./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+cfa-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 61a67961 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+cfa-reducer.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 3cf612fb43c98d640569a1c9328794313185fe1b6a4dbfc7e502cbb16fa8754d --- Real Ultimate output --- This is Ultimate 0.2.5-wip.fs.cvc5-61a6796-m [2024-10-14 04:00:11,783 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-14 04:00:11,851 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-14 04:00:11,858 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-14 04:00:11,858 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-14 04:00:11,886 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-14 04:00:11,886 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-14 04:00:11,887 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-14 04:00:11,887 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-14 04:00:11,888 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-14 04:00:11,888 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-14 04:00:11,889 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-14 04:00:11,890 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-14 04:00:11,890 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-14 04:00:11,893 INFO L153 SettingsManager]: * Use SBE=true [2024-10-14 04:00:11,893 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-14 04:00:11,893 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-14 04:00:11,894 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-14 04:00:11,894 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-14 04:00:11,894 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-14 04:00:11,894 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-14 04:00:11,899 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-14 04:00:11,899 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-14 04:00:11,900 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-14 04:00:11,900 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-14 04:00:11,900 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-14 04:00:11,900 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-14 04:00:11,901 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-14 04:00:11,901 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-14 04:00:11,901 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-14 04:00:11,902 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-14 04:00:11,902 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-14 04:00:11,902 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 04:00:11,903 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-14 04:00:11,903 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-14 04:00:11,903 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-14 04:00:11,904 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-14 04:00:11,904 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-14 04:00:11,904 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-14 04:00:11,905 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-14 04:00:11,905 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-14 04:00:11,906 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-14 04:00:11,906 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3cf612fb43c98d640569a1c9328794313185fe1b6a4dbfc7e502cbb16fa8754d [2024-10-14 04:00:12,200 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-14 04:00:12,221 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-14 04:00:12,224 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-14 04:00:12,225 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-14 04:00:12,225 INFO L274 PluginConnector]: CDTParser initialized [2024-10-14 04:00:12,226 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+cfa-reducer.c [2024-10-14 04:00:13,600 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-14 04:00:13,829 INFO L384 CDTParser]: Found 1 translation units. [2024-10-14 04:00:13,830 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+cfa-reducer.c [2024-10-14 04:00:13,843 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/27602ead1/e4fd6ad865e04057b7e3e20041e4492e/FLAG9d4cde418 [2024-10-14 04:00:14,171 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/27602ead1/e4fd6ad865e04057b7e3e20041e4492e [2024-10-14 04:00:14,173 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-14 04:00:14,174 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-14 04:00:14,175 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-14 04:00:14,175 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-14 04:00:14,179 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-14 04:00:14,179 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 04:00:14" (1/1) ... [2024-10-14 04:00:14,180 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@56a68f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:00:14, skipping insertion in model container [2024-10-14 04:00:14,180 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 04:00:14" (1/1) ... [2024-10-14 04:00:14,222 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-14 04:00:14,421 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/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+cfa-reducer.c[7633,7646] [2024-10-14 04:00:14,474 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 04:00:14,495 INFO L200 MainTranslator]: Completed pre-run [2024-10-14 04:00:14,581 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/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+cfa-reducer.c[7633,7646] [2024-10-14 04:00:14,615 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 04:00:14,646 INFO L204 MainTranslator]: Completed translation [2024-10-14 04:00:14,646 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:00:14 WrapperNode [2024-10-14 04:00:14,646 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-14 04:00:14,647 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-14 04:00:14,648 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-14 04:00:14,649 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-14 04:00:14,656 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:00:14" (1/1) ... [2024-10-14 04:00:14,669 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:00:14" (1/1) ... [2024-10-14 04:00:14,708 INFO L138 Inliner]: procedures = 26, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 630 [2024-10-14 04:00:14,709 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-14 04:00:14,710 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-14 04:00:14,710 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-14 04:00:14,710 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-14 04:00:14,725 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:00:14" (1/1) ... [2024-10-14 04:00:14,726 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:00:14" (1/1) ... [2024-10-14 04:00:14,729 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:00:14" (1/1) ... [2024-10-14 04:00:14,767 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-10-14 04:00:14,767 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:00:14" (1/1) ... [2024-10-14 04:00:14,767 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:00:14" (1/1) ... [2024-10-14 04:00:14,777 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:00:14" (1/1) ... [2024-10-14 04:00:14,786 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:00:14" (1/1) ... [2024-10-14 04:00:14,791 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:00:14" (1/1) ... [2024-10-14 04:00:14,793 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:00:14" (1/1) ... [2024-10-14 04:00:14,802 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-14 04:00:14,803 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-14 04:00:14,803 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-14 04:00:14,803 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-14 04:00:14,804 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:00:14" (1/1) ... [2024-10-14 04:00:14,810 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 04:00:14,820 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 04:00:14,838 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-14 04:00:14,841 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-14 04:00:14,885 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-14 04:00:14,886 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-14 04:00:14,886 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-14 04:00:14,886 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-14 04:00:15,063 INFO L238 CfgBuilder]: Building ICFG [2024-10-14 04:00:15,065 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-14 04:00:15,584 INFO L? ?]: Removed 54 outVars from TransFormulas that were not future-live. [2024-10-14 04:00:15,587 INFO L287 CfgBuilder]: Performing block encoding [2024-10-14 04:00:15,645 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-14 04:00:15,646 INFO L314 CfgBuilder]: Removed 0 assume(true) statements. [2024-10-14 04:00:15,646 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 04:00:15 BoogieIcfgContainer [2024-10-14 04:00:15,646 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-14 04:00:15,649 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-14 04:00:15,649 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-14 04:00:15,652 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-14 04:00:15,653 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 04:00:14" (1/3) ... [2024-10-14 04:00:15,654 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48ce64bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 04:00:15, skipping insertion in model container [2024-10-14 04:00:15,655 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:00:14" (2/3) ... [2024-10-14 04:00:15,655 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48ce64bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 04:00:15, skipping insertion in model container [2024-10-14 04:00:15,655 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 04:00:15" (3/3) ... [2024-10-14 04:00:15,656 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+cfa-reducer.c [2024-10-14 04:00:15,677 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-14 04:00:15,677 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-14 04:00:15,750 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-14 04:00:15,758 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;@5276a751, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-14 04:00:15,760 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-14 04:00:15,766 INFO L276 IsEmpty]: Start isEmpty. Operand has 134 states, 132 states have (on average 1.7651515151515151) internal successors, (233), 133 states have internal predecessors, (233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:00:15,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-10-14 04:00:15,776 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:00:15,778 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] [2024-10-14 04:00:15,779 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:00:15,784 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:00:15,785 INFO L85 PathProgramCache]: Analyzing trace with hash 555090615, now seen corresponding path program 1 times [2024-10-14 04:00:15,793 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:00:15,793 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2056269579] [2024-10-14 04:00:15,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:00:15,794 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:00:15,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:00:16,346 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 04:00:16,346 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:00:16,347 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2056269579] [2024-10-14 04:00:16,347 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2056269579] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 04:00:16,348 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 04:00:16,348 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 04:00:16,349 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1523025435] [2024-10-14 04:00:16,350 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 04:00:16,354 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 04:00:16,355 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:00:16,379 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 04:00:16,380 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 04:00:16,383 INFO L87 Difference]: Start difference. First operand has 134 states, 132 states have (on average 1.7651515151515151) internal successors, (233), 133 states have internal predecessors, (233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:00:16,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 04:00:16,450 INFO L93 Difference]: Finished difference Result 290 states and 480 transitions. [2024-10-14 04:00:16,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 04:00:16,455 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 85 [2024-10-14 04:00:16,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 04:00:16,466 INFO L225 Difference]: With dead ends: 290 [2024-10-14 04:00:16,466 INFO L226 Difference]: Without dead ends: 204 [2024-10-14 04:00:16,469 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 04:00:16,472 INFO L432 NwaCegarLoop]: 340 mSDtfsCounter, 165 mSDsluCounter, 127 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 165 SdHoareTripleChecker+Valid, 467 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 04:00:16,474 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [165 Valid, 467 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 04:00:16,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 204 states. [2024-10-14 04:00:16,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 204 to 202. [2024-10-14 04:00:16,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 202 states, 201 states have (on average 1.4477611940298507) internal successors, (291), 201 states have internal predecessors, (291), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:00:16,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 202 states and 291 transitions. [2024-10-14 04:00:16,513 INFO L78 Accepts]: Start accepts. Automaton has 202 states and 291 transitions. Word has length 85 [2024-10-14 04:00:16,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 04:00:16,514 INFO L471 AbstractCegarLoop]: Abstraction has 202 states and 291 transitions. [2024-10-14 04:00:16,514 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:00:16,515 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 291 transitions. [2024-10-14 04:00:16,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-10-14 04:00:16,517 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:00:16,517 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] [2024-10-14 04:00:16,518 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-14 04:00:16,519 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:00:16,519 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:00:16,519 INFO L85 PathProgramCache]: Analyzing trace with hash 2129284340, now seen corresponding path program 1 times [2024-10-14 04:00:16,520 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:00:16,520 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [591607091] [2024-10-14 04:00:16,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:00:16,520 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:00:16,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:00:16,738 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 04:00:16,739 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:00:16,739 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [591607091] [2024-10-14 04:00:16,740 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [591607091] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 04:00:16,740 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 04:00:16,740 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 04:00:16,741 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [575987300] [2024-10-14 04:00:16,741 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 04:00:16,743 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 04:00:16,744 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:00:16,744 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 04:00:16,745 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 04:00:16,745 INFO L87 Difference]: Start difference. First operand 202 states and 291 transitions. Second operand has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:00:16,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 04:00:16,785 INFO L93 Difference]: Finished difference Result 486 states and 743 transitions. [2024-10-14 04:00:16,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 04:00:16,785 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 0 states have call successors, (0), 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 86 [2024-10-14 04:00:16,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 04:00:16,788 INFO L225 Difference]: With dead ends: 486 [2024-10-14 04:00:16,788 INFO L226 Difference]: Without dead ends: 336 [2024-10-14 04:00:16,789 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 04:00:16,790 INFO L432 NwaCegarLoop]: 280 mSDtfsCounter, 112 mSDsluCounter, 126 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 406 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 04:00:16,790 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [112 Valid, 406 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 04:00:16,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 336 states. [2024-10-14 04:00:16,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 336 to 334. [2024-10-14 04:00:16,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 334 states, 333 states have (on average 1.5045045045045045) internal successors, (501), 333 states have internal predecessors, (501), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:00:16,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 334 states to 334 states and 501 transitions. [2024-10-14 04:00:16,809 INFO L78 Accepts]: Start accepts. Automaton has 334 states and 501 transitions. Word has length 86 [2024-10-14 04:00:16,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 04:00:16,809 INFO L471 AbstractCegarLoop]: Abstraction has 334 states and 501 transitions. [2024-10-14 04:00:16,809 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:00:16,810 INFO L276 IsEmpty]: Start isEmpty. Operand 334 states and 501 transitions. [2024-10-14 04:00:16,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2024-10-14 04:00:16,811 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:00:16,812 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] [2024-10-14 04:00:16,812 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-14 04:00:16,812 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:00:16,813 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:00:16,813 INFO L85 PathProgramCache]: Analyzing trace with hash 2096979309, now seen corresponding path program 1 times [2024-10-14 04:00:16,813 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:00:16,813 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [968834354] [2024-10-14 04:00:16,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:00:16,814 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:00:16,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:00:16,957 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 04:00:16,957 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:00:16,958 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [968834354] [2024-10-14 04:00:16,958 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [968834354] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 04:00:16,958 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 04:00:16,959 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 04:00:16,959 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [434702887] [2024-10-14 04:00:16,959 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 04:00:16,960 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 04:00:16,960 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:00:16,961 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 04:00:16,962 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 04:00:16,962 INFO L87 Difference]: Start difference. First operand 334 states and 501 transitions. Second operand has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:00:16,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 04:00:16,999 INFO L93 Difference]: Finished difference Result 866 states and 1347 transitions. [2024-10-14 04:00:16,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 04:00:17,000 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 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 [2024-10-14 04:00:17,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 04:00:17,003 INFO L225 Difference]: With dead ends: 866 [2024-10-14 04:00:17,004 INFO L226 Difference]: Without dead ends: 584 [2024-10-14 04:00:17,007 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 04:00:17,009 INFO L432 NwaCegarLoop]: 272 mSDtfsCounter, 107 mSDsluCounter, 130 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 402 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 04:00:17,011 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [107 Valid, 402 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 04:00:17,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 584 states. [2024-10-14 04:00:17,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 584 to 582. [2024-10-14 04:00:17,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 582 states, 581 states have (on average 1.5370051635111877) internal successors, (893), 581 states have internal predecessors, (893), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:00:17,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 582 states to 582 states and 893 transitions. [2024-10-14 04:00:17,042 INFO L78 Accepts]: Start accepts. Automaton has 582 states and 893 transitions. Word has length 87 [2024-10-14 04:00:17,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 04:00:17,042 INFO L471 AbstractCegarLoop]: Abstraction has 582 states and 893 transitions. [2024-10-14 04:00:17,043 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:00:17,043 INFO L276 IsEmpty]: Start isEmpty. Operand 582 states and 893 transitions. [2024-10-14 04:00:17,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2024-10-14 04:00:17,044 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:00:17,045 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] [2024-10-14 04:00:17,045 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-14 04:00:17,045 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:00:17,046 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:00:17,046 INFO L85 PathProgramCache]: Analyzing trace with hash -1649402853, now seen corresponding path program 1 times [2024-10-14 04:00:17,046 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:00:17,046 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1825075511] [2024-10-14 04:00:17,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:00:17,047 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:00:17,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:00:17,193 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 04:00:17,193 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:00:17,193 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1825075511] [2024-10-14 04:00:17,193 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1825075511] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 04:00:17,194 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 04:00:17,194 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 04:00:17,194 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1578078082] [2024-10-14 04:00:17,194 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 04:00:17,195 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 04:00:17,195 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:00:17,196 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 04:00:17,196 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 04:00:17,196 INFO L87 Difference]: Start difference. First operand 582 states and 893 transitions. Second operand has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:00:17,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 04:00:17,221 INFO L93 Difference]: Finished difference Result 1578 states and 2471 transitions. [2024-10-14 04:00:17,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 04:00:17,222 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 0 states have call successors, (0), 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 88 [2024-10-14 04:00:17,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 04:00:17,228 INFO L225 Difference]: With dead ends: 1578 [2024-10-14 04:00:17,229 INFO L226 Difference]: Without dead ends: 1048 [2024-10-14 04:00:17,231 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 04:00:17,232 INFO L432 NwaCegarLoop]: 264 mSDtfsCounter, 102 mSDsluCounter, 134 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 398 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 04:00:17,233 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [102 Valid, 398 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 04:00:17,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1048 states. [2024-10-14 04:00:17,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1048 to 1046. [2024-10-14 04:00:17,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1046 states, 1045 states have (on average 1.551196172248804) internal successors, (1621), 1045 states have internal predecessors, (1621), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:00:17,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1046 states to 1046 states and 1621 transitions. [2024-10-14 04:00:17,259 INFO L78 Accepts]: Start accepts. Automaton has 1046 states and 1621 transitions. Word has length 88 [2024-10-14 04:00:17,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 04:00:17,261 INFO L471 AbstractCegarLoop]: Abstraction has 1046 states and 1621 transitions. [2024-10-14 04:00:17,261 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:00:17,261 INFO L276 IsEmpty]: Start isEmpty. Operand 1046 states and 1621 transitions. [2024-10-14 04:00:17,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2024-10-14 04:00:17,262 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:00:17,263 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] [2024-10-14 04:00:17,263 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-14 04:00:17,263 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:00:17,263 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:00:17,263 INFO L85 PathProgramCache]: Analyzing trace with hash -2093999040, now seen corresponding path program 1 times [2024-10-14 04:00:17,264 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:00:17,264 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [251857404] [2024-10-14 04:00:17,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:00:17,264 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:00:17,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:00:17,410 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 04:00:17,412 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:00:17,412 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [251857404] [2024-10-14 04:00:17,412 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [251857404] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 04:00:17,412 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 04:00:17,413 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 04:00:17,414 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1572483093] [2024-10-14 04:00:17,414 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 04:00:17,415 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 04:00:17,415 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:00:17,416 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 04:00:17,417 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 04:00:17,418 INFO L87 Difference]: Start difference. First operand 1046 states and 1621 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) [2024-10-14 04:00:17,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 04:00:17,455 INFO L93 Difference]: Finished difference Result 2906 states and 4551 transitions. [2024-10-14 04:00:17,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 04:00:17,456 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 [2024-10-14 04:00:17,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 04:00:17,464 INFO L225 Difference]: With dead ends: 2906 [2024-10-14 04:00:17,464 INFO L226 Difference]: Without dead ends: 1912 [2024-10-14 04:00:17,465 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 04:00:17,468 INFO L432 NwaCegarLoop]: 256 mSDtfsCounter, 97 mSDsluCounter, 138 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 394 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 04:00:17,469 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [97 Valid, 394 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 04:00:17,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1912 states. [2024-10-14 04:00:17,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1912 to 1910. [2024-10-14 04:00:17,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1910 states, 1909 states have (on average 1.5531691985332634) internal successors, (2965), 1909 states have internal predecessors, (2965), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:00:17,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1910 states to 1910 states and 2965 transitions. [2024-10-14 04:00:17,513 INFO L78 Accepts]: Start accepts. Automaton has 1910 states and 2965 transitions. Word has length 89 [2024-10-14 04:00:17,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 04:00:17,515 INFO L471 AbstractCegarLoop]: Abstraction has 1910 states and 2965 transitions. [2024-10-14 04:00:17,515 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) [2024-10-14 04:00:17,515 INFO L276 IsEmpty]: Start isEmpty. Operand 1910 states and 2965 transitions. [2024-10-14 04:00:17,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-10-14 04:00:17,516 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:00:17,517 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] [2024-10-14 04:00:17,517 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-14 04:00:17,517 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:00:17,518 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:00:17,518 INFO L85 PathProgramCache]: Analyzing trace with hash 999636698, now seen corresponding path program 1 times [2024-10-14 04:00:17,518 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:00:17,518 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [302735969] [2024-10-14 04:00:17,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:00:17,519 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:00:17,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:00:17,630 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 04:00:17,630 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:00:17,630 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [302735969] [2024-10-14 04:00:17,630 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [302735969] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 04:00:17,630 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 04:00:17,630 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 04:00:17,631 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2139057880] [2024-10-14 04:00:17,631 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 04:00:17,635 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 04:00:17,636 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:00:17,636 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 04:00:17,636 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 04:00:17,637 INFO L87 Difference]: Start difference. First operand 1910 states and 2965 transitions. Second operand has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 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) [2024-10-14 04:00:17,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 04:00:17,676 INFO L93 Difference]: Finished difference Result 5370 states and 8375 transitions. [2024-10-14 04:00:17,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 04:00:17,677 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 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 [2024-10-14 04:00:17,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 04:00:17,691 INFO L225 Difference]: With dead ends: 5370 [2024-10-14 04:00:17,692 INFO L226 Difference]: Without dead ends: 3512 [2024-10-14 04:00:17,695 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 04:00:17,697 INFO L432 NwaCegarLoop]: 248 mSDtfsCounter, 92 mSDsluCounter, 142 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 390 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 04:00:17,698 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 390 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 04:00:17,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3512 states. [2024-10-14 04:00:17,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3512 to 3510. [2024-10-14 04:00:17,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3510 states, 3509 states have (on average 1.5471644343117696) internal successors, (5429), 3509 states have internal predecessors, (5429), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:00:17,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3510 states to 3510 states and 5429 transitions. [2024-10-14 04:00:17,788 INFO L78 Accepts]: Start accepts. Automaton has 3510 states and 5429 transitions. Word has length 90 [2024-10-14 04:00:17,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 04:00:17,789 INFO L471 AbstractCegarLoop]: Abstraction has 3510 states and 5429 transitions. [2024-10-14 04:00:17,789 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 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) [2024-10-14 04:00:17,789 INFO L276 IsEmpty]: Start isEmpty. Operand 3510 states and 5429 transitions. [2024-10-14 04:00:17,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-10-14 04:00:17,791 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:00:17,791 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 04:00:17,791 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-14 04:00:17,791 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:00:17,792 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:00:17,792 INFO L85 PathProgramCache]: Analyzing trace with hash 335643408, now seen corresponding path program 1 times [2024-10-14 04:00:17,792 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:00:17,793 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2076484295] [2024-10-14 04:00:17,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:00:17,793 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:00:17,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:00:17,880 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 04:00:17,881 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:00:17,881 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2076484295] [2024-10-14 04:00:17,881 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2076484295] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 04:00:17,881 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 04:00:17,882 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 04:00:17,882 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1299871824] [2024-10-14 04:00:17,882 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 04:00:17,882 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 04:00:17,883 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:00:17,883 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 04:00:17,883 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 04:00:17,884 INFO L87 Difference]: Start difference. First operand 3510 states and 5429 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) [2024-10-14 04:00:17,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 04:00:17,937 INFO L93 Difference]: Finished difference Result 9914 states and 15351 transitions. [2024-10-14 04:00:17,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 04:00:17,938 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 [2024-10-14 04:00:17,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 04:00:17,961 INFO L225 Difference]: With dead ends: 9914 [2024-10-14 04:00:17,962 INFO L226 Difference]: Without dead ends: 6456 [2024-10-14 04:00:17,970 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 04:00:17,971 INFO L432 NwaCegarLoop]: 240 mSDtfsCounter, 87 mSDsluCounter, 146 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 386 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 04:00:17,973 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [87 Valid, 386 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 04:00:17,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6456 states. [2024-10-14 04:00:18,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6456 to 6454. [2024-10-14 04:00:18,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6454 states, 6453 states have (on average 1.5355648535564854) internal successors, (9909), 6453 states have internal predecessors, (9909), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:00:18,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6454 states to 6454 states and 9909 transitions. [2024-10-14 04:00:18,161 INFO L78 Accepts]: Start accepts. Automaton has 6454 states and 9909 transitions. Word has length 91 [2024-10-14 04:00:18,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 04:00:18,161 INFO L471 AbstractCegarLoop]: Abstraction has 6454 states and 9909 transitions. [2024-10-14 04:00:18,161 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) [2024-10-14 04:00:18,161 INFO L276 IsEmpty]: Start isEmpty. Operand 6454 states and 9909 transitions. [2024-10-14 04:00:18,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-10-14 04:00:18,162 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:00:18,162 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, 1] [2024-10-14 04:00:18,162 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-14 04:00:18,162 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:00:18,163 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:00:18,163 INFO L85 PathProgramCache]: Analyzing trace with hash 426949996, now seen corresponding path program 1 times [2024-10-14 04:00:18,163 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:00:18,163 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [878556929] [2024-10-14 04:00:18,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:00:18,163 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:00:18,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:00:18,389 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 04:00:18,389 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:00:18,390 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [878556929] [2024-10-14 04:00:18,390 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [878556929] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 04:00:18,390 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 04:00:18,390 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-10-14 04:00:18,390 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [33690956] [2024-10-14 04:00:18,390 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 04:00:18,390 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-14 04:00:18,391 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:00:18,391 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-14 04:00:18,391 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-10-14 04:00:18,391 INFO L87 Difference]: Start difference. First operand 6454 states and 9909 transitions. Second operand has 9 states, 9 states have (on average 10.222222222222221) internal successors, (92), 9 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:00:19,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 04:00:19,229 INFO L93 Difference]: Finished difference Result 96082 states and 147907 transitions. [2024-10-14 04:00:19,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-14 04:00:19,230 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.222222222222221) internal successors, (92), 9 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 92 [2024-10-14 04:00:19,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 04:00:19,452 INFO L225 Difference]: With dead ends: 96082 [2024-10-14 04:00:19,452 INFO L226 Difference]: Without dead ends: 89680 [2024-10-14 04:00:19,595 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=124, Invalid=256, Unknown=0, NotChecked=0, Total=380 [2024-10-14 04:00:19,596 INFO L432 NwaCegarLoop]: 174 mSDtfsCounter, 2471 mSDsluCounter, 3751 mSDsCounter, 0 mSdLazyCounter, 225 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2471 SdHoareTripleChecker+Valid, 3925 SdHoareTripleChecker+Invalid, 228 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 225 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-14 04:00:19,596 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2471 Valid, 3925 Invalid, 228 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 225 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-14 04:00:19,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89680 states. [2024-10-14 04:00:20,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89680 to 12854. [2024-10-14 04:00:20,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12854 states, 12853 states have (on average 1.5178557535205788) internal successors, (19509), 12853 states have internal predecessors, (19509), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:00:20,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12854 states to 12854 states and 19509 transitions. [2024-10-14 04:00:20,761 INFO L78 Accepts]: Start accepts. Automaton has 12854 states and 19509 transitions. Word has length 92 [2024-10-14 04:00:20,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 04:00:20,762 INFO L471 AbstractCegarLoop]: Abstraction has 12854 states and 19509 transitions. [2024-10-14 04:00:20,767 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.222222222222221) internal successors, (92), 9 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:00:20,767 INFO L276 IsEmpty]: Start isEmpty. Operand 12854 states and 19509 transitions. [2024-10-14 04:00:20,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-10-14 04:00:20,767 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:00:20,767 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 04:00:20,768 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-14 04:00:20,768 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:00:20,768 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:00:20,768 INFO L85 PathProgramCache]: Analyzing trace with hash 1355234760, now seen corresponding path program 1 times [2024-10-14 04:00:20,769 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:00:20,769 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1205407052] [2024-10-14 04:00:20,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:00:20,769 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:00:20,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:00:20,873 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 04:00:20,873 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:00:20,873 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1205407052] [2024-10-14 04:00:20,873 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1205407052] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 04:00:20,873 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 04:00:20,873 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 04:00:20,874 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1238822772] [2024-10-14 04:00:20,874 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 04:00:20,874 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 04:00:20,874 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:00:20,875 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 04:00:20,875 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 04:00:20,875 INFO L87 Difference]: Start difference. First operand 12854 states and 19509 transitions. Second operand has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:00:20,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 04:00:20,962 INFO L93 Difference]: Finished difference Result 31868 states and 48377 transitions. [2024-10-14 04:00:20,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 04:00:20,963 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 0 states have call successors, (0), 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 94 [2024-10-14 04:00:20,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 04:00:20,992 INFO L225 Difference]: With dead ends: 31868 [2024-10-14 04:00:20,992 INFO L226 Difference]: Without dead ends: 19066 [2024-10-14 04:00:21,009 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 04:00:21,010 INFO L432 NwaCegarLoop]: 224 mSDtfsCounter, 78 mSDsluCounter, 122 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 346 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 04:00:21,010 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [78 Valid, 346 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 04:00:21,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19066 states. [2024-10-14 04:00:21,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19066 to 19064. [2024-10-14 04:00:21,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19064 states, 19063 states have (on average 1.5069506373603316) internal successors, (28727), 19063 states have internal predecessors, (28727), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:00:21,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19064 states to 19064 states and 28727 transitions. [2024-10-14 04:00:21,364 INFO L78 Accepts]: Start accepts. Automaton has 19064 states and 28727 transitions. Word has length 94 [2024-10-14 04:00:21,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 04:00:21,364 INFO L471 AbstractCegarLoop]: Abstraction has 19064 states and 28727 transitions. [2024-10-14 04:00:21,364 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:00:21,364 INFO L276 IsEmpty]: Start isEmpty. Operand 19064 states and 28727 transitions. [2024-10-14 04:00:21,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-10-14 04:00:21,365 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:00:21,365 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, 1, 1, 1] [2024-10-14 04:00:21,365 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-14 04:00:21,365 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:00:21,366 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:00:21,366 INFO L85 PathProgramCache]: Analyzing trace with hash 1376237415, now seen corresponding path program 1 times [2024-10-14 04:00:21,366 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:00:21,366 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [421748474] [2024-10-14 04:00:21,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:00:21,366 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:00:21,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:00:21,919 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 04:00:21,920 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:00:21,921 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [421748474] [2024-10-14 04:00:21,921 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [421748474] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 04:00:21,921 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 04:00:21,921 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-10-14 04:00:21,921 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1825676672] [2024-10-14 04:00:21,921 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 04:00:21,922 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-14 04:00:21,922 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:00:21,922 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-14 04:00:21,923 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-10-14 04:00:21,923 INFO L87 Difference]: Start difference. First operand 19064 states and 28727 transitions. Second operand has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 9 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:00:22,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 04:00:22,366 INFO L93 Difference]: Finished difference Result 38076 states and 57401 transitions. [2024-10-14 04:00:22,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-14 04:00:22,367 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 9 states have internal predecessors, (94), 0 states have call successors, (0), 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 94 [2024-10-14 04:00:22,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 04:00:22,395 INFO L225 Difference]: With dead ends: 38076 [2024-10-14 04:00:22,395 INFO L226 Difference]: Without dead ends: 19066 [2024-10-14 04:00:22,418 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=66, Invalid=116, Unknown=0, NotChecked=0, Total=182 [2024-10-14 04:00:22,419 INFO L432 NwaCegarLoop]: 169 mSDtfsCounter, 218 mSDsluCounter, 750 mSDsCounter, 0 mSdLazyCounter, 106 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 218 SdHoareTripleChecker+Valid, 919 SdHoareTripleChecker+Invalid, 108 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 106 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 04:00:22,420 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [218 Valid, 919 Invalid, 108 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 106 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 04:00:22,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19066 states. [2024-10-14 04:00:22,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19066 to 19064. [2024-10-14 04:00:22,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19064 states, 19063 states have (on average 1.4968787703929076) internal successors, (28535), 19063 states have internal predecessors, (28535), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:00:22,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19064 states to 19064 states and 28535 transitions. [2024-10-14 04:00:22,761 INFO L78 Accepts]: Start accepts. Automaton has 19064 states and 28535 transitions. Word has length 94 [2024-10-14 04:00:22,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 04:00:22,762 INFO L471 AbstractCegarLoop]: Abstraction has 19064 states and 28535 transitions. [2024-10-14 04:00:22,762 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 9 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:00:22,762 INFO L276 IsEmpty]: Start isEmpty. Operand 19064 states and 28535 transitions. [2024-10-14 04:00:22,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-10-14 04:00:22,763 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:00:22,764 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, 1, 1, 1, 1] [2024-10-14 04:00:22,764 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-14 04:00:22,764 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:00:22,765 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:00:22,765 INFO L85 PathProgramCache]: Analyzing trace with hash -288222367, now seen corresponding path program 1 times [2024-10-14 04:00:22,765 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:00:22,766 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1230918785] [2024-10-14 04:00:22,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:00:22,766 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:00:22,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:00:22,920 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 04:00:22,921 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:00:22,921 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1230918785] [2024-10-14 04:00:22,922 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1230918785] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 04:00:22,922 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 04:00:22,922 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-14 04:00:22,922 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [601219295] [2024-10-14 04:00:22,922 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 04:00:22,923 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 04:00:22,923 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:00:22,923 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 04:00:22,924 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-14 04:00:22,924 INFO L87 Difference]: Start difference. First operand 19064 states and 28535 transitions. Second operand has 5 states, 5 states have (on average 19.0) internal successors, (95), 4 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:00:23,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 04:00:23,108 INFO L93 Difference]: Finished difference Result 38074 states and 57016 transitions. [2024-10-14 04:00:23,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-14 04:00:23,109 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.0) internal successors, (95), 4 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 95 [2024-10-14 04:00:23,109 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 04:00:23,138 INFO L225 Difference]: With dead ends: 38074 [2024-10-14 04:00:23,139 INFO L226 Difference]: Without dead ends: 19064 [2024-10-14 04:00:23,160 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-10-14 04:00:23,161 INFO L432 NwaCegarLoop]: 109 mSDtfsCounter, 447 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 447 SdHoareTripleChecker+Valid, 129 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 04:00:23,161 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [447 Valid, 129 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 04:00:23,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19064 states. [2024-10-14 04:00:23,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19064 to 19064. [2024-10-14 04:00:23,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19064 states, 19063 states have (on average 1.4868069034254838) internal successors, (28343), 19063 states have internal predecessors, (28343), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:00:23,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19064 states to 19064 states and 28343 transitions. [2024-10-14 04:00:23,514 INFO L78 Accepts]: Start accepts. Automaton has 19064 states and 28343 transitions. Word has length 95 [2024-10-14 04:00:23,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 04:00:23,515 INFO L471 AbstractCegarLoop]: Abstraction has 19064 states and 28343 transitions. [2024-10-14 04:00:23,515 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.0) internal successors, (95), 4 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:00:23,515 INFO L276 IsEmpty]: Start isEmpty. Operand 19064 states and 28343 transitions. [2024-10-14 04:00:23,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-10-14 04:00:23,516 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:00:23,516 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, 1, 1, 1, 1] [2024-10-14 04:00:23,516 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-14 04:00:23,516 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:00:23,517 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:00:23,517 INFO L85 PathProgramCache]: Analyzing trace with hash 80048860, now seen corresponding path program 1 times [2024-10-14 04:00:23,517 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:00:23,517 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [649302943] [2024-10-14 04:00:23,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:00:23,517 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:00:23,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:00:23,636 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 04:00:23,637 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:00:23,637 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [649302943] [2024-10-14 04:00:23,637 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [649302943] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 04:00:23,637 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 04:00:23,637 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-14 04:00:23,637 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [648583025] [2024-10-14 04:00:23,637 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 04:00:23,637 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 04:00:23,637 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:00:23,638 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 04:00:23,638 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-14 04:00:23,638 INFO L87 Difference]: Start difference. First operand 19064 states and 28343 transitions. Second operand has 5 states, 5 states have (on average 19.0) internal successors, (95), 4 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:00:23,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 04:00:23,936 INFO L93 Difference]: Finished difference Result 38074 states and 56632 transitions. [2024-10-14 04:00:23,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-14 04:00:23,937 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.0) internal successors, (95), 4 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 95 [2024-10-14 04:00:23,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 04:00:23,962 INFO L225 Difference]: With dead ends: 38074 [2024-10-14 04:00:23,962 INFO L226 Difference]: Without dead ends: 19064 [2024-10-14 04:00:23,979 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-10-14 04:00:23,979 INFO L432 NwaCegarLoop]: 109 mSDtfsCounter, 418 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 418 SdHoareTripleChecker+Valid, 145 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-14 04:00:23,979 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [418 Valid, 145 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-14 04:00:23,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19064 states. [2024-10-14 04:00:24,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19064 to 19064. [2024-10-14 04:00:24,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19064 states, 19063 states have (on average 1.47673503645806) internal successors, (28151), 19063 states have internal predecessors, (28151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:00:24,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19064 states to 19064 states and 28151 transitions. [2024-10-14 04:00:24,189 INFO L78 Accepts]: Start accepts. Automaton has 19064 states and 28151 transitions. Word has length 95 [2024-10-14 04:00:24,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 04:00:24,189 INFO L471 AbstractCegarLoop]: Abstraction has 19064 states and 28151 transitions. [2024-10-14 04:00:24,189 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.0) internal successors, (95), 4 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:00:24,189 INFO L276 IsEmpty]: Start isEmpty. Operand 19064 states and 28151 transitions. [2024-10-14 04:00:24,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-10-14 04:00:24,190 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:00:24,190 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, 1, 1, 1, 1] [2024-10-14 04:00:24,190 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-14 04:00:24,190 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:00:24,190 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:00:24,191 INFO L85 PathProgramCache]: Analyzing trace with hash 208134167, now seen corresponding path program 1 times [2024-10-14 04:00:24,191 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:00:24,191 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1229780191] [2024-10-14 04:00:24,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:00:24,191 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:00:24,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:00:24,447 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 04:00:24,447 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:00:24,447 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1229780191] [2024-10-14 04:00:24,447 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1229780191] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 04:00:24,447 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 04:00:24,447 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-14 04:00:24,448 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [252494783] [2024-10-14 04:00:24,448 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 04:00:24,448 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 04:00:24,448 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:00:24,449 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 04:00:24,449 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-14 04:00:24,449 INFO L87 Difference]: Start difference. First operand 19064 states and 28151 transitions. Second operand has 5 states, 5 states have (on average 19.0) internal successors, (95), 4 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:00:24,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 04:00:24,613 INFO L93 Difference]: Finished difference Result 38074 states and 56248 transitions. [2024-10-14 04:00:24,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-14 04:00:24,614 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.0) internal successors, (95), 4 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 95 [2024-10-14 04:00:24,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 04:00:24,639 INFO L225 Difference]: With dead ends: 38074 [2024-10-14 04:00:24,640 INFO L226 Difference]: Without dead ends: 19064 [2024-10-14 04:00:24,656 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-10-14 04:00:24,657 INFO L432 NwaCegarLoop]: 109 mSDtfsCounter, 389 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 389 SdHoareTripleChecker+Valid, 161 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 04:00:24,658 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [389 Valid, 161 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 04:00:24,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19064 states. [2024-10-14 04:00:24,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19064 to 19064. [2024-10-14 04:00:25,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19064 states, 19063 states have (on average 1.4666631694906362) internal successors, (27959), 19063 states have internal predecessors, (27959), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:00:25,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19064 states to 19064 states and 27959 transitions. [2024-10-14 04:00:25,046 INFO L78 Accepts]: Start accepts. Automaton has 19064 states and 27959 transitions. Word has length 95 [2024-10-14 04:00:25,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 04:00:25,046 INFO L471 AbstractCegarLoop]: Abstraction has 19064 states and 27959 transitions. [2024-10-14 04:00:25,047 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.0) internal successors, (95), 4 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:00:25,047 INFO L276 IsEmpty]: Start isEmpty. Operand 19064 states and 27959 transitions. [2024-10-14 04:00:25,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-10-14 04:00:25,048 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:00:25,048 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, 1, 1, 1, 1] [2024-10-14 04:00:25,048 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-14 04:00:25,048 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:00:25,049 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:00:25,049 INFO L85 PathProgramCache]: Analyzing trace with hash -321156334, now seen corresponding path program 1 times [2024-10-14 04:00:25,049 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:00:25,049 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1472815873] [2024-10-14 04:00:25,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:00:25,050 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:00:25,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:00:25,194 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 04:00:25,195 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:00:25,195 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1472815873] [2024-10-14 04:00:25,195 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1472815873] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 04:00:25,195 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 04:00:25,195 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-14 04:00:25,195 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [619379707] [2024-10-14 04:00:25,196 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 04:00:25,196 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 04:00:25,196 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:00:25,197 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 04:00:25,197 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-14 04:00:25,197 INFO L87 Difference]: Start difference. First operand 19064 states and 27959 transitions. Second operand has 5 states, 5 states have (on average 19.0) internal successors, (95), 4 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:00:25,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 04:00:25,380 INFO L93 Difference]: Finished difference Result 38074 states and 55864 transitions. [2024-10-14 04:00:25,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-14 04:00:25,381 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.0) internal successors, (95), 4 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 95 [2024-10-14 04:00:25,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 04:00:25,404 INFO L225 Difference]: With dead ends: 38074 [2024-10-14 04:00:25,404 INFO L226 Difference]: Without dead ends: 19064 [2024-10-14 04:00:25,425 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-10-14 04:00:25,426 INFO L432 NwaCegarLoop]: 109 mSDtfsCounter, 425 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 425 SdHoareTripleChecker+Valid, 137 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 04:00:25,427 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [425 Valid, 137 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 04:00:25,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19064 states. [2024-10-14 04:00:25,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19064 to 19064. [2024-10-14 04:00:25,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19064 states, 19063 states have (on average 1.4565913025232125) internal successors, (27767), 19063 states have internal predecessors, (27767), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:00:25,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19064 states to 19064 states and 27767 transitions. [2024-10-14 04:00:25,826 INFO L78 Accepts]: Start accepts. Automaton has 19064 states and 27767 transitions. Word has length 95 [2024-10-14 04:00:25,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 04:00:25,826 INFO L471 AbstractCegarLoop]: Abstraction has 19064 states and 27767 transitions. [2024-10-14 04:00:25,826 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.0) internal successors, (95), 4 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:00:25,827 INFO L276 IsEmpty]: Start isEmpty. Operand 19064 states and 27767 transitions. [2024-10-14 04:00:25,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-10-14 04:00:25,827 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:00:25,827 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, 1, 1, 1, 1] [2024-10-14 04:00:25,828 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-10-14 04:00:25,828 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:00:25,828 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:00:25,828 INFO L85 PathProgramCache]: Analyzing trace with hash -1084020041, now seen corresponding path program 1 times [2024-10-14 04:00:25,828 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:00:25,829 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1735506779] [2024-10-14 04:00:25,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:00:25,829 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:00:25,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:00:25,932 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 04:00:25,932 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:00:25,932 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1735506779] [2024-10-14 04:00:25,932 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1735506779] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 04:00:25,933 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 04:00:25,933 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-14 04:00:25,933 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [963851520] [2024-10-14 04:00:25,933 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 04:00:25,933 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 04:00:25,933 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:00:25,934 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 04:00:25,934 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-14 04:00:25,934 INFO L87 Difference]: Start difference. First operand 19064 states and 27767 transitions. Second operand has 5 states, 5 states have (on average 19.0) internal successors, (95), 4 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:00:26,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 04:00:26,092 INFO L93 Difference]: Finished difference Result 38074 states and 55480 transitions. [2024-10-14 04:00:26,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-14 04:00:26,092 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.0) internal successors, (95), 4 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 95 [2024-10-14 04:00:26,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 04:00:26,117 INFO L225 Difference]: With dead ends: 38074 [2024-10-14 04:00:26,117 INFO L226 Difference]: Without dead ends: 19064 [2024-10-14 04:00:26,314 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-10-14 04:00:26,315 INFO L432 NwaCegarLoop]: 109 mSDtfsCounter, 448 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 448 SdHoareTripleChecker+Valid, 121 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 04:00:26,315 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [448 Valid, 121 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 04:00:26,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19064 states. [2024-10-14 04:00:26,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19064 to 19064. [2024-10-14 04:00:26,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19064 states, 19063 states have (on average 1.4465194355557887) internal successors, (27575), 19063 states have internal predecessors, (27575), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:00:26,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19064 states to 19064 states and 27575 transitions. [2024-10-14 04:00:26,527 INFO L78 Accepts]: Start accepts. Automaton has 19064 states and 27575 transitions. Word has length 95 [2024-10-14 04:00:26,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 04:00:26,527 INFO L471 AbstractCegarLoop]: Abstraction has 19064 states and 27575 transitions. [2024-10-14 04:00:26,527 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.0) internal successors, (95), 4 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:00:26,527 INFO L276 IsEmpty]: Start isEmpty. Operand 19064 states and 27575 transitions. [2024-10-14 04:00:26,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-10-14 04:00:26,528 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:00:26,528 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, 1, 1, 1, 1] [2024-10-14 04:00:26,528 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-10-14 04:00:26,528 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:00:26,528 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:00:26,529 INFO L85 PathProgramCache]: Analyzing trace with hash 1469530140, now seen corresponding path program 1 times [2024-10-14 04:00:26,529 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:00:26,529 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1002199893] [2024-10-14 04:00:26,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:00:26,529 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:00:26,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:00:26,905 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 04:00:26,905 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:00:26,905 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1002199893] [2024-10-14 04:00:26,906 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1002199893] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 04:00:26,906 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 04:00:26,906 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 04:00:26,906 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1704791450] [2024-10-14 04:00:26,906 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 04:00:26,906 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 04:00:26,909 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:00:26,909 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 04:00:26,909 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-14 04:00:26,909 INFO L87 Difference]: Start difference. First operand 19064 states and 27575 transitions. Second operand has 5 states, 5 states have (on average 19.0) internal successors, (95), 5 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:00:26,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 04:00:26,979 INFO L93 Difference]: Finished difference Result 19578 states and 28344 transitions. [2024-10-14 04:00:26,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-14 04:00:26,980 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.0) internal successors, (95), 5 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 95 [2024-10-14 04:00:26,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 04:00:27,005 INFO L225 Difference]: With dead ends: 19578 [2024-10-14 04:00:27,005 INFO L226 Difference]: Without dead ends: 19576 [2024-10-14 04:00:27,014 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-14 04:00:27,014 INFO L432 NwaCegarLoop]: 170 mSDtfsCounter, 0 mSDsluCounter, 501 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 671 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 04:00:27,015 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 671 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 04:00:27,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19576 states. [2024-10-14 04:00:27,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19576 to 19576. [2024-10-14 04:00:27,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19576 states, 19575 states have (on average 1.4315708812260537) internal successors, (28023), 19575 states have internal predecessors, (28023), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:00:27,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19576 states to 19576 states and 28023 transitions. [2024-10-14 04:00:27,360 INFO L78 Accepts]: Start accepts. Automaton has 19576 states and 28023 transitions. Word has length 95 [2024-10-14 04:00:27,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 04:00:27,360 INFO L471 AbstractCegarLoop]: Abstraction has 19576 states and 28023 transitions. [2024-10-14 04:00:27,361 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.0) internal successors, (95), 5 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:00:27,361 INFO L276 IsEmpty]: Start isEmpty. Operand 19576 states and 28023 transitions. [2024-10-14 04:00:27,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-10-14 04:00:27,369 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:00:27,369 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 04:00:27,369 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-10-14 04:00:27,369 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:00:27,370 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:00:27,370 INFO L85 PathProgramCache]: Analyzing trace with hash -2086990711, now seen corresponding path program 1 times [2024-10-14 04:00:27,370 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:00:27,370 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1111819834] [2024-10-14 04:00:27,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:00:27,371 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:00:27,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:00:27,676 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-14 04:00:27,676 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:00:27,676 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1111819834] [2024-10-14 04:00:27,677 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1111819834] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 04:00:27,677 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 04:00:27,677 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-10-14 04:00:27,677 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1531536489] [2024-10-14 04:00:27,677 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 04:00:27,678 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-14 04:00:27,678 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:00:27,678 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-14 04:00:27,678 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-10-14 04:00:27,679 INFO L87 Difference]: Start difference. First operand 19576 states and 28023 transitions. Second operand has 9 states, 9 states have (on average 14.222222222222221) internal successors, (128), 9 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:00:28,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 04:00:28,430 INFO L93 Difference]: Finished difference Result 153608 states and 219999 transitions. [2024-10-14 04:00:28,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-14 04:00:28,431 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 14.222222222222221) internal successors, (128), 9 states have internal predecessors, (128), 0 states have call successors, (0), 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 129 [2024-10-14 04:00:28,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 04:00:28,589 INFO L225 Difference]: With dead ends: 153608 [2024-10-14 04:00:28,589 INFO L226 Difference]: Without dead ends: 140294 [2024-10-14 04:00:28,615 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2024-10-14 04:00:28,615 INFO L432 NwaCegarLoop]: 290 mSDtfsCounter, 2073 mSDsluCounter, 1651 mSDsCounter, 0 mSdLazyCounter, 150 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2073 SdHoareTripleChecker+Valid, 1941 SdHoareTripleChecker+Invalid, 150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 150 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 04:00:28,616 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2073 Valid, 1941 Invalid, 150 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 150 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 04:00:28,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140294 states. [2024-10-14 04:00:29,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140294 to 36024. [2024-10-14 04:00:29,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36024 states, 36023 states have (on average 1.4272825694695055) internal successors, (51415), 36023 states have internal predecessors, (51415), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:00:29,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36024 states to 36024 states and 51415 transitions. [2024-10-14 04:00:29,869 INFO L78 Accepts]: Start accepts. Automaton has 36024 states and 51415 transitions. Word has length 129 [2024-10-14 04:00:29,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 04:00:29,870 INFO L471 AbstractCegarLoop]: Abstraction has 36024 states and 51415 transitions. [2024-10-14 04:00:29,870 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 14.222222222222221) internal successors, (128), 9 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:00:29,870 INFO L276 IsEmpty]: Start isEmpty. Operand 36024 states and 51415 transitions. [2024-10-14 04:00:29,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-10-14 04:00:29,880 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:00:29,880 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 04:00:29,880 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-10-14 04:00:29,880 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:00:29,881 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:00:29,881 INFO L85 PathProgramCache]: Analyzing trace with hash -1020070641, now seen corresponding path program 1 times [2024-10-14 04:00:29,881 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:00:29,882 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1818982665] [2024-10-14 04:00:29,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:00:29,882 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:00:29,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:00:30,103 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-14 04:00:30,103 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:00:30,103 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1818982665] [2024-10-14 04:00:30,104 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1818982665] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 04:00:30,104 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 04:00:30,104 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-10-14 04:00:30,104 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [460463606] [2024-10-14 04:00:30,104 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 04:00:30,104 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-14 04:00:30,105 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:00:30,105 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-14 04:00:30,105 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-10-14 04:00:30,105 INFO L87 Difference]: Start difference. First operand 36024 states and 51415 transitions. Second operand has 9 states, 9 states have (on average 14.11111111111111) internal successors, (127), 9 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:00:30,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 04:00:30,994 INFO L93 Difference]: Finished difference Result 173128 states and 247839 transitions. [2024-10-14 04:00:30,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-14 04:00:30,995 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 14.11111111111111) internal successors, (127), 9 states have internal predecessors, (127), 0 states have call successors, (0), 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 129 [2024-10-14 04:00:30,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 04:00:31,166 INFO L225 Difference]: With dead ends: 173128 [2024-10-14 04:00:31,166 INFO L226 Difference]: Without dead ends: 153606 [2024-10-14 04:00:31,195 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2024-10-14 04:00:31,195 INFO L432 NwaCegarLoop]: 289 mSDtfsCounter, 2072 mSDsluCounter, 1611 mSDsCounter, 0 mSdLazyCounter, 175 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2072 SdHoareTripleChecker+Valid, 1900 SdHoareTripleChecker+Invalid, 175 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 175 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 04:00:31,195 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2072 Valid, 1900 Invalid, 175 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 175 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 04:00:31,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153606 states. [2024-10-14 04:00:32,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153606 to 62200. [2024-10-14 04:00:32,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62200 states, 62199 states have (on average 1.4244441228958664) internal successors, (88599), 62199 states have internal predecessors, (88599), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:00:32,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62200 states to 62200 states and 88599 transitions. [2024-10-14 04:00:32,470 INFO L78 Accepts]: Start accepts. Automaton has 62200 states and 88599 transitions. Word has length 129 [2024-10-14 04:00:32,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 04:00:32,470 INFO L471 AbstractCegarLoop]: Abstraction has 62200 states and 88599 transitions. [2024-10-14 04:00:32,470 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 14.11111111111111) internal successors, (127), 9 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:00:32,470 INFO L276 IsEmpty]: Start isEmpty. Operand 62200 states and 88599 transitions. [2024-10-14 04:00:32,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-10-14 04:00:32,481 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:00:32,481 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 04:00:32,481 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-10-14 04:00:32,482 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:00:32,482 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:00:32,482 INFO L85 PathProgramCache]: Analyzing trace with hash 78062119, now seen corresponding path program 1 times [2024-10-14 04:00:32,482 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:00:32,482 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1632167548] [2024-10-14 04:00:32,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:00:32,483 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:00:32,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:00:32,713 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-14 04:00:32,713 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:00:32,713 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1632167548] [2024-10-14 04:00:32,713 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1632167548] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 04:00:32,714 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 04:00:32,714 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-10-14 04:00:32,714 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1736770542] [2024-10-14 04:00:32,714 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 04:00:32,714 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-14 04:00:32,715 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:00:32,715 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-14 04:00:32,716 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-10-14 04:00:32,716 INFO L87 Difference]: Start difference. First operand 62200 states and 88599 transitions. Second operand has 9 states, 9 states have (on average 13.666666666666666) internal successors, (123), 9 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:00:33,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 04:00:33,663 INFO L93 Difference]: Finished difference Result 192648 states and 275615 transitions. [2024-10-14 04:00:33,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-14 04:00:33,664 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 13.666666666666666) internal successors, (123), 9 states have internal predecessors, (123), 0 states have call successors, (0), 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 129 [2024-10-14 04:00:33,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 04:00:33,865 INFO L225 Difference]: With dead ends: 192648 [2024-10-14 04:00:33,866 INFO L226 Difference]: Without dead ends: 173126 [2024-10-14 04:00:33,926 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2024-10-14 04:00:33,926 INFO L432 NwaCegarLoop]: 287 mSDtfsCounter, 2170 mSDsluCounter, 1769 mSDsCounter, 0 mSdLazyCounter, 161 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2170 SdHoareTripleChecker+Valid, 2056 SdHoareTripleChecker+Invalid, 161 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 161 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-10-14 04:00:33,927 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2170 Valid, 2056 Invalid, 161 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 161 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-10-14 04:00:34,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173126 states. [2024-10-14 04:00:35,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173126 to 81720. [2024-10-14 04:00:35,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81720 states, 81719 states have (on average 1.4240874215298767) internal successors, (116375), 81719 states have internal predecessors, (116375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:00:35,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81720 states to 81720 states and 116375 transitions. [2024-10-14 04:00:35,687 INFO L78 Accepts]: Start accepts. Automaton has 81720 states and 116375 transitions. Word has length 129 [2024-10-14 04:00:35,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 04:00:35,687 INFO L471 AbstractCegarLoop]: Abstraction has 81720 states and 116375 transitions. [2024-10-14 04:00:35,687 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 13.666666666666666) internal successors, (123), 9 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:00:35,687 INFO L276 IsEmpty]: Start isEmpty. Operand 81720 states and 116375 transitions. [2024-10-14 04:00:35,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-10-14 04:00:35,699 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:00:35,699 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 04:00:35,699 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-10-14 04:00:35,700 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:00:35,700 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:00:35,700 INFO L85 PathProgramCache]: Analyzing trace with hash -1075883987, now seen corresponding path program 1 times [2024-10-14 04:00:35,700 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:00:35,701 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2100533414] [2024-10-14 04:00:35,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:00:35,701 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:00:35,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:00:36,048 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-10-14 04:00:36,048 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:00:36,048 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2100533414] [2024-10-14 04:00:36,048 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2100533414] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 04:00:36,048 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 04:00:36,049 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-10-14 04:00:36,049 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [698953026] [2024-10-14 04:00:36,049 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 04:00:36,049 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-14 04:00:36,050 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:00:36,050 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-14 04:00:36,050 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-10-14 04:00:36,051 INFO L87 Difference]: Start difference. First operand 81720 states and 116375 transitions. Second operand has 9 states, 9 states have (on average 13.555555555555555) internal successors, (122), 9 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:00:36,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 04:00:36,859 INFO L93 Difference]: Finished difference Result 212168 states and 303391 transitions. [2024-10-14 04:00:36,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-14 04:00:36,860 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 13.555555555555555) internal successors, (122), 9 states have internal predecessors, (122), 0 states have call successors, (0), 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 129 [2024-10-14 04:00:36,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 04:00:37,688 INFO L225 Difference]: With dead ends: 212168 [2024-10-14 04:00:37,689 INFO L226 Difference]: Without dead ends: 192646 [2024-10-14 04:00:37,730 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2024-10-14 04:00:37,731 INFO L432 NwaCegarLoop]: 287 mSDtfsCounter, 1999 mSDsluCounter, 1840 mSDsCounter, 0 mSdLazyCounter, 195 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1999 SdHoareTripleChecker+Valid, 2127 SdHoareTripleChecker+Invalid, 195 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 195 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 04:00:37,731 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1999 Valid, 2127 Invalid, 195 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 195 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 04:00:37,839 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 192646 states. [2024-10-14 04:00:39,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 192646 to 101240. [2024-10-14 04:00:39,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101240 states, 101239 states have (on average 1.4238682721085747) internal successors, (144151), 101239 states have internal predecessors, (144151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:00:39,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101240 states to 101240 states and 144151 transitions. [2024-10-14 04:00:39,419 INFO L78 Accepts]: Start accepts. Automaton has 101240 states and 144151 transitions. Word has length 129 [2024-10-14 04:00:39,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 04:00:39,419 INFO L471 AbstractCegarLoop]: Abstraction has 101240 states and 144151 transitions. [2024-10-14 04:00:39,419 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 13.555555555555555) internal successors, (122), 9 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:00:39,419 INFO L276 IsEmpty]: Start isEmpty. Operand 101240 states and 144151 transitions. [2024-10-14 04:00:39,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-10-14 04:00:39,429 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:00:39,430 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 04:00:39,430 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-10-14 04:00:39,430 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:00:39,430 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:00:39,430 INFO L85 PathProgramCache]: Analyzing trace with hash -779838559, now seen corresponding path program 1 times [2024-10-14 04:00:39,431 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:00:39,431 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1536645719] [2024-10-14 04:00:39,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:00:39,431 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:00:39,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:00:39,700 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-10-14 04:00:39,700 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:00:39,700 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1536645719] [2024-10-14 04:00:39,701 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1536645719] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 04:00:39,701 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 04:00:39,701 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-10-14 04:00:39,702 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [376904294] [2024-10-14 04:00:39,702 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 04:00:39,702 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-14 04:00:39,702 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:00:39,703 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-14 04:00:39,703 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-10-14 04:00:39,704 INFO L87 Difference]: Start difference. First operand 101240 states and 144151 transitions. Second operand has 9 states, 9 states have (on average 13.777777777777779) internal successors, (124), 9 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:00:40,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 04:00:40,837 INFO L93 Difference]: Finished difference Result 231688 states and 331167 transitions. [2024-10-14 04:00:40,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-14 04:00:40,837 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 13.777777777777779) internal successors, (124), 9 states have internal predecessors, (124), 0 states have call successors, (0), 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 129 [2024-10-14 04:00:40,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 04:00:41,095 INFO L225 Difference]: With dead ends: 231688 [2024-10-14 04:00:41,095 INFO L226 Difference]: Without dead ends: 212166 [2024-10-14 04:00:41,167 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2024-10-14 04:00:41,168 INFO L432 NwaCegarLoop]: 287 mSDtfsCounter, 1746 mSDsluCounter, 1987 mSDsCounter, 0 mSdLazyCounter, 175 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1746 SdHoareTripleChecker+Valid, 2274 SdHoareTripleChecker+Invalid, 175 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 175 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-14 04:00:41,168 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1746 Valid, 2274 Invalid, 175 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 175 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-14 04:00:41,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 212166 states. [2024-10-14 04:00:43,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 212166 to 120760. [2024-10-14 04:00:43,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120760 states, 120759 states have (on average 1.4237199711822721) internal successors, (171927), 120759 states have internal predecessors, (171927), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:00:43,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120760 states to 120760 states and 171927 transitions. [2024-10-14 04:00:43,845 INFO L78 Accepts]: Start accepts. Automaton has 120760 states and 171927 transitions. Word has length 129 [2024-10-14 04:00:43,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 04:00:43,846 INFO L471 AbstractCegarLoop]: Abstraction has 120760 states and 171927 transitions. [2024-10-14 04:00:43,846 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 13.777777777777779) internal successors, (124), 9 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:00:43,846 INFO L276 IsEmpty]: Start isEmpty. Operand 120760 states and 171927 transitions. [2024-10-14 04:00:43,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-10-14 04:00:43,854 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:00:43,854 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 04:00:43,854 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-10-14 04:00:43,854 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:00:43,854 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:00:43,855 INFO L85 PathProgramCache]: Analyzing trace with hash 648658075, now seen corresponding path program 1 times [2024-10-14 04:00:43,855 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:00:43,855 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [7631151] [2024-10-14 04:00:43,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:00:43,855 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:00:43,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:00:44,049 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-10-14 04:00:44,049 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:00:44,049 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [7631151] [2024-10-14 04:00:44,049 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [7631151] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 04:00:44,049 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 04:00:44,050 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-10-14 04:00:44,050 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1721455925] [2024-10-14 04:00:44,050 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 04:00:44,050 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-14 04:00:44,051 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:00:44,051 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-14 04:00:44,051 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-10-14 04:00:44,051 INFO L87 Difference]: Start difference. First operand 120760 states and 171927 transitions. Second operand has 9 states, 9 states have (on average 13.88888888888889) internal successors, (125), 9 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:00:45,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 04:00:45,502 INFO L93 Difference]: Finished difference Result 251208 states and 358943 transitions. [2024-10-14 04:00:45,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-14 04:00:45,509 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 13.88888888888889) internal successors, (125), 9 states have internal predecessors, (125), 0 states have call successors, (0), 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 129 [2024-10-14 04:00:45,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 04:00:45,869 INFO L225 Difference]: With dead ends: 251208 [2024-10-14 04:00:45,869 INFO L226 Difference]: Without dead ends: 231686 [2024-10-14 04:00:45,929 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2024-10-14 04:00:45,929 INFO L432 NwaCegarLoop]: 287 mSDtfsCounter, 1730 mSDsluCounter, 2018 mSDsCounter, 0 mSdLazyCounter, 176 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1730 SdHoareTripleChecker+Valid, 2305 SdHoareTripleChecker+Invalid, 176 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 176 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 04:00:45,930 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1730 Valid, 2305 Invalid, 176 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 176 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 04:00:46,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 231686 states. [2024-10-14 04:00:47,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 231686 to 140280. [2024-10-14 04:00:48,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 140280 states, 140279 states have (on average 1.4236129427783204) internal successors, (199703), 140279 states have internal predecessors, (199703), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:00:48,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140280 states to 140280 states and 199703 transitions. [2024-10-14 04:00:48,745 INFO L78 Accepts]: Start accepts. Automaton has 140280 states and 199703 transitions. Word has length 129 [2024-10-14 04:00:48,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 04:00:48,745 INFO L471 AbstractCegarLoop]: Abstraction has 140280 states and 199703 transitions. [2024-10-14 04:00:48,745 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 13.88888888888889) internal successors, (125), 9 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:00:48,746 INFO L276 IsEmpty]: Start isEmpty. Operand 140280 states and 199703 transitions. [2024-10-14 04:00:48,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-10-14 04:00:48,757 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:00:48,757 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 04:00:48,757 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-10-14 04:00:48,757 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:00:48,758 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:00:48,758 INFO L85 PathProgramCache]: Analyzing trace with hash -1670871787, now seen corresponding path program 1 times [2024-10-14 04:00:48,758 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:00:48,758 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1297391208] [2024-10-14 04:00:48,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:00:48,758 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:00:48,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:00:49,015 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-10-14 04:00:49,016 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:00:49,016 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1297391208] [2024-10-14 04:00:49,016 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1297391208] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 04:00:49,016 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 04:00:49,016 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-10-14 04:00:49,017 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1083879629] [2024-10-14 04:00:49,017 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 04:00:49,017 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-14 04:00:49,017 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:00:49,018 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-14 04:00:49,018 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-10-14 04:00:49,018 INFO L87 Difference]: Start difference. First operand 140280 states and 199703 transitions. Second operand has 9 states, 9 states have (on average 14.0) internal successors, (126), 9 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:00:49,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 04:00:49,970 INFO L93 Difference]: Finished difference Result 270728 states and 386719 transitions. [2024-10-14 04:00:49,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-14 04:00:49,971 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 14.0) internal successors, (126), 9 states have internal predecessors, (126), 0 states have call successors, (0), 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 129 [2024-10-14 04:00:49,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 04:00:50,318 INFO L225 Difference]: With dead ends: 270728 [2024-10-14 04:00:50,318 INFO L226 Difference]: Without dead ends: 251206 [2024-10-14 04:00:50,426 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2024-10-14 04:00:50,426 INFO L432 NwaCegarLoop]: 286 mSDtfsCounter, 1826 mSDsluCounter, 2029 mSDsCounter, 0 mSdLazyCounter, 216 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1826 SdHoareTripleChecker+Valid, 2315 SdHoareTripleChecker+Invalid, 216 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 216 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 04:00:50,427 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1826 Valid, 2315 Invalid, 216 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 216 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 04:00:51,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 251206 states. [2024-10-14 04:00:53,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 251206 to 159800. [2024-10-14 04:00:53,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 159800 states, 159799 states have (on average 1.4235320621530798) internal successors, (227479), 159799 states have internal predecessors, (227479), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:00:54,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159800 states to 159800 states and 227479 transitions. [2024-10-14 04:00:54,054 INFO L78 Accepts]: Start accepts. Automaton has 159800 states and 227479 transitions. Word has length 129 [2024-10-14 04:00:54,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 04:00:54,055 INFO L471 AbstractCegarLoop]: Abstraction has 159800 states and 227479 transitions. [2024-10-14 04:00:54,055 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 14.0) internal successors, (126), 9 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:00:54,055 INFO L276 IsEmpty]: Start isEmpty. Operand 159800 states and 227479 transitions. [2024-10-14 04:00:54,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2024-10-14 04:00:54,067 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:00:54,067 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 04:00:54,067 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-10-14 04:00:54,067 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:00:54,068 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:00:54,068 INFO L85 PathProgramCache]: Analyzing trace with hash 655202412, now seen corresponding path program 1 times [2024-10-14 04:00:54,068 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:00:54,068 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [328997675] [2024-10-14 04:00:54,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:00:54,069 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:00:54,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:00:54,248 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 3 proven. 15 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-14 04:00:54,249 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:00:54,249 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [328997675] [2024-10-14 04:00:54,249 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [328997675] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 04:00:54,249 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1866614739] [2024-10-14 04:00:54,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:00:54,250 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 04:00:54,250 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 04:00:54,252 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 04:00:54,253 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-14 04:00:54,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:00:54,452 INFO L255 TraceCheckSpWp]: Trace formula consists of 542 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-10-14 04:00:54,461 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 04:00:55,199 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 10 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 04:00:55,199 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 04:00:56,428 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 10 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 04:00:56,428 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1866614739] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-14 04:00:56,429 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-14 04:00:56,429 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 8, 8] total 18 [2024-10-14 04:00:56,429 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1129989341] [2024-10-14 04:00:56,430 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-14 04:00:56,430 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-10-14 04:00:56,430 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:00:56,431 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-10-14 04:00:56,431 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=258, Unknown=0, NotChecked=0, Total=306 [2024-10-14 04:00:56,432 INFO L87 Difference]: Start difference. First operand 159800 states and 227479 transitions. Second operand has 18 states, 18 states have (on average 20.38888888888889) internal successors, (367), 18 states have internal predecessors, (367), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:01:01,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 04:01:01,705 INFO L93 Difference]: Finished difference Result 962602 states and 1371936 transitions. [2024-10-14 04:01:01,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2024-10-14 04:01:01,706 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 20.38888888888889) internal successors, (367), 18 states have internal predecessors, (367), 0 states have call successors, (0), 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 130 [2024-10-14 04:01:01,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 04:01:03,096 INFO L225 Difference]: With dead ends: 962602 [2024-10-14 04:01:03,096 INFO L226 Difference]: Without dead ends: 802856 [2024-10-14 04:01:03,383 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 309 GetRequests, 246 SyntacticMatches, 0 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1173 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=807, Invalid=3353, Unknown=0, NotChecked=0, Total=4160 [2024-10-14 04:01:03,384 INFO L432 NwaCegarLoop]: 257 mSDtfsCounter, 3103 mSDsluCounter, 1874 mSDsCounter, 0 mSdLazyCounter, 2135 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3103 SdHoareTripleChecker+Valid, 2131 SdHoareTripleChecker+Invalid, 2152 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 2135 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-10-14 04:01:03,384 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3103 Valid, 2131 Invalid, 2152 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 2135 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-10-14 04:01:04,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 802856 states.