/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/hardness-nfm22/hardness_variablewrapping_wrapper-ap_file-71.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-21 02:03:52,838 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-21 02:03:52,898 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 02:03:52,908 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-21 02:03:52,908 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-21 02:03:52,928 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-21 02:03:52,929 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-21 02:03:52,929 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-21 02:03:52,929 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-21 02:03:52,932 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-21 02:03:52,933 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-21 02:03:52,933 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-21 02:03:52,933 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-21 02:03:52,934 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-21 02:03:52,935 INFO L153 SettingsManager]: * Use SBE=true [2023-12-21 02:03:52,935 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-21 02:03:52,935 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-21 02:03:52,935 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-21 02:03:52,936 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-21 02:03:52,936 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-21 02:03:52,937 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-21 02:03:52,937 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-21 02:03:52,937 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-21 02:03:52,937 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-21 02:03:52,937 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-21 02:03:52,937 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-21 02:03:52,938 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-21 02:03:52,938 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-21 02:03:52,938 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-21 02:03:52,938 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-21 02:03:52,939 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-21 02:03:52,939 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-21 02:03:52,939 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-21 02:03:52,939 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-21 02:03:52,940 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-21 02:03:52,940 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-21 02:03:52,940 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-21 02:03:52,940 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-21 02:03:52,940 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-21 02:03:52,940 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-21 02:03:52,940 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-21 02:03:52,941 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-21 02:03:52,941 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-21 02:03:52,941 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> false [2023-12-21 02:03:53,150 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-21 02:03:53,169 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-21 02:03:53,170 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-21 02:03:53,171 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-21 02:03:53,171 INFO L274 PluginConnector]: CDTParser initialized [2023-12-21 02:03:53,172 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_variablewrapping_wrapper-ap_file-71.i [2023-12-21 02:03:54,261 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-21 02:03:54,472 INFO L384 CDTParser]: Found 1 translation units. [2023-12-21 02:03:54,473 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_variablewrapping_wrapper-ap_file-71.i [2023-12-21 02:03:54,485 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cec34f2d5/41d618e3d0fd4dfcb93d3dfe7c6d9682/FLAGeb1692265 [2023-12-21 02:03:54,497 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cec34f2d5/41d618e3d0fd4dfcb93d3dfe7c6d9682 [2023-12-21 02:03:54,499 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-21 02:03:54,500 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-21 02:03:54,501 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-21 02:03:54,501 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-21 02:03:54,510 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-21 02:03:54,510 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 02:03:54" (1/1) ... [2023-12-21 02:03:54,511 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@59e09748 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 02:03:54, skipping insertion in model container [2023-12-21 02:03:54,511 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 02:03:54" (1/1) ... [2023-12-21 02:03:54,546 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-21 02:03:54,650 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_variablewrapping_wrapper-ap_file-71.i[917,930] [2023-12-21 02:03:54,705 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-21 02:03:54,713 INFO L202 MainTranslator]: Completed pre-run [2023-12-21 02:03:54,720 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_variablewrapping_wrapper-ap_file-71.i[917,930] [2023-12-21 02:03:54,753 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-21 02:03:54,767 INFO L206 MainTranslator]: Completed translation [2023-12-21 02:03:54,767 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 02:03:54 WrapperNode [2023-12-21 02:03:54,767 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-21 02:03:54,768 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-21 02:03:54,768 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-21 02:03:54,768 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-21 02:03:54,774 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 02:03:54" (1/1) ... [2023-12-21 02:03:54,783 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 02:03:54" (1/1) ... [2023-12-21 02:03:54,828 INFO L138 Inliner]: procedures = 26, calls = 173, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 509 [2023-12-21 02:03:54,829 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-21 02:03:54,829 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-21 02:03:54,829 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-21 02:03:54,829 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-21 02:03:54,837 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 02:03:54" (1/1) ... [2023-12-21 02:03:54,837 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 02:03:54" (1/1) ... [2023-12-21 02:03:54,843 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 02:03:54" (1/1) ... [2023-12-21 02:03:54,876 INFO L175 MemorySlicer]: Split 138 memory accesses to 6 slices as follows [2, 20, 16, 85, 7, 8]. 62 percent of accesses are in the largest equivalence class. The 16 initializations are split as follows [2, 3, 3, 5, 1, 2]. The 18 writes are split as follows [0, 3, 3, 8, 1, 3]. [2023-12-21 02:03:54,876 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 02:03:54" (1/1) ... [2023-12-21 02:03:54,877 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 02:03:54" (1/1) ... [2023-12-21 02:03:54,888 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 02:03:54" (1/1) ... [2023-12-21 02:03:54,906 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 02:03:54" (1/1) ... [2023-12-21 02:03:54,908 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 02:03:54" (1/1) ... [2023-12-21 02:03:54,910 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 02:03:54" (1/1) ... [2023-12-21 02:03:54,914 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-21 02:03:54,914 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-21 02:03:54,914 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-21 02:03:54,914 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-21 02:03:54,915 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 02:03:54" (1/1) ... [2023-12-21 02:03:54,933 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-21 02:03:54,943 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 02:03:54,981 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 02:03:54,990 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 02:03:55,006 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-21 02:03:55,006 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2023-12-21 02:03:55,006 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2023-12-21 02:03:55,006 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2023-12-21 02:03:55,006 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2023-12-21 02:03:55,007 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2023-12-21 02:03:55,008 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2023-12-21 02:03:55,008 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2023-12-21 02:03:55,008 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2023-12-21 