./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/combinations/pals_lcr.6.ufo.UNBOUNDED.pals+Problem12_label07.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3061b6dc Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/combinations/pals_lcr.6.ufo.UNBOUNDED.pals+Problem12_label07.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 2ebc8d28b42c51bdeaffef49b8259d7ab2c7e002b024bef1fa6cab620a98975e --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-18 16:09:18,761 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-18 16:09:18,838 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-18 16:09:18,844 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-18 16:09:18,846 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-18 16:09:18,875 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-18 16:09:18,877 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-18 16:09:18,877 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-18 16:09:18,878 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-18 16:09:18,882 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-18 16:09:18,882 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-18 16:09:18,882 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-18 16:09:18,883 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-18 16:09:18,883 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-18 16:09:18,883 INFO L153 SettingsManager]: * Use SBE=true [2024-11-18 16:09:18,883 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-18 16:09:18,884 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-18 16:09:18,884 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-18 16:09:18,885 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-18 16:09:18,885 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-18 16:09:18,885 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-18 16:09:18,886 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-18 16:09:18,886 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-18 16:09:18,886 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-18 16:09:18,887 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-18 16:09:18,888 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-18 16:09:18,888 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-18 16:09:18,888 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-18 16:09:18,888 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-18 16:09:18,889 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-18 16:09:18,889 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-18 16:09:18,889 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-18 16:09:18,890 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 16:09:18,890 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-18 16:09:18,891 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-18 16:09:18,891 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-18 16:09:18,891 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-18 16:09:18,891 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-18 16:09:18,892 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-18 16:09:18,892 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-18 16:09:18,892 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-18 16:09:18,892 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-18 16:09:18,892 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2ebc8d28b42c51bdeaffef49b8259d7ab2c7e002b024bef1fa6cab620a98975e [2024-11-18 16:09:19,174 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-18 16:09:19,195 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-18 16:09:19,199 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-18 16:09:19,200 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-18 16:09:19,201 INFO L274 PluginConnector]: CDTParser initialized [2024-11-18 16:09:19,202 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/combinations/pals_lcr.6.ufo.UNBOUNDED.pals+Problem12_label07.c [2024-11-18 16:09:20,614 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-18 16:09:21,088 INFO L384 CDTParser]: Found 1 translation units. [2024-11-18 16:09:21,090 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pals_lcr.6.ufo.UNBOUNDED.pals+Problem12_label07.c [2024-11-18 16:09:21,136 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/574ad6d03/7e87285ad8cd4f318f25eeee17aa8820/FLAGdc77bb97a [2024-11-18 16:09:21,156 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/574ad6d03/7e87285ad8cd4f318f25eeee17aa8820 [2024-11-18 16:09:21,159 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-18 16:09:21,160 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-18 16:09:21,164 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-18 16:09:21,164 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-18 16:09:21,169 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-18 16:09:21,170 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 04:09:21" (1/1) ... [2024-11-18 16:09:21,171 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2f6f7ebf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:09:21, skipping insertion in model container [2024-11-18 16:09:21,171 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 04:09:21" (1/1) ... [2024-11-18 16:09:21,293 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-18 16:09:21,747 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pals_lcr.6.ufo.UNBOUNDED.pals+Problem12_label07.c[15510,15523] [2024-11-18 16:09:21,766 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pals_lcr.6.ufo.UNBOUNDED.pals+Problem12_label07.c[16352,16365] [2024-11-18 16:09:22,619 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 16:09:22,634 INFO L200 MainTranslator]: Completed pre-run [2024-11-18 16:09:22,683 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pals_lcr.6.ufo.UNBOUNDED.pals+Problem12_label07.c[15510,15523] [2024-11-18 16:09:22,687 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pals_lcr.6.ufo.UNBOUNDED.pals+Problem12_label07.c[16352,16365] [2024-11-18 16:09:23,063 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 16:09:23,097 INFO L204 MainTranslator]: Completed translation [2024-11-18 16:09:23,098 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:09:23 WrapperNode [2024-11-18 16:09:23,099 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-18 16:09:23,100 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-18 16:09:23,100 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-18 16:09:23,100 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-18 16:09:23,107 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:09:23" (1/1) ... [2024-11-18 16:09:23,165 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:09:23" (1/1) ... [2024-11-18 16:09:23,481 INFO L138 Inliner]: procedures = 38, calls = 23, calls flagged for inlining = 18, calls inlined = 18, statements flattened = 5157 [2024-11-18 16:09:23,481 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-18 16:09:23,482 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-18 16:09:23,482 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-18 16:09:23,482 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-18 16:09:23,493 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:09:23" (1/1) ... [2024-11-18 16:09:23,494 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:09:23" (1/1) ... [2024-11-18 16:09:23,543 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:09:23" (1/1) ... [2024-11-18 16:09:23,734 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-18 16:09:23,735 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:09:23" (1/1) ... [2024-11-18 16:09:23,735 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:09:23" (1/1) ... [2024-11-18 16:09:23,878 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:09:23" (1/1) ... [2024-11-18 16:09:23,911 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:09:23" (1/1) ... [2024-11-18 16:09:23,940 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:09:23" (1/1) ... [2024-11-18 16:09:23,958 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:09:23" (1/1) ... [2024-11-18 16:09:24,021 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-18 16:09:24,022 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-18 16:09:24,023 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-18 16:09:24,023 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-18 16:09:24,024 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:09:23" (1/1) ... [2024-11-18 16:09:24,029 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 16:09:24,040 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 16:09:24,056 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-18 16:09:24,062 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-18 16:09:24,103 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-18 16:09:24,103 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-18 16:09:24,103 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-18 16:09:24,103 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-18 16:09:24,203 INFO L238 CfgBuilder]: Building ICFG [2024-11-18 16:09:24,206 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-18 16:09:28,325 INFO L? ?]: Removed 749 outVars from TransFormulas that were not future-live. [2024-11-18 16:09:28,325 INFO L287 CfgBuilder]: Performing block encoding [2024-11-18 16:09:28,363 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-18 16:09:28,363 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-18 16:09:28,364 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 04:09:28 BoogieIcfgContainer [2024-11-18 16:09:28,364 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-18 16:09:28,366 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-18 16:09:28,366 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-18 16:09:28,369 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-18 16:09:28,369 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 04:09:21" (1/3) ... [2024-11-18 16:09:28,370 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@143e53e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 04:09:28, skipping insertion in model container [2024-11-18 16:09:28,370 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:09:23" (2/3) ... [2024-11-18 16:09:28,371 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@143e53e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 04:09:28, skipping insertion in model container [2024-11-18 16:09:28,371 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 04:09:28" (3/3) ... [2024-11-18 16:09:28,372 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr.6.ufo.UNBOUNDED.pals+Problem12_label07.c [2024-11-18 16:09:28,388 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-18 16:09:28,388 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-18 16:09:28,488 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-18 16:09:28,496 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;@24561d0e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-18 16:09:28,497 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-18 16:09:28,506 INFO L276 IsEmpty]: Start isEmpty. Operand has 916 states, 913 states have (on average 1.9036144578313252) internal successors, (1738), 915 states have internal predecessors, (1738), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:09:28,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-11-18 16:09:28,511 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:09:28,512 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-18 16:09:28,512 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:09:28,517 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:09:28,517 INFO L85 PathProgramCache]: Analyzing trace with hash -2039413055, now seen corresponding path program 1 times [2024-11-18 16:09:28,525 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 16:09:28,526 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1712284162] [2024-11-18 16:09:28,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:09:28,527 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 16:09:28,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:09:28,792 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 16:09:28,793 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 16:09:28,793 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1712284162] [2024-11-18 16:09:28,794 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1712284162] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 16:09:28,794 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 16:09:28,795 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-18 16:09:28,796 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [277162335] [2024-11-18 16:09:28,797 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 16:09:28,801 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 16:09:28,801 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 16:09:28,824 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 16:09:28,825 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 16:09:28,829 INFO L87 Difference]: Start difference. First operand has 916 states, 913 states have (on average 1.9036144578313252) internal successors, (1738), 915 states have internal predecessors, (1738), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:09:32,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 16:09:32,106 INFO L93 Difference]: Finished difference Result 2539 states and 4888 transitions. [2024-11-18 16:09:32,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 16:09:32,108 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 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 7 [2024-11-18 16:09:32,109 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 16:09:32,138 INFO L225 Difference]: With dead ends: 2539 [2024-11-18 16:09:32,139 INFO L226 Difference]: Without dead ends: 1601 [2024-11-18 16:09:32,149 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 16:09:32,154 INFO L432 NwaCegarLoop]: 638 mSDtfsCounter, 994 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 2334 mSolverCounterSat, 651 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 994 SdHoareTripleChecker+Valid, 649 SdHoareTripleChecker+Invalid, 2985 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 651 IncrementalHoareTripleChecker+Valid, 2334 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2024-11-18 16:09:32,155 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [994 Valid, 649 Invalid, 2985 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [651 Valid, 2334 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2024-11-18 16:09:32,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1601 states. [2024-11-18 16:09:32,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1601 to 1601. [2024-11-18 16:09:32,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1601 states, 1599 states have (on average 1.6460287679799874) internal successors, (2632), 1600 states have internal predecessors, (2632), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:09:32,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1601 states to 1601 states and 2632 transitions. [2024-11-18 16:09:32,272 INFO L78 Accepts]: Start accepts. Automaton has 1601 states and 2632 transitions. Word has length 7 [2024-11-18 16:09:32,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 16:09:32,273 INFO L471 AbstractCegarLoop]: Abstraction has 1601 states and 2632 transitions. [2024-11-18 16:09:32,273 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:09:32,273 INFO L276 IsEmpty]: Start isEmpty. Operand 1601 states and 2632 transitions. [2024-11-18 16:09:32,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2024-11-18 16:09:32,276 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:09:32,276 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] [2024-11-18 16:09:32,276 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-18 16:09:32,277 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:09:32,277 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:09:32,278 INFO L85 PathProgramCache]: Analyzing trace with hash 1448421831, now seen corresponding path program 1 times [2024-11-18 16:09:32,278 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 16:09:32,279 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [966931572] [2024-11-18 16:09:32,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:09:32,279 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 16:09:32,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:09:32,566 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 16:09:32,567 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 16:09:32,567 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [966931572] [2024-11-18 16:09:32,567 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [966931572] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 16:09:32,567 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 16:09:32,567 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 