./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-var-start-time.5.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a046e57d 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-var-start-time.5.1.ufo.UNBOUNDED.pals.c.v+lhb-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 2d43a579fead76cada979bbaf2912558c79980eef82c3d2143337dc895995c75 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-mul-div-a046e57-m [2024-10-12 20:23:33,622 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-12 20:23:33,688 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-12 20:23:33,693 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-12 20:23:33,695 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-12 20:23:33,719 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-12 20:23:33,719 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-12 20:23:33,719 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-12 20:23:33,720 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-12 20:23:33,721 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-12 20:23:33,722 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-12 20:23:33,722 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-12 20:23:33,722 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-12 20:23:33,723 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-12 20:23:33,724 INFO L153 SettingsManager]: * Use SBE=true [2024-10-12 20:23:33,724 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-12 20:23:33,725 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-12 20:23:33,725 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-12 20:23:33,725 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-12 20:23:33,725 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-12 20:23:33,725 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-12 20:23:33,726 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-12 20:23:33,726 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-12 20:23:33,726 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-12 20:23:33,726 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-12 20:23:33,727 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-12 20:23:33,727 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-12 20:23:33,727 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-12 20:23:33,727 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-12 20:23:33,727 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-12 20:23:33,728 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-12 20:23:33,728 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-12 20:23:33,728 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-12 20:23:33,728 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-12 20:23:33,728 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-12 20:23:33,728 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-12 20:23:33,729 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-12 20:23:33,729 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-12 20:23:33,729 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-12 20:23:33,735 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-12 20:23:33,735 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-12 20:23:33,736 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-12 20:23:33,736 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2d43a579fead76cada979bbaf2912558c79980eef82c3d2143337dc895995c75 [2024-10-12 20:23:33,956 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-12 20:23:33,984 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-12 20:23:33,987 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-12 20:23:33,988 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-12 20:23:33,988 INFO L274 PluginConnector]: CDTParser initialized [2024-10-12 20:23:33,989 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c [2024-10-12 20:23:35,309 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-12 20:23:35,796 INFO L384 CDTParser]: Found 1 translation units. [2024-10-12 20:23:35,796 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c [2024-10-12 20:23:35,827 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f7a3b2877/e8db5e0d78504be0bd897e1f0f27ec66/FLAG5f34d16ce [2024-10-12 20:23:35,864 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f7a3b2877/e8db5e0d78504be0bd897e1f0f27ec66 [2024-10-12 20:23:35,866 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-12 20:23:35,868 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-12 20:23:35,869 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-12 20:23:35,869 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-12 20:23:35,874 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-12 20:23:35,874 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 08:23:35" (1/1) ... [2024-10-12 20:23:35,875 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@245fbb3c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 08:23:35, skipping insertion in model container [2024-10-12 20:23:35,875 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 08:23:35" (1/1) ... [2024-10-12 20:23:36,050 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-12 20:23:36,413 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[19354,19367] [2024-10-12 20:23:37,305 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-12 20:23:37,321 INFO L200 MainTranslator]: Completed pre-run [2024-10-12 20:23:37,368 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-var-start-time.5.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[19354,19367] [2024-10-12 20:23:37,980 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-12 20:23:38,015 INFO L204 MainTranslator]: Completed translation [2024-10-12 20:23:38,015 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 08:23:38 WrapperNode [2024-10-12 20:23:38,015 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-12 20:23:38,016 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-12 20:23:38,016 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-12 20:23:38,016 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-12 20:23:38,022 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 08:23:38" (1/1) ... [2024-10-12 20:23:38,091 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 08:23:38" (1/1) ... [2024-10-12 20:23:38,309 INFO L138 Inliner]: procedures = 25, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 20000 [2024-10-12 20:23:38,310 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-12 20:23:38,311 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-12 20:23:38,311 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-12 20:23:38,311 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-12 20:23:38,320 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 08:23:38" (1/1) ... [2024-10-12 20:23:38,321 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 08:23:38" (1/1) ... [2024-10-12 20:23:38,368 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 08:23:38" (1/1) ... [2024-10-12 20:23:38,618 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]. [2024-10-12 20:23:38,618 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 08:23:38" (1/1) ... [2024-10-12 20:23:38,618 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 08:23:38" (1/1) ... [2024-10-12 20:23:38,824 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 08:23:38" (1/1) ... [2024-10-12 20:23:38,880 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 08:23:38" (1/1) ... [2024-10-12 20:23:38,906 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 08:23:38" (1/1) ... [2024-10-12 20:23:38,941 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 08:23:38" (1/1) ... [2024-10-12 20:23:39,008 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-12 20:23:39,010 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-12 20:23:39,010 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-12 20:23:39,011 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-12 20:23:39,012 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 08:23:38" (1/1) ... [2024-10-12 20:23:39,016 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-12 20:23:39,028 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 20:23:39,055 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) [2024-10-12 20:23:39,061 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 [2024-10-12 20:23:39,105 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-12 20:23:39,106 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-12 20:23:39,106 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-12 20:23:39,107 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-12 20:23:39,578 INFO L238 CfgBuilder]: Building ICFG [2024-10-12 20:23:39,580 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-12 20:23:45,697 INFO L? ?]: Removed 3036 outVars from TransFormulas that were not future-live. [2024-10-12 20:23:45,697 INFO L287 CfgBuilder]: Performing block encoding [2024-10-12 20:23:45,828 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-12 20:23:45,828 INFO L314 CfgBuilder]: Removed 0 assume(true) statements. [2024-10-12 20:23:45,829 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 08:23:45 BoogieIcfgContainer [2024-10-12 20:23:45,829 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-12 20:23:45,831 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-12 20:23:45,832 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-12 20:23:45,834 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-12 20:23:45,835 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.10 08:23:35" (1/3) ... [2024-10-12 20:23:45,835 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5dee35a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 08:23:45, skipping insertion in model container [2024-10-12 20:23:45,835 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 08:23:38" (2/3) ... [2024-10-12 20:23:45,836 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5dee35a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 08:23:45, skipping insertion in model container [2024-10-12 20:23:45,837 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 08:23:45" (3/3) ... [2024-10-12 20:23:45,838 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr-var-start-time.5.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c [2024-10-12 20:23:45,850 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-12 20:23:45,850 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-12 20:23:45,962 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-12 20:23:45,968 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;@7055eca7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-12 20:23:45,969 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-12 20:23:45,984 INFO L276 IsEmpty]: Start isEmpty. Operand has 2866 states, 2864 states have (on average 1.9095670391061452) internal successors, (5469), 2865 states have internal predecessors, (5469), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:23:46,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-10-12 20:23:46,014 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:23:46,014 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 20:23:46,015 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 20:23:46,019 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:23:46,019 INFO L85 PathProgramCache]: Analyzing trace with hash 1129198258, now seen corresponding path program 1 times [2024-10-12 20:23:46,025 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:23:46,026 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [961429833] [2024-10-12 20:23:46,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:23:46,026 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:23:46,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:23:46,688 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 20:23:46,689 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:23:46,689 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [961429833] [2024-10-12 20:23:46,690 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [961429833] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 20:23:46,691 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 20:23:46,691 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-12 20:23:46,692 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [349251521] [2024-10-12 20:23:46,692 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 20:23:46,696 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-12 20:23:46,697 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 20:23:46,716 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-12 20:23:46,717 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-12 20:23:46,723 INFO L87 Difference]: Start difference. First operand has 2866 states, 2864 states have (on average 1.9095670391061452) internal successors, (5469), 2865 states have internal predecessors, (5469), 0 states have call successors, (0), 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 5 states, 5 states have (on average 15.4) internal successors, (77), 4 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:23:48,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 20:23:48,114 INFO L93 Difference]: Finished difference Result 4219 states and 7946 transitions. [2024-10-12 20:23:48,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-12 20:23:48,116 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 4 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2024-10-12 20:23:48,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 20:23:48,133 INFO L225 Difference]: With dead ends: 4219 [2024-10-12 20:23:48,134 INFO L226 Difference]: Without dead ends: 2281 [2024-10-12 20:23:48,144 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 [2024-10-12 20:23:48,148 INFO L432 NwaCegarLoop]: 2653 mSDtfsCounter, 12325 mSDsluCounter, 266 mSDsCounter, 0 mSdLazyCounter, 1396 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12325 SdHoareTripleChecker+Valid, 2919 SdHoareTripleChecker+Invalid, 1422 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 1396 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-10-12 20:23:48,148 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [12325 Valid, 2919 Invalid, 1422 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 1396 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-10-12 20:23:48,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2281 states. [2024-10-12 20:23:48,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2281 to 2279. [2024-10-12 20:23:48,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2279 states, 2278 states have (on average 1.2985074626865671) internal successors, (2958), 2278 states have internal predecessors, (2958), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:23:48,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2279 states to 2279 states and 2958 transitions. [2024-10-12 20:23:48,247 INFO L78 Accepts]: Start accepts. Automaton has 2279 states and 2958 transitions. Word has length 77 [2024-10-12 20:23:48,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 20:23:48,247 INFO L471 AbstractCegarLoop]: Abstraction has 2279 states and 2958 transitions. [2024-10-12 20:23:48,247 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 4 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:23:48,247 INFO L276 IsEmpty]: Start isEmpty. Operand 2279 states and 2958 transitions. [2024-10-12 20:23:48,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-10-12 20:23:48,254 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:23:48,254 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 20:23:48,255 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-12 20:23:48,255 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 20:23:48,255 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:23:48,256 INFO L85 PathProgramCache]: Analyzing trace with hash 1837517492, now seen corresponding path program 1 times [2024-10-12 20:23:48,256 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:23:48,256 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1242856246] [2024-10-12 20:23:48,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:23:48,256 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:23:48,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:23:48,551 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 20:23:48,552 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:23:48,552 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1242856246] [2024-10-12 20:23:48,552 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1242856246] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 20:23:48,552 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 20:23:48,552 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-12 20:23:48,552 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [553149109] [2024-10-12 20:23:48,553 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 20:23:48,553 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-12 20:23:48,553 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 20:23:48,554 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-12 20:23:48,554 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 20:23:48,554 INFO L87 Difference]: Start difference. First operand 2279 states and 2958 transitions. Second operand has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:23:48,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 20:23:48,627 INFO L93 Difference]: Finished difference Result 3708 states and 4900 transitions. [2024-10-12 20:23:48,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-12 20:23:48,628 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 78 [2024-10-12 20:23:48,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 20:23:48,636 INFO L225 Difference]: With dead ends: 3708 [2024-10-12 20:23:48,636 INFO L226 Difference]: Without dead ends: 3307 [2024-10-12 20:23:48,637 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 [2024-10-12 20:23:48,638 INFO L432 NwaCegarLoop]: 3647 mSDtfsCounter, 2330 mSDsluCounter, 1587 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2330 SdHoareTripleChecker+Valid, 5234 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-12 20:23:48,638 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2330 Valid, 5234 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-12 20:23:48,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3307 states. [2024-10-12 20:23:48,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3307 to 3304. [2024-10-12 20:23:48,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3304 states, 3303 states have (on average 1.293369663941871) internal successors, (4272), 3303 states have internal predecessors, (4272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:23:48,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3304 states to 3304 states and 4272 transitions. [2024-10-12 20:23:48,680 INFO L78 Accepts]: Start accepts. Automaton has 3304 states and 4272 transitions. Word has length 78 [2024-10-12 20:23:48,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 20:23:48,681 INFO L471 AbstractCegarLoop]: Abstraction has 3304 states and 4272 transitions. [2024-10-12 20:23:48,681 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:23:48,681 INFO L276 IsEmpty]: Start isEmpty. Operand 3304 states and 4272 transitions. [2024-10-12 20:23:48,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-10-12 20:23:48,686 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:23:48,687 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 20:23:48,687 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-12 20:23:48,687 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 20:23:48,687 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:23:48,687 INFO L85 PathProgramCache]: Analyzing trace with hash 1054015582, now seen corresponding path program 1 times [2024-10-12 20:23:48,688 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:23:48,688 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [136062029] [2024-10-12 20:23:48,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:23:48,688 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:23:48,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:23:48,794 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 20:23:48,795 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:23:48,795 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [136062029] [2024-10-12 20:23:48,795 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [136062029] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 20:23:48,795 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 20:23:48,795 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-12 20:23:48,796 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [688159157] [2024-10-12 20:23:48,796 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 20:23:48,796 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-12 20:23:48,796 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 20:23:48,797 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-12 20:23:48,797 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 20:23:48,797 INFO L87 Difference]: Start difference. First operand 3304 states and 4272 transitions. Second operand has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:23:48,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 20:23:48,892 INFO L93 Difference]: Finished difference Result 4498 states and 6065 transitions. [2024-10-12 20:23:48,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-12 20:23:48,892 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 