/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 false -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr-var-start-time.5.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-21 13:36:44,960 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-21 13:36:45,023 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-12-21 13:36:45,027 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-21 13:36:45,027 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-21 13:36:45,054 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-21 13:36:45,054 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-21 13:36:45,054 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-21 13:36:45,055 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-21 13:36:45,058 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-21 13:36:45,058 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-21 13:36:45,059 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-21 13:36:45,059 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-21 13:36:45,060 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-21 13:36:45,060 INFO L153 SettingsManager]: * Use SBE=true [2023-12-21 13:36:45,061 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-21 13:36:45,061 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-21 13:36:45,061 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-21 13:36:45,061 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-21 13:36:45,062 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-21 13:36:45,062 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-21 13:36:45,062 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-21 13:36:45,063 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-21 13:36:45,063 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-21 13:36:45,063 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-21 13:36:45,063 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-21 13:36:45,063 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-21 13:36:45,063 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-21 13:36:45,064 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-21 13:36:45,064 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-21 13:36:45,065 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-21 13:36:45,065 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-21 13:36:45,065 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-21 13:36:45,065 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-21 13:36:45,065 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-21 13:36:45,065 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-21 13:36:45,065 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-21 13:36:45,065 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-21 13:36:45,066 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-21 13:36:45,066 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-21 13:36:45,066 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-21 13:36:45,066 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-21 13:36:45,066 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-21 13:36:45,066 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> false [2023-12-21 13:36:45,254 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-21 13:36:45,275 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-21 13:36:45,277 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-21 13:36:45,277 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-21 13:36:45,278 INFO L274 PluginConnector]: CDTParser initialized [2023-12-21 13:36:45,278 INFO L431 ainManager$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.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c [2023-12-21 13:36:46,408 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-21 13:36:46,615 INFO L384 CDTParser]: Found 1 translation units. [2023-12-21 13:36:46,615 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr-var-start-time.5.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c [2023-12-21 13:36:46,625 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bb7836b07/421d0ab7963a42528ff12e6e79ef1c4a/FLAG48a699117 [2023-12-21 13:36:46,636 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bb7836b07/421d0ab7963a42528ff12e6e79ef1c4a [2023-12-21 13:36:46,638 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-21 13:36:46,639 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-21 13:36:46,640 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-21 13:36:46,640 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-21 13:36:46,643 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-21 13:36:46,644 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 01:36:46" (1/1) ... [2023-12-21 13:36:46,645 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3b55cd86 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:36:46, skipping insertion in model container [2023-12-21 13:36:46,645 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 01:36:46" (1/1) ... [2023-12-21 13:36:46,697 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-21 13:36:46,854 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.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c[8458,8471] [2023-12-21 13:36:46,895 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-21 13:36:46,906 INFO L202 MainTranslator]: Completed pre-run [2023-12-21 13:36:46,964 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.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c[8458,8471] [2023-12-21 13:36:46,995 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-21 13:36:47,016 INFO L206 MainTranslator]: Completed translation [2023-12-21 13:36:47,016 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:36:47 WrapperNode [2023-12-21 13:36:47,016 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-21 13:36:47,017 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-21 13:36:47,017 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-21 13:36:47,017 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-21 13:36:47,023 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:36:47" (1/1) ... [2023-12-21 13:36:47,033 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:36:47" (1/1) ... [2023-12-21 13:36:47,067 INFO L138 Inliner]: procedures = 25, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 854 [2023-12-21 13:36:47,068 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-21 13:36:47,068 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-21 13:36:47,069 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-21 13:36:47,069 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-21 13:36:47,077 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:36:47" (1/1) ... [2023-12-21 13:36:47,089 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:36:47" (1/1) ... [2023-12-21 13:36:47,103 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:36:47" (1/1) ... [2023-12-21 13:36:47,125 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]. [2023-12-21 13:36:47,126 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:36:47" (1/1) ... [2023-12-21 13:36:47,126 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:36:47" (1/1) ... [2023-12-21 13:36:47,134 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:36:47" (1/1) ... [2023-12-21 13:36:47,139 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:36:47" (1/1) ... [2023-12-21 13:36:47,142 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:36:47" (1/1) ... [2023-12-21 13:36:47,144 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:36:47" (1/1) ... [2023-12-21 13:36:47,151 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-21 13:36:47,152 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-21 13:36:47,152 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-21 13:36:47,152 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-21 13:36:47,152 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:36:47" (1/1) ... [2023-12-21 13:36:47,164 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-21 13:36:47,173 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 13:36:47,185 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) [2023-12-21 13:36:47,233 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 [2023-12-21 13:36:47,250 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-21 13:36:47,251 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-21 13:36:47,251 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-21 13:36:47,251 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-21 13:36:47,367 INFO L241 CfgBuilder]: Building ICFG [2023-12-21 13:36:47,369 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-21 13:36:47,953 INFO L282 CfgBuilder]: Performing block encoding [2023-12-21 13:36:47,981 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-21 13:36:47,981 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-12-21 13:36:47,981 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 01:36:47 BoogieIcfgContainer [2023-12-21 13:36:47,981 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-21 13:36:47,983 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-21 13:36:47,983 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-21 13:36:47,985 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-21 13:36:47,986 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.12 01:36:46" (1/3) ... [2023-12-21 13:36:47,986 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20fba7db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 01:36:47, skipping insertion in model container [2023-12-21 13:36:47,986 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:36:47" (2/3) ... [2023-12-21 13:36:47,987 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20fba7db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 01:36:47, skipping insertion in model container [2023-12-21 13:36:47,987 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 01:36:47" (3/3) ... [2023-12-21 13:36:47,988 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr-var-start-time.5.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c [2023-12-21 13:36:48,001 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-21 13:36:48,001 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-21 13:36:48,053 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-21 13:36:48,061 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;@35b46789, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-21 13:36:48,061 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-21 13:36:48,069 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) [2023-12-21 13:36:48,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2023-12-21 13:36:48,079 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:36:48,080 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] [2023-12-21 13:36:48,080 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 13:36:48,084 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:36:48,084 INFO L85 PathProgramCache]: Analyzing trace with hash 238097348, now seen corresponding path program 1 times [2023-12-21 13:36:48,091 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:36:48,091 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1979012172] [2023-12-21 13:36:48,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:36:48,092 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:36:48,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:36:48,624 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:36:48,625 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:36:48,625 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1979012172] [2023-12-21 13:36:48,625 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1979012172] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:36:48,625 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:36:48,625 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 13:36:48,628 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1504148284] [2023-12-21 13:36:48,628 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:36:48,633 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-21 13:36:48,633 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:36:48,662 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-21 13:36:48,663 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-21 13:36:48,667 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) [2023-12-21 13:36:48,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:36:48,907 INFO L93 Difference]: Finished difference Result 859 states and 1394 transitions. [2023-12-21 13:36:48,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-21 13:36:48,909 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 [2023-12-21 13:36:48,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:36:48,926 INFO L225 Difference]: With dead ends: 859 [2023-12-21 13:36:48,926 INFO L226 Difference]: Without dead ends: 746 [2023-12-21 13:36:48,929 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 [2023-12-21 13:36:48,932 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 [2023-12-21 13:36:48,933 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] [2023-12-21 13:36:48,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 746 states. [2023-12-21 13:36:48,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 746 to 327. [2023-12-21 13:36:48,976 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) [2023-12-21 13:36:48,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 327 states to 327 states and 492 transitions. [2023-12-21 13:36:48,978 INFO L78 Accepts]: Start accepts. Automaton has 327 states and 492 transitions. Word has length 79 [2023-12-21 13:36:48,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:36:48,979 INFO L495 AbstractCegarLoop]: Abstraction has 327 states and 492 transitions. [2023-12-21 13:36:48,979 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) [2023-12-21 13:36:48,979 INFO L276 IsEmpty]: Start isEmpty. Operand 327 states and 492 transitions. [2023-12-21 13:36:48,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2023-12-21 13:36:48,981 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:36:48,981 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] [2023-12-21 13:36:48,981 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-21 13:36:48,981 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 13:36:48,982 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:36:48,982 INFO L85 PathProgramCache]: Analyzing trace with hash -1488805870, now seen corresponding path program 1 times [2023-12-21 13:36:48,982 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:36:48,982 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [480828526] [2023-12-21 13:36:48,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:36:48,982 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:36:49,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:36:49,282 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:36:49,283 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:36:49,283 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [480828526] [2023-12-21 13:36:49,283 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [480828526] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:36:49,283 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:36:49,283 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 13:36:49,283 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [263002790] [2023-12-21 13:36:49,284 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:36:49,284 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-21 13:36:49,285 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:36:49,285 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-21 13:36:49,285 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-12-21 13:36:49,285 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) [2023-12-21 13:36:49,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:36:49,484 INFO L93 Difference]: Finished difference Result 1423 states and 2209 transitions. [2023-12-21 13:36:49,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-21 13:36:49,485 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 [2023-12-21 13:36:49,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:36:49,489 INFO L225 Difference]: With dead ends: 1423 [2023-12-21 13:36:49,489 INFO L226 Difference]: Without dead ends: 1175 [2023-12-21 13:36:49,493 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-12-21 13:36:49,494 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, 0.2s IncrementalHoareTripleChecker+Time [2023-12-21 13:36:49,494 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1499 Valid, 1399 Invalid, 179 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [70 Valid, 109 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-21 13:36:49,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1175 states. [2023-12-21 13:36:49,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1175 to 1167. [2023-12-21 13:36:49,533 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) [2023-12-21 13:36:49,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1167 states to 1167 states and 1805 transitions. [2023-12-21 13:36:49,535 INFO L78 Accepts]: Start accepts. Automaton has 1167 states and 1805 transitions. Word has length 80 [2023-12-21 13:36:49,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:36:49,537 INFO L495 AbstractCegarLoop]: Abstraction has 1167 states and 1805 transitions. [2023-12-21 13:36:49,537 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) [2023-12-21 13:36:49,538 INFO L276 IsEmpty]: Start isEmpty. Operand 1167 states and 1805 transitions. [2023-12-21 13:36:49,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2023-12-21 13:36:49,544 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:36:49,545 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] [2023-12-21 13:36:49,545 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-21 13:36:49,545 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 13:36:49,548 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:36:49,548 INFO L85 PathProgramCache]: Analyzing trace with hash -1568346073, now seen corresponding path program 1 times [2023-12-21 13:36:49,548 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:36:49,548 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [961933639] [2023-12-21 13:36:49,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:36:49,549 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:36:49,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:36:49,658 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:36:49,658 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:36:49,659 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [961933639] [2023-12-21 13:36:49,659 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [961933639] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:36:49,659 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:36:49,660 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-21 13:36:49,660 