16:09:32,568 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [270470957] [2024-11-18 16:09:32,568 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 16:09:32,569 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 16:09:32,569 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 16:09:32,570 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 16:09:32,570 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-18 16:09:32,572 INFO L87 Difference]: Start difference. First operand 1601 states and 2632 transitions. Second operand has 5 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:09:32,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 16:09:32,658 INFO L93 Difference]: Finished difference Result 1655 states and 2716 transitions. [2024-11-18 16:09:32,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-18 16:09:32,659 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 0 states have call successors, (0), 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 26 [2024-11-18 16:09:32,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 16:09:32,665 INFO L225 Difference]: With dead ends: 1655 [2024-11-18 16:09:32,666 INFO L226 Difference]: Without dead ends: 1601 [2024-11-18 16:09:32,666 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-18 16:09:32,668 INFO L432 NwaCegarLoop]: 1603 mSDtfsCounter, 0 mSDsluCounter, 4764 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 6367 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 16:09:32,668 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 6367 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 16:09:32,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1601 states. [2024-11-18 16:09:32,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1601 to 1601. [2024-11-18 16:09:32,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1601 states, 1599 states have (on average 1.6210131332082551) internal successors, (2592), 1600 states have internal predecessors, (2592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:09:32,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1601 states to 1601 states and 2592 transitions. [2024-11-18 16:09:32,697 INFO L78 Accepts]: Start accepts. Automaton has 1601 states and 2592 transitions. Word has length 26 [2024-11-18 16:09:32,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 16:09:32,698 INFO L471 AbstractCegarLoop]: Abstraction has 1601 states and 2592 transitions. [2024-11-18 16:09:32,699 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:09:32,699 INFO L276 IsEmpty]: Start isEmpty. Operand 1601 states and 2592 transitions. [2024-11-18 16:09:32,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-18 16:09:32,701 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:09:32,701 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 16:09:32,701 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-18 16:09:32,701 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:09:32,704 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:09:32,706 INFO L85 PathProgramCache]: Analyzing trace with hash -295358701, now seen corresponding path program 1 times [2024-11-18 16:09:32,706 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 16:09:32,706 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [708743013] [2024-11-18 16:09:32,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:09:32,707 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 16:09:32,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:09:32,982 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 16:09:32,983 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 16:09:32,985 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [708743013] [2024-11-18 16:09:32,985 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [708743013] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 16:09:32,985 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 16:09:32,985 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-18 16:09:32,985 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1814922161] [2024-11-18 16:09:32,985 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 16:09:32,986 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-18 16:09:32,986 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 16:09:32,986 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-18 16:09:32,987 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-18 16:09:32,987 INFO L87 Difference]: Start difference. First operand 1601 states and 2592 transitions. Second operand has 8 states, 8 states have (on average 8.125) internal successors, (65), 8 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:09:33,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 16:09:33,306 INFO L93 Difference]: Finished difference Result 2201 states and 3552 transitions. [2024-11-18 16:09:33,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-18 16:09:33,307 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.125) internal successors, (65), 8 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 65 [2024-11-18 16:09:33,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 16:09:33,316 INFO L225 Difference]: With dead ends: 2201 [2024-11-18 16:09:33,316 INFO L226 Difference]: Without dead ends: 2151 [2024-11-18 16:09:33,317 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=91, Invalid=181, Unknown=0, NotChecked=0, Total=272 [2024-11-18 16:09:33,318 INFO L432 NwaCegarLoop]: 1559 mSDtfsCounter, 9855 mSDsluCounter, 1526 mSDsCounter, 0 mSdLazyCounter, 154 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9855 SdHoareTripleChecker+Valid, 3085 SdHoareTripleChecker+Invalid, 167 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 154 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 16:09:33,318 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [9855 Valid, 3085 Invalid, 167 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 154 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 16:09:33,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2151 states. [2024-11-18 16:09:33,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2151 to 1649. [2024-11-18 16:09:33,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1649 states, 1647 states have (on average 1.620522161505768) internal successors, (2669), 1648 states have internal predecessors, (2669), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:09:33,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1649 states to 1649 states and 2669 transitions. [2024-11-18 16:09:33,355 INFO L78 Accepts]: Start accepts. Automaton has 1649 states and 2669 transitions. Word has length 65 [2024-11-18 16:09:33,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 16:09:33,358 INFO L471 AbstractCegarLoop]: Abstraction has 1649 states and 2669 transitions. [2024-11-18 16:09:33,358 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.125) internal successors, (65), 8 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:09:33,359 INFO L276 IsEmpty]: Start isEmpty. Operand 1649 states and 2669 transitions. [2024-11-18 16:09:33,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-11-18 16:09:33,360 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:09:33,361 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, 1, 1] [2024-11-18 16:09:33,361 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-18 16:09:33,361 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:09:33,363 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:09:33,363 INFO L85 PathProgramCache]: Analyzing trace with hash -1787564125, now seen corresponding path program 1 times [2024-11-18 16:09:33,363 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 16:09:33,364 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [708994447] [2024-11-18 16:09:33,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:09:33,364 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 16:09:33,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:09:33,473 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 16:09:33,474 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 16:09:33,475 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [708994447] [2024-11-18 16:09:33,475 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [708994447] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 16:09:33,475 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 16:09:33,475 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 16:09:33,475 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1237777353] [2024-11-18 16:09:33,475 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 16:09:33,476 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 16:09:33,476 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 16:09:33,476 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 16:09:33,477 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 16:09:33,477 INFO L87 Difference]: Start difference. First operand 1649 states and 2669 transitions. Second operand has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:09:33,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 16:09:33,519 INFO L93 Difference]: Finished difference Result 1834 states and 2964 transitions. [2024-11-18 16:09:33,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 16:09:33,520 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 0 states have call successors, (0), 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 67 [2024-11-18 16:09:33,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 16:09:33,527 INFO L225 Difference]: With dead ends: 1834 [2024-11-18 16:09:33,527 INFO L226 Difference]: Without dead ends: 1736 [2024-11-18 16:09:33,530 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 16:09:33,531 INFO L432 NwaCegarLoop]: 1561 mSDtfsCounter, 1492 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1492 SdHoareTripleChecker+Valid, 1634 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 16:09:33,533 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1492 Valid, 1634 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 16:09:33,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1736 states. [2024-11-18 16:09:33,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1736 to 1732. [2024-11-18 16:09:33,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1732 states, 1730 states have (on average 1.6179190751445087) internal successors, (2799), 1731 states have internal predecessors, (2799), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:09:33,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1732 states to 1732 states and 2799 transitions. [2024-11-18 16:09:33,568 INFO L78 Accepts]: Start accepts. Automaton has 1732 states and 2799 transitions. Word has length 67 [2024-11-18 16:09:33,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 16:09:33,568 INFO L471 AbstractCegarLoop]: Abstraction has 1732 states and 2799 transitions. [2024-11-18 16:09:33,571 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:09:33,571 INFO L276 IsEmpty]: Start isEmpty. Operand 1732 states and 2799 transitions. [2024-11-18 16:09:33,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-11-18 16:09:33,573 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:09:33,573 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, 1, 1] [2024-11-18 16:09:33,574 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-18 16:09:33,574 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:09:33,574 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:09:33,574 INFO L85 PathProgramCache]: Analyzing trace with hash -1721070613, now seen corresponding path program 1 times [2024-11-18 16:09:33,575 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 16:09:33,575 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1899462660] [2024-11-18 16:09:33,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:09:33,575 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 16:09:33,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:09:34,013 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 16:09:34,014 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 16:09:34,014 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1899462660] [2024-11-18 16:09:34,014 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1899462660] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 16:09:34,015 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 16:09:34,015 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-18 16:09:34,015 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1003628439] [2024-11-18 16:09:34,015 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 16:09:34,016 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-18 16:09:34,016 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 16:09:34,016 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-18 16:09:34,016 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-11-18 16:09:34,017 INFO L87 Difference]: Start difference. First operand 1732 states and 2799 transitions. Second operand has 8 states, 8 states have (on average 8.375) internal successors, (67), 8 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:09:34,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 16:09:34,264 INFO L93 Difference]: Finished difference Result 1915 states and 3087 transitions. [2024-11-18 16:09:34,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-18 16:09:34,265 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.375) internal successors, (67), 8 states have internal predecessors, (67), 0 states have call successors, (0), 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 67 [2024-11-18 16:09:34,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 16:09:34,271 INFO L225 Difference]: With dead ends: 1915 [2024-11-18 16:09:34,272 INFO L226 Difference]: Without dead ends: 1734 [2024-11-18 16:09:34,274 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=50, Invalid=82, Unknown=0, NotChecked=0, Total=132 [2024-11-18 16:09:34,275 INFO L432 NwaCegarLoop]: 1557 mSDtfsCounter, 9010 mSDsluCounter, 383 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9010 SdHoareTripleChecker+Valid, 1940 SdHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 16:09:34,276 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [9010 Valid, 1940 Invalid, 91 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 16:09:34,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1734 states. [2024-11-18 16:09:34,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1734 to 1732. [2024-11-18 16:09:34,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1732 states, 1730 states have (on average 1.6167630057803468) internal successors, (2797), 1731 states have internal predecessors, (2797), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:09:34,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1732 states to 1732 states and 2797 transitions. [2024-11-18 16:09:34,308 INFO L78 Accepts]: Start accepts. Automaton has 1732 states and 2797 transitions. Word has length 67 [2024-11-18 16:09:34,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 16:09:34,309 INFO L471 AbstractCegarLoop]: Abstraction has 1732 states and 2797 transitions. [2024-11-18 16:09:34,309 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.375) internal successors, (67), 8 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:09:34,309 INFO L276 IsEmpty]: Start isEmpty. Operand 1732 states and 2797 transitions. [2024-11-18 16:09:34,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-11-18 16:09:34,312 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:09:34,312 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, 1, 1, 1] [2024-11-18 16:09:34,312 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-18 16:09:34,313 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:09:34,313 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:09:34,313 INFO L85 PathProgramCache]: Analyzing trace with hash 2066662853, now seen corresponding path program 1 times [2024-11-18 16:09:34,313 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 16:09:34,313 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [331016219] [2024-11-18 16:09:34,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:09:34,314 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 16:09:34,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:09:34,539 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 16:09:34,539 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 16:09:34,539 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [331016219] [2024-11-18 16:09:34,540 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [331016219] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 16:09:34,540 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 16:09:34,540 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 16:09:34,540 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2021929747] [2024-11-18 16:09:34,540 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 