./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.8.ufo.BOUNDED-16.pals+Problem12_label04.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4a390ef5 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pals_lcr.8.ufo.BOUNDED-16.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 8d30821bc76d9d6de114a752bdb0189de63ec53e34d38d02148142a86b1fc84b --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4a390ef-m [2024-10-24 02:57:06,879 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-24 02:57:06,919 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-24 02:57:06,923 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-24 02:57:06,923 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-24 02:57:06,948 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-24 02:57:06,948 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-24 02:57:06,949 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-24 02:57:06,949 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-24 02:57:06,949 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-24 02:57:06,950 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-24 02:57:06,950 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-24 02:57:06,951 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-24 02:57:06,951 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-24 02:57:06,951 INFO L153 SettingsManager]: * Use SBE=true [2024-10-24 02:57:06,951 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-24 02:57:06,952 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-24 02:57:06,952 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-24 02:57:06,952 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-24 02:57:06,953 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-24 02:57:06,953 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-24 02:57:06,956 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-24 02:57:06,957 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-24 02:57:06,957 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-24 02:57:06,957 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-24 02:57:06,957 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-24 02:57:06,958 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-24 02:57:06,958 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-24 02:57:06,958 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-24 02:57:06,958 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-24 02:57:06,958 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-24 02:57:06,959 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-24 02:57:06,959 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 02:57:06,959 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-24 02:57:06,959 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-24 02:57:06,960 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-24 02:57:06,960 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-24 02:57:06,960 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-24 02:57:06,960 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-24 02:57:06,961 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-24 02:57:06,961 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-24 02:57:06,961 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-24 02:57:06,962 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8d30821bc76d9d6de114a752bdb0189de63ec53e34d38d02148142a86b1fc84b [2024-10-24 02:57:07,244 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-24 02:57:07,271 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-24 02:57:07,274 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-24 02:57:07,275 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-24 02:57:07,277 INFO L274 PluginConnector]: CDTParser initialized [2024-10-24 02:57:07,278 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pals_lcr.8.ufo.BOUNDED-16.pals+Problem12_label04.c [2024-10-24 02:57:08,703 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-24 02:57:09,171 INFO L384 CDTParser]: Found 1 translation units. [2024-10-24 02:57:09,172 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pals_lcr.8.ufo.BOUNDED-16.pals+Problem12_label04.c [2024-10-24 02:57:09,209 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9ac301837/5dbddebc8580427c9ca67a4f645e8e66/FLAG6d29144f0 [2024-10-24 02:57:09,304 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9ac301837/5dbddebc8580427c9ca67a4f645e8e66 [2024-10-24 02:57:09,312 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-24 02:57:09,314 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-24 02:57:09,315 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-24 02:57:09,315 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-24 02:57:09,329 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-24 02:57:09,329 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 02:57:09" (1/1) ... [2024-10-24 02:57:09,330 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5fa0d2c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:57:09, skipping insertion in model container [2024-10-24 02:57:09,330 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 02:57:09" (1/1) ... [2024-10-24 02:57:09,462 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-24 02:57:09,890 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.8.ufo.BOUNDED-16.pals+Problem12_label04.c[26860,26873] [2024-10-24 02:57:09,930 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.8.ufo.BOUNDED-16.pals+Problem12_label04.c[33921,33934] [2024-10-24 02:57:10,482 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 02:57:10,494 INFO L200 MainTranslator]: Completed pre-run [2024-10-24 02:57:10,528 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.8.ufo.BOUNDED-16.pals+Problem12_label04.c[26860,26873] [2024-10-24 02:57:10,544 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.8.ufo.BOUNDED-16.pals+Problem12_label04.c[33921,33934] [2024-10-24 02:57:10,947 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 02:57:10,973 INFO L204 MainTranslator]: Completed translation [2024-10-24 02:57:10,974 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:57:10 WrapperNode [2024-10-24 02:57:10,974 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-24 02:57:10,975 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-24 02:57:10,975 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-24 02:57:10,975 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-24 02:57:10,980 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:57:10" (1/1) ... [2024-10-24 02:57:11,030 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:57:10" (1/1) ... [2024-10-24 02:57:11,400 INFO L138 Inliner]: procedures = 39, calls = 25, calls flagged for inlining = 20, calls inlined = 20, statements flattened = 5293 [2024-10-24 02:57:11,401 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-24 02:57:11,402 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-24 02:57:11,402 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-24 02:57:11,402 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-24 02:57:11,412 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:57:10" (1/1) ... [2024-10-24 02:57:11,413 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:57:10" (1/1) ... [2024-10-24 02:57:11,461 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:57:10" (1/1) ... [2024-10-24 02:57:11,643 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]. [2024-10-24 02:57:11,643 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:57:10" (1/1) ... [2024-10-24 02:57:11,643 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:57:10" (1/1) ... [2024-10-24 02:57:11,747 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:57:10" (1/1) ... [2024-10-24 02:57:11,771 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:57:10" (1/1) ... [2024-10-24 02:57:11,795 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:57:10" (1/1) ... [2024-10-24 02:57:11,809 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:57:10" (1/1) ... [2024-10-24 02:57:11,867 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-24 02:57:11,868 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-24 02:57:11,869 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-24 02:57:11,869 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-24 02:57:11,870 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:57:10" (1/1) ... [2024-10-24 02:57:11,875 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 02:57:11,949 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 02:57:11,969 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) [2024-10-24 02:57:11,976 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 [2024-10-24 02:57:12,092 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-24 02:57:12,092 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-24 02:57:12,092 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-24 02:57:12,092 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-24 02:57:12,342 INFO L238 CfgBuilder]: Building ICFG [2024-10-24 02:57:12,344 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-24 02:57:16,079 INFO L? ?]: Removed 759 outVars from TransFormulas that were not future-live. [2024-10-24 02:57:16,079 INFO L287 CfgBuilder]: Performing block encoding [2024-10-24 02:57:16,156 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-24 02:57:16,157 INFO L314 CfgBuilder]: Removed 2 assume(true) statements. [2024-10-24 02:57:16,157 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 02:57:16 BoogieIcfgContainer [2024-10-24 02:57:16,157 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-24 02:57:16,159 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-24 02:57:16,159 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-24 02:57:16,162 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-24 02:57:16,163 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 02:57:09" (1/3) ... [2024-10-24 02:57:16,163 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13985511 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 02:57:16, skipping insertion in model container [2024-10-24 02:57:16,164 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:57:10" (2/3) ... [2024-10-24 02:57:16,164 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13985511 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 02:57:16, skipping insertion in model container [2024-10-24 02:57:16,165 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 02:57:16" (3/3) ... [2024-10-24 02:57:16,166 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr.8.ufo.BOUNDED-16.pals+Problem12_label04.c [2024-10-24 02:57:16,180 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-24 02:57:16,180 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-10-24 02:57:16,307 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-24 02:57:16,322 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;@1541bffb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-24 02:57:16,326 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-10-24 02:57:16,342 INFO L276 IsEmpty]: Start isEmpty. Operand has 882 states, 879 states have (on average 1.9704209328782707) internal successors, (1732), 881 states have internal predecessors, (1732), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 02:57:16,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2024-10-24 02:57:16,356 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 02:57:16,356 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] [2024-10-24 02:57:16,357 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 02:57:16,365 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 02:57:16,365 INFO L85 PathProgramCache]: Analyzing trace with hash -98995374, now seen corresponding path program 1 times [2024-10-24 02:57:16,371 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 02:57:16,371 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [786945697] [2024-10-24 02:57:16,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 02:57:16,372 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 02:57:16,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:57:16,652 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 02:57:16,652 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 02:57:16,652 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [786945697] [2024-10-24 02:57:16,654 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [786945697] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 02:57:16,654 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 02:57:16,654 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 02:57:16,655 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [50015329] [2024-10-24 02:57:16,656 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 02:57:16,659 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-24 02:57:16,660 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 02:57:16,677 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-24 02:57:16,678 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-24 02:57:16,681 INFO L87 Difference]: Start difference. First operand has 882 states, 879 states have (on average 1.9704209328782707) internal successors, (1732), 881 states have internal predecessors, (1732), 0 states have call successors, (0), 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 13.5) internal successors, (27), 2 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 02:57:16,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 02:57:16,766 INFO L93 Difference]: Finished difference Result 1699 states and 3336 transitions. [2024-10-24 02:57:16,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-24 02:57:16,768 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 13.5) internal successors, (27), 2 states have internal predecessors, (27), 0 states have call successors, (0), 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 27 [2024-10-24 02:57:16,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 02:57:16,782 INFO L225 Difference]: With dead ends: 1699 [2024-10-24 02:57:16,783 INFO L226 Difference]: Without dead ends: 878 [2024-10-24 02:57:16,790 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 [2024-10-24 02:57:16,794 INFO L432 NwaCegarLoop]: 1661 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1661 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 02:57:16,795 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1661 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 02:57:16,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 878 states. [2024-10-24 02:57:16,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 878 to 878. [2024-10-24 02:57:16,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 878 states, 876 states have (on average 1.8961187214611872) internal successors, (1661), 877 states have internal predecessors, (1661), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 02:57:16,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 878 states to 878 states and 1661 transitions. [2024-10-24 02:57:16,879 INFO L78 Accepts]: Start accepts. Automaton has 878 states and 1661 transitions. Word has length 27 [2024-10-24 02:57:16,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 02:57:16,879 INFO L471 AbstractCegarLoop]: Abstraction has 878 states and 1661 transitions. [2024-10-24 02:57:16,880 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 13.5) internal successors, (27), 2 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 02:57:16,880 INFO L276 IsEmpty]: Start isEmpty. Operand 878 states and 1661 transitions. [2024-10-24 02:57:16,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2024-10-24 02:57:16,881 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 02:57:16,881 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 02:57:16,882 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-24 02:57:16,882 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 02:57:16,883 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 02:57:16,883 INFO L85 PathProgramCache]: Analyzing trace with hash -1904433708, now seen corresponding path program 1 times [2024-10-24 02:57:16,883 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 02:57:16,883 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [625643277] [2024-10-24 02:57:16,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 02:57:16,884 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 02:57:16,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:57:17,081 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 02:57:17,081 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 02:57:17,082 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [625643277] [2024-10-24 02:57:17,083 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [625643277] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 02:57:17,083 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 02:57:17,083 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 02:57:17,083 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [748964204] [2024-10-24 02:57:17,084 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 02:57:17,085 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 02:57:17,087 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 02:57:17,087 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 02:57:17,088 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 02:57:17,088 INFO L87 Difference]: Start difference. First operand 878 states and 1661 transitions. Second operand has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 02:57:17,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 02:57:17,248 INFO L93 Difference]: Finished difference Result 940 states and 1760 transitions. [2024-10-24 02:57:17,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 02:57:17,249 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 0 states have call successors, (0), 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 27 [2024-10-24 02:57:17,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 02:57:17,253 INFO L225 Difference]: With dead ends: 940 [2024-10-24 02:57:17,253 INFO L226 Difference]: Without dead ends: 878 [2024-10-24 02:57:17,254 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 [2024-10-24 02:57:17,255 INFO L432 NwaCegarLoop]: 1658 mSDtfsCounter, 0 mSDsluCounter, 3251 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 4909 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 02:57:17,255 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 4909 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 02:57:17,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 878 states. [2024-10-24 02:57:17,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 878 to 878. [2024-10-24 02:57:17,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 878 states, 876 states have (on average 1.82648401826484) internal successors, (1600), 877 states have internal predecessors, (1600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 02:57:17,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 878 states to 878 states and 1600 transitions. [2024-10-24 02:57:17,274 INFO L78 Accepts]: Start accepts. Automaton has 878 states and 1600 transitions. Word has length 27 [2024-10-24 02:57:17,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 02:57:17,275 INFO L471 AbstractCegarLoop]: Abstraction has 878 states and 1600 transitions. [2024-10-24 02:57:17,275 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 02:57:17,275 INFO L276 IsEmpty]: Start isEmpty. Operand 878 states and 1600 transitions. [2024-10-24 02:57:17,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2024-10-24 02:57:17,276 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 02:57:17,277 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] [2024-10-24 02:57:17,277 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-24 02:57:17,277 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 02:57:17,278 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 02:57:17,278 INFO L85 PathProgramCache]: Analyzing trace with hash 715738867, now seen corresponding path program 1 times [2024-10-24 02:57:17,278 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 02:57:17,278 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1804786350] [2024-10-24 02:57:17,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 02:57:17,279 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 02:57:17,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:57:17,470 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 02:57:17,470 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 02:57:17,470 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1804786350] [2024-10-24 02:57:17,470 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1804786350] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 02:57:17,471 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 02:57:17,471 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 02:57:17,471 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2104822891] [2024-10-24 02:57:17,471 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 02:57:17,471 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 02:57:17,471 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 02:57:17,472 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 02:57:17,472 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 02:57:17,472 INFO L87 Difference]: Start difference. First operand 878 states and 1600 transitions. Second operand has 4 states, 4 states have (on average 15.0) internal successors, (60), 3 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) [2024-10-24 02:57:22,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 02:57:22,765 INFO L93 Difference]: Finished difference Result 3133 states and 5909 transitions. [2024-10-24 02:57:22,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 02:57:22,766 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 3 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 [2024-10-24 02:57:22,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 02:57:22,774 INFO L225 Difference]: With dead ends: 3133 [2024-10-24 02:57:22,775 INFO L226 Difference]: Without dead ends: 2380 [2024-10-24 02:57:22,776 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-24 02:57:22,777 INFO L432 NwaCegarLoop]: 833 mSDtfsCounter, 2514 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 5357 mSolverCounterSat, 1153 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2514 SdHoareTripleChecker+Valid, 851 SdHoareTripleChecker+Invalid, 6510 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1153 IncrementalHoareTripleChecker+Valid, 5357 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2024-10-24 02:57:22,777 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2514 Valid, 851 Invalid, 6510 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1153 Valid, 5357 Invalid, 0 Unknown, 0 Unchecked, 5.2s Time] [2024-10-24 02:57:22,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2380 states. [2024-10-24 02:57:22,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2380 to 2380. [2024-10-24 02:57:22,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2380 states, 2378 states have (on average 1.5618166526492852) internal successors, (3714), 2379 states have internal predecessors, (3714), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 02:57:22,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2380 states to 2380 states and 3714 transitions. [2024-10-24 02:57:22,819 INFO L78 Accepts]: Start accepts. Automaton has 2380 states and 3714 transitions. Word has length 60 [2024-10-24 02:57:22,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 02:57:22,820 INFO L471 AbstractCegarLoop]: Abstraction has 2380 states and 3714 transitions. [2024-10-24 02:57:22,820 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 3 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) [2024-10-24 02:57:22,820 INFO L276 IsEmpty]: Start isEmpty. Operand 2380 states and 3714 transitions. [2024-10-24 02:57:22,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2024-10-24 02:57:22,822 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 02:57:22,822 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, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 02:57:22,822 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-24 02:57:22,822 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 02:57:22,823 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 02:57:22,823 INFO L85 PathProgramCache]: Analyzing trace with hash -537635452, now seen corresponding path program 1 times [2024-10-24 02:57:22,823 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 02:57:22,823 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1853688144] [2024-10-24 02:57:22,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 02:57:22,824 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 02:57:22,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:57:23,126 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 02:57:23,126 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 02:57:23,127 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1853688144] [2024-10-24 02:57:23,127 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1853688144] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 02:57:23,127 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 02:57:23,127 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-10-24 02:57:23,127 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2033390262] [2024-10-24 02:57:23,128 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 02:57:23,128 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-24 02:57:23,128 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 02:57:23,128 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-24 02:57:23,129 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-10-24 02:57:23,129 INFO L87 Difference]: Start difference. First operand 2380 states and 3714 transitions. Second operand has 10 states, 10 states have (on average 8.7) internal successors, (87), 10 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) [2024-10-24 02:57:23,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 02:57:23,652 INFO L93 Difference]: Finished difference Result 3324 states and 5250 transitions. [2024-10-24 02:57:23,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-10-24 02:57:23,652 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 8.7) internal successors, (87), 10 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 87 [2024-10-24 02:57:23,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 02:57:23,663 INFO L225 Difference]: With dead ends: 3324 [2024-10-24 02:57:23,663 INFO L226 Difference]: Without dead ends: 3265 [2024-10-24 02:57:23,665 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=162, Invalid=344, Unknown=0, NotChecked=0, Total=506 [2024-10-24 02:57:23,666 INFO L432 NwaCegarLoop]: 1593 mSDtfsCounter, 13341 mSDsluCounter, 4679 mSDsCounter, 0 mSdLazyCounter, 421 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13341 SdHoareTripleChecker+Valid, 6272 SdHoareTripleChecker+Invalid, 432 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 421 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-24 02:57:23,666 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [13341 Valid, 6272 Invalid, 432 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 421 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-24 02:57:23,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3265 states. [2024-10-24 02:57:23,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3265 to 2437. [2024-10-24 02:57:23,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2437 states, 2435 states have (on average 1.5634496919917864) internal successors, (3807), 2436 states have internal predecessors, (3807), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 02:57:23,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2437 states to 2437 states and 3807 transitions. [2024-10-24 02:57:23,721 INFO L78 Accepts]: Start accepts. Automaton has 2437 states and 3807 transitions. Word has length 87 [2024-10-24 02:57:23,722 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 02:57:23,722 INFO L471 AbstractCegarLoop]: Abstraction has 2437 states and 3807 transitions. [2024-10-24 02:57:23,723 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 8.7) internal successors, (87), 10 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) [2024-10-24 02:57:23,723 INFO L276 IsEmpty]: Start isEmpty. Operand 2437 states and 3807 transitions. [2024-10-24 02:57:23,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2024-10-24 02:57:23,726 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 02:57:23,726 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 02:57:23,727 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-24 02:57:23,727 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 02:57:23,728 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 02:57:23,729 INFO L85 PathProgramCache]: Analyzing trace with hash -1411800044, now seen corresponding path program 1 times [2024-10-24 02:57:23,729 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 02:57:23,729 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1583427068] [2024-10-24 02:57:23,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 02:57:23,729 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 02:57:23,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:57:23,859 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 02:57:23,859 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 02:57:23,859 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1583427068] [2024-10-24 02:57:23,859 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1583427068] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 02:57:23,860 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 02:57:23,860 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 02:57:23,860 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1226627642] [2024-10-24 02:57:23,860 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 02:57:23,860 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 02:57:23,860 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 02:57:23,861 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 02:57:23,861 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 02:57:23,861 INFO L87 Difference]: Start difference. First operand 2437 states and 3807 transitions. Second operand has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 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) [2024-10-24 02:57:23,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 02:57:23,909 INFO L93 Difference]: Finished difference Result 2658 states and 4166 transitions. [2024-10-24 02:57:23,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 02:57:23,910 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 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 89 [2024-10-24 02:57:23,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 02:57:23,921 INFO L225 Difference]: With dead ends: 2658 [2024-10-24 02:57:23,921 INFO L226 Difference]: Without dead ends: 2542 [2024-10-24 02:57:23,922 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 [2024-10-24 02:57:23,924 INFO L432 NwaCegarLoop]: 1595 mSDtfsCounter, 1504 mSDsluCounter, 90 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1504 SdHoareTripleChecker+Valid, 1685 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 02:57:23,924 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1504 Valid, 1685 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 02:57:23,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2542 states. [2024-10-24 02:57:23,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2542 to 2540. [2024-10-24 02:57:23,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2540 states, 2538 states have (on average 1.5654058313632782) internal successors, (3973), 2539 states have internal predecessors, (3973), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 02:57:23,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2540 states to 2540 states and 3973 transitions. [2024-10-24 02:57:23,974 INFO L78 Accepts]: Start accepts. Automaton has 2540 states and 3973 transitions. Word has length 89 [2024-10-24 02:57:23,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 02:57:23,974 INFO L471 AbstractCegarLoop]: Abstraction has 2540 states and 3973 transitions. [2024-10-24 02:57:23,974 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 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) [2024-10-24 02:57:23,974 INFO L276 IsEmpty]: Start isEmpty. Operand 2540 states and 3973 transitions. [2024-10-24 02:57:23,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2024-10-24 02:57:23,976 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 02:57:23,976 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 02:57:23,976 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-24 02:57:23,977 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 02:57:23,977 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 02:57:23,978 INFO L85 PathProgramCache]: Analyzing trace with hash -1409655092, now seen corresponding path program 1 times [2024-10-24 02:57:23,978 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 02:57:23,978 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1346510858] [2024-10-24 02:57:23,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 02:57:23,978 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 02:57:24,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:57:24,534 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 02:57:24,535 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 02:57:24,535 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1346510858] [2024-10-24 02:57:24,535 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1346510858] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 02:57:24,536 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 02:57:24,536 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-10-24 02:57:24,536 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1625251401] [2024-10-24 02:57:24,536 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 02:57:24,537 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-24 02:57:24,537 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 02:57:24,537 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-24 02:57:24,538 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2024-10-24 02:57:24,538 INFO L87 Difference]: Start difference. First operand 2540 states and 3973 transitions. Second operand has 10 states, 10 states have (on average 8.9) internal successors, (89), 10 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) [2024-10-24 02:57:24,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 02:57:24,991 INFO L93 Difference]: Finished difference Result 2761 states and 4329 transitions. [2024-10-24 02:57:24,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-24 02:57:24,992 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 8.9) internal successors, (89), 10 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 89 [2024-10-24 02:57:24,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 02:57:24,999 INFO L225 Difference]: With dead ends: 2761 [2024-10-24 02:57:24,999 INFO L226 Difference]: Without dead ends: 2542 [2024-10-24 02:57:25,001 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=84, Invalid=156, Unknown=0, NotChecked=0, Total=240 [2024-10-24 02:57:25,001 INFO L432 NwaCegarLoop]: 1587 mSDtfsCounter, 3092 mSDsluCounter, 656 mSDsCounter, 0 mSdLazyCounter, 143 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3092 SdHoareTripleChecker+Valid, 2243 SdHoareTripleChecker+Invalid, 147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 143 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 02:57:25,002 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3092 Valid, 2243 Invalid, 147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 143 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 02:57:25,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2542 states. [2024-10-24 02:57:25,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2542 to 2540. [2024-10-24 02:57:25,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2540 states, 2538 states have (on average 1.5646178092986605) internal successors, (3971), 2539 states have internal predecessors, (3971), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 02:57:25,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2540 states to 2540 states and 3971 transitions. [2024-10-24 02:57:25,052 INFO L78 Accepts]: Start accepts. Automaton has 2540 states and 3971 transitions. Word has length 89 [2024-10-24 02:57:25,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 02:57:25,052 INFO L471 AbstractCegarLoop]: Abstraction has 2540 states and 3971 transitions. [2024-10-24 02:57:25,052 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 8.9) internal successors, (89), 10 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) [2024-10-24 02:57:25,053 INFO L276 IsEmpty]: Start isEmpty. Operand 2540 states and 3971 transitions. [2024-10-24 02:57:25,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-10-24 02:57:25,054 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 02:57:25,054 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 02:57:25,054 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-24 02:57:25,054 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 02:57:25,055 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 02:57:25,055 INFO L85 PathProgramCache]: Analyzing trace with hash -878537093, now seen corresponding path program 1 times [2024-10-24 02:57:25,055 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 02:57:25,055 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [510028225] [2024-10-24 02:57:25,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 02:57:25,056 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 02:57:25,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:57:25,252 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 02:57:25,252 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 02:57:25,252 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [510028225] [2024-10-24 02:57:25,252 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [510028225] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 02:57:25,253 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 02:57:25,253 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 02:57:25,253 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1257248639] [2024-10-24 02:57:25,253 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 02:57:25,253 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 02:57:25,253 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 02:57:25,254 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 02:57:25,254 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 02:57:25,254 INFO L87 Difference]: Start difference. First operand 2540 states and 3971 transitions. Second operand has 4 states, 4 states have (on average 22.5) internal successors, (90), 4 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 02:57:25,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 02:57:25,297 INFO L93 Difference]: Finished difference Result 2546 states and 3978 transitions. [2024-10-24 02:57:25,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 02:57:25,297 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 22.5) internal successors, (90), 4 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 90 [2024-10-24 02:57:25,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 02:57:25,305 INFO L225 Difference]: With dead ends: 2546 [2024-10-24 02:57:25,305 INFO L226 Difference]: Without dead ends: 2544 [2024-10-24 02:57:25,306 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 [2024-10-24 02:57:25,308 INFO L432 NwaCegarLoop]: 1596 mSDtfsCounter, 0 mSDsluCounter, 3184 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 4780 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 [2024-10-24 02:57:25,308 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 4780 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 02:57:25,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2544 states. [2024-10-24 02:57:25,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2544 to 2544. [2024-10-24 02:57:25,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2544 states, 2542 states have (on average 1.5633359559402045) internal successors, (3974), 2543 states have internal predecessors, (3974), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 02:57:25,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2544 states to 2544 states and 3974 transitions. [2024-10-24 02:57:25,357 INFO L78 Accepts]: Start accepts. Automaton has 2544 states and 3974 transitions. Word has length 90 [2024-10-24 02:57:25,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 02:57:25,357 INFO L471 AbstractCegarLoop]: Abstraction has 2544 states and 3974 transitions. [2024-10-24 02:57:25,358 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.5) internal successors, (90), 4 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 02:57:25,358 INFO L276 IsEmpty]: Start isEmpty. Operand 2544 states and 3974 transitions. [2024-10-24 02:57:25,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-10-24 02:57:25,359 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 02:57:25,359 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 02:57:25,359 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-24 02:57:25,359 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 02:57:25,360 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 02:57:25,360 INFO L85 PathProgramCache]: Analyzing trace with hash 1337202636, now seen corresponding path program 1 times [2024-10-24 02:57:25,360 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 02:57:25,360 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [327028799] [2024-10-24 02:57:25,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 02:57:25,361 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 02:57:25,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:57:25,548 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 02:57:25,548 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 02:57:25,549 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [327028799] [2024-10-24 02:57:25,549 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [327028799] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 02:57:25,549 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 02:57:25,549 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 02:57:25,549 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1453268582] [2024-10-24 02:57:25,549 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 02:57:25,549 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 02:57:25,550 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 02:57:25,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 02:57:25,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 02:57:25,550 INFO L87 Difference]: Start difference. First operand 2544 states and 3974 transitions. Second operand has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 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) [2024-10-24 02:57:25,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 02:57:25,604 INFO L93 Difference]: Finished difference Result 2778 states and 4347 transitions. [2024-10-24 02:57:25,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 02:57:25,605 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 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 91 [2024-10-24 02:57:25,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 02:57:25,613 INFO L225 Difference]: With dead ends: 2778 [2024-10-24 02:57:25,614 INFO L226 Difference]: Without dead ends: 2658 [2024-10-24 02:57:25,615 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 [2024-10-24 02:57:25,615 INFO L432 NwaCegarLoop]: 1677 mSDtfsCounter, 1524 mSDsluCounter, 96 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1524 SdHoareTripleChecker+Valid, 1773 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 [2024-10-24 02:57:25,616 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1524 Valid, 1773 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 02:57:25,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2658 states. [2024-10-24 02:57:25,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2658 to 2656. [2024-10-24 02:57:25,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2656 states, 2654 states have (on average 1.5640542577241898) internal successors, (4151), 2655 states have internal predecessors, (4151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 02:57:25,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2656 states to 2656 states and 4151 transitions. [2024-10-24 02:57:25,673 INFO L78 Accepts]: Start accepts. Automaton has 2656 states and 4151 transitions. Word has length 91 [2024-10-24 02:57:25,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 02:57:25,674 INFO L471 AbstractCegarLoop]: Abstraction has 2656 states and 4151 transitions. [2024-10-24 02:57:25,674 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 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) [2024-10-24 02:57:25,674 INFO L276 IsEmpty]: Start isEmpty. Operand 2656 states and 4151 transitions. [2024-10-24 02:57:25,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-10-24 02:57:25,675 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 02:57:25,675 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 02:57:25,676 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-24 02:57:25,676 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 02:57:25,676 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 02:57:25,676 INFO L85 PathProgramCache]: Analyzing trace with hash 1411815116, now seen corresponding path program 1 times [2024-10-24 02:57:25,677 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 02:57:25,677 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1505147251] [2024-10-24 02:57:25,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 02:57:25,677 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 02:57:25,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:57:25,772 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 02:57:25,773 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 02:57:25,773 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1505147251] [2024-10-24 02:57:25,773 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1505147251] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 02:57:25,773 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 02:57:25,773 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 02:57:25,774 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [816670232] [2024-10-24 02:57:25,774 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 02:57:25,774 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 02:57:25,774 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 02:57:25,775 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 02:57:25,775 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 02:57:25,775 INFO L87 Difference]: Start difference. First operand 2656 states and 4151 transitions. Second operand has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 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) [2024-10-24 02:57:25,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 02:57:25,828 INFO L93 Difference]: Finished difference Result 3298 states and 5171 transitions. [2024-10-24 02:57:25,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 02:57:25,829 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 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 91 [2024-10-24 02:57:25,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 02:57:25,838 INFO L225 Difference]: With dead ends: 3298 [2024-10-24 02:57:25,839 INFO L226 Difference]: Without dead ends: 2965 [2024-10-24 02:57:25,840 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 [2024-10-24 02:57:25,841 INFO L432 NwaCegarLoop]: 1679 mSDtfsCounter, 1522 mSDsluCounter, 100 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1522 SdHoareTripleChecker+Valid, 1779 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 [2024-10-24 02:57:25,841 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1522 Valid, 1779 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 02:57:25,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2965 states. [2024-10-24 02:57:25,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2965 to 2963. [2024-10-24 02:57:25,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2963 states, 2961 states have (on average 1.5646740965889903) internal successors, (4633), 2962 states have internal predecessors, (4633), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 02:57:25,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2963 states to 2963 states and 4633 transitions. [2024-10-24 02:57:25,913 INFO L78 Accepts]: Start accepts. Automaton has 2963 states and 4633 transitions. Word has length 91 [2024-10-24 02:57:25,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 02:57:25,913 INFO L471 AbstractCegarLoop]: Abstraction has 2963 states and 4633 transitions. [2024-10-24 02:57:25,913 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 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) [2024-10-24 02:57:25,913 INFO L276 IsEmpty]: Start isEmpty. Operand 2963 states and 4633 transitions. [2024-10-24 02:57:25,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-10-24 02:57:25,914 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 02:57:25,915 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 02:57:25,915 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-24 02:57:25,915 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 02:57:25,915 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 02:57:25,915 INFO L85 PathProgramCache]: Analyzing trace with hash 1756812492, now seen corresponding path program 1 times [2024-10-24 02:57:25,916 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 02:57:25,916 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1871814012] [2024-10-24 02:57:25,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 02:57:25,916 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 02:57:25,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:57:25,995 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 02:57:25,996 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 02:57:25,996 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1871814012] [2024-10-24 02:57:25,996 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1871814012] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 02:57:25,996 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 02:57:25,996 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 02:57:25,997 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [235831651] [2024-10-24 02:57:25,997 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 02:57:25,997 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 02:57:25,997 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 02:57:25,998 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 02:57:25,998 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 02:57:25,998 INFO L87 Difference]: Start difference. First operand 2963 states and 4633 transitions. Second operand has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 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) [2024-10-24 02:57:26,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 02:57:26,043 INFO L93 Difference]: Finished difference Result 4195 states and 6575 transitions. [2024-10-24 02:57:26,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 02:57:26,044 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 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 91 [2024-10-24 02:57:26,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 02:57:26,052 INFO L225 Difference]: With dead ends: 4195 [2024-10-24 02:57:26,052 INFO L226 Difference]: Without dead ends: 3555 [2024-10-24 02:57:26,054 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 [2024-10-24 02:57:26,055 INFO L432 NwaCegarLoop]: 1667 mSDtfsCounter, 1518 mSDsluCounter, 108 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1518 SdHoareTripleChecker+Valid, 1775 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 [2024-10-24 02:57:26,055 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1518 Valid, 1775 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 02:57:26,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3555 states. [2024-10-24 02:57:26,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3555 to 3553. [2024-10-24 02:57:26,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3553 states, 3551 states have (on average 1.5626584060827935) internal successors, (5549), 3552 states have internal predecessors, (5549), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 02:57:26,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3553 states to 3553 states and 5549 transitions. [2024-10-24 02:57:26,101 INFO L78 Accepts]: Start accepts. Automaton has 3553 states and 5549 transitions. Word has length 91 [2024-10-24 02:57:26,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 02:57:26,102 INFO L471 AbstractCegarLoop]: Abstraction has 3553 states and 5549 transitions. [2024-10-24 02:57:26,102 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 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) [2024-10-24 02:57:26,102 INFO L276 IsEmpty]: Start isEmpty. Operand 3553 states and 5549 transitions. [2024-10-24 02:57:26,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-10-24 02:57:26,103 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 02:57:26,103 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 02:57:26,103 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-24 02:57:26,103 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 02:57:26,103 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 02:57:26,103 INFO L85 PathProgramCache]: Analyzing trace with hash 1488229324, now seen corresponding path program 1 times [2024-10-24 02:57:26,104 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 02:57:26,104 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1691186672] [2024-10-24 02:57:26,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 02:57:26,104 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 02:57:26,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:57:26,219 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 02:57:26,220 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 02:57:26,221 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1691186672] [2024-10-24 02:57:26,221 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1691186672] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 02:57:26,221 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 02:57:26,221 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 02:57:26,222 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1470671899] [2024-10-24 02:57:26,222 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 02:57:26,222 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 02:57:26,222 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 02:57:26,222 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 02:57:26,222 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 02:57:26,223 INFO L87 Difference]: Start difference. First operand 3553 states and 5549 transitions. Second operand has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 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) [2024-10-24 02:57:26,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 02:57:26,320 INFO L93 Difference]: Finished difference Result 5917 states and 9239 transitions. [2024-10-24 02:57:26,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 02:57:26,320 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 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 91 [2024-10-24 02:57:26,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 02:57:26,335 INFO L225 Difference]: With dead ends: 5917 [2024-10-24 02:57:26,335 INFO L226 Difference]: Without dead ends: 4687 [2024-10-24 02:57:26,338 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 [2024-10-24 02:57:26,339 INFO L432 NwaCegarLoop]: 1665 mSDtfsCounter, 1516 mSDsluCounter, 112 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1516 SdHoareTripleChecker+Valid, 1777 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 [2024-10-24 02:57:26,339 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1516 Valid, 1777 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 02:57:26,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4687 states. [2024-10-24 02:57:26,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4687 to 4685. [2024-10-24 02:57:26,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4685 states, 4683 states have (on average 1.5556267349989323) internal successors, (7285), 4684 states have internal predecessors, (7285), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 02:57:26,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4685 states to 4685 states and 7285 transitions. [2024-10-24 02:57:26,435 INFO L78 Accepts]: Start accepts. Automaton has 4685 states and 7285 transitions. Word has length 91 [2024-10-24 02:57:26,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 02:57:26,435 INFO L471 AbstractCegarLoop]: Abstraction has 4685 states and 7285 transitions. [2024-10-24 02:57:26,435 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 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) [2024-10-24 02:57:26,437 INFO L276 IsEmpty]: Start isEmpty. Operand 4685 states and 7285 transitions. [2024-10-24 02:57:26,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-10-24 02:57:26,438 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 02:57:26,438 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 02:57:26,438 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-24 02:57:26,439 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 02:57:26,439 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 02:57:26,439 INFO L85 PathProgramCache]: Analyzing trace with hash 1528173260, now seen corresponding path program 1 times [2024-10-24 02:57:26,439 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 02:57:26,439 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [935680320] [2024-10-24 02:57:26,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 02:57:26,440 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 02:57:26,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:57:26,508 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 02:57:26,509 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 02:57:26,509 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [935680320] [2024-10-24 02:57:26,509 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [935680320] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 02:57:26,509 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 02:57:26,509 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 02:57:26,509 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1181928352] [2024-10-24 02:57:26,509 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 02:57:26,510 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 02:57:26,510 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 02:57:26,510 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 02:57:26,510 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 02:57:26,510 INFO L87 Difference]: Start difference. First operand 4685 states and 7285 transitions. Second operand has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 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) [2024-10-24 02:57:26,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 02:57:26,609 INFO L93 Difference]: Finished difference Result 9217 states and 14279 transitions. [2024-10-24 02:57:26,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 02:57:26,610 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 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 91 [2024-10-24 02:57:26,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 02:57:26,625 INFO L225 Difference]: With dead ends: 9217 [2024-10-24 02:57:26,625 INFO L226 Difference]: Without dead ends: 6855 [2024-10-24 02:57:26,630 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 [2024-10-24 02:57:26,630 INFO L432 NwaCegarLoop]: 1663 mSDtfsCounter, 1514 mSDsluCounter, 116 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1514 SdHoareTripleChecker+Valid, 1779 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 [2024-10-24 02:57:26,631 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1514 Valid, 1779 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 02:57:26,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6855 states. [2024-10-24 02:57:26,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6855 to 6853. [2024-10-24 02:57:26,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6853 states, 6851 states have (on average 1.5421106407823675) internal successors, (10565), 6852 states have internal predecessors, (10565), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 02:57:26,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6853 states to 6853 states and 10565 transitions. [2024-10-24 02:57:26,812 INFO L78 Accepts]: Start accepts. Automaton has 6853 states and 10565 transitions. Word has length 91 [2024-10-24 02:57:26,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 02:57:26,812 INFO L471 AbstractCegarLoop]: Abstraction has 6853 states and 10565 transitions. [2024-10-24 02:57:26,813 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 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) [2024-10-24 02:57:26,813 INFO L276 IsEmpty]: Start isEmpty. Operand 6853 states and 10565 transitions. [2024-10-24 02:57:26,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-10-24 02:57:26,814 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 02:57:26,814 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 02:57:26,814 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-24 02:57:26,814 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 02:57:26,814 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 02:57:26,814 INFO L85 PathProgramCache]: Analyzing trace with hash 902517196, now seen corresponding path program 1 times [2024-10-24 02:57:26,815 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 02:57:26,815 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1826830031] [2024-10-24 02:57:26,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 02:57:26,815 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 02:57:26,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:57:26,883 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 02:57:26,883 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 02:57:26,884 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1826830031] [2024-10-24 02:57:26,884 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1826830031] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 02:57:26,884 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 02:57:26,884 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 02:57:26,884 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [188798624] [2024-10-24 02:57:26,884 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 02:57:26,884 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 02:57:26,885 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 02:57:26,885 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 02:57:26,886 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 02:57:26,886 INFO L87 Difference]: Start difference. First operand 6853 states and 10565 transitions. Second operand has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 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) [2024-10-24 02:57:27,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 02:57:27,113 INFO L93 Difference]: Finished difference Result 15529 states and 23783 transitions. [2024-10-24 02:57:27,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 02:57:27,114 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 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 91 [2024-10-24 02:57:27,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 02:57:27,140 INFO L225 Difference]: With dead ends: 15529 [2024-10-24 02:57:27,140 INFO L226 Difference]: Without dead ends: 10999 [2024-10-24 02:57:27,150 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 [2024-10-24 02:57:27,151 INFO L432 NwaCegarLoop]: 1661 mSDtfsCounter, 1512 mSDsluCounter, 120 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1512 SdHoareTripleChecker+Valid, 1781 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 [2024-10-24 02:57:27,153 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1512 Valid, 1781 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 02:57:27,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10999 states. [2024-10-24 02:57:27,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10999 to 10997. [2024-10-24 02:57:27,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10997 states, 10995 states have (on average 1.5226011823556163) internal successors, (16741), 10996 states have internal predecessors, (16741), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 02:57:27,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10997 states to 10997 states and 16741 transitions. [2024-10-24 02:57:27,386 INFO L78 Accepts]: Start accepts. Automaton has 10997 states and 16741 transitions. Word has length 91 [2024-10-24 02:57:27,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 02:57:27,387 INFO L471 AbstractCegarLoop]: Abstraction has 10997 states and 16741 transitions. [2024-10-24 02:57:27,387 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 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) [2024-10-24 02:57:27,387 INFO L276 IsEmpty]: Start isEmpty. Operand 10997 states and 16741 transitions. [2024-10-24 02:57:27,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-10-24 02:57:27,388 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 02:57:27,388 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 02:57:27,388 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-24 02:57:27,388 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 02:57:27,389 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 02:57:27,389 INFO L85 PathProgramCache]: Analyzing trace with hash 1791250636, now seen corresponding path program 1 times [2024-10-24 02:57:27,389 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 02:57:27,390 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1481902861] [2024-10-24 02:57:27,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 02:57:27,390 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 02:57:27,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:57:27,468 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 02:57:27,469 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 02:57:27,469 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1481902861] [2024-10-24 02:57:27,469 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1481902861] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 02:57:27,469 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 02:57:27,469 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 02:57:27,470 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1219184866] [2024-10-24 02:57:27,470 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 02:57:27,470 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 02:57:27,470 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 02:57:27,471 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 02:57:27,471 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 02:57:27,471 INFO L87 Difference]: Start difference. First operand 10997 states and 16741 transitions. Second operand has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 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) [2024-10-24 02:57:27,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 02:57:27,734 INFO L93 Difference]: Finished difference Result 27577 states and 41639 transitions. [2024-10-24 02:57:27,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 02:57:27,735 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 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 91 [2024-10-24 02:57:27,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 02:57:27,769 INFO L225 Difference]: With dead ends: 27577 [2024-10-24 02:57:27,769 INFO L226 Difference]: Without dead ends: 18903 [2024-10-24 02:57:27,793 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 [2024-10-24 02:57:27,794 INFO L432 NwaCegarLoop]: 1659 mSDtfsCounter, 1510 mSDsluCounter, 124 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1510 SdHoareTripleChecker+Valid, 1783 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 [2024-10-24 02:57:27,797 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1510 Valid, 1783 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 02:57:27,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18903 states. [2024-10-24 02:57:28,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18903 to 18901. [2024-10-24 02:57:28,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18901 states, 18899 states have (on average 1.4987565479655007) internal successors, (28325), 18900 states have internal predecessors, (28325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 02:57:28,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18901 states to 18901 states and 28325 transitions. [2024-10-24 02:57:28,758 INFO L78 Accepts]: Start accepts. Automaton has 18901 states and 28325 transitions. Word has length 91 [2024-10-24 02:57:28,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 02:57:28,758 INFO L471 AbstractCegarLoop]: Abstraction has 18901 states and 28325 transitions. [2024-10-24 02:57:28,758 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 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) [2024-10-24 02:57:28,758 INFO L276 IsEmpty]: Start isEmpty. Operand 18901 states and 28325 transitions. [2024-10-24 02:57:28,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-10-24 02:57:28,759 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 02:57:28,759 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 02:57:28,759 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-10-24 02:57:28,760 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 02:57:28,760 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 02:57:28,760 INFO L85 PathProgramCache]: Analyzing trace with hash -2127768116, now seen corresponding path program 1 times [2024-10-24 02:57:28,764 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 02:57:28,764 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [73501801] [2024-10-24 02:57:28,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 02:57:28,764 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 02:57:28,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:57:28,879 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 02:57:28,880 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 02:57:28,881 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [73501801] [2024-10-24 02:57:28,881 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [73501801] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 02:57:28,881 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 02:57:28,881 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 02:57:28,881 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1407060091] [2024-10-24 02:57:28,882 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 02:57:28,882 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 02:57:28,882 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 02:57:28,882 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 02:57:28,886 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 02:57:28,886 INFO L87 Difference]: Start difference. First operand 18901 states and 28325 transitions. Second operand has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 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) [2024-10-24 02:57:29,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 02:57:29,751 INFO L93 Difference]: Finished difference Result 50521 states and 75047 transitions. [2024-10-24 02:57:29,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 02:57:29,752 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 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 91 [2024-10-24 02:57:29,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 02:57:29,814 INFO L225 Difference]: With dead ends: 50521 [2024-10-24 02:57:29,815 INFO L226 Difference]: Without dead ends: 33943 [2024-10-24 02:57:29,845 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 [2024-10-24 02:57:29,846 INFO L432 NwaCegarLoop]: 1677 mSDtfsCounter, 1520 mSDsluCounter, 104 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1520 SdHoareTripleChecker+Valid, 1781 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 [2024-10-24 02:57:29,846 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1520 Valid, 1781 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 02:57:29,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33943 states. [2024-10-24 02:57:30,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33943 to 33941. [2024-10-24 02:57:31,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33941 states, 33939 states have (on average 1.471964406729721) internal successors, (49957), 33940 states have internal predecessors, (49957), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 02:57:31,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33941 states to 33941 states and 49957 transitions. [2024-10-24 02:57:31,245 INFO L78 Accepts]: Start accepts. Automaton has 33941 states and 49957 transitions. Word has length 91 [2024-10-24 02:57:31,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 02:57:31,246 INFO L471 AbstractCegarLoop]: Abstraction has 33941 states and 49957 transitions. [2024-10-24 02:57:31,246 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 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) [2024-10-24 02:57:31,246 INFO L276 IsEmpty]: Start isEmpty. Operand 33941 states and 49957 transitions. [2024-10-24 02:57:31,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2024-10-24 02:57:31,256 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 02:57:31,256 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 02:57:31,256 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-10-24 02:57:31,257 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 02:57:31,257 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 02:57:31,257 INFO L85 PathProgramCache]: Analyzing trace with hash -1625082506, now seen corresponding path program 1 times [2024-10-24 02:57:31,258 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 02:57:31,258 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [504680517] [2024-10-24 02:57:31,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 02:57:31,258 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 02:57:31,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:57:31,603 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-24 02:57:31,603 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 02:57:31,604 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [504680517] [2024-10-24 02:57:31,604 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [504680517] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 02:57:31,605 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 02:57:31,606 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-10-24 02:57:31,606 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [11136394] [2024-10-24 02:57:31,606 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 02:57:31,607 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-24 02:57:31,607 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 02:57:31,607 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-24 02:57:31,608 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-10-24 02:57:31,609 INFO L87 Difference]: Start difference. First operand 33941 states and 49957 transitions. Second operand has 10 states, 10 states have (on average 11.4) internal successors, (114), 10 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 02:57:36,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 02:57:36,824 INFO L93 Difference]: Finished difference Result 283559 states and 415662 transitions. [2024-10-24 02:57:36,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-24 02:57:36,825 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 11.4) internal successors, (114), 10 states have internal predecessors, (114), 0 states have call successors, (0), 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 115 [2024-10-24 02:57:36,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 02:57:37,439 INFO L225 Difference]: With dead ends: 283559 [2024-10-24 02:57:37,441 INFO L226 Difference]: Without dead ends: 261541 [2024-10-24 02:57:37,541 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2024-10-24 02:57:37,542 INFO L432 NwaCegarLoop]: 1693 mSDtfsCounter, 11678 mSDsluCounter, 3531 mSDsCounter, 0 mSdLazyCounter, 315 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11678 SdHoareTripleChecker+Valid, 5224 SdHoareTripleChecker+Invalid, 322 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 315 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-24 02:57:37,542 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [11678 Valid, 5224 Invalid, 322 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 315 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-24 02:57:38,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 261541 states. [2024-10-24 02:57:41,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 261541 to 60821. [2024-10-24 02:57:41,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60821 states, 60819 states have (on average 1.4633091632549038) internal successors, (88997), 60820 states have internal predecessors, (88997), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 02:57:41,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60821 states to 60821 states and 88997 transitions. [2024-10-24 02:57:41,549 INFO L78 Accepts]: Start accepts. Automaton has 60821 states and 88997 transitions. Word has length 115 [2024-10-24 02:57:41,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 02:57:41,550 INFO L471 AbstractCegarLoop]: Abstraction has 60821 states and 88997 transitions. [2024-10-24 02:57:41,550 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 11.4) internal successors, (114), 10 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 02:57:41,551 INFO L276 IsEmpty]: Start isEmpty. Operand 60821 states and 88997 transitions. [2024-10-24 02:57:41,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2024-10-24 02:57:41,559 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 02:57:41,559 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 02:57:41,560 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-10-24 02:57:41,560 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 02:57:41,560 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 02:57:41,560 INFO L85 PathProgramCache]: Analyzing trace with hash -1550470026, now seen corresponding path program 1 times [2024-10-24 02:57:41,560 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 02:57:41,561 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1532237380] [2024-10-24 02:57:41,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 02:57:41,561 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 02:57:41,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:57:41,795 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-24 02:57:41,796 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 02:57:41,796 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1532237380] [2024-10-24 02:57:41,796 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1532237380] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 02:57:41,796 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 02:57:41,796 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-10-24 02:57:41,796 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1626514506] [2024-10-24 02:57:41,796 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 02:57:41,797 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-24 02:57:41,797 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 02:57:41,797 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-24 02:57:41,797 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-10-24 02:57:41,797 INFO L87 Difference]: Start difference. First operand 60821 states and 88997 transitions. Second operand has 10 states, 10 states have (on average 11.2) internal successors, (112), 10 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 02:57:48,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 02:57:48,467 INFO L93 Difference]: Finished difference Result 315175 states and 461742 transitions. [2024-10-24 02:57:48,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-24 02:57:48,468 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 11.2) internal successors, (112), 10 states have internal predecessors, (112), 0 states have call successors, (0), 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 115 [2024-10-24 02:57:48,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 02:57:48,893 INFO L225 Difference]: With dead ends: 315175 [2024-10-24 02:57:48,893 INFO L226 Difference]: Without dead ends: 283557 [2024-10-24 02:57:48,971 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2024-10-24 02:57:48,972 INFO L432 NwaCegarLoop]: 1692 mSDtfsCounter, 11680 mSDsluCounter, 3489 mSDsCounter, 0 mSdLazyCounter, 302 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11680 SdHoareTripleChecker+Valid, 5181 SdHoareTripleChecker+Invalid, 309 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 302 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-24 02:57:48,973 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [11680 Valid, 5181 Invalid, 309 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 302 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-24 02:57:49,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 283557 states. [2024-10-24 02:57:53,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 283557 to 103445. [2024-10-24 02:57:53,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103445 states, 103443 states have (on average 1.458010691878619) internal successors, (150821), 103444 states have internal predecessors, (150821), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 02:57:54,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103445 states to 103445 states and 150821 transitions. [2024-10-24 02:57:54,165 INFO L78 Accepts]: Start accepts. Automaton has 103445 states and 150821 transitions. Word has length 115 [2024-10-24 02:57:54,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 02:57:54,166 INFO L471 AbstractCegarLoop]: Abstraction has 103445 states and 150821 transitions. [2024-10-24 02:57:54,167 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 11.2) internal successors, (112), 10 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 02:57:54,167 INFO L276 IsEmpty]: Start isEmpty. Operand 103445 states and 150821 transitions. [2024-10-24 02:57:54,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2024-10-24 02:57:54,189 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 02:57:54,189 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 02:57:54,190 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-10-24 02:57:54,190 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 02:57:54,190 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 02:57:54,190 INFO L85 PathProgramCache]: Analyzing trace with hash -1205472650, now seen corresponding path program 1 times [2024-10-24 02:57:54,191 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 02:57:54,191 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [47310192] [2024-10-24 02:57:54,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 02:57:54,195 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 02:57:54,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:57:54,729 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-10-24 02:57:54,731 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 02:57:54,731 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [47310192] [2024-10-24 02:57:54,732 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [47310192] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 02:57:54,732 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 02:57:54,732 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-10-24 02:57:54,732 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1297688903] [2024-10-24 02:57:54,732 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 02:57:54,732 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-24 02:57:54,732 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 02:57:54,733 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-24 02:57:54,733 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-10-24 02:57:54,733 INFO L87 Difference]: Start difference. First operand 103445 states and 150821 transitions. Second operand has 10 states, 10 states have (on average 10.8) internal successors, (108), 10 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 02:58:02,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 02:58:02,977 INFO L93 Difference]: Finished difference Result 346791 states and 507694 transitions. [2024-10-24 02:58:02,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-24 02:58:02,977 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.8) internal successors, (108), 10 states have internal predecessors, (108), 0 states have call successors, (0), 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 115 [2024-10-24 02:58:02,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 02:58:03,629 INFO L225 Difference]: With dead ends: 346791 [2024-10-24 02:58:03,630 INFO L226 Difference]: Without dead ends: 315173 [2024-10-24 02:58:03,721 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2024-10-24 02:58:03,721 INFO L432 NwaCegarLoop]: 1690 mSDtfsCounter, 11722 mSDsluCounter, 3485 mSDsCounter, 0 mSdLazyCounter, 257 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11722 SdHoareTripleChecker+Valid, 5175 SdHoareTripleChecker+Invalid, 264 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 257 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 02:58:03,721 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [11722 Valid, 5175 Invalid, 264 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 257 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 02:58:03,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 315173 states. [2024-10-24 02:58:09,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 315173 to 135061. [2024-10-24 02:58:09,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 135061 states, 135059 states have (on average 1.456941040582264) internal successors, (196773), 135060 states have internal predecessors, (196773), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 02:58:09,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135061 states to 135061 states and 196773 transitions. [2024-10-24 02:58:09,869 INFO L78 Accepts]: Start accepts. Automaton has 135061 states and 196773 transitions. Word has length 115 [2024-10-24 02:58:09,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 02:58:09,870 INFO L471 AbstractCegarLoop]: Abstraction has 135061 states and 196773 transitions. [2024-10-24 02:58:09,870 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.8) internal successors, (108), 10 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 02:58:09,870 INFO L276 IsEmpty]: Start isEmpty. Operand 135061 states and 196773 transitions. [2024-10-24 02:58:09,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2024-10-24 02:58:09,879 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 02:58:09,879 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 02:58:09,880 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-10-24 02:58:09,880 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 02:58:09,880 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 02:58:09,880 INFO L85 PathProgramCache]: Analyzing trace with hash -1474055818, now seen corresponding path program 1 times [2024-10-24 02:58:09,880 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 02:58:09,881 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1679605820] [2024-10-24 02:58:09,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 02:58:09,881 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 02:58:10,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:58:10,326 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-10-24 02:58:10,326 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 02:58:10,327 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1679605820] [2024-10-24 02:58:10,327 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1679605820] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 02:58:10,327 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 02:58:10,327 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-10-24 02:58:10,327 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1617133210] [2024-10-24 02:58:10,327 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 02:58:10,328 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-24 02:58:10,328 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 02:58:10,329 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-24 02:58:10,329 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-10-24 02:58:10,329 INFO L87 Difference]: Start difference. First operand 135061 states and 196773 transitions. Second operand has 10 states, 10 states have (on average 10.6) internal successors, (106), 10 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)