/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/pals_floodmax.5.1.ufo.UNBOUNDED.pals.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-16 06:01:56,821 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-16 06:01:56,922 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-12-16 06:01:56,926 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-16 06:01:56,926 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-16 06:01:56,955 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-16 06:01:56,957 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-16 06:01:56,957 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-16 06:01:56,958 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-16 06:01:56,962 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-16 06:01:56,962 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-16 06:01:56,963 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-16 06:01:56,963 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-16 06:01:56,964 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-16 06:01:56,965 INFO L153 SettingsManager]: * Use SBE=true [2023-12-16 06:01:56,965 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-16 06:01:56,965 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-16 06:01:56,965 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-16 06:01:56,966 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-16 06:01:56,966 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-16 06:01:56,966 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-16 06:01:56,966 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-16 06:01:56,967 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-16 06:01:56,967 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-16 06:01:56,967 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-16 06:01:56,967 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-16 06:01:56,967 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-16 06:01:56,968 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-16 06:01:56,968 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-16 06:01:56,969 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-16 06:01:56,969 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-16 06:01:56,970 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-16 06:01:56,970 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 06:01:56,970 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-16 06:01:56,970 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-16 06:01:56,970 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-16 06:01:56,971 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-16 06:01:56,971 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-16 06:01:56,971 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-16 06:01:56,971 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-16 06:01:56,971 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-16 06:01:56,972 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-16 06:01:56,972 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-16 06:01:56,972 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> false [2023-12-16 06:01:57,231 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-16 06:01:57,254 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-16 06:01:57,257 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-16 06:01:57,258 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-16 06:01:57,259 INFO L274 PluginConnector]: CDTParser initialized [2023-12-16 06:01:57,260 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded/pals_floodmax.5.1.ufo.UNBOUNDED.pals.c [2023-12-16 06:01:58,369 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-16 06:01:58,657 INFO L384 CDTParser]: Found 1 translation units. [2023-12-16 06:01:58,658 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded/pals_floodmax.5.1.ufo.UNBOUNDED.pals.c [2023-12-16 06:01:58,684 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5096ead9d/5b60f1a3d58040d6a161f6bbf4a7c4ee/FLAG1f0ee62fd [2023-12-16 06:01:58,702 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5096ead9d/5b60f1a3d58040d6a161f6bbf4a7c4ee [2023-12-16 06:01:58,704 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-16 06:01:58,707 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-16 06:01:58,709 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-16 06:01:58,709 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-16 06:01:58,714 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-16 06:01:58,714 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 06:01:58" (1/1) ... [2023-12-16 06:01:58,715 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@59ae66bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:01:58, skipping insertion in model container [2023-12-16 06:01:58,716 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 06:01:58" (1/1) ... [2023-12-16 06:01:58,794 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-16 06:01:59,167 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/pals_floodmax.5.1.ufo.UNBOUNDED.pals.c[52225,52238] [2023-12-16 06:01:59,171 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 06:01:59,182 INFO L202 MainTranslator]: Completed pre-run [2023-12-16 06:01:59,267 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/pals_floodmax.5.1.ufo.UNBOUNDED.pals.c[52225,52238] [2023-12-16 06:01:59,268 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 06:01:59,287 INFO L206 MainTranslator]: Completed translation [2023-12-16 06:01:59,287 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:01:59 WrapperNode [2023-12-16 06:01:59,288 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-16 06:01:59,288 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-16 06:01:59,289 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-16 06:01:59,289 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-16 06:01:59,296 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:01:59" (1/1) ... [2023-12-16 06:01:59,320 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:01:59" (1/1) ... [2023-12-16 06:01:59,397 INFO L138 Inliner]: procedures = 25, calls = 16, calls flagged for inlining = 11, calls inlined = 11, statements flattened = 1987 [2023-12-16 06:01:59,398 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-16 06:01:59,399 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-16 06:01:59,399 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-16 06:01:59,399 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-16 06:01:59,410 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:01:59" (1/1) ... [2023-12-16 06:01:59,410 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:01:59" (1/1) ... [2023-12-16 06:01:59,417 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:01:59" (1/1) ... [2023-12-16 06:01:59,496 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]. [2023-12-16 06:01:59,496 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:01:59" (1/1) ... [2023-12-16 06:01:59,496 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:01:59" (1/1) ... [2023-12-16 06:01:59,539 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:01:59" (1/1) ... [2023-12-16 06:01:59,572 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:01:59" (1/1) ... [2023-12-16 06:01:59,580 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:01:59" (1/1) ... [2023-12-16 06:01:59,587 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:01:59" (1/1) ... [2023-12-16 06:01:59,609 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-16 06:01:59,610 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-16 06:01:59,611 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-16 06:01:59,611 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-16 06:01:59,611 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:01:59" (1/1) ... [2023-12-16 06:01:59,616 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 06:01:59,627 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 06:01:59,640 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) [2023-12-16 06:01:59,665 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 [2023-12-16 06:01:59,683 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-16 06:01:59,684 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-16 06:01:59,685 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-16 06:01:59,685 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-16 06:01:59,868 INFO L241 CfgBuilder]: Building ICFG [2023-12-16 06:01:59,870 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-16 06:02:01,225 INFO L282 CfgBuilder]: Performing block encoding [2023-12-16 06:02:01,304 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-16 06:02:01,305 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-16 06:02:01,305 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 06:02:01 BoogieIcfgContainer [2023-12-16 06:02:01,306 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-16 06:02:01,308 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-16 06:02:01,308 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-16 06:02:01,311 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-16 06:02:01,312 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 06:01:58" (1/3) ... [2023-12-16 06:02:01,313 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28e88e39 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 06:02:01, skipping insertion in model container [2023-12-16 06:02:01,313 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:01:59" (2/3) ... [2023-12-16 06:02:01,313 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28e88e39 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 06:02:01, skipping insertion in model container [2023-12-16 06:02:01,313 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 06:02:01" (3/3) ... [2023-12-16 06:02:01,314 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_floodmax.5.1.ufo.UNBOUNDED.pals.c [2023-12-16 06:02:01,330 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-16 06:02:01,331 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-16 06:02:01,398 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-16 06:02:01,405 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;@2a8ea14a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-16 06:02:01,405 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-16 06:02:01,414 INFO L276 IsEmpty]: Start isEmpty. Operand has 651 states, 649 states have (on average 1.8690292758089369) internal successors, (1213), 650 states have internal predecessors, (1213), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:02:01,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2023-12-16 06:02:01,433 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:02:01,434 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 06:02:01,434 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 06:02:01,439 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:02:01,439 INFO L85 PathProgramCache]: Analyzing trace with hash -1371218852, now seen corresponding path program 1 times [2023-12-16 06:02:01,446 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:02:01,447 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [536006204] [2023-12-16 06:02:01,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:02:01,448 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:02:01,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:02:01,951 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 06:02:01,952 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:02:01,952 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [536006204] [2023-12-16 06:02:01,952 