16:09:34,541 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 16:09:34,541 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 16:09:34,541 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 16:09:34,542 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-18 16:09:34,542 INFO L87 Difference]: Start difference. First operand 1732 states and 2797 transitions. Second operand has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:09:34,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 16:09:34,588 INFO L93 Difference]: Finished difference Result 1740 states and 2806 transitions. [2024-11-18 16:09:34,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-18 16:09:34,589 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 0 states have call successors, (0), 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 68 [2024-11-18 16:09:34,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 16:09:34,595 INFO L225 Difference]: With dead ends: 1740 [2024-11-18 16:09:34,596 INFO L226 Difference]: Without dead ends: 1738 [2024-11-18 16:09:34,596 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-18 16:09:34,597 INFO L432 NwaCegarLoop]: 1562 mSDtfsCounter, 0 mSDsluCounter, 4677 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 6239 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 16:09:34,597 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 6239 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 16:09:34,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1738 states. [2024-11-18 16:09:34,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1738 to 1738. [2024-11-18 16:09:34,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1738 states, 1736 states have (on average 1.6140552995391706) internal successors, (2802), 1737 states have internal predecessors, (2802), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:09:34,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1738 states to 1738 states and 2802 transitions. [2024-11-18 16:09:34,629 INFO L78 Accepts]: Start accepts. Automaton has 1738 states and 2802 transitions. Word has length 68 [2024-11-18 16:09:34,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 16:09:34,630 INFO L471 AbstractCegarLoop]: Abstraction has 1738 states and 2802 transitions. [2024-11-18 16:09:34,630 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:09:34,630 INFO L276 IsEmpty]: Start isEmpty. Operand 1738 states and 2802 transitions. [2024-11-18 16:09:34,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-18 16:09:34,631 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:09:34,631 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, 1, 1, 1, 1] [2024-11-18 16:09:34,632 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-18 16:09:34,632 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:09:34,632 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:09:34,632 INFO L85 PathProgramCache]: Analyzing trace with hash 279342091, now seen corresponding path program 1 times [2024-11-18 16:09:34,632 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 16:09:34,633 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2142856983] [2024-11-18 16:09:34,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:09:34,633 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 16:09:34,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:09:34,694 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 16:09:34,694 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 16:09:34,695 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2142856983] [2024-11-18 16:09:34,695 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2142856983] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 16:09:34,695 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 16:09:34,695 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 16:09:34,695 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [986635111] [2024-11-18 16:09:34,695 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 16:09:34,696 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 16:09:34,696 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 16:09:34,696 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 16:09:34,696 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 16:09:34,697 INFO L87 Difference]: Start difference. First operand 1738 states and 2802 transitions. Second operand has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:09:34,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 16:09:34,733 INFO L93 Difference]: Finished difference Result 2096 states and 3354 transitions. [2024-11-18 16:09:34,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 16:09:34,734 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 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 69 [2024-11-18 16:09:34,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 16:09:34,742 INFO L225 Difference]: With dead ends: 2096 [2024-11-18 16:09:34,742 INFO L226 Difference]: Without dead ends: 1909 [2024-11-18 16:09:34,743 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 16:09:34,744 INFO L432 NwaCegarLoop]: 1612 mSDtfsCounter, 1505 mSDsluCounter, 89 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1505 SdHoareTripleChecker+Valid, 1701 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 16:09:34,744 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1505 Valid, 1701 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 16:09:34,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1909 states. [2024-11-18 16:09:34,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1909 to 1907. [2024-11-18 16:09:34,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1907 states, 1905 states have (on average 1.6057742782152231) internal successors, (3059), 1906 states have internal predecessors, (3059), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:09:34,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1907 states to 1907 states and 3059 transitions. [2024-11-18 16:09:34,788 INFO L78 Accepts]: Start accepts. Automaton has 1907 states and 3059 transitions. Word has length 69 [2024-11-18 16:09:34,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 16:09:34,789 INFO L471 AbstractCegarLoop]: Abstraction has 1907 states and 3059 transitions. [2024-11-18 16:09:34,789 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:09:34,789 INFO L276 IsEmpty]: Start isEmpty. Operand 1907 states and 3059 transitions. [2024-11-18 16:09:34,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-18 16:09:34,790 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:09:34,791 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, 1, 1, 1, 1] [2024-11-18 16:09:34,791 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-18 16:09:34,791 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:09:34,791 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:09:34,792 INFO L85 PathProgramCache]: Analyzing trace with hash 1517604107, now seen corresponding path program 1 times [2024-11-18 16:09:34,792 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 16:09:34,792 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1003146696] [2024-11-18 16:09:34,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:09:34,792 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 16:09:34,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:09:34,872 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 16:09:34,872 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 16:09:34,872 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1003146696] [2024-11-18 16:09:34,872 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1003146696] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 16:09:34,872 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 16:09:34,872 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 16:09:34,872 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1708814115] [2024-11-18 16:09:34,872 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 16:09:34,873 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 16:09:34,873 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 16:09:34,873 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 16:09:34,873 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 16:09:34,873 INFO L87 Difference]: Start difference. First operand 1907 states and 3059 transitions. Second operand has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:09:34,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 16:09:34,914 INFO L93 Difference]: Finished difference Result 2587 states and 4097 transitions. [2024-11-18 16:09:34,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 16:09:34,915 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 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 69 [2024-11-18 16:09:34,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 16:09:34,925 INFO L225 Difference]: With dead ends: 2587 [2024-11-18 16:09:34,926 INFO L226 Difference]: Without dead ends: 2231 [2024-11-18 16:09:34,927 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 16:09:34,929 INFO L432 NwaCegarLoop]: 1610 mSDtfsCounter, 1503 mSDsluCounter, 93 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1503 SdHoareTripleChecker+Valid, 1703 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 16:09:34,929 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1503 Valid, 1703 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 16:09:34,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2231 states. [2024-11-18 16:09:34,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2231 to 2229. [2024-11-18 16:09:34,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2229 states, 2227 states have (on average 1.5900314324202964) internal successors, (3541), 2228 states have internal predecessors, (3541), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:09:34,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2229 states to 2229 states and 3541 transitions. [2024-11-18 16:09:34,984 INFO L78 Accepts]: Start accepts. Automaton has 2229 states and 3541 transitions. Word has length 69 [2024-11-18 16:09:34,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 16:09:34,984 INFO L471 AbstractCegarLoop]: Abstraction has 2229 states and 3541 transitions. [2024-11-18 16:09:34,984 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:09:34,985 INFO L276 IsEmpty]: Start isEmpty. Operand 2229 states and 3541 transitions. [2024-11-18 16:09:34,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-18 16:09:34,985 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:09:34,986 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, 1, 1, 1, 1] [2024-11-18 16:09:34,986 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-18 16:09:34,986 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:09:34,986 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:09:34,987 INFO L85 PathProgramCache]: Analyzing trace with hash -697864693, now seen corresponding path program 1 times [2024-11-18 16:09:34,987 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 16:09:34,987 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1758264492] [2024-11-18 16:09:34,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:09:34,987 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 16:09:35,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:09:35,051 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 16:09:35,052 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 16:09:35,052 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1758264492] [2024-11-18 16:09:35,052 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1758264492] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 16:09:35,052 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 16:09:35,052 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 16:09:35,052 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [695932495] [2024-11-18 16:09:35,053 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 16:09:35,053 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 16:09:35,053 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 16:09:35,054 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 16:09:35,054 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 16:09:35,054 INFO L87 Difference]: Start difference. First operand 2229 states and 3541 transitions. Second operand has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:09:35,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 16:09:35,100 INFO L93 Difference]: Finished difference Result 3521 states and 5487 transitions. [2024-11-18 16:09:35,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 16:09:35,101 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 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 69 [2024-11-18 16:09:35,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 16:09:35,112 INFO L225 Difference]: With dead ends: 3521 [2024-11-18 16:09:35,112 INFO L226 Difference]: Without dead ends: 2843 [2024-11-18 16:09:35,114 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 16:09:35,115 INFO L432 NwaCegarLoop]: 1608 mSDtfsCounter, 1501 mSDsluCounter, 97 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1501 SdHoareTripleChecker+Valid, 1705 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 16:09:35,115 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1501 Valid, 1705 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 16:09:35,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2843 states. [2024-11-18 16:09:35,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2843 to 2841. [2024-11-18 16:09:35,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2841 states, 2839 states have (on average 1.5642831983092638) internal successors, (4441), 2840 states have internal predecessors, (4441), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:09:35,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2841 states to 2841 states and 4441 transitions. [2024-11-18 16:09:35,186 INFO L78 Accepts]: Start accepts. Automaton has 2841 states and 4441 transitions. Word has length 69 [2024-11-18 16:09:35,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 16:09:35,187 INFO L471 AbstractCegarLoop]: Abstraction has 2841 states and 4441 transitions. [2024-11-18 16:09:35,187 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:09:35,187 INFO L276 IsEmpty]: Start isEmpty. Operand 2841 states and 4441 transitions. [2024-11-18 16:09:35,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-18 16:09:35,188 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:09:35,188 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, 1, 1, 1, 1] [2024-11-18 16:09:35,188 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-18 16:09:35,189 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:09:35,189 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:09:35,189 INFO L85 PathProgramCache]: Analyzing trace with hash 1083068171, now seen corresponding path program 1 times [2024-11-18 16:09:35,189 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 16:09:35,189 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [29602260] [2024-11-18 16:09:35,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:09:35,190 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 16:09:35,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:09:35,250 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 16:09:35,251 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 16:09:35,251 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [29602260] [2024-11-18 16:09:35,251 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [29602260] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 16:09:35,251 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 16:09:35,251 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 16:09:35,251 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2103771987] [2024-11-18 16:09:35,251 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 16:09:35,252 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 16:09:35,252 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 16:09:35,252 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 16:09:35,252 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 16:09:35,253 INFO L87 Difference]: Start difference. First operand 2841 states and 4441 transitions. Second operand has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:09:35,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 16:09:35,355 INFO L93 Difference]: Finished difference Result 5293 states and 8075 transitions. [2024-11-18 16:09:35,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 16:09:35,356 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 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 69 [2024-11-18 16:09:35,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 16:09:35,371 INFO L225 Difference]: With dead ends: 5293 [2024-11-18 16:09:35,371 INFO L226 Difference]: Without dead ends: 4003 [2024-11-18 