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [11426845] [2023-12-21 13:36:49,660 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:36:49,661 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 13:36:49,661 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:36:49,661 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 13:36:49,664 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-21 13:36:49,664 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) [2023-12-21 13:36:49,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:36:49,871 INFO L93 Difference]: Finished difference Result 3104 states and 4858 transitions. [2023-12-21 13:36:49,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-21 13:36:49,871 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 [2023-12-21 13:36:49,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:36:49,877 INFO L225 Difference]: With dead ends: 3104 [2023-12-21 13:36:49,877 INFO L226 Difference]: Without dead ends: 2017 [2023-12-21 13:36:49,880 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 [2023-12-21 13:36:49,882 INFO L413 NwaCegarLoop]: 177 mSDtfsCounter, 1168 mSDsluCounter, 119 mSDsCounter, 0 mSdLazyCounter, 202 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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 [2023-12-21 13:36:49,883 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] [2023-12-21 13:36:49,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2017 states. [2023-12-21 13:36:49,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2017 to 2015. [2023-12-21 13:36:49,909 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) [2023-12-21 13:36:49,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2015 states to 2015 states and 3135 transitions. [2023-12-21 13:36:49,914 INFO L78 Accepts]: Start accepts. Automaton has 2015 states and 3135 transitions. Word has length 81 [2023-12-21 13:36:49,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:36:49,918 INFO L495 AbstractCegarLoop]: Abstraction has 2015 states and 3135 transitions. [2023-12-21 13:36:49,918 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) [2023-12-21 13:36:49,921 INFO L276 IsEmpty]: Start isEmpty. Operand 2015 states and 3135 transitions. [2023-12-21 13:36:49,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2023-12-21 13:36:49,923 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:36:49,923 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] [2023-12-21 13:36:49,924 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-21 13:36:49,924 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 13:36:49,924 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:36:49,925 INFO L85 PathProgramCache]: Analyzing trace with hash 945560248, now seen corresponding path program 1 times [2023-12-21 13:36:49,925 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:36:49,925 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [765816723] [2023-12-21 13:36:49,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:36:49,925 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:36:49,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:36:50,039 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:36:50,039 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:36:50,040 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [765816723] [2023-12-21 13:36:50,040 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [765816723] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:36:50,040 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:36:50,040 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-21 13:36:50,040 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1257564458] [2023-12-21 13:36:50,040 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:36:50,041 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 13:36:50,041 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:36:50,042 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 13:36:50,042 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-21 13:36:50,042 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) [2023-12-21 13:36:50,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:36:50,237 INFO L93 Difference]: Finished difference Result 5536 states and 8683 transitions. [2023-12-21 13:36:50,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-21 13:36:50,237 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 [2023-12-21 13:36:50,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:36:50,247 INFO L225 Difference]: With dead ends: 5536 [2023-12-21 13:36:50,247 INFO L226 Difference]: Without dead ends: 3631 [2023-12-21 13:36:50,249 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 [2023-12-21 13:36:50,250 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 [2023-12-21 13:36:50,250 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] [2023-12-21 13:36:50,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3631 states. [2023-12-21 13:36:50,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3631 to 3629. [2023-12-21 13:36:50,332 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) [2023-12-21 13:36:50,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3629 states to 3629 states and 5658 transitions. [2023-12-21 13:36:50,343 INFO L78 Accepts]: Start accepts. Automaton has 3629 states and 5658 transitions. Word has length 81 [2023-12-21 13:36:50,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:36:50,343 INFO L495 AbstractCegarLoop]: Abstraction has 3629 states and 5658 transitions. [2023-12-21 13:36:50,344 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) [2023-12-21 13:36:50,344 INFO L276 IsEmpty]: Start isEmpty. Operand 3629 states and 5658 transitions. [2023-12-21 13:36:50,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2023-12-21 13:36:50,345 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:36:50,346 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] [2023-12-21 13:36:50,346 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-21 13:36:50,346 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 13:36:50,346 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:36:50,346 INFO L85 PathProgramCache]: Analyzing trace with hash 1454177033, now seen corresponding path program 1 times [2023-12-21 13:36:50,346 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:36:50,347 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1727899746] [2023-12-21 13:36:50,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:36:50,347 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:36:50,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:36:50,423 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:36:50,423 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:36:50,423 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1727899746] [2023-12-21 13:36:50,424 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1727899746] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:36:50,424 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:36:50,425 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-21 13:36:50,425 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [156860549] [2023-12-21 13:36:50,425 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:36:50,425 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 13:36:50,426 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:36:50,426 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 13:36:50,426 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-21 13:36:50,426 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) [2023-12-21 13:36:50,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:36:50,621 INFO L93 Difference]: Finished difference Result 10316 states and 16187 transitions. [2023-12-21 13:36:50,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-21 13:36:50,622 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 [2023-12-21 13:36:50,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:36:50,641 INFO L225 Difference]: With dead ends: 10316 [2023-12-21 13:36:50,641 INFO L226 Difference]: Without dead ends: 6831 [2023-12-21 13:36:50,649 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 [2023-12-21 13:36:50,650 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 [2023-12-21 13:36:50,650 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] [2023-12-21 13:36:50,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6831 states. [2023-12-21 13:36:50,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6831 to 6829. [2023-12-21 13:36:50,760 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) [2023-12-21 13:36:50,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6829 states to 6829 states and 10665 transitions. [2023-12-21 13:36:50,783 INFO L78 Accepts]: Start accepts. Automaton has 6829 states and 10665 transitions. Word has length 81 [2023-12-21 13:36:50,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:36:50,784 INFO L495 AbstractCegarLoop]: Abstraction has 6829 states and 10665 transitions. [2023-12-21 13:36:50,784 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) [2023-12-21 13:36:50,784 INFO L276 IsEmpty]: Start isEmpty. Operand 6829 states and 10665 transitions. [2023-12-21 13:36:50,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2023-12-21 13:36:50,786 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:36:50,786 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] [2023-12-21 13:36:50,786 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-21 13:36:50,786 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 13:36:50,786 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:36:50,787 INFO L85 PathProgramCache]: Analyzing trace with hash -415106218, now seen corresponding path program 1 times [2023-12-21 13:36:50,787 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:36:50,787 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [837623070] [2023-12-21 13:36:50,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:36:50,787 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:36:50,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:36:50,913 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:36:50,913 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:36:50,913 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [837623070] [2023-12-21 13:36:50,913 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [837623070] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:36:50,913 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:36:50,913 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-21 13:36:50,913 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2074596188] [2023-12-21 13:36:50,914 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:36:50,914 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 13:36:50,914 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:36:50,914 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 13:36:50,914 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-21 13:36:50,915 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) [2023-12-21 13:36:51,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:36:51,159 INFO L93 Difference]: Finished difference Result 20143 states and 31539 transitions. [2023-12-21 13:36:51,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-21 13:36:51,159 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 [2023-12-21 13:36:51,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:36:51,205 INFO L225 Difference]: With dead ends: 20143 [2023-12-21 13:36:51,205 INFO L226 Difference]: Without dead ends: 13371 [2023-12-21 13:36:51,218 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 [2023-12-21 13:36:51,218 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, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 13:36:51,219 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1182 Valid, 294 Invalid, 207 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 200 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 13:36:51,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13371 states. [2023-12-21 13:36:51,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13371 to 13369. [2023-12-21 13:36:51,440 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) [2023-12-21 13:36:51,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13369 states to 13369 states and 20810 transitions. [2023-12-21 13:36:51,480 INFO L78 Accepts]: Start accepts. Automaton has 13369 states and 20810 transitions. Word has length 81 [2023-12-21 13:36:51,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:36:51,480 INFO L495 AbstractCegarLoop]: Abstraction has 13369 states and 20810 transitions. [2023-12-21 13:36:51,481 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) [2023-12-21 13:36:51,481 INFO L276 IsEmpty]: Start isEmpty. Operand 13369 states and 20810 transitions. [2023-12-21 13:36:51,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2023-12-21 13:36:51,483 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:36:51,484 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] [2023-12-21 13:36:51,484 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-12-21 13:36:51,484 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 13:36:51,484 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:36:51,484 INFO L85 PathProgramCache]: Analyzing trace with hash 1656601669, now seen corresponding path program 1 times [2023-12-21 13:36:51,484 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:36:51,484 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2086864264] [2023-12-21 13:36:51,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:36:51,485 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:36:51,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:36:51,619 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:36:51,620 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:36:51,620 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2086864264] [2023-12-21 13:36:51,620 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2086864264] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:36:51,620 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:36:51,620 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-21 13:36:51,620 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1618945348] [2023-12-21 13:36:51,620 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:36:51,620 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 13:36:51,621 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:36:51,621 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 13:36:51,621 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-21 13:36:51,621 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) [2023-12-21 13:36:51,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:36:51,910 INFO L93 Difference]: Finished difference Result 37564 states and 58553 transitions. [2023-12-21 13:36:51,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-21 13:36:51,910 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 [2023-12-21 13:36:51,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:36:51,965 INFO L225 Difference]: With dead ends: 37564 [2023-12-21 13:36:51,966 INFO L226 Difference]: Without dead ends: 24236 [2023-12-21 13:36:51,987 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 [2023-12-21 13:36:51,990 INFO L413 NwaCegarLoop]: 175 mSDtfsCounter, 1212 mSDsluCounter, 115 mSDsCounter, 0 mSdLazyCounter, 202 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1212 SdHoareTripleChecker+Valid, 290 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 [2023-12-21 13:36:51,990 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1212 Valid, 290 Invalid, 209 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 202 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-21 13:36:52,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24236 states. [2023-12-21 13:36:52,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24236 to 24234. [2023-12-21 13:36:52,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24234 states, 24233 states have (on average 1.5473527833945446) internal successors, (37497), 24233 states have internal predecessors, (37497), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:36:52,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24234 states to 24234 states and 37497 transitions. [2023-12-21 13:36:52,450 INFO L78 Accepts]: Start accepts. Automaton has 24234 states and 37497 transitions. Word has length 81 [2023-12-21 13:36:52,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:36:52,450 INFO L495 AbstractCegarLoop]: Abstraction has 24234 states and 37497 transitions. [2023-12-21 13:36:52,450 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) [2023-12-21 13:36:52,450 INFO L276 IsEmpty]: Start isEmpty. Operand 24234 states and 37497 transitions. [2023-12-21 13:36:52,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2023-12-21 13:36:52,558 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:36:52,558 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] [2023-12-21 13:36:52,558 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-12-21 13:36:52,559 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 13:36:52,559 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:36:52,559 INFO L85 PathProgramCache]: Analyzing trace with hash 1146010974, now seen corresponding path program 1 times [2023-12-21 13:36:52,559 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:36:52,559 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [851792957] [2023-12-21 13:36:52,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:36:52,559 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:36:52,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:36:52,737 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:36:52,737 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:36:52,737 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [851792957] [2023-12-21 13:36:52,737 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [851792957] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:36:52,737 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:36:52,737 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-21 13:36:52,738 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [832757178] [2023-12-21 13:36:52,738 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:36:52,738 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 13:36:52,738 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:36:52,738 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 13:36:52,738 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-21 13:36:52,738 INFO L87 Difference]: Start difference. First operand 24234 states and 37497 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) [2023-12-21 13:36:52,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:36:52,885 INFO L93 Difference]: Finished difference Result 48236 states and 74394 transitions. [2023-12-21 13:36:52,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-21 