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [536006204] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:02:01,952 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:02:01,953 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 06:02:01,954 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [359548438] [2023-12-16 06:02:01,955 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:02:01,960 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-16 06:02:01,961 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:02:01,996 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-16 06:02:01,997 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-16 06:02:02,000 INFO L87 Difference]: Start difference. First operand has 651 states, 649 states have (on average 1.8690292758089369) internal successors, (1213), 650 states have internal predecessors, (1213), 0 states have call successors, (0), 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 2 states, 2 states have (on average 75.0) internal successors, (150), 2 states have internal predecessors, (150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:02:02,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:02:02,113 INFO L93 Difference]: Finished difference Result 777 states and 1441 transitions. [2023-12-16 06:02:02,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-16 06:02:02,116 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 75.0) internal successors, (150), 2 states have internal predecessors, (150), 0 states have call successors, (0), 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 150 [2023-12-16 06:02:02,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:02:02,131 INFO L225 Difference]: With dead ends: 777 [2023-12-16 06:02:02,131 INFO L226 Difference]: Without dead ends: 649 [2023-12-16 06:02:02,135 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-16 06:02:02,138 INFO L413 NwaCegarLoop]: 1205 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1205 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 06:02:02,139 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1205 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 06:02:02,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 649 states. [2023-12-16 06:02:02,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 649 to 649. [2023-12-16 06:02:02,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 649 states, 648 states have (on average 1.8641975308641976) internal successors, (1208), 648 states have internal predecessors, (1208), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:02:02,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 649 states to 649 states and 1208 transitions. [2023-12-16 06:02:02,214 INFO L78 Accepts]: Start accepts. Automaton has 649 states and 1208 transitions. Word has length 150 [2023-12-16 06:02:02,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:02:02,217 INFO L495 AbstractCegarLoop]: Abstraction has 649 states and 1208 transitions. [2023-12-16 06:02:02,217 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 75.0) internal successors, (150), 2 states have internal predecessors, (150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:02:02,217 INFO L276 IsEmpty]: Start isEmpty. Operand 649 states and 1208 transitions. [2023-12-16 06:02:02,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2023-12-16 06:02:02,222 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:02:02,222 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 06:02:02,223 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-16 06:02:02,223 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 06:02:02,223 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:02:02,224 INFO L85 PathProgramCache]: Analyzing trace with hash 552009182, now seen corresponding path program 1 times [2023-12-16 06:02:02,224 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:02:02,224 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1902326251] [2023-12-16 06:02:02,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:02:02,225 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:02:02,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:02:02,625 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 06:02:02,625 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:02:02,626 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1902326251] [2023-12-16 06:02:02,626 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1902326251] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:02:02,626 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:02:02,627 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 06:02:02,627 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1054494476] [2023-12-16 06:02:02,627 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:02:02,629 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 06:02:02,633 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:02:02,634 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 06:02:02,635 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 06:02:02,635 INFO L87 Difference]: Start difference. First operand 649 states and 1208 transitions. Second operand has 4 states, 4 states have (on average 37.5) internal successors, (150), 4 states have internal predecessors, (150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:02:02,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:02:02,746 INFO L93 Difference]: Finished difference Result 777 states and 1435 transitions. [2023-12-16 06:02:02,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 06:02:02,746 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 37.5) internal successors, (150), 4 states have internal predecessors, (150), 0 states have call successors, (0), 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 150 [2023-12-16 06:02:02,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:02:02,750 INFO L225 Difference]: With dead ends: 777 [2023-12-16 06:02:02,750 INFO L226 Difference]: Without dead ends: 649 [2023-12-16 06:02:02,751 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 [2023-12-16 06:02:02,752 INFO L413 NwaCegarLoop]: 1205 mSDtfsCounter, 0 mSDsluCounter, 2367 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 3572 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 06:02:02,753 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 3572 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 06:02:02,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 649 states. [2023-12-16 06:02:02,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 649 to 649. [2023-12-16 06:02:02,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 649 states, 648 states have (on average 1.8024691358024691) internal successors, (1168), 648 states have internal predecessors, (1168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:02:02,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 649 states to 649 states and 1168 transitions. [2023-12-16 06:02:02,798 INFO L78 Accepts]: Start accepts. Automaton has 649 states and 1168 transitions. Word has length 150 [2023-12-16 06:02:02,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:02:02,799 INFO L495 AbstractCegarLoop]: Abstraction has 649 states and 1168 transitions. [2023-12-16 06:02:02,799 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 37.5) internal successors, (150), 4 states have internal predecessors, (150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:02:02,799 INFO L276 IsEmpty]: Start isEmpty. Operand 649 states and 1168 transitions. [2023-12-16 06:02:02,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2023-12-16 06:02:02,807 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:02:02,808 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 06:02:02,808 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-16 06:02:02,808 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 06:02:02,808 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:02:02,809 INFO L85 PathProgramCache]: Analyzing trace with hash 125967249, now seen corresponding path program 1 times [2023-12-16 06:02:02,809 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:02:02,809 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [553583178] [2023-12-16 06:02:02,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:02:02,809 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:02:02,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:02:02,988 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 06:02:02,988 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:02:02,989 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [553583178] [2023-12-16 06:02:02,989 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [553583178] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:02:02,989 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:02:02,989 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 06:02:02,990 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1196215971] [2023-12-16 06:02:02,990 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:02:02,991 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 06:02:02,991 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:02:02,993 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 06:02:02,995 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 06:02:02,995 INFO L87 Difference]: Start difference. First operand 649 states and 1168 transitions. Second operand has 3 states, 3 states have (on average 63.0) internal successors, (189), 3 states have internal predecessors, (189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:02:03,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:02:03,061 INFO L93 Difference]: Finished difference Result 886 states and 1591 transitions. [2023-12-16 06:02:03,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 06:02:03,061 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 63.0) internal successors, (189), 3 states have internal predecessors, (189), 0 states have call successors, (0), 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 189 [2023-12-16 06:02:03,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:02:03,068 INFO L225 Difference]: With dead ends: 886 [2023-12-16 06:02:03,068 INFO L226 Difference]: Without dead ends: 761 [2023-12-16 06:02:03,071 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 [2023-12-16 06:02:03,073 INFO L413 NwaCegarLoop]: 1159 mSDtfsCounter, 190 mSDsluCounter, 1123 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 190 SdHoareTripleChecker+Valid, 2282 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 06:02:03,074 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [190 Valid, 2282 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 06:02:03,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 761 states. [2023-12-16 06:02:03,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 761 to 758. [2023-12-16 06:02:03,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 758 states, 757 states have (on average 1.7952443857331573) internal successors, (1359), 757 states have internal predecessors, (1359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:02:03,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 758 states to 758 states and 1359 transitions. [2023-12-16 06:02:03,103 INFO L78 Accepts]: Start accepts. Automaton has 758 states and 1359 transitions. Word has length 189 [2023-12-16 06:02:03,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:02:03,107 INFO L495 AbstractCegarLoop]: Abstraction has 758 states and 1359 transitions. [2023-12-16 06:02:03,107 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 63.0) internal successors, (189), 3 states have