16:09:35,374 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 16:09:35,375 INFO L432 NwaCegarLoop]: 1606 mSDtfsCounter, 1499 mSDsluCounter, 101 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1499 SdHoareTripleChecker+Valid, 1707 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 16:09:35,376 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1499 Valid, 1707 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 16:09:35,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4003 states. [2024-11-18 16:09:35,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4003 to 4001. [2024-11-18 16:09:35,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4001 states, 3999 states have (on average 1.52863215803951) internal successors, (6113), 4000 states have internal predecessors, (6113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:09:35,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4001 states to 4001 states and 6113 transitions. [2024-11-18 16:09:35,474 INFO L78 Accepts]: Start accepts. Automaton has 4001 states and 6113 transitions. Word has length 69 [2024-11-18 16:09:35,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 16:09:35,475 INFO L471 AbstractCegarLoop]: Abstraction has 4001 states and 6113 transitions. [2024-11-18 16:09:35,475 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:09:35,475 INFO L276 IsEmpty]: Start isEmpty. Operand 4001 states and 6113 transitions. [2024-11-18 16:09:35,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-18 16:09:35,476 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:09:35,476 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, 1, 1, 1, 1] [2024-11-18 16:09:35,476 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-18 16:09:35,476 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:09:35,477 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:09:35,477 INFO L85 PathProgramCache]: Analyzing trace with hash 15485707, now seen corresponding path program 1 times [2024-11-18 16:09:35,477 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 16:09:35,477 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [262754354] [2024-11-18 16:09:35,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:09:35,478 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 16:09:35,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:09:35,534 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 16:09:35,534 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 16:09:35,534 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [262754354] [2024-11-18 16:09:35,534 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [262754354] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 16:09:35,535 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 16:09:35,535 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 16:09:35,535 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2127349006] [2024-11-18 16:09:35,535 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 16:09:35,535 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 16:09:35,535 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 16:09:35,536 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 16:09:35,536 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 16:09:35,536 INFO L87 Difference]: Start difference. First operand 4001 states and 6113 transitions. Second operand has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:09:35,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 16:09:35,629 INFO L93 Difference]: Finished difference Result 8645 states and 12867 transitions. [2024-11-18 16:09:35,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 16:09:35,630 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 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 69 [2024-11-18 16:09:35,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 16:09:35,653 INFO L225 Difference]: With dead ends: 8645 [2024-11-18 16:09:35,653 INFO L226 Difference]: Without dead ends: 6195 [2024-11-18 16:09:35,659 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 16:09:35,659 INFO L432 NwaCegarLoop]: 1622 mSDtfsCounter, 1507 mSDsluCounter, 85 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1507 SdHoareTripleChecker+Valid, 1707 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 16:09:35,660 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1507 Valid, 1707 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 16:09:35,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6195 states. [2024-11-18 16:09:35,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6195 to 6193. [2024-11-18 16:09:35,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6193 states, 6191 states have (on average 1.4861896301082216) internal successors, (9201), 6192 states have internal predecessors, (9201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:09:35,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6193 states to 6193 states and 9201 transitions. [2024-11-18 16:09:35,844 INFO L78 Accepts]: Start accepts. Automaton has 6193 states and 9201 transitions. Word has length 69 [2024-11-18 16:09:35,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 16:09:35,844 INFO L471 AbstractCegarLoop]: Abstraction has 6193 states and 9201 transitions. [2024-11-18 16:09:35,844 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:09:35,845 INFO L276 IsEmpty]: Start isEmpty. Operand 6193 states and 9201 transitions. [2024-11-18 16:09:35,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2024-11-18 16:09:35,845 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:09:35,845 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, 1, 1, 1, 1, 1, 1] [2024-11-18 16:09:35,846 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-18 16:09:35,846 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:09:35,846 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:09:35,846 INFO L85 PathProgramCache]: Analyzing trace with hash -2036636858, now seen corresponding path program 1 times [2024-11-18 16:09:35,846 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 16:09:35,847 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [991092326] [2024-11-18 16:09:35,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:09:35,847 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 16:09:35,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:09:35,907 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 16:09:35,908 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 16:09:35,908 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [991092326] [2024-11-18 16:09:35,908 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [991092326] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 16:09:35,908 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 16:09:35,908 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 16:09:35,908 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [130676919] [2024-11-18 16:09:35,909 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 16:09:35,909 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 16:09:35,909 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 16:09:35,910 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 16:09:35,910 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 16:09:35,913 INFO L87 Difference]: Start difference. First operand 6193 states and 9201 transitions. Second operand has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:09:36,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 16:09:36,066 INFO L93 Difference]: Finished difference Result 11064 states and 16311 transitions. [2024-11-18 16:09:36,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 16:09:36,067 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 71 [2024-11-18 16:09:36,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 16:09:36,086 INFO L225 Difference]: With dead ends: 11064 [2024-11-18 16:09:36,086 INFO L226 Difference]: Without dead ends: 8437 [2024-11-18 16:09:36,092 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 16:09:36,093 INFO L432 NwaCegarLoop]: 1627 mSDtfsCounter, 1506 mSDsluCounter, 81 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1506 SdHoareTripleChecker+Valid, 1708 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 16:09:36,093 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1506 Valid, 1708 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 16:09:36,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8437 states. [2024-11-18 16:09:36,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8437 to 8435. [2024-11-18 16:09:36,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8435 states, 8433 states have (on average 1.4669749792481916) internal successors, (12371), 8434 states have internal predecessors, (12371), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:09:36,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8435 states to 8435 states and 12371 transitions. [2024-11-18 16:09:36,321 INFO L78 Accepts]: Start accepts. Automaton has 8435 states and 12371 transitions. Word has length 71 [2024-11-18 16:09:36,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 16:09:36,322 INFO L471 AbstractCegarLoop]: Abstraction has 8435 states and 12371 transitions. [2024-11-18 16:09:36,323 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:09:36,323 INFO L276 IsEmpty]: Start isEmpty. Operand 8435 states and 12371 transitions. [2024-11-18 16:09:36,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-11-18 16:09:36,324 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:09:36,324 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-18 16:09:36,324 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-18 16:09:36,324 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:09:36,325 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:09:36,325 INFO L85 PathProgramCache]: Analyzing trace with hash 672935197, now seen corresponding path program 1 times [2024-11-18 16:09:36,325 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 16:09:36,325 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [478209706] [2024-11-18 16:09:36,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:09:36,325 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 16:09:36,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:09:36,462 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-18 16:09:36,462 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 16:09:36,462 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [478209706] [2024-11-18 16:09:36,463 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [478209706] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 16:09:36,463 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 16:09:36,463 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-18 16:09:36,463 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [874666029] [2024-11-18 16:09:36,463 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 16:09:36,464 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 16:09:36,464 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 16:09:36,465 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 16:09:36,465 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 16:09:36,465 INFO L87 Difference]: Start difference. First operand 8435 states and 12371 transitions. Second operand has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 2 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:09:39,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 16:09:39,849 INFO L93 Difference]: Finished difference Result 11441 states and 17298 transitions. [2024-11-18 16:09:39,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 16:09:39,849 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 2 states have internal predecessors, (76), 0 states have call successors, (0), 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 78 [2024-11-18 16:09:39,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 16:09:39,870 INFO L225 Difference]: With dead ends: 11441 [2024-11-18 16:09:39,871 INFO L226 Difference]: Without dead ends: 9937 [2024-11-18 16:09:39,877 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 16:09:39,877 INFO L432 NwaCegarLoop]: 594 mSDtfsCounter, 851 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 2261 mSolverCounterSat, 652 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 851 SdHoareTripleChecker+Valid, 601 SdHoareTripleChecker+Invalid, 2913 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 652 IncrementalHoareTripleChecker+Valid, 2261 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2024-11-18 16:09:39,878 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [851 Valid, 601 Invalid, 2913 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [652 Valid, 2261 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2024-11-18 16:09:39,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9937 states. [2024-11-18 16:09:40,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9937 to 9937. [2024-11-18 16:09:40,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9937 states, 9935 states have (on average 1.4283844992450931) internal successors, (14191), 9936 states have internal predecessors, (14191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:09:40,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9937 states to 9937 states and 14191 transitions. [2024-11-18 16:09:40,145 INFO L78 Accepts]: Start accepts. Automaton has 9937 states and 14191 transitions. Word has length 78 [2024-11-18 16:09:40,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 16:09:40,145 INFO L471 AbstractCegarLoop]: Abstraction has 9937 states and 14191 transitions. [2024-11-18 16:09:40,146 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 2 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:09:40,146 INFO L276 IsEmpty]: Start isEmpty. Operand 9937 states and 14191 transitions. [2024-11-18 16:09:40,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-11-18 16:09:40,147 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:09:40,147 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 1, 1] [2024-11-18 16:09:40,147 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-18 16:09:40,148 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:09:40,148 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:09:40,148 INFO L85 PathProgramCache]: Analyzing trace with hash 1821639251, now seen corresponding path program 1 times [2024-11-18 16:09:40,148 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 16:09:40,148 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [381340454] [2024-11-18 16:09:40,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:09:40,149 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 16:09:40,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:09:40,368 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 16:09:40,368 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 16:09:40,368 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [381340454] [2024-11-18 16:09:40,368 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [381340454] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 16:09:40,369 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 16:09:40,369 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-18 16:09:40,369 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1049749582] [2024-11-18 16:09:40,369 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 16:09:40,369 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 16:09:40,370 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 16:09:40,370 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 16:09:40,370 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 16:09:40,370 INFO L87 Difference]: Start difference. First operand 9937 states and 14191 transitions. Second operand has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 2 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:09:43,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 16:09:43,387 INFO L93 Difference]: Finished difference Result 15949 states and 22759 transitions. [2024-11-18 16:09:43,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 16:09:43,388 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 2 states have internal predecessors, (82), 0 states have call successors, (0), 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 82 [2024-11-18 16:09:43,388 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 16:09:43,413 INFO L225 Difference]: With dead ends: 15949 [2024-11-18 16:09:43,413 INFO L226 Difference]: Without dead ends: 12943 [2024-11-18 16:09:43,423 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 16:09:43,424 INFO L432 NwaCegarLoop]: 702 mSDtfsCounter, 1041 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 2380 mSolverCounterSat, 550 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1041 SdHoareTripleChecker+Valid, 709 SdHoareTripleChecker+Invalid, 2930 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 550 