./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.8.1.ufo.BOUNDED-16.pals.c.v+cfa-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4a390ef5 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.8.1.ufo.BOUNDED-16.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 48c664e7cdd48f925f0c21709ed46b226b726e91974047076ebfec19f49c351c --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4a390ef-m [2024-10-24 01:53:22,680 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-24 01:53:22,730 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-24 01:53:22,733 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-24 01:53:22,733 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-24 01:53:22,757 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-24 01:53:22,758 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-24 01:53:22,758 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-24 01:53:22,758 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-24 01:53:22,759 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-24 01:53:22,760 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-24 01:53:22,760 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-24 01:53:22,760 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-24 01:53:22,760 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-24 01:53:22,761 INFO L153 SettingsManager]: * Use SBE=true [2024-10-24 01:53:22,761 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-24 01:53:22,762 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-24 01:53:22,763 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-24 01:53:22,763 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-24 01:53:22,763 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-24 01:53:22,763 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-24 01:53:22,766 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-24 01:53:22,766 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-24 01:53:22,766 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-24 01:53:22,766 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-24 01:53:22,766 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-24 01:53:22,767 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-24 01:53:22,767 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-24 01:53:22,767 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-24 01:53:22,767 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-24 01:53:22,767 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-24 01:53:22,768 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-24 01:53:22,768 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 01:53:22,768 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-24 01:53:22,768 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-24 01:53:22,768 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-24 01:53:22,768 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-24 01:53:22,769 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-24 01:53:22,769 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-24 01:53:22,769 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-24 01:53:22,769 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-24 01:53:22,771 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-24 01:53:22,777 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 48c664e7cdd48f925f0c21709ed46b226b726e91974047076ebfec19f49c351c [2024-10-24 01:53:22,968 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-24 01:53:22,990 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-24 01:53:22,992 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-24 01:53:22,993 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-24 01:53:22,993 INFO L274 PluginConnector]: CDTParser initialized [2024-10-24 01:53:22,994 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.8.1.ufo.BOUNDED-16.pals.c.v+cfa-reducer.c [2024-10-24 01:53:24,145 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-24 01:53:24,329 INFO L384 CDTParser]: Found 1 translation units. [2024-10-24 01:53:24,329 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.8.1.ufo.BOUNDED-16.pals.c.v+cfa-reducer.c [2024-10-24 01:53:24,338 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/db42d0e1a/6a6dd43a3cb542c68ac4df61215cdb93/FLAGff6ef9256 [2024-10-24 01:53:24,719 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/db42d0e1a/6a6dd43a3cb542c68ac4df61215cdb93 [2024-10-24 01:53:24,721 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-24 01:53:24,722 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-24 01:53:24,723 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-24 01:53:24,723 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-24 01:53:24,726 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-24 01:53:24,727 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 01:53:24" (1/1) ... [2024-10-24 01:53:24,727 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6d1f9a55 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:53:24, skipping insertion in model container [2024-10-24 01:53:24,728 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 01:53:24" (1/1) ... [2024-10-24 01:53:24,765 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-24 01:53:24,949 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.8.1.ufo.BOUNDED-16.pals.c.v+cfa-reducer.c[8604,8617] [2024-10-24 01:53:24,984 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 01:53:24,996 INFO L200 MainTranslator]: Completed pre-run [2024-10-24 01:53:25,042 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.8.1.ufo.BOUNDED-16.pals.c.v+cfa-reducer.c[8604,8617] [2024-10-24 01:53:25,058 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 01:53:25,098 INFO L204 MainTranslator]: Completed translation [2024-10-24 01:53:25,099 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:53:25 WrapperNode [2024-10-24 01:53:25,099 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-24 01:53:25,100 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-24 01:53:25,100 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-24 01:53:25,100 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-24 01:53:25,104 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:53:25" (1/1) ... [2024-10-24 01:53:25,128 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:53:25" (1/1) ... [2024-10-24 01:53:25,162 INFO L138 Inliner]: procedures = 27, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 721 [2024-10-24 01:53:25,162 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-24 01:53:25,163 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-24 01:53:25,163 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-24 01:53:25,163 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-24 01:53:25,171 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:53:25" (1/1) ... [2024-10-24 01:53:25,171 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:53:25" (1/1) ... [2024-10-24 01:53:25,174 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:53:25" (1/1) ... [2024-10-24 01:53:25,189 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-10-24 01:53:25,189 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:53:25" (1/1) ... [2024-10-24 01:53:25,189 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:53:25" (1/1) ... [2024-10-24 01:53:25,196 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:53:25" (1/1) ... [2024-10-24 01:53:25,199 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:53:25" (1/1) ... [2024-10-24 01:53:25,201 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:53:25" (1/1) ... [2024-10-24 01:53:25,204 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:53:25" (1/1) ... [2024-10-24 01:53:25,208 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-24 01:53:25,209 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-24 01:53:25,209 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-24 01:53:25,209 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-24 01:53:25,209 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:53:25" (1/1) ... [2024-10-24 01:53:25,224 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 01:53:25,232 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 01:53:25,245 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-24 01:53:25,247 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-24 01:53:25,284 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-24 01:53:25,284 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-24 01:53:25,284 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-24 01:53:25,284 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-24 01:53:25,392 INFO L238 CfgBuilder]: Building ICFG [2024-10-24 01:53:25,394 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-24 01:53:25,826 INFO L? ?]: Removed 60 outVars from TransFormulas that were not future-live. [2024-10-24 01:53:25,826 INFO L287 CfgBuilder]: Performing block encoding [2024-10-24 01:53:25,881 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-24 01:53:25,882 INFO L314 CfgBuilder]: Removed 0 assume(true) statements. [2024-10-24 01:53:25,882 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 01:53:25 BoogieIcfgContainer [2024-10-24 01:53:25,882 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-24 01:53:25,884 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-24 01:53:25,884 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-24 01:53:25,886 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-24 01:53:25,886 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 01:53:24" (1/3) ... [2024-10-24 01:53:25,887 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32097d70 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 01:53:25, skipping insertion in model container [2024-10-24 01:53:25,887 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:53:25" (2/3) ... [2024-10-24 01:53:25,888 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32097d70 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 01:53:25, skipping insertion in model container [2024-10-24 01:53:25,888 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 01:53:25" (3/3) ... [2024-10-24 01:53:25,889 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr.8.1.ufo.BOUNDED-16.pals.c.v+cfa-reducer.c [2024-10-24 01:53:25,902 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-24 01:53:25,902 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-24 01:53:25,957 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-24 01:53:25,962 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;@32c44711, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-24 01:53:25,962 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-24 01:53:25,966 INFO L276 IsEmpty]: Start isEmpty. Operand has 155 states, 153 states have (on average 1.7712418300653594) internal successors, (271), 154 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:53:25,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2024-10-24 01:53:25,973 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:53:25,974 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, 1, 1, 1, 1, 1] [2024-10-24 01:53:25,974 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:53:25,978 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:53:25,978 INFO L85 PathProgramCache]: Analyzing trace with hash 304652064, now seen corresponding path program 1 times [2024-10-24 01:53:25,984 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:53:25,984 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1165898993] [2024-10-24 01:53:25,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:53:25,985 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:53:26,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:53:26,369 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:53:26,370 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:53:26,370 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1165898993] [2024-10-24 01:53:26,371 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1165898993] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:53:26,371 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:53:26,371 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 01:53:26,373 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1344204181] [2024-10-24 01:53:26,373 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:53:26,377 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 01:53:26,377 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:53:26,395 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 01:53:26,396 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 01:53:26,397 INFO L87 Difference]: Start difference. First operand has 155 states, 153 states have (on average 1.7712418300653594) internal successors, (271), 154 states have internal predecessors, (271), 0 states have call successors, (0), 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 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:53:26,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:53:26,453 INFO L93 Difference]: Finished difference Result 331 states and 550 transitions. [2024-10-24 01:53:26,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 01:53:26,455 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 100 [2024-10-24 01:53:26,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:53:26,463 INFO L225 Difference]: With dead ends: 331 [2024-10-24 01:53:26,463 INFO L226 Difference]: Without dead ends: 235 [2024-10-24 01:53:26,465 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 [2024-10-24 01:53:26,467 INFO L432 NwaCegarLoop]: 394 mSDtfsCounter, 192 mSDsluCounter, 143 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 192 SdHoareTripleChecker+Valid, 537 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 01:53:26,468 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [192 Valid, 537 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 01:53:26,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 235 states. [2024-10-24 01:53:26,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 235 to 233. [2024-10-24 01:53:26,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 233 states, 232 states have (on average 1.4396551724137931) internal successors, (334), 232 states have internal predecessors, (334), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:53:26,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 233 states to 233 states and 334 transitions. [2024-10-24 01:53:26,510 INFO L78 Accepts]: Start accepts. Automaton has 233 states and 334 transitions. Word has length 100 [2024-10-24 01:53:26,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:53:26,511 INFO L471 AbstractCegarLoop]: Abstraction has 233 states and 334 transitions. [2024-10-24 01:53:26,511 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:53:26,511 INFO L276 IsEmpty]: Start isEmpty. Operand 233 states and 334 transitions. [2024-10-24 01:53:26,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-10-24 01:53:26,513 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:53:26,513 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, 1, 1, 1, 1, 1, 1] [2024-10-24 01:53:26,514 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-24 01:53:26,514 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:53:26,514 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:53:26,514 INFO L85 PathProgramCache]: Analyzing trace with hash -483910651, now seen corresponding path program 1 times [2024-10-24 01:53:26,514 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:53:26,514 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1914859843] [2024-10-24 01:53:26,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:53:26,515 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:53:26,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:53:26,654 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:53:26,654 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:53:26,654 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1914859843] [2024-10-24 01:53:26,654 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1914859843] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:53:26,654 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:53:26,655 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 01:53:26,655 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [880863765] [2024-10-24 01:53:26,655 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:53:26,656 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 01:53:26,656 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:53:26,656 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 01:53:26,656 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 01:53:26,656 INFO L87 Difference]: Start difference. First operand 233 states and 334 transitions. Second operand has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:53:26,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:53:26,686 INFO L93 Difference]: Finished difference Result 557 states and 850 transitions. [2024-10-24 01:53:26,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 01:53:26,693 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2024-10-24 01:53:26,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:53:26,695 INFO L225 Difference]: With dead ends: 557 [2024-10-24 01:53:26,695 INFO L226 Difference]: Without dead ends: 387 [2024-10-24 01:53:26,696 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 01:53:26,696 INFO L432 NwaCegarLoop]: 323 mSDtfsCounter, 128 mSDsluCounter, 142 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 128 SdHoareTripleChecker+Valid, 465 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 [2024-10-24 01:53:26,697 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [128 Valid, 465 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 01:53:26,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 387 states. [2024-10-24 01:53:26,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 387 to 385. [2024-10-24 01:53:26,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 385 states, 384 states have (on average 1.5) internal successors, (576), 384 states have internal predecessors, (576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:53:26,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 385 states to 385 states and 576 transitions. [2024-10-24 01:53:26,714 INFO L78 Accepts]: Start accepts. Automaton has 385 states and 576 transitions. Word has length 101 [2024-10-24 01:53:26,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:53:26,715 INFO L471 AbstractCegarLoop]: Abstraction has 385 states and 576 transitions. [2024-10-24 01:53:26,715 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:53:26,715 INFO L276 IsEmpty]: Start isEmpty. Operand 385 states and 576 transitions. [2024-10-24 01:53:26,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-10-24 01:53:26,717 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:53:26,717 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, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 01:53:26,717 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-24 01:53:26,717 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:53:26,718 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:53:26,718 INFO L85 PathProgramCache]: Analyzing trace with hash 1453510063, now seen corresponding path program 1 times [2024-10-24 01:53:26,718 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:53:26,718 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [811765224] [2024-10-24 01:53:26,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:53:26,718 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:53:26,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:53:26,792 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:53:26,792 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:53:26,792 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [811765224] [2024-10-24 01:53:26,793 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [811765224] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:53:26,793 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:53:26,793 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 01:53:26,793 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [850579685] [2024-10-24 01:53:26,793 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:53:26,793 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 01:53:26,794 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:53:26,794 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 01:53:26,794 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 01:53:26,794 INFO L87 Difference]: Start difference. First operand 385 states and 576 transitions. Second operand has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:53:26,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:53:26,811 INFO L93 Difference]: Finished difference Result 997 states and 1550 transitions. [2024-10-24 01:53:26,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 01:53:26,812 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 0 states have call successors, (0), 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 102 [2024-10-24 01:53:26,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:53:26,815 INFO L225 Difference]: With dead ends: 997 [2024-10-24 01:53:26,815 INFO L226 Difference]: Without dead ends: 675 [2024-10-24 01:53:26,818 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 01:53:26,819 INFO L432 NwaCegarLoop]: 315 mSDtfsCounter, 123 mSDsluCounter, 146 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 123 SdHoareTripleChecker+Valid, 461 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 [2024-10-24 01:53:26,823 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [123 Valid, 461 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 01:53:26,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 675 states. [2024-10-24 01:53:26,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 675 to 673. [2024-10-24 01:53:26,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 673 states, 672 states have (on average 1.5357142857142858) internal successors, (1032), 672 states have internal predecessors, (1032), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:53:26,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 673 states to 673 states and 1032 transitions. [2024-10-24 01:53:26,853 INFO L78 Accepts]: Start accepts. Automaton has 673 states and 1032 transitions. Word has length 102 [2024-10-24 01:53:26,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:53:26,853 INFO L471 AbstractCegarLoop]: Abstraction has 673 states and 1032 transitions. [2024-10-24 01:53:26,853 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:53:26,853 INFO L276 IsEmpty]: Start isEmpty. Operand 673 states and 1032 transitions. [2024-10-24 01:53:26,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-10-24 01:53:26,854 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:53:26,854 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, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 01:53:26,855 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-24 01:53:26,855 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:53:26,855 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:53:26,857 INFO L85 PathProgramCache]: Analyzing trace with hash -1672154048, now seen corresponding path program 1 times [2024-10-24 01:53:26,857 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:53:26,857 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1821414055] [2024-10-24 01:53:26,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:53:26,858 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:53:26,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:53:26,986 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:53:26,986 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:53:26,986 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1821414055] [2024-10-24 01:53:26,986 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1821414055] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:53:26,986 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:53:26,986 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 01:53:26,986 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1912683490] [2024-10-24 01:53:26,987 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:53:26,987 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 01:53:26,987 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:53:26,987 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 01:53:26,988 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 01:53:26,988 INFO L87 Difference]: Start difference. First operand 673 states and 1032 transitions. Second operand has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:53:27,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:53:27,014 INFO L93 Difference]: Finished difference Result 1829 states and 2866 transitions. [2024-10-24 01:53:27,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 01:53:27,015 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 103 [2024-10-24 01:53:27,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:53:27,020 INFO L225 Difference]: With dead ends: 1829 [2024-10-24 01:53:27,020 INFO L226 Difference]: Without dead ends: 1219 [2024-10-24 01:53:27,021 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 01:53:27,022 INFO L432 NwaCegarLoop]: 307 mSDtfsCounter, 118 mSDsluCounter, 150 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 457 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 [2024-10-24 01:53:27,022 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [118 Valid, 457 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 01:53:27,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1219 states. [2024-10-24 01:53:27,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1219 to 1217. [2024-10-24 01:53:27,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1217 states, 1216 states have (on average 1.5526315789473684) internal successors, (1888), 1216 states have internal predecessors, (1888), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:53:27,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1217 states to 1217 states and 1888 transitions. [2024-10-24 01:53:27,042 INFO L78 Accepts]: Start accepts. Automaton has 1217 states and 1888 transitions. Word has length 103 [2024-10-24 01:53:27,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:53:27,043 INFO L471 AbstractCegarLoop]: Abstraction has 1217 states and 1888 transitions. [2024-10-24 01:53:27,043 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:53:27,043 INFO L276 IsEmpty]: Start isEmpty. Operand 1217 states and 1888 transitions. [2024-10-24 01:53:27,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-10-24 01:53:27,046 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:53:27,046 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 01:53:27,046 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-24 01:53:27,046 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:53:27,047 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:53:27,047 INFO L85 PathProgramCache]: Analyzing trace with hash 1766547414, now seen corresponding path program 1 times [2024-10-24 01:53:27,047 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:53:27,047 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1629598716] [2024-10-24 01:53:27,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:53:27,047 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:53:27,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:53:27,130 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:53:27,130 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:53:27,130 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1629598716] [2024-10-24 01:53:27,130 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1629598716] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:53:27,130 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:53:27,130 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 01:53:27,130 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [559998527] [2024-10-24 01:53:27,130 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:53:27,131 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 01:53:27,131 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:53:27,131 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 01:53:27,131 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 01:53:27,131 INFO L87 Difference]: Start difference. First operand 1217 states and 1888 transitions. Second operand has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:53:27,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:53:27,154 INFO L93 Difference]: Finished difference Result 3397 states and 5330 transitions. [2024-10-24 01:53:27,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 01:53:27,155 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 104 [2024-10-24 01:53:27,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:53:27,162 INFO L225 Difference]: With dead ends: 3397 [2024-10-24 01:53:27,162 INFO L226 Difference]: Without dead ends: 2243 [2024-10-24 01:53:27,164 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 01:53:27,165 INFO L432 NwaCegarLoop]: 299 mSDtfsCounter, 113 mSDsluCounter, 154 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 453 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 [2024-10-24 01:53:27,166 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [113 Valid, 453 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 01:53:27,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2243 states. [2024-10-24 01:53:27,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2243 to 2241. [2024-10-24 01:53:27,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2241 states, 2240 states have (on average 1.5571428571428572) internal successors, (3488), 2240 states have internal predecessors, (3488), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:53:27,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2241 states to 2241 states and 3488 transitions. [2024-10-24 01:53:27,218 INFO L78 Accepts]: Start accepts. Automaton has 2241 states and 3488 transitions. Word has length 104 [2024-10-24 01:53:27,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:53:27,218 INFO L471 AbstractCegarLoop]: Abstraction has 2241 states and 3488 transitions. [2024-10-24 01:53:27,218 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:53:27,219 INFO L276 IsEmpty]: Start isEmpty. Operand 2241 states and 3488 transitions. [2024-10-24 01:53:27,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2024-10-24 01:53:27,219 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:53:27,219 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 01:53:27,219 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-24 01:53:27,219 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:53:27,220 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:53:27,220 INFO L85 PathProgramCache]: Analyzing trace with hash 1695207288, now seen corresponding path program 1 times [2024-10-24 01:53:27,220 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:53:27,220 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [132921637] [2024-10-24 01:53:27,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:53:27,220 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:53:27,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:53:27,289 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:53:27,290 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:53:27,290 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [132921637] [2024-10-24 01:53:27,290 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [132921637] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:53:27,291 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:53:27,291 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 01:53:27,291 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1689305073] [2024-10-24 01:53:27,291 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:53:27,291 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 01:53:27,292 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:53:27,293 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 01:53:27,293 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 01:53:27,293 INFO L87 Difference]: Start difference. First operand 2241 states and 3488 transitions. Second operand has 3 states, 3 states have (on average 35.0) internal successors, (105), 3 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:53:27,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:53:27,325 INFO L93 Difference]: Finished difference Result 6341 states and 9922 transitions. [2024-10-24 01:53:27,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 01:53:27,326 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.0) internal successors, (105), 3 states have internal predecessors, (105), 0 states have call successors, (0), 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 105 [2024-10-24 01:53:27,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:53:27,336 INFO L225 Difference]: With dead ends: 6341 [2024-10-24 01:53:27,337 INFO L226 Difference]: Without dead ends: 4163 [2024-10-24 01:53:27,339 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 01:53:27,339 INFO L432 NwaCegarLoop]: 291 mSDtfsCounter, 108 mSDsluCounter, 158 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 449 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 [2024-10-24 01:53:27,339 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [108 Valid, 449 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 01:53:27,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4163 states. [2024-10-24 01:53:27,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4163 to 4161. [2024-10-24 01:53:27,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4161 states, 4160 states have (on average 1.5538461538461539) internal successors, (6464), 4160 states have internal predecessors, (6464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:53:27,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4161 states to 4161 states and 6464 transitions. [2024-10-24 01:53:27,403 INFO L78 Accepts]: Start accepts. Automaton has 4161 states and 6464 transitions. Word has length 105 [2024-10-24 01:53:27,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:53:27,404 INFO L471 AbstractCegarLoop]: Abstraction has 4161 states and 6464 transitions. [2024-10-24 01:53:27,404 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.0) internal successors, (105), 3 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:53:27,404 INFO L276 IsEmpty]: Start isEmpty. Operand 4161 states and 6464 transitions. [2024-10-24 01:53:27,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-10-24 01:53:27,405 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:53:27,405 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 01:53:27,405 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-24 01:53:27,405 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:53:27,405 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:53:27,406 INFO L85 PathProgramCache]: Analyzing trace with hash -1794051376, now seen corresponding path program 1 times [2024-10-24 01:53:27,406 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:53:27,406 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1923689046] [2024-10-24 01:53:27,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:53:27,406 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:53:27,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:53:27,500 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:53:27,500 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:53:27,500 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1923689046] [2024-10-24 01:53:27,500 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1923689046] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:53:27,500 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:53:27,500 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 01:53:27,500 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1267541647] [2024-10-24 01:53:27,500 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:53:27,500 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 01:53:27,501 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:53:27,501 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 01:53:27,501 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 01:53:27,501 INFO L87 Difference]: Start difference. First operand 4161 states and 6464 transitions. Second operand has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:53:27,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:53:27,542 INFO L93 Difference]: Finished difference Result 11845 states and 18434 transitions. [2024-10-24 01:53:27,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 01:53:27,543 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2024-10-24 01:53:27,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:53:27,560 INFO L225 Difference]: With dead ends: 11845 [2024-10-24 01:53:27,561 INFO L226 Difference]: Without dead ends: 7747 [2024-10-24 01:53:27,565 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 01:53:27,567 INFO L432 NwaCegarLoop]: 283 mSDtfsCounter, 103 mSDsluCounter, 162 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 445 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 [2024-10-24 01:53:27,568 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [103 Valid, 445 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 01:53:27,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7747 states. [2024-10-24 01:53:27,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7747 to 7745. [2024-10-24 01:53:27,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7745 states, 7744 states have (on average 1.5454545454545454) internal successors, (11968), 7744 states have internal predecessors, (11968), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:53:27,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7745 states to 7745 states and 11968 transitions. [2024-10-24 01:53:27,718 INFO L78 Accepts]: Start accepts. Automaton has 7745 states and 11968 transitions. Word has length 106 [2024-10-24 01:53:27,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:53:27,718 INFO L471 AbstractCegarLoop]: Abstraction has 7745 states and 11968 transitions. [2024-10-24 01:53:27,718 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:53:27,718 INFO L276 IsEmpty]: Start isEmpty. Operand 7745 states and 11968 transitions. [2024-10-24 01:53:27,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-10-24 01:53:27,719 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:53:27,719 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 01:53:27,719 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-24 01:53:27,719 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:53:27,719 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:53:27,719 INFO L85 PathProgramCache]: Analyzing trace with hash -369340920, now seen corresponding path program 1 times [2024-10-24 01:53:27,719 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:53:27,719 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1084888241] [2024-10-24 01:53:27,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:53:27,719 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:53:27,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:53:27,804 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:53:27,805 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:53:27,805 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1084888241] [2024-10-24 01:53:27,805 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1084888241] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:53:27,805 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:53:27,805 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 01:53:27,805 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1662931477] [2024-10-24 01:53:27,805 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:53:27,805 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 01:53:27,806 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:53:27,806 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 01:53:27,806 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 01:53:27,806 INFO L87 Difference]: Start difference. First operand 7745 states and 11968 transitions. Second operand has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:53:27,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:53:27,934 INFO L93 Difference]: Finished difference Result 22085 states and 34114 transitions. [2024-10-24 01:53:27,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 01:53:27,935 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 0 states have call successors, (0), 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 107 [2024-10-24 01:53:27,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:53:27,968 INFO L225 Difference]: With dead ends: 22085 [2024-10-24 01:53:27,969 INFO L226 Difference]: Without dead ends: 14403 [2024-10-24 01:53:27,977 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 01:53:27,978 INFO L432 NwaCegarLoop]: 275 mSDtfsCounter, 98 mSDsluCounter, 166 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 441 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 [2024-10-24 01:53:27,978 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [98 Valid, 441 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 01:53:27,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14403 states. [2024-10-24 01:53:28,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14403 to 14401. [2024-10-24 01:53:28,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14401 states, 14400 states have (on average 1.5333333333333334) internal successors, (22080), 14400 states have internal predecessors, (22080), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:53:28,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14401 states to 14401 states and 22080 transitions. [2024-10-24 01:53:28,269 INFO L78 Accepts]: Start accepts. Automaton has 14401 states and 22080 transitions. Word has length 107 [2024-10-24 01:53:28,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:53:28,269 INFO L471 AbstractCegarLoop]: Abstraction has 14401 states and 22080 transitions. [2024-10-24 01:53:28,270 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:53:28,270 INFO L276 IsEmpty]: Start isEmpty. Operand 14401 states and 22080 transitions. [2024-10-24 01:53:28,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-10-24 01:53:28,270 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:53:28,270 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 01:53:28,270 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-24 01:53:28,270 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:53:28,271 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:53:28,271 INFO L85 PathProgramCache]: Analyzing trace with hash 47272354, now seen corresponding path program 1 times [2024-10-24 01:53:28,271 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:53:28,271 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1356320902] [2024-10-24 01:53:28,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:53:28,271 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:53:28,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:53:28,522 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:53:28,523 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:53:28,523 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1356320902] [2024-10-24 01:53:28,523 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1356320902] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:53:28,523 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:53:28,523 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-10-24 01:53:28,523 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2094880841] [2024-10-24 01:53:28,523 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:53:28,523 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-24 01:53:28,523 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:53:28,524 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-24 01:53:28,524 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-10-24 01:53:28,524 INFO L87 Difference]: Start difference. First operand 14401 states and 22080 transitions. Second operand has 10 states, 10 states have (on average 10.8) internal successors, (108), 10 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:53:29,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:53:29,627 INFO L93 Difference]: Finished difference Result 243809 states and 374352 transitions. [2024-10-24 01:53:29,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-10-24 01:53:29,627 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.8) internal successors, (108), 10 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2024-10-24 01:53:29,627 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:53:30,135 INFO L225 Difference]: With dead ends: 243809 [2024-10-24 01:53:30,136 INFO L226 Difference]: Without dead ends: 229471 [2024-10-24 01:53:30,233 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=162, Invalid=344, Unknown=0, NotChecked=0, Total=506 [2024-10-24 01:53:30,235 INFO L432 NwaCegarLoop]: 199 mSDtfsCounter, 2802 mSDsluCounter, 5143 mSDsCounter, 0 mSdLazyCounter, 274 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2802 SdHoareTripleChecker+Valid, 5342 SdHoareTripleChecker+Invalid, 279 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 274 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-24 01:53:30,235 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2802 Valid, 5342 Invalid, 279 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 274 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-24 01:53:30,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 229471 states. [2024-10-24 01:53:32,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 229471 to 28737. [2024-10-24 01:53:32,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28737 states, 28736 states have (on average 1.5167037861915367) internal successors, (43584), 28736 states have internal predecessors, (43584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:53:32,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28737 states to 28737 states and 43584 transitions. [2024-10-24 01:53:32,135 INFO L78 Accepts]: Start accepts. Automaton has 28737 states and 43584 transitions. Word has length 108 [2024-10-24 01:53:32,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:53:32,135 INFO L471 AbstractCegarLoop]: Abstraction has 28737 states and 43584 transitions. [2024-10-24 01:53:32,135 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.8) internal successors, (108), 10 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:53:32,135 INFO L276 IsEmpty]: Start isEmpty. Operand 28737 states and 43584 transitions. [2024-10-24 01:53:32,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-10-24 01:53:32,136 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:53:32,136 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 01:53:32,136 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-24 01:53:32,136 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:53:32,137 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:53:32,137 INFO L85 PathProgramCache]: Analyzing trace with hash 1578245085, now seen corresponding path program 1 times [2024-10-24 01:53:32,137 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:53:32,137 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1010349205] [2024-10-24 01:53:32,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:53:32,137 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:53:32,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:53:32,609 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:53:32,609 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:53:32,609 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1010349205] [2024-10-24 01:53:32,609 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1010349205] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:53:32,610 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:53:32,610 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-10-24 01:53:32,610 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [864815024] [2024-10-24 01:53:32,610 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:53:32,610 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-24 01:53:32,610 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:53:32,611 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-24 01:53:32,611 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2024-10-24 01:53:32,611 INFO L87 Difference]: Start difference. First operand 28737 states and 43584 transitions. Second operand has 10 states, 10 states have (on average 11.0) internal successors, (110), 10 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:53:33,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:53:33,134 INFO L93 Difference]: Finished difference Result 57413 states and 87106 transitions. [2024-10-24 01:53:33,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-24 01:53:33,135 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 11.0) internal successors, (110), 10 states have internal predecessors, (110), 0 states have call successors, (0), 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 110 [2024-10-24 01:53:33,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:53:33,168 INFO L225 Difference]: With dead ends: 57413 [2024-10-24 01:53:33,168 INFO L226 Difference]: Without dead ends: 28739 [2024-10-24 01:53:33,197 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=84, Invalid=156, Unknown=0, NotChecked=0, Total=240 [2024-10-24 01:53:33,198 INFO L432 NwaCegarLoop]: 195 mSDtfsCounter, 529 mSDsluCounter, 989 mSDsCounter, 0 mSdLazyCounter, 133 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 529 SdHoareTripleChecker+Valid, 1184 SdHoareTripleChecker+Invalid, 138 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 133 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 01:53:33,198 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [529 Valid, 1184 Invalid, 138 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 133 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 01:53:33,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28739 states. [2024-10-24 01:53:33,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28739 to 28737. [2024-10-24 01:53:33,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28737 states, 28736 states have (on average 1.5077951002227172) internal successors, (43328), 28736 states have internal predecessors, (43328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:53:33,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28737 states to 28737 states and 43328 transitions. [2024-10-24 01:53:33,649 INFO L78 Accepts]: Start accepts. Automaton has 28737 states and 43328 transitions. Word has length 110 [2024-10-24 01:53:33,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:53:33,649 INFO L471 AbstractCegarLoop]: Abstraction has 28737 states and 43328 transitions. [2024-10-24 01:53:33,650 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 11.0) internal successors, (110), 10 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:53:33,650 INFO L276 IsEmpty]: Start isEmpty. Operand 28737 states and 43328 transitions. [2024-10-24 01:53:33,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-10-24 01:53:33,650 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:53:33,650 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 01:53:33,650 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-24 01:53:33,650 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:53:33,651 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:53:33,651 INFO L85 PathProgramCache]: Analyzing trace with hash 1557242430, now seen corresponding path program 1 times [2024-10-24 01:53:33,651 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:53:33,651 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [526988147] [2024-10-24 01:53:33,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:53:33,651 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:53:33,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:53:33,723 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:53:33,723 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:53:33,723 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [526988147] [2024-10-24 01:53:33,723 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [526988147] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:53:33,724 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:53:33,724 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 01:53:33,724 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1614328318] [2024-10-24 01:53:33,724 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:53:33,724 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 01:53:33,724 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:53:33,725 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 01:53:33,725 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 01:53:33,725 INFO L87 Difference]: Start difference. First operand 28737 states and 43328 transitions. Second operand has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:53:33,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:53:33,847 INFO L93 Difference]: Finished difference Result 71367 states and 107588 transitions. [2024-10-24 01:53:33,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 01:53:33,847 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 0 states have call successors, (0), 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 110 [2024-10-24 01:53:33,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:53:33,887 INFO L225 Difference]: With dead ends: 71367 [2024-10-24 01:53:33,887 INFO L226 Difference]: Without dead ends: 42693 [2024-10-24 01:53:33,911 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 01:53:33,911 INFO L432 NwaCegarLoop]: 260 mSDtfsCounter, 89 mSDsluCounter, 138 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 398 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 [2024-10-24 01:53:33,912 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [89 Valid, 398 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 01:53:33,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42693 states. [2024-10-24 01:53:34,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42693 to 42691. [2024-10-24 01:53:34,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42691 states, 42690 states have (on average 1.4977278051065823) internal successors, (63938), 42690 states have internal predecessors, (63938), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:53:34,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42691 states to 42691 states and 63938 transitions. [2024-10-24 01:53:34,567 INFO L78 Accepts]: Start accepts. Automaton has 42691 states and 63938 transitions. Word has length 110 [2024-10-24 01:53:34,569 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:53:34,569 INFO L471 AbstractCegarLoop]: Abstraction has 42691 states and 63938 transitions. [2024-10-24 01:53:34,569 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:53:34,569 INFO L276 IsEmpty]: Start isEmpty. Operand 42691 states and 63938 transitions. [2024-10-24 01:53:34,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-10-24 01:53:34,570 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:53:34,570 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 01:53:34,570 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-24 01:53:34,571 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:53:34,571 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:53:34,571 INFO L85 PathProgramCache]: Analyzing trace with hash 1679048153, now seen corresponding path program 1 times [2024-10-24 01:53:34,571 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:53:34,571 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1780707829] [2024-10-24 01:53:34,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:53:34,572 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:53:34,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:53:34,719 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:53:34,719 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:53:34,719 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1780707829] [2024-10-24 01:53:34,720 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1780707829] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:53:34,720 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:53:34,720 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 01:53:34,720 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1266969961] [2024-10-24 01:53:34,720 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:53:34,720 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 01:53:34,722 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:53:34,722 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 01:53:34,723 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-24 01:53:34,723 INFO L87 Difference]: Start difference. First operand 42691 states and 63938 transitions. Second operand has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:53:34,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:53:34,974 INFO L93 Difference]: Finished difference Result 85317 states and 127811 transitions. [2024-10-24 01:53:34,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-24 01:53:34,974 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 0 states have call successors, (0), 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 111 [2024-10-24 01:53:34,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:53:35,019 INFO L225 Difference]: With dead ends: 85317 [2024-10-24 01:53:35,019 INFO L226 Difference]: Without dead ends: 42691 [2024-10-24 01:53:35,053 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 [2024-10-24 01:53:35,054 INFO L432 NwaCegarLoop]: 127 mSDtfsCounter, 517 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 517 SdHoareTripleChecker+Valid, 147 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 01:53:35,054 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [517 Valid, 147 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 01:53:35,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42691 states. [2024-10-24 01:53:35,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42691 to 42691. [2024-10-24 01:53:35,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42691 states, 42690 states have (on average 1.4887327242914032) internal successors, (63554), 42690 states have internal predecessors, (63554), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:53:35,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42691 states to 42691 states and 63554 transitions. [2024-10-24 01:53:35,765 INFO L78 Accepts]: Start accepts. Automaton has 42691 states and 63554 transitions. Word has length 111 [2024-10-24 01:53:35,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:53:35,766 INFO L471 AbstractCegarLoop]: Abstraction has 42691 states and 63554 transitions. [2024-10-24 01:53:35,766 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:53:35,766 INFO L276 IsEmpty]: Start isEmpty. Operand 42691 states and 63554 transitions. [2024-10-24 01:53:35,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-10-24 01:53:35,766 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:53:35,766 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 01:53:35,767 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-24 01:53:35,767 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:53:35,767 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:53:35,767 INFO L85 PathProgramCache]: Analyzing trace with hash -62368962, now seen corresponding path program 1 times [2024-10-24 01:53:35,767 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:53:35,767 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1100269944] [2024-10-24 01:53:35,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:53:35,767 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:53:35,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:53:36,062 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:53:36,063 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:53:36,063 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1100269944] [2024-10-24 01:53:36,063 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1100269944] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:53:36,063 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:53:36,063 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 01:53:36,063 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1923526543] [2024-10-24 01:53:36,063 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:53:36,063 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 01:53:36,063 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:53:36,064 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 01:53:36,064 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-24 01:53:36,064 INFO L87 Difference]: Start difference. First operand 42691 states and 63554 transitions. Second operand has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:53:36,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:53:36,391 INFO L93 Difference]: Finished difference Result 113991 states and 170052 transitions. [2024-10-24 01:53:36,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-24 01:53:36,391 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 0 states have call successors, (0), 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 111 [2024-10-24 01:53:36,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:53:36,460 INFO L225 Difference]: With dead ends: 113991 [2024-10-24 01:53:36,460 INFO L226 Difference]: Without dead ends: 71365 [2024-10-24 01:53:36,497 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 [2024-10-24 01:53:36,497 INFO L432 NwaCegarLoop]: 127 mSDtfsCounter, 823 mSDsluCounter, 78 mSDsCounter, 0 mSdLazyCounter, 147 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 823 SdHoareTripleChecker+Valid, 205 SdHoareTripleChecker+Invalid, 149 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 147 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 01:53:36,497 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [823 Valid, 205 Invalid, 149 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 147 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 01:53:36,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71365 states. [2024-10-24 01:53:37,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71365 to 71363. [2024-10-24 01:53:37,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71363 states, 71362 states have (on average 1.4860850312491243) internal successors, (106050), 71362 states have internal predecessors, (106050), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:53:37,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71363 states to 71363 states and 106050 transitions. [2024-10-24 01:53:37,468 INFO L78 Accepts]: Start accepts. Automaton has 71363 states and 106050 transitions. Word has length 111 [2024-10-24 01:53:37,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:53:37,468 INFO L471 AbstractCegarLoop]: Abstraction has 71363 states and 106050 transitions. [2024-10-24 01:53:37,468 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:53:37,468 INFO L276 IsEmpty]: Start isEmpty. Operand 71363 states and 106050 transitions. [2024-10-24 01:53:37,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-10-24 01:53:37,469 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:53:37,469 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 01:53:37,469 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-24 01:53:37,469 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:53:37,469 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:53:37,469 INFO L85 PathProgramCache]: Analyzing trace with hash 1684057699, now seen corresponding path program 1 times [2024-10-24 01:53:37,470 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:53:37,470 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1320241185] [2024-10-24 01:53:37,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:53:37,470 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:53:37,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:53:37,586 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:53:37,586 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:53:37,586 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1320241185] [2024-10-24 01:53:37,587 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1320241185] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:53:37,587 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:53:37,587 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 01:53:37,587 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1723724459] [2024-10-24 01:53:37,587 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:53:37,587 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 01:53:37,587 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:53:37,588 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 01:53:37,588 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-24 01:53:37,588 INFO L87 Difference]: Start difference. First operand 71363 states and 106050 transitions. Second operand has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:53:38,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:53:38,286 INFO L93 Difference]: Finished difference Result 142661 states and 212035 transitions. [2024-10-24 01:53:38,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-24 01:53:38,287 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 0 states have call successors, (0), 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 111 [2024-10-24 01:53:38,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:53:38,375 INFO L225 Difference]: With dead ends: 142661 [2024-10-24 01:53:38,375 INFO L226 Difference]: Without dead ends: 71363 [2024-10-24 01:53:38,397 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 [2024-10-24 01:53:38,397 INFO L432 NwaCegarLoop]: 127 mSDtfsCounter, 475 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 475 SdHoareTripleChecker+Valid, 171 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 01:53:38,397 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [475 Valid, 171 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 01:53:38,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71363 states. [2024-10-24 01:53:39,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71363 to 71363. [2024-10-24 01:53:39,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71363 states, 71362 states have (on average 1.4771166727389928) internal successors, (105410), 71362 states have internal predecessors, (105410), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:53:39,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71363 states to 71363 states and 105410 transitions. [2024-10-24 01:53:39,168 INFO L78 Accepts]: Start accepts. Automaton has 71363 states and 105410 transitions. Word has length 111 [2024-10-24 01:53:39,168 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:53:39,168 INFO L471 AbstractCegarLoop]: Abstraction has 71363 states and 105410 transitions. [2024-10-24 01:53:39,169 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:53:39,169 INFO L276 IsEmpty]: Start isEmpty. Operand 71363 states and 105410 transitions. [2024-10-24 01:53:39,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-10-24 01:53:39,169 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:53:39,169 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 01:53:39,169 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-10-24 01:53:39,169 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:53:39,170 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:53:39,170 INFO L85 PathProgramCache]: Analyzing trace with hash 1812143006, now seen corresponding path program 1 times [2024-10-24 01:53:39,170 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:53:39,170 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1320826070] [2024-10-24 01:53:39,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:53:39,170 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:53:39,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:53:39,259 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:53:39,259 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:53:39,259 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1320826070] [2024-10-24 01:53:39,259 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1320826070] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:53:39,259 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:53:39,259 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 01:53:39,259 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1629885470] [2024-10-24 01:53:39,259 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:53:39,260 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 01:53:39,260 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:53:39,260 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 01:53:39,260 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-24 01:53:39,260 INFO L87 Difference]: Start difference. First operand 71363 states and 105410 transitions. Second operand has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:53:39,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:53:39,820 INFO L93 Difference]: Finished difference Result 142661 states and 210755 transitions. [2024-10-24 01:53:39,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-24 01:53:39,820 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 0 states have call successors, (0), 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 111 [2024-10-24 01:53:39,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:53:39,905 INFO L225 Difference]: With dead ends: 142661 [2024-10-24 01:53:39,905 INFO L226 Difference]: Without dead ends: 71363 [2024-10-24 01:53:39,950 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 [2024-10-24 01:53:39,951 INFO L432 NwaCegarLoop]: 127 mSDtfsCounter, 498 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 498 SdHoareTripleChecker+Valid, 155 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 01:53:39,951 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [498 Valid, 155 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 01:53:39,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71363 states. [2024-10-24 01:53:40,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71363 to 71363. [2024-10-24 01:53:40,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71363 states, 71362 states have (on average 1.4681483142288614) internal successors, (104770), 71362 states have internal predecessors, (104770), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:53:41,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71363 states to 71363 states and 104770 transitions. [2024-10-24 01:53:41,011 INFO L78 Accepts]: Start accepts. Automaton has 71363 states and 104770 transitions. Word has length 111 [2024-10-24 01:53:41,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:53:41,011 INFO L471 AbstractCegarLoop]: Abstraction has 71363 states and 104770 transitions. [2024-10-24 01:53:41,012 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:53:41,012 INFO L276 IsEmpty]: Start isEmpty. Operand 71363 states and 104770 transitions. [2024-10-24 01:53:41,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-10-24 01:53:41,012 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:53:41,012 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 01:53:41,012 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-10-24 01:53:41,013 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:53:41,013 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:53:41,013 INFO L85 PathProgramCache]: Analyzing trace with hash -2114553063, now seen corresponding path program 1 times [2024-10-24 01:53:41,013 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:53:41,013 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1526275536] [2024-10-24 01:53:41,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:53:41,013 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:53:41,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:53:41,136 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:53:41,136 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:53:41,136 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1526275536] [2024-10-24 01:53:41,136 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1526275536] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:53:41,136 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:53:41,138 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 01:53:41,138 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1470972057] [2024-10-24 01:53:41,138 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:53:41,138 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 01:53:41,138 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:53:41,139 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 01:53:41,139 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-24 01:53:41,139 INFO L87 Difference]: Start difference. First operand 71363 states and 104770 transitions. Second operand has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:53:41,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:53:41,713 INFO L93 Difference]: Finished difference Result 142661 states and 209475 transitions. [2024-10-24 01:53:41,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-24 01:53:41,713 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 0 states have call successors, (0), 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 111 [2024-10-24 01:53:41,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:53:41,779 INFO L225 Difference]: With dead ends: 142661 [2024-10-24 01:53:41,779 INFO L226 Difference]: Without dead ends: 71363 [2024-10-24 01:53:41,821 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 [2024-10-24 01:53:41,822 INFO L432 NwaCegarLoop]: 127 mSDtfsCounter, 521 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 521 SdHoareTripleChecker+Valid, 139 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 01:53:41,822 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [521 Valid, 139 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 01:53:41,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71363 states. [2024-10-24 01:53:42,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71363 to 71363. [2024-10-24 01:53:42,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71363 states, 71362 states have (on average 1.45917995571873) internal successors, (104130), 71362 states have internal predecessors, (104130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:53:42,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71363 states to 71363 states and 104130 transitions. [2024-10-24 01:53:42,740 INFO L78 Accepts]: Start accepts. Automaton has 71363 states and 104130 transitions. Word has length 111 [2024-10-24 01:53:42,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:53:42,741 INFO L471 AbstractCegarLoop]: Abstraction has 71363 states and 104130 transitions. [2024-10-24 01:53:42,741 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:53:42,741 INFO L276 IsEmpty]: Start isEmpty. Operand 71363 states and 104130 transitions. [2024-10-24 01:53:42,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-10-24 01:53:42,741 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:53:42,741 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 01:53:42,741 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-10-24 01:53:42,741 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:53:42,742 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:53:42,742 INFO L85 PathProgramCache]: Analyzing trace with hash 1818295508, now seen corresponding path program 1 times [2024-10-24 01:53:42,742 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:53:42,742 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1071061626] [2024-10-24 01:53:42,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:53:42,742 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:53:42,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:53:42,856 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:53:42,856 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:53:42,857 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1071061626] [2024-10-24 01:53:42,857 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1071061626] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:53:42,857 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:53:42,857 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 01:53:42,857 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [11835116] [2024-10-24 01:53:42,857 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:53:42,857 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 01:53:42,858 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:53:42,858 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 01:53:42,858 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-24 01:53:42,858 INFO L87 Difference]: Start difference. First operand 71363 states and 104130 transitions. Second operand has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:53:43,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:53:43,450 INFO L93 Difference]: Finished difference Result 142661 states and 208195 transitions. [2024-10-24 01:53:43,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-24 01:53:43,450 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 0 states have call successors, (0), 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 111 [2024-10-24 01:53:43,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:53:43,516 INFO L225 Difference]: With dead ends: 142661 [2024-10-24 01:53:43,516 INFO L226 Difference]: Without dead ends: 71363 [2024-10-24 01:53:43,553 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 [2024-10-24 01:53:43,555 INFO L432 NwaCegarLoop]: 127 mSDtfsCounter, 440 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 440 SdHoareTripleChecker+Valid, 187 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 01:53:43,555 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [440 Valid, 187 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 01:53:43,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71363 states. [2024-10-24 01:53:44,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71363 to 71363. [2024-10-24 01:53:44,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71363 states, 71362 states have (on average 1.4502115972085985) internal successors, (103490), 71362 states have internal predecessors, (103490), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:53:44,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71363 states to 71363 states and 103490 transitions. [2024-10-24 01:53:44,583 INFO L78 Accepts]: Start accepts. Automaton has 71363 states and 103490 transitions. Word has length 111 [2024-10-24 01:53:44,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:53:44,583 INFO L471 AbstractCegarLoop]: Abstraction has 71363 states and 103490 transitions. [2024-10-24 01:53:44,584 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:53:44,584 INFO L276 IsEmpty]: Start isEmpty. Operand 71363 states and 103490 transitions. [2024-10-24 01:53:44,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-10-24 01:53:44,585 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:53:44,585 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 01:53:44,585 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-10-24 01:53:44,585 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:53:44,586 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:53:44,586 INFO L85 PathProgramCache]: Analyzing trace with hash 1289005007, now seen corresponding path program 1 times [2024-10-24 01:53:44,586 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:53:44,586 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [41135797] [2024-10-24 01:53:44,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:53:44,586 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:53:44,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:53:44,899 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:53:44,899 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:53:44,899 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [41135797] [2024-10-24 01:53:44,899 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [41135797] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:53:44,899 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:53:44,899 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 01:53:44,899 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1459735096] [2024-10-24 01:53:44,900 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:53:44,900 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 01:53:44,900 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:53:44,900 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 01:53:44,900 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-24 01:53:44,900 INFO L87 Difference]: Start difference. First operand 71363 states and 103490 transitions. Second operand has 5 states, 5 states have (on average 22.2) internal successors, (111), 5 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:53:45,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:53:45,096 INFO L93 Difference]: Finished difference Result 73413 states and 106563 transitions. [2024-10-24 01:53:45,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-24 01:53:45,097 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 5 states have internal predecessors, (111), 0 states have call successors, (0), 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 111 [2024-10-24 01:53:45,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:53:45,179 INFO L225 Difference]: With dead ends: 73413 [2024-10-24 01:53:45,179 INFO L226 Difference]: Without dead ends: 73411 [2024-10-24 01:53:45,204 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 [2024-10-24 01:53:45,205 INFO L432 NwaCegarLoop]: 197 mSDtfsCounter, 0 mSDsluCounter, 582 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 779 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 [2024-10-24 01:53:45,205 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 779 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 01:53:45,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73411 states. [2024-10-24 01:53:46,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73411 to 73411. [2024-10-24 01:53:46,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73411 states, 73410 states have (on average 1.4359079144530718) internal successors, (105410), 73410 states have internal predecessors, (105410), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:53:46,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73411 states to 73411 states and 105410 transitions. [2024-10-24 01:53:46,572 INFO L78 Accepts]: Start accepts. Automaton has 73411 states and 105410 transitions. Word has length 111 [2024-10-24 01:53:46,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:53:46,573 INFO L471 AbstractCegarLoop]: Abstraction has 73411 states and 105410 transitions. [2024-10-24 01:53:46,574 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 5 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:53:46,574 INFO L276 IsEmpty]: Start isEmpty. Operand 73411 states and 105410 transitions. [2024-10-24 01:53:46,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2024-10-24 01:53:46,588 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:53:46,588 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 01:53:46,588 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-10-24 01:53:46,588 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:53:46,588 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:53:46,588 INFO L85 PathProgramCache]: Analyzing trace with hash -558287503, now seen corresponding path program 1 times [2024-10-24 01:53:46,589 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:53:46,589 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [837886500] [2024-10-24 01:53:46,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:53:46,589 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:53:46,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:53:46,814 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-24 01:53:46,814 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:53:46,814 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [837886500] [2024-10-24 01:53:46,814 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [837886500] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:53:46,814 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:53:46,814 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-10-24 01:53:46,815 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [628871666] [2024-10-24 01:53:46,815 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:53:46,815 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-24 01:53:46,815 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:53:46,815 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-24 01:53:46,816 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-10-24 01:53:46,816 INFO L87 Difference]: Start difference. First operand 73411 states and 105410 transitions. Second operand has 10 states, 10 states have (on average 14.7) internal successors, (147), 10 states have internal predecessors, (147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:53:48,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:53:48,486 INFO L93 Difference]: Finished difference Result 682965 states and 980363 transitions. [2024-10-24 01:53:48,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-24 01:53:48,486 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 14.7) internal successors, (147), 10 states have internal predecessors, (147), 0 states have call successors, (0), 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 149 [2024-10-24 01:53:48,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:53:49,871 INFO L225 Difference]: With dead ends: 682965 [2024-10-24 01:53:49,875 INFO L226 Difference]: Without dead ends: 609619 [2024-10-24 01:53:50,008 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2024-10-24 01:53:50,009 INFO L432 NwaCegarLoop]: 338 mSDtfsCounter, 2292 mSDsluCounter, 2535 mSDsCounter, 0 mSdLazyCounter, 236 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2292 SdHoareTripleChecker+Valid, 2873 SdHoareTripleChecker+Invalid, 236 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 236 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 01:53:50,009 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2292 Valid, 2873 Invalid, 236 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 236 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 01:53:50,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 609619 states. [2024-10-24 01:53:54,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 609619 to 146755. [2024-10-24 01:53:54,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 146755 states, 146754 states have (on average 1.4317429167177727) internal successors, (210114), 146754 states have internal predecessors, (210114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:53:55,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146755 states to 146755 states and 210114 transitions. [2024-10-24 01:53:55,028 INFO L78 Accepts]: Start accepts. Automaton has 146755 states and 210114 transitions. Word has length 149 [2024-10-24 01:53:55,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:53:55,028 INFO L471 AbstractCegarLoop]: Abstraction has 146755 states and 210114 transitions. [2024-10-24 01:53:55,028 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 14.7) internal successors, (147), 10 states have internal predecessors, (147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:53:55,028 INFO L276 IsEmpty]: Start isEmpty. Operand 146755 states and 210114 transitions. [2024-10-24 01:53:55,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2024-10-24 01:53:55,051 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:53:55,051 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 01:53:55,051 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-10-24 01:53:55,051 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:53:55,052 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:53:55,052 INFO L85 PathProgramCache]: Analyzing trace with hash 508632567, now seen corresponding path program 1 times [2024-10-24 01:53:55,052 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:53:55,052 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1860248972] [2024-10-24 01:53:55,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:53:55,053 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:53:55,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:53:55,264 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-10-24 01:53:55,264 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:53:55,264 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1860248972] [2024-10-24 01:53:55,264 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1860248972] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:53:55,264 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:53:55,265 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-10-24 01:53:55,265 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [445599808] [2024-10-24 01:53:55,265 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:53:55,265 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-24 01:53:55,265 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:53:55,265 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-24 01:53:55,266 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-10-24 01:53:55,266 INFO L87 Difference]: Start difference. First operand 146755 states and 210114 transitions. Second operand has 10 states, 10 states have (on average 14.6) internal successors, (146), 10 states have internal predecessors, (146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:53:57,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:53:57,414 INFO L93 Difference]: Finished difference Result 756309 states and 1085067 transitions. [2024-10-24 01:53:57,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-24 01:53:57,414 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 14.6) internal successors, (146), 10 states have internal predecessors, (146), 0 states have call successors, (0), 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 149 [2024-10-24 01:53:57,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:53:58,432 INFO L225 Difference]: With dead ends: 756309 [2024-10-24 01:53:58,432 INFO L226 Difference]: Without dead ends: 682963 [2024-10-24 01:53:59,188 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2024-10-24 01:53:59,189 INFO L432 NwaCegarLoop]: 335 mSDtfsCounter, 2351 mSDsluCounter, 2287 mSDsCounter, 0 mSdLazyCounter, 194 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2351 SdHoareTripleChecker+Valid, 2622 SdHoareTripleChecker+Invalid, 194 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 194 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 01:53:59,189 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2351 Valid, 2622 Invalid, 194 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 194 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 01:53:59,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 682963 states. [2024-10-24 01:54:04,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 682963 to 256835. [2024-10-24 01:54:04,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 256835 states, 256834 states have (on average 1.427357748584689) internal successors, (366594), 256834 states have internal predecessors, (366594), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:54:05,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 256835 states to 256835 states and 366594 transitions. [2024-10-24 01:54:05,113 INFO L78 Accepts]: Start accepts. Automaton has 256835 states and 366594 transitions. Word has length 149 [2024-10-24 01:54:05,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:54:05,113 INFO L471 AbstractCegarLoop]: Abstraction has 256835 states and 366594 transitions. [2024-10-24 01:54:05,113 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 14.6) internal successors, (146), 10 states have internal predecessors, (146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:54:05,113 INFO L276 IsEmpty]: Start isEmpty. Operand 256835 states and 366594 transitions. [2024-10-24 01:54:05,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2024-10-24 01:54:05,130 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:54:05,130 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 01:54:05,130 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-10-24 01:54:05,130 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:54:05,131 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:54:05,131 INFO L85 PathProgramCache]: Analyzing trace with hash -2117606013, now seen corresponding path program 1 times [2024-10-24 01:54:05,131 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:54:05,131 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [91548027] [2024-10-24 01:54:05,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:54:05,131 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:54:05,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:54:06,059 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-10-24 01:54:06,059 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:54:06,059 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [91548027] [2024-10-24 01:54:06,060 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [91548027] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:54:06,060 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:54:06,060 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-10-24 01:54:06,061 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [361246622] [2024-10-24 01:54:06,061 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:54:06,064 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-24 01:54:06,064 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:54:06,065 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-24 01:54:06,065 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-10-24 01:54:06,065 INFO L87 Difference]: Start difference. First operand 256835 states and 366594 transitions. Second operand has 10 states, 10 states have (on average 14.4) internal successors, (144), 10 states have internal predecessors, (144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:54:08,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:54:08,536 INFO L93 Difference]: Finished difference Result 829653 states and 1189771 transitions. [2024-10-24 01:54:08,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-24 01:54:08,536 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 14.4) internal successors, (144), 10 states have internal predecessors, (144), 0 states have call successors, (0), 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 149 [2024-10-24 01:54:08,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:54:09,538 INFO L225 Difference]: With dead ends: 829653 [2024-10-24 01:54:09,538 INFO L226 Difference]: Without dead ends: 756307 [2024-10-24 01:54:09,679 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2024-10-24 01:54:09,680 INFO L432 NwaCegarLoop]: 332 mSDtfsCounter, 2600 mSDsluCounter, 2337 mSDsCounter, 0 mSdLazyCounter, 236 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2600 SdHoareTripleChecker+Valid, 2669 SdHoareTripleChecker+Invalid, 236 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 236 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 01:54:09,680 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2600 Valid, 2669 Invalid, 236 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 236 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]