internal predecessors, (189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:02:03,111 INFO L276 IsEmpty]: Start isEmpty. Operand 758 states and 1359 transitions. [2023-12-16 06:02:03,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2023-12-16 06:02:03,114 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:02:03,114 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 06:02:03,115 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-16 06:02:03,115 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 06:02:03,115 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:02:03,115 INFO L85 PathProgramCache]: Analyzing trace with hash -386780539, now seen corresponding path program 1 times [2023-12-16 06:02:03,116 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:02:03,116 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [469900655] [2023-12-16 06:02:03,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:02:03,116 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:02:03,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:02:03,300 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 06:02:03,300 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:02:03,300 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [469900655] [2023-12-16 06:02:03,300 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [469900655] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:02:03,301 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:02:03,301 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 06:02:03,301 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [592472093] [2023-12-16 06:02:03,301 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:02:03,302 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 06:02:03,302 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:02:03,302 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 06:02:03,302 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 06:02:03,303 INFO L87 Difference]: Start difference. First operand 758 states and 1359 transitions. Second operand has 3 states, 3 states have (on average 64.33333333333333) internal successors, (193), 3 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:02:03,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:02:03,351 INFO L93 Difference]: Finished difference Result 1204 states and 2147 transitions. [2023-12-16 06:02:03,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 06:02:03,351 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 64.33333333333333) internal successors, (193), 3 states have internal predecessors, (193), 0 states have call successors, (0), 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 193 [2023-12-16 06:02:03,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:02:03,356 INFO L225 Difference]: With dead ends: 1204 [2023-12-16 06:02:03,357 INFO L226 Difference]: Without dead ends: 970 [2023-12-16 06:02:03,360 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 [2023-12-16 06:02:03,365 INFO L413 NwaCegarLoop]: 1162 mSDtfsCounter, 190 mSDsluCounter, 1132 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 190 SdHoareTripleChecker+Valid, 2294 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 06:02:03,366 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [190 Valid, 2294 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 06:02:03,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 970 states. [2023-12-16 06:02:03,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 970 to 966. [2023-12-16 06:02:03,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 966 states, 965 states have (on average 1.7875647668393781) internal successors, (1725), 965 states have internal predecessors, (1725), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:02:03,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 966 states to 966 states and 1725 transitions. [2023-12-16 06:02:03,398 INFO L78 Accepts]: Start accepts. Automaton has 966 states and 1725 transitions. Word has length 193 [2023-12-16 06:02:03,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:02:03,399 INFO L495 AbstractCegarLoop]: Abstraction has 966 states and 1725 transitions. [2023-12-16 06:02:03,400 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 64.33333333333333) internal successors, (193), 3 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:02:03,400 INFO L276 IsEmpty]: Start isEmpty. Operand 966 states and 1725 transitions. [2023-12-16 06:02:03,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2023-12-16 06:02:03,403 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:02:03,403 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 06:02:03,403 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-16 06:02:03,404 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 06:02:03,404 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:02:03,404 INFO L85 PathProgramCache]: Analyzing trace with hash -1309767497, now seen corresponding path program 1 times [2023-12-16 06:02:03,404 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:02:03,404 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1399122063] [2023-12-16 06:02:03,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:02:03,405 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:02:03,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:02:03,608 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 06:02:03,609 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:02:03,609 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1399122063] [2023-12-16 06:02:03,609 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1399122063] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:02:03,609 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:02:03,609 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 06:02:03,609 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [968498714] [2023-12-16 06:02:03,611 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:02:03,611 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 06:02:03,612 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:02:03,612 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 06:02:03,612 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 06:02:03,613 INFO L87 Difference]: Start difference. First operand 966 states and 1725 transitions. Second operand has 3 states, 3 states have (on average 65.66666666666667) internal successors, (197), 3 states have internal predecessors, (197), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:02:03,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:02:03,665 INFO L93 Difference]: Finished difference Result 1806 states and 3203 transitions. [2023-12-16 06:02:03,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 06:02:03,665 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 65.66666666666667) internal successors, (197), 3 states have internal predecessors, (197), 0 states have call successors, (0), 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 197 [2023-12-16 06:02:03,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:02:03,672 INFO L225 Difference]: With dead ends: 1806 [2023-12-16 06:02:03,672 INFO L226 Difference]: Without dead ends: 1364 [2023-12-16 06:02:03,673 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 [2023-12-16 06:02:03,674 INFO L413 NwaCegarLoop]: 1162 mSDtfsCounter, 182 mSDsluCounter, 1133 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 182 SdHoareTripleChecker+Valid, 2295 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 06:02:03,674 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [182 Valid, 2295 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 06:02:03,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1364 states. [2023-12-16 06:02:03,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1364 to 1358. [2023-12-16 06:02:03,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1358 states, 1357 states have (on average 1.7752394988946205) internal successors, (2409), 1357 states have internal predecessors, (2409), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:02:03,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1358 states to 1358 states and 2409 transitions. [2023-12-16 06:02:03,716 INFO L78 Accepts]: Start accepts. Automaton has 1358 states and 2409 transitions. Word has length 197 [2023-12-16 06:02:03,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:02:03,717 INFO L495 AbstractCegarLoop]: Abstraction has 1358 states and 2409 transitions. [2023-12-16 06:02:03,717 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 65.66666666666667) internal successors, (197), 3 states have internal predecessors, (197), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:02:03,717 INFO L276 IsEmpty]: Start isEmpty. Operand 1358 states and 2409 transitions. [2023-12-16 06:02:03,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2023-12-16 06:02:03,721 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:02:03,721 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 06:02:03,721 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-16 06:02:03,722 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 06:02:03,723 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:02:03,723 INFO L85 PathProgramCache]: Analyzing trace with hash 1485577575, now seen corresponding path program 1 times [2023-12-16 06:02:03,723 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:02:03,723 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [779742759] [2023-12-16 06:02:03,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:02:03,724 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:02:03,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:02:03,947 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 06:02:03,947 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:02:03,947 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [779742759] [2023-12-16 06:02:03,947 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [779742759] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:02:03,947 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:02:03,947 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 06:02:03,948 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [925184442] [2023-12-16 06:02:03,948 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:02:03,948 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 06:02:03,948 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:02:03,949 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 06:02:03,949 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 06:02:03,949 INFO L87 Difference]: Start difference. First operand 1358 states and 2409 transitions. Second operand has 3 states, 3 states have (on average 67.0) internal successors, (201), 3 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:02:04,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:02:04,002 INFO L93 Difference]: Finished difference Result 2938 states and 5171 transitions. [2023-12-16 06:02:04,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 06:02:04,003 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 67.0) internal successors, (201), 3 states have internal predecessors, (201), 0 states have call successors, (0), 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 201 [2023-12-16 06:02:04,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:02:04,011 INFO L225 Difference]: With dead ends: 2938 [2023-12-16 06:02:04,011 INFO L226 Difference]: Without dead ends: 2104 [2023-12-16 06:02:04,013 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 [2023-12-16 06:02:04,013 INFO L413 NwaCegarLoop]: 1162 mSDtfsCounter, 174 