IncrementalHoareTripleChecker+Valid, 2380 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2024-11-18 16:09:43,424 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1041 Valid, 709 Invalid, 2930 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [550 Valid, 2380 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2024-11-18 16:09:43,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12943 states. [2024-11-18 16:09:43,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12943 to 12941. [2024-11-18 16:09:43,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12941 states, 12939 states have (on average 1.382796197542314) internal successors, (17892), 12940 states have internal predecessors, (17892), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:09:43,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12941 states to 12941 states and 17892 transitions. [2024-11-18 16:09:43,734 INFO L78 Accepts]: Start accepts. Automaton has 12941 states and 17892 transitions. Word has length 82 [2024-11-18 16:09:43,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 16:09:43,734 INFO L471 AbstractCegarLoop]: Abstraction has 12941 states and 17892 transitions. [2024-11-18 16:09:43,735 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 2 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:09:43,735 INFO L276 IsEmpty]: Start isEmpty. Operand 12941 states and 17892 transitions. [2024-11-18 16:09:43,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-11-18 16:09:43,739 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:09:43,739 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-18 16:09:43,740 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-18 16:09:43,740 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:09:43,740 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:09:43,740 INFO L85 PathProgramCache]: Analyzing trace with hash -1790597010, now seen corresponding path program 1 times [2024-11-18 16:09:43,740 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 16:09:43,741 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1042342686] [2024-11-18 16:09:43,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:09:43,741 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 16:09:43,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:09:43,931 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-18 16:09:43,932 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 16:09:43,932 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1042342686] [2024-11-18 16:09:43,932 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1042342686] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 16:09:43,932 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 16:09:43,932 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-18 16:09:43,932 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1029762127] [2024-11-18 16:09:43,932 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 16:09:43,933 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-18 16:09:43,933 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 16:09:43,933 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-18 16:09:43,933 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-18 16:09:43,934 INFO L87 Difference]: Start difference. First operand 12941 states and 17892 transitions. Second operand has 8 states, 8 states have (on average 10.625) internal successors, (85), 8 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:09:44,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 16:09:44,790 INFO L93 Difference]: Finished difference Result 55675 states and 79019 transitions. [2024-11-18 16:09:44,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-18 16:09:44,791 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.625) internal successors, (85), 8 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 90 [2024-11-18 16:09:44,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 16:09:44,883 INFO L225 Difference]: With dead ends: 55675 [2024-11-18 16:09:44,883 INFO L226 Difference]: Without dead ends: 48793 [2024-11-18 16:09:44,914 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2024-11-18 16:09:44,915 INFO L432 NwaCegarLoop]: 1642 mSDtfsCounter, 8109 mSDsluCounter, 2226 mSDsCounter, 0 mSdLazyCounter, 117 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8109 SdHoareTripleChecker+Valid, 3868 SdHoareTripleChecker+Invalid, 122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 16:09:44,916 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8109 Valid, 3868 Invalid, 122 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 117 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 16:09:44,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48793 states. [2024-11-18 16:09:45,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48793 to 19821. [2024-11-18 16:09:45,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19821 states, 19819 states have (on average 1.3952268025631969) internal successors, (27652), 19820 states have internal predecessors, (27652), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:09:45,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19821 states to 19821 states and 27652 transitions. [2024-11-18 16:09:45,694 INFO L78 Accepts]: Start accepts. Automaton has 19821 states and 27652 transitions. Word has length 90 [2024-11-18 16:09:45,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 16:09:45,695 INFO L471 AbstractCegarLoop]: Abstraction has 19821 states and 27652 transitions. [2024-11-18 16:09:45,695 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.625) internal successors, (85), 8 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:09:45,695 INFO L276 IsEmpty]: Start isEmpty. Operand 19821 states and 27652 transitions. [2024-11-18 16:09:45,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-11-18 16:09:45,698 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:09:45,699 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-18 16:09:45,699 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-18 16:09:45,699 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:09:45,699 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:09:45,699 INFO L85 PathProgramCache]: Analyzing trace with hash -552334994, now seen corresponding path program 1 times [2024-11-18 16:09:45,700 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 16:09:45,700 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [591305705] [2024-11-18 16:09:45,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:09:45,700 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 16:09:45,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:09:45,899 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-18 16:09:45,900 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 16:09:45,900 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [591305705] [2024-11-18 16:09:45,901 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [591305705] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 16:09:45,902 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 16:09:45,902 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-18 16:09:45,902 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1939739936] [2024-11-18 16:09:45,903 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 16:09:45,903 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-18 16:09:45,903 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 16:09:45,904 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-18 16:09:45,904 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-18 16:09:45,904 INFO L87 Difference]: Start difference. First operand 19821 states and 27652 transitions. Second operand has 8 states, 8 states have (on average 10.375) internal successors, (83), 8 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:09:47,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 16:09:47,162 INFO L93 Difference]: Finished difference Result 62555 states and 88779 transitions. [2024-11-18 16:09:47,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-18 16:09:47,163 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.375) internal successors, (83), 8 states have internal predecessors, (83), 0 states have call successors, (0), 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 90 [2024-11-18 16:09:47,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 16:09:47,254 INFO L225 Difference]: With dead ends: 62555 [2024-11-18 16:09:47,254 INFO L226 Difference]: Without dead ends: 55673 [2024-11-18 16:09:47,279 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2024-11-18 16:09:47,280 INFO L432 NwaCegarLoop]: 1639 mSDtfsCounter, 8158 mSDsluCounter, 2154 mSDsCounter, 0 mSdLazyCounter, 117 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8158 SdHoareTripleChecker+Valid, 3793 SdHoareTripleChecker+Invalid, 122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 16:09:47,281 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8158 Valid, 3793 Invalid, 122 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 117 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 16:09:47,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55673 states. [2024-11-18 16:09:48,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55673 to 30157. [2024-11-18 16:09:48,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30157 states, 30155 states have (on average 1.3998341900182392) internal successors, (42212), 30156 states have internal predecessors, (42212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:09:48,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30157 states to 30157 states and 42212 transitions. [2024-11-18 16:09:48,443 INFO L78 Accepts]: Start accepts. Automaton has 30157 states and 42212 transitions. Word has length 90 [2024-11-18 16:09:48,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 16:09:48,444 INFO L471 AbstractCegarLoop]: Abstraction has 30157 states and 42212 transitions. [2024-11-18 16:09:48,444 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.375) internal successors, (83), 8 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:09:48,444 INFO L276 IsEmpty]: Start isEmpty. Operand 30157 states and 42212 transitions. [2024-11-18 16:09:48,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-11-18 16:09:48,447 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:09:48,448 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-18 16:09:48,448 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-18 16:09:48,448 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:09:48,448 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:09:48,449 INFO L85 PathProgramCache]: Analyzing trace with hash 1527163502, now seen corresponding path program 1 times [2024-11-18 16:09:48,449 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 16:09:48,449 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1057319315] [2024-11-18 16:09:48,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:09:48,449 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 16:09:48,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:09:48,643 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-18 16:09:48,643 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 16:09:48,643 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1057319315] [2024-11-18 16:09:48,643 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1057319315] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 16:09:48,643 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 16:09:48,643 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-18 16:09:48,643 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1795714609] [2024-11-18 16:09:48,643 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 16:09:48,644 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-18 16:09:48,644 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 16:09:48,644 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-18 16:09:48,644 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-18 16:09:48,645 INFO L87 Difference]: Start difference. First operand 30157 states and 42212 transitions. Second operand has 8 states, 8 states have (on average 10.125) internal successors, (81), 8 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:09:49,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 16:09:49,683 INFO L93 Difference]: Finished difference Result 69435 states and 98539 transitions. [2024-11-18 16:09:49,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-18 16:09:49,684 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.125) internal successors, (81), 8 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 90 [2024-11-18 16:09:49,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 16:09:49,768 INFO L225 Difference]: With dead ends: 69435 [2024-11-18 16:09:49,768 INFO L226 Difference]: Without dead ends: 62553 [2024-11-18 16:09:49,791 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2024-11-18 16:09:49,792 INFO L432 NwaCegarLoop]: 1636 mSDtfsCounter, 8204 mSDsluCounter, 2182 mSDsCounter, 0 mSdLazyCounter, 146 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8204 SdHoareTripleChecker+Valid, 3818 SdHoareTripleChecker+Invalid, 151 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 146 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 16:09:49,793 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8204 Valid, 3818 Invalid, 151 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 146 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 16:09:49,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62553 states. [2024-11-18 16:09:50,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62553 to 37037. [2024-11-18 16:09:50,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37037 states, 37035 states have (on average 1.4033211826650467) internal successors, (51972), 37036 states have internal predecessors, (51972), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:09:50,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37037 states to 37037 states and 51972 transitions. [2024-11-18 16:09:50,926 INFO L78 Accepts]: Start accepts. Automaton has 37037 states and 51972 transitions. Word has length 90 [2024-11-18 16:09:50,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 16:09:50,927 INFO L471 AbstractCegarLoop]: Abstraction has 37037 states and 51972 transitions. [2024-11-18 16:09:50,927 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.125) internal successors, (81), 8 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:09:50,928 INFO L276 IsEmpty]: Start isEmpty. Operand 37037 states and 51972 transitions. [2024-11-18 16:09:50,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-11-18 16:09:50,932 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:09:50,932 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-18 16:09:50,933 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-18 16:09:50,933 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:09:50,933 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:09:50,933 INFO L85 PathProgramCache]: Analyzing trace with hash -986870930, now seen corresponding path program 1 times [2024-11-18 16:09:50,934 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 16:09:50,934 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [438684384] [2024-11-18 16:09:50,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:09:50,934 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 16:09:50,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:09:51,154 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-18 16:09:51,154 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 16:09:51,154 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [438684384] [2024-11-18 16:09:51,155 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [438684384] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 16:09:51,155 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 16:09:51,155 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-18 16:09:51,155 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [985864177] [2024-11-18 16:09:51,155 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 16:09:51,156 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-18 16:09:51,156 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 16:09:51,156 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-18 16:09:51,157 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-18 16:09:51,157 INFO L87 Difference]: Start difference. First operand 37037 states and 51972 transitions. Second operand has 8 states, 8 states have (on average 9.875) internal successors, (79), 8 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:09:52,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 16:09:52,472 INFO L93 Difference]: Finished difference Result 76315 states and 108299 transitions. [2024-11-18 16:09:52,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-18 16:09:52,473 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.875) internal