/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.use.bitabs.translation false -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_opt-floodmax.5.3.ufo.BOUNDED-10.pals.c.v+nlh-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-21 14:34:54,621 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-21 14:34:54,688 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-12-21 14:34:54,692 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-21 14:34:54,692 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-21 14:34:54,714 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-21 14:34:54,715 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-21 14:34:54,715 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-21 14:34:54,716 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-21 14:34:54,719 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-21 14:34:54,719 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-21 14:34:54,719 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-21 14:34:54,720 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-21 14:34:54,721 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-21 14:34:54,721 INFO L153 SettingsManager]: * Use SBE=true [2023-12-21 14:34:54,721 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-21 14:34:54,721 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-21 14:34:54,721 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-21 14:34:54,721 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-21 14:34:54,722 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-21 14:34:54,722 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-21 14:34:54,722 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-21 14:34:54,722 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-21 14:34:54,722 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-21 14:34:54,722 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-21 14:34:54,723 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-21 14:34:54,723 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-21 14:34:54,723 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-21 14:34:54,723 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-21 14:34:54,723 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-21 14:34:54,724 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-21 14:34:54,724 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-21 14:34:54,724 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-21 14:34:54,725 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-21 14:34:54,725 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-21 14:34:54,725 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-21 14:34:54,725 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-21 14:34:54,725 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-21 14:34:54,725 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-21 14:34:54,725 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-21 14:34:54,725 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-21 14:34:54,726 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-21 14:34:54,726 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-21 14:34:54,726 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> false [2023-12-21 14:34:54,912 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-21 14:34:54,931 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-21 14:34:54,932 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-21 14:34:54,933 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-21 14:34:54,933 INFO L274 PluginConnector]: CDTParser initialized [2023-12-21 14:34:54,934 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_opt-floodmax.5.3.ufo.BOUNDED-10.pals.c.v+nlh-reducer.c [2023-12-21 14:34:55,979 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-21 14:34:56,291 INFO L384 CDTParser]: Found 1 translation units. [2023-12-21 14:34:56,292 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_opt-floodmax.5.3.ufo.BOUNDED-10.pals.c.v+nlh-reducer.c [2023-12-21 14:34:56,316 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fa6884b10/1546f98c7856493bae6be6a06d2e721f/FLAG49b50fb55 [2023-12-21 14:34:56,329 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fa6884b10/1546f98c7856493bae6be6a06d2e721f [2023-12-21 14:34:56,331 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-21 14:34:56,332 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-21 14:34:56,333 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-21 14:34:56,333 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-21 14:34:56,338 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-21 14:34:56,338 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 02:34:56" (1/1) ... [2023-12-21 14:34:56,339 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1e288ea7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 02:34:56, skipping insertion in model container [2023-12-21 14:34:56,339 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 02:34:56" (1/1) ... [2023-12-21 14:34:56,436 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-21 14:34:56,921 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_opt-floodmax.5.3.ufo.BOUNDED-10.pals.c.v+nlh-reducer.c[40039,40052] [2023-12-21 14:34:57,181 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-21 14:34:57,205 INFO L202 MainTranslator]: Completed pre-run [2023-12-21 14:34:57,368 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_opt-floodmax.5.3.ufo.BOUNDED-10.pals.c.v+nlh-reducer.c[40039,40052] [2023-12-21 14:34:57,532 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-21 14:34:57,553 INFO L206 MainTranslator]: Completed translation [2023-12-21 14:34:57,554 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 02:34:57 WrapperNode [2023-12-21 14:34:57,554 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-21 14:34:57,555 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-21 14:34:57,555 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-21 14:34:57,555 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-21 14:34:57,560 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 02:34:57" (1/1) ... [2023-12-21 14:34:57,609 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 02:34:57" (1/1) ... [2023-12-21 14:34:57,719 INFO L138 Inliner]: procedures = 24, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 5485 [2023-12-21 14:34:57,720 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-21 14:34:57,720 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-21 14:34:57,721 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-21 14:34:57,721 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-21 14:34:57,728 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 02:34:57" (1/1) ... [2023-12-21 14:34:57,729 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 02:34:57" (1/1) ... [2023-12-21 14:34:57,743 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 02:34:57" (1/1) ... [2023-12-21 14:34:57,794 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-12-21 14:34:57,794 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 02:34:57" (1/1) ... [2023-12-21 14:34:57,794 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 02:34:57" (1/1) ... [2023-12-21 14:34:57,840 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 02:34:57" (1/1) ... [2023-12-21 14:34:57,925 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 02:34:57" (1/1) ... [2023-12-21 14:34:57,946 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 02:34:57" (1/1) ... [2023-12-21 14:34:57,965 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 02:34:57" (1/1) ... [2023-12-21 14:34:57,984 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-21 14:34:57,986 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-21 14:34:57,986 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-21 14:34:57,986 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-21 14:34:57,987 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 02:34:57" (1/1) ... [2023-12-21 14:34:57,991 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-21 14:34:58,000 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 14:34:58,012 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-12-21 14:34:58,022 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-12-21 14:34:58,042 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-21 14:34:58,042 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-21 14:34:58,042 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-21 14:34:58,042 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-21 14:34:58,273 INFO L241 CfgBuilder]: Building ICFG [2023-12-21 14:34:58,275 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-21 14:35:00,375 INFO L282 CfgBuilder]: Performing block encoding [2023-12-21 14:35:00,446 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-21 14:35:00,446 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-12-21 14:35:00,447 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 02:35:00 BoogieIcfgContainer [2023-12-21 14:35:00,448 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-21 14:35:00,449 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-21 14:35:00,449 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-21 14:35:00,452 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-21 14:35:00,452 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.12 02:34:56" (1/3) ... [2023-12-21 14:35:00,453 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d5ace93 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 02:35:00, skipping insertion in model container [2023-12-21 14:35:00,453 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 02:34:57" (2/3) ... [2023-12-21 14:35:00,454 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d5ace93 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 02:35:00, skipping insertion in model container [2023-12-21 14:35:00,454 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 02:35:00" (3/3) ... [2023-12-21 14:35:00,455 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_opt-floodmax.5.3.ufo.BOUNDED-10.pals.c.v+nlh-reducer.c [2023-12-21 14:35:00,468 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-21 14:35:00,468 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-21 14:35:00,521 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-21 14:35:00,526 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;@66db89f6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-21 14:35:00,526 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-21 14:35:00,535 INFO L276 IsEmpty]: Start isEmpty. Operand has 1542 states, 1540 states have (on average 1.7811688311688312) internal successors, (2743), 1541 states have internal predecessors, (2743), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:35:00,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 392 [2023-12-21 14:35:00,559 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:35:00,560 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 14:35:00,561 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 14:35:00,565 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:35:00,565 INFO L85 PathProgramCache]: Analyzing trace with hash 1883713418, now seen corresponding path program 1 times [2023-12-21 14:35:00,574 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:35:00,574 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1007692643] [2023-12-21 14:35:00,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:35:00,575 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:35:00,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:35:01,254 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 14:35:01,254 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:35:01,254 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1007692643] [2023-12-21 14:35:01,255 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1007692643] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:35:01,255 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:35:01,255 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 14:35:01,256 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1907599693] [2023-12-21 14:35:01,257 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:35:01,261 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 14:35:01,262 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:35:01,284 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 14:35:01,285 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 14:35:01,290 INFO L87 Difference]: Start difference. First operand has 1542 states, 1540 states have (on average 1.7811688311688312) internal successors, (2743), 1541 states have internal predecessors, (2743), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 130.33333333333334) internal successors, (391), 3 states have internal predecessors, (391), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:35:01,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:35:01,440 INFO L93 Difference]: Finished difference Result 3140 states and 5486 transitions. [2023-12-21 14:35:01,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 14:35:01,450 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 130.33333333333334) internal successors, (391), 3 states have internal predecessors, (391), 0 states have call successors, (0), 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 391 [2023-12-21 14:35:01,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:35:01,486 INFO L225 Difference]: With dead ends: 3140 [2023-12-21 14:35:01,487 INFO L226 Difference]: Without dead ends: 2169 [2023-12-21 14:35:01,495 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 14:35:01,498 INFO L413 NwaCegarLoop]: 3211 mSDtfsCounter, 1316 mSDsluCounter, 2467 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1316 SdHoareTripleChecker+Valid, 5678 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 14:35:01,499 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1316 Valid, 5678 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 14:35:01,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2169 states. [2023-12-21 14:35:01,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2169 to 2167. [2023-12-21 14:35:01,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2167 states, 2166 states have (on average 1.672668513388735) internal successors, (3623), 2166 states have internal predecessors, (3623), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:35:01,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2167 states to 2167 states and 3623 transitions. [2023-12-21 14:35:01,600 INFO L78 Accepts]: Start accepts. Automaton has 2167 states and 3623 transitions. Word has length 391 [2023-12-21 14:35:01,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:35:01,602 INFO L495 AbstractCegarLoop]: Abstraction has 2167 states and 3623 transitions. [2023-12-21 14:35:01,602 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 130.33333333333334) internal successors, (391), 3 states have internal predecessors, (391), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:35:01,602 INFO L276 IsEmpty]: Start isEmpty. Operand 2167 states and 3623 transitions. [2023-12-21 14:35:01,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 392 [2023-12-21 14:35:01,609 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:35:01,609 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 14:35:01,610 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-21 14:35:01,610 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 14:35:01,610 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:35:01,610 INFO L85 PathProgramCache]: Analyzing trace with hash 130553042, now seen corresponding path program 1 times [2023-12-21 14:35:01,611 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:35:01,611 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1866527636] [2023-12-21 14:35:01,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:35:01,612 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:35:01,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:35:01,920 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 14:35:01,920 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:35:01,920 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1866527636] [2023-12-21 14:35:01,921 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1866527636] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:35:01,922 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:35:01,922 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 14:35:01,922 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [698907695] [2023-12-21 14:35:01,922 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:35:01,925 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 14:35:01,927 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:35:01,929 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 14:35:01,929 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 14:35:01,930 INFO L87 Difference]: Start difference. First operand 2167 states and 3623 transitions. Second operand has 3 states, 3 states have (on average 130.33333333333334) internal successors, (391), 3 states have internal predecessors, (391), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:35:02,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:35:02,002 INFO L93 Difference]: Finished difference Result 4809 states and 7951 transitions. [2023-12-21 14:35:02,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 14:35:02,003 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 130.33333333333334) internal successors, (391), 3 states have internal predecessors, (391), 0 states have call successors, (0), 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 391 [2023-12-21 14:35:02,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:35:02,020 INFO L225 Difference]: With dead ends: 4809 [2023-12-21 14:35:02,020 INFO L226 Difference]: Without dead ends: 3245 [2023-12-21 14:35:02,024 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 14:35:02,025 INFO L413 NwaCegarLoop]: 3265 mSDtfsCounter, 1224 mSDsluCounter, 2278 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1224 SdHoareTripleChecker+Valid, 5543 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 14:35:02,026 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1224 Valid, 5543 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 14:35:02,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3245 states. [2023-12-21 14:35:02,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3245 to 3243. [2023-12-21 14:35:02,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3243 states, 3242 states have (on average 1.6582356570018506) internal successors, (5376), 3242 states have internal predecessors, (5376), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:35:02,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3243 states to 3243 states and 5376 transitions. [2023-12-21 14:35:02,098 INFO L78 Accepts]: Start accepts. Automaton has 3243 states and 5376 transitions. Word has length 391 [2023-12-21 14:35:02,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:35:02,100 INFO L495 AbstractCegarLoop]: Abstraction has 3243 states and 5376 transitions. [2023-12-21 14:35:02,100 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 130.33333333333334) internal successors, (391), 3 states have internal predecessors, (391), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:35:02,100 INFO L276 IsEmpty]: Start isEmpty. Operand 3243 states and 5376 transitions. [2023-12-21 14:35:02,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 392 [2023-12-21 14:35:02,109 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:35:02,109 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 14:35:02,109 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-21 14:35:02,110 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 14:35:02,110 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:35:02,111 INFO L85 PathProgramCache]: Analyzing trace with hash -2057878840, now seen corresponding path program 1 times [2023-12-21 14:35:02,111 