mSDsluCounter, 1134 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 174 SdHoareTripleChecker+Valid, 2296 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 06:02:04,014 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [174 Valid, 2296 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 06:02:04,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2104 states. [2023-12-16 06:02:04,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2104 to 2094. [2023-12-16 06:02:04,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2094 states, 2093 states have (on average 1.758719541328237) internal successors, (3681), 2093 states have internal predecessors, (3681), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:02:04,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2094 states to 2094 states and 3681 transitions. [2023-12-16 06:02:04,078 INFO L78 Accepts]: Start accepts. Automaton has 2094 states and 3681 transitions. Word has length 201 [2023-12-16 06:02:04,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:02:04,079 INFO L495 AbstractCegarLoop]: Abstraction has 2094 states and 3681 transitions. [2023-12-16 06:02:04,079 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 67.0) internal successors, (201), 3 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:02:04,079 INFO L276 IsEmpty]: Start isEmpty. Operand 2094 states and 3681 transitions. [2023-12-16 06:02:04,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2023-12-16 06:02:04,082 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:02:04,082 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 06:02:04,082 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-12-16 06:02:04,083 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 06:02:04,083 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:02:04,083 INFO L85 PathProgramCache]: Analyzing trace with hash -893825125, now seen corresponding path program 1 times [2023-12-16 06:02:04,083 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:02:04,083 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1423319577] [2023-12-16 06:02:04,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:02:04,084 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:02:04,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:02:04,277 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 06:02:04,278 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:02:04,278 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1423319577] [2023-12-16 06:02:04,278 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1423319577] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:02:04,278 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:02:04,278 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 06:02:04,278 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1497421600] [2023-12-16 06:02:04,278 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:02:04,279 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 06:02:04,279 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:02:04,279 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 06:02:04,280 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 06:02:04,280 INFO L87 Difference]: Start difference. First operand 2094 states and 3681 transitions. Second operand has 3 states, 3 states have (on average 68.33333333333333) internal successors, (205), 3 states have internal predecessors, (205), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:02:04,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:02:04,342 INFO L93 Difference]: Finished difference Result 5058 states and 8819 transitions. [2023-12-16 06:02:04,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 06:02:04,343 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 68.33333333333333) internal successors, (205), 3 states have internal predecessors, (205), 0 states have call successors, (0), 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 205 [2023-12-16 06:02:04,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:02:04,356 INFO L225 Difference]: With dead ends: 5058 [2023-12-16 06:02:04,357 INFO L226 Difference]: Without dead ends: 3488 [2023-12-16 06:02:04,361 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 [2023-12-16 06:02:04,362 INFO L413 NwaCegarLoop]: 1162 mSDtfsCounter, 166 mSDsluCounter, 1135 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 166 SdHoareTripleChecker+Valid, 2297 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 06:02:04,363 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [166 Valid, 2297 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 06:02:04,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3488 states. [2023-12-16 06:02:04,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3488 to 3470. [2023-12-16 06:02:04,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3470 states, 3469 states have (on average 1.7391179014125109) internal successors, (6033), 3469 states have internal predecessors, (6033), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:02:04,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3470 states to 3470 states and 6033 transitions. [2023-12-16 06:02:04,495 INFO L78 Accepts]: Start accepts. Automaton has 3470 states and 6033 transitions. Word has length 205 [2023-12-16 06:02:04,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:02:04,495 INFO L495 AbstractCegarLoop]: Abstraction has 3470 states and 6033 transitions. [2023-12-16 06:02:04,496 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 68.33333333333333) internal successors, (205), 3 states have internal predecessors, (205), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:02:04,496 INFO L276 IsEmpty]: Start isEmpty. Operand 3470 states and 6033 transitions. [2023-12-16 06:02:04,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2023-12-16 06:02:04,500 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:02:04,500 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 06:02:04,500 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-12-16 06:02:04,500 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 06:02:04,501 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:02:04,501 INFO L85 PathProgramCache]: Analyzing trace with hash 1073310735, now seen corresponding path program 1 times [2023-12-16 06:02:04,501 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:02:04,501 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [70465460] [2023-12-16 06:02:04,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:02:04,501 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:02:04,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:02:04,824 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 06:02:04,824 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:02:04,825 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [70465460] [2023-12-16 06:02:04,825 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [70465460] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:02:04,825 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:02:04,825 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 06:02:04,825 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [100649323] [2023-12-16 06:02:04,825 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:02:04,826 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 06:02:04,826 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:02:04,826 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 06:02:04,826 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-16 06:02:04,827 INFO L87 Difference]: Start difference. First operand 3470 states and 6033 transitions. Second operand has 7 states, 7 states have (on average 29.857142857142858) internal successors, (209), 7 states have internal predecessors, (209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:02:05,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:02:05,405 INFO L93 Difference]: Finished difference Result 20450 states and 35723 transitions. [2023-12-16 06:02:05,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-16 06:02:05,405 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 29.857142857142858) internal successors, (209), 7 states have internal predecessors, (209), 0 states have call successors, (0), 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 209 [2023-12-16 06:02:05,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:02:05,478 INFO L225 Difference]: With dead ends: 20450 [2023-12-16 06:02:05,478 INFO L226 Difference]: Without dead ends: 17504 [2023-12-16 06:02:05,487 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2023-12-16 06:02:05,488 INFO L413 NwaCegarLoop]: 1167 mSDtfsCounter, 2463 mSDsluCounter, 8681 mSDsCounter, 0 mSdLazyCounter, 326 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2463 SdHoareTripleChecker+Valid, 9848 SdHoareTripleChecker+Invalid, 329 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 326 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 06:02:05,489 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2463 Valid, 9848 Invalid, 329 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 326 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 06:02:05,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17504 states. [2023-12-16 06:02:05,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17504 to 6293. [2023-12-16 06:02:05,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6293 states, 6292 states have (on average 1.7328353464717101) internal successors, (10903), 6292 states have internal predecessors, (10903), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:02:05,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6293 states to 6293 states and 10903 transitions. [2023-12-16 06:02:05,813 INFO L78 Accepts]: Start accepts. Automaton has 6293 states and 10903 transitions. Word has length 209 [2023-12-16 06:02:05,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:02:05,813 INFO L495 AbstractCegarLoop]: Abstraction has 6293 states and 10903 transitions. [2023-12-16 06:02:05,814 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 29.857142857142858) internal successors, (209), 7 states have internal predecessors, (209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:02:05,814 INFO L276 IsEmpty]: Start isEmpty. Operand 6293 states and 10903 transitions. [2023-12-16 06:02:05,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2023-12-16 06:02:05,820 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:02:05,820 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 06:02:05,820 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-12-16 06:02:05,820 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 06:02:05,821 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:02:05,821 INFO L85 PathProgramCache]: Analyzing trace with hash -1160848417, now seen corresponding path program 1 times [2023-12-16 06:02:05,821 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:02:05,821 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [626717579] [2023-12-16 06:02:05,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:02:05,821 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:02:05,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:02:06,043 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 06:02:06,043 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:02:06,043 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [626717579] [2023-12-16 06:02:06,043 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [626717579] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:02:06,043 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:02:06,044 