successors, (79), 8 states have internal predecessors, (79), 0 states have call successors, (0), 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 90 [2024-11-18 16:09:52,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 16:09:52,554 INFO L225 Difference]: With dead ends: 76315 [2024-11-18 16:09:52,555 INFO L226 Difference]: Without dead ends: 69433 [2024-11-18 16:09:52,573 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2024-11-18 16:09:52,573 INFO L432 NwaCegarLoop]: 1641 mSDtfsCounter, 8108 mSDsluCounter, 2270 mSDsCounter, 0 mSdLazyCounter, 157 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8108 SdHoareTripleChecker+Valid, 3911 SdHoareTripleChecker+Invalid, 162 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 157 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 16:09:52,574 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8108 Valid, 3911 Invalid, 162 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 157 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 16:09:52,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69433 states. [2024-11-18 16:09:53,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69433 to 43917. [2024-11-18 16:09:53,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43917 states, 43915 states have (on average 1.4057155869292952) internal successors, (61732), 43916 states have internal predecessors, (61732), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:09:53,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43917 states to 43917 states and 61732 transitions. [2024-11-18 16:09:53,733 INFO L78 Accepts]: Start accepts. Automaton has 43917 states and 61732 transitions. Word has length 90 [2024-11-18 16:09:53,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 16:09:53,733 INFO L471 AbstractCegarLoop]: Abstraction has 43917 states and 61732 transitions. [2024-11-18 16:09:53,733 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.875) internal successors, (79), 8 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:09:53,733 INFO L276 IsEmpty]: Start isEmpty. Operand 43917 states and 61732 transitions. [2024-11-18 16:09:53,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-11-18 16:09:53,739 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:09:53,739 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-18 16:09:53,740 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-18 16:09:53,740 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:09:53,740 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:09:53,740 INFO L85 PathProgramCache]: Analyzing trace with hash -2054453394, now seen corresponding path program 1 times [2024-11-18 16:09:53,740 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 16:09:53,741 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [113237169] [2024-11-18 16:09:53,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:09:53,741 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 16:09:53,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:09:53,922 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-18 16:09:53,923 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 16:09:53,923 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [113237169] [2024-11-18 16:09:53,923 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [113237169] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 16:09:53,923 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 16:09:53,923 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-18 16:09:53,923 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1985525669] [2024-11-18 16:09:53,923 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 16:09:53,924 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-18 16:09:53,925 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 16:09:53,925 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-18 16:09:53,926 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-18 16:09:53,926 INFO L87 Difference]: Start difference. First operand 43917 states and 61732 transitions. Second operand has 8 states, 8 states have (on average 10.875) internal successors, (87), 8 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:09:55,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 16:09:55,612 INFO L93 Difference]: Finished difference Result 83195 states and 118059 transitions. [2024-11-18 16:09:55,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-18 16:09:55,613 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.875) internal successors, (87), 8 states have internal predecessors, (87), 0 states have call successors, (0), 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 90 [2024-11-18 16:09:55,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 16:09:55,731 INFO L225 Difference]: With dead ends: 83195 [2024-11-18 16:09:55,732 INFO L226 Difference]: Without dead ends: 76313 [2024-11-18 16:09:55,758 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2024-11-18 16:09:55,758 INFO L432 NwaCegarLoop]: 1642 mSDtfsCounter, 8048 mSDsluCounter, 2399 mSDsCounter, 0 mSdLazyCounter, 148 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8048 SdHoareTripleChecker+Valid, 4041 SdHoareTripleChecker+Invalid, 153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 148 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 16:09:55,759 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8048 Valid, 4041 Invalid, 153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 148 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 16:09:55,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76313 states. [2024-11-18 16:09:57,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76313 to 50797. [2024-11-18 16:09:57,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50797 states, 50795 states have (on average 1.4074613643075107) internal successors, (71492), 50796 states have internal predecessors, (71492), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:09:57,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50797 states to 50797 states and 71492 transitions. [2024-11-18 16:09:57,186 INFO L78 Accepts]: Start accepts. Automaton has 50797 states and 71492 transitions. Word has length 90 [2024-11-18 16:09:57,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 16:09:57,187 INFO L471 AbstractCegarLoop]: Abstraction has 50797 states and 71492 transitions. [2024-11-18 16:09:57,187 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.875) internal successors, (87), 8 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:09:57,187 INFO L276 IsEmpty]: Start isEmpty. Operand 50797 states and 71492 transitions. [2024-11-18 16:09:57,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-11-18 16:09:57,193 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:09:57,194 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-18 16:09:57,194 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-18 16:09:57,194 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:09:57,195 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:09:57,195 INFO L85 PathProgramCache]: Analyzing trace with hash 168958598, now seen corresponding path program 1 times [2024-11-18 16:09:57,195 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 16:09:57,195 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1358922968] [2024-11-18 16:09:57,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:09:57,195 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 16:09:57,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:09:57,297 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 16:09:57,298 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 16:09:57,298 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1358922968] [2024-11-18 16:09:57,298 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1358922968] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 16:09:57,298 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 16:09:57,299 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 16:09:57,299 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1970871651] [2024-11-18 16:09:57,299 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 16:09:57,299 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 16:09:57,299 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 16:09:57,300 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 16:09:57,300 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 16:09:57,300 INFO L87 Difference]: Start difference. First operand 50797 states and 71492 transitions. Second operand has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:09:58,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 16:09:58,160 INFO L93 Difference]: Finished difference Result 82439 states and 116861 transitions. [2024-11-18 16:09:58,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 16:09:58,161 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 0 states have call successors, (0), 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 92 [2024-11-18 16:09:58,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 16:09:58,213 INFO L225 Difference]: With dead ends: 82439 [2024-11-18 16:09:58,213 INFO L226 Difference]: Without dead ends: 37701 [2024-11-18 16:09:58,245 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 16:09:58,246 INFO L432 NwaCegarLoop]: 1613 mSDtfsCounter, 58 mSDsluCounter, 1550 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 3163 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 16:09:58,246 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 3163 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 16:09:58,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37701 states. [2024-11-18 16:09:59,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37701 to 37699. [2024-11-18 16:09:59,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37699 states, 37697 states have (on average 1.4055760405337294) internal successors, (52986), 37698 states have internal predecessors, (52986), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:09:59,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37699 states to 37699 states and 52986 transitions. [2024-11-18 16:09:59,248 INFO L78 Accepts]: Start accepts. Automaton has 37699 states and 52986 transitions. Word has length 92 [2024-11-18 16:09:59,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 16:09:59,249 INFO L471 AbstractCegarLoop]: Abstraction has 37699 states and 52986 transitions. [2024-11-18 16:09:59,249 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:09:59,249 INFO L276 IsEmpty]: Start isEmpty. Operand 37699 states and 52986 transitions. [2024-11-18 16:09:59,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-11-18 16:09:59,253 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:09:59,253 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-18 16:09:59,254 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-18 16:09:59,254 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:09:59,254 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:09:59,254 INFO L85 PathProgramCache]: Analyzing trace with hash 1616712425, now seen corresponding path program 1 times [2024-11-18 16:09:59,255 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 16:09:59,255 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2036915099] [2024-11-18 16:09:59,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:09:59,255 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 16:09:59,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:09:59,474 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-18 16:09:59,474 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 16:09:59,475 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2036915099] [2024-11-18 16:09:59,475 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2036915099] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 16:09:59,475 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 16:09:59,475 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-18 16:09:59,476 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1104514344] [2024-11-18 16:09:59,476 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 16:09:59,477 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-18 16:09:59,477 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 16:09:59,477 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-18 16:09:59,478 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-18 16:09:59,478 INFO L87 Difference]: Start difference. First operand 37699 states and 52986 transitions. Second operand has 8 states, 8 states have (on average 11.375) internal successors, (91), 8 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:10:00,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 16:10:00,725 INFO L93 Difference]: Finished difference Result 66897 states and 94849 transitions. [2024-11-18 16:10:00,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-18 16:10:00,726 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.375) internal successors, (91), 8 states have internal predecessors, (91), 0 states have call successors, (0), 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 92 [2024-11-18 16:10:00,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 16:10:00,804 INFO L225 Difference]: With dead ends: 66897 [2024-11-18 16:10:00,804 INFO L226 Difference]: Without dead ends: 62031 [2024-11-18 16:10:00,822 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2024-11-18 16:10:00,822 INFO L432 NwaCegarLoop]: 1633 mSDtfsCounter, 8058 mSDsluCounter, 2351 mSDsCounter, 0 mSdLazyCounter, 128 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8058 SdHoareTripleChecker+Valid, 3984 SdHoareTripleChecker+Invalid, 133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 128 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-18 16:10:00,822 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8058 Valid, 3984 Invalid, 133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 128 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-18 16:10:00,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62031 states. [2024-11-18 16:10:02,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62031 to 42563. [2024-11-18 16:10:02,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42563 states, 42561 states have (on average 1.4073447522379643) internal successors, (59898), 42562 states have internal predecessors, (59898), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:10:02,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42563 states to 42563 states and 59898 transitions. [2024-11-18 16:10:02,285 INFO L78 Accepts]: Start accepts. Automaton has 42563 states and 59898 transitions. Word has length 92 [2024-11-18 16:10:02,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 16:10:02,285 INFO L471 AbstractCegarLoop]: Abstraction has 42563 states and 59898 transitions. [2024-11-18 16:10:02,285 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.375) internal successors, (91), 8 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:10:02,285 INFO L276 IsEmpty]: Start isEmpty. Operand 42563 states and 59898 transitions. [2024-11-18 16:10:02,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-11-18 16:10:02,288 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:10:02,288 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-18 16:10:02,289 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-18 16:10:02,289 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:10:02,289 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:10:02,289 INFO L85 PathProgramCache]: Analyzing trace with hash 1117757048, now seen corresponding path program 1 times [2024-11-18 16:10:02,289 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 16:10:02,289 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [262829263] [2024-11-18 16:10:02,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:10:02,290 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 16:10:02,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:10:02,393 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 16:10:02,394 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 16:10:02,394 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [262829263] [2024-11-18 16:10:02,394 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [262829263] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 16:10:02,394 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 16:10:02,394 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 16:10:02,395 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [586510733] [2024-11-18 16:10:02,395 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 16:10:02,395 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 16:10:02,395 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 16:10:02,396 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 16:10:02,396 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 16:10:02,396 INFO L87 Difference]: Start difference. First operand 42563 states and 59898 transitions. Second operand has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:10:02,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 16:10:02,879 INFO L93 Difference]: Finished difference Result 60807 states and 85820 transitions. [2024-11-18 16:10:02,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 16:10:02,880 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 0 states have call successors, (0), 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 93 [2024-11-18 16:10:02,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 16:10:02,908 INFO L225 Difference]: With dead ends: 60807 [2024-11-18 16:10:02,908 INFO L226 Difference]: Without dead ends: 24325 [2024-11-18 16:10:02,937 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 16:10:02,938 INFO L432 NwaCegarLoop]: 1606 mSDtfsCounter, 53 mSDsluCounter, 1542 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 3148 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 16:10:02,938 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 3148 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 16:10:02,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24325 states. [2024-11-18 16:10:03,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24325 to 24323. [2024-11-18 16:10:03,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24323 states, 24321 states have (on average 1.3871962501541877) internal successors, (33738), 24322 states have internal predecessors, (33738), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:10:03,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24323 states to 24323 states and 33738 transitions. [2024-11-18 16:10:03,582 INFO L78 Accepts]: Start accepts. Automaton has 24323 states and 33738 transitions. Word has length 93 [2024-11-18 16:10:03,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 16:10:03,582 INFO L471 AbstractCegarLoop]: Abstraction has 24323 states and 33738 transitions. [2024-11-18 16:10:03,582 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:10:03,583 INFO L276 IsEmpty]: Start isEmpty. Operand 24323 states and 33738 transitions. [2024-11-18 16:10:03,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-11-18 16:10:03,585 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:10:03,585 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 1] [2024-11-18 16:10:03,586 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-18 16:10:03,586 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:10:03,586 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:10:03,586 INFO L85 PathProgramCache]: Analyzing trace with hash 1320571018, now seen corresponding path program 1 times [2024-11-18 16:10:03,587 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 16:10:03,587 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1774085421] [2024-11-18 16:10:03,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:10:03,587 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 16:10:03,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:10:03,679 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 16:10:03,679 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 16:10:03,679 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1774085421] [2024-11-18 16:10:03,680 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1774085421] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 16:10:03,680 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 16:10:03,680 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 16:10:03,680 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1457731088] [2024-11-18 16:10:03,680 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 16:10:03,682 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 16:10:03,682 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 16:10:03,683 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 16:10:03,683 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 16:10:03,683 INFO L87 Difference]: Start difference. First operand 24323 states and 33738 transitions. Second operand has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:10:04,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 16:10:04,040 INFO L93 Difference]: Finished difference Result 33447 states and 46580 transitions. [2024-11-18 16:10:04,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 16:10:04,041 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 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 95 [2024-11-18 16:10:04,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 16:10:04,062 INFO L225 Difference]: With dead ends: 33447 [2024-11-18 16:10:04,062 INFO L226 Difference]: Without dead ends: 15205 [2024-11-18 16:10:04,081 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 16:10:04,081 INFO L432 NwaCegarLoop]: 1599 mSDtfsCounter, 50 mSDsluCounter, 1534 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 3133 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 16:10:04,082 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 3133 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 16:10:04,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15205 states. [2024-11-18 16:10:04,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15205 to 15203. [2024-11-18 16:10:04,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15203 states, 15201 states have (on average 1.3668837576475232) internal successors, (20778), 15202 states have internal predecessors, (20778), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:10:04,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15203 states to 15203 states and 20778 transitions. [2024-11-18 16:10:04,400 INFO L78 Accepts]: Start accepts. Automaton has 15203 states and 20778 transitions. Word has length 95 [2024-11-18 16:10:04,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 16:10:04,400 INFO L471 AbstractCegarLoop]: Abstraction has 15203 states and 20778 transitions. [2024-11-18 16:10:04,401 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:10:04,401 INFO L276 IsEmpty]: Start isEmpty. Operand 15203 states and 20778 transitions. [2024-11-18 16:10:04,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2024-11-18 16:10:04,403 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:10:04,403 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1] [2024-11-18 16:10:04,403 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-18 16:10:04,403 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:10:04,404 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:10:04,404 INFO L85 PathProgramCache]: Analyzing trace with hash -969080548, now seen corresponding path program 1 times [2024-11-18 16:10:04,404 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 16:10:04,404 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [953050535] [2024-11-18 16:10:04,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:10:04,404 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 16:10:04,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:10:04,503 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 16:10:04,503 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 16:10:04,504 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [953050535] [2024-11-18 16:10:04,504 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [953050535] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 16:10:04,504 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 16:10:04,504 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 16:10:04,505 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1642986808] [2024-11-18 16:10:04,505 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 16:10:04,505 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 16:10:04,505 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 16:10:04,506 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 16:10:04,506 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 16:10:04,506 INFO L87 Difference]: Start difference. First operand 15203 states and 20778 transitions. Second operand has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:10:04,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 16:10:04,650 INFO L93 Difference]: Finished difference Result 19767 states and 27140 transitions. [2024-11-18 16:10:04,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 16:10:04,650 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 0 states have call successors, (0), 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 97 [2024-11-18 16:10:04,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 16:10:04,665 INFO L225 Difference]: With dead ends: 19767 [2024-11-18 16:10:04,665 INFO L226 Difference]: Without dead ends: 10645 [2024-11-18 16:10:04,674 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 16:10:04,675 INFO L432 NwaCegarLoop]: 1592 mSDtfsCounter, 47 mSDsluCounter, 1526 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 3118 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 16:10:04,676 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 3118 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 16:10:04,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10645 states. [2024-11-18 16:10:04,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10645 to 10643. [2024-11-18 16:10:04,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10643 states, 10641 states have (on average 1.3493092754440372) internal successors, (14358), 10642 states have internal predecessors, (14358), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:10:04,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10643 states to 10643 states and 14358 transitions. [2024-11-18 16:10:04,828 INFO L78 Accepts]: Start accepts. Automaton has 10643 states and 14358 transitions. Word has length 97 [2024-11-18 16:10:04,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 16:10:04,828 INFO L471 AbstractCegarLoop]: Abstraction has 10643 states and 14358 transitions. [2024-11-18 16:10:04,828 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:10:04,828 INFO L276 IsEmpty]: Start isEmpty. Operand 10643 states and 14358 transitions. [2024-11-18 16:10:04,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-11-18 16:10:04,829 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:10:04,830 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 16:10:04,830 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-18 16:10:04,830 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:10:04,830 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:10:04,830 INFO L85 PathProgramCache]: Analyzing trace with hash -83832786, now seen corresponding path program 1 times [2024-11-18 16:10:04,831 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 16:10:04,831 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [449866650] [2024-11-18 16:10:04,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:10:04,831 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 16:10:04,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:10:04,928 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 16:10:04,928 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 16:10:04,928 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [449866650] [2024-11-18 16:10:04,928 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [449866650] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 16:10:04,928 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 16:10:04,929 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 16:10:04,929 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1570828495] [2024-11-18 16:10:04,929 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 16:10:04,929 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 16:10:04,929 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 16:10:04,930 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 16:10:04,930 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 16:10:04,930 INFO L87 Difference]: Start difference. First operand 10643 states and 14358 transitions. Second operand has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:10:05,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 16:10:05,138 INFO L93 Difference]: Finished difference Result 12927 states and 17510 transitions. [2024-11-18 16:10:05,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 16:10:05,139 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 0 states have call successors, (0), 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 99 [2024-11-18 16:10:05,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 16:10:05,151 INFO L225 Difference]: With dead ends: 12927 [2024-11-18 16:10:05,152 INFO L226 Difference]: Without dead ends: 8365 [2024-11-18 16:10:05,158 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 16:10:05,159 INFO L432 NwaCegarLoop]: 1585 mSDtfsCounter, 44 mSDsluCounter, 1518 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 3103 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 16:10:05,162 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 3103 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 16:10:05,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8365 states. [2024-11-18 16:10:05,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8365 to 8363. [2024-11-18 16:10:05,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8363 states, 8361 states have (on average 1.3369214208826696) internal successors, (11178), 8362 states have internal predecessors, (11178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:10:05,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8363 states to 8363 states and 11178 transitions. [2024-11-18 16:10:05,355 INFO L78 Accepts]: Start accepts. Automaton has 8363 states and 11178 transitions. Word has length 99 [2024-11-18 16:10:05,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 16:10:05,356 INFO L471 AbstractCegarLoop]: Abstraction has 8363 states and 11178 transitions. [2024-11-18 16:10:05,356 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:10:05,356 INFO L276 IsEmpty]: Start isEmpty. Operand 8363 states and 11178 transitions. [2024-11-18 16:10:05,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-18 16:10:05,358 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:10:05,358 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 16:10:05,358 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-18 16:10:05,358 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:10:05,359 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:10:05,359 INFO L85 PathProgramCache]: Analyzing trace with hash -709435968, now seen corresponding path program 1 times [2024-11-18 16:10:05,359 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 16:10:05,359 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1568341812] [2024-11-18 16:10:05,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:10:05,359 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 16:10:05,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:10:05,472 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 16:10:05,472 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 16:10:05,473 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1568341812] [2024-11-18 16:10:05,473 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1568341812] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 16:10:05,473 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 16:10:05,473 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 16:10:05,473 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1825078558] [2024-11-18 16:10:05,473 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 16:10:05,474 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 16:10:05,474 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 16:10:05,475 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 16:10:05,475 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 16:10:05,475 INFO L87 Difference]: Start difference. First operand 8363 states and 11178 transitions. Second operand has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:10:05,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 16:10:05,569 INFO L93 Difference]: Finished difference Result 9507 states and 12740 transitions. [2024-11-18 16:10:05,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 16:10:05,569 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 0 states have call successors, (0), 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 101 [2024-11-18 16:10:05,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 16:10:05,579 INFO L225 Difference]: With dead ends: 9507 [2024-11-18 16:10:05,580 INFO L226 Difference]: Without dead ends: 7225 [2024-11-18 16:10:05,583 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 16:10:05,584 INFO L432 NwaCegarLoop]: 1578 mSDtfsCounter, 41 mSDsluCounter, 1510 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 3088 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 16:10:05,585 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 