02:03:55,008 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2023-12-21 02:03:55,008 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2023-12-21 02:03:55,008 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2023-12-21 02:03:55,009 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2023-12-21 02:03:55,009 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-21 02:03:55,009 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-21 02:03:55,009 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-21 02:03:55,009 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-12-21 02:03:55,009 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2023-12-21 02:03:55,009 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2023-12-21 02:03:55,009 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2023-12-21 02:03:55,010 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2023-12-21 02:03:55,010 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-21 02:03:55,010 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-21 02:03:55,150 INFO L241 CfgBuilder]: Building ICFG [2023-12-21 02:03:55,154 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-21 02:03:55,565 INFO L282 CfgBuilder]: Performing block encoding [2023-12-21 02:03:55,593 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-21 02:03:55,593 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-21 02:03:55,594 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 02:03:55 BoogieIcfgContainer [2023-12-21 02:03:55,594 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-21 02:03:55,595 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-21 02:03:55,595 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-21 02:03:55,597 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-21 02:03:55,597 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.12 02:03:54" (1/3) ... [2023-12-21 02:03:55,598 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e0f0c09 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 02:03:55, skipping insertion in model container [2023-12-21 02:03:55,598 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 02:03:54" (2/3) ... [2023-12-21 02:03:55,598 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e0f0c09 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 02:03:55, skipping insertion in model container [2023-12-21 02:03:55,598 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 02:03:55" (3/3) ... [2023-12-21 02:03:55,599 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-ap_file-71.i [2023-12-21 02:03:55,610 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-21 02:03:55,610 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-21 02:03:55,649 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-21 02:03:55,654 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;@47346f8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-21 02:03:55,654 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-21 02:03:55,657 INFO L276 IsEmpty]: Start isEmpty. Operand has 98 states, 76 states have (on average 1.4210526315789473) internal successors, (108), 77 states have internal predecessors, (108), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2023-12-21 02:03:55,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2023-12-21 02:03:55,675 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 02:03:55,675 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:03:55,676 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 02:03:55,679 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 02:03:55,679 INFO L85 PathProgramCache]: Analyzing trace with hash 139059872, now seen corresponding path program 1 times [2023-12-21 02:03:55,685 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 02:03:55,685 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [857326448] [2023-12-21 02:03:55,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:03:55,686 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 02:03:55,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:55,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 02:03:55,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:55,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 02:03:55,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:55,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 02:03:55,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:55,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 02:03:55,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:55,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-21 02:03:55,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:55,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 02:03:55,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:55,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-21 02:03:55,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:55,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 02:03:55,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:55,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 02:03:55,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:55,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 02:03:55,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:55,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-21 02:03:55,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:55,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 02:03:55,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:55,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-21 02:03:55,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:55,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-21 02:03:55,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:56,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-21 02:03:56,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:56,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-21 02:03:56,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:56,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-21 02:03:56,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:56,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-21 02:03:56,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:56,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-21 02:03:56,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:56,015 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2023-12-21 02:03:56,016 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 02:03:56,016 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [857326448] [2023-12-21 02:03:56,016 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [857326448] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 02:03:56,017 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 02:03:56,017 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-21 02:03:56,018 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [131850720] [2023-12-21 02:03:56,018 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 02:03:56,021 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-21 02:03:56,022 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 02:03:56,049 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-21 02:03:56,050 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-21 02:03:56,052 INFO L87 Difference]: Start difference. First operand has 98 states, 76 states have (on average 1.4210526315789473) internal successors, (108), 77 states have internal predecessors, (108), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) Second operand has 2 states, 2 states have (on average 23.5) internal successors, (47), 2 states have internal predecessors, (47), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2023-12-21 02:03:56,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 02:03:56,107 INFO L93 Difference]: Finished difference Result 193 states and 309 transitions. [2023-12-21 02:03:56,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-21 02:03:56,109 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 23.5) internal successors, (47), 2 states have internal predecessors, (47), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) Word has length 139 [2023-12-21 02:03:56,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 02:03:56,117 INFO L225 Difference]: With dead ends: 193 [2023-12-21 02:03:56,117 INFO L226 Difference]: Without dead ends: 96 [2023-12-21 02:03:56,121 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-21 02:03:56,124 INFO L413 NwaCegarLoop]: 135 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 135 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 02:03:56,125 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 135 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 02:03:56,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2023-12-21 02:03:56,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 96. [2023-12-21 02:03:56,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96 states, 75 states have (on average 1.3466666666666667) internal successors, (101), 75 states have internal predecessors, (101), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2023-12-21 02:03:56,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 139 transitions. [2023-12-21 02:03:56,168 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 139 transitions. Word has length 139 [2023-12-21 02:03:56,168 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 02:03:56,169 INFO L495 AbstractCegarLoop]: Abstraction has 96 states and 139 transitions. [2023-12-21 02:03:56,169 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 23.5) internal successors, (47), 2 states have internal predecessors, (47), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2023-12-21 02:03:56,169 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 139 transitions. [2023-12-21 02:03:56,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2023-12-21 02:03:56,173 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 02:03:56,173 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:03:56,173 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-21 02:03:56,173 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 02:03:56,173 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 02:03:56,174 INFO L85 PathProgramCache]: Analyzing trace with hash 1954629318, now seen corresponding path program 1 times [2023-12-21 02:03:56,174 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 02:03:56,174 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1438229529] [2023-12-21 02:03:56,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:03:56,174 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 02:03:56,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:56,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 02:03:56,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:56,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 02:03:56,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:56,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 02:03:56,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:56,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 02:03:56,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:56,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-21 02:03:56,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:56,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 02:03:56,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:56,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-21 02:03:56,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:56,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 02:03:56,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:56,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 02:03:56,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:56,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 02:03:56,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:56,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-21 02:03:56,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:56,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 02:03:56,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:56,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-21 02:03:56,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:56,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-21 02:03:56,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:56,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-21 02:03:56,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:56,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-21 02:03:56,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:56,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-21 02:03:56,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:56,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-21 02:03:56,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:56,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-21 02:03:56,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:56,481 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2023-12-21 02:03:56,481 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 02:03:56,481 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1438229529] [2023-12-21 02:03:56,481 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1438229529] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 02:03:56,481 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 02:03:56,481 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-21 02:03:56,482 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1164909590] [2023-12-21 02:03:56,482 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 02:03:56,483 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-21 02:03:56,483 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 02:03:56,485 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-21 02:03:56,485 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-21 02:03:56,485 INFO L87 Difference]: Start difference. First operand 96 states and 139 transitions. Second operand has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-12-21 02:03:56,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 02:03:56,549 INFO L93 Difference]: Finished difference Result 199 states and 288 transitions. [2023-12-21 02:03:56,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-21 02:03:56,550 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 139 [2023-12-21 02:03:56,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 02:03:56,551 INFO L225 Difference]: With dead ends: 199 [2023-12-21 02:03:56,551 INFO L226 Difference]: Without dead ends: 104 [2023-12-21 02:03:56,552 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 40 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 02:03:56,552 INFO L413 NwaCegarLoop]: 132 mSDtfsCounter, 12 mSDsluCounter, 261 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 393 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 02:03:56,553 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 393 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 02:03:56,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2023-12-21 02:03:56,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 98. [2023-12-21 02:03:56,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98 states, 77 states have (on average 1.3376623376623376) internal successors, (103), 77 states have internal predecessors, (103), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2023-12-21 02:03:56,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 141 transitions. [2023-12-21 02:03:56,560 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 141 transitions. Word has length 139 [2023-12-21 02:03:56,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 02:03:56,561 INFO L495 AbstractCegarLoop]: Abstraction has 98 states and 141 transitions. [2023-12-21 02:03:56,561 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-12-21 02:03:56,561 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 141 transitions. [2023-12-21 02:03:56,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2023-12-21 02:03:56,562 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 02:03:56,562 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:03:56,563 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-21 02:03:56,563 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 02:03:56,563 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 02:03:56,563 INFO L85 PathProgramCache]: Analyzing trace with hash 2011887620, now seen corresponding path program 1 times [2023-12-21 02:03:56,563 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 02:03:56,563 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [875187690] [2023-12-21 02:03:56,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:03:56,564 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 02:03:56,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:56,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 02:03:56,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:56,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 02:03:56,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:56,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 02:03:56,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:56,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 02:03:56,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:56,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-21 02:03:56,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:56,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 02:03:56,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:56,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-21 02:03:56,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:56,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 02:03:56,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:56,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 02:03:56,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:56,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 02:03:56,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:56,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-21 02:03:56,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:56,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 02:03:56,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:56,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-21 02:03:56,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:56,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-21 02:03:56,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:56,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-21 02:03:56,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:56,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-21 02:03:56,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:56,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-21 02:03:56,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:56,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-21 02:03:56,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:56,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-21 02:03:56,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:56,759 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2023-12-21 02:03:56,759 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 02:03:56,760 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [875187690] [2023-12-21 02:03:56,760 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [875187690] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 02:03:56,761 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 02:03:56,761 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-21 02:03:56,761 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [768746261] [2023-12-21 02:03:56,761 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 02:03:56,762 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-21 02:03:56,763 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 02:03:56,763 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-21 02:03:56,766 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-21 02:03:56,766 INFO L87 Difference]: Start difference. First operand 98 states and 141 transitions. Second operand has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-12-21 02:03:56,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 02:03:56,814 INFO L93 Difference]: Finished difference Result 199 states and 286 transitions. [2023-12-21 02:03:56,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-21 02:03:56,814 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 139 [2023-12-21 02:03:56,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 02:03:56,815 INFO L225 Difference]: With dead ends: 199 [2023-12-21 02:03:56,815 INFO L226 Difference]: Without dead ends: 102 [2023-12-21 02:03:56,835 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 40 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 02:03:56,837 INFO L413 NwaCegarLoop]: 133 mSDtfsCounter, 3 mSDsluCounter, 261 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 394 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 02:03:56,839 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 394 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 02:03:56,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2023-12-21 02:03:56,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 100. [2023-12-21 02:03:56,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100 states, 79 states have (on average 1.3291139240506329) internal successors, (105), 79 states have internal predecessors, (105), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2023-12-21 02:03:56,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 143 transitions. [2023-12-21 02:03:56,855 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 143 transitions. Word has length 139 [2023-12-21 02:03:56,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 02:03:56,855 INFO L495 AbstractCegarLoop]: Abstraction has 100 states and 143 transitions. [2023-12-21 02:03:56,855 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-12-21 02:03:56,856 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 143 transitions. [2023-12-21 02:03:56,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2023-12-21 02:03:56,857 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 02:03:56,857 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:03:56,857 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-21 02:03:56,857 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 02:03:56,858 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 02:03:56,858 INFO L85 PathProgramCache]: Analyzing trace with hash 2011947202, now seen corresponding path program 1 times [2023-12-21 02:03:56,858 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 02:03:56,858 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2137489519] [2023-12-21 02:03:56,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:03:56,858 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 02:03:56,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:57,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 02:03:57,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:57,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 02:03:57,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:57,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 02:03:57,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:57,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 02:03:57,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:57,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-21 02:03:57,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:57,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 02:03:57,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:57,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-21 02:03:57,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:57,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 02:03:57,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:57,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 02:03:57,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:57,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 02:03:57,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:57,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-21 02:03:57,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:57,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 02:03:57,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:57,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-21 02:03:57,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:57,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-21 02:03:57,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:57,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-21 02:03:57,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:57,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-21 02:03:57,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:57,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-21 02:03:57,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:57,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-21 02:03:57,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:57,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-21 02:03:57,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:57,200 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2023-12-21 02:03:57,200 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 02:03:57,200 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2137489519] [2023-12-21 02:03:57,200 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2137489519] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 02:03:57,201 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 02:03:57,201 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-21 02:03:57,201 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1801124458] [2023-12-21 02:03:57,201 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 02:03:57,202 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 02:03:57,203 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 02:03:57,203 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 02:03:57,203 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-21 02:03:57,203 INFO L87 Difference]: Start difference. First operand 100 states and 143 transitions. Second operand has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-12-21 02:03:57,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 02:03:57,279 INFO L93 Difference]: Finished difference Result 247 states and 352 transitions. [2023-12-21 02:03:57,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-21 02:03:57,279 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 139 [2023-12-21 02:03:57,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 02:03:57,283 INFO L225 Difference]: With dead ends: 247 [2023-12-21 02:03:57,283 INFO L226 Difference]: Without dead ends: 148 [2023-12-21 02:03:57,285 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-12-21 02:03:57,291 INFO L413 NwaCegarLoop]: 181 mSDtfsCounter, 91 mSDsluCounter, 446 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 627 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 02:03:57,291 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [91 Valid, 627 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 02:03:57,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2023-12-21 02:03:57,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 102. [2023-12-21 02:03:57,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102 states, 81 states have (on average 1.3209876543209877) internal successors, (107), 81 states have internal predecessors, (107), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2023-12-21 02:03:57,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 145 transitions. [2023-12-21 02:03:57,303 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 145 transitions. Word has length 139 [2023-12-21 02:03:57,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 02:03:57,303 INFO L495 AbstractCegarLoop]: Abstraction has 102 states and 145 transitions. [2023-12-21 02:03:57,304 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-12-21 02:03:57,304 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 145 transitions. [2023-12-21 02:03:57,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2023-12-21 02:03:57,305 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 02:03:57,305 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:03:57,305 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-21 02:03:57,305 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 02:03:57,306 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 02:03:57,306 INFO L85 PathProgramCache]: Analyzing trace with hash -230790985, now seen corresponding path program 1 times [2023-12-21 02:03:57,306 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 02:03:57,306 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1764235796] [2023-12-21 02:03:57,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:03:57,306 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 02:03:57,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:57,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 02:03:57,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:57,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 02:03:57,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:57,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 02:03:57,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:57,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 02:03:57,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:57,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-21 02:03:57,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:57,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 02:03:57,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:57,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-21 02:03:57,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:57,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 02:03:57,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:57,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 02:03:57,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:57,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 02:03:57,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:57,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-21 02:03:57,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:57,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 02:03:57,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:57,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-21 02:03:57,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:57,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-21 02:03:57,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:57,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-21 02:03:57,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:57,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-21 02:03:57,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:57,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-21 02:03:57,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:57,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-21 02:03:57,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:57,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-21 02:03:57,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:57,787 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2023-12-21 02:03:57,788 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 02:03:57,788 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1764235796] [2023-12-21 02:03:57,788 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1764235796] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 02:03:57,788 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 02:03:57,788 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 02:03:57,788 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1275982844] [2023-12-21 02:03:57,789 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 02:03:57,789 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-21 02:03:57,789 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 02:03:57,790 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-21 02:03:57,790 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-12-21 02:03:57,790 INFO L87 Difference]: Start difference. First operand 102 states and 145 transitions. Second operand has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 7 states have internal predecessors, (48), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-12-21 02:03:57,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 02:03:57,916 INFO L93 Difference]: Finished difference Result 297 states and 419 transitions. [2023-12-21 02:03:57,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-21 02:03:57,916 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 7 states have internal predecessors, (48), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 140 [2023-12-21 02:03:57,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 02:03:57,918 INFO L225 Difference]: With dead ends: 297 [2023-12-21 02:03:57,918 INFO L226 Difference]: Without dead ends: 196 [2023-12-21 02:03:57,919 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2023-12-21 02:03:57,919 INFO L413 NwaCegarLoop]: 182 mSDtfsCounter, 149 mSDsluCounter, 621 mSDsCounter, 0 mSdLazyCounter, 97 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 149 SdHoareTripleChecker+Valid, 803 SdHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 97 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 02:03:57,919 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [149 Valid, 803 Invalid, 101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 97 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 02:03:57,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 196 states. [2023-12-21 02:03:57,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 196 to 114. [2023-12-21 02:03:57,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 114 states, 93 states have (on average 1.3440860215053763) internal successors, (125), 93 states have internal predecessors, (125), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2023-12-21 02:03:57,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 163 transitions. [2023-12-21 02:03:57,934 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 163 transitions. Word has length 140 [2023-12-21 02:03:57,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 02:03:57,936 INFO L495 AbstractCegarLoop]: Abstraction has 114 states and 163 transitions. [2023-12-21 02:03:57,936 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 7 states have internal predecessors, (48), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-12-21 02:03:57,936 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 163 transitions. [2023-12-21 02:03:57,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2023-12-21 02:03:57,941 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 02:03:57,941 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:03:57,941 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-21 02:03:57,941 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 02:03:57,942 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 02:03:57,942 INFO L85 PathProgramCache]: Analyzing trace with hash -1580659255, now seen corresponding path program 1 times [2023-12-21 02:03:57,942 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 02:03:57,942 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2124429492] [2023-12-21 02:03:57,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:03:57,942 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 02:03:58,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:58,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 02:03:58,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:58,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 02:03:58,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:58,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 02:03:58,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:58,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 02:03:58,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:58,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-21 02:03:58,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:58,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 02:03:58,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:58,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-21 02:03:58,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:58,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 02:03:58,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:58,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 02:03:58,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:58,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 02:03:58,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:58,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-21 02:03:58,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:58,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 02:03:58,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:58,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-21 02:03:58,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:58,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-21 02:03:58,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:58,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-21 02:03:58,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:58,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-21 02:03:58,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:58,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-21 02:03:58,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:58,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-21 02:03:58,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:58,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-21 02:03:58,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:58,609 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2023-12-21 02:03:58,609 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 02:03:58,609 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2124429492] [2023-12-21 02:03:58,609 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2124429492] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 02:03:58,609 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 02:03:58,609 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-21 02:03:58,609 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1715916748] [2023-12-21 02:03:58,609 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 02:03:58,610 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-21 02:03:58,610 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 02:03:58,610 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-21 02:03:58,610 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2023-12-21 02:03:58,611 INFO L87 Difference]: Start difference. First operand 114 states and 163 transitions. Second operand has 9 states, 9 states have (on average 5.444444444444445) internal successors, (49), 9 states have internal predecessors, (49), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2023-12-21 02:03:59,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 02:03:59,051 INFO L93 Difference]: Finished difference Result 323 states and 457 transitions. [2023-12-21 02:03:59,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-21 02:03:59,053 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.444444444444445) internal successors, (49), 9 states have internal predecessors, (49), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 141 [2023-12-21 02:03:59,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 02:03:59,054 INFO L225 Difference]: With dead ends: 323 [2023-12-21 02:03:59,054 INFO L226 Difference]: Without dead ends: 210 [2023-12-21 02:03:59,055 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=69, Invalid=141, Unknown=0, NotChecked=0, Total=210 [2023-12-21 02:03:59,055 INFO L413 NwaCegarLoop]: 176 mSDtfsCounter, 327 mSDsluCounter, 550 mSDsCounter, 0 mSdLazyCounter, 359 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 327 SdHoareTripleChecker+Valid, 726 SdHoareTripleChecker+Invalid, 404 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 359 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-21 02:03:59,055 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [327 Valid, 726 Invalid, 404 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 359 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-21 02:03:59,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 210 states. [2023-12-21 02:03:59,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 210 to 187. [2023-12-21 02:03:59,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 187 states, 154 states have (on average 1.3311688311688312) internal successors, (205), 155 states have internal predecessors, (205), 30 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (30), 29 states have call predecessors, (30), 30 states have call successors, (30) [2023-12-21 02:03:59,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 187 states and 265 transitions. [2023-12-21 02:03:59,071 INFO L78 Accepts]: Start accepts. Automaton has 187 states and 265 transitions. Word has length 141 [2023-12-21 02:03:59,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 02:03:59,072 INFO L495 AbstractCegarLoop]: Abstraction has 187 states and 265 transitions. [2023-12-21 02:03:59,072 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.444444444444445) internal successors, (49), 9 states have internal predecessors, (49), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2023-12-21 02:03:59,072 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 265 transitions. [2023-12-21 02:03:59,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2023-12-21 02:03:59,073 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 02:03:59,073 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:03:59,073 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-12-21 02:03:59,074 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 02:03:59,074 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 02:03:59,074 INFO L85 PathProgramCache]: Analyzing trace with hash -1898131422, now seen corresponding path program 1 times [2023-12-21 02:03:59,074 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 02:03:59,074 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1152489972] [2023-12-21 02:03:59,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:03:59,075 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 02:03:59,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:59,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 02:03:59,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:59,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 02:03:59,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:59,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 02:03:59,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:59,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 02:03:59,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:59,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-21 02:03:59,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:59,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 02:03:59,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:59,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-21 02:03:59,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:59,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 02:03:59,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:59,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 02:03:59,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:59,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 02:03:59,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:59,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-21 02:03:59,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:59,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 02:03:59,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:59,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-21 02:03:59,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:59,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-21 02:03:59,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:59,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-21 02:03:59,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:59,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-21 02:03:59,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:59,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-21 02:03:59,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:59,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-21 02:03:59,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:59,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-21 02:03:59,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:59,254 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2023-12-21 02:03:59,254 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 02:03:59,254 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1152489972] [2023-12-21 02:03:59,254 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1152489972] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 02:03:59,254 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 02:03:59,254 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-21 02:03:59,254 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2140450375] [2023-12-21 02:03:59,254 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 02:03:59,255 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 02:03:59,255 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 02:03:59,255 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 02:03:59,255 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-21 02:03:59,256 INFO L87 Difference]: Start difference. First operand 187 states and 265 transitions. Second operand has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-12-21 02:03:59,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 02:03:59,312 INFO L93 Difference]: Finished difference Result 420 states and 590 transitions. [2023-12-21 02:03:59,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-21 02:03:59,313 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 141 [2023-12-21 02:03:59,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 02:03:59,316 INFO L225 Difference]: With dead ends: 420 [2023-12-21 02:03:59,316 INFO L226 Difference]: Without dead ends: 234 [2023-12-21 02:03:59,317 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-21 02:03:59,318 INFO L413 NwaCegarLoop]: 150 mSDtfsCounter, 98 mSDsluCounter, 389 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 539 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 02:03:59,318 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [98 Valid, 539 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 02:03:59,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 234 states. [2023-12-21 02:03:59,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 234 to 181. [2023-12-21 02:03:59,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 181 states, 148 states have (on average 1.3108108108108107) internal successors, (194), 149 states have internal predecessors, (194), 30 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (30), 29 states have call predecessors, (30), 30 states have call successors, (30) [2023-12-21 02:03:59,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 254 transitions. [2023-12-21 02:03:59,331 INFO L78 Accepts]: Start accepts. Automaton has 181 states and 254 transitions. Word has length 141 [2023-12-21 02:03:59,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 02:03:59,331 INFO L495 AbstractCegarLoop]: Abstraction has 181 states and 254 transitions. [2023-12-21 02:03:59,331 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-12-21 02:03:59,332 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 254 transitions. [2023-12-21 02:03:59,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2023-12-21 02:03:59,332 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 02:03:59,332 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:03:59,333 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-12-21 02:03:59,333 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 02:03:59,333 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 02:03:59,333 INFO L85 PathProgramCache]: Analyzing trace with hash -155774261, now seen corresponding path program 1 times [2023-12-21 02:03:59,333 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 02:03:59,333 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [792633969] [2023-12-21 02:03:59,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:03:59,333 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 02:03:59,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:59,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 02:03:59,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:59,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 02:03:59,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:59,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 02:03:59,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:59,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 02:03:59,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:59,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-21 02:03:59,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:59,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 02:03:59,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:59,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-21 02:03:59,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:59,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 02:03:59,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:59,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 02:03:59,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:59,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 02:03:59,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:59,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-21 02:03:59,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:59,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 02:03:59,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:59,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-21 02:03:59,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:59,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-21 02:03:59,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:59,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-21 02:03:59,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:59,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-21 02:03:59,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:59,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-21 02:03:59,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:59,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-21 02:03:59,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:59,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-21 02:03:59,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:59,539 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2023-12-21 02:03:59,539 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 02:03:59,539 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [792633969] [2023-12-21 02:03:59,539 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [792633969] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 02:03:59,539 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 02:03:59,539 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-21 02:03:59,540 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1813550710] [2023-12-21 02:03:59,540 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 02:03:59,540 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 02:03:59,540 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 02:03:59,540 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 02:03:59,541 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-21 02:03:59,541 INFO L87 Difference]: Start difference. First operand 181 states and 254 transitions. Second operand has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-12-21 02:03:59,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 02:03:59,613 INFO L93 Difference]: Finished difference Result 386 states and 538 transitions. [2023-12-21 02:03:59,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-21 02:03:59,613 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 142 [2023-12-21 02:03:59,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 02:03:59,614 INFO L225 Difference]: With dead ends: 386 [2023-12-21 02:03:59,614 INFO L226 Difference]: Without dead ends: 206 [2023-12-21 02:03:59,615 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-21 02:03:59,616 INFO L413 NwaCegarLoop]: 171 mSDtfsCounter, 88 mSDsluCounter, 401 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 572 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 02:03:59,616 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [88 Valid, 572 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 02:03:59,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 206 states. [2023-12-21 02:03:59,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 206 to 179. [2023-12-21 02:03:59,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 179 states, 146 states have (on average 1.2945205479452055) internal successors, (189), 147 states have internal predecessors, (189), 30 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (30), 29 states have call predecessors, (30), 30 states have call