/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.use.bitabs.translation true -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr-var-start-time.5.1.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-20 02:58:22,689 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-20 02:58:22,751 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-12-20 02:58:22,754 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-20 02:58:22,754 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-20 02:58:22,766 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-20 02:58:22,767 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-20 02:58:22,767 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-20 02:58:22,767 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-20 02:58:22,768 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-20 02:58:22,768 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-20 02:58:22,768 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-20 02:58:22,769 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-20 02:58:22,769 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-20 02:58:22,769 INFO L153 SettingsManager]: * Use SBE=true [2023-12-20 02:58:22,769 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-20 02:58:22,770 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-20 02:58:22,770 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-20 02:58:22,770 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-20 02:58:22,770 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-20 02:58:22,770 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-20 02:58:22,771 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-20 02:58:22,771 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-20 02:58:22,771 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-20 02:58:22,771 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-20 02:58:22,772 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-20 02:58:22,772 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-20 02:58:22,772 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-20 02:58:22,772 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-20 02:58:22,773 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-20 02:58:22,773 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-20 02:58:22,773 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-20 02:58:22,773 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-20 02:58:22,774 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-20 02:58:22,774 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-20 02:58:22,774 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-20 02:58:22,774 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-20 02:58:22,774 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-20 02:58:22,774 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-20 02:58:22,775 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-20 02:58:22,775 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-20 02:58:22,775 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-20 02:58:22,775 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-20 02:58:22,776 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> true [2023-12-20 02:58:22,965 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-20 02:58:22,987 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-20 02:58:22,989 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-20 02:58:22,989 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-20 02:58:22,990 INFO L274 PluginConnector]: CDTParser initialized [2023-12-20 02:58:22,991 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr-var-start-time.5.1.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c [2023-12-20 02:58:24,207 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-20 02:58:24,405 INFO L384 CDTParser]: Found 1 translation units. [2023-12-20 02:58:24,405 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr-var-start-time.5.1.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c [2023-12-20 02:58:24,415 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/01b5f8def/88ef52d4225845aea921deb9fcb5d42d/FLAG7111658cf [2023-12-20 02:58:24,425 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/01b5f8def/88ef52d4225845aea921deb9fcb5d42d [2023-12-20 02:58:24,427 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-20 02:58:24,435 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-20 02:58:24,436 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-20 02:58:24,436 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-20 02:58:24,443 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-20 02:58:24,443 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.12 02:58:24" (1/1) ... [2023-12-20 02:58:24,444 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@f09434b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 02:58:24, skipping insertion in model container [2023-12-20 02:58:24,444 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.12 02:58:24" (1/1) ... [2023-12-20 02:58:24,491 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-20 02:58:24,711 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr-var-start-time.5.1.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c[8460,8473] [2023-12-20 02:58:24,793 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-20 02:58:24,809 INFO L202 MainTranslator]: Completed pre-run [2023-12-20 02:58:24,858 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr-var-start-time.5.1.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c[8460,8473] [2023-12-20 02:58:24,885 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-20 02:58:24,898 INFO L206 MainTranslator]: Completed translation [2023-12-20 02:58:24,899 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 02:58:24 WrapperNode [2023-12-20 02:58:24,899 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-20 02:58:24,900 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-20 02:58:24,900 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-20 02:58:24,900 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-20 02:58:24,921 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 02:58:24" (1/1) ... [2023-12-20 02:58:24,941 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 02:58:24" (1/1) ... [2023-12-20 02:58:25,000 INFO L138 Inliner]: procedures = 25, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 856 [2023-12-20 02:58:25,009 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-20 02:58:25,010 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-20 02:58:25,010 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-20 02:58:25,010 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-20 02:58:25,018 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 02:58:24" (1/1) ... [2023-12-20 02:58:25,018 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 02:58:24" (1/1) ... [2023-12-20 02:58:25,022 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 02:58:24" (1/1) ... [2023-12-20 02:58:25,046 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]. [2023-12-20 02:58:25,047 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 02:58:24" (1/1) ... [2023-12-20 02:58:25,047 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 02:58:24" (1/1) ... [2023-12-20 02:58:25,068 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 02:58:24" (1/1) ... [2023-12-20 02:58:25,072 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 02:58:24" (1/1) ... [2023-12-20 02:58:25,074 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 02:58:24" (1/1) ... [2023-12-20 02:58:25,076 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 02:58:24" (1/1) ... [2023-12-20 02:58:25,100 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-20 02:58:25,101 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-20 02:58:25,101 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-20 02:58:25,101 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-20 02:58:25,102 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 02:58:24" (1/1) ... [2023-12-20 02:58:25,106 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-20 02:58:25,117 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 02:58:25,154 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) [2023-12-20 02:58:25,167 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 [2023-12-20 02:58:25,182 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-20 02:58:25,182 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-20 02:58:25,182 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-20 02:58:25,182 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-20 02:58:25,305 INFO L241 CfgBuilder]: Building ICFG [2023-12-20 02:58:25,307 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-20 02:58:25,885 INFO L282 CfgBuilder]: Performing block encoding [2023-12-20 02:58:25,933 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-20 02:58:25,933 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-12-20 02:58:25,934 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.12 02:58:25 BoogieIcfgContainer [2023-12-20 02:58:25,934 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-20 02:58:25,935 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-20 02:58:25,935 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-20 02:58:25,938 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-20 02:58:25,938 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.12 02:58:24" (1/3) ... [2023-12-20 02:58:25,939 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@998f9cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.12 02:58:25, skipping insertion in model container [2023-12-20 02:58:25,939 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 02:58:24" (2/3) ... [2023-12-20 02:58:25,939 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@998f9cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.12 02:58:25, skipping insertion in model container [2023-12-20 02:58:25,939 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.12 02:58:25" (3/3) ... [2023-12-20 02:58:25,940 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr-var-start-time.5.1.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c [2023-12-20 02:58:25,953 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-20 02:58:25,954 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-20 02:58:26,010 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-20 02:58:26,015 INFO L357 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, mHoare=true, 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;@b8a68c4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-20 02:58:26,015 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-20 02:58:26,021 INFO L276 IsEmpty]: Start isEmpty. Operand has 213 states, 211 states have (on average 1.7251184834123223) internal successors, (364), 212 states have internal predecessors, (364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:58:26,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2023-12-20 02:58:26,031 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:58:26,033 INFO L195 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] [2023-12-20 02:58:26,034 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 02:58:26,037 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:58:26,038 INFO L85 PathProgramCache]: Analyzing trace with hash 238097348, now seen corresponding path program 1 times [2023-12-20 02:58:26,044 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:58:26,044 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2041889138] [2023-12-20 02:58:26,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:58:26,045 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:58:26,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:58:26,576 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:58:26,576 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:58:26,576 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2041889138] [2023-12-20 02:58:26,577 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2041889138] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:58:26,577 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:58:26,577 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-20 02:58:26,579 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [210522113] [2023-12-20 02:58:26,579 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:58:26,582 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-20 02:58:26,583 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:58:26,604 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-20 02:58:26,605 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-20 02:58:26,607 INFO L87 Difference]: Start difference. First operand has 213 states, 211 states have (on average 1.7251184834123223) internal successors, (364), 212 states have internal predecessors, (364), 0 states have call successors, (0), 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 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 7 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) [2023-12-20 02:58:26,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:58:26,845 INFO L93 Difference]: Finished difference Result 859 states and 1394 transitions. [2023-12-20 02:58:26,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-20 02:58:26,847 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 7 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 [2023-12-20 02:58:26,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:58:26,858 INFO L225 Difference]: With dead ends: 859 [2023-12-20 02:58:26,859 INFO L226 Difference]: Without dead ends: 746 [2023-12-20 02:58:26,861 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2023-12-20 02:58:26,864 INFO L413 NwaCegarLoop]: 355 mSDtfsCounter, 2365 mSDsluCounter, 1818 mSDsCounter, 0 mSdLazyCounter, 130 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2365 SdHoareTripleChecker+Valid, 2173 SdHoareTripleChecker+Invalid, 132 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 130 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-20 02:58:26,864 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2365 Valid, 2173 Invalid, 132 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 130 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-20 02:58:26,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 746 states. [2023-12-20 02:58:26,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 746 to 327. [2023-12-20 02:58:26,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 327 states, 326 states have (on average 1.50920245398773) internal successors, (492), 326 states have internal predecessors, (492), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:58:26,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 327 states to 327 states and 492 transitions. [2023-12-20 02:58:26,935 INFO L78 Accepts]: Start accepts. Automaton has 327 states and 492 transitions. Word has length 79 [2023-12-20 02:58:26,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:58:26,936 INFO L495 AbstractCegarLoop]: Abstraction has 327 states and 492 transitions. [2023-12-20 02:58:26,936 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 7 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) [2023-12-20 02:58:26,936 INFO L276 IsEmpty]: Start isEmpty. Operand 327 states and 492 transitions. [2023-12-20 02:58:26,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2023-12-20 02:58:26,938 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:58:26,938 INFO L195 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] [2023-12-20 02:58:26,938 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-20 02:58:26,938 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 02:58:26,939 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:58:26,939 INFO L85 PathProgramCache]: Analyzing trace with hash -1488805870, now seen corresponding path program 1 times [2023-12-20 02:58:26,939 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:58:26,940 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [838693821] [2023-12-20 02:58:26,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:58:26,940 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:58:26,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:58:27,230 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:58:27,231 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:58:27,231 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [838693821] [2023-12-20 02:58:27,231 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [838693821] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:58:27,231 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:58:27,232 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-20 02:58:27,232 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [328918701] [2023-12-20 02:58:27,232 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:58:27,234 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-20 02:58:27,236 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:58:27,237 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-20 02:58:27,237 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-12-20 02:58:27,237 INFO L87 Difference]: Start difference. First operand 327 states and 492 transitions. Second operand has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 7 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) [2023-12-20 02:58:27,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:58:27,412 INFO L93 Difference]: Finished difference Result 1423 states and 2209 transitions. [2023-12-20 02:58:27,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-20 02:58:27,412 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 7 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 [2023-12-20 02:58:27,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:58:27,416 INFO L225 Difference]: With dead ends: 1423 [2023-12-20 02:58:27,417 INFO L226 Difference]: Without dead ends: 1175 [2023-12-20 02:58:27,420 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-12-20 02:58:27,421 INFO L413 NwaCegarLoop]: 615 mSDtfsCounter, 1499 mSDsluCounter, 784 mSDsCounter, 0 mSdLazyCounter, 109 mSolverCounterSat, 70 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1499 SdHoareTripleChecker+Valid, 1399 SdHoareTripleChecker+Invalid, 179 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 70 IncrementalHoareTripleChecker+Valid, 109 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-20 02:58:27,421 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1499 Valid, 1399 Invalid, 179 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [70 Valid, 109 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-20 02:58:27,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1175 states. [2023-12-20 02:58:27,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1175 to 1167. [2023-12-20 02:58:27,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1167 states, 1166 states have (on average 1.5480274442538593) internal successors, (1805), 1166 states have internal predecessors, (1805), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:58:27,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1167 states to 1167 states and 1805 transitions. [2023-12-20 02:58:27,459 INFO L78 Accepts]: Start accepts. Automaton has 1167 states and 1805 transitions. Word has length 80 [2023-12-20 02:58:27,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:58:27,460 INFO L495 AbstractCegarLoop]: Abstraction has 1167 states and 1805 transitions. [2023-12-20 02:58:27,460 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 7 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) [2023-12-20 02:58:27,461 INFO L276 IsEmpty]: Start isEmpty. Operand 1167 states and 1805 transitions. [2023-12-20 02:58:27,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2023-12-20 02:58:27,467 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:58:27,467 INFO L195 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] [2023-12-20 02:58:27,467 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-20 02:58:27,468 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 02:58:27,471 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:58:27,471 INFO L85 PathProgramCache]: Analyzing trace with hash -1568346073, now seen corresponding path program 1 times [2023-12-20 02:58:27,471 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:58:27,472 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [708977321] [2023-12-20 02:58:27,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:58:27,472 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:58:27,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:58:27,629 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:58:27,629 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:58:27,630 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [708977321] [2023-12-20 02:58:27,630 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [708977321] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:58:27,630 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:58:27,631 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-20 02:58:27,631 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2084929842] [2023-12-20 02:58:27,631 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:58:27,631 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-20 02:58:27,631 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:58:27,632 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-20 02:58:27,634 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-20 02:58:27,634 INFO L87 Difference]: Start difference. First operand 1167 states and 1805 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) [2023-12-20 02:58:27,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:58:27,880 INFO L93 Difference]: Finished difference Result 3104 states and 4858 transitions. [2023-12-20 02:58:27,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-20 02:58:27,881 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 [2023-12-20 02:58:27,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:58:27,887 INFO L225 Difference]: With dead ends: 3104 [2023-12-20 02:58:27,887 INFO L226 Difference]: Without dead ends: 2017 [2023-12-20 02:58:27,891 INFO L412 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 [2023-12-20 02:58:27,894 INFO L413 NwaCegarLoop]: 177 mSDtfsCounter, 1168 mSDsluCounter, 119 mSDsCounter, 0 mSdLazyCounter, 202 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1168 SdHoareTripleChecker+Valid, 296 SdHoareTripleChecker+Invalid, 209 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 202 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-20 02:58:27,894 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1168 Valid, 296 Invalid, 209 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 202 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-20 02:58:27,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2017 states. [2023-12-20 02:58:27,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2017 to 2015. [2023-12-20 02:58:27,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2015 states, 2014 states have (on average 1.5566037735849056) internal successors, (3135), 2014 states have internal predecessors, (3135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:58:27,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2015 states to 2015 states and 3135 transitions. [2023-12-20 02:58:27,926 INFO L78 Accepts]: Start accepts. Automaton has 2015 states and 3135 transitions. Word has length 81 [2023-12-20 02:58:27,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:58:27,927 INFO L495 AbstractCegarLoop]: Abstraction has 2015 states and 3135 transitions. [2023-12-20 02:58:27,927 INFO L496 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) [2023-12-20 02:58:27,927 INFO L276 IsEmpty]: Start isEmpty. Operand 2015 states and 3135 transitions. [2023-12-20 02:58:27,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2023-12-20 02:58:27,929 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:58:27,929 INFO L195 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] [2023-12-20 02:58:27,929 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-20 02:58:27,929 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 02:58:27,930 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:58:27,930 INFO L85 PathProgramCache]: Analyzing trace with hash 945560248, now seen corresponding path program 1 times [2023-12-20 02:58:27,930 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:58:27,930 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1359220974] [2023-12-20 02:58:27,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:58:27,930 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:58:27,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:58:28,007 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:58:28,007 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:58:28,007 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1359220974] [2023-12-20 02:58:28,008 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1359220974] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:58:28,008 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:58:28,008 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-20 02:58:28,008 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2092555030] [2023-12-20 02:58:28,008 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:58:28,008 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-20 02:58:28,009 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:58:28,009 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-20 02:58:28,009 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-20 02:58:28,009 INFO L87 Difference]: Start difference. First operand 2015 states and 3135 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) [2023-12-20 02:58:28,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:58:28,213 INFO L93 Difference]: Finished difference Result 5536 states and 8683 transitions. [2023-12-20 02:58:28,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-20 02:58:28,214 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 [2023-12-20 02:58:28,214 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:58:28,224 INFO L225 Difference]: With dead ends: 5536 [2023-12-20 02:58:28,224 INFO L226 Difference]: Without dead ends: 3631 [2023-12-20 02:58:28,227 INFO L412 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 [2023-12-20 02:58:28,228 INFO L413 NwaCegarLoop]: 175 mSDtfsCounter, 1134 mSDsluCounter, 121 mSDsCounter, 0 mSdLazyCounter, 196 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1134 SdHoareTripleChecker+Valid, 296 SdHoareTripleChecker+Invalid, 203 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 196 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-20 02:58:28,228 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1134 Valid, 296 Invalid, 203 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 196 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-20 02:58:28,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3631 states. [2023-12-20 02:58:28,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3631 to 3629. [2023-12-20 02:58:28,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3629 states, 3628 states have (on average 1.5595369349503858) internal successors, (5658), 3628 states have internal predecessors, (5658), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:58:28,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3629 states to 3629 states and 5658 transitions. [2023-12-20 02:58:28,288 INFO L78 Accepts]: Start accepts. Automaton has 3629 states and 5658 transitions. Word has length 81 [2023-12-20 02:58:28,288 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:58:28,288 INFO L495 AbstractCegarLoop]: Abstraction has 3629 states and 5658 transitions. [2023-12-20 02:58:28,288 INFO L496 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) [2023-12-20 02:58:28,288 INFO L276 IsEmpty]: Start isEmpty. Operand 3629 states and 5658 transitions. [2023-12-20 02:58:28,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2023-12-20 02:58:28,290 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:58:28,290 INFO L195 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] [2023-12-20 02:58:28,290 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-20 02:58:28,290 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 02:58:28,291 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:58:28,291 INFO L85 PathProgramCache]: Analyzing trace with hash 1454177033, now seen corresponding path program 1 times [2023-12-20 02:58:28,291 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:58:28,291 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1748488553] [2023-12-20 02:58:28,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:58:28,291 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:58:28,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:58:28,420 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:58:28,420 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:58:28,421 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1748488553] [2023-12-20 02:58:28,421 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1748488553] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:58:28,422 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:58:28,422 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-20 02:58:28,422 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1282969005] [2023-12-20 02:58:28,422 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:58:28,422 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-20 02:58:28,422 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:58:28,423 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-20 02:58:28,423 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-20 02:58:28,423 INFO L87 Difference]: Start difference. First operand 3629 states and 5658 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) [2023-12-20 02:58:28,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:58:28,637 INFO L93 Difference]: Finished difference Result 10316 states and 16187 transitions. [2023-12-20 02:58:28,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-20 02:58:28,637 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 [2023-12-20 02:58:28,638 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:58:28,658 INFO L225 Difference]: With dead ends: 10316 [2023-12-20 02:58:28,658 INFO L226 Difference]: Without dead ends: 6831 [2023-12-20 02:58:28,666 INFO L412 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 [2023-12-20 02:58:28,667 INFO L413 NwaCegarLoop]: 179 mSDtfsCounter, 1116 mSDsluCounter, 128 mSDsCounter, 0 mSdLazyCounter, 189 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1116 SdHoareTripleChecker+Valid, 307 SdHoareTripleChecker+Invalid, 195 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 189 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-20 02:58:28,667 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1116 Valid, 307 Invalid, 195 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 189 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-20 02:58:28,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6831 states. [2023-12-20 02:58:28,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6831 to 6829. [2023-12-20 02:58:28,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6829 states, 6828 states have (on average 1.5619507908611598) internal successors, (10665), 6828 states have internal predecessors, (10665), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:58:28,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6829 states to 6829 states and 10665 transitions. [2023-12-20 02:58:28,802 INFO L78 Accepts]: Start accepts. Automaton has 6829 states and 10665 transitions. Word has length 81 [2023-12-20 02:58:28,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:58:28,803 INFO L495 AbstractCegarLoop]: Abstraction has 6829 states and 10665 transitions. [2023-12-20 02:58:28,803 INFO L496 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) [2023-12-20 02:58:28,804 INFO L276 IsEmpty]: Start isEmpty. Operand 6829 states and 10665 transitions. [2023-12-20 02:58:28,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2023-12-20 02:58:28,805 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:58:28,806 INFO L195 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] [2023-12-20 02:58:28,806 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-20 02:58:28,806 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 02:58:28,806 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:58:28,806 INFO L85 PathProgramCache]: Analyzing trace with hash -415106218, now seen corresponding path program 1 times [2023-12-20 02:58:28,806 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:58:28,806 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [558677147] [2023-12-20 02:58:28,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:58:28,807 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:58:28,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:58:28,903 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:58:28,903 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:58:28,903 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [558677147] [2023-12-20 02:58:28,904 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [558677147] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:58:28,904 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:58:28,904 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-20 02:58:28,904 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1412501172] [2023-12-20 02:58:28,904 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:58:28,904 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-20 02:58:28,904 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:58:28,905 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-20 02:58:28,905 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-20 02:58:28,905 INFO L87 Difference]: Start difference. First operand 6829 states and 10665 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) [2023-12-20 02:58:29,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:58:29,200 INFO L93 Difference]: Finished difference Result 20143 states and 31539 transitions. [2023-12-20 02:58:29,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-20 02:58:29,201 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 [2023-12-20 02:58:29,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:58:29,266 INFO L225 Difference]: With dead ends: 20143 [2023-12-20 02:58:29,267 INFO L226 Difference]: Without dead ends: 13371 [2023-12-20 02:58:29,272 INFO L412 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 [2023-12-20 02:58:29,273 INFO L413 NwaCegarLoop]: 177 mSDtfsCounter, 1182 mSDsluCounter, 117 mSDsCounter, 0 mSdLazyCounter, 200 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1182 SdHoareTripleChecker+Valid, 294 SdHoareTripleChecker+Invalid, 207 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 200 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-20 02:58:29,273 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1182 Valid, 294 Invalid, 207 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 200 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-20 02:58:29,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13371 states. [2023-12-20 02:58:29,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13371 to 13369. [2023-12-20 02:58:29,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13369 states, 13368 states have (on average 1.5567025733093955) internal successors, (20810), 13368 states have internal predecessors, (20810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:58:29,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13369 states to 13369 states and 20810 transitions. [2023-12-20 02:58:29,539 INFO L78 Accepts]: Start accepts. Automaton has 13369 states and 20810 transitions. Word has length 81 [2023-12-20 02:58:29,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:58:29,539 INFO L495 AbstractCegarLoop]: Abstraction has 13369 states and 20810 transitions. [2023-12-20 02:58:29,540 INFO L496 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) [2023-12-20 02:58:29,540 INFO L276 IsEmpty]: Start isEmpty. Operand 13369 states and 20810 transitions. [2023-12-20 02:58:29,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2023-12-20 02:58:29,543 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:58:29,543 INFO L195 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] [2023-12-20 02:58:29,543 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-12-20 02:58:29,543 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 02:58:29,543 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:58:29,544 INFO L85 PathProgramCache]: Analyzing trace with hash 1656601669, now seen corresponding path program 1 times [2023-12-20 02:58:29,544 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:58:29,544 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [25564235] [2023-12-20 02:58:29,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:58:29,544 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:58:29,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:58:29,621 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:58:29,621 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:58:29,621 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [25564235] [2023-12-20 02:58:29,621 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [25564235] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:58:29,621 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:58:29,621 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-20 02:58:29,621 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [17054046] [2023-12-20 02:58:29,622 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:58:29,622 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-20 02:58:29,622 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:58:29,622 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-20 02:58:29,622 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-20 02:58:29,622 INFO L87 Difference]: Start difference. First operand 13369 states and 20810 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) [2023-12-20 02:58:29,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:58:29,980 INFO L93 Difference]: Finished difference Result 39776 states and 61995 transitions. [2023-12-20 02:58:29,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-20 02:58:29,981 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 [2023-12-20 02:58:29,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:58:30,030 INFO L225 Difference]: With dead ends: 39776 [2023-12-20 02:58:30,030 INFO L226 Difference]: Without dead ends: 26448 [2023-12-20 02:58:30,051 INFO L412 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 [2023-12-20 02:58:30,052 INFO L413 NwaCegarLoop]: 175 mSDtfsCounter, 1210 mSDsluCounter, 115 mSDsCounter, 0 mSdLazyCounter, 203 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1210 SdHoareTripleChecker+Valid, 290 SdHoareTripleChecker+Invalid, 210 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 203 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-20 02:58:30,052 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1210 Valid, 290 Invalid, 210 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 203 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-20 02:58:30,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26448 states. [2023-12-20 02:58:30,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26448 to 26446. [2023-12-20 02:58:30,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26446 states, 26445 states have (on average 1.5480809226696919) internal successors, (40939), 26445 states have internal predecessors, (40939), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:58:30,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26446 states to 26446 states and 40939 transitions. [2023-12-20 02:58:30,463 INFO L78 Accepts]: Start accepts. Automaton has 26446 states and 40939 transitions. Word has length 81 [2023-12-20 02:58:30,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:58:30,463 INFO L495 AbstractCegarLoop]: Abstraction has 26446 states and 40939 transitions. [2023-12-20 02:58:30,463 INFO L496 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) [2023-12-20 02:58:30,463 INFO L276 IsEmpty]: Start isEmpty. Operand 26446 states and 40939 transitions. [2023-12-20 02:58:30,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2023-12-20 02:58:30,468 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:58:30,468 INFO L195 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] [2023-12-20 02:58:30,468 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-12-20 02:58:30,468 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 02:58:30,468 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:58:30,468 INFO L85 PathProgramCache]: Analyzing trace with hash 1146010974, now seen corresponding path program 1 times [2023-12-20 02:58:30,469 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:58:30,469 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [108081705] [2023-12-20 02:58:30,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:58:30,469 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:58:30,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:58:30,780 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:58:30,780 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:58:30,780 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [108081705] [2023-12-20 02:58:30,780 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [108081705] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:58:30,780 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:58:30,780 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-20 02:58:30,780 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1329816756] [2023-12-20 02:58:30,780 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:58:30,781 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-20 02:58:30,781 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:58:30,781 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-20 02:58:30,781 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-20 02:58:30,781 INFO L87 Difference]: Start difference. First operand 26446 states and 40939 transitions. Second operand has 5 states, 5 states have (on average 16.4) internal successors, (82), 5 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) [2023-12-20 02:58:30,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:58:30,954 INFO L93 Difference]: Finished difference Result 52688 states and 81292 transitions. [2023-12-20 02:58:30,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-20 02:58:30,954 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 5 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 [2023-12-20 02:58:30,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:58:31,040 INFO L225 Difference]: With dead ends: 52688 [2023-12-20 02:58:31,040 INFO L226 Difference]: Without dead ends: 52686 [2023-12-20 02:58:31,061 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-20 02:58:31,062 INFO L413 NwaCegarLoop]: 326 mSDtfsCounter, 304 mSDsluCounter, 906 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 304 SdHoareTripleChecker+Valid, 1232 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-20 02:58:31,063 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [304 Valid, 1232 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 02:58:31,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52686 states. [2023-12-20 02:58:31,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52686 to 27086. [2023-12-20 02:58:31,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27086 states, 27085 states have (on average 1.5351301458371793) internal successors, (41579), 27085 states have internal predecessors, (41579), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:58:31,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27086 states to 27086 states and 41579 transitions. [2023-12-20 02:58:31,731 INFO L78 Accepts]: Start accepts. Automaton has 27086 states and 41579 transitions. Word has length 82 [2023-12-20 02:58:31,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:58:31,731 INFO L495 AbstractCegarLoop]: Abstraction has 27086 states and 41579 transitions. [2023-12-20 02:58:31,731 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 5 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) [2023-12-20 02:58:31,731 INFO L276 IsEmpty]: Start isEmpty. Operand 27086 states and 41579 transitions. [2023-12-20 02:58:31,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2023-12-20 02:58:31,736 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:58:31,736 INFO L195 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] [2023-12-20 02:58:31,737 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-12-20 02:58:31,737 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 02:58:31,737 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:58:31,737 INFO L85 PathProgramCache]: Analyzing trace with hash 1446008994, now seen corresponding path program 1 times [2023-12-20 02:58:31,737 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:58:31,737 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [900824403] [2023-12-20 02:58:31,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:58:31,738 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:58:31,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:58:32,088 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:58:32,088 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:58:32,088 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [900824403] [2023-12-20 02:58:32,088 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [900824403] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:58:32,088 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:58:32,089 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-20 02:58:32,089 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1121186716] [2023-12-20 02:58:32,089 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:58:32,089 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-20 02:58:32,089 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:58:32,090 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-20 02:58:32,090 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-12-20 02:58:32,090 INFO L87 Difference]: Start difference. First operand 27086 states and 41579 transitions. Second operand has 9 states, 9 states have (on average 9.222222222222221) internal successors, (83), 8 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) [2023-12-20 02:58:33,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:58:33,425 INFO L93 Difference]: Finished difference Result 119757 states and 182390 transitions. [2023-12-20 02:58:33,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-12-20 02:58:33,425 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.222222222222221) internal successors, (83), 8 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 [2023-12-20 02:58:33,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:58:33,611 INFO L225 Difference]: With dead ends: 119757 [2023-12-20 02:58:33,612 INFO L226 Difference]: Without dead ends: 105445 [2023-12-20 02:58:33,646 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 100 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=143, Invalid=457, Unknown=0, NotChecked=0, Total=600 [2023-12-20 02:58:33,647 INFO L413 NwaCegarLoop]: 272 mSDtfsCounter, 2106 mSDsluCounter, 1504 mSDsCounter, 0 mSdLazyCounter, 1376 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2106 SdHoareTripleChecker+Valid, 1776 SdHoareTripleChecker+Invalid, 1384 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 1376 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-20 02:58:33,647 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2106 Valid, 1776 Invalid, 1384 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 1376 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-20 02:58:33,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105445 states. [2023-12-20 02:58:34,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105445 to 27379. [2023-12-20 02:58:34,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27379 states, 27378 states have (on average 1.5334209949594566) internal successors, (41982), 27378 states have internal predecessors, (41982), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:58:34,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27379 states to 27379 states and 41982 transitions. [2023-12-20 02:58:34,723 INFO L78 Accepts]: Start accepts. Automaton has 27379 states and 41982 transitions. Word has length 83 [2023-12-20 02:58:34,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:58:34,724 INFO L495 AbstractCegarLoop]: Abstraction has 27379 states and 41982 transitions. [2023-12-20 02:58:34,724 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.222222222222221) internal successors, (83), 8 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) [2023-12-20 02:58:34,724 INFO L276 IsEmpty]: Start isEmpty. Operand 27379 states and 41982 transitions. [2023-12-20 02:58:34,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2023-12-20 02:58:34,730 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:58:34,730 INFO L195 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] [2023-12-20 02:58:34,730 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-12-20 02:58:34,730 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 02:58:34,730 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:58:34,731 INFO L85 PathProgramCache]: Analyzing trace with hash -1513368446, now seen corresponding path program 1 times [2023-12-20 02:58:34,731 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:58:34,731 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1051241964] [2023-12-20 02:58:34,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:58:34,731 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:58:34,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:58:35,101 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:58:35,101 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:58:35,101 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1051241964] [2023-12-20 02:58:35,101 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1051241964] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:58:35,101 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:58:35,101 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-20 02:58:35,101 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1323697110] [2023-12-20 02:58:35,102 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:58:35,102 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-20 02:58:35,102 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:58:35,102 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-20 02:58:35,102 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-12-20 02:58:35,102 INFO L87 Difference]: Start difference. First operand 27379 states and 41982 transitions. Second operand has 9 states, 9 states have (on average 9.222222222222221) internal successors, (83), 8 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) [2023-12-20 02:58:36,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:58:36,879 INFO L93 Difference]: Finished difference Result 98827 states and 149935 transitions. [2023-12-20 02:58:36,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-12-20 02:58:36,880 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.222222222222221) internal successors, (83), 8 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 [2023-12-20 02:58:36,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:58:37,021 INFO L225 Difference]: With dead ends: 98827 [2023-12-20 02:58:37,023 INFO L226 Difference]: Without dead ends: 89993 [2023-12-20 02:58:37,061 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 115 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=150, Invalid=500, Unknown=0, NotChecked=0, Total=650 [2023-12-20 02:58:37,061 INFO L413 NwaCegarLoop]: 351 mSDtfsCounter, 1842 mSDsluCounter, 2133 mSDsCounter, 0 mSdLazyCounter, 1976 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1842 SdHoareTripleChecker+Valid, 2484 SdHoareTripleChecker+Invalid, 1984 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 1976 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-12-20 02:58:37,061 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1842 Valid, 2484 Invalid, 1984 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [8 Valid, 1976 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-12-20 02:58:37,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89993 states. [2023-12-20 02:58:38,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89993 to 27915. [2023-12-20 02:58:38,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27915 states, 27914 states have (on average 1.5315970480762342) internal successors, (42753), 27914 states have internal predecessors, (42753), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:58:38,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27915 states to 27915 states and 42753 transitions. [2023-12-20 02:58:38,104 INFO L78 Accepts]: Start accepts. Automaton has 27915 states and 42753 transitions. Word has length 83 [2023-12-20 02:58:38,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:58:38,105 INFO L495 AbstractCegarLoop]: Abstraction has 27915 states and 42753 transitions. [2023-12-20 02:58:38,105 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.222222222222221) internal successors, (83), 8 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) [2023-12-20 02:58:38,105 INFO L276 IsEmpty]: Start isEmpty. Operand 27915 states and 42753 transitions. [2023-12-20 02:58:38,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2023-12-20 02:58:38,112 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:58:38,112 INFO L195 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] [2023-12-20 02:58:38,112 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-12-20 02:58:38,112 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 02:58:38,113 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:58:38,113 INFO L85 PathProgramCache]: Analyzing trace with hash -2116249502, now seen corresponding path program 1 times [2023-12-20 02:58:38,113 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:58:38,113 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1431188589] [2023-12-20 02:58:38,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:58:38,113 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:58:38,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:58:38,451 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:58:38,451 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:58:38,452 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1431188589] [2023-12-20 02:58:38,452 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1431188589] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:58:38,452 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:58:38,452 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-20 02:58:38,452 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [164915247] [2023-12-20 02:58:38,452 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:58:38,452 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-20 02:58:38,452 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:58:38,453 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-20 02:58:38,453 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2023-12-20 02:58:38,453 INFO L87 Difference]: Start difference. First operand 27915 states and 42753 transitions. Second operand has 9 states, 9 states have (on average 9.222222222222221) internal successors, (83), 8 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) [2023-12-20 02:58:39,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:58:39,596 INFO L93 Difference]: Finished difference Result 71014 states and 108103 transitions. [2023-12-20 02:58:39,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-12-20 02:58:39,596 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.222222222222221) internal successors, (83), 8 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 [2023-12-20 02:58:39,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:58:39,695 INFO L225 Difference]: With dead ends: 71014 [2023-12-20 02:58:39,696 INFO L226 Difference]: Without dead ends: 67707 [2023-12-20 02:58:39,725 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 119 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=170, Invalid=480, Unknown=0, NotChecked=0, Total=650 [2023-12-20 02:58:39,725 INFO L413 NwaCegarLoop]: 311 mSDtfsCounter, 2008 mSDsluCounter, 1319 mSDsCounter, 0 mSdLazyCounter, 1231 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2008 SdHoareTripleChecker+Valid, 1630 SdHoareTripleChecker+Invalid, 1239 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 1231 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-20 02:58:39,726 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2008 Valid, 1630 Invalid, 1239 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 1231 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-20 02:58:39,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67707 states. [2023-12-20 02:58:40,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67707 to 27915. [2023-12-20 02:58:40,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27915 states, 27914 states have (on average 1.531453750806047) internal successors, (42749), 27914 states have internal predecessors, (42749), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:58:40,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27915 states to 27915 states and 42749 transitions. [2023-12-20 02:58:40,371 INFO L78 Accepts]: Start accepts. Automaton has 27915 states and 42749 transitions. Word has length 83 [2023-12-20 02:58:40,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:58:40,371 INFO L495 AbstractCegarLoop]: Abstraction has 27915 states and 42749 transitions. [2023-12-20 02:58:40,372 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.222222222222221) internal successors, (83), 8 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) [2023-12-20 02:58:40,372 INFO L276 IsEmpty]: Start isEmpty. Operand 27915 states and 42749 transitions. [2023-12-20 02:58:40,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2023-12-20 02:58:40,378 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:58:40,378 INFO L195 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] [2023-12-20 02:58:40,379 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-12-20 02:58:40,379 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 02:58:40,379 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:58:40,379 INFO L85 PathProgramCache]: Analyzing trace with hash 1194992834, now seen corresponding path program 1 times [2023-12-20 02:58:40,379 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:58:40,379 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [105426479] [2023-12-20 02:58:40,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:58:40,379 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:58:40,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:58:40,760 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:58:40,760 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:58:40,760 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [105426479] [2023-12-20 02:58:40,760 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [105426479] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:58:40,760 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:58:40,760 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-20 02:58:40,760 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [234504385] [2023-12-20 02:58:40,760 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:58:40,761 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-20 02:58:40,761 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:58:40,761 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-20 02:58:40,761 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-12-20 02:58:40,761 INFO L87 Difference]: Start difference. First operand 27915 states and 42749 transitions. Second operand has 9 states, 9 states have (on average 9.222222222222221) internal successors, (83), 8 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) [2023-12-20 02:58:42,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:58:42,239 INFO L93 Difference]: Finished difference Result 136180 states and 206919 transitions. [2023-12-20 02:58:42,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-12-20 02:58:42,240 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.222222222222221) internal successors, (83), 8 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 [2023-12-20 02:58:42,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:58:42,430 INFO L225 Difference]: With dead ends: 136180 [2023-12-20 02:58:42,431 INFO L226 Difference]: Without dead ends: 116461 [2023-12-20 02:58:42,475 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 100 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=143, Invalid=457, Unknown=0, NotChecked=0, Total=600 [2023-12-20 02:58:42,476 INFO L413 NwaCegarLoop]: 330 mSDtfsCounter, 1944 mSDsluCounter, 1721 mSDsCounter, 0 mSdLazyCounter, 1635 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1944 SdHoareTripleChecker+Valid, 2051 SdHoareTripleChecker+Invalid, 1643 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 1635 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-12-20 02:58:42,476 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1944 Valid, 2051 Invalid, 1643 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 1635 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-12-20 