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:35:02,111 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [905972603] [2023-12-21 14:35:02,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:35:02,112 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:35:02,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:35:02,353 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 14:35:02,353 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:35:02,353 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [905972603] [2023-12-21 14:35:02,354 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [905972603] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:35:02,354 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:35:02,354 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 14:35:02,354 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1334863394] [2023-12-21 14:35:02,354 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:35:02,355 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 14:35:02,355 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:35:02,356 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 14:35:02,358 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 14:35:02,358 INFO L87 Difference]: Start difference. First operand 3243 states and 5376 transitions. Second operand has 3 states, 3 states have (on average 130.33333333333334) internal successors, (391), 3 states have internal predecessors, (391), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:35:02,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:35:02,422 INFO L93 Difference]: Finished difference Result 7415 states and 12181 transitions. [2023-12-21 14:35:02,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 14:35:02,422 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 130.33333333333334) internal successors, (391), 3 states have internal predecessors, (391), 0 states have call successors, (0), 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 391 [2023-12-21 14:35:02,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:35:02,437 INFO L225 Difference]: With dead ends: 7415 [2023-12-21 14:35:02,437 INFO L226 Difference]: Without dead ends: 4879 [2023-12-21 14:35:02,443 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 14:35:02,445 INFO L413 NwaCegarLoop]: 3127 mSDtfsCounter, 1206 mSDsluCounter, 2138 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1206 SdHoareTripleChecker+Valid, 5265 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 14:35:02,446 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1206 Valid, 5265 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 14:35:02,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4879 states. [2023-12-21 14:35:02,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4879 to 4877. [2023-12-21 14:35:02,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4877 states, 4876 states have (on average 1.6449958982772765) internal successors, (8021), 4876 states have internal predecessors, (8021), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:35:02,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4877 states to 4877 states and 8021 transitions. [2023-12-21 14:35:02,543 INFO L78 Accepts]: Start accepts. Automaton has 4877 states and 8021 transitions. Word has length 391 [2023-12-21 14:35:02,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:35:02,547 INFO L495 AbstractCegarLoop]: Abstraction has 4877 states and 8021 transitions. [2023-12-21 14:35:02,547 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 130.33333333333334) internal successors, (391), 3 states have internal predecessors, (391), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:35:02,551 INFO L276 IsEmpty]: Start isEmpty. Operand 4877 states and 8021 transitions. [2023-12-21 14:35:02,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 392 [2023-12-21 14:35:02,565 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:35:02,565 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 14:35:02,565 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-21 14:35:02,566 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 14:35:02,566 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:35:02,566 INFO L85 PathProgramCache]: Analyzing trace with hash -1648212235, now seen corresponding path program 1 times [2023-12-21 14:35:02,566 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:35:02,567 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [475343024] [2023-12-21 14:35:02,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:35:02,567 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:35:02,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:35:02,843 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 14:35:02,844 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:35:02,844 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [475343024] [2023-12-21 14:35:02,844 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [475343024] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:35:02,844 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:35:02,844 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 14:35:02,844 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [219863130] [2023-12-21 14:35:02,844 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:35:02,845 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 14:35:02,845 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:35:02,845 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 14:35:02,846 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 14:35:02,846 INFO L87 Difference]: Start difference. First operand 4877 states and 8021 transitions. Second operand has 3 states, 3 states have (on average 130.33333333333334) internal successors, (391), 3 states have internal predecessors, (391), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:35:02,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:35:02,907 INFO L93 Difference]: Finished difference Result 6749 states and 11199 transitions. [2023-12-21 14:35:02,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 14:35:02,907 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 130.33333333333334) internal successors, (391), 3 states have internal predecessors, (391), 0 states have call successors, (0), 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 391 [2023-12-21 14:35:02,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:35:02,924 INFO L225 Difference]: With dead ends: 6749 [2023-12-21 14:35:02,924 INFO L226 Difference]: Without dead ends: 5459 [2023-12-21 14:35:02,928 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 14:35:02,928 INFO L413 NwaCegarLoop]: 3108 mSDtfsCounter, 1502 mSDsluCounter, 1833 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1502 SdHoareTripleChecker+Valid, 4941 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 14:35:02,928 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1502 Valid, 4941 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 14:35:02,933 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5459 states. [2023-12-21 14:35:03,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5459 to 5453. [2023-12-21 14:35:03,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5453 states, 5452 states have (on average 1.6502201027146002) internal successors, (8997), 5452 states have internal predecessors, (8997), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:35:03,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5453 states to 5453 states and 8997 transitions. [2023-12-21 14:35:03,037 INFO L78 Accepts]: Start accepts. Automaton has 5453 states and 8997 transitions. Word has length 391 [2023-12-21 14:35:03,038 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:35:03,038 INFO L495 AbstractCegarLoop]: Abstraction has 5453 states and 8997 transitions. [2023-12-21 14:35:03,038 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 130.33333333333334) internal successors, (391), 3 states have internal predecessors, (391), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:35:03,038 INFO L276 IsEmpty]: Start isEmpty. Operand 5453 states and 8997 transitions. [2023-12-21 14:35:03,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 392 [2023-12-21 14:35:03,047 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:35:03,048 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 14:35:03,048 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-21 14:35:03,048 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 14:35:03,049 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:35:03,049 INFO L85 PathProgramCache]: Analyzing trace with hash -145893302, now seen corresponding path program 1 times [2023-12-21 14:35:03,049 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:35:03,049 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1837505379] [2023-12-21 14:35:03,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:35:03,049 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:35:03,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:35:03,524 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 14:35:03,524 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:35:03,525 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1837505379] [2023-12-21 14:35:03,525 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1837505379] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:35:03,525 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:35:03,526 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 14:35:03,526 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1749438659] [2023-12-21 14:35:03,527 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:35:03,527 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-21 14:35:03,527 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:35:03,528 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-21 14:35:03,528 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-21 14:35:03,528 INFO L87 Difference]: Start difference. First operand 