3088 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 16:10:05,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7225 states. [2024-11-18 16:10:05,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7225 to 7223. [2024-11-18 16:10:05,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7223 states, 7221 states have (on average 1.3298712089738263) internal successors, (9603), 7222 states have internal predecessors, (9603), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:10:05,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7223 states to 7223 states and 9603 transitions. [2024-11-18 16:10:05,717 INFO L78 Accepts]: Start accepts. Automaton has 7223 states and 9603 transitions. Word has length 101 [2024-11-18 16:10:05,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 16:10:05,717 INFO L471 AbstractCegarLoop]: Abstraction has 7223 states and 9603 transitions. [2024-11-18 16:10:05,717 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:10:05,718 INFO L276 IsEmpty]: Start isEmpty. Operand 7223 states and 9603 transitions. [2024-11-18 16:10:05,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-11-18 16:10:05,719 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:10:05,719 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 16:10:05,720 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-11-18 16:10:05,720 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:10:05,721 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:10:05,721 INFO L85 PathProgramCache]: Analyzing trace with hash 1744587218, now seen corresponding path program 1 times [2024-11-18 16:10:05,721 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 16:10:05,721 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [790771885] [2024-11-18 16:10:05,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:10:05,722 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 16:10:05,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:10:06,656 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 7 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 16:10:06,657 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 16:10:06,657 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [790771885] [2024-11-18 16:10:06,657 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [790771885] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 16:10:06,657 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [511224528] [2024-11-18 16:10:06,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:10:06,658 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 16:10:06,658 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 16:10:06,660 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-18 16:10:06,661 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-18 16:10:06,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:10:06,830 INFO L255 TraceCheckSpWp]: Trace formula consists of 491 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-18 16:10:06,837 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 16:10:07,110 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 4 proven. 13 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-18 16:10:07,110 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-18 16:10:07,372 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 4 proven. 13 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-18 16:10:07,372 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [511224528] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-18 16:10:07,372 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-18 16:10:07,372 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 6, 4] total 19 [2024-11-18 16:10:07,373 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [980577029] [2024-11-18 16:10:07,373 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-18 16:10:07,373 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-18 16:10:07,373 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 16:10:07,374 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-18 16:10:07,375 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=291, Unknown=0, NotChecked=0, Total=342 [2024-11-18 16:10:07,375 INFO L87 Difference]: Start difference. First operand 7223 states and 9603 transitions. Second operand has 19 states, 19 states have (on average 15.368421052631579) internal successors, (292), 19 states have internal predecessors, (292), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:10:09,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 16:10:09,950 INFO L93 Difference]: Finished difference Result 16054 states and 21545 transitions. [2024-11-18 16:10:09,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2024-11-18 16:10:09,951 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 15.368421052631579) internal successors, (292), 19 states have internal predecessors, (292), 0 states have call successors, (0), 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 103 [2024-11-18 16:10:09,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 16:10:09,967 INFO L225 Difference]: With dead ends: 16054 [2024-11-18 16:10:09,967 INFO L226 Difference]: Without dead ends: 14912 [2024-11-18 16:10:09,973 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 264 GetRequests, 200 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1292 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=774, Invalid=3516, Unknown=0, NotChecked=0, Total=4290 [2024-11-18 16:10:09,974 INFO L432 NwaCegarLoop]: 1535 mSDtfsCounter, 15985 mSDsluCounter, 7962 mSDsCounter, 0 mSdLazyCounter, 893 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15985 SdHoareTripleChecker+Valid, 9497 SdHoareTripleChecker+Invalid, 950 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 893 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-18 16:10:09,974 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [15985 Valid, 9497 Invalid, 950 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 893 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-18 16:10:09,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14912 states. [2024-11-18 16:10:10,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14912 to 14860. [2024-11-18 16:10:10,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14860 states, 14858 states have (on average 1.3132319289271772) internal successors, (19512), 14859 states have internal predecessors, (19512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:10:10,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14860 states to 14860 states and 19512 transitions. [2024-11-18 16:10:10,238 INFO L78 Accepts]: Start accepts. Automaton has 14860 states and 19512 transitions. Word has length 103 [2024-11-18 16:10:10,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 16:10:10,239 INFO L471 AbstractCegarLoop]: Abstraction has 14860 states and 19512 transitions. [2024-11-18 16:10:10,239 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 15.368421052631579) internal successors, (292), 19 states have internal predecessors, (292), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:10:10,239 INFO L276 IsEmpty]: Start isEmpty. Operand 14860 states and 19512 transitions. [2024-11-18 16:10:10,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-11-18 16:10:10,241 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:10:10,241 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 16:10:10,260 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-18 16:10:10,445 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,SelfDestructingSolverStorable26 [2024-11-18 16:10:10,446 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:10:10,446 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:10:10,447 INFO L85 PathProgramCache]: Analyzing trace with hash -520471001, now seen corresponding path program 1 times [2024-11-18 16:10:10,447 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 16:10:10,447 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1327332358] [2024-11-18 16:10:10,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:10:10,447 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 16:10:10,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:10:11,425 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 13 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 16:10:11,426 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 16:10:11,426 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1327332358] [2024-11-18 16:10:11,426 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1327332358] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 16:10:11,426 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1965170018] [2024-11-18 16:10:11,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:10:11,427 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 16:10:11,427 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 16:10:11,429 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-18 16:10:11,431 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-18 16:10:11,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:10:11,576 INFO L255 TraceCheckSpWp]: Trace formula consists of 494 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-18 16:10:11,579 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 16:10:12,301 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 15 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 16:10:12,301 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-18 16:10:13,700 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 15 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 16:10:13,700 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1965170018] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-18 16:10:13,700 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-18 16:10:13,701 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 11, 11] total 31 [2024-11-18 16:10:13,701 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [145588158] [2024-11-18 16:10:13,701 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-18 16:10:13,702 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2024-11-18 16:10:13,702 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 16:10:13,703 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2024-11-18 16:10:13,703 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=124, Invalid=868, Unknown=0, NotChecked=0, Total=992 [2024-11-18 16:10:13,703 INFO L87 Difference]: Start difference. First operand 14860 states and 19512 transitions. Second operand has 32 states, 32 states have (on average 8.125) internal successors, (260), 31 states have internal predecessors, (260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:10:16,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 16:10:16,890 INFO L93 Difference]: Finished difference Result 41178 states and 53945 transitions. [2024-11-18 16:10:16,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2024-11-18 16:10:16,890 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 32 states have (on average 8.125) internal successors, (260), 31 states have internal predecessors, (260), 0 states have call successors, (0), 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 104 [2024-11-18 16:10:16,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 16:10:16,929 INFO L225 Difference]: With dead ends: 41178 [2024-11-18 16:10:16,929 INFO L226 Difference]: Without dead ends: 32465 [2024-11-18 16:10:16,946 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 254 GetRequests, 188 SyntacticMatches, 0 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 947 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=950, Invalid=3606, Unknown=0, NotChecked=0, Total=4556 [2024-11-18 16:10:16,946 INFO L432 NwaCegarLoop]: 1520 mSDtfsCounter, 20255 mSDsluCounter, 5369 mSDsCounter, 0 mSdLazyCounter, 1249 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20255 SdHoareTripleChecker+Valid, 6889 SdHoareTripleChecker+Invalid, 1290 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 1249 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-18 16:10:16,946 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [20255 Valid, 6889 Invalid, 1290 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 1249 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-18 16:10:16,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32465 states. [2024-11-18 16:10:17,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32465 to 31963. [2024-11-18 16:10:18,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31963 states, 31961 states have (on average 1.297769156159069) internal successors, (41478), 31962 states have internal predecessors, (41478), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:10:18,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31963 states to 31963 states and 41478 transitions. [2024-11-18 16:10:18,081 INFO L78 Accepts]: Start accepts. Automaton has 31963 states and 41478 transitions. Word has length 104 [2024-11-18 16:10:18,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 16:10:18,081 INFO L471 AbstractCegarLoop]: Abstraction has 31963 states and 41478 transitions. [2024-11-18 16:10:18,081 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 32 states have (on average 8.125) internal successors, (260), 31 states have internal predecessors, (260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:10:18,081 INFO L276 IsEmpty]: Start isEmpty. Operand 31963 states and 41478 transitions. [2024-11-18 16:10:18,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-11-18 16:10:18,083 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:10:18,084 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 16:10:18,100 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-18 16:10:18,284 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,SelfDestructingSolverStorable27 [2024-11-18 16:10:18,285 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:10:18,285 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:10:18,285 INFO L85 PathProgramCache]: Analyzing trace with hash -1322202215, now seen corresponding path program 1 times [2024-11-18 16:10:18,285 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 16:10:18,286 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1635748503] [2024-11-18 16:10:18,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:10:18,286 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 16:10:18,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:10:18,654 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 5 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 16:10:18,654 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 16:10:18,654 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1635748503] [2024-11-18 16:10:18,655 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1635748503] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 16:10:18,655 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1839750128] [2024-11-18 16:10:18,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:10:18,655 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 16:10:18,655 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 16:10:18,657 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-18 16:10:18,659 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-18 16:10:18,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:10:18,912 INFO L255 TraceCheckSpWp]: Trace formula consists of 496 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-18 16:10:18,916 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 16:10:19,378 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 5 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 16:10:19,379 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-18 16:10:20,244 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 5 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 16:10:20,244 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1839750128] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-18 16:10:20,245 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-18 16:10:20,245 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 22 [2024-11-18 16:10:20,245 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1555215543] [2024-11-18 16:10:20,245 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-18 16:10:20,246 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-18 16:10:20,246 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 16:10:20,248 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-18 16:10:20,248 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=99, Invalid=407, Unknown=0, NotChecked=0, Total=506 [2024-11-18 16:10:20,248 INFO L87 Difference]: Start difference. First operand 31963 states and 41478 transitions. Second operand has 23 states, 23 states have (on average 11.217391304347826) internal successors, (258), 22 states have internal predecessors, (258), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)