02:58:42,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116461 states. [2023-12-20 02:58:43,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116461 to 28332. [2023-12-20 02:58:43,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28332 states, 28331 states have (on average 1.5279375948607532) internal successors, (43288), 28331 states have internal predecessors, (43288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:58:43,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28332 states to 28332 states and 43288 transitions. [2023-12-20 02:58:43,788 INFO L78 Accepts]: Start accepts. Automaton has 28332 states and 43288 transitions. Word has length 83 [2023-12-20 02:58:43,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:58:43,789 INFO L495 AbstractCegarLoop]: Abstraction has 28332 states and 43288 transitions. [2023-12-20 02:58:43,789 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.222222222222221) internal successors, (83), 8 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) [2023-12-20 02:58:43,789 INFO L276 IsEmpty]: Start isEmpty. Operand 28332 states and 43288 transitions. [2023-12-20 02:58:43,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2023-12-20 02:58:43,795 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:58:43,795 INFO L195 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] [2023-12-20 02:58:43,795 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-12-20 02:58:43,796 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 02:58:43,796 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:58:43,796 INFO L85 PathProgramCache]: Analyzing trace with hash 1796815074, now seen corresponding path program 1 times [2023-12-20 02:58:43,796 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:58:43,796 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [857293515] [2023-12-20 02:58:43,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:58:43,796 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:58:43,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:58:44,009 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:58:44,009 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:58:44,009 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [857293515] [2023-12-20 02:58:44,009 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [857293515] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:58:44,009 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:58:44,009 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-20 02:58:44,010 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1048258647] [2023-12-20 02:58:44,010 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:58:44,010 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-20 02:58:44,010 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:58:44,011 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-20 02:58:44,011 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-12-20 02:58:44,011 INFO L87 Difference]: Start difference. First operand 28332 states and 43288 transitions. Second operand has 9 states, 9 states have (on average 9.222222222222221) internal successors, (83), 8 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) [2023-12-20 02:58:45,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:58:45,598 INFO L93 Difference]: Finished difference Result 132775 states and 201357 transitions. [2023-12-20 02:58:45,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-12-20 02:58:45,598 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.222222222222221) internal successors, (83), 8 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 [2023-12-20 02:58:45,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:58:45,776 INFO L225 Difference]: With dead ends: 132775 [2023-12-20 02:58:45,776 INFO L226 Difference]: Without dead ends: 105885 [2023-12-20 02:58:45,830 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 99 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=143, Invalid=457, Unknown=0, NotChecked=0, Total=600 [2023-12-20 02:58:45,831 INFO L413 NwaCegarLoop]: 343 mSDtfsCounter, 1872 mSDsluCounter, 2015 mSDsCounter, 0 mSdLazyCounter, 1872 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1872 SdHoareTripleChecker+Valid, 2358 SdHoareTripleChecker+Invalid, 1880 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 1872 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-12-20 02:58:45,831 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1872 Valid, 2358 Invalid, 1880 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 1872 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-12-20 02:58:45,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105885 states. [2023-12-20 02:58:46,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105885 to 28691. [2023-12-20 02:58:46,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28691 states, 28690 states have (on average 1.5231439525967236) internal successors, (43699), 28690 states have internal predecessors, (43699), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:58:46,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28691 states to 28691 states and 43699 transitions. [2023-12-20 02:58:46,946 INFO L78 Accepts]: Start accepts. Automaton has 28691 states and 43699 transitions. Word has length 83 [2023-12-20 02:58:46,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:58:46,946 INFO L495 AbstractCegarLoop]: Abstraction has 28691 states and 43699 transitions. [2023-12-20 02:58:46,946 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.222222222222221) internal successors, (83), 8 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) [2023-12-20 02:58:46,947 INFO L276 IsEmpty]: Start isEmpty. Operand 28691 states and 43699 transitions. [2023-12-20 02:58:46,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2023-12-20 02:58:46,953 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:58:46,953 INFO L195 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] [2023-12-20 02:58:46,953 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-12-20 02:58:46,953 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 02:58:46,954 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:58:46,954 INFO L85 PathProgramCache]: Analyzing trace with hash -1075536573, now seen corresponding path program 1 times [2023-12-20 02:58:46,954 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:58:46,954 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [695672215] [2023-12-20 02:58:46,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:58:46,954 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:58:46,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:58:46,987 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:58:46,987 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:58:46,987 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [695672215] [2023-12-20 02:58:46,987 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [695672215] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:58:46,987 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:58:46,987 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-20 02:58:46,987 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [514323752] [2023-12-20 02:58:46,988 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:58:46,988 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 02:58:46,988 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:58:46,988 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 02:58:46,988 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 02:58:46,988 INFO L87 Difference]: Start difference. First operand 28691 states and 43699 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) [2023-12-20 02:58:47,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:58:47,094 INFO L93 Difference]: Finished difference Result 45193 states and 68999 transitions. [2023-12-20 02:58:47,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 02:58:47,094 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 [2023-12-20 02:58:47,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:58:47,135 INFO L225 Difference]: With dead ends: 45193 [2023-12-20 02:58:47,135 INFO L226 Difference]: Without dead ends: 33451 [2023-12-20 02:58:47,154 INFO L412 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 [2023-12-20 02:58:47,154 INFO L413 NwaCegarLoop]: 322 mSDtfsCounter, 182 mSDsluCounter, 272 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 182 SdHoareTripleChecker+Valid, 594 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 [2023-12-20 02:58:47,155 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [182 Valid, 594 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 02:58:47,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33451 states. [2023-12-20 02:58:47,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33451 to 33165. [2023-12-20 02:58:47,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33165 states, 33164 states have (on average 1.5073272222892293) internal successors, (49989), 33164 states have internal predecessors, (49989), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:58:47,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33165 states to 33165 states and 49989 transitions. [2023-12-20 02:58:47,634 INFO L78 Accepts]: Start accepts. Automaton has 33165 states and 49989 transitions. Word has length 84 [2023-12-20 02:58:47,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:58:47,635 INFO L495 AbstractCegarLoop]: Abstraction has 33165 states and 49989 transitions. [2023-12-20 02:58:47,635 INFO L496 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) [2023-12-20 02:58:47,635 INFO L276 IsEmpty]: Start isEmpty. Operand 33165 states and 49989 transitions. [2023-12-20 02:58:47,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2023-12-20 02:58:47,641 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:58:47,642 INFO L195 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] [2023-12-20 02:58:47,642 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-12-20 02:58:47,642 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 02:58:47,642 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:58:47,642 INFO L85 PathProgramCache]: Analyzing trace with hash 1401966641, now seen corresponding path program 1 times [2023-12-20 02:58:47,642 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:58:47,642 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1479485500] [2023-12-20 02:58:47,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:58:47,643 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:58:47,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:58:47,720 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:58:47,721 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:58:47,721 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1479485500] [2023-12-20 02:58:47,721 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1479485500] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:58:47,721 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:58:47,721 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-20 02:58:47,721 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [927162032] [2023-12-20 02:58:47,721 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:58:47,721 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-20 02:58:47,721 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:58:47,722 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-20 02:58:47,722 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-20 02:58:47,722 INFO L87 Difference]: Start difference. First operand 33165 states and 49989 transitions. Second operand has 4 states, 4 states have (on average 21.0) internal successors, (84), 4 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) [2023-12-20 02:58:48,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:58:48,085 INFO L93 Difference]: Finished difference Result 91097 states and 137551 transitions. [2023-12-20 02:58:48,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-20 02:58:48,085 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.0) internal successors, (84), 4 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 [2023-12-20 02:58:48,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:58:48,176 INFO L225 Difference]: With dead ends: 91097 [2023-12-20 02:58:48,176 INFO L226 Difference]: Without dead ends: 60279 [2023-12-20 02:58:48,211 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-20 02:58:48,212 INFO L413 NwaCegarLoop]: 289 mSDtfsCounter, 202 mSDsluCounter, 438 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 202 SdHoareTripleChecker+Valid, 727 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-20 02:58:48,212 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [202 Valid, 727 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 02:58:48,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60279 states. [2023-12-20 02:58:49,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60279 to 59909. [2023-12-20 02:58:49,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59909 states, 59908 states have (on average 1.4955765507110903) internal successors, (89597), 59908 states have internal predecessors, (89597), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:58:49,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59909 states to 59909 states and 89597 transitions. [2023-12-20 02:58:49,330 INFO L78 Accepts]: Start accepts. Automaton has 59909 states and 89597 transitions. Word has length 84 [2023-12-20 02:58:49,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:58:49,330 INFO L495 AbstractCegarLoop]: Abstraction has 59909 states and 89597 transitions. [2023-12-20 02:58:49,330 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.0) internal successors, (84), 4 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) [2023-12-20 02:58:49,330 INFO L276 IsEmpty]: Start isEmpty. Operand 59909 states and 89597 transitions. [2023-12-20 02:58:49,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2023-12-20 02:58:49,336 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:58:49,336 INFO L195 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] [2023-12-20 02:58:49,336 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-12-20 02:58:49,336 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 02:58:49,336 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:58:49,336 INFO L85 PathProgramCache]: Analyzing trace with hash -1298454314, now seen corresponding path program 1 times [2023-12-20 02:58:49,336 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:58:49,336 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [989789650] [2023-12-20 02:58:49,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:58:49,337 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:58:49,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:58:49,369 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:58:49,370 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:58:49,370 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [989789650] [2023-12-20 02:58:49,371 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [989789650] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:58:49,371 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:58:49,371 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-20 02:58:49,371 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [480464484] [2023-12-20 02:58:49,372 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:58:49,372 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 02:58:49,372 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:58:49,372 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 02:58:49,372 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 02:58:49,372 INFO L87 Difference]: Start difference. First operand 59909 states and 89597 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) [2023-12-20 02:58:49,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:58:49,555 INFO L93 Difference]: Finished difference Result 77864 states and 116221 transitions. [2023-12-20 02:58:49,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 02:58:49,556 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 [2023-12-20 02:58:49,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:58:49,644 INFO L225 Difference]: With dead ends: 77864 [2023-12-20 02:58:49,644 INFO L226 Difference]: Without dead ends: 61418 [2023-12-20 02:58:49,675 INFO L412 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 [2023-12-20 02:58:49,676 INFO L413 NwaCegarLoop]: 299 mSDtfsCounter, 174 mSDsluCounter, 272 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 174 SdHoareTripleChecker+Valid, 571 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-20 02:58:49,677 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [174 Valid, 571 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 02:58:49,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61418 states. [2023-12-20 02:58:50,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61418 to 56368. [2023-12-20 02:58:50,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56368 states, 56367 states have (on average 1.4750651977220715) internal successors, (83145), 56367 states have internal predecessors, (83145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:58:50,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56368 states to 56368 states and 83145 transitions. [2023-12-20 02:58:50,625 INFO L78 Accepts]: Start accepts. Automaton has 56368 states and 83145 transitions. Word has length 84 [2023-12-20 02:58:50,625 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:58:50,625 INFO L495 AbstractCegarLoop]: Abstraction has 56368 states and 83145 transitions. [2023-12-20 02:58:50,625 INFO L496 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) [2023-12-20 02:58:50,626 INFO L276 IsEmpty]: Start isEmpty. Operand 56368 states and 83145 transitions. [2023-12-20 02:58:50,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2023-12-20 02:58:50,632 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:58:50,632 INFO L195 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] [2023-12-20 02:58:50,632 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-12-20 02:58:50,632 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 02:58:50,632 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:58:50,632 INFO L85 PathProgramCache]: Analyzing trace with hash 335873668, now seen corresponding path program 1 times [2023-12-20 02:58:50,633 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:58:50,633 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [722578303] [2023-12-20 02:58:50,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:58:50,633 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:58:50,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:58:50,663 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:58:50,663 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:58:50,663 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [722578303] [2023-12-20 02:58:50,663 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [722578303] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:58:50,663 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:58:50,663 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-20 02:58:50,663 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1116301288] [2023-12-20 02:58:50,663 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:58:50,664 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 02:58:50,664 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:58:50,664 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 02:58:50,664 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 02:58:50,664 INFO L87 Difference]: Start difference. First operand 56368 states and 83145 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) [2023-12-20 02:58:51,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:58:51,300 INFO L93 Difference]: Finished difference Result 145971 states and 215810 transitions. [2023-12-20 02:58:51,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 02:58:51,300 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 [2023-12-20 02:58:51,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:58:51,458 INFO L225 Difference]: With dead ends: 145971 [2023-12-20 02:58:51,458 INFO L226 Difference]: Without dead ends: 97794 [2023-12-20 02:58:51,483 INFO L412 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 [2023-12-20 02:58:51,483 INFO L413 NwaCegarLoop]: 290 mSDtfsCounter, 211 mSDsluCounter, 270 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 211 SdHoareTripleChecker+Valid, 560 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 [2023-12-20 02:58:51,484 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [211 Valid, 560 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 02:58:51,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97794 states. [2023-12-20 02:58:52,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97794 to 97640. [2023-12-20 02:58:52,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97640 states, 97639 states have (on average 1.4680301928532655) internal successors, (143337), 97639 states have internal predecessors, (143337), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:58:52,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97640 states to 97640 states and 143337 transitions. [2023-12-20 02:58:52,865 INFO L78 Accepts]: Start accepts. Automaton has 97640 states and 143337 transitions. Word has length 84 [2023-12-20 02:58:52,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:58:52,865 INFO L495 AbstractCegarLoop]: Abstraction has 97640 states and 143337 transitions. [2023-12-20 02:58:52,866 INFO L496 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) [2023-12-20 02:58:52,866 INFO L276 IsEmpty]: Start isEmpty. Operand 97640 states and 143337 transitions. [2023-12-20 02:58:52,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2023-12-20 02:58:52,875 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:58:52,875 INFO L195 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] [2023-12-20 02:58:52,875 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-12-20 02:58:52,875 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 02:58:52,876 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:58:52,876 INFO L85 PathProgramCache]: Analyzing trace with hash -1506222844, now seen corresponding path program 1 times [2023-12-20 02:58:52,876 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:58:52,876 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2065157778] [2023-12-20 02:58:52,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:58:52,876 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:58:52,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:58:52,909 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:58:52,909 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:58:52,909 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2065157778] [2023-12-20 02:58:52,909 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2065157778] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:58:52,909 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:58:52,909 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-20 02:58:52,909 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [332675144] [2023-12-20 02:58:52,909 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:58:52,910 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 02:58:52,910 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:58:52,910 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 02:58:52,910 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 02:58:52,910 INFO L87 Difference]: Start difference. First operand 97640 states and 143337 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) [2023-12-20 02:58:53,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:58:53,688 INFO L93 Difference]: Finished difference Result 187608 states and 275403 transitions. [2023-12-20 02:58:53,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 02:58:53,689 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 [2023-12-20 02:58:53,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:58:53,909 INFO L225 Difference]: With dead ends: 187608 [2023-12-20 02:58:53,909 INFO L226 Difference]: Without dead ends: 116802 [2023-12-20 02:58:53,968 INFO L412 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 [2023-12-20 02:58:53,971 INFO L413 NwaCegarLoop]: 399 mSDtfsCounter, 188 mSDsluCounter, 269 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 188 SdHoareTripleChecker+Valid, 668 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 [2023-12-20 02:58:53,971 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [188 Valid, 668 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 02:58:54,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116802 states. [2023-12-20 02:58:55,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116802 to 115752. [2023-12-20 02:58:55,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 115752 states, 115751 states have (on average 1.443339582379418) internal successors, (167068), 115751 states have internal predecessors, (167068), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:58:55,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115752 states to 115752 states and 167068 transitions. [2023-12-20 02:58:55,953 INFO L78 Accepts]: Start accepts. Automaton has 115752 states and 167068 transitions. Word has length 84 [2023-12-20 02:58:55,954 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:58:55,954 INFO L495 AbstractCegarLoop]: Abstraction has 115752 states and 167068 transitions. [2023-12-20 02:58:55,954 INFO L496 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) [2023-12-20 02:58:55,954 INFO L276 IsEmpty]: Start isEmpty. Operand 115752 states and 167068 transitions. [2023-12-20 02:58:55,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2023-12-20 02:58:55,963 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:58:55,964 INFO L195 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] [2023-12-20 02:58:55,964 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-12-20 02:58:55,964 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 02:58:55,964 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:58:55,964 INFO L85 PathProgramCache]: Analyzing trace with hash 2020876259, now seen corresponding path program 1 times [2023-12-20 02:58:55,964 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:58:55,965 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1928318333] [2023-12-20 02:58:55,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:58:55,965 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:58:55,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:58:55,999 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:58:55,999 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:58:55,999 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1928318333] [2023-12-20 02:58:55,999 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1928318333] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:58:55,999 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:58:56,000 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-20 02:58:56,000 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1687289092] [2023-12-20 02:58:56,000 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:58:56,000 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 02:58:56,000 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:58:56,000 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 02:58:56,000 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 02:58:56,001 INFO L87 Difference]: Start difference. First operand 115752 states and 167068 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) [2023-12-20 02:58:56,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:58:56,988 INFO L93 Difference]: Finished difference Result 245738 states and 353728 transitions. [2023-12-20 02:58:56,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 02:58:56,988 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 [2023-12-20 02:58:56,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:58:57,258 INFO L225 Difference]: With dead ends: 245738 [2023-12-20 02:58:57,258 INFO L226 Difference]: Without dead ends: 139408 [2023-12-20 02:58:57,349 INFO L412 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 [2023-12-20 02:58:57,350 INFO L413 NwaCegarLoop]: 290 mSDtfsCounter, 201 mSDsluCounter, 268 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 201 SdHoareTripleChecker+Valid, 558 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 [2023-12-20 02:58:57,350 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [201 Valid, 558 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 02:58:57,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139408 states. [2023-12-20 02:58:59,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139408 to 138470. [2023-12-20 02:58:59,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 138470 states, 138469 states have (on average 1.4137243715199792) internal successors, (195757), 138469 states have internal predecessors, (195757), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:58:59,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138470 states to 138470 states and 195757 transitions. [2023-12-20 02:58:59,352 INFO L78 Accepts]: Start accepts. Automaton has 138470 states and 195757 transitions. Word has length 84 [2023-12-20 02:58:59,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:58:59,352 INFO L495 AbstractCegarLoop]: Abstraction has 138470 states and 195757 transitions. [2023-12-20 02:58:59,352 INFO L496 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) [2023-12-20 02:58:59,352 INFO L276 IsEmpty]: Start isEmpty. Operand 138470 states and 195757 transitions. [2023-12-20 02:58:59,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2023-12-20 02:58:59,361 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:58:59,361 INFO L195 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] [2023-12-20 02:58:59,361 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-12-20 02:58:59,361 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 02:58:59,362 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:58:59,362 INFO L85 PathProgramCache]: Analyzing trace with hash 782936475, now seen corresponding path program 1 times [2023-12-20 02:58:59,362 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:58:59,362 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [610628225] [2023-12-20 02:58:59,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:58:59,362 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:58:59,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:58:59,451 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:58:59,452 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:58:59,452 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [610628225] [2023-12-20 02:58:59,452 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [610628225] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:58:59,452 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:58:59,452 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-20 02:58:59,452 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1361118746] [2023-12-20 02:58:59,452 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:58:59,452 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-20 02:58:59,452 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:58:59,453 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-20 02:58:59,453 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-20 02:58:59,453 INFO L87 Difference]: Start difference. First operand 138470 states and 195757 transitions. Second operand has 7 states, 7 states have (on average 12.142857142857142) 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) [2023-12-20 02:59:00,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:59:00,993 INFO L93 Difference]: Finished difference Result 331715 states and 472779 transitions. [2023-12-20 02:59:00,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-20 02:59:00,994 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.142857142857142) 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 [2023-12-20 02:59:00,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:59:01,533 INFO L225 Difference]: With dead ends: 331715 [2023-12-20 02:59:01,533 INFO L226 Difference]: Without dead ends: 281808 [2023-12-20 02:59:01,609 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2023-12-20 02:59:01,611 INFO L413 NwaCegarLoop]: 450 mSDtfsCounter, 1769 mSDsluCounter, 1257 mSDsCounter, 0 mSdLazyCounter, 100 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1769 SdHoareTripleChecker+Valid, 1707 SdHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-20 02:59:01,611 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1769 Valid, 1707 Invalid, 101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 100 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 02:59:01,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 281808 states. [2023-12-20 02:59:04,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 281808 to 187766. [2023-12-20 02:59:04,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 187766 states, 187765 states have (on average 1.414203925119165) internal successors, (265538), 187765 states have internal predecessors, (265538), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:59:04,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187766 states to 187766 states and 265538 transitions. [2023-12-20 02:59:04,881 INFO L78 Accepts]: Start accepts. Automaton has 187766 states and 265538 transitions. Word has length 85 [2023-12-20 02:59:04,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:59:04,882 INFO L495 AbstractCegarLoop]: Abstraction has 187766 states and 265538 transitions. [2023-12-20 02:59:04,882 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.142857142857142) 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) [2023-12-20 02:59:04,882 INFO L276 IsEmpty]: Start isEmpty. Operand 187766 states and 265538 transitions. [2023-12-20 02:59:04,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2023-12-20 02:59:04,890 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:59:04,890 INFO L195 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] [2023-12-20 02:59:04,890 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-12-20 02:59:04,890 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 02:59:04,891 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:59:04,891 INFO L85 PathProgramCache]: Analyzing trace with hash 1882709334, now seen corresponding path program 1 times [2023-12-20 02:59:04,891 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:59:04,891 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1320552723] [2023-12-20 02:59:04,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:59:04,891 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:59:04,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:59:04,967 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:59:04,967 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:59:04,967 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1320552723] [2023-12-20 02:59:04,967 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1320552723] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:59:04,967 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:59:04,967 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-20 02:59:04,968 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [470618658] [2023-12-20 02:59:04,968 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:59:04,968 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-20 02:59:04,968 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:59:04,968 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-20 02:59:04,968 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-20 02:59:04,969 INFO L87 Difference]: Start difference. First operand 187766 states and 265538 transitions. Second operand has 7 states, 7 states have (on average 12.142857142857142) 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) [2023-12-20 02:59:06,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:59:06,757 INFO L93 Difference]: Finished difference Result 346408 states and 492955 transitions. [2023-12-20 02:59:06,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-20 02:59:06,758 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.142857142857142) 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 [2023-12-20 02:59:06,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:59:07,311 INFO L225 Difference]: With dead ends: 346408 [2023-12-20 02:59:07,311 INFO L226 Difference]: Without dead ends: 313889 [2023-12-20 02:59:07,381 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2023-12-20 02:59:07,382 INFO L413 NwaCegarLoop]: 439 mSDtfsCounter, 1866 mSDsluCounter, 1271 mSDsCounter, 0 mSdLazyCounter, 92 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1866 SdHoareTripleChecker+Valid, 1710 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 92 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-20 02:59:07,382 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1866 Valid, 1710 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 92 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-20 02:59:07,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 313889 states. [2023-12-20 02:59:10,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 313889 to 208203. [2023-12-20 02:59:10,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 208203 states, 208202 states have (on average 1.415879770607391) internal successors, (294789), 208202 states have internal predecessors, (294789), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:59:11,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208203 states to 208203 states and 294789 transitions. [2023-12-20 02:59:11,428 INFO L78 Accepts]: Start accepts. Automaton has 208203 states and 294789 transitions. Word has length 85 [2023-12-20 02:59:11,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:59:11,429 INFO L495 AbstractCegarLoop]: Abstraction has 208203 states and 294789 transitions. [2023-12-20 02:59:11,429 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.142857142857142) 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) [2023-12-20 02:59:11,429 INFO L276 IsEmpty]: Start isEmpty. Operand 208203 states and 294789 transitions. [2023-12-20 02:59:11,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2023-12-20 02:59:11,436 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:59:11,436 INFO L195 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] [2023-12-20 02:59:11,436 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-12-20 02:59:11,437 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 02:59:11,437 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:59:11,437 INFO L85 PathProgramCache]: Analyzing trace with hash -657030305, now seen corresponding path program 1 times [2023-12-20 02:59:11,437 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:59:11,437 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1395431312] [2023-12-20 02:59:11,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:59:11,437 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:59:11,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:59:11,517 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:59:11,517 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:59:11,517 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1395431312] [2023-12-20 02:59:11,517 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1395431312] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:59:11,517 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:59:11,518 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-20 02:59:11,518 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [694235582] [2023-12-20 02:59:11,518 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:59:11,518 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-20 02:59:11,518 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:59:11,518 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-20 02:59:11,518 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-20 02:59:11,519 INFO L87 Difference]: Start difference. First operand 208203 states and 294789 transitions. Second operand has 7 states, 7 states have (on average 12.142857142857142) 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) [2023-12-20 02:59:13,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:59:13,276 INFO L93 Difference]: Finished difference Result 342781 states and 487282 transitions. [2023-12-20 02:59:13,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-20 02:59:13,276 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.142857142857142) 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 [2023-12-20 02:59:13,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:59:14,172 INFO L225 Difference]: With dead ends: 342781 [2023-12-20 02:59:14,173 INFO L226 Difference]: Without dead ends: 328226 [2023-12-20 02:59:14,212 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2023-12-20 02:59:14,213 INFO L413 NwaCegarLoop]: 