5453 states and 8997 transitions. Second operand has 7 states, 7 states have (on average 55.857142857142854) internal successors, (391), 7 states have internal predecessors, (391), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:35:04,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:35:04,050 INFO L93 Difference]: Finished difference Result 25205 states and 42481 transitions. [2023-12-21 14:35:04,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-21 14:35:04,051 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 55.857142857142854) internal successors, (391), 7 states have internal predecessors, (391), 0 states have call successors, (0), 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 391 [2023-12-21 14:35:04,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:35:04,112 INFO L225 Difference]: With dead ends: 25205 [2023-12-21 14:35:04,113 INFO L226 Difference]: Without dead ends: 23339 [2023-12-21 14:35:04,124 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 [2023-12-21 14:35:04,125 INFO L413 NwaCegarLoop]: 2507 mSDtfsCounter, 10241 mSDsluCounter, 13235 mSDsCounter, 0 mSdLazyCounter, 352 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10241 SdHoareTripleChecker+Valid, 15742 SdHoareTripleChecker+Invalid, 355 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 352 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-21 14:35:04,125 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10241 Valid, 15742 Invalid, 355 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 352 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-21 14:35:04,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23339 states. [2023-12-21 14:35:04,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23339 to 7977. [2023-12-21 14:35:04,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7977 states, 7976 states have (on average 1.6591023069207622) internal successors, (13233), 7976 states have internal predecessors, (13233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:35:04,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7977 states to 7977 states and 13233 transitions. [2023-12-21 14:35:04,411 INFO L78 Accepts]: Start accepts. Automaton has 7977 states and 13233 transitions. Word has length 391 [2023-12-21 14:35:04,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:35:04,412 INFO L495 AbstractCegarLoop]: Abstraction has 7977 states and 13233 transitions. [2023-12-21 14:35:04,412 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 55.857142857142854) internal successors, (391), 7 states have internal predecessors, (391), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:35:04,412 INFO L276 IsEmpty]: Start isEmpty. Operand 7977 states and 13233 transitions. [2023-12-21 14:35:04,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 393 [2023-12-21 14:35:04,422 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:35:04,422 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 14:35:04,423 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-21 14:35:04,423 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 14:35:04,423 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:35:04,423 INFO L85 PathProgramCache]: Analyzing trace with hash -911549111, now seen corresponding path program 1 times [2023-12-21 14:35:04,423 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:35:04,424 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [983523086] [2023-12-21 14:35:04,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:35:04,424 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:35:04,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:35:04,684 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 14:35:04,684 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:35:04,684 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [983523086] [2023-12-21 14:35:04,684 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [983523086] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:35:04,684 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:35:04,684 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-21 14:35:04,684 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2058783076] [2023-12-21 14:35:04,685 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:35:04,685 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-21 14:35:04,685 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:35:04,686 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-21 14:35:04,686 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-21 14:35:04,686 INFO L87 Difference]: Start difference. First operand 7977 states and 13233 transitions. Second operand has 4 states, 4 states have (on average 98.0) internal successors, (392), 4 states have internal predecessors, (392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:35:04,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:35:04,860 INFO L93 Difference]: Finished difference Result 20071 states and 33670 transitions. [2023-12-21 14:35:04,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-21 14:35:04,861 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 98.0) internal successors, (392), 4 states have internal predecessors, (392), 0 states have call successors, (0), 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 392 [2023-12-21 14:35:04,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:35:04,887 INFO L225 Difference]: With dead ends: 20071 [2023-12-21 14:35:04,887 INFO L226 Difference]: Without dead ends: 16341 [2023-12-21 14:35:04,897 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 [2023-12-21 14:35:04,898 INFO L413 NwaCegarLoop]: 2773 mSDtfsCounter, 3527 mSDsluCounter, 3587 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3527 SdHoareTripleChecker+Valid, 6360 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 14:35:04,898 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3527 Valid, 6360 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 14:35:04,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16341 states. [2023-12-21 14:35:05,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16341 to 12349. [2023-12-21 14:35:05,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12349 states, 12348 states have (on average 1.6670715905409783) internal successors, (20585), 12348 states have internal predecessors, (20585), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:35:05,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12349 states to 12349 states and 20585 transitions. [2023-12-21 14:35:05,140 INFO L78 Accepts]: Start accepts. Automaton has 12349 states and 20585 transitions. Word has length 392 [2023-12-21 14:35:05,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:35:05,141 INFO L495 AbstractCegarLoop]: Abstraction has 12349 states and 20585 transitions. [2023-12-21 14:35:05,142 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 98.0) internal successors, (392), 4 states have internal predecessors, (392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:35:05,142 INFO L276 IsEmpty]: Start isEmpty. Operand 12349 states and 20585 transitions. [2023-12-21 14:35:05,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 394 [2023-12-21 14:35:05,153 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:35:05,154 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 14:35:05,154 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-12-21 14:35:05,154 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 14:35:05,154 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:35:05,154 INFO L85 PathProgramCache]: Analyzing trace with hash -1236096055, now seen corresponding path program 1 times [2023-12-21 14:35:05,155 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:35:05,155 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [566176190] [2023-12-21 14:35:05,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:35:05,155 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:35:05,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:35:05,342 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 14:35:05,343 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:35:05,343 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [566176190] [2023-12-21 14:35:05,343 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [566176190] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:35:05,343 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:35:05,343 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 14:35:05,343 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1682241868] [2023-12-21 14:35:05,343 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:35:05,344 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 14:35:05,344 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:35:05,345 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 14:35:05,346 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 14:35:05,346 INFO L87 Difference]: Start difference. First operand 12349 states and 20585 transitions. Second operand has 3 states, 3 states have (on average 131.0) internal successors, (393), 3 states have internal predecessors, (393), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:35:05,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:35:05,545 INFO L93 Difference]: Finished difference Result 27175 states and 45398 transitions. [2023-12-21 14:35:05,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 14:35:05,546 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 131.0) internal successors, (393), 3 states have internal predecessors, (393), 0 states have call successors, (0), 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 393 [2023-12-21 14:35:05,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:35:05,585 INFO L225 Difference]: With dead ends: 27175 [2023-12-21 14:35:05,585 INFO L226 Difference]: Without dead ends: 23033 [2023-12-21 14:35:05,601 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 14:35:05,602 INFO L413 NwaCegarLoop]: 2445 mSDtfsCounter, 1385 mSDsluCounter, 2114 mSDsCounter, 0 mSdLazyCounter, 169 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1385 SdHoareTripleChecker+Valid, 4559 SdHoareTripleChecker+Invalid, 172 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 169 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 14:35:05,602 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1385 Valid, 4559 Invalid, 172 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 169 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 14:35:05,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23033 states. [2023-12-21 14:35:05,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23033 to 23031. [2023-12-21 14:35:05,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23031 states, 23030 states have (on average 1.6667824576639165) internal successors, (38386), 23030 states have internal predecessors, (38386), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:35:06,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23031 states to 23031 states and 38386 transitions. [2023-12-21 14:35:06,028 INFO L78 Accepts]: Start accepts. Automaton has 23031 states and 38386 transitions. Word has length 393 [2023-12-21 14:35:06,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:35:06,029 INFO L495 AbstractCegarLoop]: Abstraction has 23031 states and 38386 transitions. [2023-12-21 14:35:06,029 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 131.0) internal successors, (393), 3 states have internal predecessors, (393), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:35:06,029 INFO L276 IsEmpty]: Start isEmpty. Operand 23031 states and 38386 transitions. [2023-12-21 14:35:06,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 394 [2023-12-21 14:35:06,054 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:35:06,055 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 14:35:06,055 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-12-21 14:35:06,055 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 14:35:06,056 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:35:06,056 INFO L85 PathProgramCache]: Analyzing trace with hash 959801900, now seen corresponding path program 1 times [2023-12-21 14:35:06,056 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:35:06,056 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [151173680] [2023-12-21 14:35:06,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:35:06,057 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:35:06,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:35:06,515 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 14:35:06,516 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:35:06,516 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [151173680] [2023-12-21 14:35:06,516 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [151173680] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:35:06,516 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:35:06,516 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 14:35:06,516 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1057484948] [2023-12-21 14:35:06,516 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:35:06,517 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-21 14:35:06,517 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:35:06,518 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-21 14:35:06,518 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-21 14:35:06,518 INFO L87 Difference]: Start difference. First operand 23031 states and 38386 transitions. Second operand has 7 states, 7 states have (on average 56.142857142857146) internal successors, (393), 7 states have internal predecessors, (393), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:35:07,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:35:07,133 INFO L93 Difference]: Finished difference Result 97955 states and 164816 transitions. [2023-12-21 14:35:07,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-21 14:35:07,134 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 56.142857142857146) internal successors, (393), 7 states have internal predecessors, (393), 0 states have call successors, (0), 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 393 [2023-12-21 14:35:07,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:35:07,299 INFO L225 Difference]: With dead ends: 97955 [2023-12-21 14:35:07,300 INFO L226 Difference]: Without dead ends: 83065 [2023-12-21 14:35:07,325 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2023-12-21 14:35:07,327 INFO L413 NwaCegarLoop]: 3213 mSDtfsCounter, 7633 mSDsluCounter, 9171 mSDsCounter, 0 mSdLazyCounter, 222 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7633 SdHoareTripleChecker+Valid, 12384 SdHoareTripleChecker+Invalid, 223 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 222 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 14:35:07,327 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7633 Valid, 12384 Invalid, 223 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 222 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 14:35:07,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83065 states. [2023-12-21 14:35:08,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83065 to 38359. [2023-12-21 14:35:08,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38359 states, 38358 states have (on average 1.6733927733458471) internal successors, (64188), 38358 states have internal predecessors, (64188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:35:08,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38359 states to 38359 states and 64188 transitions. [2023-12-21 14:35:08,156 INFO L78 Accepts]: Start accepts. Automaton has 38359 states and 64188 transitions. Word has length 393 [2023-12-21 14:35:08,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:35:08,157 INFO L495 AbstractCegarLoop]: Abstraction has 38359 states and 64188 transitions. [2023-12-21 14:35:08,157 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 56.142857142857146) internal successors, (393), 7 states have internal predecessors, (393), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:35:08,157 INFO L276 IsEmpty]: Start isEmpty. Operand 38359 states and 64188 transitions. [2023-12-21 14:35:08,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 394 [2023-12-21 14:35:08,174 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:35:08,174 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 14:35:08,174 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-12-21 14:35:08,174 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 14:35:08,175 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:35:08,175 INFO L85 PathProgramCache]: Analyzing trace with hash -940599786, now seen corresponding path program 1 times [2023-12-21 14:35:08,175 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:35:08,175 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1885886795] [2023-12-21 14:35:08,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:35:08,175 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:35:08,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:35:08,553 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 14:35:08,553 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:35:08,553 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1885886795] [2023-12-21 14:35:08,553 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1885886795] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:35:08,554 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:35:08,554 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 14:35:08,554 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1206088997] [2023-12-21 14:35:08,554 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:35:08,555 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-21 14:35:08,555 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:35:08,555 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-21 14:35:08,555 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-21 14:35:08,556 INFO L87 Difference]: Start difference. First operand 38359 states and 64188 transitions. Second operand has 7 states, 7 states have (on average 56.142857142857146) internal successors, (393), 7 states have internal predecessors, (393), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:35:09,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:35:09,195 INFO L93 Difference]: Finished difference Result 112883 states and 189948 transitions. [2023-12-21 14:35:09,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-21 14:35:09,196 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 56.142857142857146) internal successors, (393), 7 states have internal predecessors, (393), 0 states have call successors, (0), 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 393 [2023-12-21 14:35:09,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:35:09,518 INFO L225 Difference]: With dead ends: 112883 [2023-12-21 14:35:09,519 INFO L226 Difference]: Without dead ends: 97993 [2023-12-21 14:35:09,542 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2023-12-21 14:35:09,544 INFO L413 NwaCegarLoop]: 2867 mSDtfsCounter, 8003 mSDsluCounter, 8500 mSDsCounter, 0 mSdLazyCounter, 188 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8003 SdHoareTripleChecker+Valid, 11367 SdHoareTripleChecker+Invalid, 189 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 188 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 14:35:09,544 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8003 Valid, 11367 Invalid, 189 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 188 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 14:35:09,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97993 states. [2023-12-21 14:35:10,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97993 to 60731. [2023-12-21 14:35:10,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60731 states, 60730 states have (on average 1.6769636094187388) internal successors, (101842), 60730 states have internal