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 06:02:06,044 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1210670669] [2023-12-16 06:02:06,044 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:02:06,045 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 06:02:06,045 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:02:06,045 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 06:02:06,046 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 06:02:06,046 INFO L87 Difference]: Start difference. First operand 6293 states and 10903 transitions. Second operand has 4 states, 4 states have (on average 52.5) internal successors, (210), 4 states have internal predecessors, (210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:02:06,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:02:06,274 INFO L93 Difference]: Finished difference Result 18252 states and 31746 transitions. [2023-12-16 06:02:06,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 06:02:06,275 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 52.5) internal successors, (210), 4 states have internal predecessors, (210), 0 states have call successors, (0), 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 210 [2023-12-16 06:02:06,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:02:06,305 INFO L225 Difference]: With dead ends: 18252 [2023-12-16 06:02:06,305 INFO L226 Difference]: Without dead ends: 12483 [2023-12-16 06:02:06,317 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 06:02:06,318 INFO L413 NwaCegarLoop]: 1158 mSDtfsCounter, 637 mSDsluCounter, 2486 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 637 SdHoareTripleChecker+Valid, 3644 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 06:02:06,318 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [637 Valid, 3644 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 06:02:06,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12483 states. [2023-12-16 06:02:06,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12483 to 9355. [2023-12-16 06:02:06,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9355 states, 9354 states have (on average 1.7340175326063716) internal successors, (16220), 9354 states have internal predecessors, (16220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:02:06,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9355 states to 9355 states and 16220 transitions. [2023-12-16 06:02:06,583 INFO L78 Accepts]: Start accepts. Automaton has 9355 states and 16220 transitions. Word has length 210 [2023-12-16 06:02:06,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:02:06,583 INFO L495 AbstractCegarLoop]: Abstraction has 9355 states and 16220 transitions. [2023-12-16 06:02:06,584 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 52.5) internal successors, (210), 4 states have internal predecessors, (210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:02:06,584 INFO L276 IsEmpty]: Start isEmpty. Operand 9355 states and 16220 transitions. [2023-12-16 06:02:06,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2023-12-16 06:02:06,591 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:02:06,591 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 06:02:06,591 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-12-16 06:02:06,592 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 06:02:06,592 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:02:06,592 INFO L85 PathProgramCache]: Analyzing trace with hash -1694853640, now seen corresponding path program 1 times [2023-12-16 06:02:06,592 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:02:06,592 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [727164763] [2023-12-16 06:02:06,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:02:06,593 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:02:06,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:02:06,834 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 06:02:06,834 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:02:06,834 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [727164763] [2023-12-16 06:02:06,834 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [727164763] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:02:06,834 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:02:06,835 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 06:02:06,835 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1762413438] [2023-12-16 06:02:06,835 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:02:06,835 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 06:02:06,835 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:02:06,836 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 06:02:06,836 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 06:02:06,836 INFO L87 Difference]: Start difference. First operand 9355 states and 16220 transitions. Second operand has 4 states, 4 states have (on average 52.75) internal successors, (211), 4 states have internal predecessors, (211), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:02:07,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:02:07,077 INFO L93 Difference]: Finished difference Result 27416 states and 47616 transitions. [2023-12-16 06:02:07,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 06:02:07,078 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 52.75) internal successors, (211), 4 states have internal predecessors, (211), 0 states have call successors, (0), 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 211 [2023-12-16 06:02:07,078 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:02:07,122 INFO L225 Difference]: With dead ends: 27416 [2023-12-16 06:02:07,122 INFO L226 Difference]: Without dead ends: 18585 [2023-12-16 06:02:07,144 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 06:02:07,144 INFO L413 NwaCegarLoop]: 1162 mSDtfsCounter, 635 mSDsluCounter, 2488 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 635 SdHoareTripleChecker+Valid, 3650 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 06:02:07,146 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [635 Valid, 3650 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 06:02:07,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18585 states. [2023-12-16 06:02:07,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18585 to 13922. [2023-12-16 06:02:07,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13922 states, 13921 states have (on average 1.7308383018461317) internal successors, (24095), 13921 states have internal predecessors, (24095), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:02:07,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13922 states to 13922 states and 24095 transitions. [2023-12-16 06:02:07,657 INFO L78 Accepts]: Start accepts. Automaton has 13922 states and 24095 transitions. Word has length 211 [2023-12-16 06:02:07,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:02:07,657 INFO L495 AbstractCegarLoop]: Abstraction has 13922 states and 24095 transitions. [2023-12-16 06:02:07,658 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 52.75) internal successors, (211), 4 states have internal predecessors, (211), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:02:07,658 INFO L276 IsEmpty]: Start isEmpty. Operand 13922 states and 24095 transitions. [2023-12-16 06:02:07,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2023-12-16 06:02:07,666 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:02:07,666 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 06:02:07,667 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-12-16 06:02:07,667 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 06:02:07,667 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:02:07,668 INFO L85 PathProgramCache]: Analyzing trace with hash 574530318, now seen corresponding path program 1 times [2023-12-16 06:02:07,668 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:02:07,668 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [18287632] [2023-12-16 06:02:07,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:02:07,668 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:02:07,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:02:07,819 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 06:02:07,820 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:02:07,820 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [18287632] [2023-12-16 06:02:07,820 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [18287632] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:02:07,820 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:02:07,820 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 06:02:07,820 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1442651412] [2023-12-16 06:02:07,820 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:02:07,821 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 06:02:07,821 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:02:07,821 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 06:02:07,822 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 06:02:07,822 INFO L87 Difference]: Start difference. First operand 13922 states and 24095 transitions. Second operand has 3 states, 3 states have (on average 70.66666666666667) internal successors, (212), 3 states have internal predecessors, (212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:02:08,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:02:08,059 INFO L93 Difference]: Finished difference Result 31103 states and 53999 transitions. [2023-12-16 06:02:08,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 06:02:08,060 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 70.66666666666667) internal successors, (212), 3 states have internal predecessors, (212), 0 states have call successors, (0), 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 212 [2023-12-16 06:02:08,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:02:08,109 INFO L225 Difference]: With dead ends: 31103 [2023-12-16 06:02:08,109 INFO L226 Difference]: Without dead ends: 21643 [2023-12-16 06:02:08,129 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 [2023-12-16 06:02:08,130 INFO L413 NwaCegarLoop]: 1340 mSDtfsCounter, 197 mSDsluCounter, 1144 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 197 SdHoareTripleChecker+Valid, 2484 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 06:02:08,130 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [197 Valid, 2484 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 06:02:08,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21643 states. [2023-12-16 06:02:08,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21643 to 21641. [2023-12-16 06:02:08,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21641 states, 21640 states have (on average 1.7261090573012938) internal successors, (37353), 21640 states have internal predecessors, (37353), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:02:08,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21641 states to 21641 states and 37353 transitions. [2023-12-16 06:02:08,750 INFO L78 Accepts]: Start accepts. Automaton has 21641 states and 37353 transitions. Word has length 212 [2023-12-16 06:02:08,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:02:08,750 INFO L495 AbstractCegarLoop]: Abstraction has 21641 states and 37353 transitions. [2023-12-16 06:02:08,750 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 70.66666666666667) internal successors, (212), 3 states have internal predecessors, (212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:02:08,750 INFO L276 IsEmpty]: Start isEmpty. Operand 21641 states and 37353 transitions. [2023-12-16 06:02:08,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2023-12-16 06:02:08,755 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:02:08,755 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 06:02:08,755 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-12-16 06:02:08,755 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 06:02:08,756 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:02:08,756 INFO L85 PathProgramCache]: Analyzing trace with hash 1298558044, now seen corresponding path program 1 times [2023-12-16 06:02:08,756 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:02:08,756 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1891722706] [2023-12-16 06:02:08,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:02:08,756 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:02:08,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:02:08,887 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 06:02:08,887 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:02:08,887 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1891722706] [2023-12-16 06:02:08,888 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1891722706] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:02:08,888 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:02:08,888 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 06:02:08,888 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1306828779] [2023-12-16 06:02:08,888 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:02:08,889 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 06:02:08,889 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:02:08,889 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 06:02:08,889 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 06:02:08,890 INFO L87 Difference]: Start difference. First operand 21641 states and 37353 transitions. Second operand has 3 states, 3 states have (on average 70.66666666666667) internal successors, (212), 3 states have internal predecessors, (212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:02:09,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:02:09,367 INFO L93 Difference]: Finished difference Result 42366 states and 73171 transitions. [2023-12-16 06:02:09,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 06:02:09,367 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 70.66666666666667) internal successors, (212), 3 states have internal predecessors, (212), 0 states have call successors, (0), 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 212 [2023-12-16 06:02:09,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:02:09,454 INFO L225 Difference]: With dead ends: 42366 [2023-12-16 06:02:09,454 INFO L226 Difference]: Without dead ends: 30880 [2023-12-16 06:02:09,477 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 [2023-12-16 06:02:09,479 INFO L413 NwaCegarLoop]: 1301 mSDtfsCounter, 181 mSDsluCounter, 1146 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 181 SdHoareTripleChecker+Valid, 2447 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 06:02:09,479 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [181 Valid, 2447 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 06:02:09,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30880 states. [2023-12-16 06:02:10,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30880 to 30878. [2023-12-16 06:02:10,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30878 states, 30877 states have (on average 1.7185931275706836) internal successors, (53065), 30877 states have internal predecessors, (53065), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:02:10,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30878 states to 30878 states and 53065 transitions. [2023-12-16 06:02:10,231 INFO L78 Accepts]: Start accepts. Automaton has 30878 states and 53065 transitions. Word has length 212 [2023-12-16 06:02:10,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:02:10,232 INFO L495 AbstractCegarLoop]: Abstraction has 30878 states and 53065 transitions. [2023-12-16 06:02:10,232 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 70.66666666666667) internal successors, (212), 3 states have internal predecessors, (212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:02:10,232 INFO L276 IsEmpty]: Start isEmpty. Operand 30878 states and 53065 transitions. [2023-12-16 06:02:10,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2023-12-16 06:02:10,236 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:02:10,236 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 06:02:10,236 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-12-16 06:02:10,236 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 06:02:10,237 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:02:10,237 INFO L85 PathProgramCache]: Analyzing trace with hash 2076064323, now seen corresponding path program 1 times [2023-12-16 06:02:10,237 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:02:10,237 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [634545102] [2023-12-16 06:02:10,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:02:10,237 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:02:10,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:02:10,378 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 06:02:10,378 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:02:10,378 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [634545102] [2023-12-16 06:02:10,378 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [634545102] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:02:10,378 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:02:10,379 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 06:02:10,379 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1566396288] [2023-12-16 06:02:10,379 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:02:10,379 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 06:02:10,379 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:02:10,380 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 06:02:10,380 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 06:02:10,381 INFO L87 Difference]: Start difference. First operand 30878 states and 53065 transitions. Second operand has 3 states, 3 states have (on average 70.66666666666667) internal successors, (212), 3 states have internal predecessors, (212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:02:11,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:02:11,035 INFO L93 Difference]: Finished difference Result 60378 states and 103871 transitions. [2023-12-16 06:02:11,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 06:02:11,036 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 70.66666666666667) internal successors, (212), 3 states have internal predecessors, (212), 0 states have call successors, (0), 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 212 [2023-12-16 06:02:11,037 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:02:11,124 INFO L225 Difference]: With dead ends: 60378 [2023-12-16 06:02:11,124 INFO L226 Difference]: Without dead ends: 43932 [2023-12-16 06:02:11,148 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 [2023-12-16 06:02:11,150 INFO L413 NwaCegarLoop]: 1289 mSDtfsCounter, 173 mSDsluCounter, 1147 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 173 SdHoareTripleChecker+Valid, 2436 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 06:02:11,150 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [173 Valid, 2436 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 06:02:11,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43932 states. [2023-12-16 06:02:11,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43932 to 43930. [2023-12-16 06:02:12,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43930 states, 43929 states have (on average 1.7108743654533451) internal successors, (75157), 43929 states have internal predecessors, (75157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:02:12,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43930 states to 43930 states and 75157 transitions. [2023-12-16 06:02:12,186 INFO L78 Accepts]: Start accepts. Automaton has 43930 states and 75157 transitions. Word has length 212 [2023-12-16 06:02:12,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:02:12,186 INFO L495 AbstractCegarLoop]: Abstraction has 43930 states and 75157 transitions. [2023-12-16 06:02:12,187 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 70.66666666666667) internal successors, (212), 3 states have internal predecessors, (212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:02:12,187 INFO L276 IsEmpty]: Start isEmpty. Operand 43930 states and 75157 transitions. [2023-12-16 06:02:12,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2023-12-16 06:02:12,190 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:02:12,190 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 06:02:12,190 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-12-16 06:02:12,190 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 06:02:12,191 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:02:12,191 INFO L85 PathProgramCache]: Analyzing trace with hash -1063694616, now seen corresponding path program 1 times [2023-12-16 06:02:12,191 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:02:12,191 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [534952723] [2023-12-16 06:02:12,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:02:12,192 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:02:12,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:02:12,391 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 06:02:12,391 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:02:12,391 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [534952723] [2023-12-16 06:02:12,391 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [534952723] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:02:12,391 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:02:12,391 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 06:02:12,392 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [998221819] [2023-12-16 06:02:12,392 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:02:12,392 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 06:02:12,392 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:02:12,393 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 06:02:12,393 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 06:02:12,393 INFO L87 Difference]: Start difference. First operand 43930 states and 75157 transitions. Second operand has 4 states, 4 states have (on average 53.0) internal successors, (212), 4 states have internal predecessors, (212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:02:13,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:02:13,849 INFO L93 Difference]: Finished difference Result 144501 states and 247594 transitions. [2023-12-16 06:02:13,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 06:02:13,850 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 53.0) internal successors, (212), 4 states have internal predecessors, (212), 0 states have call successors, (0), 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 212 [2023-12-16 06:02:13,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:02:14,128 INFO L225 Difference]: With dead ends: 144501 [2023-12-16 06:02:14,129 INFO L226 Difference]: Without dead ends: 101166 [2023-12-16 06:02:14,169 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 06:02:14,169 INFO L413 NwaCegarLoop]: 1154 mSDtfsCounter, 633 mSDsluCounter, 2490 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 633 SdHoareTripleChecker+Valid, 3644 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 06:02:14,169 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [633 Valid, 3644 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 06:02:14,277 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101166 states. [2023-12-16 06:02:15,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101166 to 72372. [2023-12-16 06:02:15,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72372 states, 72371 states have (on average 1.7058075748573323) internal successors, (123451), 72371 states have internal predecessors, (123451), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:02:16,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72372 states to 72372 states and 123451 transitions. [2023-12-16 06:02:16,374 INFO L78 Accepts]: Start accepts. Automaton has 72372 states and 123451 transitions. Word has length 212 [2023-12-16 06:02:16,375 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:02:16,375 INFO L495 AbstractCegarLoop]: Abstraction has 72372 states and 123451 transitions. [2023-12-16 06:02:16,376 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 53.0) internal successors, (212), 4 states have internal predecessors, (212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:02:16,392 INFO L276 IsEmpty]: Start isEmpty. Operand 72372 states and 123451 transitions. [2023-12-16 06:02:16,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2023-12-16 06:02:16,395 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:02:16,396 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 06:02:16,396 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-12-16 06:02:16,396 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 06:02:16,397 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:02:16,397 INFO L85 PathProgramCache]: Analyzing trace with hash -481527706, now seen corresponding path program 1 times [2023-12-16 06:02:16,397 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:02:16,397 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [123137216] [2023-12-16 06:02:16,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:02:16,397 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:02:16,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:02:16,563 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 06:02:16,563 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:02:16,564 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [123137216] [2023-12-16 06:02:16,564 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [123137216] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:02:16,564 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:02:16,564 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 06:02:16,564 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [277106261] [2023-12-16 06:02:16,564 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:02:16,564 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 06:02:16,565 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:02:16,565 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 06:02:16,565 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 06:02:16,565 INFO L87 Difference]: Start difference. First operand 72372 states and 123451 transitions. Second operand has 3 states, 3 states have (on average 70.66666666666667) internal successors, (212), 3 states have internal predecessors, (212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:02:17,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:02:17,814 INFO L93 Difference]: Finished difference Result 142282 states and 242999 transitions. [2023-12-16 06:02:17,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 06:02:17,814 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 70.66666666666667) internal successors, (212), 3 states have internal predecessors, (212), 0 states have call successors, (0), 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 212 [2023-12-16 06:02:17,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:02:18,021 INFO L225 Difference]: With dead ends: 142282 [2023-12-16 06:02:18,021 INFO L226 Difference]: Without dead ends: 103066 [2023-12-16 06:02:18,080 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 [2023-12-16 06:02:18,081 INFO L413 NwaCegarLoop]: 1277 mSDtfsCounter, 165 mSDsluCounter, 1148 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 165 SdHoareTripleChecker+Valid, 2425 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 06:02:18,081 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [165 Valid, 2425 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 06:02:18,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103066 states. [2023-12-16 06:02:19,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103066 to 103064. [2023-12-16 06:02:20,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103064 states, 103063 states have (on average 1.6972046224154158) internal successors, (174919), 103063 states have internal predecessors, (174919), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:02:20,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103064 states to 103064 states and 174919 transitions. [2023-12-16 06:02:20,446 INFO L78 Accepts]: Start accepts. Automaton has 103064 states and 174919 transitions. Word has length 212 [2023-12-16 06:02:20,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:02:20,447 INFO L495 AbstractCegarLoop]: Abstraction has 103064 states and 174919 transitions. [2023-12-16 06:02:20,447 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 70.66666666666667) internal successors, (212), 3 states have internal predecessors, (212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:02:20,447 INFO L276 IsEmpty]: Start isEmpty. Operand 103064 states and 174919 transitions. [2023-12-16 06:02:20,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2023-12-16 06:02:20,451 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:02:20,451 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 06:02:20,452 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-12-16 06:02:20,452 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 06:02:20,452 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:02:20,452 INFO L85 PathProgramCache]: Analyzing trace with hash 12378163, now seen corresponding path program 1 times [2023-12-16 06:02:20,453 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:02:20,453 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [396748873] [2023-12-16 06:02:20,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:02:20,453 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:02:20,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:02:20,584 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 06:02:20,584 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:02:20,584 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [396748873] [2023-12-16 06:02:20,586 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [396748873] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:02:20,586 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:02:20,586 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 06:02:20,586 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [618621607] [2023-12-16 06:02:20,586 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:02:20,587 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 06:02:20,587 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:02:20,588 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 06:02:20,588 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 06:02:20,588 INFO L87 Difference]: Start difference. First operand 103064 states and 174919 transitions. Second operand has 3 states, 3 states have (on average 70.66666666666667) internal successors, (212), 3 states have internal predecessors, (212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:02:22,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:02:22,319 INFO L93 Difference]: Finished difference Result 230376 states and 390960 transitions. [2023-12-16 06:02:22,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 06:02:22,320 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 70.66666666666667) internal successors, (212), 3 states have internal predecessors, (212), 0 states have call successors, (0), 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 212 [2023-12-16 06:02:22,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:02:22,637 INFO L225 Difference]: With dead ends: 230376 [2023-12-16 06:02:22,638 INFO L226 Difference]: Without dead ends: 158407 [2023-12-16 06:02:22,734 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 [2023-12-16 06:02:22,735 INFO L413 NwaCegarLoop]: 1336 mSDtfsCounter, 189 mSDsluCounter, 1145 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 189 SdHoareTripleChecker+Valid, 2481 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 06:02:22,735 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [189 Valid, 2481 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 06:02:22,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158407 states. [2023-12-16 06:02:25,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158407 to 158405. [2023-12-16 06:02:25,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 158405 states, 158404 states have (on average 1.6842503977172294) internal successors, (266792), 158404 states have internal predecessors, (266792), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:02:26,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158405 states to 158405 states and 266792 transitions. [2023-12-16 06:02:26,282 INFO L78 Accepts]: Start accepts. Automaton has 158405 states and 266792 transitions. Word has length 212 [2023-12-16 06:02:26,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:02:26,282 INFO L495 AbstractCegarLoop]: Abstraction has 158405 states and 266792 transitions. [2023-12-16 06:02:26,283 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 70.66666666666667) internal successors, (212), 3 states have internal predecessors, (212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:02:26,283 INFO L276 IsEmpty]: Start isEmpty. Operand 158405 states and 266792 transitions. [2023-12-16 06:02:26,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2023-12-16 06:02:26,285 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:02:26,286 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 06:02:26,286 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-12-16 06:02:26,286 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 06:02:26,286 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:02:26,286 INFO L85 PathProgramCache]: Analyzing trace with hash 1327817697, now seen corresponding path program 1 times [2023-12-16 06:02:26,287 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:02:26,287 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1113486767] [2023-12-16 06:02:26,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:02:26,287 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:02:26,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:02:26,477 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 06:02:26,477 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:02:26,477 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1113486767] [2023-12-16 06:02:26,477 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1113486767] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:02:26,477 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:02:26,478 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 06:02:26,478 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1394246817] [2023-12-16 06:02:26,478 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:02:26,478 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 06:02:26,478 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:02:26,479 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 06:02:26,479 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 06:02:26,479 INFO L87 Difference]: Start difference. First operand 158405 states and 266792 transitions. Second operand has 4 states, 4 states have (on average 53.25) internal successors, (213), 4 states have internal predecessors, (213), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:02:30,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:02:30,133 INFO L93 Difference]: Finished difference Result 524266 states and 884732 transitions. [2023-12-16 06:02:30,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 06:02:30,133 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 53.25) internal successors, (213), 4 states have internal predecessors, (213), 0 states have call successors, (0), 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 213 [2023-12-16 06:02:30,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:02:31,231 INFO L225 Difference]: With dead ends: 524266 [2023-12-16 06:02:31,232 INFO L226 Difference]: Without dead ends: 366419 [2023-12-16 06:02:31,383 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 06:02:31,384 INFO L413 NwaCegarLoop]: 1153 mSDtfsCounter, 631 mSDsluCounter, 2438 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 631 SdHoareTripleChecker+Valid, 3591 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 06:02:31,384 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [631 Valid, 3591 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 06:02:31,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 366419 states. [2023-12-16 06:02:36,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 366419 to 261687. [2023-12-16 06:02:36,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 261687 states, 261686 states have (on average 1.6785269368632636) internal successors, (439247), 261686 states have internal predecessors, (439247), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:02:37,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261687 states to 261687 states and 439247 transitions. [2023-12-16 06:02:37,590 INFO L78 Accepts]: Start accepts. Automaton has 261687 states and 439247 transitions. Word has length 213 [2023-12-16 06:02:37,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:02:37,590 INFO L495 AbstractCegarLoop]: Abstraction has 261687 states and 439247 transitions. [2023-12-16 06:02:37,591 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 53.25) internal successors, (213), 4 states have internal predecessors, (213), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:02:37,591 INFO L276 IsEmpty]: Start isEmpty. Operand 261687 states and 439247 transitions. [2023-12-16 06:02:37,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2023-12-16 06:02:37,592 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:02:37,592 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 06:02:37,592 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-12-16 06:02:37,592 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 06:02:37,593 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:02:37,593 INFO L85 PathProgramCache]: Analyzing trace with hash -1839260175, now seen corresponding path program 1 times [2023-12-16 06:02:37,593 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:02:37,593 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [344477880] [2023-12-16 06:02:37,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:02:37,593 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:02:37,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:02:37,780 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 06:02:37,781 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:02:37,781 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [344477880] [2023-12-16 06:02:37,781 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [344477880] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:02:37,781 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:02:37,781 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 06:02:37,781 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1093056500] [2023-12-16 06:02:37,781 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:02:37,782 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 06:02:37,782 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:02:37,782 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 06:02:37,783 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 06:02:37,783 INFO L87 Difference]: Start difference. First operand 261687 states and 439247 transitions. Second operand has 4 states, 4 states have (on average 53.5) internal successors, (214), 4 states have internal predecessors, (214), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:02:44,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:02:44,103 INFO L93 Difference]: Finished difference Result 860018 states and 1446566 transitions. [2023-12-16 06:02:44,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 06:02:44,104 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 53.5) internal successors, (214), 4 states have internal predecessors, (214), 0 states have call successors, (0), 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 214 [2023-12-16 06:02:44,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:02:45,584 INFO L225 Difference]: With dead ends: 860018 [2023-12-16 06:02:45,584 INFO L226 Difference]: Without dead ends: 598889 [2023-12-16 06:02:46,222 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 06:02:46,229 INFO L413 NwaCegarLoop]: 1154 mSDtfsCounter, 629 mSDsluCounter, 2494 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 629 SdHoareTripleChecker+Valid, 3648 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 06:02:46,230 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [629 Valid, 3648 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 06:02:46,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 598889 states. Received shutdown request... [2023-12-16 06:02:48,648 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-16 06:02:48,649 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-12-16 06:02:48,649 WARN L619 AbstractCegarLoop]: Verification canceled: while executing MinimizeSevpa. [2023-12-16 06:02:48,653 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 06:02:48,655 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-16 06:02:48,657 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.12 06:02:48 BoogieIcfgContainer [2023-12-16 06:02:48,657 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-16 06:02:48,658 INFO L158 Benchmark]: Toolchain (without parser) took 49951.73ms. Allocated memory was 217.1MB in the beginning and 7.9GB in the end (delta: 7.7GB). Free memory was 168.5MB in the beginning and 4.7GB in the end (delta: -4.5GB). Peak memory consumption was 3.4GB. Max. memory is 8.0GB. [2023-12-16 06:02:48,658 INFO L158 Benchmark]: CDTParser took 0.57ms. Allocated memory is still 217.1MB. Free memory is still 174.6MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-16 06:02:48,658 INFO L158 Benchmark]: CACSL2BoogieTranslator took 578.50ms. Allocated memory is still 217.1MB. Free memory was 168.1MB in the beginning and 129.2MB in the end (delta: 38.9MB). Peak memory consumption was 38.8MB. Max. memory is 8.0GB. [2023-12-16 06:02:48,658 INFO L158 Benchmark]: Boogie Procedure Inliner took 109.67ms. Allocated memory is still 217.1MB. Free memory was 129.2MB in the beginning and 120.3MB in the end (delta: 8.9MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. [2023-12-16 06:02:48,658 INFO L158 Benchmark]: Boogie Preprocessor took 210.93ms. Allocated memory is still 217.1MB. Free memory was 120.3MB in the beginning and 179.4MB in the end (delta: -59.1MB). Peak memory consumption was 12.2MB. Max. memory is 8.0GB. [2023-12-16 06:02:48,659 INFO L158 Benchmark]: RCFGBuilder took 1695.19ms. Allocated memory was 217.1MB in the beginning and 308.3MB in the end (delta: 91.2MB). Free memory was 179.4MB in the beginning and 220.8MB in the end (delta: -41.4MB). Peak memory consumption was 93.3MB. Max. memory is 8.0GB. [2023-12-16 06:02:48,659 INFO L158 Benchmark]: TraceAbstraction took 47348.97ms. Allocated memory was 308.3MB in the beginning and 7.9GB in the end (delta: 7.6GB). Free memory was 220.3MB in the beginning and 4.7GB in the end (delta: -4.5GB). Peak memory consumption was 3.4GB. Max. memory is 8.0GB. [2023-12-16 06:02:48,660 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.57ms. Allocated memory is still 217.1MB. Free memory is still 174.6MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 578.50ms. Allocated memory is still 217.1MB. Free memory was 168.1MB in the beginning and 129.2MB in the end (delta: 38.9MB). Peak memory consumption was 38.8MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 109.67ms. Allocated memory is still 217.1MB. Free memory was 129.2MB in the beginning and 120.3MB in the end (delta: 8.9MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. * Boogie Preprocessor took 210.93ms. Allocated memory is still 217.1MB. Free memory was 120.3MB in the beginning and 179.4MB in the end (delta: -59.1MB). Peak memory consumption was 12.2MB. Max. memory is 8.0GB. * RCFGBuilder took 1695.19ms. Allocated memory was 217.1MB in the beginning and 308.3MB in the end (delta: 91.2MB). Free memory was 179.4MB in the beginning and 220.8MB in the end (delta: -41.4MB). Peak memory consumption was 93.3MB. Max. memory is 8.0GB. * TraceAbstraction took 47348.97ms. Allocated memory was 308.3MB in the beginning and 7.9GB in the end (delta: 7.6GB). Free memory was 220.3MB in the beginning and 4.7GB in the end (delta: -4.5GB). Peak memory consumption was 3.4GB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - TimeoutResultAtElement [Line: 2773]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 2773). Cancelled while executing MinimizeSevpa. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 651 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 47.3s, OverallIterations: 18, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 22.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 7435 SdHoareTripleChecker+Valid, 0.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 7435 mSDsluCounter, 56539 SdHoareTripleChecker+Invalid, 0.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 34831 mSDsCounter, 61 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 743 IncrementalHoareTripleChecker+Invalid, 804 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 61 mSolverCounterUnsat, 21708 mSDtfsCounter, 743 mSolverCounterSat, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 75 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=261687occurred in iteration=17, InterpolantAutomatonStates: 67, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 20.6s AutomataMinimizationTime, 18 MinimizatonAttempts, 152579 StatesRemovedByMinimization, 15 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 2.7s InterpolantComputationTime, 3614 NumberOfCodeBlocks, 3614 NumberOfCodeBlocksAsserted, 18 NumberOfCheckSat, 3596 ConstructedInterpolants, 0 QuantifiedInterpolants, 7162 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 18 InterpolantComputations, 18 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown