./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem18_label04.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 84cfde4a Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem18_label04.c -s /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-clean/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 3c0864484c3fbf854768e10eb10840f6301266ef3080d1cd3d797df7c0e5ed88 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-84cfde4 [2024-10-10 23:50:25,650 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-10 23:50:25,714 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-10 23:50:25,716 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-10 23:50:25,718 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-10 23:50:25,740 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-10 23:50:25,741 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-10 23:50:25,741 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-10 23:50:25,741 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-10 23:50:25,741 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-10 23:50:25,742 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-10 23:50:25,742 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-10 23:50:25,744 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-10 23:50:25,746 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-10 23:50:25,746 INFO L153 SettingsManager]: * Use SBE=true [2024-10-10 23:50:25,747 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-10 23:50:25,747 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-10 23:50:25,747 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-10 23:50:25,747 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-10 23:50:25,747 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-10 23:50:25,748 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-10 23:50:25,748 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-10 23:50:25,749 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-10 23:50:25,749 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-10 23:50:25,749 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-10 23:50:25,749 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-10 23:50:25,750 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-10 23:50:25,750 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-10 23:50:25,750 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-10 23:50:25,750 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-10 23:50:25,750 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-10 23:50:25,751 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-10 23:50:25,751 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-10 23:50:25,751 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-10 23:50:25,752 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-10 23:50:25,752 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-10 23:50:25,752 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-10 23:50:25,753 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-10 23:50:25,753 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-10 23:50:25,753 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-10 23:50:25,753 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-10 23:50:25,753 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-10 23:50:25,753 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-clean/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3c0864484c3fbf854768e10eb10840f6301266ef3080d1cd3d797df7c0e5ed88 [2024-10-10 23:50:25,956 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-10 23:50:25,976 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-10 23:50:25,978 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-10 23:50:25,979 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-10 23:50:25,979 INFO L274 PluginConnector]: CDTParser initialized [2024-10-10 23:50:25,980 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem18_label04.c [2024-10-10 23:50:27,175 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-10 23:50:27,505 INFO L384 CDTParser]: Found 1 translation units. [2024-10-10 23:50:27,507 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem18_label04.c [2024-10-10 23:50:27,529 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/3f7bfd05b/4cced0f1eea849c095d7753aa8eadc6e/FLAG772e28e41 [2024-10-10 23:50:27,741 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/3f7bfd05b/4cced0f1eea849c095d7753aa8eadc6e [2024-10-10 23:50:27,743 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-10 23:50:27,744 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-10 23:50:27,745 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-10 23:50:27,746 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-10 23:50:27,750 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-10 23:50:27,750 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.10 11:50:27" (1/1) ... [2024-10-10 23:50:27,751 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@54e7d829 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 11:50:27, skipping insertion in model container [2024-10-10 23:50:27,751 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.10 11:50:27" (1/1) ... [2024-10-10 23:50:27,818 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-10 23:50:28,050 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem18_label04.c[5507,5520] [2024-10-10 23:50:28,490 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-10 23:50:28,499 INFO L200 MainTranslator]: Completed pre-run [2024-10-10 23:50:28,521 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem18_label04.c[5507,5520] [2024-10-10 23:50:28,740 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-10 23:50:28,759 INFO L204 MainTranslator]: Completed translation [2024-10-10 23:50:28,760 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 11:50:28 WrapperNode [2024-10-10 23:50:28,760 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-10 23:50:28,761 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-10 23:50:28,761 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-10 23:50:28,761 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-10 23:50:28,767 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 11:50:28" (1/1) ... [2024-10-10 23:50:28,810 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 11:50:28" (1/1) ... [2024-10-10 23:50:28,922 INFO L138 Inliner]: procedures = 16, calls = 10, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 4135 [2024-10-10 23:50:28,923 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-10 23:50:28,924 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-10 23:50:28,924 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-10 23:50:28,924 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-10 23:50:28,933 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 11:50:28" (1/1) ... [2024-10-10 23:50:28,933 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 11:50:28" (1/1) ... [2024-10-10 23:50:29,002 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 11:50:28" (1/1) ... [2024-10-10 23:50:29,074 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-10-10 23:50:29,075 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 11:50:28" (1/1) ... [2024-10-10 23:50:29,075 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 11:50:28" (1/1) ... [2024-10-10 23:50:29,184 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 11:50:28" (1/1) ... [2024-10-10 23:50:29,209 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 11:50:28" (1/1) ... [2024-10-10 23:50:29,222 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 11:50:28" (1/1) ... [2024-10-10 23:50:29,233 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 11:50:28" (1/1) ... [2024-10-10 23:50:29,256 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-10 23:50:29,258 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-10 23:50:29,258 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-10 23:50:29,259 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-10 23:50:29,259 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 11:50:28" (1/1) ... [2024-10-10 23:50:29,264 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-10 23:50:29,272 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-10 23:50:29,286 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-10 23:50:29,288 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-10 23:50:29,324 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-10 23:50:29,324 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-10 23:50:29,324 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-10 23:50:29,324 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-10 23:50:29,380 INFO L238 CfgBuilder]: Building ICFG [2024-10-10 23:50:29,382 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-10 23:50:31,928 INFO L? ?]: Removed 639 outVars from TransFormulas that were not future-live. [2024-10-10 23:50:31,930 INFO L287 CfgBuilder]: Performing block encoding [2024-10-10 23:50:31,982 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-10 23:50:31,982 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-10 23:50:31,982 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.10 11:50:31 BoogieIcfgContainer [2024-10-10 23:50:31,983 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-10 23:50:31,984 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-10 23:50:31,984 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-10 23:50:31,987 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-10 23:50:31,987 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.10 11:50:27" (1/3) ... [2024-10-10 23:50:31,987 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ab324e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.10 11:50:31, skipping insertion in model container [2024-10-10 23:50:31,987 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 11:50:28" (2/3) ... [2024-10-10 23:50:31,987 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ab324e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.10 11:50:31, skipping insertion in model container [2024-10-10 23:50:31,988 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.10 11:50:31" (3/3) ... [2024-10-10 23:50:31,989 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem18_label04.c [2024-10-10 23:50:32,001 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-10 23:50:32,001 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-10 23:50:32,065 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-10 23:50:32,070 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;@4cd32ed1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-10 23:50:32,071 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-10 23:50:32,076 INFO L276 IsEmpty]: Start isEmpty. Operand has 695 states, 693 states have (on average 1.9942279942279941) internal successors, (1382), 694 states have internal predecessors, (1382), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-10 23:50:32,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2024-10-10 23:50:32,081 INFO L207 NwaCegarLoop]: Found error trace [2024-10-10 23:50:32,081 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] [2024-10-10 23:50:32,082 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-10 23:50:32,086 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-10 23:50:32,086 INFO L85 PathProgramCache]: Analyzing trace with hash -1670764293, now seen corresponding path program 1 times [2024-10-10 23:50:32,092 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-10 23:50:32,093 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2572842] [2024-10-10 23:50:32,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-10 23:50:32,093 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-10 23:50:32,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-10 23:50:32,248 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-10 23:50:32,248 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-10 23:50:32,248 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2572842] [2024-10-10 23:50:32,250 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2572842] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-10 23:50:32,250 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-10 23:50:32,250 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-10 23:50:32,251 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1060589751] [2024-10-10 23:50:32,251 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-10 23:50:32,255 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-10 23:50:32,256 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-10 23:50:32,274 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-10 23:50:32,274 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-10 23:50:32,277 INFO L87 Difference]: Start difference. First operand has 695 states, 693 states have (on average 1.9942279942279941) internal successors, (1382), 694 states have internal predecessors, (1382), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 25.5) internal successors, (51), 2 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-10 23:50:32,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-10 23:50:32,351 INFO L93 Difference]: Finished difference Result 1389 states and 2763 transitions. [2024-10-10 23:50:32,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-10 23:50:32,357 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 25.5) internal successors, (51), 2 states have internal predecessors, (51), 0 states have call successors, (0), 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 51 [2024-10-10 23:50:32,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-10 23:50:32,370 INFO L225 Difference]: With dead ends: 1389 [2024-10-10 23:50:32,370 INFO L226 Difference]: Without dead ends: 693 [2024-10-10 23:50:32,375 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-10 23:50:32,380 INFO L432 NwaCegarLoop]: 1317 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1317 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-10 23:50:32,382 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1317 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-10 23:50:32,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 693 states. [2024-10-10 23:50:32,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 693 to 693. [2024-10-10 23:50:32,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 693 states, 692 states have (on average 1.903179190751445) internal successors, (1317), 692 states have internal predecessors, (1317), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-10 23:50:32,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 693 states to 693 states and 1317 transitions. [2024-10-10 23:50:32,435 INFO L78 Accepts]: Start accepts. Automaton has 693 states and 1317 transitions. Word has length 51 [2024-10-10 23:50:32,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-10 23:50:32,435 INFO L471 AbstractCegarLoop]: Abstraction has 693 states and 1317 transitions. [2024-10-10 23:50:32,436 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 25.5) internal successors, (51), 2 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-10 23:50:32,436 INFO L276 IsEmpty]: Start isEmpty. Operand 693 states and 1317 transitions. [2024-10-10 23:50:32,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2024-10-10 23:50:32,437 INFO L207 NwaCegarLoop]: Found error trace [2024-10-10 23:50:32,437 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] [2024-10-10 23:50:32,437 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-10 23:50:32,437 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-10 23:50:32,438 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-10 23:50:32,438 INFO L85 PathProgramCache]: Analyzing trace with hash -1496603779, now seen corresponding path program 1 times [2024-10-10 23:50:32,438 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-10 23:50:32,438 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1737927767] [2024-10-10 23:50:32,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-10 23:50:32,438 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-10 23:50:32,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-10 23:50:32,592 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-10 23:50:32,593 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-10 23:50:32,593 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1737927767] [2024-10-10 23:50:32,594 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1737927767] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-10 23:50:32,594 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-10 23:50:32,594 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-10 23:50:32,595 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1872984075] [2024-10-10 23:50:32,595 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-10 23:50:32,596 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-10 23:50:32,596 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-10 23:50:32,597 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-10 23:50:32,598 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-10 23:50:32,598 INFO L87 Difference]: Start difference. First operand 693 states and 1317 transitions. Second operand has 3 states, 3 states have (on average 17.0) internal successors, (51), 2 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-10 23:50:34,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-10 23:50:34,891 INFO L93 Difference]: Finished difference Result 2075 states and 3948 transitions. [2024-10-10 23:50:34,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-10 23:50:34,891 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 2 states have internal predecessors, (51), 0 states have call successors, (0), 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 51 [2024-10-10 23:50:34,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-10 23:50:34,896 INFO L225 Difference]: With dead ends: 2075 [2024-10-10 23:50:34,896 INFO L226 Difference]: Without dead ends: 1383 [2024-10-10 23:50:34,897 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-10 23:50:34,898 INFO L432 NwaCegarLoop]: 429 mSDtfsCounter, 724 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 1994 mSolverCounterSat, 673 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 724 SdHoareTripleChecker+Valid, 435 SdHoareTripleChecker+Invalid, 2667 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 673 IncrementalHoareTripleChecker+Valid, 1994 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-10-10 23:50:34,898 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [724 Valid, 435 Invalid, 2667 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [673 Valid, 1994 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-10-10 23:50:34,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1383 states. [2024-10-10 23:50:34,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1383 to 1383. [2024-10-10 23:50:34,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1383 states, 1382 states have (on average 1.5998552821997105) internal successors, (2211), 1382 states have internal predecessors, (2211), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-10 23:50:34,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1383 states to 1383 states and 2211 transitions. [2024-10-10 23:50:34,943 INFO L78 Accepts]: Start accepts. Automaton has 1383 states and 2211 transitions. Word has length 51 [2024-10-10 23:50:34,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-10 23:50:34,943 INFO L471 AbstractCegarLoop]: Abstraction has 1383 states and 2211 transitions. [2024-10-10 23:50:34,943 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 2 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-10 23:50:34,943 INFO L276 IsEmpty]: Start isEmpty. Operand 1383 states and 2211 transitions. [2024-10-10 23:50:34,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2024-10-10 23:50:34,945 INFO L207 NwaCegarLoop]: Found error trace [2024-10-10 23:50:34,946 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-10 23:50:34,946 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-10 23:50:34,946 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-10 23:50:34,947 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-10 23:50:34,948 INFO L85 PathProgramCache]: Analyzing trace with hash 1022925719, now seen corresponding path program 1 times [2024-10-10 23:50:34,948 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-10 23:50:34,948 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [154769290] [2024-10-10 23:50:34,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-10 23:50:34,949 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-10 23:50:34,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-10 23:50:35,083 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 49 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-10 23:50:35,083 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-10 23:50:35,083 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [154769290] [2024-10-10 23:50:35,083 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [154769290] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-10 23:50:35,083 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-10 23:50:35,084 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-10 23:50:35,084 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [42685736] [2024-10-10 23:50:35,084 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-10 23:50:35,086 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-10 23:50:35,086 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-10 23:50:35,087 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-10 23:50:35,088 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-10 23:50:35,089 INFO L87 Difference]: Start difference. First operand 1383 states and 2211 transitions. Second operand has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 2 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-10 23:50:37,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-10 23:50:37,244 INFO L93 Difference]: Finished difference Result 4145 states and 6630 transitions. [2024-10-10 23:50:37,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-10 23:50:37,245 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 2 states have internal predecessors, (116), 0 states have call successors, (0), 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 116 [2024-10-10 23:50:37,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-10 23:50:37,253 INFO L225 Difference]: With dead ends: 4145 [2024-10-10 23:50:37,253 INFO L226 Difference]: Without dead ends: 2763 [2024-10-10 23:50:37,257 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-10 23:50:37,258 INFO L432 NwaCegarLoop]: 522 mSDtfsCounter, 714 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 1702 mSolverCounterSat, 918 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 714 SdHoareTripleChecker+Valid, 527 SdHoareTripleChecker+Invalid, 2620 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 918 IncrementalHoareTripleChecker+Valid, 1702 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-10-10 23:50:37,259 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [714 Valid, 527 Invalid, 2620 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [918 Valid, 1702 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-10-10 23:50:37,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2763 states. [2024-10-10 23:50:37,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2763 to 2763. [2024-10-10 23:50:37,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2763 states, 2762 states have (on average 1.3504706734250542) internal successors, (3730), 2762 states have internal predecessors, (3730), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-10 23:50:37,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2763 states to 2763 states and 3730 transitions. [2024-10-10 23:50:37,301 INFO L78 Accepts]: Start accepts. Automaton has 2763 states and 3730 transitions. Word has length 116 [2024-10-10 23:50:37,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-10 23:50:37,303 INFO L471 AbstractCegarLoop]: Abstraction has 2763 states and 3730 transitions. [2024-10-10 23:50:37,303 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 2 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-10 23:50:37,303 INFO L276 IsEmpty]: Start isEmpty. Operand 2763 states and 3730 transitions. [2024-10-10 23:50:37,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2024-10-10 23:50:37,306 INFO L207 NwaCegarLoop]: Found error trace [2024-10-10 23:50:37,306 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-10-10 23:50:37,306 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-10 23:50:37,306 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-10 23:50:37,307 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-10 23:50:37,307 INFO L85 PathProgramCache]: Analyzing trace with hash 107507120, now seen corresponding path program 1 times [2024-10-10 23:50:37,307 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-10 23:50:37,310 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1903115199] [2024-10-10 23:50:37,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-10 23:50:37,310 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-10 23:50:37,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-10 23:50:37,829 INFO L134 CoverageAnalysis]: Checked inductivity of 163 backedges. 113 proven. 0 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2024-10-10 23:50:37,829 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-10 23:50:37,830 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1903115199] [2024-10-10 23:50:37,830 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1903115199] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-10 23:50:37,830 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-10 23:50:37,830 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-10 23:50:37,830 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1662207103] [2024-10-10 23:50:37,830 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-10 23:50:37,831 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-10 23:50:37,831 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-10 23:50:37,831 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-10 23:50:37,831 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-10 23:50:37,832 INFO L87 Difference]: Start difference. First operand 2763 states and 3730 transitions. Second operand has 4 states, 4 states have (on average 46.25) internal successors, (185), 3 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-10 23:50:40,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-10 23:50:40,479 INFO L93 Difference]: Finished difference Result 6905 states and 9073 transitions. [2024-10-10 23:50:40,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-10 23:50:40,479 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 46.25) internal successors, (185), 3 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 234 [2024-10-10 23:50:40,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-10 23:50:40,492 INFO L225 Difference]: With dead ends: 6905 [2024-10-10 23:50:40,493 INFO L226 Difference]: Without dead ends: 4143 [2024-10-10 23:50:40,496 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-10 23:50:40,497 INFO L432 NwaCegarLoop]: 621 mSDtfsCounter, 1873 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 4085 mSolverCounterSat, 190 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1873 SdHoareTripleChecker+Valid, 638 SdHoareTripleChecker+Invalid, 4275 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 190 IncrementalHoareTripleChecker+Valid, 4085 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2024-10-10 23:50:40,497 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1873 Valid, 638 Invalid, 4275 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [190 Valid, 4085 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2024-10-10 23:50:40,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4143 states. [2024-10-10 23:50:40,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4143 to 4143. [2024-10-10 23:50:40,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4143 states, 4142 states have (on average 1.2467407049734427) internal successors, (5164), 4142 states have internal predecessors, (5164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-10 23:50:40,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4143 states to 4143 states and 5164 transitions. [2024-10-10 23:50:40,547 INFO L78 Accepts]: Start accepts. Automaton has 4143 states and 5164 transitions. Word has length 234 [2024-10-10 23:50:40,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-10 23:50:40,547 INFO L471 AbstractCegarLoop]: Abstraction has 4143 states and 5164 transitions. [2024-10-10 23:50:40,548 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 46.25) internal successors, (185), 3 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-10 23:50:40,548 INFO L276 IsEmpty]: Start isEmpty. Operand 4143 states and 5164 transitions. [2024-10-10 23:50:40,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 351 [2024-10-10 23:50:40,552 INFO L207 NwaCegarLoop]: Found error trace [2024-10-10 23:50:40,552 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-10 23:50:40,552 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-10 23:50:40,552 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-10 23:50:40,552 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-10 23:50:40,553 INFO L85 PathProgramCache]: Analyzing trace with hash -1501489907, now seen corresponding path program 1 times [2024-10-10 23:50:40,553 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-10 23:50:40,553 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [644949952] [2024-10-10 23:50:40,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-10 23:50:40,553 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-10 23:50:40,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-10 23:50:40,791 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 49 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-10 23:50:40,793 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-10 23:50:40,793 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [644949952] [2024-10-10 23:50:40,793 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [644949952] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-10 23:50:40,793 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-10 23:50:40,793 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-10 23:50:40,795 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1911063444] [2024-10-10 23:50:40,795 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-10 23:50:40,795 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-10 23:50:40,796 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-10 