predecessors, (101842), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:35:10,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60731 states to 60731 states and 101842 transitions. [2023-12-21 14:35:10,523 INFO L78 Accepts]: Start accepts. Automaton has 60731 states and 101842 transitions. Word has length 393 [2023-12-21 14:35:10,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:35:10,524 INFO L495 AbstractCegarLoop]: Abstraction has 60731 states and 101842 transitions. [2023-12-21 14:35:10,524 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 56.142857142857146) internal successors, (393), 7 states have internal predecessors, (393), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:35:10,524 INFO L276 IsEmpty]: Start isEmpty. Operand 60731 states and 101842 transitions. [2023-12-21 14:35:10,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 394 [2023-12-21 14:35:10,539 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:35:10,540 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 14:35:10,540 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-12-21 14:35:10,540 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 14:35:10,540 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:35:10,541 INFO L85 PathProgramCache]: Analyzing trace with hash 1127482609, now seen corresponding path program 1 times [2023-12-21 14:35:10,541 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:35:10,541 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1511552636] [2023-12-21 14:35:10,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:35:10,541 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:35:10,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:35:11,003 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 14:35:11,003 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:35:11,003 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1511552636] [2023-12-21 14:35:11,003 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1511552636] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:35:11,004 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:35:11,004 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-21 14:35:11,004 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1307000212] [2023-12-21 14:35:11,004 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:35:11,004 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-21 14:35:11,004 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:35:11,005 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-21 14:35:11,005 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-21 14:35:11,006 INFO L87 Difference]: Start difference. First operand 60731 states and 101842 transitions. Second operand has 4 states, 4 states have (on average 98.25) internal successors, (393), 4 states have internal predecessors, (393), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:35:11,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:35:11,617 INFO L93 Difference]: Finished difference Result 181457 states and 305319 transitions. [2023-12-21 14:35:11,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-21 14:35:11,617 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 98.25) internal successors, (393), 4 states have internal predecessors, (393), 0 states have call successors, (0), 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 393 [2023-12-21 14:35:11,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:35:11,831 INFO L225 Difference]: With dead ends: 181457 [2023-12-21 14:35:11,831 INFO L226 Difference]: Without dead ends: 129347 [2023-12-21 14:35:12,043 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 [2023-12-21 14:35:12,044 INFO L413 NwaCegarLoop]: 2772 mSDtfsCounter, 3458 mSDsluCounter, 3389 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3458 SdHoareTripleChecker+Valid, 6161 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 14:35:12,045 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3458 Valid, 6161 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 14:35:12,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129347 states. [2023-12-21 14:35:13,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129347 to 114103. [2023-12-21 14:35:13,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 114103 states, 114102 states have (on average 1.6771485162398556) internal successors, (191366), 114102 states have internal predecessors, (191366), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:35:13,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114103 states to 114103 states and 191366 transitions. [2023-12-21 14:35:13,697 INFO L78 Accepts]: Start accepts. Automaton has 114103 states and 191366 transitions. Word has length 393 [2023-12-21 14:35:13,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:35:13,698 INFO L495 AbstractCegarLoop]: Abstraction has 114103 states and 191366 transitions. [2023-12-21 14:35:13,698 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 98.25) internal successors, (393), 4 states have internal predecessors, (393), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:35:13,698 INFO L276 IsEmpty]: Start isEmpty. Operand 114103 states and 191366 transitions. [2023-12-21 14:35:13,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 394 [2023-12-21 14:35:13,714 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:35:13,714 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 14:35:13,714 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-12-21 14:35:13,714 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 14:35:13,715 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:35:13,715 INFO L85 PathProgramCache]: Analyzing trace with hash 475062470, now seen corresponding path program 1 times [2023-12-21 14:35:13,715 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:35:13,715 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1757098079] [2023-12-21 14:35:13,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:35:13,715 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:35:13,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:35:14,124 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 14:35:14,124 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:35:14,124 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1757098079] [2023-12-21 14:35:14,124 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1757098079] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:35:14,124 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:35:14,124 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 14:35:14,124 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [7067869] [2023-12-21 14:35:14,125 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:35:14,125 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-21 14:35:14,125 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:35:14,126 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-21 14:35:14,126 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-21 14:35:14,126 INFO L87 Difference]: Start difference. First operand 114103 states and 191366 transitions. Second operand has 7 states, 7 states have (on average 56.142857142857146) internal successors, (393), 7 states have internal predecessors, (393), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:35:15,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:35:15,022 INFO L93 Difference]: Finished difference Result 218675 states and 367666 transitions. [2023-12-21 14:35:15,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-21 14:35:15,023 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 56.142857142857146) internal successors, (393), 7 states have internal predecessors, (393), 0 states have call successors, (0), 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 393 [2023-12-21 14:35:15,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:35:15,569 INFO L225 Difference]: With dead ends: 218675 [2023-12-21 14:35:15,570 INFO L226 Difference]: Without dead ends: 203785 [2023-12-21 14:35:15,615 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2023-12-21 14:35:15,616 INFO L413 NwaCegarLoop]: 3255 mSDtfsCounter, 7814 mSDsluCounter, 10598 mSDsCounter, 0 mSdLazyCounter, 258 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7814 SdHoareTripleChecker+Valid, 13853 SdHoareTripleChecker+Invalid, 259 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 258 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 14:35:15,616 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7814 Valid, 13853 Invalid, 259 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 258 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 14:35:15,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 203785 states. [2023-12-21 14:35:17,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 203785 to 129411. [2023-12-21 14:35:17,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 129411 states, 129410 states have (on average 1.6779846997913608) internal successors, (217148), 129410 states have internal predecessors, (217148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:35:18,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129411 states to 129411 states and 217148 transitions. [2023-12-21 14:35:18,037 INFO L78 Accepts]: Start accepts. Automaton has 129411 states and 217148 transitions. Word has length 393 [2023-12-21 14:35:18,038 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:35:18,038 INFO L495 AbstractCegarLoop]: Abstraction has 129411 states and 217148 transitions. [2023-12-21 14:35:18,038 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 56.142857142857146) internal successors, (393), 7 states have internal predecessors, (393), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:35:18,038 INFO L276 IsEmpty]: Start isEmpty. Operand 129411 states and 217148 transitions. [2023-12-21 14:35:18,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 395 [2023-12-21 14:35:18,073 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:35:18,084 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 