432 mSDtfsCounter, 1773 mSDsluCounter, 1388 mSDsCounter, 0 mSdLazyCounter, 107 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1773 SdHoareTripleChecker+Valid, 1820 SdHoareTripleChecker+Invalid, 107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 107 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-20 02:59:14,213 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1773 Valid, 1820 Invalid, 107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 107 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-20 02:59:14,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 328226 states. [2023-12-20 02:59:17,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 328226 to 222540. [2023-12-20 02:59:17,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 222540 states, 222539 states have (on average 1.4160214614067645) internal successors, (315120), 222539 states have internal predecessors, (315120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:59:18,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 222540 states to 222540 states and 315120 transitions. [2023-12-20 02:59:18,203 INFO L78 Accepts]: Start accepts. Automaton has 222540 states and 315120 transitions. Word has length 85 [2023-12-20 02:59:18,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:59:18,203 INFO L495 AbstractCegarLoop]: Abstraction has 222540 states and 315120 transitions. [2023-12-20 02:59:18,203 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.142857142857142) 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) [2023-12-20 02:59:18,203 INFO L276 IsEmpty]: Start isEmpty. Operand 222540 states and 315120 transitions. [2023-12-20 02:59:18,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2023-12-20 02:59:18,210 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:59:18,210 INFO L195 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] [2023-12-20 02:59:18,210 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2023-12-20 02:59:18,210 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 02:59:18,211 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:59:18,211 INFO L85 PathProgramCache]: Analyzing trace with hash 27365530, now seen corresponding path program 1 times [2023-12-20 02:59:18,211 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:59:18,211 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1247998027] [2023-12-20 02:59:18,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:59:18,211 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:59:18,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:59:18,290 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:59:18,291 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:59:18,291 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1247998027] [2023-12-20 02:59:18,291 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1247998027] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:59:18,291 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:59:18,291 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-20 02:59:18,291 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [467437572] [2023-12-20 02:59:18,291 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:59:18,291 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-20 02:59:18,291 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:59:18,292 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-20 02:59:18,292 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-20 02:59:18,292 INFO L87 Difference]: Start difference. First operand 222540 states and 315120 transitions. Second operand has 7 states, 7 states have (on average 12.142857142857142) 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) [2023-12-20 02:59:19,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:59:19,856 INFO L93 Difference]: Finished difference Result 438695 states and 624344 transitions. [2023-12-20 02:59:19,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-20 02:59:19,856 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.142857142857142) 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 [2023-12-20 02:59:19,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:59:20,660 INFO L225 Difference]: With dead ends: 438695 [2023-12-20 02:59:20,660 INFO L226 Difference]: Without dead ends: 377292 [2023-12-20 02:59:20,780 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2023-12-20 02:59:20,781 INFO L413 NwaCegarLoop]: 466 mSDtfsCounter, 1676 mSDsluCounter, 1621 mSDsCounter, 0 mSdLazyCounter, 98 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1676 SdHoareTripleChecker+Valid, 2087 SdHoareTripleChecker+Invalid, 99 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 98 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-20 02:59:20,781 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1676 Valid, 2087 Invalid, 99 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 98 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 02:59:21,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 377292 states. [2023-12-20 02:59:24,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 377292 to 255332. [2023-12-20 02:59:24,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 255332 states, 255331 states have (on average 1.4173053800752748) internal successors, (361882), 255331 states have internal predecessors, (361882), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:59:25,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 255332 states to 255332 states and 361882 transitions. [2023-12-20 02:59:25,664 INFO L78 Accepts]: Start accepts. Automaton has 255332 states and 361882 transitions. Word has length 85 [2023-12-20 02:59:25,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:59:25,664 INFO L495 AbstractCegarLoop]: Abstraction has 255332 states and 361882 transitions. [2023-12-20 02:59:25,664 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.142857142857142) 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) [2023-12-20 02:59:25,664 INFO L276 IsEmpty]: Start isEmpty. Operand 255332 states and 361882 transitions. [2023-12-20 02:59:25,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2023-12-20 02:59:25,671 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:59:25,672 INFO L195 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] [2023-12-20 02:59:25,672 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2023-12-20 02:59:25,672 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 02:59:25,672 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:59:25,672 INFO L85 PathProgramCache]: Analyzing trace with hash 975723729, now seen corresponding path program 1 times [2023-12-20 02:59:25,672 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:59:25,672 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [941766901] [2023-12-20 02:59:25,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:59:25,672 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:59:25,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:59:25,742 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:59:25,742 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:59:25,742 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [941766901] [2023-12-20 02:59:25,742 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [941766901] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:59:25,742 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:59:25,743 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-20 02:59:25,743 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [239109606] [2023-12-20 02:59:25,743 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:59:25,743 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-20 02:59:25,743 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:59:25,743 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-20 02:59:25,743 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-20 02:59:25,743 INFO L87 Difference]: Start difference. First operand 255332 states and 361882 transitions. Second operand has 7 states, 7 states have (on average 12.142857142857142) 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) [2023-12-20 02:59:27,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:59:27,419 INFO L93 Difference]: Finished difference Result 476340 states and 677605 transitions. [2023-12-20 02:59:27,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-20 02:59:27,420 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.142857142857142) 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 [2023-12-20 02:59:27,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:59:28,631 INFO L225 Difference]: With dead ends: 476340 [2023-12-20 02:59:28,631 INFO L226 Difference]: Without dead ends: 423668 [2023-12-20 02:59:28,696 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2023-12-20 02:59:28,696 INFO L413 NwaCegarLoop]: 472 mSDtfsCounter, 1685 mSDsluCounter, 1399 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1685 SdHoareTripleChecker+Valid, 1871 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-20 02:59:28,697 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1685 Valid, 1871 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 02:59:28,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 423668 states. [2023-12-20 02:59:32,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 423668 to 281710. [2023-12-20 02:59:32,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 281710 states, 281709 states have (on average 1.4183785395567767) internal successors, (399570), 281709 states have internal predecessors, (399570), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:59:33,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 281710 states to 281710 states and 399570 transitions. [2023-12-20 02:59:33,689 INFO L78 Accepts]: Start accepts. Automaton has 281710 states and 399570 transitions. Word has length 85 [2023-12-20 02:59:33,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:59:33,689 INFO L495 AbstractCegarLoop]: Abstraction has 281710 states and 399570 transitions. [2023-12-20 02:59:33,689 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.142857142857142) 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) [2023-12-20 02:59:33,690 INFO L276 IsEmpty]: Start isEmpty. Operand 281710 states and 399570 transitions. [2023-12-20 02:59:33,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2023-12-20 02:59:33,702 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:59:33,702 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 02:59:33,702 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2023-12-20 02:59:33,702 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 02:59:33,702 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:59:33,702 INFO L85 PathProgramCache]: Analyzing trace with hash -1224872690, now seen corresponding path program 1 times [2023-12-20 02:59:33,702 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:59:33,703 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1891850025] [2023-12-20 02:59:33,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:59:33,703 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:59:33,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:59:33,769 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:59:33,769 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:59:33,769 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1891850025] [2023-12-20 02:59:33,770 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1891850025] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:59:33,770 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:59:33,770 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-20 02:59:33,770 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2096126471] [2023-12-20 02:59:33,770 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:59:33,770 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-20 02:59:33,770 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:59:33,770 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-20 02:59:33,770 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-20 02:59:33,771 INFO L87 Difference]: Start difference. First operand 281710 states and 399570 transitions. Second operand has 7 states, 7 states have (on average 12.857142857142858) internal successors, (90), 6 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:59:40,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:59:40,106 INFO L93 Difference]: Finished difference Result 1389137 states and 1954146 transitions. [2023-12-20 02:59:40,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-20 02:59:40,106 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.857142857142858) internal successors, (90), 6 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 90 [2023-12-20 02:59:40,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:59:43,771 INFO L225 Difference]: With dead ends: 1389137 [2023-12-20 02:59:43,772 INFO L226 Difference]: Without dead ends: 1255203 [2023-12-20 02:59:44,015 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=136, Unknown=0, NotChecked=0, Total=210 [2023-12-20 02:59:44,019 INFO L413 NwaCegarLoop]: 173 mSDtfsCounter, 3407 mSDsluCounter, 473 mSDsCounter, 0 mSdLazyCounter, 444 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3407 SdHoareTripleChecker+Valid, 646 SdHoareTripleChecker+Invalid, 466 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 444 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-20 02:59:44,019 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3407 Valid, 646 Invalid, 466 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 444 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-20 02:59:45,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1255203 states. [2023-12-20 02:59:54,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1255203 to 282082. [2023-12-20 02:59:55,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 282082 states, 282081 states have (on average 1.4181245812373042) internal successors, (400026), 282081 states have internal predecessors, (400026), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:59:56,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 282082 states to 282082 states and 400026 transitions. [2023-12-20 02:59:56,341 INFO L78 Accepts]: Start accepts. Automaton has 282082 states and 400026 transitions. Word has length 90 [2023-12-20 02:59:56,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:59:56,341 INFO L495 AbstractCegarLoop]: Abstraction has 282082 states and 400026 transitions. [2023-12-20 02:59:56,341 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.857142857142858) internal successors, (90), 6 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:59:56,341 INFO L276 IsEmpty]: Start isEmpty. Operand 282082 states and 400026 transitions. [2023-12-20 02:59:56,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2023-12-20 02:59:56,354 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:59:56,354 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 02:59:56,354 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2023-12-20 02:59:56,354 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 02:59:56,355 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:59:56,355 INFO L85 PathProgramCache]: Analyzing trace with hash 1754100398, now seen corresponding path program 1 times [2023-12-20 02:59:56,355 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:59:56,355 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1585758027] [2023-12-20 02:59:56,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:59:56,355 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:59:56,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:59:56,431 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:59:56,431 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:59:56,431 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1585758027] [2023-12-20 02:59:56,431 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1585758027] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:59:56,431 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:59:56,431 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-20 02:59:56,431 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [189194018] [2023-12-20 02:59:56,431 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:59:56,432 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-20 02:59:56,432 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:59:56,432 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-20 02:59:56,432 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-20 02:59:56,433 INFO L87 Difference]: Start difference. First operand 282082 states and 400026 transitions. Second operand has 7 states, 7 states have (on average 12.857142857142858) internal successors, (90), 6 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:00:01,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:00:01,443 INFO L93 Difference]: Finished difference Result 1200633 states and 1683797 transitions. [2023-12-20 03:00:01,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-20 03:00:01,444 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.857142857142858) internal successors, (90), 6 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 90 [2023-12-20 03:00:01,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:00:04,294 INFO L225 Difference]: With dead ends: 1200633 [2023-12-20 03:00:04,294 INFO L226 Difference]: Without dead ends: 1104163 [2023-12-20 03:00:04,628 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=136, Unknown=0, NotChecked=0, Total=210 [2023-12-20 03:00:04,629 INFO L413 NwaCegarLoop]: 227 mSDtfsCounter, 2684 mSDsluCounter, 463 mSDsCounter, 0 mSdLazyCounter, 495 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2684 SdHoareTripleChecker+Valid, 690 SdHoareTripleChecker+Invalid, 511 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 495 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-20 03:00:04,629 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2684 Valid, 690 Invalid, 511 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 495 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-20 03:00:05,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1104163 states. [2023-12-20 03:00:13,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1104163 to 282719. [2023-12-20 03:00:14,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 282719 states, 282718 states have (on average 1.4176529262374522) internal successors, (400796), 282718 states have internal predecessors, (400796), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:00:15,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 282719 states to 282719 states and 400796 transitions. [2023-12-20 03:00:15,193 INFO L78 Accepts]: Start accepts. Automaton has 282719 states and 400796 transitions. Word has length 90 [2023-12-20 03:00:15,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:00:15,193 INFO L495 AbstractCegarLoop]: Abstraction has 282719 states and 400796 transitions. [2023-12-20 03:00:15,193 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.857142857142858) internal successors, (90), 6 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:00:15,194 INFO L276 IsEmpty]: Start isEmpty. Operand 282719 states and 400796 transitions. [2023-12-20 03:00:15,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2023-12-20 03:00:15,206 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:00:15,207 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 03:00:15,207 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2023-12-20 03:00:15,207 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 03:00:15,207 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:00:15,207 INFO L85 PathProgramCache]: Analyzing trace with hash -1018406798, now seen corresponding path program 1 times [2023-12-20 03:00:15,207 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:00:15,207 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1285993975] [2023-12-20 03:00:15,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:00:15,207 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:00:15,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:00:15,296 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:00:15,296 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:00:15,296 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1285993975] [2023-12-20 03:00:15,296 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1285993975] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:00:15,296 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:00:15,296 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-20 03:00:15,296 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [64314108] [2023-12-20 03:00:15,296 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:00:15,296 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-20 03:00:15,296 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:00:15,297 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-20 03:00:15,297 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-20 03:00:15,297 INFO L87 Difference]: Start difference. First operand 282719 states and 400796 transitions. Second operand has 7 states, 7 states have (on average 12.857142857142858) internal successors, (90), 6 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:00:20,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:00:20,460 INFO L93 Difference]: Finished difference Result 1227345 states and 1731466 transitions. [2023-12-20 03:00:20,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-20 03:00:20,461 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.857142857142858) internal successors, (90), 6 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 90 [2023-12-20 03:00:20,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:00:23,695 INFO L225 Difference]: With dead ends: 1227345 [2023-12-20 03:00:23,695 INFO L226 Difference]: Without dead ends: 1112313 [2023-12-20 03:00:24,030 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=136, Unknown=0, NotChecked=0, Total=210 [2023-12-20 03:00:24,031 INFO L413 NwaCegarLoop]: 176 mSDtfsCounter, 3712 mSDsluCounter, 494 mSDsCounter, 0 mSdLazyCounter, 462 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3712 SdHoareTripleChecker+Valid, 670 SdHoareTripleChecker+Invalid, 484 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 462 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-20 03:00:24,031 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3712 Valid, 670 Invalid, 484 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 462 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-20 03:00:24,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1112313 states. [2023-12-20 03:00:33,216 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1112313 to 282981. [2023-12-20 03:00:33,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 282981 states, 282980 states have (on average 1.4174535302848257) internal successors, (401111), 282980 states have internal predecessors, (401111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:00:34,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 282981 states to 282981 states and 401111 transitions. [2023-12-20 03:00:34,419 INFO L78 Accepts]: Start accepts. Automaton has 282981 states and 401111 transitions. Word has length 90 [2023-12-20 03:00:34,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:00:34,420 INFO L495 AbstractCegarLoop]: Abstraction has 282981 states and 401111 transitions. [2023-12-20 03:00:34,420 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.857142857142858) internal successors, (90), 6 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:00:34,420 INFO L276 IsEmpty]: Start isEmpty. Operand 282981 states and 401111 transitions. [2023-12-20 03:00:34,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2023-12-20 03:00:34,431 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:00:34,431 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 03:00:34,432 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2023-12-20 03:00:34,432 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 03:00:34,432 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:00:34,432 INFO L85 PathProgramCache]: Analyzing trace with hash 799926217, now seen corresponding path program 1 times [2023-12-20 03:00:34,432 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:00:34,432 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2041267594] [2023-12-20 03:00:34,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:00:34,432 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:00:34,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:00:34,494 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:00:34,495 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:00:34,495 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2041267594] [2023-12-20 03:00:34,495 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2041267594] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:00:34,495 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:00:34,495 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-20 03:00:34,495 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [593421950] [2023-12-20 03:00:34,495 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:00:34,495 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-20 03:00:34,495 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:00:34,496 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-20 03:00:34,496 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-20 03:00:34,496 INFO L87 Difference]: Start difference. First operand 282981 states and 401111 transitions. Second operand has 7 states, 7 states have (on average 12.857142857142858) internal successors, (90), 6 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:00:38,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:00:38,396 INFO L93 Difference]: Finished difference Result 970101 states and 1366303 transitions. [2023-12-20 03:00:38,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-20 03:00:38,397 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.857142857142858) internal successors, (90), 6 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 90 [2023-12-20 03:00:38,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:00:41,029 INFO L225 Difference]: With dead ends: 970101 [2023-12-20 03:00:41,029 INFO L226 Difference]: Without dead ends: 892818 [2023-12-20 03:00:41,304 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=136, Unknown=0, NotChecked=0, Total=210 [2023-12-20 03:00:41,304 INFO L413 NwaCegarLoop]: 183 mSDtfsCounter, 2911 mSDsluCounter, 368 mSDsCounter, 0 mSdLazyCounter, 353 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2911 SdHoareTripleChecker+Valid, 551 SdHoareTripleChecker+Invalid, 377 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 353 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-20 03:00:41,305 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2911 Valid, 551 Invalid, 377 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 353 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-20 03:00:42,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 892818 states. [2023-12-20 03:00:48,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 892818 to 375607. [2023-12-20 03:00:48,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 375607 states, 375606 states have (on average 1.4144662225843037) internal successors, (531282), 375606 states have internal predecessors, (531282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:00:49,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 375607 states to 375607 states and 531282 transitions. [2023-12-20 03:00:49,925 INFO L78 Accepts]: Start accepts. Automaton has 375607 states and 531282 transitions. Word has length 90 [2023-12-20 03:00:49,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:00:49,925 INFO L495 AbstractCegarLoop]: Abstraction has 375607 states and 531282 transitions. [2023-12-20 03:00:49,925 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.857142857142858) internal successors, (90), 6 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:00:49,925 INFO L276 IsEmpty]: Start isEmpty. Operand 375607 states and 531282 transitions. [2023-12-20 03:00:49,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2023-12-20 03:00:49,948 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:00:49,948 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 03:00:49,948 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2023-12-20 03:00:49,948 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 03:00:49,948 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:00:49,948 INFO L85 PathProgramCache]: Analyzing trace with hash -355260238, now seen corresponding path program 1 times [2023-12-20 03:00:49,949 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:00:49,949 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [128588527] [2023-12-20 03:00:49,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:00:49,949 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:00:49,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:00:50,014 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:00:50,015 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:00:50,015 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [128588527] [2023-12-20 03:00:50,015 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [128588527] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:00:50,015 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:00:50,015 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-20 03:00:50,015 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [936842450] [2023-12-20 03:00:50,015 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:00:50,015 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-20 03:00:50,016 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:00:50,016 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-20 03:00:50,016 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-20 03:00:50,017 INFO L87 Difference]: Start difference. First operand 375607 states and 531282 transitions. Second operand has 7 states, 7 states have (on average 12.857142857142858) internal successors, (90), 6 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:00:55,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:00:55,425 INFO L93 Difference]: Finished difference Result 1240886 states and 1745436 transitions. [2023-12-20 03:00:55,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-20 03:00:55,425 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.857142857142858) internal successors, (90), 6 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 90 [2023-12-20 03:00:55,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:00:58,925 INFO L225 Difference]: With dead ends: 1240886 [2023-12-20 03:00:58,925 INFO L226 Difference]: Without dead ends: 1078424 [2023-12-20 03:00:59,143 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=136, Unknown=0, NotChecked=0, Total=210 [2023-12-20 03:00:59,143 INFO L413 NwaCegarLoop]: 176 mSDtfsCounter, 2883 mSDsluCounter, 319 mSDsCounter, 0 mSdLazyCounter, 320 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2883 SdHoareTripleChecker+Valid, 495 SdHoareTripleChecker+Invalid, 344 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 320 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-20 03:00:59,146 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2883 Valid, 495 Invalid, 344 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 320 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-20 03:00:59,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1078424 states. [2023-12-20 03:01:08,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1078424 to 375727. [2023-12-20 03:01:08,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 375727 states, 375726 states have (on average 1.4143977260024592) internal successors, (531426), 375726 states have internal predecessors, (531426), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:01:10,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 375727 states to 375727 states and 531426 transitions. [2023-12-20 03:01:10,010 INFO L78 Accepts]: Start accepts. Automaton has 375727 states and 531426 transitions. Word has length 90 [2023-12-20 03:01:10,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:01:10,010 INFO L495 AbstractCegarLoop]: Abstraction has 375727 states and 531426 transitions. [2023-12-20 03:01:10,010 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.857142857142858) internal successors, (90), 6 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:01:10,010 INFO L276 IsEmpty]: Start isEmpty. Operand 375727 states and 531426 transitions. [2023-12-20 03:01:10,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2023-12-20 03:01:10,031 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:01:10,031 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 03:01:10,031 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2023-12-20 03:01:10,031 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 03:01:10,032 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:01:10,032 INFO L85 PathProgramCache]: Analyzing trace with hash 1119772922, now seen corresponding path program 1 times [2023-12-20 03:01:10,032 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:01:10,032 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [242928578] [2023-12-20 03:01:10,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:01:10,032 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:01:10,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:01:10,449 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:01:10,450 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:01:10,450 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [242928578] [2023-12-20 03:01:10,450 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [242928578] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:01:10,450 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:01:10,450 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-12-20 03:01:10,450 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [439071523] [2023-12-20 03:01:10,450 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:01:10,450 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-12-20 03:01:10,450 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:01:10,450 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-12-20 03:01:10,451 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2023-12-20 03:01:10,451 INFO L87 Difference]: Start difference. First operand 375727 states and 531426 transitions. Second operand has 12 states, 12 states have (on average 7.666666666666667) internal successors, (92), 11 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:01:16,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:01:16,637 INFO L93 Difference]: Finished difference Result 1551059 states and 2190796 transitions. [2023-12-20 03:01:16,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-12-20 03:01:16,638 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 7.666666666666667) internal successors, (92), 11 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 92 [2023-12-20 03:01:16,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:01:20,663 INFO L225 Difference]: With dead ends: 1551059 [2023-12-20 03:01:20,663 INFO L226 Difference]: Without dead ends: 1451925 [2023-12-20 03:01:20,923 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=128, Invalid=378, Unknown=0, NotChecked=0, Total=506 [2023-12-20 03:01:20,924 INFO L413 NwaCegarLoop]: 507 mSDtfsCounter, 2338 mSDsluCounter, 3732 mSDsCounter, 0 mSdLazyCounter, 647 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2338 SdHoareTripleChecker+Valid, 4239 SdHoareTripleChecker+Invalid, 651 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 647 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-20 03:01:20,924 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2338 Valid, 4239 Invalid, 651 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 647 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-20 03:01:22,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1451925 states. [2023-12-20 03:01:32,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1451925 to 375687. [2023-12-20 03:01:32,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 375687 states, 375686 states have (on average 1.4143460230085763) internal successors, (531350), 375686 states have internal predecessors, (531350), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:01:34,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 375687 states to 375687 states and 531350 transitions. [2023-12-20 03:01:34,272 INFO L78 Accepts]: Start accepts. Automaton has 375687 states and 531350 transitions. Word has length 92 [2023-12-20 03:01:34,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:01:34,272 INFO L495 AbstractCegarLoop]: Abstraction has 375687 states and 531350 transitions. [2023-12-20 03:01:34,272 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 7.666666666666667) internal successors, (92), 11 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:01:34,272 INFO L276 IsEmpty]: Start isEmpty. Operand 375687 states and 531350 transitions. [2023-12-20 03:01:34,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2023-12-20 03:01:34,286 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:01:34,287 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 03:01:34,287 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2023-12-20 03:01:34,287 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 03:01:34,288 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:01:34,288 INFO L85 PathProgramCache]: Analyzing trace with hash 1262702133, now seen corresponding path program 1 times [2023-12-20 03:01:34,288 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:01:34,288 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1214987509] [2023-12-20 03:01:34,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:01:34,288 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:01:34,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:01:35,247 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:01:35,247 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:01:35,247 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1214987509] [2023-12-20 03:01:35,247 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1214987509] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:01:35,247 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:01:35,248 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-12-20 03:01:35,248 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [81014086] [2023-12-20 03:01:35,248 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:01:35,248 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-12-20 03:01:35,248 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:01:35,248 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-12-20 03:01:35,248 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2023-12-20 03:01:35,249 INFO L87 Difference]: Start difference. First operand 375687 states and 531350 transitions. Second operand has 13 states, 13 states have (on average 7.076923076923077) internal successors, (92), 12 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:01:41,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:01:41,487 INFO L93 Difference]: Finished difference Result 1283246 states and 1812061 transitions. [2023-12-20 03:01:41,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-12-20 03:01:41,488 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 7.076923076923077) internal successors, (92), 12 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 92 [2023-12-20 03:01:41,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:01:45,113 INFO L225 Difference]: With dead ends: 1283246 [2023-12-20 03:01:45,113 INFO L226 Difference]: Without dead ends: 1234588 [2023-12-20 03:01:45,605 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 175 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=253, Invalid=677, Unknown=0, NotChecked=0, Total=930 [2023-12-20 03:01:45,606 INFO L413 NwaCegarLoop]: 660 mSDtfsCounter, 4714 mSDsluCounter, 3640 mSDsCounter, 0 mSdLazyCounter, 658 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4714 SdHoareTripleChecker+Valid, 4300 SdHoareTripleChecker+Invalid, 666 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 658 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-20 03:01:45,606 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4714 Valid, 4300 Invalid, 666 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 658 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-20 03:01:46,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1234588 states. [2023-12-20 03:01:56,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1234588 to 371393. [2023-12-20 03:01:56,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 371393 states, 371392 states have (on average 1.414820459245218) internal successors, (525453), 371392 states have internal predecessors, (525453), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:01:58,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 371393 states to 371393 states and 525453 transitions. [2023-12-20 03:01:58,627 INFO L78 Accepts]: Start accepts. Automaton has 371393 states and 525453 transitions. Word has length 92 [2023-12-20 03:01:58,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:01:58,627 INFO L495 AbstractCegarLoop]: Abstraction has 371393 states and 525453 transitions. [2023-12-20 03:01:58,627 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 7.076923076923077) internal successors, (92), 12 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:01:58,628 INFO L276 IsEmpty]: Start isEmpty. Operand 371393 states and 525453 transitions. [2023-12-20 03:01:58,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2023-12-20 03:01:58,646 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:01:58,646 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 03:01:58,647 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2023-12-20 03:01:58,647 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 03:01:58,647 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:01:58,647 INFO L85 PathProgramCache]: Analyzing trace with hash -487805314, now seen corresponding path program 1 times [2023-12-20 03:01:58,647 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:01:58,647 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1753259790] [2023-12-20 03:01:58,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:01:58,648 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:01:58,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:01:59,793 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:01:59,793 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:01:59,794 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1753259790] [2023-12-20 03:01:59,794 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1753259790] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:01:59,794 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:01:59,794 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-12-20 03:01:59,794 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1391356001] [2023-12-20 03:01:59,794 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:01:59,795 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-12-20 03:01:59,795 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:01:59,795 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-12-20 03:01:59,796 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2023-12-20 03:01:59,796 INFO L87 Difference]: Start difference. First operand 371393 states and 525453 transitions. Second operand has 12 states, 12 states have (on average 7.666666666666667) internal successors, (92), 11 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:02:06,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:02:06,751 INFO L93 Difference]: Finished difference Result 1457017 states and 2058679 transitions. [2023-12-20 03:02:06,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-12-20 03:02:06,760 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 7.666666666666667) internal successors, (92), 11 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 92 [2023-12-20 03:02:06,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:02:10,049 INFO L225 Difference]: With dead ends: 1457017 [2023-12-20 03:02:10,049 INFO L226 Difference]: Without dead ends: 1302862 [2023-12-20 03:02:10,810 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=128, Invalid=378, Unknown=0, NotChecked=0, Total=506 [2023-12-20 03:02:10,810 INFO L413 NwaCegarLoop]: 629 mSDtfsCounter, 2194 mSDsluCounter, 4298 mSDsCounter, 0 mSdLazyCounter, 701 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2194 SdHoareTripleChecker+Valid, 4927 SdHoareTripleChecker+Invalid, 705 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 701 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-20 03:02:10,811 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2194 Valid, 4927 Invalid, 705 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 701 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-20 03:02:11,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1302862 states. [2023-12-20 03:02:22,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1302862 to 370946. [2023-12-20 03:02:22,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 370946 states, 370945 states have (on average 1.4150237905889014) internal successors, (524896), 370945 states have internal predecessors, (524896), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:02:24,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 370946 states to 370946 states and 524896 transitions. [2023-12-20 03:02:24,071 INFO L78 Accepts]: Start accepts. Automaton has 370946 states and 524896 transitions. Word has length 92 [2023-12-20 03:02:24,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:02:24,072 INFO L495 AbstractCegarLoop]: Abstraction has 370946 states and 524896 transitions. [2023-12-20 03:02:24,072 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 7.666666666666667) internal successors, (92), 11 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:02:24,072 INFO L276 IsEmpty]: Start isEmpty. Operand 370946 states and 524896 transitions. [2023-12-20 03:02:24,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2023-12-20 03:02:24,086 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:02:24,086 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 03:02:24,086 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2023-12-20 03:02:24,094 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 03:02:24,095 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:02:24,095 INFO L85 PathProgramCache]: Analyzing trace with hash 627980850, now seen corresponding path program 1 times [2023-12-20 03:02:24,095 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:02:24,096 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [356018260] [2023-12-20 03:02:24,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:02:24,096 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:02:24,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:02:24,170 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:02:24,171 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:02:24,171 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [356018260] [2023-12-20 03:02:24,171 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [356018260] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:02:24,171 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:02:24,171 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-20 03:02:24,171 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [347423212] [2023-12-20 03:02:24,171 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:02:24,171 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 03:02:24,171 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:02:24,172 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 03:02:24,172 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 03:02:24,172 INFO L87 Difference]: Start difference. First operand 370946 states and 524896 transitions. Second operand has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:02:27,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:02:27,946 INFO L93 Difference]: Finished difference Result 829233 states and 1173515 transitions. [2023-12-20 03:02:27,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 03:02:27,947 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 93 [2023-12-20 03:02:27,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:02:29,642 INFO L225 Difference]: With dead ends: 829233 [2023-12-20 03:02:29,643 INFO L226 Difference]: Without dead ends: 583182 [2023-12-20 03:02:30,493 INFO L412 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 [2023-12-20 03:02:30,516 INFO L413 NwaCegarLoop]: 279 mSDtfsCounter, 232 mSDsluCounter, 163 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 232 SdHoareTripleChecker+Valid, 442 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-20 03:02:30,517 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [232 Valid, 442 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-20 03:02:31,074 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 583182 states. [2023-12-20 03:02:37,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 583182 to 581488. [2023-12-20 03:02:38,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 581488 states, 581487 states have (on average 1.416379042007818) internal successors, (823606), 581487 states have internal predecessors, (823606), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:02:41,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 581488 states to 581488 states and 823606 transitions. [2023-12-20 03:02:41,517 INFO L78 Accepts]: Start accepts. Automaton has 581488 states and 823606 transitions. Word has length 93 [2023-12-20 03:02:41,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:02:41,517 INFO L495 AbstractCegarLoop]: Abstraction has 581488 states and 823606 transitions. [2023-12-20 03:02:41,517 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:02:41,517 INFO L276 IsEmpty]: Start isEmpty. Operand 581488 states and 823606 transitions. [2023-12-20 03:02:41,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2023-12-20 03:02:41,532 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:02:41,532 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 03:02:41,532 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2023-12-20 03:02:41,532 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 03:02:41,533 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:02:41,533 INFO L85 PathProgramCache]: Analyzing trace with hash 1038877360, now seen corresponding path program 1 times [2023-12-20 03:02:41,533 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:02:41,533 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [695662704] [2023-12-20 03:02:41,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:02:41,534 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:02:41,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:02:41,561 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:02:41,561 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:02:41,561 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [695662704] [2023-12-20 03:02:41,561 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [695662704] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:02:41,561 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:02:41,561 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-20 03:02:41,561 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1141474626] [2023-12-20 03:02:41,562 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:02:41,562 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 03:02:41,562 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:02:41,563 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 03:02:41,563 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 03:02:41,563 INFO L87 Difference]: Start difference. First operand 581488 states and 823606 transitions. Second operand has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:02:46,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:02:46,404 INFO L93 Difference]: Finished difference Result 1053495 states and 1488681 transitions. [2023-12-20 03:02:46,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 03:02:46,420 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 93 [2023-12-20 03:02:46,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:02:48,681 INFO L225 Difference]: With dead ends: 1053495 [2023-12-20 03:02:48,681 INFO L226 Difference]: Without dead ends: 782596 [2023-12-20 03:02:48,901 INFO L412 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 [2023-12-20 03:02:48,902 INFO L413 NwaCegarLoop]: 277 mSDtfsCounter, 232 mSDsluCounter, 173 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 232 SdHoareTripleChecker+Valid, 450 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 [2023-12-20 03:02:48,902 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [232 Valid, 450 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 03:02:49,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 782596 states. [2023-12-20 03:02:58,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 782596 to 781548. [2023-12-20 03:02:59,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 781548 states, 781547 states have (on average 1.4137831761877404) internal successors, (1104938), 781547 states have internal predecessors, (1104938), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:03:03,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 781548 states to 781548 states and 1104938 transitions. [2023-12-20 03:03:03,752 INFO L78 Accepts]: Start accepts. Automaton has 781548 states and 1104938 transitions. Word has length 93 [2023-12-20 03:03:03,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:03:03,753 INFO L495 AbstractCegarLoop]: Abstraction has 781548 states and 1104938 transitions. [2023-12-20 03:03:03,753 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:03:03,753 INFO L276 IsEmpty]: Start isEmpty. Operand 781548 states and 1104938 transitions. [2023-12-20 03:03:03,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2023-12-20 03:03:03,770 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:03:03,770 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 03:03:03,770 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2023-12-20 03:03:03,770 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 03:03:03,770 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:03:03,771 INFO L85 PathProgramCache]: Analyzing trace with hash -1870848776, now seen corresponding path program 1 times [2023-12-20 03:03:03,771 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:03:03,771 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1181886906] [2023-12-20 03:03:03,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:03:03,771 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:03:03,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:03:03,872 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:03:03,872 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:03:03,872 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1181886906] [2023-12-20 03:03:03,873 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1181886906] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:03:03,873 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:03:03,873 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-20 03:03:03,873 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [182482098] [2023-12-20 03:03:03,873 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:03:03,873 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 03:03:03,873 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:03:03,873 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 03:03:03,873 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 03:03:03,874 INFO L87 Difference]: Start difference. First operand 781548 states and 1104938 transitions. Second operand has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:03:09,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:03:09,008 INFO L93 Difference]: Finished difference Result 1032070 states and 1454664 transitions. [2023-12-20 03:03:09,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 03:03:09,009 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 95 [2023-12-20 03:03:09,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:03:11,724 INFO L225 Difference]: With dead ends: 1032070 [2023-12-20 03:03:11,724 INFO L226 Difference]: Without dead ends: 738610 [2023-12-20 03:03:12,032 INFO L412 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 [2023-12-20 03:03:12,033 INFO L413 NwaCegarLoop]: 439 mSDtfsCounter, 172 mSDsluCounter, 257 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 172 SdHoareTripleChecker+Valid, 696 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 [2023-12-20 03:03:12,033 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [172 Valid, 696 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 03:03:12,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 738610 states. [2023-12-20 03:03:21,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 738610 to 738608. [2023-12-20 03:03:22,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 738608 states, 738607 states have (on average 1.4043016110055822) internal successors, (1037227), 738607 states have internal predecessors, (1037227), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:03:25,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 738608 states to 738608 states and 1037227 transitions. [2023-12-20 03:03:25,246 INFO L78 Accepts]: Start accepts. Automaton has 738608 states and 1037227 transitions. Word has length 95 [2023-12-20 03:03:25,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:03:25,246 INFO L495 AbstractCegarLoop]: Abstraction has 738608 states and 1037227 transitions. [2023-12-20 03:03:25,246 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:03:25,246 INFO L276 IsEmpty]: Start isEmpty. Operand 738608 states and 1037227 transitions. [2023-12-20 03:03:25,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-12-20 03:03:25,268 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:03:25,268 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 03:03:25,268 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2023-12-20 03:03:25,268 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 03:03:25,269 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:03:25,269 INFO L85 PathProgramCache]: Analyzing trace with hash -544066226, now seen corresponding path program 1 times [2023-12-20 03:03:25,269 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:03:25,269 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1906447860] [2023-12-20 03:03:25,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:03:25,269 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:03:25,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:03:26,113 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:03:26,114 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:03:26,114 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1906447860] [2023-12-20 03:03:26,114 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1906447860] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:03:26,114 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:03:26,114 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2023-12-20 03:03:26,114 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1728096617] [2023-12-20 03:03:26,114 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:03:26,114 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-12-20 03:03:26,114 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:03:26,115 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-12-20 03:03:26,115 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2023-12-20 03:03:26,115 INFO L87 Difference]: Start difference. First operand 738608 states and 1037227 transitions. Second operand has 14 states, 14 states have (on average 6.857142857142857) internal successors, (96), 13 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:03:49,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:03:49,038 INFO L93 Difference]: Finished difference Result 4535027 states and 6313884 transitions. [2023-12-20 03:03:49,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2023-12-20 03:03:49,039 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 6.857142857142857) internal successors, (96), 13 states have internal predecessors, (96), 0 states have call successors, (0), 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 96 [2023-12-20 03:03:49,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:04:04,629 INFO L225 Difference]: With dead ends: 4535027 [2023-12-20 03:04:04,629 INFO L226 Difference]: Without dead ends: 4250877 [2023-12-20 03:04:07,051 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 913 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=687, Invalid=2505, Unknown=0, NotChecked=0, Total=3192 [2023-12-20 03:04:07,052 INFO L413 NwaCegarLoop]: 763 mSDtfsCounter, 5579 mSDsluCounter, 8805 mSDsCounter, 0 mSdLazyCounter, 1208 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5579 SdHoareTripleChecker+Valid, 9568 SdHoareTripleChecker+Invalid, 1234 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 1208 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-20 03:04:07,052 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5579 Valid, 9568 Invalid, 1234 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 1208 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-20 03:04:13,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4250877 states.