13:36:52,886 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 [2023-12-21 13:36:52,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:36:52,951 INFO L225 Difference]: With dead ends: 48236 [2023-12-21 13:36:52,952 INFO L226 Difference]: Without dead ends: 48234 [2023-12-21 13:36:52,969 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 [2023-12-21 13:36:52,971 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 [2023-12-21 13:36:52,973 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] [2023-12-21 13:36:53,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48234 states. [2023-12-21 13:36:53,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48234 to 24810. [2023-12-21 13:36:53,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24810 states, 24809 states have (on average 1.5346446853964286) internal successors, (38073), 24809 states have internal predecessors, (38073), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:36:53,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24810 states to 24810 states and 38073 transitions. [2023-12-21 13:36:53,521 INFO L78 Accepts]: Start accepts. Automaton has 24810 states and 38073 transitions. Word has length 82 [2023-12-21 13:36:53,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:36:53,522 INFO L495 AbstractCegarLoop]: Abstraction has 24810 states and 38073 transitions. [2023-12-21 13:36:53,522 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) [2023-12-21 13:36:53,522 INFO L276 IsEmpty]: Start isEmpty. Operand 24810 states and 38073 transitions. [2023-12-21 13:36:53,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2023-12-21 13:36:53,527 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:36:53,527 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] [2023-12-21 13:36:53,527 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-12-21 13:36:53,527 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 13:36:53,527 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:36:53,527 INFO L85 PathProgramCache]: Analyzing trace with hash 1446008994, now seen corresponding path program 1 times [2023-12-21 13:36:53,527 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:36:53,527 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1202914012] [2023-12-21 13:36:53,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:36:53,528 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:36:53,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:36:53,941 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:36:53,941 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:36:53,941 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1202914012] [2023-12-21 13:36:53,941 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1202914012] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:36:53,941 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:36:53,941 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-21 13:36:53,942 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [471794695] [2023-12-21 13:36:53,942 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:36:53,942 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-21 13:36:53,942 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:36:53,943 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-21 13:36:53,943 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-12-21 13:36:53,943 INFO L87 Difference]: Start difference. First operand 24810 states and 38073 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) [2023-12-21 13:36:55,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:36:55,276 INFO L93 Difference]: Finished difference Result 112873 states and 171860 transitions. [2023-12-21 13:36:55,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-12-21 13:36:55,276 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 [2023-12-21 13:36:55,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:36:55,461 INFO L225 Difference]: With dead ends: 112873 [2023-12-21 13:36:55,461 INFO L226 Difference]: Without dead ends: 98561 [2023-12-21 13:36:55,500 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 [2023-12-21 13:36:55,502 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 [2023-12-21 13:36:55,502 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] [2023-12-21 13:36:55,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98561 states. [2023-12-21 13:36:56,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98561 to 25103. [2023-12-21 13:36:56,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25103 states, 25102 states have (on average 1.5327862321727352) internal successors, (38476), 25102 states have internal predecessors, (38476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:36:56,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25103 states to 25103 states and 38476 transitions. [2023-12-21 13:36:56,558 INFO L78 Accepts]: Start accepts. Automaton has 25103 states and 38476 transitions. Word has length 83 [2023-12-21 13:36:56,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:36:56,558 INFO L495 AbstractCegarLoop]: Abstraction has 25103 states and 38476 transitions. [2023-12-21 13:36:56,558 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) [2023-12-21 13:36:56,559 INFO L276 IsEmpty]: Start isEmpty. Operand 25103 states and 38476 transitions. [2023-12-21 13:36:56,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2023-12-21 13:36:56,580 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:36:56,580 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] [2023-12-21 13:36:56,580 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-12-21 13:36:56,580 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 13:36:56,581 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:36:56,581 INFO L85 PathProgramCache]: Analyzing trace with hash -1513368446, now seen corresponding path program 1 times [2023-12-21 13:36:56,581 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:36:56,581 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [541223808] [2023-12-21 13:36:56,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:36:56,581 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:36:56,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:36:56,960 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:36:56,960 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:36:56,961 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [541223808] [2023-12-21 13:36:56,961 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [541223808] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:36:56,961 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:36:56,961 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-21 13:36:56,961 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [840124489] [2023-12-21 13:36:56,961 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:36:56,961 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-21 13:36:56,961 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:36:56,961 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-21 13:36:56,962 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-12-21 13:36:56,962 INFO L87 Difference]: Start difference. First operand 25103 states and 38476 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) [2023-12-21 13:36:58,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:36:58,492 INFO L93 Difference]: Finished difference Result 93895 states and 142421 transitions. [2023-12-21 13:36:58,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-12-21 13:36:58,493 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 [2023-12-21 13:36:58,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:36:58,603 INFO L225 Difference]: With dead ends: 93895 [2023-12-21 13:36:58,604 INFO L226 Difference]: Without dead ends: 85061 [2023-12-21 13:36:58,636 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 115 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=150, Invalid=500, Unknown=0, NotChecked=0, Total=650 [2023-12-21 13:36:58,637 INFO L413 NwaCegarLoop]: 351 mSDtfsCounter, 1842 mSDsluCounter, 2133 mSDsCounter, 0 mSdLazyCounter, 1976 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1842 SdHoareTripleChecker+Valid, 2484 SdHoareTripleChecker+Invalid, 1984 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 1976 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-12-21 13:36:58,637 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1842 Valid, 2484 Invalid, 1984 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 1976 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-12-21 13:36:58,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85061 states. [2023-12-21 13:36:59,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85061 to 25639. [2023-12-21 13:36:59,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25639 states, 25638 states have (on average 1.530813636009049) internal successors, (39247), 25638 states have internal predecessors, (39247), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:36:59,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25639 states to 25639 states and 39247 transitions. [2023-12-21 13:36:59,453 INFO L78 Accepts]: Start accepts. Automaton has 25639 states and 39247 transitions. Word has length 83 [2023-12-21 13:36:59,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:36:59,453 INFO L495 AbstractCegarLoop]: Abstraction has 25639 states and 39247 transitions. [2023-12-21 13:36:59,453 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) [2023-12-21 13:36:59,453 INFO L276 IsEmpty]: Start isEmpty. Operand 25639 states and 39247 transitions. [2023-12-21 13:36:59,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2023-12-21 13:36:59,459 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:36:59,459 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] [2023-12-21 13:36:59,460 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-12-21 13:36:59,460 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 13:36:59,460 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:36:59,460 INFO L85 PathProgramCache]: Analyzing trace with hash -2116249502, now seen corresponding path program 1 times [2023-12-21 13:36:59,460 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:36:59,460 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1873355250] [2023-12-21 13:36:59,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:36:59,460 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:36:59,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:36:59,667 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:36:59,668 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:36:59,668 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1873355250] [2023-12-21 13:36:59,668 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1873355250] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:36:59,668 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:36:59,668 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-21 13:36:59,668 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1477539495] [2023-12-21 13:36:59,668 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:36:59,668 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-21 13:36:59,668 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:36:59,669 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-21 13:36:59,669 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2023-12-21 13:36:59,669 INFO L87 Difference]: Start difference. First operand 25639 states and 39247 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) [2023-12-21 13:37:00,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:37:00,732 INFO L93 Difference]: Finished difference Result 66402 states and 101045 transitions. [2023-12-21 13:37:00,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-12-21 13:37:00,732 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 [2023-12-21 13:37:00,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:37:00,811 INFO L225 Difference]: With dead ends: 66402 [2023-12-21 13:37:00,811 INFO L226 Difference]: Without dead ends: 63095 [2023-12-21 13:37:00,835 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 [2023-12-21 13:37:00,835 INFO L413 NwaCegarLoop]: 311 mSDtfsCounter, 1569 mSDsluCounter, 1319 mSDsCounter, 0 mSdLazyCounter, 1231 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1569 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, 0.7s IncrementalHoareTripleChecker+Time [2023-12-21 13:37:00,836 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1569 Valid, 1630 Invalid, 1239 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 1231 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-21 13:37:00,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63095 states. [2023-12-21 13:37:01,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63095 to 25639. [2023-12-21 13:37:01,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25639 states, 25638 states have (on average 1.5306576175988766) internal successors, (39243), 25638 states have internal predecessors, (39243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:37:01,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25639 states to 25639 states and 39243 transitions. [2023-12-21 13:37:01,455 INFO L78 Accepts]: Start accepts. Automaton has 25639 states and 39243 transitions. Word has length 83 [2023-12-21 13:37:01,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:37:01,455 INFO L495 AbstractCegarLoop]: Abstraction has 25639 states and 39243 transitions. [2023-12-21 13:37:01,456 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) [2023-12-21 13:37:01,456 INFO L276 IsEmpty]: Start isEmpty. Operand 25639 states and 39243 transitions. [2023-12-21 13:37:01,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2023-12-21 13:37:01,463 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:37:01,463 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] [2023-12-21 13:37:01,463 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-12-21 13:37:01,463 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 13:37:01,463 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:37:01,463 INFO L85 PathProgramCache]: Analyzing trace with hash 1194992834, now seen corresponding path program 1 times [2023-12-21 13:37:01,463 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:37:01,464 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [439676112] [2023-12-21 13:37:01,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:37:01,464 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:37:01,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:37:01,844 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:37:01,845 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:37:01,845 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [439676112] [2023-12-21 13:37:01,845 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [439676112] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:37:01,845 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:37:01,845 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-21 13:37:01,845 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [680421594] [2023-12-21 13:37:01,845 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:37:01,845 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-21 13:37:01,845 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:37:01,846 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-21 13:37:01,846 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-12-21 13:37:01,846 INFO L87 Difference]: Start difference. First operand 25639 states and 39243 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) [2023-12-21 13:37:03,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:37:03,284 INFO L93 Difference]: Finished difference Result 129296 states and 196389 transitions. [2023-12-21 13:37:03,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-12-21 13:37:03,285 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 [2023-12-21 13:37:03,285 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:37:03,432 INFO L225 Difference]: With dead ends: 129296 [2023-12-21 13:37:03,433 INFO L226 Difference]: Without dead ends: 109577 [2023-12-21 13:37:03,465 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 [2023-12-21 13:37:03,465 INFO L413 NwaCegarLoop]: 330 mSDtfsCounter, 1944 mSDsluCounter, 1721 mSDsCounter, 0 mSdLazyCounter, 1635 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s 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, 0.8s IncrementalHoareTripleChecker+Time [2023-12-21 13:37:03,465 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1944 Valid, 2051 Invalid, 1643 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 1635 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-21 13:37:03,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109577 states. [2023-12-21 13:37:04,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109577 to 26056. [2023-12-21 13:37:04,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26056 states, 26055 states have (on average 1.5268470543081942) internal successors, (39782), 26055 states have internal predecessors, (39782), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:37:04,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26056 states to 26056 states and 39782 transitions. [2023-12-21 13:37:04,462 INFO L78 Accepts]: Start accepts. Automaton has 26056 states and 39782 transitions. Word has length 83 [2023-12-21 13:37:04,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:37:04,462 INFO L495 AbstractCegarLoop]: Abstraction has 26056 states and 39782 transitions. [2023-12-21 13:37:04,463 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) [2023-12-21 13:37:04,463 INFO L276 IsEmpty]: Start isEmpty. Operand 26056 states and 39782 transitions. [2023-12-21 13:37:04,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2023-12-21 13:37:04,469 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:37:04,469 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] [2023-12-21 13:37:04,469 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-12-21 13:37:04,469 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 13:37:04,469 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:37:04,469 INFO L85 PathProgramCache]: Analyzing trace with hash 1796815074, now seen corresponding path program 1 times [2023-12-21 13:37:04,470 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:37:04,470 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1560863890] [2023-12-21 13:37:04,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:37:04,470 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:37:04,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:37:04,665 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:37:04,665 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:37:04,666 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1560863890] [2023-12-21 13:37:04,666 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1560863890] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:37:04,666 