23:50:40,796 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-10 23:50:40,797 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-10 23:50:40,797 INFO L87 Difference]: Start difference. First operand 4143 states and 5164 transitions. Second operand has 3 states, 3 states have (on average 116.66666666666667) internal successors, (350), 3 states have internal predecessors, (350), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-10 23:50:42,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-10 23:50:42,526 INFO L93 Difference]: Finished difference Result 11735 states and 14757 transitions. [2024-10-10 23:50:42,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-10 23:50:42,527 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 116.66666666666667) internal successors, (350), 3 states have internal predecessors, (350), 0 states have call successors, (0), 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 350 [2024-10-10 23:50:42,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-10 23:50:42,544 INFO L225 Difference]: With dead ends: 11735 [2024-10-10 23:50:42,544 INFO L226 Difference]: Without dead ends: 7593 [2024-10-10 23:50:42,549 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-10 23:50:42,550 INFO L432 NwaCegarLoop]: 815 mSDtfsCounter, 654 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 2346 mSolverCounterSat, 446 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 654 SdHoareTripleChecker+Valid, 821 SdHoareTripleChecker+Invalid, 2792 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 446 IncrementalHoareTripleChecker+Valid, 2346 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-10-10 23:50:42,551 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [654 Valid, 821 Invalid, 2792 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [446 Valid, 2346 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-10-10 23:50:42,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7593 states. [2024-10-10 23:50:42,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7593 to 7593. [2024-10-10 23:50:42,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7593 states, 7592 states have (on average 1.2413066385669125) internal successors, (9424), 7592 states have internal predecessors, (9424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-10 23:50:42,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7593 states to 7593 states and 9424 transitions. [2024-10-10 23:50:42,643 INFO L78 Accepts]: Start accepts. Automaton has 7593 states and 9424 transitions. Word has length 350 [2024-10-10 23:50:42,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-10 23:50:42,645 INFO L471 AbstractCegarLoop]: Abstraction has 7593 states and 9424 transitions. [2024-10-10 23:50:42,646 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 116.66666666666667) internal successors, (350), 3 states have internal predecessors, (350), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-10 23:50:42,646 INFO L276 IsEmpty]: Start isEmpty. Operand 7593 states and 9424 transitions. [2024-10-10 23:50:42,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 358 [2024-10-10 23:50:42,649 INFO L207 NwaCegarLoop]: Found error trace [2024-10-10 23:50:42,649 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-10 23:50:42,649 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-10 23:50:42,649 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-10 23:50:42,650 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-10 23:50:42,650 INFO L85 PathProgramCache]: Analyzing trace with hash -795395664, now seen corresponding path program 1 times [2024-10-10 23:50:42,650 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-10 23:50:42,650 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1070938698] [2024-10-10 23:50:42,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-10 23:50:42,650 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-10 23:50:42,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-10 23:50:42,908 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 49 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-10 23:50:42,908 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-10 23:50:42,908 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1070938698] [2024-10-10 23:50:42,908 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1070938698] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-10 23:50:42,909 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-10 23:50:42,909 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-10 23:50:42,909 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1674592389] [2024-10-10 23:50:42,909 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-10 23:50:42,910 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-10 23:50:42,910 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-10 23:50:42,910 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-10 23:50:42,911 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-10 23:50:42,911 INFO L87 Difference]: Start difference. First operand 7593 states and 9424 transitions. Second operand has 3 states, 3 states have (on average 119.0) internal successors, (357), 3 states have internal predecessors, (357), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-10 23:50:44,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-10 23:50:44,752 INFO L93 Difference]: Finished difference Result 17255 states and 21873 transitions. [2024-10-10 23:50:44,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-10 23:50:44,753 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 119.0) internal successors, (357), 3 states have internal predecessors, (357), 0 states have call successors, (0), 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 357 [2024-10-10 23:50:44,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-10 23:50:44,809 INFO L225 Difference]: With dead ends: 17255 [2024-10-10 23:50:44,809 INFO L226 Difference]: Without dead ends: 10353 [2024-10-10 23:50:44,813 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-10 23:50:44,815 INFO L432 NwaCegarLoop]: 92 mSDtfsCounter, 655 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 2375 mSolverCounterSat, 473 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 655 SdHoareTripleChecker+Valid, 98 SdHoareTripleChecker+Invalid, 2848 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 473 IncrementalHoareTripleChecker+Valid, 2375 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-10-10 23:50:44,816 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [655 Valid, 98 Invalid, 2848 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [473 Valid, 2375 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-10-10 23:50:44,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10353 states. [2024-10-10 23:50:44,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10353 to 9663. [2024-10-10 23:50:44,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9663 states, 9662 states have (on average 1.2808942247981785) internal successors, (12376), 9662 states have internal predecessors, (12376), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-10 23:50:44,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9663 states to 9663 states and 12376 transitions. [2024-10-10 23:50:44,931 INFO L78 Accepts]: Start accepts. Automaton has 9663 states and 12376 transitions. Word has length 357 [2024-10-10 23:50:44,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-10 23:50:44,932 INFO L471 AbstractCegarLoop]: Abstraction has 9663 states and 12376 transitions. [2024-10-10 23:50:44,932 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 119.0) internal successors, (357), 3 states have internal predecessors, (357), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-10 23:50:44,932 INFO L276 IsEmpty]: Start isEmpty. Operand 9663 states and 12376 transitions. [2024-10-10 23:50:44,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 417 [2024-10-10 23:50:44,938 INFO L207 NwaCegarLoop]: Found error trace [2024-10-10 23:50:44,939 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-10 23:50:44,939 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-10 23:50:44,939 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-10 23:50:44,939 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-10 23:50:44,939 INFO L85 PathProgramCache]: Analyzing trace with hash -302214231, now seen corresponding path program 1 times [2024-10-10 23:50:44,940 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-10 23:50:44,940 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [460680818] [2024-10-10 23:50:44,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-10 23:50:44,940 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-10 23:50:44,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-10 23:50:45,318 INFO L134 CoverageAnalysis]: Checked inductivity of 395 backedges. 331 proven. 0 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2024-10-10 23:50:45,318 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-10 23:50:45,318 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [460680818] [2024-10-10 23:50:45,319 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [460680818] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-10 23:50:45,319 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-10 23:50:45,319 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-10 23:50:45,319 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [189116734] [2024-10-10 23:50:45,320 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-10 23:50:45,320 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-10 23:50:45,320 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-10 23:50:45,321 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-10 23:50:45,321 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-10 23:50:45,322 INFO L87 Difference]: Start difference. First operand 9663 states and 12376 transitions. Second operand has 4 states, 4 states have (on average 88.5) internal successors, (354), 3 states have internal predecessors, (354), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-10 23:50:47,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-10 23:50:47,346 INFO L93 Difference]: Finished difference Result 20758 states and 26232 transitions. [2024-10-10 23:50:47,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-10 23:50:47,347 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 88.5) internal successors, (354), 3 states have internal predecessors, (354), 0 states have call successors, (0), 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 416 [2024-10-10 23:50:47,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-10 23:50:47,369 INFO L225 Difference]: With dead ends: 20758 [2024-10-10 23:50:47,369 INFO L226 Difference]: Without dead ends: 11733 [2024-10-10 23:50:47,378 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-10 23:50:47,380 INFO L432 NwaCegarLoop]: 623 mSDtfsCounter, 513 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 3038 mSolverCounterSat, 202 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 513 SdHoareTripleChecker+Valid, 637 SdHoareTripleChecker+Invalid, 3240 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 202 IncrementalHoareTripleChecker+Valid, 3038 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-10-10 23:50:47,381 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [513 Valid, 637 Invalid, 3240 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [202 Valid, 3038 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-10-10 23:50:47,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11733 states. [2024-10-10 23:50:47,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11733 to 11733. [2024-10-10 23:50:47,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11733 states, 11732 states have (on average 1.1783157176951926) internal successors, (13824), 11732 states have internal predecessors, (13824), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-10 23:50:47,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11733 states to 11733 states and 13824 transitions. [2024-10-10 23:50:47,503 INFO L78 Accepts]: Start accepts. Automaton has 11733 states and 13824 transitions. Word has length 416 [2024-10-10 23:50:47,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-10 23:50:47,504 INFO L471 AbstractCegarLoop]: Abstraction has 11733 states and 13824 transitions. [2024-10-10 23:50:47,504 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 88.5) internal successors, (354), 3 states have internal predecessors, (354), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-10 23:50:47,504 INFO L276 IsEmpty]: Start isEmpty. Operand 11733 states and 13824 transitions. [2024-10-10 23:50:47,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 444 [2024-10-10 23:50:47,509 INFO L207 NwaCegarLoop]: Found error trace [2024-10-10 23:50:47,510 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-10 23:50:47,510 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-10 23:50:47,510 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-10 23:50:47,510 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-10 23:50:47,510 INFO L85 PathProgramCache]: Analyzing trace with hash -1139980223, now seen corresponding path program 1 times [2024-10-10 23:50:47,510 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-10 23:50:47,511 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [111702703] [2024-10-10 23:50:47,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-10 23:50:47,511 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-10 23:50:47,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-10 23:50:47,897 INFO L134 CoverageAnalysis]: Checked inductivity of 191 backedges. 191 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-10 23:50:47,898 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-10 23:50:47,898 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [111702703] [2024-10-10 23:50:47,898 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [111702703] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-10 23:50:47,898 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-10 23:50:47,898 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-10 23:50:47,899 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [554524950] [2024-10-10 23:50:47,899 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-10 23:50:47,899 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-10 23:50:47,900 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-10 23:50:47,900 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-10 23:50:47,900 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-10 23:50:47,900 INFO L87 Difference]: Start difference. First operand 11733 states and 13824 transitions. Second operand has 3 states, 3 states have (on average 147.66666666666666) internal successors, (443), 3 states have internal predecessors, (443), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-10 23:50:49,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-10 23:50:49,508 INFO L93 Difference]: Finished difference Result 26915 states and 31730 transitions. [2024-10-10 23:50:49,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-10 23:50:49,509 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 147.66666666666666) internal successors, (443), 3 states have internal predecessors, (443), 0 states have call successors, (0), 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 443 [2024-10-10 23:50:49,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-10 23:50:49,531 INFO L225 Difference]: With dead ends: 26915 [2024-10-10 23:50:49,531 INFO L226 Difference]: Without dead ends: 15873 [2024-10-10 23:50:49,541 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-10 23:50:49,542 INFO L432 NwaCegarLoop]: 1116 mSDtfsCounter, 598 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 2080 mSolverCounterSat, 253 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 598 SdHoareTripleChecker+Valid, 1122 SdHoareTripleChecker+Invalid, 2333 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 253 IncrementalHoareTripleChecker+Valid, 2080 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-10-10 23:50:49,542 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [598 Valid, 1122 Invalid, 2333 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [253 Valid, 2080 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-10-10 23:50:49,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15873 states. [2024-10-10 23:50:49,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15873 to 15183. [2024-10-10 23:50:49,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15183 states, 15182 states have (on average 1.1580819391384534) internal successors, (17582), 15182 states have internal predecessors, (17582), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-10 23:50:49,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15183 states to 15183 states and 17582 transitions. [2024-10-10 23:50:49,684 INFO L78 Accepts]: Start accepts. Automaton has 15183 states and 17582 transitions. Word has length 443 [2024-10-10 23:50:49,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-10 23:50:49,685 INFO L471 AbstractCegarLoop]: Abstraction has 15183 states and 17582 transitions. [2024-10-10 23:50:49,685 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 147.66666666666666) internal successors, (443), 3 states have internal predecessors, (443), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-10 23:50:49,685 INFO L276 IsEmpty]: Start isEmpty. Operand 15183 states and 17582 transitions. [2024-10-10 23:50:49,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 449 [2024-10-10 23:50:49,688 INFO L207 NwaCegarLoop]: Found error trace [2024-10-10 23:50:49,688 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-10 23:50:49,688 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-10 23:50:49,689 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-10 23:50:49,689 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-10 23:50:49,689 INFO L85 PathProgramCache]: Analyzing trace with hash -1747104186, now seen corresponding path program 1 times [2024-10-10 23:50:49,689 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-10 23:50:49,689 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [409883638] [2024-10-10 23:50:49,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-10 23:50:49,690 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-10 23:50:49,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-10 23:50:49,935 INFO L134 CoverageAnalysis]: Checked inductivity of 196 backedges. 99 proven. 0 refuted. 0 times theorem prover too weak. 97 trivial. 0 not checked. [2024-10-10 23:50:49,936 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-10 23:50:49,936 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [409883638] [2024-10-10 23:50:49,936 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [409883638] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-10 23:50:49,936 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-10 23:50:49,936 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-10 23:50:49,937 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [44091968] [2024-10-10 23:50:49,937 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-10 23:50:49,937 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-10 23:50:49,937 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-10 23:50:49,938 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-10 23:50:49,938 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-10 23:50:49,938 INFO L87 Difference]: Start difference. First operand 15183 states and 17582 transitions. Second operand has 3 states, 3 states have (on average 117.33333333333333) internal successors, (352), 2 states have internal predecessors, (352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-10 23:50:51,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-10 23:50:51,467 INFO L93 Difference]: Finished difference Result 38645 states and 45557 transitions. [2024-10-10 23:50:51,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-10 23:50:51,467 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 117.33333333333333) internal successors, (352), 2 states have internal predecessors, (352), 0 states have call successors, (0), 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 448 [2024-10-10 23:50:51,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-10 23:50:51,503 INFO L225 Difference]: With dead ends: 38645 [2024-10-10 23:50:51,504 INFO L226 Difference]: Without dead ends: 24153 [2024-10-10 23:50:51,518 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-10 23:50:51,519 INFO L432 NwaCegarLoop]: 418 mSDtfsCounter, 398 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 1945 mSolverCounterSat, 393 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 398 SdHoareTripleChecker+Valid, 424 SdHoareTripleChecker+Invalid, 2338 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 393 IncrementalHoareTripleChecker+Valid, 1945 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-10-10 23:50:51,519 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [398 Valid, 424 Invalid, 2338 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [393 Valid, 1945 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-10-10 23:50:51,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24153 states. [2024-10-10 23:50:51,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24153 to 22773. [2024-10-10 23:50:51,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22773 states, 22772 states have (on average 1.1311259441419286) internal successors, (25758), 22772 states have internal predecessors, (25758), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-10 23:50:51,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22773 states to 22773 states and 25758 transitions. [2024-10-10 23:50:51,785 INFO L78 Accepts]: Start accepts. Automaton has 22773 states and 25758 transitions. Word has length 448 [2024-10-10 23:50:51,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-10 23:50:51,786 INFO L471 AbstractCegarLoop]: Abstraction has 22773 states and 25758 transitions. [2024-10-10 23:50:51,786 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 117.33333333333333) internal successors, (352), 2 states have internal predecessors, (352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-10 23:50:51,786 INFO L276 IsEmpty]: Start isEmpty. Operand 22773 states and 25758 transitions. [2024-10-10 23:50:51,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 451 [2024-10-10 23:50:51,788 INFO L207 NwaCegarLoop]: Found error trace [2024-10-10 23:50:51,789 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-10 23:50:51,789 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-10 23:50:51,789 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-10 23:50:51,789 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-10 23:50:51,789 INFO L85 PathProgramCache]: Analyzing trace with hash -1873116546, now seen corresponding path program 1 times [2024-10-10 23:50:51,789 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-10 23:50:51,790 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1255511022] [2024-10-10 23:50:51,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-10 23:50:51,790 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-10 23:50:51,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-10 23:50:52,323 INFO L134 CoverageAnalysis]: Checked inductivity of 191 backedges. 191 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-10 23:50:52,324 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-10 23:50:52,324 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1255511022] [2024-10-10 23:50:52,324 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1255511022] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-10 23:50:52,324 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-10 23:50:52,324 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-10 23:50:52,324 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1105935030] [2024-10-10 23:50:52,324 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-10 23:50:52,325 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-10 23:50:52,325 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-10 23:50:52,325 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-10 23:50:52,328 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-10 23:50:52,328 INFO L87 Difference]: Start difference. First operand 22773 states and 25758 transitions. Second operand has 4 states, 4 states have (on average 112.5) internal successors, (450), 3 states have internal predecessors, (450), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-10 23:50:54,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-10 23:50:54,359 INFO L93 Difference]: Finished difference Result 45545 states and 51550 transitions. [2024-10-10 23:50:54,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-10 23:50:54,360 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 112.5) internal successors, (450), 3 states have internal predecessors, (450), 0 states have call successors, (0), 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 450 [2024-10-10 23:50:54,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-10 23:50:54,386 INFO L225 Difference]: With dead ends: 45545 [2024-10-10 23:50:54,386 INFO L226 Difference]: Without dead ends: 23463 [2024-10-10 23:50:54,404 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-10 23:50:54,405 INFO L432 NwaCegarLoop]: 435 mSDtfsCounter, 1373 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 2799 mSolverCounterSat, 138 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1373 SdHoareTripleChecker+Valid, 446 SdHoareTripleChecker+Invalid, 2937 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 138 IncrementalHoareTripleChecker+Valid, 2799 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-10-10 23:50:54,405 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1373 Valid, 446 Invalid, 2937 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [138 Valid, 2799 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-10-10 23:50:54,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23463 states. [2024-10-10 23:50:54,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23463 to 23463. [2024-10-10 23:50:54,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23463 states, 23462 states have (on average 1.1250532776404398) internal successors, (26396), 23462 states have internal predecessors, (26396), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-10 23:50:54,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23463 states to 23463 states and 26396 transitions. [2024-10-10 23:50:54,728 INFO L78 Accepts]: Start accepts. Automaton has 23463 states and 26396 transitions. Word has length 450 [2024-10-10 23:50:54,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-10 23:50:54,729 INFO L471 AbstractCegarLoop]: Abstraction has 23463 states and 26396 transitions. [2024-10-10 23:50:54,729 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 112.5) internal successors, (450), 3 states have internal predecessors, (450), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-10 23:50:54,729 INFO L276 IsEmpty]: Start isEmpty. Operand 23463 states and 26396 transitions. [2024-10-10 23:50:54,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 980 [2024-10-10 23:50:54,737 INFO L207 NwaCegarLoop]: Found error trace [2024-10-10 23:50:54,738 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-10 23:50:54,738 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-10 23:50:54,738 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-10 23:50:54,739 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-10 23:50:54,739 INFO L85 PathProgramCache]: Analyzing trace with hash 2041917254, now seen corresponding path program 1 times [2024-10-10 23:50:54,739 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-10 23:50:54,739 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1553375067] [2024-10-10 23:50:54,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-10 23:50:54,739 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-10 23:50:54,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-10 23:50:55,367 INFO L134 CoverageAnalysis]: Checked inductivity of 674 backedges. 377 proven. 0 refuted. 0 times theorem prover too weak. 297 trivial. 0 not checked. [2024-10-10 23:50:55,368 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-10 23:50:55,368 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1553375067] [2024-10-10 23:50:55,368 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1553375067] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-10 23:50:55,368 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-10 23:50:55,368 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-10 23:50:55,368 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1126376051] [2024-10-10 23:50:55,368 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-10 23:50:55,369 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-10 23:50:55,369 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-10 23:50:55,370 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-10 23:50:55,370 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-10 23:50:55,370 INFO L87 Difference]: Start difference. First operand 23463 states and 26396 transitions. Second operand has 3 states, 3 states have (on average 227.66666666666666) internal successors, (683), 3 states have internal predecessors, (683), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-10 23:50:57,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-10 23:50:57,037 INFO L93 Difference]: Finished difference Result 55895 states and 63794 transitions. [2024-10-10 23:50:57,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-10 23:50:57,037 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 227.66666666666666) internal successors, (683), 3 states have internal predecessors, (683), 0 states have call successors, (0), 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 979 [2024-10-10 23:50:57,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-10 23:50:57,071 INFO L225 Difference]: With dead ends: 55895 [2024-10-10 23:50:57,071 INFO L226 Difference]: Without dead ends: 33123 [2024-10-10 23:50:57,091 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-10 23:50:57,091 INFO L432 NwaCegarLoop]: 227 mSDtfsCounter, 667 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 1898 mSolverCounterSat, 465 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 667 SdHoareTripleChecker+Valid, 232 SdHoareTripleChecker+Invalid, 2363 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 465 IncrementalHoareTripleChecker+Valid, 1898 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-10-10 23:50:57,092 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [667 Valid, 232 Invalid, 2363 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [465 Valid, 1898 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-10-10 23:50:57,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33123 states. [2024-10-10 23:50:57,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33123 to 33123. [2024-10-10 23:50:57,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33123 states, 33122 states have (on average 1.12408670973975) internal successors, (37232), 33122 states have internal predecessors, (37232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-10 23:50:57,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33123 states to 33123 states and 37232 transitions. [2024-10-10 23:50:57,402 INFO L78 Accepts]: Start accepts. Automaton has 33123 states and 37232 transitions. Word has length 979 [2024-10-10 23:50:57,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-10 23:50:57,402 INFO L471 AbstractCegarLoop]: Abstraction has 33123 states and 37232 transitions. [2024-10-10 23:50:57,403 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 227.66666666666666) internal successors, (683), 3 states have internal predecessors, (683), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-10 23:50:57,403 INFO L276 IsEmpty]: Start isEmpty. Operand 33123 states and 37232 transitions. [2024-10-10 23:50:57,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1055 [2024-10-10 23:50:57,409 INFO L207 NwaCegarLoop]: Found error trace [2024-10-10 23:50:57,410 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-10 23:50:57,410 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-10 23:50:57,410 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-10 23:50:57,411 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-10 23:50:57,411 INFO L85 PathProgramCache]: Analyzing trace with hash -233291665, now seen corresponding path program 1 times [2024-10-10 23:50:57,411 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-10 23:50:57,411 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [31920535] [2024-10-10 23:50:57,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-10 23:50:57,411 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-10 23:50:57,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-10 23:50:57,795 INFO L134 CoverageAnalysis]: Checked inductivity of 817 backedges. 149 proven. 0 refuted. 0 times theorem prover too weak. 668 trivial. 0 not checked. [2024-10-10 23:50:57,795 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-10 23:50:57,795 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [31920535] [2024-10-10 23:50:57,795 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [31920535] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-10 23:50:57,795 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-10 23:50:57,795 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-10 23:50:57,795 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [453146283] [2024-10-10 23:50:57,795 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-10 23:50:57,796 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-10 23:50:57,796 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-10 23:50:57,796 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-10 23:50:57,797 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-10 23:50:57,797 INFO L87 Difference]: Start difference. First operand 33123 states and 37232 transitions. Second operand has 3 states, 3 states have (on average 189.66666666666666) internal successors, (569), 3 states have internal predecessors, (569), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-10 23:50:59,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-10 23:50:59,238 INFO L93 Difference]: Finished difference Result 72455 states and 81772 transitions. [2024-10-10 23:50:59,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-10 23:50:59,239 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 189.66666666666666) internal successors, (569), 3 states have internal predecessors, (569), 0 states have call successors, (0), 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 1054 [2024-10-10 23:50:59,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-10 23:50:59,276 INFO L225 Difference]: With dead ends: 72455 [2024-10-10 23:50:59,277 INFO L226 Difference]: Without dead ends: 40023 [2024-10-10 23:50:59,300 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-10 23:50:59,300 INFO L432 NwaCegarLoop]: 281 mSDtfsCounter, 714 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 1868 mSolverCounterSat, 253 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 714 SdHoareTripleChecker+Valid, 287 SdHoareTripleChecker+Invalid, 2121 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 253 IncrementalHoareTripleChecker+Valid, 1868 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-10-10 23:50:59,301 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [714 Valid, 287 Invalid, 2121 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [253 Valid, 1868 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-10-10 23:50:59,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40023 states. [2024-10-10 23:50:59,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40023 to 33123. [2024-10-10 23:50:59,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33123 states, 33122 states have (on average 1.12408670973975) internal successors, (37232), 33122 states have internal predecessors, (37232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-10 23:50:59,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33123 states to 33123 states and 37232 transitions. [2024-10-10 23:50:59,799 INFO L78 Accepts]: Start accepts. Automaton has 33123 states and 37232 transitions. Word has length 1054 [2024-10-10 23:50:59,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-10 23:50:59,800 INFO L471 AbstractCegarLoop]: Abstraction has 33123 states and 37232 transitions. [2024-10-10 23:50:59,800 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 189.66666666666666) internal successors, (569), 3 states have internal predecessors, (569), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-10 23:50:59,800 INFO L276 IsEmpty]: Start isEmpty. Operand 33123 states and 37232 transitions. [2024-10-10 23:50:59,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1098 [2024-10-10 23:50:59,815 INFO L207 NwaCegarLoop]: Found error trace [2024-10-10 23:50:59,816 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-10 23:50:59,816 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-10 23:50:59,816 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-10 23:50:59,816 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-10 23:50:59,817 INFO L85 PathProgramCache]: Analyzing trace with hash 579928328, now seen corresponding path program 1 times [2024-10-10 23:50:59,817 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-10 23:50:59,817 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [377575477] [2024-10-10 23:50:59,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-10 23:50:59,817 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-10 23:50:59,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-10 23:51:01,566 INFO L134 CoverageAnalysis]: Checked inductivity of 1052 backedges. 586 proven. 326 refuted. 0 times theorem prover too weak. 140 trivial. 0 not checked. [2024-10-10 23:51:01,567 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-10 23:51:01,567 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [377575477] [2024-10-10 23:51:01,567 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [377575477] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-10 23:51:01,567 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2086804986] [2024-10-10 23:51:01,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-10 23:51:01,567 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-10 23:51:01,568 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-10 23:51:01,570 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-10 23:51:01,571 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-10 23:51:01,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-10 23:51:01,816 INFO L255 TraceCheckSpWp]: Trace formula consists of 1254 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-10 23:51:01,833 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-10 23:51:02,920 INFO L134 CoverageAnalysis]: Checked inductivity of 1052 backedges. 477 proven. 0 refuted. 0 times theorem prover too weak. 575 trivial. 0 not checked. [2024-10-10 23:51:02,920 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-10 23:51:02,920 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2086804986] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-10 23:51:02,920 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-10 23:51:02,921 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 9 [2024-10-10 23:51:02,921 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1720322137] [2024-10-10 23:51:02,921 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-10 23:51:02,922 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-10 23:51:02,922 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-10 23:51:02,922 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-10 23:51:02,923 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2024-10-10 23:51:02,923 INFO L87 Difference]: Start difference. First operand 33123 states and 37232 transitions. Second operand has 4 states, 4 states have (on average 165.5) internal successors, (662), 3 states have internal predecessors, (662), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-10 23:51:05,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-10 23:51:05,540 INFO L93 Difference]: Finished difference Result 87635 states and 99848 transitions. [2024-10-10 23:51:05,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-10 23:51:05,541 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 165.5) internal successors, (662), 3 states have internal predecessors, (662), 0 states have call successors, (0), 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 1097 [2024-10-10 23:51:05,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-10 23:51:05,604 INFO L225 Difference]: With dead ends: 87635 [2024-10-10 23:51:05,604 INFO L226 Difference]: Without dead ends: 55203 [2024-10-10 23:51:05,630 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1103 GetRequests, 1095 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2024-10-10 23:51:05,631 INFO L432 NwaCegarLoop]: 75 mSDtfsCounter, 841 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 2800 mSolverCounterSat, 1114 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 841 SdHoareTripleChecker+Valid, 85 SdHoareTripleChecker+Invalid, 3914 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1114 IncrementalHoareTripleChecker+Valid, 2800 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-10-10 23:51:05,631 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [841 Valid, 85 Invalid, 3914 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1114 Valid, 2800 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-10-10 23:51:05,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55203 states. [2024-10-10 23:51:06,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55203 to 46233. [2024-10-10 23:51:06,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46233 states, 46232 states have (on average 1.1373291226855857) internal successors, (52581), 46232 states have internal predecessors, (52581), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-10 23:51:06,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46233 states to 46233 states and 52581 transitions. [2024-10-10 23:51:06,090 INFO L78 Accepts]: Start accepts. Automaton has 46233 states and 52581 transitions. Word has length 1097 [2024-10-10 23:51:06,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-10 23:51:06,091 INFO L471 AbstractCegarLoop]: Abstraction has 46233 states and 52581 transitions. [2024-10-10 23:51:06,091 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 165.5) internal successors, (662), 3 states have internal predecessors, (662), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-10 23:51:06,091 INFO L276 IsEmpty]: Start isEmpty. Operand 46233 states and 52581 transitions. [2024-10-10 23:51:06,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1184 [2024-10-10 23:51:06,101 INFO L207 NwaCegarLoop]: Found error trace [2024-10-10 23:51:06,102 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-10 23:51:06,117 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-10-10 23:51:06,302 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-10-10 23:51:06,303 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-10 23:51:06,303 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-10 23:51:06,303 INFO L85 PathProgramCache]: Analyzing trace with hash -732991471, now seen corresponding path program 1 times [2024-10-10 23:51:06,303 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-10 23:51:06,303 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1694438928] [2024-10-10 23:51:06,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-10 23:51:06,304 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-10 23:51:06,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-10 23:51:08,793 INFO L134 CoverageAnalysis]: Checked inductivity of 1445 backedges. 465 proven. 894 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2024-10-10 23:51:08,793 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-10 23:51:08,793 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1694438928] [2024-10-10 23:51:08,794 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1694438928] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-10 23:51:08,794 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1330197608] [2024-10-10 23:51:08,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-10 23:51:08,794 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-10 23:51:08,794 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-10 23:51:08,795 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-10 23:51:08,796 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-10 23:51:09,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-10 23:51:09,078 INFO L255 TraceCheckSpWp]: Trace formula consists of 1364 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-10 23:51:09,092 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-10 23:51:09,198 INFO L134 CoverageAnalysis]: Checked inductivity of 1445 backedges. 820 proven. 0 refuted. 0 times theorem prover too weak. 625 trivial. 0 not checked. [2024-10-10 23:51:09,198 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-10 23:51:09,198 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1330197608] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-10 23:51:09,198 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-10 23:51:09,199 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [8] total 10 [2024-10-10 23:51:09,200 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [735315522] [2024-10-10 23:51:09,201 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-10 23:51:09,201 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-10 23:51:09,201 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-10 23:51:09,202 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-10 23:51:09,202 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2024-10-10 23:51:09,203 INFO L87 Difference]: Start difference. First operand 46233 states and 52581 transitions. Second operand has 3 states, 3 states have (on average 233.0) internal successors, (699), 3 states have internal predecessors, (699), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-10 23:51:10,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-10 23:51:10,895 INFO L93 Difference]: Finished difference Result 101435 states and 115415 transitions. [2024-10-10 23:51:10,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-10 23:51:10,896 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 233.0) internal successors, (699), 3 states have internal predecessors, (699), 0 states have call successors, (0), 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 1183 [2024-10-10 23:51:10,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-10 23:51:10,955 INFO L225 Difference]: With dead ends: 101435 [2024-10-10 23:51:10,955 INFO L226 Difference]: Without dead ends: 55893 [2024-10-10 23:51:10,986 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1192 GetRequests, 1184 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2024-10-10 23:51:10,987 INFO L432 NwaCegarLoop]: 1115 mSDtfsCounter, 605 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 2062 mSolverCounterSat, 243 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 605 SdHoareTripleChecker+Valid, 1121 SdHoareTripleChecker+Invalid, 2305 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 243 IncrementalHoareTripleChecker+Valid, 2062 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-10-10 23:51:10,987 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [605 Valid, 1121 Invalid, 2305 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [243 Valid, 2062 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-10-10 23:51:11,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55893 states. [2024-10-10 23:51:11,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55893 to 55203. [2024-10-10 23:51:11,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55203 states, 55202 states have (on average 1.1279663780297815) internal successors, (62266), 55202 states have internal predecessors, (62266), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-10 23:51:11,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55203 states to 55203 states and 62266 transitions. [2024-10-10 23:51:11,427 INFO L78 Accepts]: Start accepts. Automaton has 55203 states and 62266 transitions. Word has length 1183 [2024-10-10 23:51:11,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-10 23:51:11,427 INFO L471 AbstractCegarLoop]: Abstraction has 55203 states and 62266 transitions. [2024-10-10 23:51:11,427 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 233.0) internal successors, (699), 3 states have internal predecessors, (699), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-10 23:51:11,428 INFO L276 IsEmpty]: Start isEmpty. Operand 55203 states and 62266 transitions. [2024-10-10 23:51:11,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1191 [2024-10-10 23:51:11,436 INFO L207 NwaCegarLoop]: Found error trace [2024-10-10 23:51:11,437 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-10 23:51:11,451 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-10-10 23:51:11,637 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,3 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-10 23:51:11,638 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-10 23:51:11,638 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-10 23:51:11,638 INFO L85 PathProgramCache]: Analyzing trace with hash 796936913, now seen corresponding path program 1 times [2024-10-10 23:51:11,638 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-10 23:51:11,639 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [149348304] [2024-10-10 23:51:11,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-10 23:51:11,639 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-10 23:51:11,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-10 23:51:12,312 INFO L134 CoverageAnalysis]: Checked inductivity of 1452 backedges. 662 proven. 0 refuted. 0 times theorem prover too weak. 790 trivial. 0 not checked. [2024-10-10 23:51:12,312 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-10 23:51:12,312 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [149348304] [2024-10-10 23:51:12,313 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [149348304] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-10 23:51:12,313 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-10 23:51:12,313 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-10 23:51:12,313 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1938026762] [2024-10-10 23:51:12,313 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-10 23:51:12,314 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-10 23:51:12,314 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-10 23:51:12,315 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-10 23:51:12,315 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-10 23:51:12,315 INFO L87 Difference]: Start difference. First operand 55203 states and 62266 transitions. Second operand has 4 states, 4 states have (on average 171.0) internal successors, (684), 4 states have internal predecessors, (684), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-10 23:51:15,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-10 23:51:15,570 INFO L93 Difference]: Finished difference Result 132485 states and 150442 transitions. [2024-10-10 23:51:15,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-10 23:51:15,571 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 171.0) internal successors, (684), 4 states have internal predecessors, (684), 0 states have call successors, (0), 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 1190 [2024-10-10 23:51:15,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-10 23:51:15,649 INFO L225 Difference]: With dead ends: 132485 [2024-10-10 23:51:15,650 INFO L226 Difference]: Without dead ends: 77973 [2024-10-10 23:51:15,687 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-10 23:51:15,688 INFO L432 NwaCegarLoop]: 250 mSDtfsCounter, 1376 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 4260 mSolverCounterSat, 698 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1376 SdHoareTripleChecker+Valid, 261 SdHoareTripleChecker+Invalid, 4958 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 698 IncrementalHoareTripleChecker+Valid, 4260 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2024-10-10 23:51:15,688 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1376 Valid, 261 Invalid, 4958 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [698 Valid, 4260 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2024-10-10 23:51:15,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77973 states. [2024-10-10 23:51:16,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77973 to 69003. [2024-10-10 23:51:16,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69003 states, 69002 states have (on average 1.1394452334714935) internal successors, (78624), 69002 states have internal predecessors, (78624), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-10 23:51:16,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69003 states to 69003 states and 78624 transitions. [2024-10-10 23:51:16,463 INFO L78 Accepts]: Start accepts. Automaton has 69003 states and 78624 transitions. Word has length 1190 [2024-10-10 23:51:16,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-10 23:51:16,464 INFO L471 AbstractCegarLoop]: Abstraction has 69003 states and 78624 transitions. [2024-10-10 23:51:16,464 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 171.0) internal successors, (684), 4 states have internal predecessors, (684), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-10 23:51:16,464 INFO L276 IsEmpty]: Start isEmpty. Operand 69003 states and 78624 transitions. [2024-10-10 23:51:16,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1205 [2024-10-10 23:51:16,473 INFO L207 NwaCegarLoop]: Found error trace [2024-10-10 23:51:16,474 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-10 23:51:16,474 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-10-10 23:51:16,474 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-10 23:51:16,474 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-10 23:51:16,475 INFO L85 PathProgramCache]: Analyzing trace with hash 624734057, now seen corresponding path program 1 times [2024-10-10 23:51:16,475 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-10 23:51:16,475 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2117458236] [2024-10-10 23:51:16,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-10 23:51:16,475 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-10 23:51:16,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-10 23:51:19,139 INFO L134 CoverageAnalysis]: Checked inductivity of 1515 backedges. 550 proven. 858 refuted. 0 times theorem prover too weak. 107 trivial. 0 not checked. [2024-10-10 23:51:19,139 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-10 23:51:19,139 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2117458236] [2024-10-10 23:51:19,140 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2117458236] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-10 23:51:19,140 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2022066973] [2024-10-10 23:51:19,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-10 23:51:19,140 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-10 23:51:19,140 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-10 23:51:19,142 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-10 23:51:19,146 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-10 23:51:19,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-10 23:51:19,422 INFO L255 TraceCheckSpWp]: Trace formula consists of 1383 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-10 23:51:19,437 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-10 23:51:19,715 INFO L134 CoverageAnalysis]: Checked inductivity of 1515 backedges. 620 proven. 0 refuted. 0 times theorem prover too weak. 895 trivial. 0 not checked. [2024-10-10 23:51:19,715 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-10 23:51:19,715 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2022066973] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-10 23:51:19,715 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-10 23:51:19,716 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [8] total 10 [2024-10-10 23:51:19,716 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [41817767] [2024-10-10 23:51:19,716 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-10 23:51:19,717 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-10 23:51:19,717 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-10 23:51:19,718 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-10 23:51:19,718 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2024-10-10 23:51:19,718 INFO L87 Difference]: Start difference. First operand 69003 states and 78624 transitions. Second operand has 3 states, 3 states have (on average 221.0) internal successors, (663), 3 states have internal predecessors, (663), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-10 23:51:21,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-10 23:51:21,483 INFO L93 Difference]: Finished difference Result 136625 states and 155849 transitions. [2024-10-10 23:51:21,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-10 23:51:21,483 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 221.0) internal successors, (663), 3 states have internal predecessors, (663), 0 states have call successors, (0), 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 1204 [2024-10-10 23:51:21,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-10 23:51:21,562 INFO L225 Difference]: With dead ends: 136625 [2024-10-10 23:51:21,563 INFO L226 Difference]: Without dead ends: 68313 [2024-10-10 23:51:21,604 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1213 GetRequests, 1205 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2024-10-10 23:51:21,605 INFO L432 NwaCegarLoop]: 1126 mSDtfsCounter, 598 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 1850 mSolverCounterSat, 357 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 598 SdHoareTripleChecker+Valid, 1132 SdHoareTripleChecker+Invalid, 2207 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 357 IncrementalHoareTripleChecker+Valid, 1850 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-10-10 23:51:21,605 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [598 Valid, 1132 Invalid, 2207 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [357 Valid, 1850 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-10-10 23:51:21,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68313 states. [2024-10-10 23:51:22,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68313 to 66933. [2024-10-10 23:51:22,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66933 states, 66932 states have (on average 1.131237674057252) internal successors, (75716), 66932 states have internal predecessors, (75716), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-10 23:51:22,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66933 states to 66933 states and 75716 transitions. [2024-10-10 23:51:22,198 INFO L78 Accepts]: Start accepts. Automaton has 66933 states and 75716 transitions. Word has length 1204 [2024-10-10 23:51:22,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-10 23:51:22,199 INFO L471 AbstractCegarLoop]: Abstraction has 66933 states and 75716 transitions. [2024-10-10 23:51:22,199 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 221.0) internal successors, (663), 3 states have internal predecessors, (663), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-10 23:51:22,199 INFO L276 IsEmpty]: Start isEmpty. Operand 66933 states and 75716 transitions. [2024-10-10 23:51:22,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1282 [2024-10-10 23:51:22,209 INFO L207 NwaCegarLoop]: Found error trace [2024-10-10 23:51:22,209 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-10 23:51:22,222 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-10-10 23:51:22,409 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15,4 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-10 23:51:22,410 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-10 23:51:22,410 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-10 23:51:22,410 INFO L85 PathProgramCache]: Analyzing trace with hash 1399048299, now seen corresponding path program 1 times [2024-10-10 23:51:22,410 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-10 23:51:22,411 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1823483134] [2024-10-10 23:51:22,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-10 23:51:22,411 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-10 23:51:22,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-10 23:51:23,915 INFO L134 CoverageAnalysis]: Checked inductivity of 1939 backedges. 765 proven. 933 refuted. 0 times theorem prover too weak. 241 trivial. 0 not checked. [2024-10-10 23:51:23,915 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-10 23:51:23,915 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1823483134] [2024-10-10 23:51:23,915 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1823483134] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-10 23:51:23,915 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [864471872] [2024-10-10 23:51:23,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-10 23:51:23,916 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-10 23:51:23,916 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-10 23:51:23,917 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-10 23:51:23,918 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-10-10 23:51:24,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-10 23:51:24,177 INFO L255 TraceCheckSpWp]: Trace formula consists of 1486 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-10 23:51:24,188 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-10 23:51:24,385 INFO L134 CoverageAnalysis]: Checked inductivity of 1939 backedges. 727 proven. 0 refuted. 0 times theorem prover too weak. 1212 trivial. 0 not checked. [2024-10-10 23:51:24,385 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-10 23:51:24,385 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [864471872] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-10 23:51:24,386 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-10 23:51:24,386 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 8 [2024-10-10 23:51:24,386 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [627358016] [2024-10-10 23:51:24,386 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-10 23:51:24,387 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-10 23:51:24,387 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-10 23:51:24,388 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-10 23:51:24,388 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-10-10 23:51:24,388 INFO L87 Difference]: Start difference. First operand 66933 states and 75716 transitions. Second operand has 3 states, 3 states have (on average 208.33333333333334) internal successors, (625), 3 states have internal predecessors, (625), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-10 23:51:25,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-10 23:51:25,982 INFO L93 Difference]: Finished difference Result 133175 states and 150740 transitions. [2024-10-10 23:51:25,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-10 23:51:25,983 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 208.33333333333334) internal successors, (625), 3 states have internal predecessors, (625), 0 states have call successors, (0), 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 1281 [2024-10-10 23:51:25,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-10 23:51:26,050 INFO L225 Difference]: With dead ends: 133175 [2024-10-10 23:51:26,050 INFO L226 Difference]: Without dead ends: 66933 [2024-10-10 23:51:26,092 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1287 GetRequests, 1281 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-10-10 23:51:26,093 INFO L432 NwaCegarLoop]: 771 mSDtfsCounter, 691 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 1975 mSolverCounterSat, 191 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 691 SdHoareTripleChecker+Valid, 777 SdHoareTripleChecker+Invalid, 2166 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 191 IncrementalHoareTripleChecker+Valid, 1975 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-10-10 23:51:26,093 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [691 Valid, 777 Invalid, 2166 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [191 Valid, 1975 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-10-10 23:51:26,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66933 states. [2024-10-10 23:51:26,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66933 to 66243. [2024-10-10 23:51:26,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66243 states, 66242 states have (on average 1.1156064128498535) internal successors, (73900), 66242 states have internal predecessors, (73900), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-10 23:51:26,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66243 states to 66243 states and 73900 transitions. [2024-10-10 23:51:26,999 INFO L78 Accepts]: Start accepts. Automaton has 66243 states and 73900 transitions. Word has length 1281 [2024-10-10 23:51:27,000 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-10 23:51:27,000 INFO L471 AbstractCegarLoop]: Abstraction has 66243 states and 73900 transitions. [2024-10-10 23:51:27,000 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 208.33333333333334) internal successors, (625), 3 states have internal predecessors, (625), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-10 23:51:27,000 INFO L276 IsEmpty]: Start isEmpty. Operand 66243 states and 73900 transitions. [2024-10-10 23:51:27,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1282 [2024-10-10 23:51:27,011 INFO L207 NwaCegarLoop]: Found error trace [2024-10-10 23:51:27,011 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-10 23:51:27,024 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-10-10 23:51:27,211 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-10-10 23:51:27,212 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-10 23:51:27,213 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-10 23:51:27,213 INFO L85 PathProgramCache]: Analyzing trace with hash -2001768136, now seen corresponding path program 1 times [2024-10-10 23:51:27,213 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-10 23:51:27,213 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1348373615] [2024-10-10 23:51:27,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-10 23:51:27,213 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-10 23:51:27,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-10 23:51:28,443 INFO L134 CoverageAnalysis]: Checked inductivity of 1938 backedges. 625 proven. 15 refuted. 0 times theorem prover too weak. 1298 trivial. 0 not checked. [2024-10-10 23:51:28,444 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-10 23:51:28,444 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1348373615] [2024-10-10 23:51:28,444 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1348373615] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-10 23:51:28,444 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1457426003] [2024-10-10 23:51:28,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-10 23:51:28,444 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-10 23:51:28,444 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-10 23:51:28,448 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-10 23:51:28,449 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-10-10 23:51:28,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-10 23:51:28,672 INFO L255 TraceCheckSpWp]: Trace formula consists of 1489 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-10 23:51:28,683 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-10 23:51:28,760 INFO L134 CoverageAnalysis]: Checked inductivity of 1938 backedges. 628 proven. 0 refuted. 0 times theorem prover too weak. 1310 trivial. 0 not checked. [2024-10-10 23:51:28,760 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-10 23:51:28,760 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1457426003] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-10 23:51:28,760 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-10 23:51:28,761 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2024-10-10 23:51:28,761 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1317785126] [2024-10-10 23:51:28,761 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-10 23:51:28,762 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-10 23:51:28,762 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-10 23:51:28,762 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-10 23:51:28,762 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-10 23:51:28,762 INFO L87 Difference]: Start difference. First operand 66243 states and 73900 transitions. Second operand has 3 states, 3 states have (on average 212.33333333333334) internal successors, (637), 3 states have internal predecessors, (637), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-10 23:51:30,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-10 23:51:30,564 INFO L93 Difference]: Finished difference Result 157325 states and 177003 transitions. [2024-10-10 23:51:30,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-10 23:51:30,565 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 212.33333333333334) internal successors, (637), 3 states have internal predecessors, (637), 0 states have call successors, (0), 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 1281 [2024-10-10 23:51:30,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-10 23:51:30,653 INFO L225 Difference]: With dead ends: 157325 [2024-10-10 23:51:30,653 INFO L226 Difference]: Without dead ends: 80733 [2024-10-10 23:51:30,691 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1284 GetRequests, 1281 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-10 23:51:30,691 INFO L432 NwaCegarLoop]: 965 mSDtfsCounter, 673 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 1704 mSolverCounterSat, 568 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 673 SdHoareTripleChecker+Valid, 970 SdHoareTripleChecker+Invalid, 2272 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 568 IncrementalHoareTripleChecker+Valid, 1704 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-10-10 23:51:30,692 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [673 Valid, 970 Invalid, 2272 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [568 Valid, 1704 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-10-10 23:51:30,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80733 states. [2024-10-10 23:51:31,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80733 to 75903. [2024-10-10 23:51:31,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75903 states, 75902 states have (on average 1.0817633263945614) internal successors, (82108), 75902 states have internal predecessors, (82108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-10 23:51:31,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75903 states to 75903 states and 82108 transitions. [2024-10-10 23:51:31,455 INFO L78 Accepts]: Start accepts. Automaton has 75903 states and 82108 transitions. Word has length 1281 [2024-10-10 23:51:31,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-10 23:51:31,456 INFO L471 AbstractCegarLoop]: Abstraction has 75903 states and 82108 transitions. [2024-10-10 23:51:31,456 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 212.33333333333334) internal successors, (637), 3 states have internal predecessors, (637), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-10 23:51:31,456 INFO L276 IsEmpty]: Start isEmpty. Operand 75903 states and 82108 transitions. [2024-10-10 23:51:31,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1290 [2024-10-10 23:51:31,465 INFO L207 NwaCegarLoop]: Found error trace [2024-10-10 23:51:31,466 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-10 23:51:31,479 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-10-10 23:51:31,666 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-10-10 23:51:31,666 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-10 23:51:31,667 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-10 23:51:31,667 INFO L85 PathProgramCache]: Analyzing trace with hash 1197120676, now seen corresponding path program 1 times [2024-10-10 23:51:31,667 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-10 23:51:31,667 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [973144151] [2024-10-10 23:51:31,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-10 23:51:31,667 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-10 23:51:31,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-10 23:51:32,420 INFO L134 CoverageAnalysis]: Checked inductivity of 1978 backedges. 668 proven. 0 refuted. 0 times theorem prover too weak. 1310 trivial. 0 not checked. [2024-10-10 23:51:32,420 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-10 23:51:32,420 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [973144151] [2024-10-10 23:51:32,420 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [973144151] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-10 23:51:32,420 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-10 23:51:32,420 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-10 23:51:32,420 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1615991615] [2024-10-10 23:51:32,420 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-10 23:51:32,421 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-10 23:51:32,421 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-10 23:51:32,422 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-10 23:51:32,422 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-10 23:51:32,422 INFO L87 Difference]: Start difference. First operand 75903 states and 82108 transitions. Second operand has 3 states, 3 states have (on average 215.0) internal successors, (645), 3 states have internal predecessors, (645), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-10 23:51:33,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-10 23:51:33,836 INFO L93 Difference]: Finished difference Result 164915 states and 178818 transitions. [2024-10-10 23:51:33,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-10 23:51:33,836 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 215.0) internal successors, (645), 3 states have internal predecessors, (645), 0 states have call successors, (0), 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 1289 [2024-10-10 23:51:33,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-10 23:51:33,924 INFO L225 Difference]: With dead ends: 164915 [2024-10-10 23:51:33,924 INFO L226 Difference]: Without dead ends: 89013 [2024-10-10 23:51:33,972 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-10 23:51:33,972 INFO L432 NwaCegarLoop]: 968 mSDtfsCounter, 634 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 1725 mSolverCounterSat, 137 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 634 SdHoareTripleChecker+Valid, 974 SdHoareTripleChecker+Invalid, 1862 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 137 IncrementalHoareTripleChecker+Valid, 1725 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-10-10 23:51:33,972 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [634 Valid, 974 Invalid, 1862 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [137 Valid, 1725 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-10-10 23:51:34,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89013 states. [2024-10-10 23:51:34,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89013 to 87633. [2024-10-10 23:51:34,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87633 states, 87632 states have (on average 1.0775173452620048) internal successors, (94425), 87632 states have internal predecessors, (94425), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-10 23:51:35,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87633 states to 87633 states and 94425 transitions. [2024-10-10 23:51:35,031 INFO L78 Accepts]: Start accepts. Automaton has 87633 states and 94425 transitions. Word has length 1289 [2024-10-10 23:51:35,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-10 23:51:35,032 INFO L471 AbstractCegarLoop]: Abstraction has 87633 states and 94425 transitions. [2024-10-10 23:51:35,032 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 215.0) internal successors, (645), 3 states have internal predecessors, (645), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-10 23:51:35,032 INFO L276 IsEmpty]: Start isEmpty. Operand 87633 states and 94425 transitions. [2024-10-10 23:51:35,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1299 [2024-10-10 23:51:35,053 INFO L207 NwaCegarLoop]: Found error trace [2024-10-10 23:51:35,053 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-10 23:51:35,053 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-10-10 23:51:35,054 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-10 23:51:35,054 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-10 23:51:35,054 INFO L85 PathProgramCache]: Analyzing trace with hash -545131842, now seen corresponding path program 1 times [2024-10-10 23:51:35,054 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-10 23:51:35,054 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1830543037] [2024-10-10 23:51:35,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-10 23:51:35,055 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-10 23:51:35,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-10 23:51:36,219 INFO L134 CoverageAnalysis]: Checked inductivity of 1763 backedges. 1081 proven. 107 refuted. 0 times theorem prover too weak. 575 trivial. 0 not checked. [2024-10-10 23:51:36,219 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-10 23:51:36,219 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1830543037] [2024-10-10 23:51:36,219 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1830543037] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-10 23:51:36,219 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1899184299] [2024-10-10 23:51:36,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-10 23:51:36,220 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-10 23:51:36,220 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-10 23:51:36,221 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-10 23:51:36,221 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-10-10 23:51:36,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-10 23:51:36,475 INFO L255 TraceCheckSpWp]: Trace formula consists of 1480 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-10 23:51:36,483 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-10 23:51:36,819 INFO L134 CoverageAnalysis]: Checked inductivity of 1763 backedges. 1081 proven. 107 refuted. 0 times theorem prover too weak. 575 trivial. 0 not checked. [2024-10-10 23:51:36,820 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-10 23:51:37,205 INFO L134 CoverageAnalysis]: Checked inductivity of 1763 backedges. 1188 proven. 0 refuted. 0 times theorem prover too weak. 575 trivial. 0 not checked. [2024-10-10 23:51:37,206 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1899184299] provided 1 perfect and 1 imperfect interpolant sequences [2024-10-10 23:51:37,206 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-10-10 23:51:37,206 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5, 5] total 10 [2024-10-10 23:51:37,206 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [641662584] [2024-10-10 23:51:37,206 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-10 23:51:37,207 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-10 23:51:37,207 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-10 23:51:37,208 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-10 23:51:37,208 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=45, Unknown=0, NotChecked=0, Total=90 [2024-10-10 23:51:37,208 INFO L87 Difference]: Start difference. First operand 87633 states and 94425 transitions. Second operand has 5 states, 5 states have (on average 172.6) internal successors, (863), 5 states have internal predecessors, (863), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-10 23:51:39,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-10 23:51:39,136 INFO L93 Difference]: Finished difference Result 178715 states and 192750 transitions. [2024-10-10 23:51:39,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-10 23:51:39,137 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 172.6) internal successors, (863), 5 states have internal predecessors, (863), 0 states have call successors, (0), 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 1298 [2024-10-10 23:51:39,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-10 23:51:39,221 INFO L225 Difference]: With dead ends: 178715 [2024-10-10 23:51:39,221 INFO L226 Difference]: Without dead ends: 91083 [2024-10-10 23:51:39,277 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2599 GetRequests, 2591 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=45, Invalid=45, Unknown=0, NotChecked=0, Total=90 [2024-10-10 23:51:39,277 INFO L432 NwaCegarLoop]: 6 mSDtfsCounter, 1721 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 2071 mSolverCounterSat, 570 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1721 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 2641 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 570 IncrementalHoareTripleChecker+Valid, 2071 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-10-10 23:51:39,278 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1721 Valid, 12 Invalid, 2641 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [570 Valid, 2071 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-10-10 23:51:39,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91083 states. [2024-10-10 23:51:40,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91083 to 86253. [2024-10-10 23:51:40,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86253 states, 86252 states have (on average 1.0722881788248388) internal successors, (92487), 86252 states have internal predecessors, (92487), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-10 23:51:40,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86253 states to 86253 states and 92487 transitions. [2024-10-10 23:51:40,301 INFO L78 Accepts]: Start accepts. Automaton has 86253 states and 92487 transitions. Word has length 1298 [2024-10-10 23:51:40,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-10 23:51:40,302 INFO L471 AbstractCegarLoop]: Abstraction has 86253 states and 92487 transitions. [2024-10-10 23:51:40,302 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 172.6) internal successors, (863), 5 states have internal predecessors, (863), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-10 23:51:40,302 INFO L276 IsEmpty]: Start isEmpty. Operand 86253 states and 92487 transitions. [2024-10-10 23:51:40,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1356 [2024-10-10 23:51:40,324 INFO L207 NwaCegarLoop]: Found error trace [2024-10-10 23:51:40,325 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-10 23:51:40,338 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-10-10 23:51:40,525 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable19 [2024-10-10 23:51:40,525 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-10 23:51:40,526 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-10 23:51:40,526 INFO L85 PathProgramCache]: Analyzing trace with hash -1839944736, now seen corresponding path program 1 times [2024-10-10 23:51:40,526 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-10 23:51:40,526 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [633860892] [2024-10-10 23:51:40,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-10 23:51:40,527 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-10 23:51:40,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-10 23:51:42,066 INFO L134 CoverageAnalysis]: Checked inductivity of 2425 backedges. 1201 proven. 933 refuted. 0 times theorem prover too weak. 291 trivial. 0 not checked. [2024-10-10 23:51:42,067 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-10 23:51:42,067 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [633860892] [2024-10-10 23:51:42,067 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [633860892] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-10 23:51:42,067 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [376100759] [2024-10-10 23:51:42,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-10 23:51:42,067 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-10 23:51:42,067 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-10 23:51:42,069 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-10 23:51:42,070 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-10-10 23:51:42,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-10 23:51:42,333 INFO L255 TraceCheckSpWp]: Trace formula consists of 1583 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-10 23:51:42,341 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-10 23:51:42,448 INFO L134 CoverageAnalysis]: Checked inductivity of 2425 backedges. 1213 proven. 0 refuted. 0 times theorem prover too weak. 1212 trivial. 0 not checked. [2024-10-10 23:51:42,448 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-10 23:51:42,448 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [376100759] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-10 23:51:42,448 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-10 23:51:42,449 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 8 [2024-10-10 23:51:42,449 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1012209439] [2024-10-10 23:51:42,449 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-10 23:51:42,450 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-10 23:51:42,450 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-10 23:51:42,450 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-10 23:51:42,450 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-10-10 23:51:42,451 INFO L87 Difference]: Start difference. First operand 86253 states and 92487 transitions. Second operand has 3 states, 3 states have (on average 233.0) internal successors, (699), 3 states have internal predecessors, (699), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-10 23:51:44,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-10 23:51:44,097 INFO L93 Difference]: Finished difference Result 201485 states and 216745 transitions. [2024-10-10 23:51:44,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-10 23:51:44,097 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 233.0) internal successors, (699), 3 states have internal predecessors, (699), 0 states have call successors, (0), 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 1355 [2024-10-10 23:51:44,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-10 23:51:44,217 INFO L225 Difference]: With dead ends: 201485 [2024-10-10 23:51:44,217 INFO L226 Difference]: Without dead ends: 115923 [2024-10-10 23:51:44,274 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1361 GetRequests, 1355 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-10-10 23:51:44,275 INFO L432 NwaCegarLoop]: 182 mSDtfsCounter, 634 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 1757 mSolverCounterSat, 235 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 634 SdHoareTripleChecker+Valid, 187 SdHoareTripleChecker+Invalid, 1992 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 235 IncrementalHoareTripleChecker+Valid, 1757 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-10-10 23:51:44,275 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [634 Valid, 187 Invalid, 1992 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [235 Valid, 1757 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-10-10 23:51:44,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115923 states. [2024-10-10 23:51:45,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115923 to 112473. [2024-10-10 23:51:45,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 112473 states, 112472 states have (on average 1.0634113379329966) internal successors, (119604), 112472 states have internal predecessors, (119604), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-10 23:51:45,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112473 states to 112473 states and 119604 transitions. [2024-10-10 23:51:45,723 INFO L78 Accepts]: Start accepts. Automaton has 112473 states and 119604 transitions. Word has length 1355 [2024-10-10 23:51:45,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-10 23:51:45,724 INFO L471 AbstractCegarLoop]: Abstraction has 112473 states and 119604 transitions. [2024-10-10 23:51:45,724 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 233.0) internal successors, (699), 3 states have internal predecessors, (699), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-10 23:51:45,724 INFO L276 IsEmpty]: Start isEmpty. Operand 112473 states and 119604 transitions. [2024-10-10 23:51:45,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1395 [2024-10-10 23:51:45,748 INFO L207 NwaCegarLoop]: Found error trace [2024-10-10 23:51:45,749 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-10 23:51:45,761 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-10-10 23:51:45,949 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,8 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-10 23:51:45,950 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-10 23:51:45,950 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-10 23:51:45,950 INFO L85 PathProgramCache]: Analyzing trace with hash 632654417, now seen corresponding path program 1 times [2024-10-10 23:51:45,950 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-10 23:51:45,950 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1394791626] [2024-10-10 23:51:45,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-10 23:51:45,951 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-10 23:51:46,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-10 23:51:46,826 INFO L134 CoverageAnalysis]: Checked inductivity of 1866 backedges. 1076 proven. 0 refuted. 0 times theorem prover too weak. 790 trivial. 0 not checked. [2024-10-10 23:51:46,827 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-10 23:51:46,827 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1394791626] [2024-10-10 23:51:46,827 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1394791626] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-10 23:51:46,827 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-10 23:51:46,827 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-10 23:51:46,827 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [738680055] [2024-10-10 23:51:46,827 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-10 23:51:46,828 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-10 23:51:46,828 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-10 23:51:46,829 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-10 23:51:46,829 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-10 23:51:46,829 INFO L87 Difference]: Start difference. First operand 112473 states and 119604 transitions. Second operand has 3 states, 3 states have (on average 296.0) internal successors, (888), 3 states have internal predecessors, (888), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)