1079190221, now seen corresponding path program 1 times [2024-10-23 21:05:34,979 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-23 21:05:34,979 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [247753289] [2024-10-23 21:05:34,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 21:05:34,979 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-23 21:05:35,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 21:05:35,541 INFO L134 CoverageAnalysis]: Checked inductivity of 492 backedges. 376 proven. 0 refuted. 0 times theorem prover too weak. 116 trivial. 0 not checked. [2024-10-23 21:05:35,542 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-23 21:05:35,542 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [247753289] [2024-10-23 21:05:35,542 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [247753289] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-23 21:05:35,542 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-23 21:05:35,543 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-23 21:05:35,543 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [862366796] [2024-10-23 21:05:35,543 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-23 21:05:35,543 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-23 21:05:35,543 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-23 21:05:35,544 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-23 21:05:35,544 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-23 21:05:35,544 INFO L87 Difference]: Start difference. First operand 66091 states and 76101 transitions. Second operand has 3 states, 3 states have (on average 101.66666666666667) internal successors, (305), 3 states have internal predecessors, (305), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:05:38,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-23 21:05:38,281 INFO L93 Difference]: Finished difference Result 150956 states and 176238 transitions. [2024-10-23 21:05:38,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-23 21:05:38,282 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 101.66666666666667) internal successors, (305), 3 states have internal predecessors, (305), 0 states have call successors, (0), 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 420 [2024-10-23 21:05:38,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-23 21:05:38,378 INFO L225 Difference]: With dead ends: 150956 [2024-10-23 21:05:38,378 INFO L226 Difference]: Without dead ends: 84866 [2024-10-23 21:05:38,420 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 [2024-10-23 21:05:38,420 INFO L432 NwaCegarLoop]: 1272 mSDtfsCounter, 673 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 2234 mSolverCounterSat, 446 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 673 SdHoareTripleChecker+Valid, 1279 SdHoareTripleChecker+Invalid, 2680 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 446 IncrementalHoareTripleChecker+Valid, 2234 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-10-23 21:05:38,420 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [673 Valid, 1279 Invalid, 2680 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [446 Valid, 2234 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-10-23 21:05:38,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84866 states. [2024-10-23 21:05:39,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84866 to 84866. [2024-10-23 21:05:39,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84866 states, 84865 states have (on average 1.134825899958758) internal successors, (96307), 84865 states have internal predecessors, (96307), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:05:39,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84866 states to 84866 states and 96307 transitions. [2024-10-23 21:05:39,605 INFO L78 Accepts]: Start accepts. Automaton has 84866 states and 96307 transitions. Word has length 420 [2024-10-23 21:05:39,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-23 21:05:39,606 INFO L471 AbstractCegarLoop]: Abstraction has 84866 states and 96307 transitions. [2024-10-23 21:05:39,606 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 101.66666666666667) internal successors, (305), 3 states have internal predecessors, (305), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:05:39,606 INFO L276 IsEmpty]: Start isEmpty. Operand 84866 states and 96307 transitions. [2024-10-23 21:05:39,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 425 [2024-10-23 21:05:39,613 INFO L207 NwaCegarLoop]: Found error trace [2024-10-23 21:05:39,613 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, 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, 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] [2024-10-23 21:05:39,614 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-23 21:05:39,614 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-23 21:05:39,614 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-23 21:05:39,615 INFO L85 PathProgramCache]: Analyzing trace with hash -8906557, now seen corresponding path program 1 times [2024-10-23 21:05:39,615 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-23 21:05:39,615 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1719068936] [2024-10-23 21:05:39,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 21:05:39,615 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-23 21:05:39,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 21:05:40,694 INFO L134 CoverageAnalysis]: Checked inductivity of 500 backedges. 285 proven. 99 refuted. 0 times theorem prover too weak. 116 trivial. 0 not checked. [2024-10-23 21:05:40,694 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-23 21:05:40,694 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1719068936] [2024-10-23 21:05:40,694 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1719068936] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-23 21:05:40,694 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1861848775] [2024-10-23 21:05:40,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 21:05:40,695 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-23 21:05:40,695 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-23 21:05:40,697 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) [2024-10-23 21:05:40,698 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-23 21:05:40,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 21:05:40,899 INFO L255 TraceCheckSpWp]: Trace formula consists of 549 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-23 21:05:40,911 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-23 21:05:41,042 INFO L134 CoverageAnalysis]: Checked inductivity of 500 backedges. 191 proven. 0 refuted. 0 times theorem prover too weak. 309 trivial. 0 not checked. [2024-10-23 21:05:41,043 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-23 21:05:41,043 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1861848775] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-23 21:05:41,043 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-23 21:05:41,043 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 9 [2024-10-23 21:05:41,044 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [474704744] [2024-10-23 21:05:41,044 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-23 21:05:41,044 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-23 21:05:41,045 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-23 21:05:41,045 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-23 21:05:41,045 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2024-10-23 21:05:41,045 INFO L87 Difference]: Start difference. First operand 84866 states and 96307 transitions. Second operand has 3 states, 3 states have (on average 71.0) internal successors, (213), 3 states have internal predecessors, (213), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:05:43,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-23 21:05:43,923 INFO L93 Difference]: Finished difference Result 169731 states and 192613 transitions. [2024-10-23 21:05:43,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-23 21:05:43,923 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 71.0) internal successors, (213), 3 states have internal predecessors, (213), 0 states have call successors, (0), 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 424 [2024-10-23 21:05:43,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-23 21:05:44,012 INFO L225 Difference]: With dead ends: 169731 [2024-10-23 21:05:44,012 INFO L226 Difference]: Without dead ends: 84866 [2024-10-23 21:05:44,041 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 430 GetRequests, 423 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2024-10-23 21:05:44,042 INFO L432 NwaCegarLoop]: 1181 mSDtfsCounter, 718 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 2404 mSolverCounterSat, 508 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 718 SdHoareTripleChecker+Valid, 1188 SdHoareTripleChecker+Invalid, 2912 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 508 IncrementalHoareTripleChecker+Valid, 2404 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-10-23 21:05:44,042 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [718 Valid, 1188 Invalid, 2912 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [508 Valid, 2404 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-10-23 21:05:44,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84866 states. [2024-10-23 21:05:44,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84866 to 81862. [2024-10-23 21:05:44,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81862 states, 81861 states have (on average 1.1201304650566204) internal successors, (91695), 81861 states have internal predecessors, (91695), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:05:45,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81862 states to 81862 states and 91695 transitions. [2024-10-23 21:05:45,266 INFO L78 Accepts]: Start accepts. Automaton has 81862 states and 91695 transitions. Word has length 424 [2024-10-23 21:05:45,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-23 21:05:45,266 INFO L471 AbstractCegarLoop]: Abstraction has 81862 states and 91695 transitions. [2024-10-23 21:05:45,266 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 71.0) internal successors, (213), 3 states have internal predecessors, (213), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:05:45,266 INFO L276 IsEmpty]: Start isEmpty. Operand 81862 states and 91695 transitions. [2024-10-23 21:05:45,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 540 [2024-10-23 21:05:45,296 INFO L207 NwaCegarLoop]: Found error trace [2024-10-23 21:05:45,296 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, 5, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-23 21:05:45,336 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-10-23 21:05:45,497 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,SelfDestructingSolverStorable11 [2024-10-23 21:05:45,497 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-23 21:05:45,498 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-23 21:05:45,498 INFO L85 PathProgramCache]: Analyzing trace with hash 2025521414, now seen corresponding path program 1 times [2024-10-23 21:05:45,498 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-23 21:05:45,498 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1772014566] [2024-10-23 21:05:45,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 21:05:45,498 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-23 21:05:45,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 21:05:45,996 INFO L134 CoverageAnalysis]: Checked inductivity of 836 backedges. 583 proven. 0 refuted. 0 times theorem prover too weak. 253 trivial. 0 not checked. [2024-10-23 21:05:45,997 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-23 21:05:45,997 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1772014566] [2024-10-23 21:05:45,997 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1772014566] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-23 21:05:45,997 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-23 21:05:45,997 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-23 21:05:45,998 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [14337221] [2024-10-23 21:05:45,998 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-23 21:05:45,998 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-23 21:05:45,998 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-23 21:05:45,999 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-23 21:05:45,999 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-23 21:05:46,000 INFO L87 Difference]: Start difference. First operand 81862 states and 91695 transitions. Second operand has 3 states, 3 states have (on average 118.66666666666667) internal successors, (356), 3 states have internal predecessors, (356), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:05:48,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-23 21:05:48,946 INFO L93 Difference]: Finished difference Result 204277 states and 228095 transitions. [2024-10-23 21:05:48,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-23 21:05:48,946 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 118.66666666666667) internal successors, (356), 3 states have internal predecessors, (356), 0 states have call successors, (0), 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 539 [2024-10-23 21:05:48,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-23 21:05:49,095 INFO L225 Difference]: With dead ends: 204277 [2024-10-23 21:05:49,095 INFO L226 Difference]: Without dead ends: 117159 [2024-10-23 21:05:49,154 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 [2024-10-23 21:05:49,155 INFO L432 NwaCegarLoop]: 1300 mSDtfsCounter, 648 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 2226 mSolverCounterSat, 417 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 648 SdHoareTripleChecker+Valid, 1307 SdHoareTripleChecker+Invalid, 2643 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 417 IncrementalHoareTripleChecker+Valid, 2226 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-10-23 21:05:49,155 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [648 Valid, 1307 Invalid, 2643 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [417 Valid, 2226 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-10-23 21:05:49,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117159 states. [2024-10-23 21:05:50,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117159 to 115657. [2024-10-23 21:05:50,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 115657 states, 115656 states have (on average 1.0992685204399253) internal successors, (127137), 115656 states have internal predecessors, (127137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:05:50,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115657 states to 115657 states and 127137 transitions. [2024-10-23 21:05:50,573 INFO L78 Accepts]: Start accepts. Automaton has 115657 states and 127137 transitions. Word has length 539 [2024-10-23 21:05:50,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-23 21:05:50,573 INFO L471 AbstractCegarLoop]: Abstraction has 115657 states and 127137 transitions. [2024-10-23 21:05:50,573 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 118.66666666666667) internal successors, (356), 3 states have internal predecessors, (356), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:05:50,573 INFO L276 IsEmpty]: Start isEmpty. Operand 115657 states and 127137 transitions. [2024-10-23 21:05:50,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 568 [2024-10-23 21:05:50,584 INFO L207 NwaCegarLoop]: Found error trace [2024-10-23 21:05:50,585 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, 5, 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, 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] [2024-10-23 21:05:50,585 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-23 21:05:50,585 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-23 21:05:50,585 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-23 21:05:50,586 INFO L85 PathProgramCache]: Analyzing trace with hash -1342252490, now seen corresponding path program 1 times [2024-10-23 21:05:50,586 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-23 21:05:50,586 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [114364809] [2024-10-23 21:05:50,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 21:05:50,586 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-23 21:05:50,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 21:05:52,062 INFO L134 CoverageAnalysis]: Checked inductivity of 870 backedges. 577 proven. 229 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2024-10-23 21:05:52,062 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-23 21:05:52,063 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [114364809] [2024-10-23 21:05:52,063 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [114364809] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-23 21:05:52,063 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [478546428] [2024-10-23 21:05:52,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 21:05:52,063 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-23 21:05:52,063 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-23 21:05:52,065 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) [2024-10-23 21:05:52,067 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-23 21:05:52,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 21:05:52,284 INFO L255 TraceCheckSpWp]: Trace formula consists of 719 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-23 21:05:52,293 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-23 21:05:52,457 INFO L134 CoverageAnalysis]: Checked inductivity of 870 backedges. 557 proven. 0 refuted. 0 times theorem prover too weak. 313 trivial. 0 not checked. [2024-10-23 21:05:52,458 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-23 21:05:52,458 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [478546428] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-23 21:05:52,458 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-23 21:05:52,459 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2024-10-23 21:05:52,459 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1830551518] [2024-10-23 21:05:52,459 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-23 21:05:52,460 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-23 21:05:52,460 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-23 21:05:52,461 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-23 21:05:52,461 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-10-23 21:05:52,461 INFO L87 Difference]: Start difference. First operand 115657 states and 127137 transitions. Second operand has 3 states, 3 states have (on average 113.33333333333333) internal successors, (340), 3 states have internal predecessors, (340), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:05:55,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-23 21:05:55,486 INFO L93 Difference]: Finished difference Result 230562 states and 253517 transitions. [2024-10-23 21:05:55,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-23 21:05:55,486 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 113.33333333333333) internal successors, (340), 3 states have internal predecessors, (340), 0 states have call successors, (0), 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 567 [2024-10-23 21:05:55,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-23 21:05:55,620 INFO L225 Difference]: With dead ends: 230562 [2024-10-23 21:05:55,620 INFO L226 Difference]: Without dead ends: 115657 [2024-10-23 21:05:55,676 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 571 GetRequests, 566 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-10-23 21:05:55,677 INFO L432 NwaCegarLoop]: 1292 mSDtfsCounter, 680 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 2083 mSolverCounterSat, 544 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 680 SdHoareTripleChecker+Valid, 1299 SdHoareTripleChecker+Invalid, 2627 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 544 IncrementalHoareTripleChecker+Valid, 2083 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-10-23 21:05:55,677 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [680 Valid, 1299 Invalid, 2627 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [544 Valid, 2083 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-10-23 21:05:55,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115657 states. [2024-10-23 21:05:57,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115657 to 111151. [2024-10-23 21:05:57,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111151 states, 111150 states have (on average 1.0641565452091768) internal successors, (118281), 111150 states have internal predecessors, (118281), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:05:57,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111151 states to 111151 states and 118281 transitions. [2024-10-23 21:05:57,241 INFO L78 Accepts]: Start accepts. Automaton has 111151 states and 118281 transitions. Word has length 567 [2024-10-23 21:05:57,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-23 21:05:57,241 INFO L471 AbstractCegarLoop]: Abstraction has 111151 states and 118281 transitions. [2024-10-23 21:05:57,242 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 113.33333333333333) internal successors, (340), 3 states have internal predecessors, (340), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:05:57,242 INFO L276 IsEmpty]: Start isEmpty. Operand 111151 states and 118281 transitions. [2024-10-23 21:05:57,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 596 [2024-10-23 21:05:57,255 INFO L207 NwaCegarLoop]: Found error trace [2024-10-23 21:05:57,255 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, 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, 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, 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] [2024-10-23 21:05:57,267 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-10-23 21:05:57,456 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,SelfDestructingSolverStorable13 [2024-10-23 21:05:57,456 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-23 21:05:57,456 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-23 21:05:57,457 INFO L85 PathProgramCache]: Analyzing trace with hash 100165660, now seen corresponding path program 1 times [2024-10-23 21:05:57,457 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-23 21:05:57,457 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [720948945] [2024-10-23 21:05:57,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 21:05:57,457 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-23 21:05:57,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 21:05:57,845 INFO L134 CoverageAnalysis]: Checked inductivity of 958 backedges. 733 proven. 0 refuted. 0 times theorem prover too weak. 225 trivial. 0 not checked. [2024-10-23 21:05:57,846 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-23 21:05:57,846 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [720948945] [2024-10-23 21:05:57,846 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [720948945] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-23 21:05:57,846 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-23 21:05:57,847 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-23 21:05:57,847 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1125139157] [2024-10-23 21:05:57,847 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-23 21:05:57,847 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-23 21:05:57,848 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-23 21:05:57,848 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-23 21:05:57,848 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-23 21:05:57,849 INFO L87 Difference]: Start difference. First operand 111151 states and 118281 transitions. Second operand has 3 states, 3 states have (on average 124.0) internal successors, (372), 3 states have internal predecessors, (372), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:06:01,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-23 21:06:01,113 INFO L93 Difference]: Finished difference Result 226056 states and 240398 transitions. [2024-10-23 21:06:01,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-23 21:06:01,113 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 124.0) internal successors, (372), 3 states have internal predecessors, (372), 0 states have call successors, (0), 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 595 [2024-10-23 21:06:01,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-23 21:06:01,270 INFO L225 Difference]: With dead ends: 226056 [2024-10-23 21:06:01,270 INFO L226 Difference]: Without dead ends: 115657 [2024-10-23 21:06:01,322 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 [2024-10-23 21:06:01,323 INFO L432 NwaCegarLoop]: 1173 mSDtfsCounter, 680 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 2075 mSolverCounterSat, 591 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 680 SdHoareTripleChecker+Valid, 1179 SdHoareTripleChecker+Invalid, 2666 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 591 IncrementalHoareTripleChecker+Valid, 2075 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2024-10-23 21:06:01,323 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [680 Valid, 1179 Invalid, 2666 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [591 Valid, 2075 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2024-10-23 21:06:01,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115657 states. [2024-10-23 21:06:02,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115657 to 108147. [2024-10-23 21:06:02,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 108147 states, 108146 states have (on average 1.0461228339467017) internal successors, (113134), 108146 states have internal predecessors, (113134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:06:02,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108147 states to 108147 states and 113134 transitions. [2024-10-23 21:06:02,734 INFO L78 Accepts]: Start accepts. Automaton has 108147 states and 113134 transitions. Word has length 595 [2024-10-23 21:06:02,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-23 21:06:02,735 INFO L471 AbstractCegarLoop]: Abstraction has 108147 states and 113134 transitions. [2024-10-23 21:06:02,735 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 124.0) internal successors, (372), 3 states have internal predecessors, (372), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:06:02,735 INFO L276 IsEmpty]: Start isEmpty. Operand 108147 states and 113134 transitions. [2024-10-23 21:06:02,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 644 [2024-10-23 21:06:02,753 INFO L207 NwaCegarLoop]: Found error trace [2024-10-23 21:06:02,753 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, 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, 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, 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] [2024-10-23 21:06:02,753 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-10-23 21:06:02,753 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-23 21:06:02,754 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-23 21:06:02,754 INFO L85 PathProgramCache]: Analyzing trace with hash 94838410, now seen corresponding path program 1 times [2024-10-23 21:06:02,754 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-23 21:06:02,754 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1007296382] [2024-10-23 21:06:02,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 21:06:02,754 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-23 21:06:02,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 21:06:03,446 INFO L134 CoverageAnalysis]: Checked inductivity of 1034 backedges. 255 proven. 0 refuted. 0 times theorem prover too weak. 779 trivial. 0 not checked. [2024-10-23 21:06:03,446 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-23 21:06:03,450 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1007296382] [2024-10-23 21:06:03,450 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1007296382] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-23 21:06:03,450 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-23 21:06:03,451 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-23 21:06:03,451 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1044599876] [2024-10-23 21:06:03,451 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-23 21:06:03,451 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-23 21:06:03,451 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-23 21:06:03,452 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-23 21:06:03,452 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-23 21:06:03,452 INFO L87 Difference]: Start difference. First operand 108147 states and 113134 transitions. Second operand has 3 states, 3 states have (on average 80.66666666666667) internal successors, (242), 3 states have internal predecessors, (242), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)