78 [2024-10-12 20:23:48,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 20:23:48,901 INFO L225 Difference]: With dead ends: 4498 [2024-10-12 20:23:48,901 INFO L226 Difference]: Without dead ends: 3872 [2024-10-12 20:23:48,902 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 [2024-10-12 20:23:48,903 INFO L432 NwaCegarLoop]: 2670 mSDtfsCounter, 1324 mSDsluCounter, 1606 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1324 SdHoareTripleChecker+Valid, 4276 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-12 20:23:48,903 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1324 Valid, 4276 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-12 20:23:48,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3872 states. [2024-10-12 20:23:48,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3872 to 3870. [2024-10-12 20:23:48,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3870 states, 3869 states have (on average 1.3176531403463427) internal successors, (5098), 3869 states have internal predecessors, (5098), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:23:48,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3870 states to 3870 states and 5098 transitions. [2024-10-12 20:23:48,943 INFO L78 Accepts]: Start accepts. Automaton has 3870 states and 5098 transitions. Word has length 78 [2024-10-12 20:23:48,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 20:23:48,944 INFO L471 AbstractCegarLoop]: Abstraction has 3870 states and 5098 transitions. [2024-10-12 20:23:48,944 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:23:48,944 INFO L276 IsEmpty]: Start isEmpty. Operand 3870 states and 5098 transitions. [2024-10-12 20:23:48,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-10-12 20:23:48,949 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:23:48,949 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 20:23:48,949 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-12 20:23:48,950 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 20:23:48,950 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:23:48,950 INFO L85 PathProgramCache]: Analyzing trace with hash -618269756, now seen corresponding path program 1 times [2024-10-12 20:23:48,950 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:23:48,950 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1829618527] [2024-10-12 20:23:48,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:23:48,950 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:23:48,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:23:49,108 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 20:23:49,112 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:23:49,112 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1829618527] [2024-10-12 20:23:49,112 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1829618527] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 20:23:49,112 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 20:23:49,113 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-12 20:23:49,113 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [914271120] [2024-10-12 20:23:49,113 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 20:23:49,113 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-12 20:23:49,113 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 20:23:49,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-12 20:23:49,114 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-12 20:23:49,114 INFO L87 Difference]: Start difference. First operand 3870 states and 5098 transitions. Second operand has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:23:50,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 20:23:50,270 INFO L93 Difference]: Finished difference Result 6296 states and 8476 transitions. [2024-10-12 20:23:50,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-12 20:23:50,271 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 78 [2024-10-12 20:23:50,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 20:23:50,280 INFO L225 Difference]: With dead ends: 6296 [2024-10-12 20:23:50,280 INFO L226 Difference]: Without dead ends: 4206 [2024-10-12 20:23:50,282 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 [2024-10-12 20:23:50,283 INFO L432 NwaCegarLoop]: 1290 mSDtfsCounter, 7107 mSDsluCounter, 155 mSDsCounter, 0 mSdLazyCounter, 1091 mSolverCounterSat, 163 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7107 SdHoareTripleChecker+Valid, 1445 SdHoareTripleChecker+Invalid, 1254 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 163 IncrementalHoareTripleChecker+Valid, 1091 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-10-12 20:23:50,283 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [7107 Valid, 1445 Invalid, 1254 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [163 Valid, 1091 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-10-12 20:23:50,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4206 states. [2024-10-12 20:23:50,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4206 to 4204. [2024-10-12 20:23:50,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4204 states, 4203 states have (on average 1.3093028788960266) internal successors, (5503), 4203 states have internal predecessors, (5503), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:23:50,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4204 states to 4204 states and 5503 transitions. [2024-10-12 20:23:50,330 INFO L78 Accepts]: Start accepts. Automaton has 4204 states and 5503 transitions. Word has length 78 [2024-10-12 20:23:50,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 20:23:50,330 INFO L471 AbstractCegarLoop]: Abstraction has 4204 states and 5503 transitions. [2024-10-12 20:23:50,330 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:23:50,330 INFO L276 IsEmpty]: Start isEmpty. Operand 4204 states and 5503 transitions. [2024-10-12 20:23:50,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-10-12 20:23:50,335 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:23:50,335 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 20:23:50,336 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-12 20:23:50,336 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 20:23:50,336 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:23:50,336 INFO L85 PathProgramCache]: Analyzing trace with hash 1256480666, now seen corresponding path program 1 times [2024-10-12 20:23:50,336 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:23:50,337 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1060288930] [2024-10-12 20:23:50,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:23:50,337 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:23:50,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:23:50,563 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 20:23:50,563 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:23:50,564 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1060288930] [2024-10-12 20:23:50,565 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1060288930] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 20:23:50,565 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 20:23:50,565 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-12 20:23:50,565 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1970796257] [2024-10-12 20:23:50,565 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 20:23:50,566 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-12 20:23:50,566 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 20:23:50,566 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-12 20:23:50,566 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 20:23:50,567 INFO L87 Difference]: Start difference. First operand 4204 states and 5503 transitions. Second operand has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:23:50,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 20:23:50,809 INFO L93 Difference]: Finished difference Result 6614 states and 9086 transitions. [2024-10-12 20:23:50,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-12 20:23:50,810 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 78 [2024-10-12 20:23:50,811 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 20:23:50,827 INFO L225 Difference]: With dead ends: 6614 [2024-10-12 20:23:50,828 INFO L226 Difference]: Without dead ends: 5260 [2024-10-12 20:23:50,832 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 [2024-10-12 20:23:50,835 INFO L432 NwaCegarLoop]: 2265 mSDtfsCounter, 1180 mSDsluCounter, 1303 mSDsCounter, 0 mSdLazyCounter, 109 mSolverCounterSat, 104 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1180 SdHoareTripleChecker+Valid, 3568 SdHoareTripleChecker+Invalid, 213 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 104 IncrementalHoareTripleChecker+Valid, 109 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-12 20:23:50,836 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1180 Valid, 3568 Invalid, 213 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [104 Valid, 109 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-12 20:23:50,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5260 states. [2024-10-12 20:23:50,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5260 to 5252. [2024-10-12 20:23:50,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5252 states, 5251 states have (on average 1.3283184155398973) internal successors, (6975), 5251 states have internal predecessors, (6975), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:23:50,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5252 states to 5252 states and 6975 transitions. [2024-10-12 20:23:50,952 INFO L78 Accepts]: Start accepts. Automaton has 5252 states and 6975 transitions. Word has length 78 [2024-10-12 20:23:50,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 20:23:50,953 INFO L471 AbstractCegarLoop]: Abstraction has 5252 states and 6975 transitions. [2024-10-12 20:23:50,953 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:23:50,954 INFO L276 IsEmpty]: Start isEmpty. Operand 5252 states and 6975 transitions. [2024-10-12 20:23:50,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-10-12 20:23:50,964 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:23:50,964 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 20:23:50,965 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-12 20:23:50,965 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 20:23:50,965 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:23:50,966 INFO L85 PathProgramCache]: Analyzing trace with hash -373138448, now seen corresponding path program 1 times [2024-10-12 20:23:50,966 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:23:50,966 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [636116625] [2024-10-12 20:23:50,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:23:50,966 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:23:51,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:23:51,166 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 20:23:51,167 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:23:51,167 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [636116625] [2024-10-12 20:23:51,167 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [636116625] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 20:23:51,167 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 20:23:51,168 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-12 20:23:51,168 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [922934428] [2024-10-12 20:23:51,168 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 20:23:51,168 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-12 20:23:51,168 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 20:23:51,169 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-12 20:23:51,169 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-12 20:23:51,169 INFO L87 Difference]: Start difference. First operand 5252 states and 6975 transitions. Second operand has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:23:51,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 20:23:51,980 INFO L93 Difference]: Finished difference Result 11315 states and 15587 transitions. [2024-10-12 20:23:51,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-12 20:23:51,981 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 78 [2024-10-12 20:23:51,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 20:23:52,009 INFO L225 Difference]: With dead ends: 11315 [2024-10-12 20:23:52,009 INFO L226 Difference]: Without dead ends: 6828 [2024-10-12 20:23:52,017 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 [2024-10-12 20:23:52,018 INFO L432 NwaCegarLoop]: 1054 mSDtfsCounter, 5751 mSDsluCounter, 214 mSDsCounter, 0 mSdLazyCounter, 794 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5751 SdHoareTripleChecker+Valid, 1268 SdHoareTripleChecker+Invalid, 801 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 794 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-10-12 20:23:52,018 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5751 Valid, 1268 Invalid, 801 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 794 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-10-12 20:23:52,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6828 states. [2024-10-12 20:23:52,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6828 to 6826. [2024-10-12 20:23:52,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6826 states, 6825 states have (on average 1.386080586080586) internal successors, (9460), 6825 states have internal predecessors, (9460), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:23:52,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6826 states to 6826 states and 9460 transitions. [2024-10-12 20:23:52,167 INFO L78 Accepts]: Start accepts. Automaton has 6826 states and 9460 transitions. Word has length 78 [2024-10-12 20:23:52,168 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 20:23:52,168 INFO L471 AbstractCegarLoop]: Abstraction has 6826 states and 9460 transitions. [2024-10-12 20:23:52,168 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:23:52,168 INFO L276 IsEmpty]: Start isEmpty. Operand 6826 states and 9460 transitions. [2024-10-12 20:23:52,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-10-12 20:23:52,179 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:23:52,179 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] [2024-10-12 20:23:52,180 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-12 20:23:52,180 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 20:23:52,180 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:23:52,180 INFO L85 PathProgramCache]: Analyzing trace with hash -1730654079, now seen corresponding path program 1 times [2024-10-12 20:23:52,180 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:23:52,181 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [273895048] [2024-10-12 20:23:52,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:23:52,181 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:23:52,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:23:52,305 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 20:23:52,306 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:23:52,306 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [273895048] [2024-10-12 20:23:52,306 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [273895048] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 20:23:52,306 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 20:23:52,306 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-12 20:23:52,307 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [101343289] [2024-10-12 20:23:52,307 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 20:23:52,307 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-12 20:23:52,307 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 20:23:52,308 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-12 20:23:52,308 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 20:23:52,308 INFO L87 Difference]: Start difference. First operand 6826 states and 9460 transitions. Second operand has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:23:52,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 20:23:52,429 INFO L93 Difference]: Finished difference Result 17071 states and 24100 transitions. [2024-10-12 20:23:52,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-12 20:23:52,430 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 0 states have call successors, (0), 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 79 [2024-10-12 20:23:52,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 20:23:52,453 INFO L225 Difference]: With dead ends: 17071 [2024-10-12 20:23:52,453 INFO L226 Difference]: Without dead ends: 11774 [2024-10-12 20:23:52,461 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 [2024-10-12 20:23:52,462 INFO L432 NwaCegarLoop]: 2305 mSDtfsCounter, 1470 mSDsluCounter, 1110 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1470 SdHoareTripleChecker+Valid, 3415 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-12 20:23:52,462 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1470 Valid, 3415 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-12 20:23:52,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11774 states. [2024-10-12 20:23:52,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11774 to 11754. [2024-10-12 20:23:52,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11754 states, 11753 states have (on average 1.3889219773674806) internal successors, (16324), 11753 states have internal predecessors, (16324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:23:52,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11754 states to 11754 states and 16324 transitions. [2024-10-12 20:23:52,742 INFO L78 Accepts]: Start accepts. Automaton has 11754 states and 16324 transitions. Word has length 79 [2024-10-12 20:23:52,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 20:23:52,743 INFO L471 AbstractCegarLoop]: Abstraction has 11754 states and 16324 transitions. [2024-10-12 20:23:52,743 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:23:52,743 INFO L276 IsEmpty]: Start isEmpty. Operand 11754 states and 16324 transitions. [2024-10-12 20:23:52,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-10-12 20:23:52,754 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:23:52,754 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] [2024-10-12 20:23:52,754 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-12 20:23:52,754 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 20:23:52,755 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:23:52,755 INFO L85 PathProgramCache]: Analyzing trace with hash 1253382368, now seen corresponding path program 1 times [2024-10-12 20:23:52,755 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:23:52,755 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [91241029] [2024-10-12 20:23:52,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:23:52,755 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:23:52,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:23:52,889 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 20:23:52,889 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:23:52,889 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [91241029] [2024-10-12 20:23:52,890 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [91241029] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 20:23:52,890 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 20:23:52,890 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-12 20:23:52,890 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1283029858] [2024-10-12 20:23:52,890 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 20:23:52,890 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-12 20:23:52,890 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 20:23:52,891 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-12 20:23:52,891 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-12 20:23:52,891 INFO L87 Difference]: Start difference. First operand 11754 states and 16324 transitions. Second operand has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:23:53,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 20:23:53,517 INFO L93 Difference]: Finished difference Result 29481 states and 41798 transitions. [2024-10-12 20:23:53,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-12 20:23:53,517 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 states have internal predecessors, (79), 0 states have call successors, (0), 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 79 [2024-10-12 20:23:53,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 20:23:53,543 INFO L225 Difference]: With dead ends: 29481 [2024-10-12 20:23:53,544 INFO L226 Difference]: Without dead ends: 18509 [2024-10-12 20:23:53,556 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 [2024-10-12 20:23:53,557 INFO L432 NwaCegarLoop]: 815 mSDtfsCounter, 4583 mSDsluCounter, 215 mSDsCounter, 0 mSdLazyCounter, 651 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4583 SdHoareTripleChecker+Valid, 1030 SdHoareTripleChecker+Invalid, 661 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 651 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-10-12 20:23:53,557 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4583 Valid, 1030 Invalid, 661 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 651 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-10-12 20:23:53,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18509 states. [2024-10-12 20:23:53,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18509 to 18507. [2024-10-12 20:23:53,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18507 states, 18506 states have (on average 1.4175402572138767) internal successors, (26233), 18506 states have internal predecessors, (26233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:23:53,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18507 states to 18507 states and 26233 transitions. [2024-10-12 20:23:53,820 INFO L78 Accepts]: Start accepts. Automaton has 18507 states and 26233 transitions. Word has length 79 [2024-10-12 20:23:53,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 20:23:53,821 INFO L471 AbstractCegarLoop]: Abstraction has 18507 states and 26233 transitions. [2024-10-12 20:23:53,821 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:23:53,821 INFO L276 IsEmpty]: Start isEmpty. Operand 18507 states and 26233 transitions. [2024-10-12 20:23:53,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-10-12 20:23:53,833 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:23:53,834 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 20:23:53,834 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-12 20:23:53,834 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 20:23:53,834 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:23:53,834 INFO L85 PathProgramCache]: Analyzing trace with hash 1054519687, now seen corresponding path program 1 times [2024-10-12 20:23:53,835 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:23:53,835 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1731500031] [2024-10-12 20:23:53,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:23:53,835 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:23:53,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:23:54,060 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 20:23:54,061 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:23:54,061 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1731500031] [2024-10-12 20:23:54,061 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1731500031] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 20:23:54,061 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 20:23:54,061 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-12 20:23:54,061 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [139990959] [2024-10-12 20:23:54,061 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 20:23:54,062 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-12 20:23:54,062 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 20:23:54,063 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-12 20:23:54,063 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 20:23:54,064 INFO L87 Difference]: Start difference. First operand 18507 states and 26233 transitions. Second operand has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:23:54,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 20:23:54,188 INFO L93 Difference]: Finished difference Result 40464 states and 57821 transitions. [2024-10-12 20:23:54,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-12 20:23:54,189 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 80 [2024-10-12 20:23:54,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 20:23:54,230 INFO L225 Difference]: With dead ends: 40464 [2024-10-12 20:23:54,230 INFO L226 Difference]: Without dead ends: 25733 [2024-10-12 20:23:54,249 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 [2024-10-12 20:23:54,250 INFO L432 NwaCegarLoop]: 1734 mSDtfsCounter, 1081 mSDsluCounter, 922 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1081 SdHoareTripleChecker+Valid, 2656 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-12 20:23:54,250 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1081 Valid, 2656 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-12 20:23:54,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25733 states. [2024-10-12 20:23:54,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25733 to 25659. [2024-10-12 20:23:54,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25659 states, 25658 states have (on average 1.3999142567620235) internal successors, (35919), 25658 states have internal predecessors, (35919), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:23:54,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25659 states to 25659 states and 35919 transitions. [2024-10-12 20:23:54,591 INFO L78 Accepts]: Start accepts. Automaton has 25659 states and 35919 transitions. Word has length 80 [2024-10-12 20:23:54,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 20:23:54,592 INFO L471 AbstractCegarLoop]: Abstraction has 25659 states and 35919 transitions. [2024-10-12 20:23:54,592 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:23:54,592 INFO L276 IsEmpty]: Start isEmpty. Operand 25659 states and 35919 transitions. [2024-10-12 20:23:54,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-10-12 20:23:54,609 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:23:54,609 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] [2024-10-12 20:23:54,609 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-12 20:23:54,609 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 20:23:54,613 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:23:54,613 INFO L85 PathProgramCache]: Analyzing trace with hash -1231479032, now seen corresponding path program 1 times [2024-10-12 20:23:54,613 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:23:54,613 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1635006648] [2024-10-12 20:23:54,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:23:54,614 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:23:54,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:23:54,790 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 20:23:54,790 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:23:54,791 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1635006648] [2024-10-12 20:23:54,791 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1635006648] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 20:23:54,791 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 20:23:54,791 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-12 20:23:54,791 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [891353019] [2024-10-12 20:23:54,791 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 20:23:54,791 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-12 20:23:54,791 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 20:23:54,792 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-12 20:23:54,792 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-12 20:23:54,792 INFO L87 Difference]: Start difference. First operand 25659 states and 35919 transitions. Second operand has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:23:55,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 20:23:55,690 INFO L93 Difference]: Finished difference Result 58979 states and 83058 transitions. [2024-10-12 20:23:55,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-12 20:23:55,690 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 0 states have call successors, (0), 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 81 [2024-10-12 20:23:55,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 20:23:55,736 INFO L225 Difference]: With dead ends: 58979 [2024-10-12 20:23:55,737 INFO L226 Difference]: Without dead ends: 34591 [2024-10-12 20:23:55,755 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 [2024-10-12 20:23:55,756 INFO L432 NwaCegarLoop]: 686 mSDtfsCounter, 3897 mSDsluCounter, 191 mSDsCounter, 0 mSdLazyCounter, 582 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3897 SdHoareTripleChecker+Valid, 877 SdHoareTripleChecker+Invalid, 609 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 582 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-10-12 20:23:55,756 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3897 Valid, 877 Invalid, 609 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 582 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-10-12 20:23:55,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34591 states. [2024-10-12 20:23:56,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34591 to 34481. [2024-10-12 20:23:56,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34481 states, 34480 states have (on average 1.4000290023201856) internal successors, (48273), 34480 states have internal predecessors, (48273), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:23:56,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34481 states to 34481 states and 48273 transitions. [2024-10-12 20:23:56,149 INFO L78 Accepts]: Start accepts. Automaton has 34481 states and 48273 transitions. Word has length 81 [2024-10-12 20:23:56,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 20:23:56,150 INFO L471 AbstractCegarLoop]: Abstraction has 34481 states and 48273 transitions. [2024-10-12 20:23:56,150 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:23:56,150 INFO L276 IsEmpty]: Start isEmpty. Operand 34481 states and 48273 transitions. [2024-10-12 20:23:56,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-10-12 20:23:56,174 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:23:56,174 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] [2024-10-12 20:23:56,175 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-12 20:23:56,175 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 20:23:56,175 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:23:56,175 INFO L85 PathProgramCache]: Analyzing trace with hash -611340285, now seen corresponding path program 1 times [2024-10-12 20:23:56,175 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:23:56,175 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [646321754] [2024-10-12 20:23:56,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:23:56,176 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:23:56,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:23:56,379 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 20:23:56,379 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:23:56,379 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [646321754] [2024-10-12 20:23:56,379 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [646321754] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 20:23:56,380 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 20:23:56,380 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-12 20:23:56,380 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [490298323] [2024-10-12 20:23:56,380 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 20:23:56,380 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-12 20:23:56,380 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 20:23:56,381 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-12 20:23:56,381 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-12 20:23:56,381 INFO L87 Difference]: Start difference. First operand 34481 states and 48273 transitions. Second operand has 7 states, 7 states have (on average 11.714285714285714) internal successors, (82), 6 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:23:57,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 20:23:57,524 INFO L93 Difference]: Finished difference Result 96268 states and 137130 transitions. [2024-10-12 20:23:57,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-12 20:23:57,525 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.714285714285714) internal successors, (82), 6 states have internal predecessors, (82), 0 states have call successors, (0), 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 82 [2024-10-12 20:23:57,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 20:23:57,663 INFO L225 Difference]: With dead ends: 96268 [2024-10-12 20:23:57,663 INFO L226 Difference]: Without dead ends: 79568 [2024-10-12 20:23:57,698 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2024-10-12 20:23:57,699 INFO L432 NwaCegarLoop]: 696 mSDtfsCounter, 4984 mSDsluCounter, 1088 mSDsCounter, 0 mSdLazyCounter, 1175 mSolverCounterSat, 157 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4984 SdHoareTripleChecker+Valid, 1784 SdHoareTripleChecker+Invalid, 1332 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 157 IncrementalHoareTripleChecker+Valid, 1175 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-10-12 20:23:57,699 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4984 Valid, 1784 Invalid, 1332 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [157 Valid, 1175 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-10-12 20:23:57,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79568 states. [2024-10-12 20:23:58,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79568 to 34793. [2024-10-12 20:23:58,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34793 states, 34792 states have (on average 1.3993159346976316) internal successors, (48685), 34792 states have internal predecessors, (48685), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:23:58,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34793 states to 34793 states and 48685 transitions. [2024-10-12 20:23:58,605 INFO L78 Accepts]: Start accepts. Automaton has 34793 states and 48685 transitions. Word has length 82 [2024-10-12 20:23:58,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 20:23:58,605 INFO L471 AbstractCegarLoop]: Abstraction has 34793 states and 48685 transitions. [2024-10-12 20:23:58,605 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.714285714285714) internal successors, (82), 6 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:23:58,606 INFO L276 IsEmpty]: Start isEmpty. Operand 34793 states and 48685 transitions. [2024-10-12 20:23:58,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-10-12 20:23:58,619 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:23:58,619 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] [2024-10-12 20:23:58,619 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-12 20:23:58,620 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 20:23:58,620 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:23:58,620 INFO L85 PathProgramCache]: Analyzing trace with hash -1224043465, now seen corresponding path program 1 times [2024-10-12 20:23:58,620 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:23:58,620 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1550427257] [2024-10-12 20:23:58,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:23:58,621 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:23:58,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:23:58,782 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 20:23:58,782 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:23:58,783 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1550427257] [2024-10-12 20:23:58,783 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1550427257] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 20:23:58,783 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 20:23:58,783 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-12 20:23:58,783 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1795235277] [2024-10-12 20:23:58,783 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 20:23:58,784 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-12 20:23:58,784 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 20:23:58,784 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-12 20:23:58,784 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-12 20:23:58,784 INFO L87 Difference]: Start difference. First operand 34793 states and 48685 transitions. Second operand has 7 states, 7 states have (on average 11.714285714285714) internal successors, (82), 6 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:23:59,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 20:23:59,970 INFO L93 Difference]: Finished difference Result 88772 states and 126258 transitions. [2024-10-12 20:23:59,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-12 20:23:59,971 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.714285714285714) internal successors, (82), 6 states have internal predecessors, (82), 0 states have call successors, (0), 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 82 [2024-10-12 20:23:59,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 20:24:00,047 INFO L225 Difference]: With dead ends: 88772 [2024-10-12 20:24:00,048 INFO L226 Difference]: Without dead ends: 72720 [2024-10-12 20:24:00,063 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2024-10-12 20:24:00,064 INFO L432 NwaCegarLoop]: 683 mSDtfsCounter, 4939 mSDsluCounter, 1076 mSDsCounter, 0 mSdLazyCounter, 1204 mSolverCounterSat, 163 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4939 SdHoareTripleChecker+Valid, 1759 SdHoareTripleChecker+Invalid, 1367 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 163 IncrementalHoareTripleChecker+Valid, 1204 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-10-12 20:24:00,064 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4939 Valid, 1759 Invalid, 1367 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [163 Valid, 1204 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-10-12 20:24:00,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72720 states. [2024-10-12 20:24:00,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72720 to 35321. [2024-10-12 20:24:00,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35321 states, 35320 states have (on average 1.3984428086070215) internal successors, (49393), 35320 states have internal predecessors, (49393), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:24:00,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35321 states to 35321 states and 49393 transitions. [2024-10-12 20:24:00,880 INFO L78 Accepts]: Start accepts. Automaton has 35321 states and 49393 transitions. Word has length 82 [2024-10-12 20:24:00,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 20:24:00,880 INFO L471 AbstractCegarLoop]: Abstraction has 35321 states and 49393 transitions. [2024-10-12 20:24:00,880 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.714285714285714) internal successors, (82), 6 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:24:00,881 INFO L276 IsEmpty]: Start isEmpty. Operand 35321 states and 49393 transitions. [2024-10-12 20:24:00,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-10-12 20:24:00,897 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:24:00,897 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] [2024-10-12 20:24:00,897 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-12 20:24:00,898 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 20:24:00,898 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:24:00,898 INFO L85 PathProgramCache]: Analyzing trace with hash 1438962269, now seen corresponding path program 1 times [2024-10-12 20:24:00,898 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:24:00,898 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1269412521] [2024-10-12 20:24:00,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:24:00,899 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:24:00,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:24:01,096 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 20:24:01,096 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:24:01,096 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1269412521] [2024-10-12 20:24:01,096 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1269412521] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 20:24:01,096 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 20:24:01,097 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-12 20:24:01,097 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [286634090] [2024-10-12 20:24:01,097 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 20:24:01,097 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-12 20:24:01,097 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 20:24:01,098 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-12 20:24:01,098 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-12 20:24:01,098 INFO L87 Difference]: Start difference. First operand 35321 states and 49393 transitions. Second operand has 7 states, 7 states have (on average 11.714285714285714) internal successors, (82), 6 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:24:02,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 20:24:02,284 INFO L93 Difference]: Finished difference Result 100963 states and 143744 transitions. [2024-10-12 20:24:02,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-12 20:24:02,284 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.714285714285714) internal successors, (82), 6 states have internal predecessors, (82), 0 states have call successors, (0), 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 82 [2024-10-12 20:24:02,285 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 20:24:02,382 INFO L225 Difference]: With dead ends: 100963 [2024-10-12 20:24:02,383 INFO L226 Difference]: Without dead ends: 87866 [2024-10-12 20:24:02,414 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2024-10-12 20:24:02,414 INFO L432 NwaCegarLoop]: 706 mSDtfsCounter, 5080 mSDsluCounter, 1106 mSDsCounter, 0 mSdLazyCounter, 1157 mSolverCounterSat, 154 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5080 SdHoareTripleChecker+Valid, 1812 SdHoareTripleChecker+Invalid, 1311 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 154 IncrementalHoareTripleChecker+Valid, 1157 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-10-12 20:24:02,415 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5080 Valid, 1812 Invalid, 1311 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [154 Valid, 1157 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-10-12 20:24:02,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87866 states. [2024-10-12 20:24:03,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87866 to 35491. [2024-10-12 20:24:03,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35491 states, 35490 states have (on average 1.397943082558467) internal successors, (49613), 35490 states have internal predecessors, (49613), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:24:03,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35491 states to 35491 states and 49613 transitions. [2024-10-12 20:24:03,269 INFO L78 Accepts]: Start accepts. Automaton has 35491 states and 49613 transitions. Word has length 82 [2024-10-12 20:24:03,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 20:24:03,270 INFO L471 AbstractCegarLoop]: Abstraction has 35491 states and 49613 transitions. [2024-10-12 20:24:03,270 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.714285714285714) internal successors, (82), 6 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:24:03,270 INFO L276 IsEmpty]: Start isEmpty. Operand 35491 states and 49613 transitions. [2024-10-12 20:24:03,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-10-12 20:24:03,285 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:24:03,285 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] [2024-10-12 20:24:03,285 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-12 20:24:03,286 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 20:24:03,286 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:24:03,286 INFO L85 PathProgramCache]: Analyzing trace with hash 1627698793, now seen corresponding path program 1 times [2024-10-12 20:24:03,286 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:24:03,287 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [306019964] [2024-10-12 20:24:03,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:24:03,287 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:24:03,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:24:03,484 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 20:24:03,484 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:24:03,484 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [306019964] [2024-10-12 20:24:03,484 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [306019964] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 20:24:03,484 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 20:24:03,485 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-12 20:24:03,485 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [569484848] [2024-10-12 20:24:03,485 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 20:24:03,485 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-12 20:24:03,485 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 20:24:03,486 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-12 20:24:03,486 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-12 20:24:03,486 INFO L87 Difference]: Start difference. First operand 35491 states and 49613 transitions. Second operand has 7 states, 7 states have (on average 11.714285714285714) internal successors, (82), 6 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:24:04,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 20:24:04,650 INFO L93 Difference]: Finished difference Result 74566 states and 105658 transitions. [2024-10-12 20:24:04,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-12 20:24:04,651 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.714285714285714) internal successors, (82), 6 states have internal predecessors, (82), 0 states have call successors, (0), 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 82 [2024-10-12 20:24:04,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 20:24:04,722 INFO L225 Difference]: With dead ends: 74566 [2024-10-12 20:24:04,723 INFO L226 Difference]: Without dead ends: 57748 [2024-10-12 20:24:04,751 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2024-10-12 20:24:04,752 INFO L432 NwaCegarLoop]: 711 mSDtfsCounter, 4662 mSDsluCounter, 998 mSDsCounter, 0 mSdLazyCounter, 1021 mSolverCounterSat, 139 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4662 SdHoareTripleChecker+Valid, 1709 SdHoareTripleChecker+Invalid, 1160 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 139 IncrementalHoareTripleChecker+Valid, 1021 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-10-12 20:24:04,752 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4662 Valid, 1709 Invalid, 1160 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [139 Valid, 1021 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-10-12 20:24:04,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57748 states. [2024-10-12 20:24:05,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57748 to 35575. [2024-10-12 20:24:05,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35575 states, 35574 states have (on average 1.3976780794962613) internal successors, (49721), 35574 states have internal predecessors, (49721), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:24:05,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35575 states to 35575 states and 49721 transitions. [2024-10-12 20:24:05,536 INFO L78 Accepts]: Start accepts. Automaton has 35575 states and 49721 transitions. Word has length 82 [2024-10-12 20:24:05,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 20:24:05,536 INFO L471 AbstractCegarLoop]: Abstraction has 35575 states and 49721 transitions. [2024-10-12 20:24:05,536 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.714285714285714) internal successors, (82), 6 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:24:05,537 INFO L276 IsEmpty]: Start isEmpty. Operand 35575 states and 49721 transitions. [2024-10-12 20:24:05,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-10-12 20:24:05,553 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:24:05,553 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] [2024-10-12 20:24:05,554 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-10-12 20:24:05,554 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 20:24:05,555 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:24:05,555 INFO L85 PathProgramCache]: Analyzing trace with hash -549007950, now seen corresponding path program 1 times [2024-10-12 20:24:05,555 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:24:05,555 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1963813000] [2024-10-12 20:24:05,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:24:05,555 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:24:05,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:24:05,706 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 20:24:05,706 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:24:05,706 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1963813000] [2024-10-12 20:24:05,706 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1963813000] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 20:24:05,706 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 20:24:05,706 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-12 20:24:05,707 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1309931531] [2024-10-12 20:24:05,707 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 20:24:05,707 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-12 20:24:05,707 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 20:24:05,707 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-12 20:24:05,707 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-12 20:24:05,708 INFO L87 Difference]: Start difference. First operand 35575 states and 49721 transitions. Second operand has 7 states, 7 states have (on average 11.714285714285714) internal successors, (82), 6 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:24:06,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 20:24:06,843 INFO L93 Difference]: Finished difference Result 81805 states and 116059 transitions. [2024-10-12 20:24:06,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-12 20:24:06,843 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.714285714285714) internal successors, (82), 6 states have internal predecessors, (82), 0 states have call successors, (0), 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 82 [2024-10-12 20:24:06,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 20:24:06,910 INFO L225 Difference]: With dead ends: 81805 [2024-10-12 20:24:06,911 INFO L226 Difference]: Without dead ends: 66845 [2024-10-12 20:24:06,926 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2024-10-12 20:24:06,927 INFO L432 NwaCegarLoop]: 645 mSDtfsCounter, 4881 mSDsluCounter, 1098 mSDsCounter, 0 mSdLazyCounter, 1360 mSolverCounterSat, 161 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4881 SdHoareTripleChecker+Valid, 1743 SdHoareTripleChecker+Invalid, 1521 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 161 IncrementalHoareTripleChecker+Valid, 1360 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-10-12 20:24:06,927 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4881 Valid, 1743 Invalid, 1521 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [161 Valid, 1360 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-10-12 20:24:06,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66845 states. [2024-10-12 20:24:07,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66845 to 35805. [2024-10-12 20:24:07,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35805 states, 35804 states have (on average 1.3976371355155848) internal successors, (50041), 35804 states have internal predecessors, (50041), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:24:07,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35805 states to 35805 states and 50041 transitions. [2024-10-12 20:24:07,622 INFO L78 Accepts]: Start accepts. Automaton has 35805 states and 50041 transitions. Word has length 82 [2024-10-12 20:24:07,622 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 20:24:07,622 INFO L471 AbstractCegarLoop]: Abstraction has 35805 states and 50041 transitions. [2024-10-12 20:24:07,622 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.714285714285714) internal successors, (82), 6 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:24:07,623 INFO L276 IsEmpty]: Start isEmpty. Operand 35805 states and 50041 transitions. [2024-10-12 20:24:07,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2024-10-12 20:24:07,640 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:24:07,640 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] [2024-10-12 20:24:07,641 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-10-12 20:24:07,641 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 20:24:07,641 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:24:07,641 INFO L85 PathProgramCache]: Analyzing trace with hash 1566606395, now seen corresponding path program 1 times [2024-10-12 20:24:07,641 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:24:07,641 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [871150191] [2024-10-12 20:24:07,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:24:07,642 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:24:07,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:24:08,237 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 20:24:08,237 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:24:08,237 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [871150191] [2024-10-12 20:24:08,238 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [871150191] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 20:24:08,238 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 20:24:08,238 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-12 20:24:08,238 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [689429641] [2024-10-12 20:24:08,238 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 20:24:08,238 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-12 20:24:08,238 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 20:24:08,239 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-12 20:24:08,239 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-10-12 20:24:08,239 INFO L87 Difference]: Start difference. First operand 35805 states and 50041 transitions. Second operand has 7 states, 7 states have (on average 11.857142857142858) internal successors, (83), 6 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:24:09,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 20:24:09,411 INFO L93 Difference]: Finished difference Result 76062 states and 108218 transitions. [2024-10-12 20:24:09,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-12 20:24:09,411 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.857142857142858) internal successors, (83), 6 states have internal predecessors, (83), 0 states have call successors, (0), 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 83 [2024-10-12 20:24:09,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 20:24:09,471 INFO L225 Difference]: With dead ends: 76062 [2024-10-12 20:24:09,471 INFO L226 Difference]: Without dead ends: 50801 [2024-10-12 20:24:09,500 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=88, Unknown=0, NotChecked=0, Total=132 [2024-10-12 20:24:09,500 INFO L432 NwaCegarLoop]: 652 mSDtfsCounter, 2280 mSDsluCounter, 1498 mSDsCounter, 0 mSdLazyCounter, 1751 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2280 SdHoareTripleChecker+Valid, 2150 SdHoareTripleChecker+Invalid, 1776 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 1751 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-10-12 20:24:09,500 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2280 Valid, 2150 Invalid, 1776 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 1751 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-10-12 20:24:09,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50801 states. [2024-10-12 20:24:09,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50801 to 34614. [2024-10-12 20:24:09,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34614 states, 34613 states have (on average 1.3977407332505127) internal successors, (48380), 34613 states have internal predecessors, (48380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:24:10,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34614 states to 34614 states and 48380 transitions. [2024-10-12 20:24:10,014 INFO L78 Accepts]: Start accepts. Automaton has 34614 states and 48380 transitions. Word has length 83 [2024-10-12 20:24:10,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 20:24:10,015 INFO L471 AbstractCegarLoop]: Abstraction has 34614 states and 48380 transitions. [2024-10-12 20:24:10,015 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.857142857142858) internal successors, (83), 6 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:24:10,015 INFO L276 IsEmpty]: Start isEmpty. Operand 34614 states and 48380 transitions. [2024-10-12 20:24:10,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2024-10-12 20:24:10,029 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:24:10,029 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] [2024-10-12 20:24:10,029 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-10-12 20:24:10,029 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 20:24:10,030 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:24:10,030 INFO L85 PathProgramCache]: Analyzing trace with hash 387359865, now seen corresponding path program 1 times [2024-10-12 20:24:10,030 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:24:10,030 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1587509625] [2024-10-12 20:24:10,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:24:10,030 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:24:10,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:24:10,397 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 20:24:10,397 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:24:10,397 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1587509625] [2024-10-12 20:24:10,397 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1587509625] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 20:24:10,397 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 20:24:10,397 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-12 20:24:10,397 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1439673532] [2024-10-12 20:24:10,397 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 20:24:10,397 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-12 20:24:10,398 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 20:24:10,398 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-12 20:24:10,398 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-10-12 20:24:10,398 INFO L87 Difference]: Start difference. First operand 34614 states and 48380 transitions. Second operand has 8 states, 8 states have (on average 10.375) internal successors, (83), 7 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:24:11,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 20:24:11,608 INFO L93 Difference]: Finished difference Result 74941 states and 106543 transitions. [2024-10-12 20:24:11,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-10-12 20:24:11,609 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.375) internal successors, (83), 7 states have internal predecessors, (83), 0 states have call successors, (0), 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 83 [2024-10-12 20:24:11,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 20:24:11,667 INFO L225 Difference]: With dead ends: 74941 [2024-10-12 20:24:11,667 INFO L226 Difference]: Without dead ends: 52460 [2024-10-12 20:24:11,694 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=80, Invalid=192, Unknown=0, NotChecked=0, Total=272 [2024-10-12 20:24:11,694 INFO L432 NwaCegarLoop]: 739 mSDtfsCounter, 2904 mSDsluCounter, 2184 mSDsCounter, 0 mSdLazyCounter, 2207 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2904 SdHoareTripleChecker+Valid, 2923 SdHoareTripleChecker+Invalid, 2244 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 2207 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-10-12 20:24:11,695 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2904 Valid, 2923 Invalid, 2244 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 2207 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-10-12 20:24:11,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52460 states. [2024-10-12 20:24:12,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52460 to 34590. [2024-10-12 20:24:12,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34590 states, 34589 states have (on average 1.3974095810806904) internal successors, (48335), 34589 states have internal predecessors, (48335), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:24:12,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34590 states to 34590 states and 48335 transitions. [2024-10-12 20:24:12,408 INFO L78 Accepts]: Start accepts. Automaton has 34590 states and 48335 transitions. Word has length 83 [2024-10-12 20:24:12,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 20:24:12,410 INFO L471 AbstractCegarLoop]: Abstraction has 34590 states and 48335 transitions. [2024-10-12 20:24:12,410 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.375) internal successors, (83), 7 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:24:12,410 INFO L276 IsEmpty]: Start isEmpty. Operand 34590 states and 48335 transitions. [2024-10-12 20:24:12,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2024-10-12 20:24:12,426 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:24:12,426 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] [2024-10-12 20:24:12,426 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-10-12 20:24:12,426 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 20:24:12,426 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:24:12,427 INFO L85 PathProgramCache]: Analyzing trace with hash 1288239662, now seen corresponding path program 1 times [2024-10-12 20:24:12,427 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:24:12,427 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1499024598] [2024-10-12 20:24:12,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:24:12,427 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:24:12,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:24:12,619 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 20:24:12,620 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:24:12,620 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1499024598] [2024-10-12 20:24:12,620 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1499024598] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 20:24:12,620 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 20:24:12,620 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-12 20:24:12,620 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [661926806] [2024-10-12 20:24:12,620 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 20:24:12,621 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-12 20:24:12,621 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 20:24:12,621 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-12 20:24:12,621 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-12 20:24:12,622 INFO L87 Difference]: Start difference. First operand 34590 states and 48335 transitions. Second operand has 7 states, 7 states have (on average 11.857142857142858) internal successors, (83), 6 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:24:13,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 20:24:13,648 INFO L93 Difference]: Finished difference Result 94741 states and 135080 transitions. [2024-10-12 20:24:13,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-12 20:24:13,649 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.857142857142858) internal successors, (83), 6 states have internal predecessors, (83), 0 states have call successors, (0), 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 83 [2024-10-12 20:24:13,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 20:24:13,760 INFO L225 Difference]: With dead ends: 94741 [2024-10-12 20:24:13,760 INFO L226 Difference]: Without dead ends: 79471 [2024-10-12 20:24:13,799 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2024-10-12 20:24:13,801 INFO L432 NwaCegarLoop]: 696 mSDtfsCounter, 4977 mSDsluCounter, 1088 mSDsCounter, 0 mSdLazyCounter, 1173 mSolverCounterSat, 157 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4977 SdHoareTripleChecker+Valid, 1784 SdHoareTripleChecker+Invalid, 1330 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 157 IncrementalHoareTripleChecker+Valid, 1173 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-10-12 20:24:13,802 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4977 Valid, 1784 Invalid, 1330 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [157 Valid, 1173 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-10-12 20:24:13,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79471 states. [2024-10-12 20:24:14,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79471 to 34665. [2024-10-12 20:24:14,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34665 states, 34664 states have (on average 1.397270943918763) internal successors, (48435), 34664 states have internal predecessors, (48435), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:24:14,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34665 states to 34665 states and 48435 transitions. [2024-10-12 20:24:14,624 INFO L78 Accepts]: Start accepts. Automaton has 34665 states and 48435 transitions. Word has length 83 [2024-10-12 20:24:14,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 20:24:14,626 INFO L471 AbstractCegarLoop]: Abstraction has 34665 states and 48435 transitions. [2024-10-12 20:24:14,626 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.857142857142858) internal successors, (83), 6 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:24:14,626 INFO L276 IsEmpty]: Start isEmpty. Operand 34665 states and 48435 transitions. [2024-10-12 20:24:14,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2024-10-12 20:24:14,646 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:24:14,646 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] [2024-10-12 20:24:14,646 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-10-12 20:24:14,646 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 20:24:14,650 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:24:14,651 INFO L85 PathProgramCache]: Analyzing trace with hash -171732020, now seen corresponding path program 1 times [2024-10-12 20:24:14,651 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:24:14,651 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1985255632] [2024-10-12 20:24:14,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:24:14,651 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:24:14,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:24:14,856 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 20:24:14,856 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:24:14,856 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1985255632] [2024-10-12 20:24:14,856 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1985255632] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 20:24:14,856 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 20:24:14,856 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-12 20:24:14,856 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [592566932] [2024-10-12 20:24:14,856 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 20:24:14,857 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-12 20:24:14,857 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 20:24:14,858 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-12 20:24:14,858 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-12 20:24:14,858 INFO L87 Difference]: Start difference. First operand 34665 states and 48435 transitions. Second operand has 7 states, 7 states have (on average 11.857142857142858) internal successors, (83), 6 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:24:15,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 20:24:15,931 INFO L93 Difference]: Finished difference Result 87190 states and 124127 transitions. [2024-10-12 20:24:15,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-12 20:24:15,931 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.857142857142858) internal successors, (83), 6 states have internal predecessors, (83), 0 states have call successors, (0), 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 83 [2024-10-12 20:24:15,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 20:24:16,015 INFO L225 Difference]: With dead ends: 87190 [2024-10-12 20:24:16,015 INFO L226 Difference]: Without dead ends: 72092 [2024-10-12 20:24:16,043 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2024-10-12 20:24:16,043 INFO L432 NwaCegarLoop]: 683 mSDtfsCounter, 4932 mSDsluCounter, 1076 mSDsCounter, 0 mSdLazyCounter, 1202 mSolverCounterSat, 163 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4932 SdHoareTripleChecker+Valid, 1759 SdHoareTripleChecker+Invalid, 1365 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 163 IncrementalHoareTripleChecker+Valid, 1202 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-10-12 20:24:16,044 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4932 Valid, 1759 Invalid, 1365 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [163 Valid, 1202 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-10-12 20:24:16,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72092 states. [2024-10-12 20:24:16,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72092 to 34779. [2024-10-12 20:24:16,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34779 states, 34778 states have (on average 1.397118868250043) internal successors, (48589), 34778 states have internal predecessors, (48589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:24:16,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34779 states to 34779 states and 48589 transitions. [2024-10-12 20:24:16,818 INFO L78 Accepts]: Start accepts. Automaton has 34779 states and 48589 transitions. Word has length 83 [2024-10-12 20:24:16,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 20:24:16,818 INFO L471 AbstractCegarLoop]: Abstraction has 34779 states and 48589 transitions. [2024-10-12 20:24:16,819 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.857142857142858) internal successors, (83), 6 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:24:16,819 INFO L276 IsEmpty]: Start isEmpty. Operand 34779 states and 48589 transitions. [2024-10-12 20:24:16,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2024-10-12 20:24:16,835 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:24:16,836 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] [2024-10-12 20:24:16,836 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-10-12 20:24:16,836 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 20:24:16,836 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:24:16,836 INFO L85 PathProgramCache]: Analyzing trace with hash -1844017358, now seen corresponding path program 1 times [2024-10-12 20:24:16,837 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:24:16,837 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [41408981] [2024-10-12 20:24:16,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:24:16,837 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:24:16,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:24:17,319 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 20:24:17,319 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:24:17,319 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [41408981] [2024-10-12 20:24:17,319 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [41408981] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 20:24:17,319 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 20:24:17,320 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-12 20:24:17,320 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1833195141] [2024-10-12 20:24:17,320 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 20:24:17,321 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-12 20:24:17,321 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 20:24:17,321 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-12 20:24:17,321 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-10-12 20:24:17,322 INFO L87 Difference]: Start difference. First operand 34779 states and 48589 transitions. Second operand has 8 states, 8 states have (on average 10.375) internal successors, (83), 7 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:24:18,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 20:24:18,779 INFO L93 Difference]: Finished difference Result 70870 states and 100719 transitions. [2024-10-12 20:24:18,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-12 20:24:18,779 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.375) internal successors, (83), 7 states have internal predecessors, (83), 0 states have call successors, (0), 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 83 [2024-10-12 20:24:18,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 20:24:18,827 INFO L225 Difference]: With dead ends: 70870 [2024-10-12 20:24:18,828 INFO L226 Difference]: Without dead ends: 47319 [2024-10-12 20:24:18,848 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=63, Invalid=147, Unknown=0, NotChecked=0, Total=210 [2024-10-12 20:24:18,848 INFO L432 NwaCegarLoop]: 718 mSDtfsCounter, 3565 mSDsluCounter, 2524 mSDsCounter, 0 mSdLazyCounter, 2104 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3565 SdHoareTripleChecker+Valid, 3242 SdHoareTripleChecker+Invalid, 2146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 2104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-10-12 20:24:18,849 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3565 Valid, 3242 Invalid, 2146 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 2104 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-10-12 20:24:18,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47319 states. [2024-10-12 20:24:19,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47319 to 34208. [2024-10-12 20:24:19,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34208 states, 34207 states have (on average 1.3976379103692227) internal successors, (47809), 34207 states have internal predecessors, (47809), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:24:19,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34208 states to 34208 states and 47809 transitions. [2024-10-12 20:24:19,278 INFO L78 Accepts]: Start accepts. Automaton has 34208 states and 47809 transitions. Word has length 83 [2024-10-12 20:24:19,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 20:24:19,279 INFO L471 AbstractCegarLoop]: Abstraction has 34208 states and 47809 transitions. [2024-10-12 20:24:19,279 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.375) internal successors, (83), 7 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:24:19,279 INFO L276 IsEmpty]: Start isEmpty. Operand 34208 states and 47809 transitions. [2024-10-12 20:24:19,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2024-10-12 20:24:19,376 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:24:19,376 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] [2024-10-12 20:24:19,376 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-10-12 20:24:19,376 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 20:24:19,376 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:24:19,377 INFO L85 PathProgramCache]: Analyzing trace with hash 1964622793, now seen corresponding path program 1 times [2024-10-12 20:24:19,377 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:24:19,377 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [287415764] [2024-10-12 20:24:19,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:24:19,378 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:24:19,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:24:19,683 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 20:24:19,684 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:24:19,684 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [287415764] [2024-10-12 20:24:19,684 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [287415764] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 20:24:19,684 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 20:24:19,684 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-12 20:24:19,684 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1790191737] [2024-10-12 20:24:19,684 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 20:24:19,685 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-12 20:24:19,685 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 20:24:19,685 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-12 20:24:19,685 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-10-12 20:24:19,685 INFO L87 Difference]: Start difference. First operand 34208 states and 47809 transitions. Second operand has 8 states, 8 states have (on average 10.375) internal successors, (83), 7 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:24:20,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 20:24:20,900 INFO L93 Difference]: Finished difference Result 75036 states and 106765 transitions. [2024-10-12 20:24:20,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-12 20:24:20,900 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.375) internal successors, (83), 7 states have internal predecessors, (83), 0 states have call successors, (0), 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 83 [2024-10-12 20:24:20,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 20:24:20,961 INFO L225 Difference]: With dead ends: 75036 [2024-10-12 20:24:20,961 INFO L226 Difference]: Without dead ends: 52479 [2024-10-12 20:24:20,987 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=147, Unknown=0, NotChecked=0, Total=210 [2024-10-12 20:24:20,987 INFO L432 NwaCegarLoop]: 720 mSDtfsCounter, 3731 mSDsluCounter, 2501 mSDsCounter, 0 mSdLazyCounter, 2259 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3731 SdHoareTripleChecker+Valid, 3221 SdHoareTripleChecker+Invalid, 2307 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 2259 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-10-12 20:24:20,988 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3731 Valid, 3221 Invalid, 2307 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 2259 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-10-12 20:24:21,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52479 states. [2024-10-12 20:24:21,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52479 to 34149. [2024-10-12 20:24:21,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34149 states, 34148 states have (on average 1.3974464097458124) internal successors, (47720), 34148 states have internal predecessors, (47720), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:24:21,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34149 states to 34149 states and 47720 transitions. [2024-10-12 20:24:21,536 INFO L78 Accepts]: Start accepts. Automaton has 34149 states and 47720 transitions. Word has length 83 [2024-10-12 20:24:21,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 20:24:21,536 INFO L471 AbstractCegarLoop]: Abstraction has 34149 states and 47720 transitions. [2024-10-12 20:24:21,536 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.375) internal successors, (83), 7 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:24:21,536 INFO L276 IsEmpty]: Start isEmpty. Operand 34149 states and 47720 transitions. [2024-10-12 20:24:21,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2024-10-12 20:24:21,549 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:24:21,549 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] [2024-10-12 20:24:21,549 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-10-12 20:24:21,550 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 20:24:21,550 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:24:21,550 INFO L85 PathProgramCache]: Analyzing trace with hash -6255838, now seen corresponding path program 1 times [2024-10-12 20:24:21,550 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:24:21,550 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1312541305] [2024-10-12 20:24:21,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:24:21,551 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:24:21,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:24:21,845 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 20:24:21,845 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:24:21,845 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1312541305] [2024-10-12 20:24:21,845 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1312541305] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 20:24:21,845 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 20:24:21,845 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-12 20:24:21,845 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [622650857] [2024-10-12 20:24:21,845 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 20:24:21,846 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-12 20:24:21,846 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 20:24:21,846 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-12 20:24:21,846 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-10-12 20:24:21,846 INFO L87 Difference]: Start difference. First operand 34149 states and 47720 transitions. Second operand has 8 states, 8 states have (on average 10.375) internal successors, (83), 7 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:24:22,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 20:24:22,944 INFO L93 Difference]: Finished difference Result 75187 states and 107000 transitions. [2024-10-12 20:24:22,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-10-12 20:24:22,944 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.375) internal successors, (83), 7 states have internal predecessors, (83), 0 states have call successors, (0), 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 83 [2024-10-12 20:24:22,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 20:24:23,005 INFO L225 Difference]: With dead ends: 75187 [2024-10-12 20:24:23,005 INFO L226 Difference]: Without dead ends: 52582 [2024-10-12 20:24:23,031 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=80, Invalid=192, Unknown=0, NotChecked=0, Total=272 [2024-10-12 20:24:23,032 INFO L432 NwaCegarLoop]: 766 mSDtfsCounter, 4229 mSDsluCounter, 2261 mSDsCounter, 0 mSdLazyCounter, 1992 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4229 SdHoareTripleChecker+Valid, 3027 SdHoareTripleChecker+Invalid, 2037 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 1992 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-10-12 20:24:23,032 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4229 Valid, 3027 Invalid, 2037 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 1992 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-10-12 20:24:23,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52582 states. [2024-10-12 20:24:23,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52582 to 34066. [2024-10-12 20:24:23,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34066 states, 34065 states have (on average 1.3972992807867313) internal successors, (47599), 34065 states have internal predecessors, (47599), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:24:23,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34066 states to 34066 states and 47599 transitions. [2024-10-12 20:24:23,585 INFO L78 Accepts]: Start accepts. Automaton has 34066 states and 47599 transitions. Word has length 83 [2024-10-12 20:24:23,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 20:24:23,585 INFO L471 AbstractCegarLoop]: Abstraction has 34066 states and 47599 transitions. [2024-10-12 20:24:23,585 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.375) internal successors, (83), 7 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:24:23,585 INFO L276 IsEmpty]: Start isEmpty. Operand 34066 states and 47599 transitions. [2024-10-12 20:24:23,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2024-10-12 20:24:23,599 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:24:23,600 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] [2024-10-12 20:24:23,600 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-10-12 20:24:23,600 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 20:24:23,600 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:24:23,600 INFO L85 PathProgramCache]: Analyzing trace with hash -430941920, now seen corresponding path program 1 times [2024-10-12 20:24:23,601 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:24:23,601 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [878172754] [2024-10-12 20:24:23,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:24:23,601 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:24:23,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:24:23,749 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 20:24:23,749 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:24:23,749 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [878172754] [2024-10-12 20:24:23,749 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [878172754] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 20:24:23,749 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 20:24:23,749 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-12 20:24:23,749 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [417763854] [2024-10-12 20:24:23,749 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 20:24:23,750 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-12 20:24:23,750 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 20:24:23,750 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-12 20:24:23,750 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-12 20:24:23,750 INFO L87 Difference]: Start difference. First operand 34066 states and 47599 transitions. Second operand has 7 states, 7 states have (on average 11.857142857142858) internal successors, (83), 6 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:24:24,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 20:24:24,667 INFO L93 Difference]: Finished difference Result 86533 states and 123212 transitions. [2024-10-12 20:24:24,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-12 20:24:24,668 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.857142857142858) internal successors, (83), 6 states have internal predecessors, (83), 0 states have call successors, (0), 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 83 [2024-10-12 20:24:24,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 20:24:24,749 INFO L225 Difference]: With dead ends: 86533 [2024-10-12 20:24:24,749 INFO L226 Difference]: Without dead ends: 71395 [2024-10-12 20:24:24,779 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2024-10-12 20:24:24,780 INFO L432 NwaCegarLoop]: 683 mSDtfsCounter, 4914 mSDsluCounter, 1076 mSDsCounter, 0 mSdLazyCounter, 1194 mSolverCounterSat, 163 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4914 SdHoareTripleChecker+Valid, 1759 SdHoareTripleChecker+Invalid, 1357 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 163 IncrementalHoareTripleChecker+Valid, 1194 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-10-12 20:24:24,780 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4914 Valid, 1759 Invalid, 1357 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [163 Valid, 1194 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-10-12 20:24:24,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71395 states. [2024-10-12 20:24:25,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71395 to 34171. [2024-10-12 20:24:25,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34171 states, 34170 states have (on average 1.3971027216856893) internal successors, (47739), 34170 states have internal predecessors, (47739), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:24:25,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34171 states to 34171 states and 47739 transitions. [2024-10-12 20:24:25,700 INFO L78 Accepts]: Start accepts. Automaton has 34171 states and 47739 transitions. Word has length 83 [2024-10-12 20:24:25,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 20:24:25,700 INFO L471 AbstractCegarLoop]: Abstraction has 34171 states and 47739 transitions. [2024-10-12 20:24:25,700 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.857142857142858) internal successors, (83), 6 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:24:25,700 INFO L276 IsEmpty]: Start isEmpty. Operand 34171 states and 47739 transitions. [2024-10-12 20:24:25,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-10-12 20:24:25,717 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:24:25,717 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] [2024-10-12 20:24:25,717 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-10-12 20:24:25,717 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 20:24:25,718 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:24:25,718 INFO L85 PathProgramCache]: Analyzing trace with hash 2041320560, now seen corresponding path program 1 times [2024-10-12 20:24:25,718 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:24:25,718 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1738777049] [2024-10-12 20:24:25,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:24:25,719 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:24:25,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:24:26,548 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 20:24:26,548 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:24:26,548 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1738777049] [2024-10-12 20:24:26,548 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1738777049] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 20:24:26,548 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 20:24:26,548 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-10-12 20:24:26,549 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [188539346] [2024-10-12 20:24:26,549 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 20:24:26,549 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-12 20:24:26,550 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 20:24:26,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-12 20:24:26,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2024-10-12 20:24:26,550 INFO L87 Difference]: Start difference. First operand 34171 states and 47739 transitions. Second operand has 12 states, 12 states have (on average 7.0) internal successors, (84), 11 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:24:27,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 20:24:27,484 INFO L93 Difference]: Finished difference Result 81569 states and 116579 transitions. [2024-10-12 20:24:27,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-12 20:24:27,484 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 7.0) internal successors, (84), 11 states have internal predecessors, (84), 0 states have call successors, (0), 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 84 [2024-10-12 20:24:27,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 20:24:27,550 INFO L225 Difference]: With dead ends: 81569 [2024-10-12 20:24:27,551 INFO L226 Difference]: Without dead ends: 58437 [2024-10-12 20:24:27,580 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=131, Invalid=375, Unknown=0, NotChecked=0, Total=506 [2024-10-12 20:24:27,580 INFO L432 NwaCegarLoop]: 1069 mSDtfsCounter, 5428 mSDsluCounter, 4353 mSDsCounter, 0 mSdLazyCounter, 997 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5428 SdHoareTripleChecker+Valid, 5422 SdHoareTripleChecker+Invalid, 1040 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 997 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-10-12 20:24:27,581 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5428 Valid, 5422 Invalid, 1040 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 997 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-10-12 20:24:27,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58437 states. [2024-10-12 20:24:28,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58437 to 33436. [2024-10-12 20:24:28,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33436 states, 33435 states have (on average 1.3996410946612832) internal successors, (46797), 33435 states have internal predecessors, (46797), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:24:28,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33436 states to 33436 states and 46797 transitions. [2024-10-12 20:24:28,270 INFO L78 Accepts]: Start accepts. Automaton has 33436 states and 46797 transitions. Word has length 84 [2024-10-12 20:24:28,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 20:24:28,270 INFO L471 AbstractCegarLoop]: Abstraction has 33436 states and 46797 transitions. [2024-10-12 20:24:28,271 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 7.0) internal successors, (84), 11 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:24:28,271 INFO L276 IsEmpty]: Start isEmpty. Operand 33436 states and 46797 transitions. [2024-10-12 20:24:28,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-10-12 20:24:28,284 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:24:28,284 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] [2024-10-12 20:24:28,284 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-10-12 20:24:28,284 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 20:24:28,284 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:24:28,285 INFO L85 PathProgramCache]: Analyzing trace with hash -2002596814, now seen corresponding path program 1 times [2024-10-12 20:24:28,285 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:24:28,285 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2002113515] [2024-10-12 20:24:28,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:24:28,285 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:24:28,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:24:28,422 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 20:24:28,422 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:24:28,422 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2002113515] [2024-10-12 20:24:28,423 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2002113515] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 20:24:28,423 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 20:24:28,423 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-12 20:24:28,423 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [870121546] [2024-10-12 20:24:28,423 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 20:24:28,423 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-12 20:24:28,423 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 20:24:28,424 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-12 20:24:28,424 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-12 20:24:28,424 INFO L87 Difference]: Start difference. First operand 33436 states and 46797 transitions. Second operand has 7 states, 7 states have (on average 12.0) internal successors, (84), 6 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:24:29,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 20:24:29,564 INFO L93 Difference]: Finished difference Result 79234 states and 112568 transitions. [2024-10-12 20:24:29,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-12 20:24:29,564 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.0) internal successors, (84), 6 states have internal predecessors, (84), 0 states have call successors, (0), 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 84 [2024-10-12 20:24:29,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 20:24:29,635 INFO L225 Difference]: With dead ends: 79234 [2024-10-12 20:24:29,635 INFO L226 Difference]: Without dead ends: 64274 [2024-10-12 20:24:29,656 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2024-10-12 20:24:29,657 INFO L432 NwaCegarLoop]: 638 mSDtfsCounter, 4796 mSDsluCounter, 1091 mSDsCounter, 0 mSdLazyCounter, 1330 mSolverCounterSat, 156 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4796 SdHoareTripleChecker+Valid, 1729 SdHoareTripleChecker+Invalid, 1486 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 156 IncrementalHoareTripleChecker+Valid, 1330 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-10-12 20:24:29,657 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4796 Valid, 1729 Invalid, 1486 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [156 Valid, 1330 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-10-12 20:24:29,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64274 states. [2024-10-12 20:24:30,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64274 to 33683. [2024-10-12 20:24:30,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33683 states, 33682 states have (on average 1.3996199750608633) internal successors, (47142), 33682 states have internal predecessors, (47142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:24:30,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33683 states to 33683 states and 47142 transitions. [2024-10-12 20:24:30,516 INFO L78 Accepts]: Start accepts. Automaton has 33683 states and 47142 transitions. Word has length 84 [2024-10-12 20:24:30,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 20:24:30,517 INFO L471 AbstractCegarLoop]: Abstraction has 33683 states and 47142 transitions. [2024-10-12 20:24:30,517 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.0) internal successors, (84), 6 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:24:30,517 INFO L276 IsEmpty]: Start isEmpty. Operand 33683 states and 47142 transitions. [2024-10-12 20:24:30,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-10-12 20:24:30,535 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:24:30,536 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] [2024-10-12 20:24:30,536 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-10-12 20:24:30,536 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 20:24:30,536 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:24:30,537 INFO L85 PathProgramCache]: Analyzing trace with hash -2066696383, now seen corresponding path program 1 times [2024-10-12 20:24:30,537 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:24:30,537 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [267182610] [2024-10-12 20:24:30,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:24:30,537 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:24:30,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:24:31,164 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 20:24:31,165 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:24:31,165 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [267182610] [2024-10-12 20:24:31,166 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [267182610] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 20:24:31,166 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 20:24:31,166 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-10-12 20:24:31,166 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [171732794] [2024-10-12 20:24:31,166 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 20:24:31,166 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-12 20:24:31,167 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 20:24:31,167 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-12 20:24:31,167 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2024-10-12 20:24:31,168 INFO L87 Difference]: Start difference. First operand 33683 states and 47142 transitions. Second operand has 12 states, 12 states have (on average 7.0) internal successors, (84), 11 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:24:32,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 20:24:32,087 INFO L93 Difference]: Finished difference Result 80972 states and 115883 transitions. [2024-10-12 20:24:32,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-12 20:24:32,088 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 7.0) internal successors, (84), 11 states have internal predecessors, (84), 0 states have call successors, (0), 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 84 [2024-10-12 20:24:32,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 20:24:32,157 INFO L225 Difference]: With dead ends: 80972 [2024-10-12 20:24:32,158 INFO L226 Difference]: Without dead ends: 57321 [2024-10-12 20:24:32,189 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=132, Invalid=374, Unknown=0, NotChecked=0, Total=506 [2024-10-12 20:24:32,189 INFO L432 NwaCegarLoop]: 1099 mSDtfsCounter, 5191 mSDsluCounter, 3985 mSDsCounter, 0 mSdLazyCounter, 701 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5191 SdHoareTripleChecker+Valid, 5084 SdHoareTripleChecker+Invalid, 740 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 701 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-12 20:24:32,190 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5191 Valid, 5084 Invalid, 740 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 701 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-12 20:24:32,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57321 states. [2024-10-12 20:24:32,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57321 to 32331. [2024-10-12 20:24:32,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32331 states, 32330 states have (on average 1.4034642746674915) internal successors, (45374), 32330 states have internal predecessors, (45374), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:24:32,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32331 states to 32331 states and 45374 transitions. [2024-10-12 20:24:32,978 INFO L78 Accepts]: Start accepts. Automaton has 32331 states and 45374 transitions. Word has length 84 [2024-10-12 20:24:32,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 20:24:32,978 INFO L471 AbstractCegarLoop]: Abstraction has 32331 states and 45374 transitions. [2024-10-12 20:24:32,978 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 7.0) internal successors, (84), 11 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:24:32,978 INFO L276 IsEmpty]: Start isEmpty. Operand 32331 states and 45374 transitions. [2024-10-12 20:24:32,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-10-12 20:24:32,992 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:24:32,992 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] [2024-10-12 20:24:32,992 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-10-12 20:24:32,992 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 20:24:32,993 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:24:32,993 INFO L85 PathProgramCache]: Analyzing trace with hash -1802094322, now seen corresponding path program 1 times [2024-10-12 20:24:32,993 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:24:32,993 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1349332586] [2024-10-12 20:24:32,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:24:32,994 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:24:33,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:24:33,625 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 20:24:33,625 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:24:33,625 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1349332586] [2024-10-12 20:24:33,625 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1349332586] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 20:24:33,625 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 20:24:33,625 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-10-12 20:24:33,625 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1463207276] [2024-10-12 20:24:33,626 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 20:24:33,626 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-12 20:24:33,626 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 20:24:33,626 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-12 20:24:33,626 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2024-10-12 20:24:33,627 INFO L87 Difference]: Start difference. First operand 32331 states and 45374 transitions. Second operand has 12 states, 12 states have (on average 7.0) internal successors, (84), 11 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:24:35,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 20:24:35,268 INFO L93 Difference]: Finished difference Result 107782 states and 154826 transitions. [2024-10-12 20:24:35,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-10-12 20:24:35,269 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 7.0) internal successors, (84), 11 states have internal predecessors, (84), 0 states have call successors, (0), 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 84 [2024-10-12 20:24:35,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 20:24:35,365 INFO L225 Difference]: With dead ends: 107782 [2024-10-12 20:24:35,365 INFO L226 Difference]: Without dead ends: 85331 [2024-10-12 20:24:35,404 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=164, Invalid=486, Unknown=0, NotChecked=0, Total=650 [2024-10-12 20:24:35,404 INFO L432 NwaCegarLoop]: 931 mSDtfsCounter, 7748 mSDsluCounter, 5794 mSDsCounter, 0 mSdLazyCounter, 2245 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7748 SdHoareTripleChecker+Valid, 6725 SdHoareTripleChecker+Invalid, 2277 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 2245 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-10-12 20:24:35,404 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [7748 Valid, 6725 Invalid, 2277 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 2245 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-10-12 20:24:35,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85331 states. [2024-10-12 20:24:36,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85331 to 32355. [2024-10-12 20:24:36,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32355 states, 32354 states have (on average 1.4035358842801509) internal successors, (45410), 32354 states have internal predecessors, (45410), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:24:36,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32355 states to 32355 states and 45410 transitions. [2024-10-12 20:24:36,107 INFO L78 Accepts]: Start accepts. Automaton has 32355 states and 45410 transitions. Word has length 84 [2024-10-12 20:24:36,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 20:24:36,107 INFO L471 AbstractCegarLoop]: Abstraction has 32355 states and 45410 transitions. [2024-10-12 20:24:36,107 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 7.0) internal successors, (84), 11 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:24:36,108 INFO L276 IsEmpty]: Start isEmpty. Operand 32355 states and 45410 transitions. [2024-10-12 20:24:36,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-10-12 20:24:36,120 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:24:36,120 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] [2024-10-12 20:24:36,120 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-10-12 20:24:36,120 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 20:24:36,121 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:24:36,121 INFO L85 PathProgramCache]: Analyzing trace with hash -1230914817, now seen corresponding path program 1 times [2024-10-12 20:24:36,121 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:24:36,121 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1434591592] [2024-10-12 20:24:36,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:24:36,121 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:24:36,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:24:36,489 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 20:24:36,489 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:24:36,489 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1434591592] [2024-10-12 20:24:36,489 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1434591592] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 20:24:36,489 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 20:24:36,490 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-10-12 20:24:36,490 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [192159131] [2024-10-12 20:24:36,490 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 20:24:36,490 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-10-12 20:24:36,490 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 20:24:36,490 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-10-12 20:24:36,490 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2024-10-12 20:24:36,490 INFO L87 Difference]: Start difference. First operand 32355 states and 45410 transitions. Second operand has 11 states, 11 states have (on average 7.636363636363637) internal successors, (84), 10 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:24:38,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 20:24:38,228 INFO L93 Difference]: Finished difference Result 72828 states and 103669 transitions. [2024-10-12 20:24:38,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-12 20:24:38,228 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 7.636363636363637) internal successors, (84), 10 states have internal predecessors, (84), 0 states have call successors, (0), 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 84 [2024-10-12 20:24:38,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 20:24:38,287 INFO L225 Difference]: With dead ends: 72828 [2024-10-12 20:24:38,288 INFO L226 Difference]: Without dead ends: 50361 [2024-10-12 20:24:38,315 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=124, Invalid=338, Unknown=0, NotChecked=0, Total=462 [2024-10-12 20:24:38,316 INFO L432 NwaCegarLoop]: 685 mSDtfsCounter, 2649 mSDsluCounter, 2984 mSDsCounter, 0 mSdLazyCounter, 2643 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2649 SdHoareTripleChecker+Valid, 3669 SdHoareTripleChecker+Invalid, 2687 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 2643 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-10-12 20:24:38,316 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2649 Valid, 3669 Invalid, 2687 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 2643 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-10-12 20:24:38,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50361 states. [2024-10-12 20:24:38,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50361 to 32403. [2024-10-12 20:24:38,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32403 states, 32402 states have (on average 1.403586198382816) internal successors, (45479), 32402 states have internal predecessors, (45479), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:24:38,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32403 states to 32403 states and 45479 transitions. [2024-10-12 20:24:38,938 INFO L78 Accepts]: Start accepts. Automaton has 32403 states and 45479 transitions. Word has length 84 [2024-10-12 20:24:38,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 20:24:38,939 INFO L471 AbstractCegarLoop]: Abstraction has 32403 states and 45479 transitions. [2024-10-12 20:24:38,939 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 7.636363636363637) internal successors, (84), 10 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:24:38,939 INFO L276 IsEmpty]: Start isEmpty. Operand 32403 states and 45479 transitions. [2024-10-12 20:24:38,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-10-12 20:24:38,954 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:24:38,954 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] [2024-10-12 20:24:38,954 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-10-12 20:24:38,955 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 20:24:38,955 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:24:38,955 INFO L85 PathProgramCache]: Analyzing trace with hash -3353923, now seen corresponding path program 1 times [2024-10-12 20:24:38,955 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:24:38,955 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1024767373] [2024-10-12 20:24:38,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:24:38,956 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:24:39,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:24:40,044 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 20:24:40,044 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:24:40,044 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1024767373] [2024-10-12 20:24:40,044 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1024767373] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 20:24:40,045 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 20:24:40,045 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2024-10-12 20:24:40,045 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1540026018] [2024-10-12 20:24:40,045 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 20:24:40,045 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-10-12 20:24:40,045 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 20:24:40,046 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-10-12 20:24:40,046 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=299, Unknown=0, NotChecked=0, Total=342 [2024-10-12 20:24:40,046 INFO L87 Difference]: Start difference. First operand 32403 states and 45479 transitions. Second operand has 19 states, 19 states have (on average 4.421052631578948) internal successors, (84), 18 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:24:42,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 20:24:42,602 INFO L93 Difference]: Finished difference Result 102875 states and 147456 transitions. [2024-10-12 20:24:42,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-10-12 20:24:42,603 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 4.421052631578948) internal successors, (84), 18 states have internal predecessors, (84), 0 states have call successors, (0), 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 84 [2024-10-12 20:24:42,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 20:24:42,689 INFO L225 Difference]: With dead ends: 102875 [2024-10-12 20:24:42,689 INFO L226 Difference]: Without dead ends: 80221 [2024-10-12 20:24:42,724 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 220 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=329, Invalid=1231, Unknown=0, NotChecked=0, Total=1560 [2024-10-12 20:24:42,724 INFO L432 NwaCegarLoop]: 1060 mSDtfsCounter, 9127 mSDsluCounter, 10095 mSDsCounter, 0 mSdLazyCounter, 2171 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9127 SdHoareTripleChecker+Valid, 11155 SdHoareTripleChecker+Invalid, 2211 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 2171 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-10-12 20:24:42,725 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [9127 Valid, 11155 Invalid, 2211 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 2171 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-10-12 20:24:42,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80221 states. [2024-10-12 20:24:43,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80221 to 32188. [2024-10-12 20:24:43,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32188 states, 32187 states have (on average 1.4037033584987728) internal successors, (45181), 32187 states have internal predecessors, (45181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:24:43,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32188 states to 32188 states and 45181 transitions. [2024-10-12 20:24:43,328 INFO L78 Accepts]: Start accepts. Automaton has 32188 states and 45181 transitions. Word has length 84 [2024-10-12 20:24:43,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 20:24:43,328 INFO L471 AbstractCegarLoop]: Abstraction has 32188 states and 45181 transitions. [2024-10-12 20:24:43,328 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 4.421052631578948) internal successors, (84), 18 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:24:43,328 INFO L276 IsEmpty]: Start isEmpty. Operand 32188 states and 45181 transitions. [2024-10-12 20:24:43,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-10-12 20:24:43,340 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:24:43,340 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] [2024-10-12 20:24:43,340 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-10-12 20:24:43,341 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 20:24:43,341 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:24:43,341 INFO L85 PathProgramCache]: Analyzing trace with hash -448533167, now seen corresponding path program 1 times [2024-10-12 20:24:43,341 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:24:43,341 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [994283846] [2024-10-12 20:24:43,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:24:43,342 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:24:43,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:24:43,410 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 20:24:43,411 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:24:43,411 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [994283846] [2024-10-12 20:24:43,411 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [994283846] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 20:24:43,411 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 20:24:43,411 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-12 20:24:43,411 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1181259909] [2024-10-12 20:24:43,411 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 20:24:43,411 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-12 20:24:43,411 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 20:24:43,412 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-12 20:24:43,412 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 20:24:43,412 INFO L87 Difference]: Start difference. First operand 32188 states and 45181 transitions. Second operand has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:24:43,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 20:24:43,506 INFO L93 Difference]: Finished difference Result 44978 states and 63441 transitions. [2024-10-12 20:24:43,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-12 20:24:43,507 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 0 states have call successors, (0), 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 84 [2024-10-12 20:24:43,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 20:24:43,537 INFO L225 Difference]: With dead ends: 44978 [2024-10-12 20:24:43,537 INFO L226 Difference]: Without dead ends: 32190 [2024-10-12 20:24:43,553 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 [2024-10-12 20:24:43,553 INFO L432 NwaCegarLoop]: 1224 mSDtfsCounter, 688 mSDsluCounter, 885 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 688 SdHoareTripleChecker+Valid, 2109 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-12 20:24:43,554 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [688 Valid, 2109 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-12 20:24:43,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32190 states. [2024-10-12 20:24:43,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32190 to 32188. [2024-10-12 20:24:43,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32188 states, 32187 states have (on average 1.3923633765184702) internal successors, (44816), 32187 states have internal predecessors, (44816), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:24:43,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32188 states to 32188 states and 44816 transitions. [2024-10-12 20:24:43,857 INFO L78 Accepts]: Start accepts. Automaton has 32188 states and 44816 transitions. Word has length 84 [2024-10-12 20:24:43,857 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 20:24:43,858 INFO L471 AbstractCegarLoop]: Abstraction has 32188 states and 44816 transitions. [2024-10-12 20:24:43,858 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:24:43,858 INFO L276 IsEmpty]: Start isEmpty. Operand 32188 states and 44816 transitions. [2024-10-12 20:24:43,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-10-12 20:24:43,870 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:24:43,870 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] [2024-10-12 20:24:43,870 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-10-12 20:24:43,870 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 20:24:43,870 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:24:43,871 INFO L85 PathProgramCache]: Analyzing trace with hash -1757562269, now seen corresponding path program 1 times [2024-10-12 20:24:43,871 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:24:43,871 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1305895761] [2024-10-12 20:24:43,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:24:43,871 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:24:43,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:24:44,550 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 20:24:44,550 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:24:44,550 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1305895761] [2024-10-12 20:24:44,551 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1305895761] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 20:24:44,551 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 20:24:44,551 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-10-12 20:24:44,551 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2056790779] [2024-10-12 20:24:44,551 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 20:24:44,551 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-12 20:24:44,551 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 20:24:44,552 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-12 20:24:44,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2024-10-12 20:24:44,552 INFO L87 Difference]: Start difference. First operand 32188 states and 44816 transitions. Second operand has 12 states, 12 states have (on average 7.0) internal successors, (84), 11 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:24:45,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 20:24:45,247 INFO L93 Difference]: Finished difference Result 53911 states and 76011 transitions. [2024-10-12 20:24:45,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-10-12 20:24:45,248 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 7.0) internal successors, (84), 11 states have internal predecessors, (84), 0 states have call successors, (0), 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 84 [2024-10-12 20:24:45,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 20:24:45,297 INFO L225 Difference]: With dead ends: 53911 [2024-10-12 20:24:45,297 INFO L226 Difference]: Without dead ends: 42313 [2024-10-12 20:24:45,318 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=111, Invalid=309, Unknown=0, NotChecked=0, Total=420 [2024-10-12 20:24:45,319 INFO L432 NwaCegarLoop]: 938 mSDtfsCounter, 4935 mSDsluCounter, 3983 mSDsCounter, 0 mSdLazyCounter, 614 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4935 SdHoareTripleChecker+Valid, 4921 SdHoareTripleChecker+Invalid, 651 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 614 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-12 20:24:45,319 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4935 Valid, 4921 Invalid, 651 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 614 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-12 20:24:45,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42313 states. [2024-10-12 20:24:45,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42313 to 31932. [2024-10-12 20:24:45,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31932 states, 31931 states have (on average 1.392095455826626) internal successors, (44451), 31931 states have internal predecessors, (44451), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:24:45,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31932 states to 31932 states and 44451 transitions. [2024-10-12 20:24:45,784 INFO L78 Accepts]: Start accepts. Automaton has 31932 states and 44451 transitions. Word has length 84 [2024-10-12 20:24:45,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 20:24:45,784 INFO L471 AbstractCegarLoop]: Abstraction has 31932 states and 44451 transitions. [2024-10-12 20:24:45,784 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 7.0) internal successors, (84), 11 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:24:45,784 INFO L276 IsEmpty]: Start isEmpty. Operand 31932 states and 44451 transitions. [2024-10-12 20:24:45,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-10-12 20:24:45,797 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:24:45,797 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 20:24:45,797 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2024-10-12 20:24:45,797 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 20:24:45,798 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:24:45,798 INFO L85 PathProgramCache]: Analyzing trace with hash 1606452357, now seen corresponding path program 1 times [2024-10-12 20:24:45,798 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:24:45,798 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1376004365] [2024-10-12 20:24:45,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:24:45,798 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:24:45,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:24:45,867 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 20:24:45,867 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:24:45,867 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1376004365] [2024-10-12 20:24:45,867 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1376004365] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 20:24:45,868 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 20:24:45,868 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-12 20:24:45,868 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1187705827] [2024-10-12 20:24:45,868 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 20:24:45,868 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-12 20:24:45,868 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 20:24:45,869 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-12 20:24:45,869 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 20:24:45,869 INFO L87 Difference]: Start difference. First operand 31932 states and 44451 transitions. Second operand has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:24:46,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 20:24:46,014 INFO L93 Difference]: Finished difference Result 51151 states and 71739 transitions. [2024-10-12 20:24:46,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-12 20:24:46,015 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 85 [2024-10-12 20:24:46,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 20:24:46,052 INFO L225 Difference]: With dead ends: 51151 [2024-10-12 20:24:46,052 INFO L226 Difference]: Without dead ends: 36854 [2024-10-12 20:24:46,068 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 [2024-10-12 20:24:46,068 INFO L432 NwaCegarLoop]: 981 mSDtfsCounter, 927 mSDsluCounter, 244 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 927 SdHoareTripleChecker+Valid, 1225 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-12 20:24:46,069 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [927 Valid, 1225 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-12 20:24:46,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36854 states. [2024-10-12 20:24:46,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36854 to 30286. [2024-10-12 20:24:46,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30286 states, 30285 states have (on average 1.3977876836717846) internal successors, (42332), 30285 states have internal predecessors, (42332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:24:46,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30286 states to 30286 states and 42332 transitions. [2024-10-12 20:24:46,378 INFO L78 Accepts]: Start accepts. Automaton has 30286 states and 42332 transitions. Word has length 85 [2024-10-12 20:24:46,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 20:24:46,378 INFO L471 AbstractCegarLoop]: Abstraction has 30286 states and 42332 transitions. [2024-10-12 20:24:46,379 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:24:46,379 INFO L276 IsEmpty]: Start isEmpty. Operand 30286 states and 42332 transitions. [2024-10-12 20:24:46,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-10-12 20:24:46,389 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:24:46,389 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 20:24:46,389 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2024-10-12 20:24:46,390 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 20:24:46,390 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:24:46,390 INFO L85 PathProgramCache]: Analyzing trace with hash -1888098419, now seen corresponding path program 1 times [2024-10-12 20:24:46,390 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:24:46,390 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [246236608] [2024-10-12 20:24:46,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:24:46,390 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:24:46,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:24:46,732 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 20:24:46,732 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:24:46,733 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [246236608] [2024-10-12 20:24:46,733 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [246236608] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 20:24:46,733 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 20:24:46,733 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-12 20:24:46,733 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2146902907] [2024-10-12 20:24:46,733 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 20:24:46,733 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-12 20:24:46,733 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 20:24:46,734 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-12 20:24:46,734 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-10-12 20:24:46,734 INFO L87 Difference]: Start difference. First operand 30286 states and 42332 transitions. Second operand has 8 states, 8 states have (on average 10.625) internal successors, (85), 7 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:24:47,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 20:24:47,756 INFO L93 Difference]: Finished difference Result 58527 states and 82632 transitions. [2024-10-12 20:24:47,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-10-12 20:24:47,756 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.625) internal successors, (85), 7 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 85 [2024-10-12 20:24:47,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 20:24:47,813 INFO L225 Difference]: With dead ends: 58527 [2024-10-12 20:24:47,813 INFO L226 Difference]: Without dead ends: 47161 [2024-10-12 20:24:47,837 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=91, Invalid=215, Unknown=0, NotChecked=0, Total=306 [2024-10-12 20:24:47,838 INFO L432 NwaCegarLoop]: 641 mSDtfsCounter, 3624 mSDsluCounter, 1875 mSDsCounter, 0 mSdLazyCounter, 1789 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3624 SdHoareTripleChecker+Valid, 2516 SdHoareTripleChecker+Invalid, 1826 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 1789 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-10-12 20:24:47,838 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3624 Valid, 2516 Invalid, 1826 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 1789 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-10-12 20:24:47,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47161 states. [2024-10-12 20:24:48,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47161 to 30274. [2024-10-12 20:24:48,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30274 states, 30273 states have (on average 1.397548971030291) internal successors, (42308), 30273 states have internal predecessors, (42308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:24:48,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30274 states to 30274 states and 42308 transitions. [2024-10-12 20:24:48,571 INFO L78 Accepts]: Start accepts. Automaton has 30274 states and 42308 transitions. Word has length 85 [2024-10-12 20:24:48,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 20:24:48,572 INFO L471 AbstractCegarLoop]: Abstraction has 30274 states and 42308 transitions. [2024-10-12 20:24:48,572 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.625) internal successors, (85), 7 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:24:48,572 INFO L276 IsEmpty]: Start isEmpty. Operand 30274 states and 42308 transitions. [2024-10-12 20:24:48,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-10-12 20:24:48,582 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:24:48,582 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 20:24:48,582 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2024-10-12 20:24:48,582 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 20:24:48,583 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:24:48,583 INFO L85 PathProgramCache]: Analyzing trace with hash -1192429684, now seen corresponding path program 1 times [2024-10-12 20:24:48,583 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:24:48,583 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2109890703] [2024-10-12 20:24:48,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:24:48,583 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:24:48,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:24:48,653 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 20:24:48,653 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:24:48,653 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2109890703] [2024-10-12 20:24:48,653 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2109890703] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 20:24:48,653 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 20:24:48,653 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-12 20:24:48,654 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2132989597] [2024-10-12 20:24:48,654 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 20:24:48,655 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-12 20:24:48,655 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 20:24:48,656 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-12 20:24:48,656 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 20:24:48,657 INFO L87 Difference]: Start difference. First operand 30274 states and 42308 transitions. Second operand has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:24:48,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 20:24:48,793 INFO L93 Difference]: Finished difference Result 46425 states and 65295 transitions. [2024-10-12 20:24:48,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-12 20:24:48,794 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 85 [2024-10-12 20:24:48,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 20:24:48,831 INFO L225 Difference]: With dead ends: 46425 [2024-10-12 20:24:48,831 INFO L226 Difference]: Without dead ends: 30276 [2024-10-12 20:24:48,851 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 [2024-10-12 20:24:48,852 INFO L432 NwaCegarLoop]: 1233 mSDtfsCounter, 597 mSDsluCounter, 916 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 597 SdHoareTripleChecker+Valid, 2149 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-12 20:24:48,852 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [597 Valid, 2149 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-12 20:24:48,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30276 states. [2024-10-12 20:24:49,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30276 to 30274. [2024-10-12 20:24:49,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30274 states, 30273 states have (on average 1.387341855779077) internal successors, (41999), 30273 states have internal predecessors, (41999), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:24:49,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30274 states to 30274 states and 41999 transitions. [2024-10-12 20:24:49,188 INFO L78 Accepts]: Start accepts. Automaton has 30274 states and 41999 transitions. Word has length 85 [2024-10-12 20:24:49,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 20:24:49,189 INFO L471 AbstractCegarLoop]: Abstraction has 30274 states and 41999 transitions. [2024-10-12 20:24:49,189 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:24:49,189 INFO L276 IsEmpty]: Start isEmpty. Operand 30274 states and 41999 transitions. [2024-10-12 20:24:49,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-10-12 20:24:49,202 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:24:49,202 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 20:24:49,203 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2024-10-12 20:24:49,203 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 20:24:49,203 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:24:49,203 INFO L85 PathProgramCache]: Analyzing trace with hash -689403442, now seen corresponding path program 1 times [2024-10-12 20:24:49,203 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:24:49,203 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1079802958] [2024-10-12 20:24:49,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:24:49,204 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:24:49,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:24:49,665 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 20:24:49,665 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:24:49,665 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1079802958] [2024-10-12 20:24:49,666 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1079802958] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 20:24:49,666 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 20:24:49,666 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-12 20:24:49,666 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [394949346] [2024-10-12 20:24:49,666 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 20:24:49,666 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-12 20:24:49,667 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 20:24:49,667 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-12 20:24:49,667 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-10-12 20:24:49,667 INFO L87 Difference]: Start difference. First operand 30274 states and 41999 transitions. Second operand has 8 states, 8 states have (on average 10.625) internal successors, (85), 7 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:24:50,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 20:24:50,747 INFO L93 Difference]: Finished difference Result 58936 states and 82691 transitions. [2024-10-12 20:24:50,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-10-12 20:24:50,747 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.625) internal successors, (85), 7 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 85 [2024-10-12 20:24:50,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 20:24:50,802 INFO L225 Difference]: With dead ends: 58936 [2024-10-12 20:24:50,802 INFO L226 Difference]: Without dead ends: 47142 [2024-10-12 20:24:50,823 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=91, Invalid=215, Unknown=0, NotChecked=0, Total=306 [2024-10-12 20:24:50,824 INFO L432 NwaCegarLoop]: 680 mSDtfsCounter, 3628 mSDsluCounter, 1969 mSDsCounter, 0 mSdLazyCounter, 1732 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3628 SdHoareTripleChecker+Valid, 2649 SdHoareTripleChecker+Invalid, 1777 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 1732 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-10-12 20:24:50,824 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3628 Valid, 2649 Invalid, 1777 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 1732 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-10-12 20:24:50,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47142 states. [2024-10-12 20:24:51,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47142 to 30004. [2024-10-12 20:24:51,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30004 states, 30003 states have (on average 1.3874945838749457) internal successors, (41629), 30003 states have internal predecessors, (41629), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:24:51,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30004 states to 30004 states and 41629 transitions. [2024-10-12 20:24:51,269 INFO L78 Accepts]: Start accepts. Automaton has 30004 states and 41629 transitions. Word has length 85 [2024-10-12 20:24:51,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 20:24:51,269 INFO L471 AbstractCegarLoop]: Abstraction has 30004 states and 41629 transitions. [2024-10-12 20:24:51,270 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.625) internal successors, (85), 7 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:24:51,270 INFO L276 IsEmpty]: Start isEmpty. Operand 30004 states and 41629 transitions. [2024-10-12 20:24:51,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-10-12 20:24:51,280 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:24:51,280 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 20:24:51,280 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2024-10-12 20:24:51,280 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 20:24:51,281 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:24:51,281 INFO L85 PathProgramCache]: Analyzing trace with hash 509475109, now seen corresponding path program 1 times [2024-10-12 20:24:51,281 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:24:51,281 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [281160792] [2024-10-12 20:24:51,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:24:51,281 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:24:51,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:24:51,353 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 20:24:51,353 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:24:51,354 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [281160792] [2024-10-12 20:24:51,354 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [281160792] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 20:24:51,354 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 20:24:51,354 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-12 20:24:51,354 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1792195741] [2024-10-12 20:24:51,354 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 20:24:51,354 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-12 20:24:51,355 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 20:24:51,355 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-12 20:24:51,355 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 20:24:51,355 INFO L87 Difference]: Start difference. First operand 30004 states and 41629 transitions. Second operand has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:24:51,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 20:24:51,575 INFO L93 Difference]: Finished difference Result 46482 states and 64911 transitions. [2024-10-12 20:24:51,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-12 20:24:51,576 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 85 [2024-10-12 20:24:51,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 20:24:51,608 INFO L225 Difference]: With dead ends: 46482 [2024-10-12 20:24:51,609 INFO L226 Difference]: Without dead ends: 30006 [2024-10-12 20:24:51,624 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 [2024-10-12 20:24:51,624 INFO L432 NwaCegarLoop]: 1265 mSDtfsCounter, 611 mSDsluCounter, 915 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 611 SdHoareTripleChecker+Valid, 2180 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-12 20:24:51,625 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [611 Valid, 2180 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-12 20:24:51,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30006 states. [2024-10-12 20:24:51,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30006 to 30004. [2024-10-12 20:24:51,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30004 states, 30003 states have (on average 1.3787287937872879) internal successors, (41366), 30003 states have internal predecessors, (41366), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:24:51,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30004 states to 30004 states and 41366 transitions. [2024-10-12 20:24:51,911 INFO L78 Accepts]: Start accepts. Automaton has 30004 states and 41366 transitions. Word has length 85 [2024-10-12 20:24:51,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 20:24:51,912 INFO L471 AbstractCegarLoop]: Abstraction has 30004 states and 41366 transitions. [2024-10-12 20:24:51,912 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:24:51,912 INFO L276 IsEmpty]: Start isEmpty. Operand 30004 states and 41366 transitions. [2024-10-12 20:24:51,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-10-12 20:24:51,924 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:24:51,924 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 20:24:51,924 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2024-10-12 20:24:51,924 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 20:24:51,925 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:24:51,925 INFO L85 PathProgramCache]: Analyzing trace with hash 2039518743, now seen corresponding path program 1 times [2024-10-12 20:24:51,925 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:24:51,925 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1949835426] [2024-10-12 20:24:51,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:24:51,925 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:24:51,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:24:51,991 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 20:24:51,992 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:24:51,992 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1949835426] [2024-10-12 20:24:51,992 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1949835426] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 20:24:51,992 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 20:24:51,992 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-12 20:24:51,992 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1160447971] [2024-10-12 20:24:51,992 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 20:24:51,992 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-12 20:24:51,993 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 20:24:51,993 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-12 20:24:51,993 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 20:24:51,993 INFO L87 Difference]: Start difference. First operand 30004 states and 41366 transitions. Second operand has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:24:52,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 20:24:52,151 INFO L93 Difference]: Finished difference Result 56221 states and 78096 transitions. [2024-10-12 20:24:52,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-12 20:24:52,152 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 86 [2024-10-12 20:24:52,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 20:24:52,189 INFO L225 Difference]: With dead ends: 56221 [2024-10-12 20:24:52,190 INFO L226 Difference]: Without dead ends: 37707 [2024-10-12 20:24:52,211 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 [2024-10-12 20:24:52,211 INFO L432 NwaCegarLoop]: 1062 mSDtfsCounter, 938 mSDsluCounter, 273 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 938 SdHoareTripleChecker+Valid, 1335 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-12 20:24:52,211 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [938 Valid, 1335 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-12 20:24:52,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37707 states.