14:35:18,084 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-12-21 14:35:18,085 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 14:35:18,085 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:35:18,085 INFO L85 PathProgramCache]: Analyzing trace with hash -845945143, now seen corresponding path program 1 times [2023-12-21 14:35:18,085 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:35:18,085 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [229701150] [2023-12-21 14:35:18,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:35:18,086 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:35:18,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:35:18,250 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 14:35:18,251 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:35:18,251 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [229701150] [2023-12-21 14:35:18,251 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [229701150] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:35:18,251 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:35:18,251 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 14:35:18,251 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [58923024] [2023-12-21 14:35:18,251 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:35:18,252 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 14:35:18,252 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:35:18,252 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 14:35:18,252 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 14:35:18,252 INFO L87 Difference]: Start difference. First operand 129411 states and 217148 transitions. Second operand has 3 states, 3 states have (on average 131.33333333333334) internal successors, (394), 3 states have internal predecessors, (394), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:35:19,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:35:19,575 INFO L93 Difference]: Finished difference Result 385614 states and 647044 transitions. [2023-12-21 14:35:19,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 14:35:19,576 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 131.33333333333334) internal successors, (394), 3 states have internal predecessors, (394), 0 states have call successors, (0), 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 394 [2023-12-21 14:35:19,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:35:20,045 INFO L225 Difference]: With dead ends: 385614 [2023-12-21 14:35:20,045 INFO L226 Difference]: Without dead ends: 256307 [2023-12-21 14:35:20,114 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 14:35:20,115 INFO L413 NwaCegarLoop]: 3402 mSDtfsCounter, 2295 mSDsluCounter, 2503 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2295 SdHoareTripleChecker+Valid, 5905 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 14:35:20,115 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2295 Valid, 5905 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 14:35:20,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 256307 states. [2023-12-21 14:35:23,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 256307 to 256305. [2023-12-21 14:35:23,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 256305 states, 256304 states have (on average 1.6748743679380735) internal successors, (429277), 256304 states have internal predecessors, (429277), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:35:24,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 256305 states to 256305 states and 429277 transitions. [2023-12-21 14:35:24,257 INFO L78 Accepts]: Start accepts. Automaton has 256305 states and 429277 transitions. Word has length 394 [2023-12-21 14:35:24,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:35:24,258 INFO L495 AbstractCegarLoop]: Abstraction has 256305 states and 429277 transitions. [2023-12-21 14:35:24,258 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 131.33333333333334) internal successors, (394), 3 states have internal predecessors, (394), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:35:24,258 INFO L276 IsEmpty]: Start isEmpty. Operand 256305 states and 429277 transitions. [2023-12-21 14:35:24,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 395 [2023-12-21 14:35:24,321 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:35:24,321 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 14:35:24,321 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-12-21 14:35:24,322 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 14:35:24,322 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:35:24,322 INFO L85 PathProgramCache]: Analyzing trace with hash -986161261, now seen corresponding path program 1 times [2023-12-21 14:35:24,322 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:35:24,322 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1860660143] [2023-12-21 14:35:24,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:35:24,323 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:35:24,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:35:24,442 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 14:35:24,443 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:35:24,443 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1860660143] [2023-12-21 14:35:24,443 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1860660143] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:35:24,443 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:35:24,443 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 14:35:24,443 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [19761028] [2023-12-21 14:35:24,443 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:35:24,444 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 14:35:24,444 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:35:24,445 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 14:35:24,445 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 14:35:24,445 INFO L87 Difference]: Start difference. First operand 256305 states and 429277 transitions. Second operand has 3 states, 3 states have (on average 131.33333333333334) internal successors, (394), 3 states have internal predecessors, (394), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:35:27,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:35:27,296 INFO L93 Difference]: Finished difference Result 765285 states and 1281669 transitions. [2023-12-21 14:35:27,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 14:35:27,296 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 131.33333333333334) internal successors, (394), 3 states have internal predecessors, (394), 0 states have call successors, (0), 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 394 [2023-12-21 14:35:27,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:35:28,281 INFO L225 Difference]: With dead ends: 765285 [2023-12-21 14:35:28,281 INFO L226 Difference]: Without dead ends: 509056 [2023-12-21 14:35:28,415 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 14:35:28,416 INFO L413 NwaCegarLoop]: 3625 mSDtfsCounter, 2377 mSDsluCounter, 2505 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2377 SdHoareTripleChecker+Valid, 6130 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 14:35:28,416 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2377 Valid, 6130 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 14:35:28,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 509056 states. [2023-12-21 14:35:33,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 509056 to 509054. [2023-12-21 14:35:34,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 509054 states, 509053 states have (on average 1.6720695094616866) internal successors, (851172), 509053 states have internal predecessors, (851172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:35:37,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 509054 states to 509054 states and 851172 transitions. [2023-12-21 14:35:37,046 INFO L78 Accepts]: Start accepts. Automaton has 509054 states and 851172 transitions. Word has length 394 [2023-12-21 14:35:37,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:35:37,047 INFO L495 AbstractCegarLoop]: Abstraction has 509054 states and 851172 transitions. [2023-12-21 14:35:37,047 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 131.33333333333334) internal successors, (394), 3 states have internal predecessors, (394), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:35:37,047 INFO L276 IsEmpty]: Start isEmpty. Operand 509054 states and 851172 transitions. [2023-12-21 14:35:37,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 395 [2023-12-21 14:35:37,145 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:35:37,145 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 14:35:37,145 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-12-21 14:35:37,146 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 14:35:37,146 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:35:37,146 INFO L85 PathProgramCache]: Analyzing trace with hash 979737379, now seen corresponding path program 1 times [2023-12-21 14:35:37,146 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:35:37,146 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1471239711] [2023-12-21 14:35:37,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:35:37,147 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:35:37,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:35:37,400 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 14:35:37,401 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:35:37,401 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1471239711] [2023-12-21 14:35:37,401 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1471239711] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:35:37,401 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:35:37,401 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 14:35:37,401 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [985220900] [2023-12-21 14:35:37,401 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:35:37,402 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 14:35:37,402 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:35:37,402 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 14:35:37,403 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 14:35:37,403 INFO L87 Difference]: Start difference. First operand 509054 states and 851172 transitions. Second operand has 3 states, 3 states have (on average 131.33333333333334) internal successors, (394), 3 states have internal predecessors, (394), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:35:43,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:35:43,063 INFO L93 Difference]: Finished difference Result 1507864 states and 2521956 transitions. [2023-12-21 14:35:43,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 14:35:43,063 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 131.33333333333334) internal successors, (394), 3 states have internal predecessors, (394), 0 states have call successors, (0), 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 394 [2023-12-21 14:35:43,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:35:45,381 INFO L225 Difference]: With dead ends: 1507864 [2023-12-21 14:35:45,381 INFO L226 Difference]: Without dead ends: 998922 [2023-12-21 14:35:45,648 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 14:35:45,648 INFO L413 NwaCegarLoop]: 3584 mSDtfsCounter, 2257 mSDsluCounter, 2503 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2257 SdHoareTripleChecker+Valid, 6087 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 14:35:45,649 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2257 Valid, 6087 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 14:35:46,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 998922 states. [2023-12-21 14:35:56,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 998922 to 998920. [2023-12-21 14:35:57,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 998920 states, 998919 states have (on average 1.667646726110926) internal successors, (1665844), 998919 states have internal predecessors, (1665844), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:36:02,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 998920 states to 998920 states and 1665844 transitions. [2023-12-21 14:36:02,270 INFO L78 Accepts]: Start accepts. Automaton has 998920 states and 1665844 transitions. Word has length 394 [2023-12-21 14:36:02,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:36:02,271 INFO L495 AbstractCegarLoop]: Abstraction has 998920 states and 1665844 transitions. [2023-12-21 14:36:02,271 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 131.33333333333334) internal successors, (394), 3 states have internal predecessors, (394), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:36:02,271 INFO L276 IsEmpty]: Start isEmpty. Operand 998920 states and 1665844 transitions. [2023-12-21 14:36:02,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 395 [2023-12-21 14:36:02,415 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:36:02,416 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 14:36:02,416 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-12-21 14:36:02,416 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 14:36:02,417 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:36:02,417 INFO L85 PathProgramCache]: Analyzing trace with hash 879058811, now seen corresponding path program 1 times [2023-12-21 14:36:02,417 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:36:02,417 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [830519779] [2023-12-21 14:36:02,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:36:02,418 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:36:02,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:36:03,106 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 14:36:03,106 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:36:03,106 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [830519779] [2023-12-21 14:36:03,106 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [830519779] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:36:03,106 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:36:03,106 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-21 14:36:03,106 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [581924333] [2023-12-21 14:36:03,106 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:36:03,107 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-21 14:36:03,107 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:36:03,108 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-21 14:36:03,108 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-21 14:36:03,108 INFO L87 Difference]: Start difference. First operand 998920 states and 1665844 transitions. Second operand has 4 states, 4 states have (on average 98.5) internal successors, (394), 4 states have internal predecessors, (394), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:36:09,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:36:09,623 INFO L93 Difference]: Finished difference Result 1575598 states and 2631991 transitions. [2023-12-21 14:36:09,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-21 14:36:09,623 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 98.5) internal successors, (394), 4 states have internal predecessors, (394), 0 states have call successors, (0), 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 394 [2023-12-21 14:36:09,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:36:12,384 INFO L225 Difference]: With dead ends: 1575598 [2023-12-21 14:36:12,384 INFO L226 Difference]: Without dead ends: 1115468 [2023-12-21 14:36:13,046 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-21 14:36:13,047 INFO L413 NwaCegarLoop]: 3106 mSDtfsCounter, 1940 mSDsluCounter, 3076 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1940 SdHoareTripleChecker+Valid, 6182 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 14:36:13,047 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1940 Valid, 6182 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 14:36:13,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1115468 states. [2023-12-21 14:36:21,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1115468 to 646976. [2023-12-21 14:36:22,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 646976 states, 646975 states have (on average 1.6639591947138606) internal successors, (1076540), 646975 states have internal predecessors, (1076540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:36:25,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 646976 states to 646976 states and 1076540 transitions. [2023-12-21 14:36:25,187 INFO L78 Accepts]: Start accepts. Automaton has 646976 states and 1076540 transitions. Word has length 394 [2023-12-21 14:36:25,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:36:25,188 INFO L495 AbstractCegarLoop]: Abstraction has 646976 states and 1076540 transitions. [2023-12-21 14:36:25,188 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 98.5) internal successors, (394), 4 states have internal predecessors, (394), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:36:25,188 INFO L276 IsEmpty]: Start isEmpty. Operand 646976 states and 1076540 transitions. [2023-12-21 14:36:25,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 395 [2023-12-21 14:36:25,622 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:36:25,622 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 14:36:25,622 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-12-21 14:36:25,622 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 14:36:25,623 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:36:25,623 INFO L85 PathProgramCache]: Analyzing trace with hash -82485488, now seen corresponding path program 1 times [2023-12-21 14:36:25,623 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:36:25,623 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [660098063] [2023-12-21 14:36:25,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:36:25,623 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:36:25,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:36:25,861 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 14:36:25,861 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:36:25,861 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [660098063] [2023-12-21 14:36:25,862 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [660098063] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:36:25,863 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:36:25,863 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-21 14:36:25,863 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2063101768] [2023-12-21 14:36:25,863 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:36:25,863 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-21 14:36:25,863 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:36:25,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-21 14:36:25,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-21 14:36:25,864 INFO L87 Difference]: Start difference. First operand 646976 states and 1076540 transitions. Second operand has 4 states, 4 states have (on average 98.5) internal successors, (394), 4 states have internal predecessors, (394), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:36:33,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:36:33,205 INFO L93 Difference]: Finished difference Result 1926502 states and 3214463 transitions. [2023-12-21 14:36:33,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-21 14:36:33,206 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 98.5) internal successors, (394), 4 states have internal predecessors, (394), 0 states have call successors, (0), 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 394 [2023-12-21 14:36:33,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted.