./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pals_lcr.7.ufo.UNBOUNDED.pals+Problem12_label04.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 61a67961 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pals_lcr.7.ufo.UNBOUNDED.pals+Problem12_label04.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 6594a781eb15fb7bc8687ba7c7eec87d2c3a5aadf0390114ddcc686f9488f6df --- Real Ultimate output --- This is Ultimate 0.2.5-wip.fs.cvc5-61a6796-m [2024-10-14 05:04:59,673 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-14 05:04:59,740 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-14 05:04:59,746 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-14 05:04:59,748 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-14 05:04:59,789 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-14 05:04:59,789 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-14 05:04:59,790 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-14 05:04:59,791 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-14 05:04:59,792 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-14 05:04:59,792 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-14 05:04:59,792 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-14 05:04:59,793 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-14 05:04:59,794 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-14 05:04:59,794 INFO L153 SettingsManager]: * Use SBE=true [2024-10-14 05:04:59,794 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-14 05:04:59,795 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-14 05:04:59,795 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-14 05:04:59,796 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-14 05:04:59,796 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-14 05:04:59,796 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-14 05:04:59,797 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-14 05:04:59,797 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-14 05:04:59,798 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-14 05:04:59,798 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-14 05:04:59,798 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-14 05:04:59,799 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-14 05:04:59,799 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-14 05:04:59,799 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-14 05:04:59,800 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-14 05:04:59,800 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-14 05:04:59,800 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-14 05:04:59,801 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 05:04:59,801 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-14 05:04:59,801 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-14 05:04:59,802 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-14 05:04:59,802 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-14 05:04:59,802 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-14 05:04:59,803 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-14 05:04:59,803 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-14 05:04:59,803 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-14 05:04:59,804 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-14 05:04:59,804 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6594a781eb15fb7bc8687ba7c7eec87d2c3a5aadf0390114ddcc686f9488f6df [2024-10-14 05:05:00,067 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-14 05:05:00,089 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-14 05:05:00,092 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-14 05:05:00,093 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-14 05:05:00,094 INFO L274 PluginConnector]: CDTParser initialized [2024-10-14 05:05:00,095 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pals_lcr.7.ufo.UNBOUNDED.pals+Problem12_label04.c [2024-10-14 05:05:01,527 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-14 05:05:01,978 INFO L384 CDTParser]: Found 1 translation units. [2024-10-14 05:05:01,979 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pals_lcr.7.ufo.UNBOUNDED.pals+Problem12_label04.c [2024-10-14 05:05:02,016 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/90d96e533/9a52e6cc1abd485d922b3333be1730e1/FLAG8e438ac9c [2024-10-14 05:05:02,032 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/90d96e533/9a52e6cc1abd485d922b3333be1730e1 [2024-10-14 05:05:02,036 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-14 05:05:02,037 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-14 05:05:02,039 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-14 05:05:02,040 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-14 05:05:02,045 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-14 05:05:02,046 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 05:05:02" (1/1) ... [2024-10-14 05:05:02,047 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3862e5d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:05:02, skipping insertion in model container [2024-10-14 05:05:02,048 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 05:05:02" (1/1) ... [2024-10-14 05:05:02,169 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-14 05:05:02,577 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/combinations/pals_lcr.7.ufo.UNBOUNDED.pals+Problem12_label04.c[20454,20467] [2024-10-14 05:05:02,640 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/combinations/pals_lcr.7.ufo.UNBOUNDED.pals+Problem12_label04.c[27515,27528] [2024-10-14 05:05:03,347 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 05:05:03,359 INFO L200 MainTranslator]: Completed pre-run [2024-10-14 05:05:03,413 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/combinations/pals_lcr.7.ufo.UNBOUNDED.pals+Problem12_label04.c[20454,20467] [2024-10-14 05:05:03,430 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/combinations/pals_lcr.7.ufo.UNBOUNDED.pals+Problem12_label04.c[27515,27528] [2024-10-14 05:05:03,805 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 05:05:03,837 INFO L204 MainTranslator]: Completed translation [2024-10-14 05:05:03,838 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:05:03 WrapperNode [2024-10-14 05:05:03,838 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-14 05:05:03,839 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-14 05:05:03,839 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-14 05:05:03,839 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-14 05:05:03,846 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:05:03" (1/1) ... [2024-10-14 05:05:03,931 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:05:03" (1/1) ... [2024-10-14 05:05:04,187 INFO L138 Inliner]: procedures = 39, calls = 24, calls flagged for inlining = 19, calls inlined = 19, statements flattened = 5219 [2024-10-14 05:05:04,188 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-14 05:05:04,190 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-14 05:05:04,190 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-14 05:05:04,190 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-14 05:05:04,201 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:05:03" (1/1) ... [2024-10-14 05:05:04,201 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:05:03" (1/1) ... [2024-10-14 05:05:04,252 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:05:03" (1/1) ... [2024-10-14 05:05:04,507 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]. [2024-10-14 05:05:04,508 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:05:03" (1/1) ... [2024-10-14 05:05:04,508 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:05:03" (1/1) ... [2024-10-14 05:05:04,664 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:05:03" (1/1) ... [2024-10-14 05:05:04,686 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:05:03" (1/1) ... [2024-10-14 05:05:04,743 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:05:03" (1/1) ... [2024-10-14 05:05:04,790 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:05:03" (1/1) ... [2024-10-14 05:05:04,874 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-14 05:05:04,875 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-14 05:05:04,876 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-14 05:05:04,876 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-14 05:05:04,877 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:05:03" (1/1) ... [2024-10-14 05:05:04,881 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 05:05:04,893 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 05:05:04,927 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-14 05:05:04,930 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-14 05:05:04,977 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-14 05:05:04,977 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-14 05:05:04,977 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-14 05:05:04,977 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-14 05:05:05,079 INFO L238 CfgBuilder]: Building ICFG [2024-10-14 05:05:05,083 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-14 05:05:09,443 INFO L? ?]: Removed 754 outVars from TransFormulas that were not future-live. [2024-10-14 05:05:09,443 INFO L287 CfgBuilder]: Performing block encoding [2024-10-14 05:05:09,533 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-14 05:05:09,533 INFO L314 CfgBuilder]: Removed 2 assume(true) statements. [2024-10-14 05:05:09,535 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 05:05:09 BoogieIcfgContainer [2024-10-14 05:05:09,535 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-14 05:05:09,538 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-14 05:05:09,538 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-14 05:05:09,543 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-14 05:05:09,543 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 05:05:02" (1/3) ... [2024-10-14 05:05:09,544 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41ef193c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 05:05:09, skipping insertion in model container [2024-10-14 05:05:09,544 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:05:03" (2/3) ... [2024-10-14 05:05:09,545 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41ef193c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 05:05:09, skipping insertion in model container [2024-10-14 05:05:09,546 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 05:05:09" (3/3) ... [2024-10-14 05:05:09,547 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr.7.ufo.UNBOUNDED.pals+Problem12_label04.c [2024-10-14 05:05:09,576 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-14 05:05:09,577 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-10-14 05:05:09,734 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-14 05:05:09,743 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;@7fd784fb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-14 05:05:09,744 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-10-14 05:05:09,756 INFO L276 IsEmpty]: Start isEmpty. Operand has 867 states, 864 states have (on average 1.9710648148148149) internal successors, (1703), 866 states have internal predecessors, (1703), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 05:05:09,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-10-14 05:05:09,766 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 05:05:09,767 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] [2024-10-14 05:05:09,767 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 05:05:09,773 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 05:05:09,773 INFO L85 PathProgramCache]: Analyzing trace with hash 214023248, now seen corresponding path program 1 times [2024-10-14 05:05:09,782 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 05:05:09,784 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1938180721] [2024-10-14 05:05:09,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 05:05:09,784 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 05:05:09,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:05:10,094 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 05:05:10,095 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 05:05:10,095 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1938180721] [2024-10-14 05:05:10,096 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1938180721] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 05:05:10,096 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 05:05:10,096 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-14 05:05:10,098 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [365212359] [2024-10-14 05:05:10,099 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 05:05:10,103 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-14 05:05:10,104 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 05:05:10,124 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-14 05:05:10,125 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-14 05:05:10,129 INFO L87 Difference]: Start difference. First operand has 867 states, 864 states have (on average 1.9710648148148149) internal successors, (1703), 866 states have internal predecessors, (1703), 0 states have call successors, (0), 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 12.5) internal successors, (25), 2 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 05:05:10,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 05:05:10,238 INFO L93 Difference]: Finished difference Result 1679 states and 3299 transitions. [2024-10-14 05:05:10,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-14 05:05:10,244 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 0 states have call successors, (0), 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 25 [2024-10-14 05:05:10,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 05:05:10,263 INFO L225 Difference]: With dead ends: 1679 [2024-10-14 05:05:10,264 INFO L226 Difference]: Without dead ends: 863 [2024-10-14 05:05:10,274 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 [2024-10-14 05:05:10,280 INFO L432 NwaCegarLoop]: 1631 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1631 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 05:05:10,282 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1631 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 05:05:10,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 863 states. [2024-10-14 05:05:10,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 863 to 863. [2024-10-14 05:05:10,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 863 states, 861 states have (on average 1.8954703832752613) internal successors, (1632), 862 states have internal predecessors, (1632), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 05:05:10,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 863 states to 863 states and 1632 transitions. [2024-10-14 05:05:10,385 INFO L78 Accepts]: Start accepts. Automaton has 863 states and 1632 transitions. Word has length 25 [2024-10-14 05:05:10,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 05:05:10,386 INFO L471 AbstractCegarLoop]: Abstraction has 863 states and 1632 transitions. [2024-10-14 05:05:10,386 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 05:05:10,386 INFO L276 IsEmpty]: Start isEmpty. Operand 863 states and 1632 transitions. [2024-10-14 05:05:10,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-10-14 05:05:10,388 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 05:05:10,388 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] [2024-10-14 05:05:10,389 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-14 05:05:10,389 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 05:05:10,390 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 05:05:10,390 INFO L85 PathProgramCache]: Analyzing trace with hash 636725074, now seen corresponding path program 1 times [2024-10-14 05:05:10,390 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 05:05:10,390 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [588964439] [2024-10-14 05:05:10,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 05:05:10,391 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 05:05:10,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:05:10,614 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 05:05:10,615 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 05:05:10,615 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [588964439] [2024-10-14 05:05:10,615 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [588964439] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 05:05:10,616 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 05:05:10,616 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-14 05:05:10,616 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [925329262] [2024-10-14 05:05:10,616 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 05:05:10,617 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 05:05:10,618 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 05:05:10,618 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 05:05:10,619 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-14 05:05:10,619 INFO L87 Difference]: Start difference. First operand 863 states and 1632 transitions. Second operand has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 05:05:10,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 05:05:10,723 INFO L93 Difference]: Finished difference Result 921 states and 1724 transitions. [2024-10-14 05:05:10,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 05:05:10,724 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 0 states have call successors, (0), 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 25 [2024-10-14 05:05:10,724 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 05:05:10,729 INFO L225 Difference]: With dead ends: 921 [2024-10-14 05:05:10,729 INFO L226 Difference]: Without dead ends: 863 [2024-10-14 05:05:10,730 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-14 05:05:10,731 INFO L432 NwaCegarLoop]: 1629 mSDtfsCounter, 0 mSDsluCounter, 3204 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 4833 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 05:05:10,732 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 4833 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 05:05:10,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 863 states. [2024-10-14 05:05:10,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 863 to 863. [2024-10-14 05:05:10,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 863 states, 861 states have (on average 1.8373983739837398) internal successors, (1582), 862 states have internal predecessors, (1582), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 05:05:10,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 863 states to 863 states and 1582 transitions. [2024-10-14 05:05:10,756 INFO L78 Accepts]: Start accepts. Automaton has 863 states and 1582 transitions. Word has length 25 [2024-10-14 05:05:10,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 05:05:10,756 INFO L471 AbstractCegarLoop]: Abstraction has 863 states and 1582 transitions. [2024-10-14 05:05:10,756 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 05:05:10,757 INFO L276 IsEmpty]: Start isEmpty. Operand 863 states and 1582 transitions. [2024-10-14 05:05:10,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2024-10-14 05:05:10,758 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 05:05:10,759 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 05:05:10,759 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-14 05:05:10,759 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 05:05:10,760 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 05:05:10,760 INFO L85 PathProgramCache]: Analyzing trace with hash -1705244621, now seen corresponding path program 1 times [2024-10-14 05:05:10,760 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 05:05:10,761 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1177504991] [2024-10-14 05:05:10,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 05:05:10,761 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 05:05:10,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:05:10,974 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 05:05:10,974 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 05:05:10,975 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1177504991] [2024-10-14 05:05:10,975 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1177504991] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 05:05:10,975 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 05:05:10,975 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-14 05:05:10,976 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1732997385] [2024-10-14 05:05:10,976 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 05:05:10,977 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 05:05:10,977 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 05:05:10,979 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 05:05:10,980 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 05:05:10,980 INFO L87 Difference]: Start difference. First operand 863 states and 1582 transitions. Second operand has 3 states, 3 states have (on average 20.0) internal successors, (60), 2 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 05:05:14,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 05:05:14,226 INFO L93 Difference]: Finished difference Result 2367 states and 4455 transitions. [2024-10-14 05:05:14,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 05:05:14,226 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 2 states have internal predecessors, (60), 0 states have call successors, (0), 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 60 [2024-10-14 05:05:14,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 05:05:14,233 INFO L225 Difference]: With dead ends: 2367 [2024-10-14 05:05:14,234 INFO L226 Difference]: Without dead ends: 1614 [2024-10-14 05:05:14,238 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 [2024-10-14 05:05:14,241 INFO L432 NwaCegarLoop]: 608 mSDtfsCounter, 884 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 2264 mSolverCounterSat, 652 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 884 SdHoareTripleChecker+Valid, 615 SdHoareTripleChecker+Invalid, 2916 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 652 IncrementalHoareTripleChecker+Valid, 2264 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2024-10-14 05:05:14,242 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [884 Valid, 615 Invalid, 2916 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [652 Valid, 2264 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2024-10-14 05:05:14,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1614 states. [2024-10-14 05:05:14,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1614 to 1614. [2024-10-14 05:05:14,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1614 states, 1612 states have (on average 1.5887096774193548) internal successors, (2561), 1613 states have internal predecessors, (2561), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 05:05:14,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1614 states to 1614 states and 2561 transitions. [2024-10-14 05:05:14,278 INFO L78 Accepts]: Start accepts. Automaton has 1614 states and 2561 transitions. Word has length 60 [2024-10-14 05:05:14,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 05:05:14,278 INFO L471 AbstractCegarLoop]: Abstraction has 1614 states and 2561 transitions. [2024-10-14 05:05:14,278 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 2 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 05:05:14,279 INFO L276 IsEmpty]: Start isEmpty. Operand 1614 states and 2561 transitions. [2024-10-14 05:05:14,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-10-14 05:05:14,283 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 05:05:14,283 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 05:05:14,284 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-14 05:05:14,284 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 05:05:14,284 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 05:05:14,284 INFO L85 PathProgramCache]: Analyzing trace with hash 79829561, now seen corresponding path program 1 times [2024-10-14 05:05:14,284 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 05:05:14,285 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1983683559] [2024-10-14 05:05:14,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 05:05:14,285 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 05:05:14,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:05:14,603 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 05:05:14,604 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 05:05:14,605 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1983683559] [2024-10-14 05:05:14,605 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1983683559] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 05:05:14,605 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 05:05:14,605 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-10-14 05:05:14,605 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [97425053] [2024-10-14 05:05:14,605 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 05:05:14,606 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-14 05:05:14,606 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 05:05:14,607 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-14 05:05:14,607 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-10-14 05:05:14,607 INFO L87 Difference]: Start difference. First operand 1614 states and 2561 transitions. Second operand has 9 states, 9 states have (on average 8.222222222222221) internal successors, (74), 9 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 05:05:15,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 05:05:15,155 INFO L93 Difference]: Finished difference Result 2384 states and 3807 transitions. [2024-10-14 05:05:15,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-14 05:05:15,156 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.222222222222221) internal successors, (74), 9 states have internal predecessors, (74), 0 states have call successors, (0), 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 74 [2024-10-14 05:05:15,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 05:05:15,164 INFO L225 Difference]: With dead ends: 2384 [2024-10-14 05:05:15,165 INFO L226 Difference]: Without dead ends: 2329 [2024-10-14 05:05:15,166 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=124, Invalid=256, Unknown=0, NotChecked=0, Total=380 [2024-10-14 05:05:15,167 INFO L432 NwaCegarLoop]: 1573 mSDtfsCounter, 11585 mSDsluCounter, 2680 mSDsCounter, 0 mSdLazyCounter, 271 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11585 SdHoareTripleChecker+Valid, 4253 SdHoareTripleChecker+Invalid, 283 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 271 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-14 05:05:15,167 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [11585 Valid, 4253 Invalid, 283 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [12 Valid, 271 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-14 05:05:15,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2329 states. [2024-10-14 05:05:15,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2329 to 1667. [2024-10-14 05:05:15,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1667 states, 1665 states have (on average 1.5897897897897897) internal successors, (2647), 1666 states have internal predecessors, (2647), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 05:05:15,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1667 states to 1667 states and 2647 transitions. [2024-10-14 05:05:15,205 INFO L78 Accepts]: Start accepts. Automaton has 1667 states and 2647 transitions. Word has length 74 [2024-10-14 05:05:15,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 05:05:15,207 INFO L471 AbstractCegarLoop]: Abstraction has 1667 states and 2647 transitions. [2024-10-14 05:05:15,207 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.222222222222221) internal successors, (74), 9 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 05:05:15,207 INFO L276 IsEmpty]: Start isEmpty. Operand 1667 states and 2647 transitions. [2024-10-14 05:05:15,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2024-10-14 05:05:15,211 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 05:05:15,212 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 05:05:15,212 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-14 05:05:15,212 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 05:05:15,212 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 05:05:15,213 INFO L85 PathProgramCache]: Analyzing trace with hash -716806039, now seen corresponding path program 1 times [2024-10-14 05:05:15,213 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 05:05:15,213 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [855559949] [2024-10-14 05:05:15,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 05:05:15,213 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 05:05:15,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:05:15,337 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 05:05:15,337 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 05:05:15,337 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [855559949] [2024-10-14 05:05:15,338 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [855559949] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 05:05:15,338 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 05:05:15,338 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 05:05:15,338 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1097701718] [2024-10-14 05:05:15,338 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 05:05:15,339 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 05:05:15,339 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 05:05:15,339 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 05:05:15,340 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 05:05:15,340 INFO L87 Difference]: Start difference. First operand 1667 states and 2647 transitions. Second operand has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 05:05:15,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 05:05:15,390 INFO L93 Difference]: Finished difference Result 1872 states and 2978 transitions. [2024-10-14 05:05:15,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 05:05:15,391 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 76 [2024-10-14 05:05:15,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 05:05:15,397 INFO L225 Difference]: With dead ends: 1872 [2024-10-14 05:05:15,397 INFO L226 Difference]: Without dead ends: 1764 [2024-10-14 05:05:15,398 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 [2024-10-14 05:05:15,399 INFO L432 NwaCegarLoop]: 1575 mSDtfsCounter, 1498 mSDsluCounter, 81 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1498 SdHoareTripleChecker+Valid, 1656 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 05:05:15,399 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1498 Valid, 1656 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 05:05:15,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1764 states. [2024-10-14 05:05:15,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1764 to 1760. [2024-10-14 05:05:15,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1760 states, 1758 states have (on average 1.5898748577929465) internal successors, (2795), 1759 states have internal predecessors, (2795), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 05:05:15,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1760 states to 1760 states and 2795 transitions. [2024-10-14 05:05:15,434 INFO L78 Accepts]: Start accepts. Automaton has 1760 states and 2795 transitions. Word has length 76 [2024-10-14 05:05:15,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 05:05:15,434 INFO L471 AbstractCegarLoop]: Abstraction has 1760 states and 2795 transitions. [2024-10-14 05:05:15,434 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 05:05:15,434 INFO L276 IsEmpty]: Start isEmpty. Operand 1760 states and 2795 transitions. [2024-10-14 05:05:15,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2024-10-14 05:05:15,435 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 05:05:15,436 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 05:05:15,436 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-14 05:05:15,436 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 05:05:15,436 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 05:05:15,437 INFO L85 PathProgramCache]: Analyzing trace with hash -714661087, now seen corresponding path program 1 times [2024-10-14 05:05:15,437 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 05:05:15,437 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [974520290] [2024-10-14 05:05:15,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 05:05:15,437 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 05:05:15,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:05:15,867 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 05:05:15,868 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 05:05:15,868 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [974520290] [2024-10-14 05:05:15,869 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [974520290] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 05:05:15,869 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 05:05:15,869 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-10-14 05:05:15,869 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1934418095] [2024-10-14 05:05:15,869 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 05:05:15,870 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-14 05:05:15,870 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 05:05:15,870 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-14 05:05:15,870 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-10-14 05:05:15,871 INFO L87 Difference]: Start difference. First operand 1760 states and 2795 transitions. Second operand has 9 states, 9 states have (on average 8.444444444444445) internal successors, (76), 9 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 05:05:16,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 05:05:16,246 INFO L93 Difference]: Finished difference Result 1963 states and 3119 transitions. [2024-10-14 05:05:16,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-14 05:05:16,251 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.444444444444445) internal successors, (76), 9 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 76 [2024-10-14 05:05:16,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 05:05:16,258 INFO L225 Difference]: With dead ends: 1963 [2024-10-14 05:05:16,258 INFO L226 Difference]: Without dead ends: 1762 [2024-10-14 05:05:16,259 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=66, Invalid=116, Unknown=0, NotChecked=0, Total=182 [2024-10-14 05:05:16,260 INFO L432 NwaCegarLoop]: 1571 mSDtfsCounter, 7560 mSDsluCounter, 513 mSDsCounter, 0 mSdLazyCounter, 113 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7560 SdHoareTripleChecker+Valid, 2084 SdHoareTripleChecker+Invalid, 123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 113 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 05:05:16,260 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [7560 Valid, 2084 Invalid, 123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 113 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 05:05:16,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1762 states. [2024-10-14 05:05:16,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1762 to 1760. [2024-10-14 05:05:16,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1760 states, 1758 states have (on average 1.5887372013651877) internal successors, (2793), 1759 states have internal predecessors, (2793), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 05:05:16,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1760 states to 1760 states and 2793 transitions. [2024-10-14 05:05:16,298 INFO L78 Accepts]: Start accepts. Automaton has 1760 states and 2793 transitions. Word has length 76 [2024-10-14 05:05:16,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 05:05:16,299 INFO L471 AbstractCegarLoop]: Abstraction has 1760 states and 2793 transitions. [2024-10-14 05:05:16,299 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.444444444444445) internal successors, (76), 9 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 05:05:16,300 INFO L276 IsEmpty]: Start isEmpty. Operand 1760 states and 2793 transitions. [2024-10-14 05:05:16,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-10-14 05:05:16,300 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 05:05:16,301 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 05:05:16,301 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-14 05:05:16,301 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 05:05:16,302 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 05:05:16,302 INFO L85 PathProgramCache]: Analyzing trace with hash -808040563, now seen corresponding path program 1 times [2024-10-14 05:05:16,302 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 05:05:16,302 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1109517555] [2024-10-14 05:05:16,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 05:05:16,302 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 05:05:16,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:05:16,503 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 05:05:16,503 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 05:05:16,503 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1109517555] [2024-10-14 05:05:16,503 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1109517555] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 05:05:16,503 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 05:05:16,503 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-14 05:05:16,503 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2147389029] [2024-10-14 05:05:16,503 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 05:05:16,504 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 05:05:16,504 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 05:05:16,504 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 05:05:16,504 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-14 05:05:16,505 INFO L87 Difference]: Start difference. First operand 1760 states and 2793 transitions. Second operand has 4 states, 4 states have (on average 19.25) internal successors, (77), 4 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 05:05:16,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 05:05:16,547 INFO L93 Difference]: Finished difference Result 1766 states and 2800 transitions. [2024-10-14 05:05:16,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 05:05:16,548 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.25) internal successors, (77), 4 states have internal predecessors, (77), 0 states have call successors, (0), 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 77 [2024-10-14 05:05:16,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 05:05:16,554 INFO L225 Difference]: With dead ends: 1766 [2024-10-14 05:05:16,554 INFO L226 Difference]: Without dead ends: 1764 [2024-10-14 05:05:16,555 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-14 05:05:16,556 INFO L432 NwaCegarLoop]: 1578 mSDtfsCounter, 0 mSDsluCounter, 3148 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 4726 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 05:05:16,556 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 4726 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 05:05:16,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1764 states. [2024-10-14 05:05:16,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1764 to 1764. [2024-10-14 05:05:16,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1764 states, 1762 states have (on average 1.58683314415437) internal successors, (2796), 1763 states have internal predecessors, (2796), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 05:05:16,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1764 states to 1764 states and 2796 transitions. [2024-10-14 05:05:16,592 INFO L78 Accepts]: Start accepts. Automaton has 1764 states and 2796 transitions. Word has length 77 [2024-10-14 05:05:16,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 05:05:16,593 INFO L471 AbstractCegarLoop]: Abstraction has 1764 states and 2796 transitions. [2024-10-14 05:05:16,593 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.25) internal successors, (77), 4 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 05:05:16,593 INFO L276 IsEmpty]: Start isEmpty. Operand 1764 states and 2796 transitions. [2024-10-14 05:05:16,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-10-14 05:05:16,594 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 05:05:16,595 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 05:05:16,595 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-14 05:05:16,595 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 05:05:16,595 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 05:05:16,596 INFO L85 PathProgramCache]: Analyzing trace with hash 58143169, now seen corresponding path program 1 times [2024-10-14 05:05:16,596 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 05:05:16,596 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [731364314] [2024-10-14 05:05:16,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 05:05:16,596 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 05:05:16,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:05:16,657 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 05:05:16,658 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 05:05:16,658 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [731364314] [2024-10-14 05:05:16,658 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [731364314] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 05:05:16,658 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 05:05:16,658 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 05:05:16,658 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [283627158] [2024-10-14 05:05:16,659 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 05:05:16,659 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 05:05:16,659 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 05:05:16,660 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 05:05:16,660 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 05:05:16,660 INFO L87 Difference]: Start difference. First operand 1764 states and 2796 transitions. Second operand has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 05:05:16,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 05:05:16,700 INFO L93 Difference]: Finished difference Result 2158 states and 3416 transitions. [2024-10-14 05:05:16,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 05:05:16,701 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 78 [2024-10-14 05:05:16,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 05:05:16,709 INFO L225 Difference]: With dead ends: 2158 [2024-10-14 05:05:16,709 INFO L226 Difference]: Without dead ends: 1953 [2024-10-14 05:05:16,711 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 [2024-10-14 05:05:16,711 INFO L432 NwaCegarLoop]: 1644 mSDtfsCounter, 1515 mSDsluCounter, 93 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1515 SdHoareTripleChecker+Valid, 1737 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 05:05:16,712 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1515 Valid, 1737 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 05:05:16,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1953 states. [2024-10-14 05:05:16,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1953 to 1951. [2024-10-14 05:05:16,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1951 states, 1949 states have (on average 1.5838891739353516) internal successors, (3087), 1950 states have internal predecessors, (3087), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 05:05:16,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1951 states to 1951 states and 3087 transitions. [2024-10-14 05:05:16,757 INFO L78 Accepts]: Start accepts. Automaton has 1951 states and 3087 transitions. Word has length 78 [2024-10-14 05:05:16,757 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 05:05:16,758 INFO L471 AbstractCegarLoop]: Abstraction has 1951 states and 3087 transitions. [2024-10-14 05:05:16,758 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 05:05:16,758 INFO L276 IsEmpty]: Start isEmpty. Operand 1951 states and 3087 transitions. [2024-10-14 05:05:16,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-10-14 05:05:16,759 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 05:05:16,759 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 05:05:16,759 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-14 05:05:16,759 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 05:05:16,760 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 05:05:16,760 INFO L85 PathProgramCache]: Analyzing trace with hash -352243519, now seen corresponding path program 1 times [2024-10-14 05:05:16,760 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 05:05:16,760 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [735878140] [2024-10-14 05:05:16,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 05:05:16,761 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 05:05:16,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:05:16,828 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 05:05:16,829 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 05:05:16,829 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [735878140] [2024-10-14 05:05:16,829 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [735878140] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 05:05:16,829 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 05:05:16,829 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 05:05:16,829 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1162181906] [2024-10-14 05:05:16,830 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 05:05:16,830 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 05:05:16,831 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 05:05:16,831 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 05:05:16,831 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 05:05:16,831 INFO L87 Difference]: Start difference. First operand 1951 states and 3087 transitions. Second operand has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 05:05:16,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 05:05:16,922 INFO L93 Difference]: Finished difference Result 2703 states and 4261 transitions. [2024-10-14 05:05:16,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 05:05:16,923 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 78 [2024-10-14 05:05:16,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 05:05:16,931 INFO L225 Difference]: With dead ends: 2703 [2024-10-14 05:05:16,931 INFO L226 Difference]: Without dead ends: 2311 [2024-10-14 05:05:16,932 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 [2024-10-14 05:05:16,933 INFO L432 NwaCegarLoop]: 1642 mSDtfsCounter, 1513 mSDsluCounter, 97 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1513 SdHoareTripleChecker+Valid, 1739 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 05:05:16,933 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1513 Valid, 1739 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 05:05:16,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2311 states. [2024-10-14 05:05:16,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2311 to 2309. [2024-10-14 05:05:16,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2309 states, 2307 states have (on average 1.576506285218899) internal successors, (3637), 2308 states have internal predecessors, (3637), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 05:05:16,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2309 states to 2309 states and 3637 transitions. [2024-10-14 05:05:16,986 INFO L78 Accepts]: Start accepts. Automaton has 2309 states and 3637 transitions. Word has length 78 [2024-10-14 05:05:16,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 05:05:16,986 INFO L471 AbstractCegarLoop]: Abstraction has 2309 states and 3637 transitions. [2024-10-14 05:05:16,986 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 05:05:16,987 INFO L276 IsEmpty]: Start isEmpty. Operand 2309 states and 3637 transitions. [2024-10-14 05:05:16,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-10-14 05:05:16,987 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 05:05:16,988 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 05:05:16,988 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-14 05:05:16,988 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 05:05:16,988 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 05:05:16,989 INFO L85 PathProgramCache]: Analyzing trace with hash -580882751, now seen corresponding path program 1 times [2024-10-14 05:05:16,989 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 05:05:16,989 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1018503771] [2024-10-14 05:05:16,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 05:05:16,989 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 05:05:17,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:05:17,052 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 05:05:17,052 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 05:05:17,052 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1018503771] [2024-10-14 05:05:17,053 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1018503771] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 05:05:17,053 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 05:05:17,053 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 05:05:17,053 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1792953530] [2024-10-14 05:05:17,053 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 05:05:17,054 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 05:05:17,054 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 05:05:17,054 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 05:05:17,054 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 05:05:17,055 INFO L87 Difference]: Start difference. First operand 2309 states and 3637 transitions. Second operand has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 05:05:17,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 05:05:17,115 INFO L93 Difference]: Finished difference Result 3745 states and 5855 transitions. [2024-10-14 05:05:17,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 05:05:17,116 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 78 [2024-10-14 05:05:17,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 05:05:17,126 INFO L225 Difference]: With dead ends: 3745 [2024-10-14 05:05:17,126 INFO L226 Difference]: Without dead ends: 2995 [2024-10-14 05:05:17,128 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 [2024-10-14 05:05:17,129 INFO L432 NwaCegarLoop]: 1630 mSDtfsCounter, 1509 mSDsluCounter, 105 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1509 SdHoareTripleChecker+Valid, 1735 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 05:05:17,129 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1509 Valid, 1735 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 05:05:17,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2995 states. [2024-10-14 05:05:17,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2995 to 2993. [2024-10-14 05:05:17,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2993 states, 2991 states have (on average 1.5623537278502173) internal successors, (4673), 2992 states have internal predecessors, (4673), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 05:05:17,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2993 states to 2993 states and 4673 transitions. [2024-10-14 05:05:17,201 INFO L78 Accepts]: Start accepts. Automaton has 2993 states and 4673 transitions. Word has length 78 [2024-10-14 05:05:17,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 05:05:17,201 INFO L471 AbstractCegarLoop]: Abstraction has 2993 states and 4673 transitions. [2024-10-14 05:05:17,201 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 05:05:17,202 INFO L276 IsEmpty]: Start isEmpty. Operand 2993 states and 4673 transitions. [2024-10-14 05:05:17,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-10-14 05:05:17,202 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 05:05:17,203 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 05:05:17,203 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-14 05:05:17,203 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 05:05:17,203 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 05:05:17,204 INFO L85 PathProgramCache]: Analyzing trace with hash -1206538815, now seen corresponding path program 1 times [2024-10-14 05:05:17,204 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 05:05:17,204 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [744107905] [2024-10-14 05:05:17,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 05:05:17,204 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 05:05:17,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:05:17,267 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 05:05:17,267 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 05:05:17,267 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [744107905] [2024-10-14 05:05:17,267 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [744107905] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 05:05:17,267 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 05:05:17,267 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 05:05:17,268 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [109139465] [2024-10-14 05:05:17,268 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 05:05:17,268 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 05:05:17,268 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 05:05:17,269 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 05:05:17,269 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 05:05:17,269 INFO L87 Difference]: Start difference. First operand 2993 states and 4673 transitions. Second operand has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 05:05:17,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 05:05:17,347 INFO L93 Difference]: Finished difference Result 5733 states and 8851 transitions. [2024-10-14 05:05:17,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 05:05:17,348 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 78 [2024-10-14 05:05:17,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 05:05:17,362 INFO L225 Difference]: With dead ends: 5733 [2024-10-14 05:05:17,363 INFO L226 Difference]: Without dead ends: 4299 [2024-10-14 05:05:17,367 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 [2024-10-14 05:05:17,367 INFO L432 NwaCegarLoop]: 1628 mSDtfsCounter, 1507 mSDsluCounter, 109 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1507 SdHoareTripleChecker+Valid, 1737 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 05:05:17,368 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1507 Valid, 1737 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 05:05:17,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4299 states. [2024-10-14 05:05:17,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4299 to 4297. [2024-10-14 05:05:17,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4297 states, 4295 states have (on average 1.5406286379511058) internal successors, (6617), 4296 states have internal predecessors, (6617), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 05:05:17,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4297 states to 4297 states and 6617 transitions. [2024-10-14 05:05:17,482 INFO L78 Accepts]: Start accepts. Automaton has 4297 states and 6617 transitions. Word has length 78 [2024-10-14 05:05:17,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 05:05:17,483 INFO L471 AbstractCegarLoop]: Abstraction has 4297 states and 6617 transitions. [2024-10-14 05:05:17,483 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 05:05:17,483 INFO L276 IsEmpty]: Start isEmpty. Operand 4297 states and 6617 transitions. [2024-10-14 05:05:17,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-10-14 05:05:17,484 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 05:05:17,484 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 05:05:17,484 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-14 05:05:17,485 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 05:05:17,485 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 05:05:17,485 INFO L85 PathProgramCache]: Analyzing trace with hash -317805375, now seen corresponding path program 1 times [2024-10-14 05:05:17,485 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 05:05:17,485 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [616862333] [2024-10-14 05:05:17,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 05:05:17,486 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 05:05:17,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:05:17,550 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 05:05:17,551 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 05:05:17,551 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [616862333] [2024-10-14 05:05:17,551 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [616862333] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 05:05:17,551 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 05:05:17,551 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 05:05:17,551 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [619322856] [2024-10-14 05:05:17,551 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 05:05:17,552 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 05:05:17,552 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 05:05:17,552 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 05:05:17,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 05:05:17,552 INFO L87 Difference]: Start difference. First operand 4297 states and 6617 transitions. Second operand has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 05:05:17,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 05:05:17,675 INFO L93 Difference]: Finished difference Result 9517 states and 14459 transitions. [2024-10-14 05:05:17,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 05:05:17,676 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 78 [2024-10-14 05:05:17,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 05:05:17,698 INFO L225 Difference]: With dead ends: 9517 [2024-10-14 05:05:17,698 INFO L226 Difference]: Without dead ends: 6779 [2024-10-14 05:05:17,704 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 [2024-10-14 05:05:17,705 INFO L432 NwaCegarLoop]: 1626 mSDtfsCounter, 1505 mSDsluCounter, 113 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1505 SdHoareTripleChecker+Valid, 1739 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 05:05:17,705 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1505 Valid, 1739 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 05:05:17,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6779 states. [2024-10-14 05:05:17,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6779 to 6777. [2024-10-14 05:05:17,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6777 states, 6775 states have (on average 1.5127675276752768) internal successors, (10249), 6776 states have internal predecessors, (10249), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 05:05:17,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6777 states to 6777 states and 10249 transitions. [2024-10-14 05:05:17,901 INFO L78 Accepts]: Start accepts. Automaton has 6777 states and 10249 transitions. Word has length 78 [2024-10-14 05:05:17,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 05:05:17,902 INFO L471 AbstractCegarLoop]: Abstraction has 6777 states and 10249 transitions. [2024-10-14 05:05:17,902 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 05:05:17,902 INFO L276 IsEmpty]: Start isEmpty. Operand 6777 states and 10249 transitions. [2024-10-14 05:05:17,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-10-14 05:05:17,903 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 05:05:17,903 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 05:05:17,904 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-14 05:05:17,904 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 05:05:17,904 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 05:05:17,904 INFO L85 PathProgramCache]: Analyzing trace with hash -620826687, now seen corresponding path program 1 times [2024-10-14 05:05:17,904 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 05:05:17,905 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1037220074] [2024-10-14 05:05:17,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 05:05:17,905 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 05:05:17,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:05:17,978 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 05:05:17,979 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 05:05:17,979 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1037220074] [2024-10-14 05:05:17,979 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1037220074] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 05:05:17,979 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 05:05:17,979 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 05:05:17,979 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1482927305] [2024-10-14 05:05:17,979 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 05:05:17,980 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 05:05:17,980 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 05:05:17,980 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 05:05:17,980 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 05:05:17,980 INFO L87 Difference]: Start difference. First operand 6777 states and 10249 transitions. Second operand has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 05:05:18,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 05:05:18,339 INFO L93 Difference]: Finished difference Result 16701 states and 24907 transitions. [2024-10-14 05:05:18,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 05:05:18,340 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 78 [2024-10-14 05:05:18,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 05:05:18,368 INFO L225 Difference]: With dead ends: 16701 [2024-10-14 05:05:18,368 INFO L226 Difference]: Without dead ends: 11483 [2024-10-14 05:05:18,378 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 [2024-10-14 05:05:18,379 INFO L432 NwaCegarLoop]: 1640 mSDtfsCounter, 1511 mSDsluCounter, 101 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1511 SdHoareTripleChecker+Valid, 1741 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 05:05:18,379 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1511 Valid, 1741 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 05:05:18,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11483 states. [2024-10-14 05:05:18,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11483 to 11481. [2024-10-14 05:05:18,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11481 states, 11479 states have (on average 1.481052356477045) internal successors, (17001), 11480 states have internal predecessors, (17001), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 05:05:18,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11481 states to 11481 states and 17001 transitions. [2024-10-14 05:05:18,802 INFO L78 Accepts]: Start accepts. Automaton has 11481 states and 17001 transitions. Word has length 78 [2024-10-14 05:05:18,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 05:05:18,802 INFO L471 AbstractCegarLoop]: Abstraction has 11481 states and 17001 transitions. [2024-10-14 05:05:18,803 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 05:05:18,803 INFO L276 IsEmpty]: Start isEmpty. Operand 11481 states and 17001 transitions. [2024-10-14 05:05:18,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-10-14 05:05:18,806 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 05:05:18,807 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 05:05:18,807 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-14 05:05:18,807 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 05:05:18,807 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 05:05:18,808 INFO L85 PathProgramCache]: Analyzing trace with hash -1245961434, now seen corresponding path program 1 times [2024-10-14 05:05:18,808 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 05:05:18,808 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [552641248] [2024-10-14 05:05:18,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 05:05:18,808 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 05:05:18,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:05:18,876 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 05:05:18,876 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 05:05:18,876 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [552641248] [2024-10-14 05:05:18,877 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [552641248] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 05:05:18,877 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 05:05:18,877 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 05:05:18,877 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [699628099] [2024-10-14 05:05:18,877 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 05:05:18,878 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 05:05:18,878 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 05:05:18,878 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 05:05:18,878 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 05:05:18,879 INFO L87 Difference]: Start difference. First operand 11481 states and 17001 transitions. Second operand has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 05:05:19,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 05:05:19,188 INFO L93 Difference]: Finished difference Result 21728 states and 32239 transitions. [2024-10-14 05:05:19,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 05:05:19,189 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 0 states have call successors, (0), 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 80 [2024-10-14 05:05:19,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 05:05:19,222 INFO L225 Difference]: With dead ends: 21728 [2024-10-14 05:05:19,222 INFO L226 Difference]: Without dead ends: 16221 [2024-10-14 05:05:19,235 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 [2024-10-14 05:05:19,236 INFO L432 NwaCegarLoop]: 1649 mSDtfsCounter, 1514 mSDsluCounter, 89 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1514 SdHoareTripleChecker+Valid, 1738 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 05:05:19,236 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1514 Valid, 1738 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 05:05:19,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16221 states. [2024-10-14 05:05:19,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16221 to 16219. [2024-10-14 05:05:19,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16219 states, 16217 states have (on average 1.4707405808719245) internal successors, (23851), 16218 states have internal predecessors, (23851), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 05:05:19,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16219 states to 16219 states and 23851 transitions. [2024-10-14 05:05:19,803 INFO L78 Accepts]: Start accepts. Automaton has 16219 states and 23851 transitions. Word has length 80 [2024-10-14 05:05:19,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 05:05:19,803 INFO L471 AbstractCegarLoop]: Abstraction has 16219 states and 23851 transitions. [2024-10-14 05:05:19,803 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 05:05:19,803 INFO L276 IsEmpty]: Start isEmpty. Operand 16219 states and 23851 transitions. [2024-10-14 05:05:19,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2024-10-14 05:05:19,807 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 05:05:19,808 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 05:05:19,808 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-10-14 05:05:19,808 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 05:05:19,808 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 05:05:19,808 INFO L85 PathProgramCache]: Analyzing trace with hash 622574157, now seen corresponding path program 1 times [2024-10-14 05:05:19,808 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 05:05:19,809 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1388999426] [2024-10-14 05:05:19,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 05:05:19,809 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 05:05:19,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:05:20,047 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-14 05:05:20,048 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 05:05:20,048 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1388999426] [2024-10-14 05:05:20,048 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1388999426] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 05:05:20,048 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 05:05:20,048 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-10-14 05:05:20,048 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [268084110] [2024-10-14 05:05:20,049 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 05:05:20,049 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-14 05:05:20,049 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 05:05:20,049 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-14 05:05:20,050 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-10-14 05:05:20,050 INFO L87 Difference]: Start difference. First operand 16219 states and 23851 transitions. Second operand has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 9 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 05:05:21,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 05:05:21,807 INFO L93 Difference]: Finished difference Result 121771 states and 177651 transitions. [2024-10-14 05:05:21,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-14 05:05:21,808 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 9 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 100 [2024-10-14 05:05:21,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 05:05:22,069 INFO L225 Difference]: With dead ends: 121771 [2024-10-14 05:05:22,069 INFO L226 Difference]: Without dead ends: 107113 [2024-10-14 05:05:22,117 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2024-10-14 05:05:22,118 INFO L432 NwaCegarLoop]: 1667 mSDtfsCounter, 9884 mSDsluCounter, 2706 mSDsCounter, 0 mSdLazyCounter, 187 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9884 SdHoareTripleChecker+Valid, 4373 SdHoareTripleChecker+Invalid, 193 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 187 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 05:05:22,119 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [9884 Valid, 4373 Invalid, 193 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 187 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 05:05:22,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107113 states. [2024-10-14 05:05:23,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107113 to 30875. [2024-10-14 05:05:23,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30875 states, 30873 states have (on average 1.4587179736339195) internal successors, (45035), 30874 states have internal predecessors, (45035), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 05:05:24,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30875 states to 30875 states and 45035 transitions. [2024-10-14 05:05:24,054 INFO L78 Accepts]: Start accepts. Automaton has 30875 states and 45035 transitions. Word has length 100 [2024-10-14 05:05:24,054 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 05:05:24,055 INFO L471 AbstractCegarLoop]: Abstraction has 30875 states and 45035 transitions. [2024-10-14 05:05:24,055 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 9 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 05:05:24,055 INFO L276 IsEmpty]: Start isEmpty. Operand 30875 states and 45035 transitions. [2024-10-14 05:05:24,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2024-10-14 05:05:24,059 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 05:05:24,060 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 05:05:24,060 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-10-14 05:05:24,060 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 05:05:24,060 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 05:05:24,061 INFO L85 PathProgramCache]: Analyzing trace with hash 212187469, now seen corresponding path program 1 times [2024-10-14 05:05:24,061 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 05:05:24,062 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1031509506] [2024-10-14 05:05:24,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 05:05:24,062 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 05:05:24,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:05:24,304 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-10-14 05:05:24,304 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 05:05:24,305 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1031509506] [2024-10-14 05:05:24,305 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1031509506] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 05:05:24,305 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 05:05:24,305 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-10-14 05:05:24,307 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1109364062] [2024-10-14 05:05:24,308 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 05:05:24,308 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-14 05:05:24,308 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 05:05:24,309 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-14 05:05:24,309 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-10-14 05:05:24,309 INFO L87 Difference]: Start difference. First operand 30875 states and 45035 transitions. Second operand has 9 states, 9 states have (on average 10.555555555555555) internal successors, (95), 9 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 05:05:26,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 05:05:26,984 INFO L93 Difference]: Finished difference Result 136427 states and 198835 transitions. [2024-10-14 05:05:26,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-14 05:05:26,984 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.555555555555555) internal successors, (95), 9 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 100 [2024-10-14 05:05:26,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 05:05:27,206 INFO L225 Difference]: With dead ends: 136427 [2024-10-14 05:05:27,207 INFO L226 Difference]: Without dead ends: 121769 [2024-10-14 05:05:27,258 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2024-10-14 05:05:27,259 INFO L432 NwaCegarLoop]: 1664 mSDtfsCounter, 9924 mSDsluCounter, 2610 mSDsCounter, 0 mSdLazyCounter, 216 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9924 SdHoareTripleChecker+Valid, 4274 SdHoareTripleChecker+Invalid, 222 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 216 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 05:05:27,260 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [9924 Valid, 4274 Invalid, 222 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 216 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 05:05:27,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121769 states. [2024-10-14 05:05:29,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121769 to 52891. [2024-10-14 05:05:29,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52891 states, 52889 states have (on average 1.449280568738301) internal successors, (76651), 52890 states have internal predecessors, (76651), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 05:05:29,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52891 states to 52891 states and 76651 transitions. [2024-10-14 05:05:29,327 INFO L78 Accepts]: Start accepts. Automaton has 52891 states and 76651 transitions. Word has length 100 [2024-10-14 05:05:29,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 05:05:29,328 INFO L471 AbstractCegarLoop]: Abstraction has 52891 states and 76651 transitions. [2024-10-14 05:05:29,328 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.555555555555555) internal successors, (95), 9 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 05:05:29,328 INFO L276 IsEmpty]: Start isEmpty. Operand 52891 states and 76651 transitions. [2024-10-14 05:05:29,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2024-10-14 05:05:29,338 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 05:05:29,339 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 05:05:29,339 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-10-14 05:05:29,339 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 05:05:29,339 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 05:05:29,339 INFO L85 PathProgramCache]: Analyzing trace with hash -16451763, now seen corresponding path program 1 times [2024-10-14 05:05:29,340 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 05:05:29,340 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1655202936] [2024-10-14 05:05:29,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 05:05:29,340 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 05:05:29,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:05:29,808 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-10-14 05:05:29,809 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 05:05:29,809 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1655202936] [2024-10-14 05:05:29,809 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1655202936] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 05:05:29,809 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 05:05:29,809 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-10-14 05:05:29,809 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [435985753] [2024-10-14 05:05:29,810 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 05:05:29,810 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-14 05:05:29,810 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 05:05:29,811 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-14 05:05:29,811 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-10-14 05:05:29,812 INFO L87 Difference]: Start difference. First operand 52891 states and 76651 transitions. Second operand has 9 states, 9 states have (on average 10.11111111111111) internal successors, (91), 9 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 05:05:32,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 05:05:32,767 INFO L93 Difference]: Finished difference Result 151083 states and 220019 transitions. [2024-10-14 05:05:32,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-14 05:05:32,768 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.11111111111111) internal successors, (91), 9 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 100 [2024-10-14 05:05:32,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 05:05:33,105 INFO L225 Difference]: With dead ends: 151083 [2024-10-14 05:05:33,105 INFO L226 Difference]: Without dead ends: 136425 [2024-10-14 05:05:33,143 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2024-10-14 05:05:33,144 INFO L432 NwaCegarLoop]: 1661 mSDtfsCounter, 9999 mSDsluCounter, 2589 mSDsCounter, 0 mSdLazyCounter, 186 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9999 SdHoareTripleChecker+Valid, 4250 SdHoareTripleChecker+Invalid, 192 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 186 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 05:05:33,145 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [9999 Valid, 4250 Invalid, 192 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 186 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 05:05:33,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136425 states. [2024-10-14 05:05:35,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136425 to 67547. [2024-10-14 05:05:35,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67547 states, 67545 states have (on average 1.4484417795543711) internal successors, (97835), 67546 states have internal predecessors, (97835), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 05:05:35,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67547 states to 67547 states and 97835 transitions. [2024-10-14 05:05:35,675 INFO L78 Accepts]: Start accepts. Automaton has 67547 states and 97835 transitions. Word has length 100 [2024-10-14 05:05:35,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 05:05:35,675 INFO L471 AbstractCegarLoop]: Abstraction has 67547 states and 97835 transitions. [2024-10-14 05:05:35,676 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.11111111111111) internal successors, (91), 9 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 05:05:35,676 INFO L276 IsEmpty]: Start isEmpty. Operand 67547 states and 97835 transitions. [2024-10-14 05:05:35,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2024-10-14 05:05:35,681 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 05:05:35,682 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 05:05:35,682 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-10-14 05:05:35,682 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 05:05:35,682 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 05:05:35,682 INFO L85 PathProgramCache]: Analyzing trace with hash -642107827, now seen corresponding path program 1 times [2024-10-14 05:05:35,682 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 05:05:35,683 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1822519304] [2024-10-14 05:05:35,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 05:05:35,683 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 05:05:35,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:05:35,900 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-14 05:05:35,901 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 05:05:35,901 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1822519304] [2024-10-14 05:05:35,901 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1822519304] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 05:05:35,901 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 05:05:35,902 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-10-14 05:05:35,902 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1555171628] [2024-10-14 05:05:35,902 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 05:05:35,902 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-14 05:05:35,902 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 05:05:35,903 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-14 05:05:35,903 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-10-14 05:05:35,903 INFO L87 Difference]: Start difference. First operand 67547 states and 97835 transitions. Second operand has 9 states, 9 states have (on average 9.88888888888889) internal successors, (89), 9 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 05:05:39,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 05:05:39,700 INFO L93 Difference]: Finished difference Result 165739 states and 241203 transitions. [2024-10-14 05:05:39,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-14 05:05:39,701 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.88888888888889) internal successors, (89), 9 states have internal predecessors, (89), 0 states have call successors, (0), 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 100 [2024-10-14 05:05:39,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 05:05:40,045 INFO L225 Difference]: With dead ends: 165739 [2024-10-14 05:05:40,045 INFO L226 Difference]: Without dead ends: 151081 [2024-10-14 05:05:40,093 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2024-10-14 05:05:40,094 INFO L432 NwaCegarLoop]: 1658 mSDtfsCounter, 10065 mSDsluCounter, 2556 mSDsCounter, 0 mSdLazyCounter, 187 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10065 SdHoareTripleChecker+Valid, 4214 SdHoareTripleChecker+Invalid, 193 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 187 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 05:05:40,094 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [10065 Valid, 4214 Invalid, 193 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 187 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 05:05:40,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151081 states. [2024-10-14 05:05:43,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151081 to 82203. [2024-10-14 05:05:43,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82203 states, 82201 states have (on average 1.4479020936484959) internal successors, (119019), 82202 states have internal predecessors, (119019), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 05:05:43,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82203 states to 82203 states and 119019 transitions. [2024-10-14 05:05:43,325 INFO L78 Accepts]: Start accepts. Automaton has 82203 states and 119019 transitions. Word has length 100 [2024-10-14 05:05:43,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 05:05:43,326 INFO L471 AbstractCegarLoop]: Abstraction has 82203 states and 119019 transitions. [2024-10-14 05:05:43,326 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.88888888888889) internal successors, (89), 9 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 05:05:43,326 INFO L276 IsEmpty]: Start isEmpty. Operand 82203 states and 119019 transitions. [2024-10-14 05:05:43,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2024-10-14 05:05:43,333 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 05:05:43,333 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 05:05:43,333 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-10-14 05:05:43,333 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 05:05:43,334 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 05:05:43,334 INFO L85 PathProgramCache]: Analyzing trace with hash 246625613, now seen corresponding path program 1 times [2024-10-14 05:05:43,334 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 05:05:43,334 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1109616876] [2024-10-14 05:05:43,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 05:05:43,334 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 05:05:43,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:05:43,826 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-10-14 05:05:43,827 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 05:05:43,827 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1109616876] [2024-10-14 05:05:43,827 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1109616876] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 05:05:43,827 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 05:05:43,827 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-10-14 05:05:43,828 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [826187008] [2024-10-14 05:05:43,828 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 05:05:43,828 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-14 05:05:43,828 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 05:05:43,829 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-14 05:05:43,829 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-10-14 05:05:43,829 INFO L87 Difference]: Start difference. First operand 82203 states and 119019 transitions. Second operand has 9 states, 9 states have (on average 9.666666666666666) internal successors, (87), 9 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 05:05:47,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 05:05:47,565 INFO L93 Difference]: Finished difference Result 180395 states and 262387 transitions. [2024-10-14 05:05:47,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-14 05:05:47,565 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.666666666666666) internal successors, (87), 9 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 100 [2024-10-14 05:05:47,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 05:05:47,831 INFO L225 Difference]: With dead ends: 180395 [2024-10-14 05:05:47,832 INFO L226 Difference]: Without dead ends: 165737 [2024-10-14 05:05:47,867 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2024-10-14 05:05:47,868 INFO L432 NwaCegarLoop]: 1661 mSDtfsCounter, 9915 mSDsluCounter, 2660 mSDsCounter, 0 mSdLazyCounter, 230 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9915 SdHoareTripleChecker+Valid, 4321 SdHoareTripleChecker+Invalid, 236 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 230 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-14 05:05:47,868 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [9915 Valid, 4321 Invalid, 236 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 230 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-14 05:05:47,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165737 states. [2024-10-14 05:05:51,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165737 to 96859. [2024-10-14 05:05:51,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96859 states, 96857 states have (on average 1.4475257338137666) internal successors, (140203), 96858 states have internal predecessors, (140203), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 05:05:51,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96859 states to 96859 states and 140203 transitions. [2024-10-14 05:05:51,551 INFO L78 Accepts]: Start accepts. Automaton has 96859 states and 140203 transitions. Word has length 100 [2024-10-14 05:05:51,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 05:05:51,551 INFO L471 AbstractCegarLoop]: Abstraction has 96859 states and 140203 transitions. [2024-10-14 05:05:51,551 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.666666666666666) internal successors, (87), 9 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 05:05:51,552 INFO L276 IsEmpty]: Start isEmpty. Operand 96859 states and 140203 transitions. [2024-10-14 05:05:51,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2024-10-14 05:05:51,558 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 05:05:51,558 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 05:05:51,558 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-10-14 05:05:51,558 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 05:05:51,559 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 05:05:51,559 INFO L85 PathProgramCache]: Analyzing trace with hash -56395699, now seen corresponding path program 1 times [2024-10-14 05:05:51,559 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 05:05:51,559 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1914252086] [2024-10-14 05:05:51,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 05:05:51,559 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 05:05:51,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:05:51,753 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-10-14 05:05:51,753 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 05:05:51,753 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1914252086] [2024-10-14 05:05:51,753 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1914252086] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 05:05:51,754 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 05:05:51,754 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-10-14 05:05:51,754 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1710757167] [2024-10-14 05:05:51,754 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 05:05:51,754 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-14 05:05:51,755 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 05:05:51,755 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-14 05:05:51,755 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-10-14 05:05:51,755 INFO L87 Difference]: Start difference. First operand 96859 states and 140203 transitions. Second operand has 9 states, 9 states have (on average 10.333333333333334) internal successors, (93), 9 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)