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:37:04,666 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-21 13:37:04,666 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1368959047] [2023-12-21 13:37:04,666 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:37:04,666 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-21 13:37:04,666 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:37:04,667 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-21 13:37:04,667 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-12-21 13:37:04,667 INFO L87 Difference]: Start difference. First operand 26056 states and 39782 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) [2023-12-21 13:37:06,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:37:06,334 INFO L93 Difference]: Finished difference Result 128706 states and 195076 transitions. [2023-12-21 13:37:06,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-12-21 13:37:06,334 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 [2023-12-21 13:37:06,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:37:06,500 INFO L225 Difference]: With dead ends: 128706 [2023-12-21 13:37:06,501 INFO L226 Difference]: Without dead ends: 104072 [2023-12-21 13:37:06,553 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 99 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=143, Invalid=457, Unknown=0, NotChecked=0, Total=600 [2023-12-21 13:37:06,554 INFO L413 NwaCegarLoop]: 343 mSDtfsCounter, 1878 mSDsluCounter, 2018 mSDsCounter, 0 mSdLazyCounter, 1866 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1878 SdHoareTripleChecker+Valid, 2361 SdHoareTripleChecker+Invalid, 1874 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 1866 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-12-21 13:37:06,554 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1878 Valid, 2361 Invalid, 1874 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 1866 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-12-21 13:37:06,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104072 states. [2023-12-21 13:37:07,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104072 to 26431. [2023-12-21 13:37:07,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26431 states, 26430 states have (on average 1.521604237608778) internal successors, (40216), 26430 states have internal predecessors, (40216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:37:07,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26431 states to 26431 states and 40216 transitions. [2023-12-21 13:37:07,632 INFO L78 Accepts]: Start accepts. Automaton has 26431 states and 40216 transitions. Word has length 83 [2023-12-21 13:37:07,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:37:07,632 INFO L495 AbstractCegarLoop]: Abstraction has 26431 states and 40216 transitions. [2023-12-21 13:37:07,632 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) [2023-12-21 13:37:07,633 INFO L276 IsEmpty]: Start isEmpty. Operand 26431 states and 40216 transitions. [2023-12-21 13:37:07,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2023-12-21 13:37:07,655 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:37:07,655 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] [2023-12-21 13:37:07,655 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-12-21 13:37:07,655 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 13:37:07,656 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:37:07,656 INFO L85 PathProgramCache]: Analyzing trace with hash -1075536573, now seen corresponding path program 1 times [2023-12-21 13:37:07,656 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:37:07,656 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1853075436] [2023-12-21 13:37:07,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:37:07,656 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:37:07,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:37:07,729 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:37:07,729 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:37:07,729 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1853075436] [2023-12-21 13:37:07,729 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1853075436] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:37:07,729 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:37:07,729 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 13:37:07,730 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [127999858] [2023-12-21 13:37:07,730 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:37:07,730 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 13:37:07,730 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:37:07,807 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 13:37:07,807 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 13:37:07,807 INFO L87 Difference]: Start difference. First operand 26431 states and 40216 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) [2023-12-21 13:37:07,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:37:07,941 INFO L93 Difference]: Finished difference Result 42933 states and 65516 transitions. [2023-12-21 13:37:07,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 13:37:07,942 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 [2023-12-21 13:37:07,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:37:07,980 INFO L225 Difference]: With dead ends: 42933 [2023-12-21 13:37:07,980 INFO L226 Difference]: Without dead ends: 31191 [2023-12-21 13:37:08,016 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 [2023-12-21 13:37:08,024 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 [2023-12-21 13:37:08,024 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] [2023-12-21 13:37:08,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31191 states. [2023-12-21 13:37:08,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31191 to 30921. [2023-12-21 13:37:08,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30921 states, 30920 states have (on average 1.5067270375161708) internal successors, (46588), 30920 states have internal predecessors, (46588), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:37:08,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30921 states to 30921 states and 46588 transitions. [2023-12-21 13:37:08,566 INFO L78 Accepts]: Start accepts. Automaton has 30921 states and 46588 transitions. Word has length 84 [2023-12-21 13:37:08,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:37:08,566 INFO L495 AbstractCegarLoop]: Abstraction has 30921 states and 46588 transitions. [2023-12-21 13:37:08,566 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) [2023-12-21 13:37:08,567 INFO L276 IsEmpty]: Start isEmpty. Operand 30921 states and 46588 transitions. [2023-12-21 13:37:08,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2023-12-21 13:37:08,588 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:37:08,588 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] [2023-12-21 13:37:08,588 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-12-21 13:37:08,588 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 13:37:08,588 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:37:08,588 INFO L85 PathProgramCache]: Analyzing trace with hash 1401966641, now seen corresponding path program 1 times [2023-12-21 13:37:08,588 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:37:08,589 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [748169104] [2023-12-21 13:37:08,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:37:08,589 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:37:08,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:37:08,694 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:37:08,694 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:37:08,694 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [748169104] [2023-12-21 13:37:08,694 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [748169104] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:37:08,694 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:37:08,694 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-21 13:37:08,694 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [883968855] [2023-12-21 13:37:08,694 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:37:08,695 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-21 13:37:08,695 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:37:08,695 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-21 13:37:08,695 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-21 13:37:08,695 INFO L87 Difference]: Start difference. First operand 30921 states and 46588 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) [2023-12-21 13:37:08,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:37:08,891 INFO L93 Difference]: Finished difference Result 84549 states and 127646 transitions. [2023-12-21 13:37:08,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-21 13:37:08,892 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 [2023-12-21 13:37:08,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:37:08,984 INFO L225 Difference]: With dead ends: 84549 [2023-12-21 13:37:08,984 INFO L226 Difference]: Without dead ends: 55955 [2023-12-21 13:37:09,019 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 [2023-12-21 13:37:09,020 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 [2023-12-21 13:37:09,020 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] [2023-12-21 13:37:09,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55955 states. [2023-12-21 13:37:09,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55955 to 55617. [2023-12-21 13:37:09,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55617 states, 55616 states have (on average 1.495325086306099) internal successors, (83164), 55616 states have internal predecessors, (83164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:37:09,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55617 states to 55617 states and 83164 transitions. [2023-12-21 13:37:09,869 INFO L78 Accepts]: Start accepts. Automaton has 55617 states and 83164 transitions. Word has length 84 [2023-12-21 13:37:09,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:37:09,870 INFO L495 AbstractCegarLoop]: Abstraction has 55617 states and 83164 transitions. [2023-12-21 13:37:09,870 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) [2023-12-21 13:37:09,870 INFO L276 IsEmpty]: Start isEmpty. Operand 55617 states and 83164 transitions. [2023-12-21 13:37:09,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2023-12-21 13:37:09,876 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:37:09,876 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] [2023-12-21 13:37:09,876 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-12-21 13:37:09,876 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 13:37:09,876 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:37:09,876 INFO L85 PathProgramCache]: Analyzing trace with hash -1298454314, now seen corresponding path program 1 times [2023-12-21 13:37:09,877 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:37:09,877 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1618785133] [2023-12-21 13:37:09,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:37:09,877 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:37:09,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:37:09,907 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:37:09,907 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:37:09,907 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1618785133] [2023-12-21 13:37:09,907 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1618785133] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:37:09,907 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:37:09,907 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 13:37:09,908 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1722120376] [2023-12-21 13:37:09,908 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:37:09,908 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 13:37:09,908 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:37:09,908 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 13:37:09,908 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 13:37:09,908 INFO L87 Difference]: Start difference. First operand 55617 states and 83164 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) [2023-12-21 13:37:10,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:37:10,086 INFO L93 Difference]: Finished difference Result 73572 states and 109788 transitions. [2023-12-21 13:37:10,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 13:37:10,086 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 [2023-12-21 13:37:10,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:37:10,164 INFO L225 Difference]: With dead ends: 73572 [2023-12-21 13:37:10,164 INFO L226 Difference]: Without dead ends: 57126 [2023-12-21 13:37:10,193 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 [2023-12-21 13:37:10,194 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 [2023-12-21 13:37:10,194 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] [2023-12-21 13:37:10,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57126 states. [2023-12-21 13:37:11,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57126 to 52108. [2023-12-21 13:37:11,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52108 states, 52107 states have (on average 1.4752720363866658) internal successors, (76872), 52107 states have internal predecessors, (76872), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:37:11,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52108 states to 52108 states and 76872 transitions. [2023-12-21 13:37:11,180 INFO L78 Accepts]: Start accepts. Automaton has 52108 states and 76872 transitions. Word has length 84 [2023-12-21 13:37:11,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:37:11,181 INFO L495 AbstractCegarLoop]: Abstraction has 52108 states and 76872 transitions. [2023-12-21 13:37:11,181 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) [2023-12-21 13:37:11,181 INFO L276 IsEmpty]: Start isEmpty. Operand 52108 states and 76872 transitions. [2023-12-21 13:37:11,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2023-12-21 13:37:11,187 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:37:11,187 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] [2023-12-21 13:37:11,187 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-12-21 13:37:11,187 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 13:37:11,187 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:37:11,187 INFO L85 PathProgramCache]: Analyzing trace with hash 335873668, now seen corresponding path program 1 times [2023-12-21 13:37:11,187 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:37:11,188 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1957187293] [2023-12-21 13:37:11,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:37:11,188 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:37:11,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:37:11,220 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:37:11,221 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:37:11,221 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1957187293] [2023-12-21 13:37:11,221 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1957187293] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:37:11,221 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:37:11,221 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 13:37:11,221 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1407995528] [2023-12-21 13:37:11,221 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:37:11,221 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 13:37:11,221 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:37:11,222 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 13:37:11,222 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 13:37:11,222 INFO L87 Difference]: Start difference. First operand 52108 states and 76872 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) [2023-12-21 13:37:11,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:37:11,771 INFO L93 Difference]: Finished difference Result 117585 states and 173774 transitions. [2023-12-21 13:37:11,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 13:37:11,771 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 [2023-12-21 13:37:11,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:37:11,881 INFO L225 Difference]: With dead ends: 117585 [2023-12-21 13:37:11,881 INFO L226 Difference]: Without dead ends: 71125 [2023-12-21 13:37:11,897 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 [2023-12-21 13:37:11,897 INFO L413 NwaCegarLoop]: 289 mSDtfsCounter, 211 mSDsluCounter, 269 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 211 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 [2023-12-21 13:37:11,897 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [211 Valid, 558 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 13:37:11,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71125 states. [2023-12-21 13:37:12,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71125 to 70971. [2023-12-21 13:37:12,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70971 states, 70970 states have (on average 1.4622657460898971) internal successors, (103777), 70970 states have internal predecessors, (103777), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:37:13,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70971 states to 70971 states and 103777 transitions. [2023-12-21 13:37:13,043 INFO L78 Accepts]: Start accepts. Automaton has 70971 states and 103777 transitions. Word has length 84 [2023-12-21 13:37:13,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:37:13,043 INFO L495 AbstractCegarLoop]: Abstraction has 70971 states and 103777 transitions. [2023-12-21 13:37:13,043 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) [2023-12-21 13:37:13,043 INFO L276 IsEmpty]: Start isEmpty. Operand 70971 states and 103777 transitions. [2023-12-21 13:37:13,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2023-12-21 13:37:13,050 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:37:13,050 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] [2023-12-21 13:37:13,050 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-12-21 13:37:13,050 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 13:37:13,051 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:37:13,051 INFO L85 PathProgramCache]: Analyzing trace with hash -1506222844, now seen corresponding path program 1 times [2023-12-21 13:37:13,051 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:37:13,051 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1080100978] [2023-12-21 13:37:13,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:37:13,051 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:37:13,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:37:13,084 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:37:13,084 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:37:13,084 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1080100978] [2023-12-21 13:37:13,084 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1080100978] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:37:13,084 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:37:13,084 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 13:37:13,084 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1686845300] [2023-12-21 13:37:13,084 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:37:13,085 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 13:37:13,085 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:37:13,085 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 13:37:13,085 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 13:37:13,085 INFO L87 Difference]: Start difference. First operand 70971 states and 103777 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) [2023-12-21 13:37:13,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:37:13,467 INFO L93 Difference]: Finished difference Result 138385 states and 202346 transitions. [2023-12-21 13:37:13,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 13:37:13,467 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 [2023-12-21 13:37:13,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:37:13,588 INFO L225 Difference]: With dead ends: 138385 [2023-12-21 13:37:13,588 INFO L226 Difference]: Without dead ends: 85331 [2023-12-21 13:37:13,889 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 [2023-12-21 13:37:13,891 INFO L413 NwaCegarLoop]: 398 mSDtfsCounter, 187 mSDsluCounter, 268 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 187 SdHoareTripleChecker+Valid, 666 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 [2023-12-21 13:37:13,891 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [187 Valid, 666 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 13:37:13,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85331 states. [2023-12-21 13:37:14,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85331 to 84561. [2023-12-21 13:37:14,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84561 states, 84560 states have (on average 1.4373699148533585) internal successors, (121544), 84560 states have internal predecessors, (121544), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:37:15,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84561 states to 84561 states and 121544 transitions. [2023-12-21 13:37:15,024 INFO L78 Accepts]: Start accepts. Automaton has 84561 states and 121544 transitions. Word has length 84 [2023-12-21 13:37:15,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:37:15,024 INFO L495 AbstractCegarLoop]: Abstraction has 84561 states and 121544 transitions. [2023-12-21 13:37:15,024 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) [2023-12-21 13:37:15,024 INFO L276 IsEmpty]: Start isEmpty. Operand 84561 states and 121544 transitions. [2023-12-21 13:37:15,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2023-12-21 13:37:15,030 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:37:15,030 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] [2023-12-21 13:37:15,030 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-12-21 13:37:15,031 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 13:37:15,031 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:37:15,031 INFO L85 PathProgramCache]: Analyzing trace with hash 2020876259, now seen corresponding path program 1 times [2023-12-21 13:37:15,031 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:37:15,031 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1789576118] [2023-12-21 13:37:15,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:37:15,031 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:37:15,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:37:15,118 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:37:15,119 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:37:15,119 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1789576118] [2023-12-21 13:37:15,119 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1789576118] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:37:15,119 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:37:15,119 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 13:37:15,119 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [590626828] [2023-12-21 13:37:15,119 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:37:15,120 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 13:37:15,120 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:37:15,120 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 13:37:15,121 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 13:37:15,121 INFO L87 Difference]: Start difference. First operand 84561 states and 121544 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) [2023-12-21 13:37:15,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:37:15,950 INFO L93 Difference]: Finished difference Result 182795 states and 262010 transitions. [2023-12-21 13:37:15,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 13:37:15,950 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 [2023-12-21 13:37:15,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:37:16,124 INFO L225 Difference]: With dead ends: 182795 [2023-12-21 13:37:16,124 INFO L226 Difference]: Without dead ends: 104145 [2023-12-21 13:37:16,174 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 [2023-12-21 13:37:16,174 INFO L413 NwaCegarLoop]: 289 mSDtfsCounter, 200 mSDsluCounter, 267 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 200 SdHoareTripleChecker+Valid, 556 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 [2023-12-21 13:37:16,174 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [200 Valid, 556 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 13:37:16,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104145 states. [2023-12-21 13:37:17,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104145 to 103427. [2023-12-21 13:37:17,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103427 states, 103426 states have (on average 1.4073733877361592) internal successors, (145559), 103426 states have internal predecessors, (145559), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:37:17,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103427 states to 103427 states and 145559 transitions. [2023-12-21 13:37:17,601 INFO L78 Accepts]: Start accepts. Automaton has 103427 states and 145559 transitions. Word has length 84 [2023-12-21 13:37:17,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:37:17,601 INFO L495 AbstractCegarLoop]: Abstraction has 103427 states and 145559 transitions. [2023-12-21 13:37:17,601 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) [2023-12-21 13:37:17,601 INFO L276 IsEmpty]: Start isEmpty. Operand 103427 states and 145559 transitions. [2023-12-21 13:37:17,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2023-12-21 13:37:17,607 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:37:17,608 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] [2023-12-21 13:37:17,608 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-12-21 13:37:17,608 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 13:37:17,608 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:37:17,608 INFO L85 PathProgramCache]: Analyzing trace with hash 782936475, now seen corresponding path program 1 times [2023-12-21 13:37:17,608 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:37:17,608 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1675732183] [2023-12-21 13:37:17,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:37:17,608 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:37:17,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:37:17,681 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:37:17,681 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:37:17,681 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1675732183] [2023-12-21 13:37:17,682 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1675732183] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:37:17,682 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:37:17,682 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 13:37:17,682 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1430038728] [2023-12-21 13:37:17,682 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:37:17,682 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-21 13:37:17,682 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:37:17,682 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-21 13:37:17,682 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-21 13:37:17,683 INFO L87 Difference]: Start difference. First operand 103427 states and 145559 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) [2023-12-21 13:37:18,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:37:18,615 INFO L93 Difference]: Finished difference Result 251899 states and 357363 transitions. [2023-12-21 13:37:18,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-21 13:37:18,616 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 [2023-12-21 13:37:18,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:37:19,278 INFO L225 Difference]: With dead ends: 251899 [2023-12-21 13:37:19,278 INFO L226 Difference]: Without dead ends: 214493 [2023-12-21 13:37:19,305 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 [2023-12-21 13:37:19,306 INFO L413 NwaCegarLoop]: 448 mSDtfsCounter, 1761 mSDsluCounter, 1232 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1761 SdHoareTripleChecker+Valid, 1680 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 13:37:19,307 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1761 Valid, 1680 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 13:37:19,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 214493 states. [2023-12-21 13:37:21,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 214493 to 140378. [2023-12-21 13:37:21,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 140378 states, 140377 states have (on average 1.4078303425774878) internal successors, (197627), 140377 states have internal predecessors, (197627), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:37:21,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140378 states to 140378 states and 197627 transitions. [2023-12-21 13:37:21,741 INFO L78 Accepts]: Start accepts. Automaton has 140378 states and 197627 transitions. Word has length 85 [2023-12-21 13:37:21,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:37:21,741 INFO L495 AbstractCegarLoop]: Abstraction has 140378 states and 197627 transitions. [2023-12-21 13:37:21,742 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) [2023-12-21 13:37:21,742 INFO L276 IsEmpty]: Start isEmpty. Operand 140378 states and 197627 transitions. [2023-12-21 13:37:21,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2023-12-21 13:37:21,750 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:37:21,750 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] [2023-12-21 13:37:21,750 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-12-21 13:37:21,751 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 13:37:21,751 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:37:21,751 INFO L85 PathProgramCache]: Analyzing trace with hash 1882709334, now seen corresponding path program 1 times [2023-12-21 13:37:21,751 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:37:21,751 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [525806833] [2023-12-21 13:37:21,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:37:21,751 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:37:21,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:37:21,934 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:37:21,934 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:37:21,934 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [525806833] [2023-12-21 13:37:21,934 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [525806833] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:37:21,935 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:37:21,935 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 13:37:21,935 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1997754178] [2023-12-21 13:37:21,935 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:37:21,936 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-21 13:37:21,936 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:37:21,936 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-21 13:37:21,936 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-21 13:37:21,937 INFO L87 Difference]: Start difference. First operand 140378 states and 197627 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) [2023-12-21 13:37:23,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:37:23,070 INFO L93 Difference]: Finished difference Result 262913 states and 372422 transitions. [2023-12-21 13:37:23,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-21 13:37:23,084 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 [2023-12-21 13:37:23,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:37:23,497 INFO L225 Difference]: With dead ends: 262913 [2023-12-21 13:37:23,498 INFO L226 Difference]: Without dead ends: 238539 [2023-12-21 13:37:23,560 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 [2023-12-21 13:37:23,561 INFO L413 NwaCegarLoop]: 437 mSDtfsCounter, 1858 mSDsluCounter, 1248 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1858 SdHoareTripleChecker+Valid, 1685 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 13:37:23,561 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1858 Valid, 1685 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 13:37:23,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 238539 states. [2023-12-21 13:37:25,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 238539 to 155700. [2023-12-21 13:37:25,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 155700 states, 155699 states have (on average 1.4095337799215153) internal successors, (219463), 155699 states have internal predecessors, (219463), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:37:26,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155700 states to 155700 states and 219463 transitions. [2023-12-21 13:37:26,154 INFO L78 Accepts]: Start accepts. Automaton has 155700 states and 219463 transitions. Word has length 85 [2023-12-21 13:37:26,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:37:26,155 INFO L495 AbstractCegarLoop]: Abstraction has 155700 states and 219463 transitions. [2023-12-21 13:37:26,155 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) [2023-12-21 13:37:26,155 INFO L276 IsEmpty]: Start isEmpty. Operand 155700 states and 219463 transitions. [2023-12-21 13:37:26,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2023-12-21 13:37:26,161 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:37:26,161 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] [2023-12-21 13:37:26,161 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-12-21 13:37:26,161 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 13:37:26,162 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:37:26,162 INFO L85 PathProgramCache]: Analyzing trace with hash -657030305, now seen corresponding path program 1 times [2023-12-21 13:37:26,162 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:37:26,162 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1026047296] [2023-12-21 13:37:26,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:37:26,162 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:37:26,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:37:26,227 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:37:26,227 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:37:26,227 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1026047296] [2023-12-21 13:37:26,227 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1026047296] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:37:26,227 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:37:26,227 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 13:37:26,227 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [760754475] [2023-12-21 13:37:26,228 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:37:26,228 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-21 13:37:26,228 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:37:26,228 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-21 13:37:26,228 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-21 13:37:26,228 INFO L87 Difference]: Start difference. First operand 155700 states and 219463 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) [2023-12-21 13:37:27,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:37:27,226 INFO L93 Difference]: Finished difference Result 260195 states and 368192 transitions. [2023-12-21 13:37:27,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-21 13:37:27,226 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 [2023-12-21 13:37:27,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:37:27,635 INFO L225 Difference]: With dead ends: 260195 [2023-12-21 13:37:27,635 INFO L226 Difference]: Without dead ends: 249285 [2023-12-21 13:37:27,715 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 [2023-12-21 13:37:27,715 INFO L413 NwaCegarLoop]: 430 mSDtfsCounter, 1766 mSDsluCounter, 1362 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1766 SdHoareTripleChecker+Valid, 1792 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 13:37:27,716 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1766 Valid, 1792 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 13:37:27,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 249285 states. [2023-12-21 13:37:30,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 249285 to 166446. [2023-12-21 13:37:30,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 166446 states, 166445 states have (on average 1.409696896872841) internal successors, (234637), 166445 states have internal predecessors, (234637), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:37:31,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166446 states to 166446 states and 234637 transitions. [2023-12-21 13:37:31,068 INFO L78 Accepts]: Start accepts. Automaton has 166446 states and 234637 transitions. Word has length 85 [2023-12-21 13:37:31,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:37:31,068 INFO L495 AbstractCegarLoop]: Abstraction has 166446 states and 234637 transitions. [2023-12-21 13:37:31,068 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) [2023-12-21 13:37:31,068 INFO L276 IsEmpty]: Start isEmpty. Operand 166446 states and 234637 transitions. [2023-12-21 13:37:31,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2023-12-21 13:37:31,074 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:37:31,074 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] [2023-12-21 13:37:31,074 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2023-12-21 13:37:31,074 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 13:37:31,074 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:37:31,075 INFO L85 PathProgramCache]: Analyzing trace with hash 27365530, now seen corresponding path program 1 times [2023-12-21 13:37:31,075 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:37:31,075 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2043489449] [2023-12-21 13:37:31,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:37:31,075 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:37:31,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:37:31,165 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:37:31,165 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:37:31,165 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2043489449] [2023-12-21 13:37:31,165 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2043489449] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:37:31,165 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:37:31,165 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 13:37:31,166 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1175374698] [2023-12-21 13:37:31,166 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:37:31,166 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-21 13:37:31,166 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:37:31,166 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-21 13:37:31,166 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-21 13:37:31,166 INFO L87 Difference]: Start difference. First operand 166446 states and 234637 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) [2023-12-21 13:37:32,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:37:32,695 INFO L93 Difference]: Finished difference Result 332076 states and 470445 transitions. [2023-12-21 13:37:32,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-21 13:37:32,696 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 [2023-12-21 13:37:32,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:37:33,380 INFO L225 Difference]: With dead ends: 332076 [2023-12-21 13:37:33,381 INFO L226 Difference]: Without dead ends: 286054 [2023-12-21 13:37:33,520 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 [2023-12-21 13:37:33,520 INFO L413 NwaCegarLoop]: 464 mSDtfsCounter, 1666 mSDsluCounter, 1615 mSDsCounter, 0 mSdLazyCounter, 98 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1666 SdHoareTripleChecker+Valid, 2079 SdHoareTripleChecker+Invalid, 99 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 98 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 13:37:33,520 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1666 Valid, 2079 Invalid, 99 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 98 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 13:37:33,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 286054 states. [2023-12-21 13:37:36,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 286054 to 191709. [2023-12-21 13:37:36,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 191709 states, 191708 states have (on average 1.4109061697999041) internal successors, (270482), 191708 states have internal predecessors, (270482), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:37:37,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191709 states to 191709 states and 270482 transitions. [2023-12-21 13:37:37,135 INFO L78 Accepts]: Start accepts. Automaton has 191709 states and 270482 transitions. Word has length 85 [2023-12-21 13:37:37,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:37:37,136 INFO L495 AbstractCegarLoop]: Abstraction has 191709 states and 270482 transitions. [2023-12-21 13:37:37,136 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) [2023-12-21 13:37:37,136 INFO L276 IsEmpty]: Start isEmpty. Operand 191709 states and 270482 transitions. [2023-12-21 13:37:37,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2023-12-21 13:37:37,143 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:37:37,143 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] [2023-12-21 13:37:37,144 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2023-12-21 13:37:37,144 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 13:37:37,145 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:37:37,146 INFO L85 PathProgramCache]: Analyzing trace with hash 975723729, now seen corresponding path program 1 times [2023-12-21 13:37:37,146 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:37:37,146 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1900805528] [2023-12-21 13:37:37,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:37:37,146 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:37:37,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:37:37,213 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:37:37,213 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:37:37,213 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1900805528] [2023-12-21 13:37:37,214 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1900805528] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:37:37,214 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:37:37,214 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 13:37:37,214 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1118112306] [2023-12-21 13:37:37,214 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:37:37,214 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-21 13:37:37,214 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:37:37,214 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-21 13:37:37,214 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-21 13:37:37,215 INFO L87 Difference]: Start difference. First operand 191709 states and 270482 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) [2023-12-21 13:37:38,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:37:38,662 INFO L93 Difference]: Finished difference Result 367772 states and 520646 transitions. [2023-12-21 13:37:38,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-21 13:37:38,663 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 [2023-12-21 13:37:38,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:37:39,652 INFO L225 Difference]: With dead ends: 367772 [2023-12-21 13:37:39,652 INFO L226 Difference]: Without dead ends: 324309 [2023-12-21 13:37:39,725 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 [2023-12-21 13:37:39,726 INFO L413 NwaCegarLoop]: 470 mSDtfsCounter, 1675 mSDsluCounter, 1391 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1675 SdHoareTripleChecker+Valid, 1861 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-21 13:37:39,726 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1675 Valid, 1861 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-21 13:37:39,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 324309 states. [2023-12-21 13:37:42,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 324309 to 209966. [2023-12-21 13:37:42,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 209966 states, 209965 states have (on average 1.4111399518967447) internal successors, (296290), 209965 states have internal predecessors, (296290), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:37:43,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209966 states to 209966 states and 296290 transitions. [2023-12-21 13:37:43,586 INFO L78 Accepts]: Start accepts. Automaton has 209966 states and 296290 transitions. Word has length 85 [2023-12-21 13:37:43,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:37:43,586 INFO L495 AbstractCegarLoop]: Abstraction has 209966 states and 296290 transitions. [2023-12-21 13:37:43,587 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) [2023-12-21 13:37:43,587 INFO L276 IsEmpty]: Start isEmpty. Operand 209966 states and 296290 transitions. [2023-12-21 13:37:43,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2023-12-21 13:37:43,597 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:37:43,597 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] [2023-12-21 13:37:43,597 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2023-12-21 13:37:43,597 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 13:37:43,597 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:37:43,597 INFO L85 PathProgramCache]: Analyzing trace with hash -1224872690, now seen corresponding path program 1 times [2023-12-21 13:37:43,597 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:37:43,598 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [883272928] [2023-12-21 13:37:43,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:37:43,598 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:37:43,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:37:43,671 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:37:43,672 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:37:43,672 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [883272928] [2023-12-21 13:37:43,672 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [883272928] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:37:43,672 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:37:43,672 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-21 13:37:43,672 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [65053926] [2023-12-21 13:37:43,672 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:37:43,672 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-21 13:37:43,672 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:37:43,673 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-21 13:37:43,673 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-21 13:37:43,673 INFO L87 Difference]: Start difference. First operand 209966 states and 296290 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) [2023-12-21 13:37:47,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:37:47,835 INFO L93 Difference]: Finished difference Result 1036813 states and 1453208 transitions. [2023-12-21 13:37:47,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-21 13:37:47,835 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 [2023-12-21 13:37:47,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:37:50,381 INFO L225 Difference]: With dead ends: 1036813 [2023-12-21 13:37:50,382 INFO L226 Difference]: Without dead ends: 936256 [2023-12-21 13:37:50,595 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 [2023-12-21 13:37:50,596 INFO L413 NwaCegarLoop]: 173 mSDtfsCounter, 3391 mSDsluCounter, 473 mSDsCounter, 0 mSdLazyCounter, 441 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3391 SdHoareTripleChecker+Valid, 646 SdHoareTripleChecker+Invalid, 463 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 441 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-21 13:37:50,596 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3391 Valid, 646 Invalid, 463 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 441 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-21 13:37:51,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 936256 states. [2023-12-21 13:37:58,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 936256 to 210298. [2023-12-21 13:37:58,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 210298 states, 210297 states have (on average 1.410852270836008) internal successors, (296698), 210297 states have internal predecessors, (296698), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:37:59,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210298 states to 210298 states and 296698 transitions. [2023-12-21 13:37:59,244 INFO L78 Accepts]: Start accepts. Automaton has 210298 states and 296698 transitions. Word has length 90 [2023-12-21 13:37:59,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:37:59,244 INFO L495 AbstractCegarLoop]: Abstraction has 210298 states and 296698 transitions. [2023-12-21 13:37:59,244 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) [2023-12-21 13:37:59,244 INFO L276 IsEmpty]: Start isEmpty. Operand 210298 states and 296698 transitions. [2023-12-21 13:37:59,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2023-12-21 13:37:59,254 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:37:59,254 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] [2023-12-21 13:37:59,254 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2023-12-21 13:37:59,254 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 13:37:59,254 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:37:59,254 INFO L85 PathProgramCache]: Analyzing trace with hash 1754100398, now seen corresponding path program 1 times [2023-12-21 13:37:59,255 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:37:59,255 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1861889013] [2023-12-21 13:37:59,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:37:59,255 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:37:59,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:37:59,386 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:37:59,386 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:37:59,386 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1861889013] [2023-12-21 13:37:59,386 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1861889013] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:37:59,386 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:37:59,386 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-21 13:37:59,386 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1147857699] [2023-12-21 13:37:59,386 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:37:59,387 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-21 13:37:59,387 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:37:59,387 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-21 13:37:59,387 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-21 13:37:59,388 INFO L87 Difference]: Start difference. First operand 210298 states and 296698 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) [2023-12-21 13:38:03,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:38:03,464 INFO L93 Difference]: Finished difference Result 895741 states and 1251142 transitions. [2023-12-21 13:38:03,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-21 13:38:03,464 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 [2023-12-21 13:38:03,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:38:06,049 INFO L225 Difference]: With dead ends: 895741 [2023-12-21 13:38:06,049 INFO L226 Difference]: Without dead ends: 823916 [2023-12-21 13:38:06,458 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 [2023-12-21 13:38:06,459 INFO L413 NwaCegarLoop]: 227 mSDtfsCounter, 2668 mSDsluCounter, 463 mSDsCounter, 0 mSdLazyCounter, 492 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2668 SdHoareTripleChecker+Valid, 690 SdHoareTripleChecker+Invalid, 508 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 492 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-21 13:38:06,459 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2668 Valid, 690 Invalid, 508 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 492 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-21 13:38:07,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 823916 states. [2023-12-21 13:38:13,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 823916 to 210837. [2023-12-21 13:38:13,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 210837 states, 210836 states have (on average 1.4103378929594566) internal successors, (297350), 210836 states have internal predecessors, (297350), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:38:14,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210837 states to 210837 states and 297350 transitions. [2023-12-21 13:38:14,242 INFO L78 Accepts]: Start accepts. Automaton has 210837 states and 297350 transitions. Word has length 90 [2023-12-21 13:38:14,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:38:14,242 INFO L495 AbstractCegarLoop]: Abstraction has 210837 states and 297350 transitions. [2023-12-21 13:38:14,242 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) [2023-12-21 13:38:14,242 INFO L276 IsEmpty]: Start isEmpty. Operand 210837 states and 297350 transitions. [2023-12-21 13:38:14,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2023-12-21 13:38:14,267 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:38:14,267 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] [2023-12-21 13:38:14,267 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2023-12-21 13:38:14,267 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 13:38:14,268 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:38:14,268 INFO L85 PathProgramCache]: Analyzing trace with hash -1018406798, now seen corresponding path program 1 times [2023-12-21 13:38:14,268 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:38:14,268 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [81686183] [2023-12-21 13:38:14,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:38:14,268 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:38:14,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:38:14,339 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:38:14,340 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:38:14,340 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [81686183] [2023-12-21 13:38:14,340 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [81686183] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:38:14,340 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:38:14,340 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-21 13:38:14,340 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [286291419] [2023-12-21 13:38:14,340 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:38:14,340 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-21 13:38:14,340 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:38:14,341 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-21 13:38:14,341 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-21 13:38:14,341 INFO L87 Difference]: Start difference. First operand 210837 states and 297350 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) [2023-12-21 13:38:18,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:38:18,779 INFO L93 Difference]: Finished difference Result 1039100 states and 1462249 transitions. [2023-12-21 13:38:18,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-21 13:38:18,780 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 [2023-12-21 13:38:18,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:38:21,634 INFO L225 Difference]: With dead ends: 1039100 [2023-12-21 13:38:21,634 INFO L226 Difference]: Without dead ends: 924068 [2023-12-21 13:38:21,832 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 [2023-12-21 13:38:21,832 INFO L413 NwaCegarLoop]: 176 mSDtfsCounter, 3705 mSDsluCounter, 494 mSDsCounter, 0 mSdLazyCounter, 459 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3705 SdHoareTripleChecker+Valid, 670 SdHoareTripleChecker+Invalid, 481 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 459 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-21 13:38:21,857 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3705 Valid, 670 Invalid, 481 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 459 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-21 13:38:22,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 924068 states. [2023-12-21 13:38:30,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 924068 to 211099. [2023-12-21 13:38:30,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 211099 states, 211098 states have (on average 1.410079678632673) internal successors, (297665), 211098 states have internal predecessors, (297665), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:38:31,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211099 states to 211099 states and 297665 transitions. [2023-12-21 13:38:31,314 INFO L78 Accepts]: Start accepts. Automaton has 211099 states and 297665 transitions. Word has length 90 [2023-12-21 13:38:31,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:38:31,315 INFO L495 AbstractCegarLoop]: Abstraction has 211099 states and 297665 transitions. [2023-12-21 13:38:31,315 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) [2023-12-21 13:38:31,315 INFO L276 IsEmpty]: Start isEmpty. Operand 211099 states and 297665 transitions. [2023-12-21 13:38:31,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2023-12-21 13:38:31,324 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:38:31,325 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] [2023-12-21 13:38:31,325 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2023-12-21 13:38:31,325 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 13:38:31,325 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:38:31,325 INFO L85 PathProgramCache]: Analyzing trace with hash 799926217, now seen corresponding path program 1 times [2023-12-21 13:38:31,325 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:38:31,325 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [41164713] [2023-12-21 13:38:31,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:38:31,325 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:38:31,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:38:31,390 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:38:31,390 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:38:31,390 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [41164713] [2023-12-21 13:38:31,390 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [41164713] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:38:31,390 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:38:31,390 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-21 13:38:31,390 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1763307841] [2023-12-21 13:38:31,390 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:38:31,391 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-21 13:38:31,391 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:38:31,391 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-21 13:38:31,391 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-21 13:38:31,391 INFO L87 Difference]: Start difference. First operand 211099 states and 297665 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) [2023-12-21 13:38:34,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:38:34,383 INFO L93 Difference]: Finished difference Result 723134 states and 1013737 transitions. [2023-12-21 13:38:34,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-21 13:38:34,383 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 [2023-12-21 13:38:34,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:38:36,108 INFO L225 Difference]: With dead ends: 723134 [2023-12-21 13:38:36,109 INFO L226 Difference]: Without dead ends: 665692 [2023-12-21 13:38:36,801 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 [2023-12-21 13:38:36,816 INFO L413 NwaCegarLoop]: 183 mSDtfsCounter, 2895 mSDsluCounter, 368 mSDsCounter, 0 mSdLazyCounter, 350 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2895 SdHoareTripleChecker+Valid, 551 SdHoareTripleChecker+Invalid, 374 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 350 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-21 13:38:36,817 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2895 Valid, 551 Invalid, 374 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 350 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-21 13:38:37,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 665692 states. [2023-12-21 13:38:41,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 665692 to 280029. [2023-12-21 13:38:41,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 280029 states, 280028 states have (on average 1.4075021069321638) internal successors, (394140), 280028 states have internal predecessors, (394140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:38:43,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 280029 states to 280029 states and 394140 transitions. [2023-12-21 13:38:43,371 INFO L78 Accepts]: Start accepts. Automaton has 280029 states and 394140 transitions. Word has length 90 [2023-12-21 13:38:43,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:38:43,372 INFO L495 AbstractCegarLoop]: Abstraction has 280029 states and 394140 transitions. [2023-12-21 13:38:43,372 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) [2023-12-21 13:38:43,372 INFO L276 IsEmpty]: Start isEmpty. Operand 280029 states and 394140 transitions. [2023-12-21 13:38:43,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2023-12-21 13:38:43,387 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:38:43,387 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] [2023-12-21 13:38:43,387 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2023-12-21 13:38:43,387 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 13:38:43,387 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:38:43,387 INFO L85 PathProgramCache]: Analyzing trace with hash -355260238, now seen corresponding path program 1 times [2023-12-21 13:38:43,387 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:38:43,388 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [503626993] [2023-12-21 13:38:43,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:38:43,388 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:38:43,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:38:43,536 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:38:43,536 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:38:43,536 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [503626993] [2023-12-21 13:38:43,536 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [503626993] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:38:43,536 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:38:43,536 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-21 13:38:43,536 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1635760141] [2023-12-21 13:38:43,536 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:38:43,536 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-21 13:38:43,537 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:38:43,537 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-21 13:38:43,537 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-21 13:38:43,537 INFO L87 Difference]: Start difference. First operand 280029 states and 394140 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) [2023-12-21 13:38:47,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:38:47,629 INFO L93 Difference]: Finished difference Result 931026 states and 1304124 transitions. [2023-12-21 13:38:47,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-21 13:38:47,629 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 [2023-12-21 13:38:47,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:38:49,407 INFO L225 Difference]: With dead ends: 931026 [2023-12-21 13:38:49,408 INFO L226 Difference]: Without dead ends: 799624 [2023-12-21 13:38:49,958 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 [2023-12-21 13:38:49,958 INFO L413 NwaCegarLoop]: 176 mSDtfsCounter, 2867 mSDsluCounter, 319 mSDsCounter, 0 mSdLazyCounter, 317 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2867 SdHoareTripleChecker+Valid, 495 SdHoareTripleChecker+Invalid, 341 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 317 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-21 13:38:49,958 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2867 Valid, 495 Invalid, 341 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 317 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-21 13:38:50,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 799624 states. [2023-12-21 13:38:56,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 799624 to 280149. [2023-12-21 13:38:56,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 280149 states, 280148 states have (on average 1.4074132244385111) internal successors, (394284), 280148 states have internal predecessors, (394284), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:38:57,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 280149 states to 280149 states and 394284 transitions. [2023-12-21 13:38:57,700 INFO L78 Accepts]: Start accepts. Automaton has 280149 states and 394284 transitions. Word has length 90 [2023-12-21 13:38:57,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:38:57,700 INFO L495 AbstractCegarLoop]: Abstraction has 280149 states and 394284 transitions. [2023-12-21 13:38:57,700 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) [2023-12-21 13:38:57,700 INFO L276 IsEmpty]: Start isEmpty. Operand 280149 states and 394284 transitions. [2023-12-21 13:38:57,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2023-12-21 13:38:57,715 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:38:57,715 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] [2023-12-21 13:38:57,715 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2023-12-21 13:38:57,715 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 13:38:57,716 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:38:57,716 INFO L85 PathProgramCache]: Analyzing trace with hash 1119772922, now seen corresponding path program 1 times [2023-12-21 13:38:57,716 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:38:57,716 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [636028974] [2023-12-21 13:38:57,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:38:57,716 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:38:57,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:38:58,636 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:38:58,636 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:38:58,636 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [636028974] [2023-12-21 13:38:58,636 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [636028974] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:38:58,636 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:38:58,636 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-12-21 13:38:58,636 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [520152136] [2023-12-21 13:38:58,636 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:38:58,636 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-12-21 13:38:58,637 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:38:58,637 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-12-21 13:38:58,637 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2023-12-21 13:38:58,637 INFO L87 Difference]: Start difference. First operand 280149 states and 394284 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) [2023-12-21 13:39:03,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:39:03,227 INFO L93 Difference]: Finished difference Result 1157666 states and 1627513 transitions. [2023-12-21 13:39:03,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-12-21 13:39:03,228 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 [2023-12-21 13:39:03,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:39:05,772 INFO L225 Difference]: With dead ends: 1157666 [2023-12-21 13:39:05,772 INFO L226 Difference]: Without dead ends: 1083356 [2023-12-21 13:39:05,949 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 [2023-12-21 13:39:05,949 INFO L413 NwaCegarLoop]: 504 mSDtfsCounter, 2343 mSDsluCounter, 3721 mSDsCounter, 0 mSdLazyCounter, 650 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2343 SdHoareTripleChecker+Valid, 4225 SdHoareTripleChecker+Invalid, 654 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 650 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-21 13:39:05,949 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2343 Valid, 4225 Invalid, 654 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 650 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-21 13:39:07,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1083356 states. [2023-12-21 13:39:15,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1083356 to 280121. [2023-12-21 13:39:15,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 280121 states, 280120 states have (on average 1.4073575610452662) internal successors, (394229), 280120 states have internal predecessors, (394229), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:39:16,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 280121 states to 280121 states and 394229 transitions. [2023-12-21 13:39:16,692 INFO L78 Accepts]: Start accepts. Automaton has 280121 states and 394229 transitions. Word has length 92 [2023-12-21 13:39:16,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:39:16,693 INFO L495 AbstractCegarLoop]: Abstraction has 280121 states and 394229 transitions. [2023-12-21 13:39:16,693 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) [2023-12-21 13:39:16,693 INFO L276 IsEmpty]: Start isEmpty. Operand 280121 states and 394229 transitions. [2023-12-21 13:39:16,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2023-12-21 13:39:16,708 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:39:16,708 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] [2023-12-21 13:39:16,708 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2023-12-21 13:39:16,709 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 13:39:16,709 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:39:16,709 INFO L85 PathProgramCache]: Analyzing trace with hash 1262702133, now seen corresponding path program 1 times [2023-12-21 13:39:16,709 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:39:16,709 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [284945443] [2023-12-21 13:39:16,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:39:16,709 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:39:16,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:39:17,150 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:39:17,151 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:39:17,151 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [284945443] [2023-12-21 13:39:17,151 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [284945443] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:39:17,151 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:39:17,151 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-12-21 13:39:17,151 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1477903758] [2023-12-21 13:39:17,151 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:39:17,151 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-12-21 13:39:17,151 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:39:17,151 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-12-21 13:39:17,152 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2023-12-21 13:39:17,152 INFO L87 Difference]: Start difference. First operand 280121 states and 394229 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) [2023-12-21 13:39:22,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:39:22,575 INFO L93 Difference]: Finished difference Result 1096766 states and 1543829 transitions. [2023-12-21 13:39:22,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-12-21 13:39:22,576 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 [2023-12-21 13:39:22,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:39:25,322 INFO L225 Difference]: With dead ends: 1096766 [2023-12-21 13:39:25,322 INFO L226 Difference]: Without dead ends: 1056460 [2023-12-21 13:39:25,530 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 [2023-12-21 13:39:25,531 INFO L413 NwaCegarLoop]: 583 mSDtfsCounter, 4411 mSDsluCounter, 3128 mSDsCounter, 0 mSdLazyCounter, 528 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4411 SdHoareTripleChecker+Valid, 3711 SdHoareTripleChecker+Invalid, 533 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 528 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-21 13:39:25,531 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4411 Valid, 3711 Invalid, 533 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 528 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-21 13:39:26,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1056460 states. [2023-12-21 13:39:34,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1056460 to 275827. [2023-12-21 13:39:34,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 275827 states, 275826 states have (on average 1.4078875813012552) internal successors, (388332), 275826 states have internal predecessors, (388332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:39:34,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 275827 states to 275827 states and 388332 transitions. [2023-12-21 13:39:34,769 INFO L78 Accepts]: Start accepts. Automaton has 275827 states and 388332 transitions. Word has length 92 [2023-12-21 13:39:34,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:39:34,769 INFO L495 AbstractCegarLoop]: Abstraction has 275827 states and 388332 transitions. [2023-12-21 13:39:34,769 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) [2023-12-21 13:39:34,769 INFO L276 IsEmpty]: Start isEmpty. Operand 275827 states and 388332 transitions. [2023-12-21 13:39:34,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2023-12-21 13:39:34,784 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:39:34,784 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] [2023-12-21 13:39:34,784 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2023-12-21 13:39:34,784 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 13:39:34,785 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:39:34,785 INFO L85 PathProgramCache]: Analyzing trace with hash -487805314, now seen corresponding path program 1 times [2023-12-21 13:39:34,785 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:39:34,785 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [38745506] [2023-12-21 13:39:34,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:39:34,785 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:39:35,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:39:35,503 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:39:35,503 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:39:35,503 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [38745506] [2023-12-21 13:39:35,503 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [38745506] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:39:35,503 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:39:35,503 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-12-21 13:39:35,504 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1383441654] [2023-12-21 13:39:35,504 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:39:35,504 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-12-21 13:39:35,504 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:39:35,505 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-12-21 13:39:35,505 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2023-12-21 13:39:35,505 INFO L87 Difference]: Start difference. First operand 275827 states and 388332 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) [2023-12-21 13:39:41,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:39:41,173 INFO L93 Difference]: Finished difference Result 1398932 states and 1970410 transitions. [2023-12-21 13:39:41,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-12-21 13:39:41,174 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 [2023-12-21 13:39:41,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:39:45,460 INFO L225 Difference]: With dead ends: 1398932 [2023-12-21 13:39:45,461 INFO L226 Difference]: Without dead ends: 1282760 [2023-12-21 13:39:45,834 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 [2023-12-21 13:39:45,835 INFO L413 NwaCegarLoop]: 649 mSDtfsCounter, 1947 mSDsluCounter, 4836 mSDsCounter, 0 mSdLazyCounter, 749 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1947 SdHoareTripleChecker+Valid, 5485 SdHoareTripleChecker+Invalid, 753 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 749 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-21 13:39:45,835 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1947 Valid, 5485 Invalid, 753 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 749 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-21 13:39:47,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1282760 states. [2023-12-21 13:39:57,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1282760 to 275599. [2023-12-21 13:39:57,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 275599 states, 275598 states have (on average 1.4080435997358471) internal successors, (388054), 275598 states have internal predecessors, (388054), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:39:58,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 275599 states to 275599 states and 388054 transitions. [2023-12-21 13:39:58,277 INFO L78 Accepts]: Start accepts. Automaton has 275599 states and 388054 transitions. Word has length 92 [2023-12-21 13:39:58,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:39:58,277 INFO L495 AbstractCegarLoop]: Abstraction has 275599 states and 388054 transitions. [2023-12-21 13:39:58,277 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) [2023-12-21 13:39:58,277 INFO L276 IsEmpty]: Start isEmpty. Operand 275599 states and 388054 transitions. [2023-12-21 13:39:58,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2023-12-21 13:39:58,291 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:39:58,291 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] [2023-12-21 13:39:58,292 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2023-12-21 13:39:58,292 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 13:39:58,292 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:39:58,292 INFO L85 PathProgramCache]: Analyzing trace with hash 627980850, now seen corresponding path program 1 times [2023-12-21 13:39:58,292 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:39:58,293 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1300898067] [2023-12-21 13:39:58,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:39:58,293 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:39:58,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:39:58,317 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:39:58,317 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:39:58,317 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1300898067] [2023-12-21 13:39:58,317 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1300898067] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:39:58,317 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:39:58,318 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 13:39:58,318 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [417240453] [2023-12-21 13:39:58,318 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:39:58,318 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 13:39:58,318 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:39:58,318 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 13:39:58,318 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 13:39:58,318 INFO L87 Difference]: Start difference. First operand 275599 states and 388054 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) [2023-12-21 13:40:00,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:40:00,661 INFO L93 Difference]: Finished difference Result 615158 states and 866303 transitions. [2023-12-21 13:40:00,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 13:40:00,662 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 [2023-12-21 13:40:00,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:40:01,989 INFO L225 Difference]: With dead ends: 615158 [2023-12-21 13:40:01,990 INFO L226 Difference]: Without dead ends: 432759 [2023-12-21 13:40:02,075 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 [2023-12-21 13:40:02,076 INFO L413 NwaCegarLoop]: 278 mSDtfsCounter, 231 mSDsluCounter, 162 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 231 SdHoareTripleChecker+Valid, 440 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 13:40:02,076 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [231 Valid, 440 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 13:40:02,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 432759 states. [2023-12-21 13:40:07,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 432759 to 431503. [2023-12-21 13:40:07,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 431503 states, 431502 states have (on average 1.4094975226070794) internal successors, (608201), 431502 states have internal predecessors, (608201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:40:09,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 431503 states to 431503 states and 608201 transitions. [2023-12-21 13:40:09,090 INFO L78 Accepts]: Start accepts. Automaton has 431503 states and 608201 transitions. Word has length 93 [2023-12-21 13:40:09,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:40:09,091 INFO L495 AbstractCegarLoop]: Abstraction has 431503 states and 608201 transitions. [2023-12-21 13:40:09,091 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) [2023-12-21 13:40:09,091 INFO L276 IsEmpty]: Start isEmpty. Operand 431503 states and 608201 transitions. [2023-12-21 13:40:09,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2023-12-21 13:40:09,107 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:40:09,107 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] [2023-12-21 13:40:09,107 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2023-12-21 13:40:09,107 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 13:40:09,107 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:40:09,107 INFO L85 PathProgramCache]: Analyzing trace with hash 1038877360, now seen corresponding path program 1 times [2023-12-21 13:40:09,107 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:40:09,107 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1385604790] [2023-12-21 13:40:09,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:40:09,108 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:40:09,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:40:09,151 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:40:09,151 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:40:09,152 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1385604790] [2023-12-21 13:40:09,152 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1385604790] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:40:09,152 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:40:09,152 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 13:40:09,152 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1552013263] [2023-12-21 13:40:09,152 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:40:09,153 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 13:40:09,153 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:40:09,153 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 13:40:09,153 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 13:40:09,153 INFO L87 Difference]: Start difference. First operand 431503 states and 608201 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) [2023-12-21 13:40:13,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:40:13,268 INFO L93 Difference]: Finished difference Result 976310 states and 1376494 transitions. [2023-12-21 13:40:13,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 13:40:13,269 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 [2023-12-21 13:40:13,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:40:15,868 INFO L225 Difference]: With dead ends: 976310 [2023-12-21 13:40:15,869 INFO L226 Difference]: Without dead ends: 705411 [2023-12-21 13:40:16,288 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 [2023-12-21 13:40:16,288 INFO L413 NwaCegarLoop]: 276 mSDtfsCounter, 234 mSDsluCounter, 173 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 234 SdHoareTripleChecker+Valid, 449 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 13:40:16,288 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [234 Valid, 449 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 13:40:16,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 705411 states. [2023-12-21 13:40:26,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 705411 to 704363. [2023-12-21 13:40:26,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 704363 states, 704362 states have (on average 1.4094329336335578) internal successors, (992751), 704362 states have internal predecessors, (992751), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:40:29,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 704363 states to 704363 states and 992751 transitions. [2023-12-21 13:40:29,657 INFO L78 Accepts]: Start accepts. Automaton has 704363 states and 992751 transitions. Word has length 93 [2023-12-21 13:40:29,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:40:29,657 INFO L495 AbstractCegarLoop]: Abstraction has 704363 states and 992751 transitions. [2023-12-21 13:40:29,657 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) [2023-12-21 13:40:29,657 INFO L276 IsEmpty]: Start isEmpty. Operand 704363 states and 992751 transitions. [2023-12-21 13:40:29,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2023-12-21 13:40:29,675 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:40:29,675 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] [2023-12-21 13:40:29,675 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2023-12-21 13:40:29,675 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 13:40:29,675 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:40:29,675 INFO L85 PathProgramCache]: Analyzing trace with hash -1870848776, now seen corresponding path program 1 times [2023-12-21 13:40:29,675 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:40:29,675 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [369654959] [2023-12-21 13:40:29,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:40:29,676 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:40:29,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:40:29,705 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:40:29,705 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:40:29,705 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [369654959] [2023-12-21 13:40:29,705 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [369654959] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:40:29,705 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:40:29,705 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 13:40:29,706 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1868311787] [2023-12-21 13:40:29,706 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:40:29,706 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 13:40:29,706 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:40:29,706 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 13:40:29,706 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 13:40:29,706 INFO L87 Difference]: Start difference. First operand 704363 states and 992751 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) [2023-12-21 13:40:33,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:40:33,350 INFO L93 Difference]: Finished difference Result 947166 states and 1331051 transitions. [2023-12-21 13:40:33,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 13:40:33,351 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 [2023-12-21 13:40:33,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:40:35,126 INFO L225 Difference]: With dead ends: 947166 [2023-12-21 13:40:35,126 INFO L226 Difference]: Without dead ends: 668239 [2023-12-21 13:40:35,309 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 [2023-12-21 13:40:35,310 INFO L413 NwaCegarLoop]: 437 mSDtfsCounter, 171 mSDsluCounter, 256 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 171 SdHoareTripleChecker+Valid, 693 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 [2023-12-21 13:40:35,311 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [171 Valid, 693 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 13:40:35,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 668239 states. [2023-12-21 13:40:45,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 668239 to 668237. [2023-12-21 13:40:46,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 668237 states, 668236 states have (on average 1.3998766902711017) internal successors, (935448), 668236 states have internal predecessors, (935448), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:40:49,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 668237 states to 668237 states and 935448 transitions. [2023-12-21 13:40:49,002 INFO L78 Accepts]: Start accepts. Automaton has 668237 states and 935448 transitions. Word has length 95 [2023-12-21 13:40:49,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:40:49,002 INFO L495 AbstractCegarLoop]: Abstraction has 668237 states and 935448 transitions. [2023-12-21 13:40:49,002 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) [2023-12-21 13:40:49,002 INFO L276 IsEmpty]: Start isEmpty. Operand 668237 states and 935448 transitions. [2023-12-21 13:40:49,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-12-21 13:40:49,022 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:40:49,022 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] [2023-12-21 13:40:49,022 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2023-12-21 13:40:49,022 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 13:40:49,022 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:40:49,022 INFO L85 PathProgramCache]: Analyzing trace with hash -544066226, now seen corresponding path program 1 times [2023-12-21 13:40:49,022 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:40:49,023 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1040390198] [2023-12-21 13:40:49,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:40:49,023 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:40:49,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:40:49,370 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:40:49,371 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:40:49,371 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1040390198] [2023-12-21 13:40:49,371 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1040390198] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:40:49,371 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:40:49,371 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2023-12-21 13:40:49,371 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [12493326] [2023-12-21 13:40:49,371 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:40:49,371 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-12-21 13:40:49,371 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:40:49,372 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-12-21 13:40:49,372 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2023-12-21 13:40:49,372 INFO L87 Difference]: Start difference. First operand 668237 states and 935448 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) [2023-12-21 13:41:10,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:41:10,522 INFO L93 Difference]: Finished difference Result 4144643 states and 5752203 transitions. [2023-12-21 13:41:10,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2023-12-21 13:41:10,523 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 [2023-12-21 13:41:10,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:41:21,223 INFO L225 Difference]: With dead ends: 4144643 [2023-12-21 13:41:21,223 INFO L226 Difference]: Without dead ends: 3886731 [2023-12-21 13:41:23,259 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 913 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=687, Invalid=2505, Unknown=0, NotChecked=0, Total=3192 [2023-12-21 13:41:23,259 INFO L413 NwaCegarLoop]: 757 mSDtfsCounter, 6105 mSDsluCounter, 7984 mSDsCounter, 0 mSdLazyCounter, 1106 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6105 SdHoareTripleChecker+Valid, 8741 SdHoareTripleChecker+Invalid, 1137 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 1106 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-12-21 13:41:23,262 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6105 Valid, 8741 Invalid, 1137 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 1106 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-12-21 13:41:28,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3886731 states.