successors, (30) [2023-12-21 02:03:59,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 179 states and 249 transitions. [2023-12-21 02:03:59,627 INFO L78 Accepts]: Start accepts. Automaton has 179 states and 249 transitions. Word has length 142 [2023-12-21 02:03:59,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 02:03:59,627 INFO L495 AbstractCegarLoop]: Abstraction has 179 states and 249 transitions. [2023-12-21 02:03:59,627 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-12-21 02:03:59,627 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states and 249 transitions. [2023-12-21 02:03:59,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2023-12-21 02:03:59,628 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 02:03:59,628 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:03:59,629 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-12-21 02:03:59,629 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 02:03:59,629 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 02:03:59,629 INFO L85 PathProgramCache]: Analyzing trace with hash 908373051, now seen corresponding path program 1 times [2023-12-21 02:03:59,629 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 02:03:59,629 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1761175607] [2023-12-21 02:03:59,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:03:59,629 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 02:03:59,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:01,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 02:04:01,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:01,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 02:04:01,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:01,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 02:04:01,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:01,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 02:04:01,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:01,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-21 02:04:01,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:01,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 02:04:01,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:01,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-21 02:04:01,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:01,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 02:04:01,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:01,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 02:04:01,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:01,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 02:04:01,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:01,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-21 02:04:01,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:01,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 02:04:01,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:01,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-21 02:04:01,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:01,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-21 02:04:01,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:01,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-21 02:04:01,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:01,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-21 02:04:01,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:01,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-21 02:04:01,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:01,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-21 02:04:01,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:01,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-21 02:04:01,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:01,311 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2023-12-21 02:04:01,311 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 02:04:01,311 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1761175607] [2023-12-21 02:04:01,311 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1761175607] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 02:04:01,311 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 02:04:01,311 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2023-12-21 02:04:01,311 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2025346945] [2023-12-21 02:04:01,311 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 02:04:01,312 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-12-21 02:04:01,312 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 02:04:01,328 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-12-21 02:04:01,328 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2023-12-21 02:04:01,329 INFO L87 Difference]: Start difference. First operand 179 states and 249 transitions. Second operand has 14 states, 13 states have (on average 3.8461538461538463) internal successors, (50), 13 states have internal predecessors, (50), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2023-12-21 02:04:04,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 02:04:04,825 INFO L93 Difference]: Finished difference Result 558 states and 767 transitions. [2023-12-21 02:04:04,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-21 02:04:04,825 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 3.8461538461538463) internal successors, (50), 13 states have internal predecessors, (50), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) Word has length 142 [2023-12-21 02:04:04,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 02:04:04,827 INFO L225 Difference]: With dead ends: 558 [2023-12-21 02:04:04,827 INFO L226 Difference]: Without dead ends: 380 [2023-12-21 02:04:04,827 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 97 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=146, Invalid=504, Unknown=0, NotChecked=0, Total=650 [2023-12-21 02:04:04,828 INFO L413 NwaCegarLoop]: 96 mSDtfsCounter, 611 mSDsluCounter, 553 mSDsCounter, 0 mSdLazyCounter, 764 mSolverCounterSat, 144 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 611 SdHoareTripleChecker+Valid, 649 SdHoareTripleChecker+Invalid, 908 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 144 IncrementalHoareTripleChecker+Valid, 764 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2023-12-21 02:04:04,828 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [611 Valid, 649 Invalid, 908 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [144 Valid, 764 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2023-12-21 02:04:04,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 380 states. [2023-12-21 02:04:04,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 380 to 196. [2023-12-21 02:04:04,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 196 states, 163 states have (on average 1.3067484662576687) internal successors, (213), 164 states have internal predecessors, (213), 30 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (30), 29 states have call predecessors, (30), 30 states have call successors, (30) [2023-12-21 02:04:04,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 196 states to 196 states and 273 transitions. [2023-12-21 02:04:04,844 INFO L78 Accepts]: Start accepts. Automaton has 196 states and 273 transitions. Word has length 142 [2023-12-21 02:04:04,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 02:04:04,845 INFO L495 AbstractCegarLoop]: Abstraction has 196 states and 273 transitions. [2023-12-21 02:04:04,845 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 3.8461538461538463) internal successors, (50), 13 states have internal predecessors, (50), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2023-12-21 02:04:04,845 INFO L276 IsEmpty]: Start isEmpty. Operand 196 states and 273 transitions. [2023-12-21 02:04:04,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2023-12-21 02:04:04,846 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 02:04:04,846 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:04:04,846 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-12-21 02:04:04,846 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 02:04:04,846 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 02:04:04,846 INFO L85 PathProgramCache]: Analyzing trace with hash 1919490301, now seen corresponding path program 1 times [2023-12-21 02:04:04,846 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 02:04:04,847 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [345561767] [2023-12-21 02:04:04,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:04:04,847 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 02:04:04,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:05,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 02:04:05,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:05,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 02:04:05,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:05,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 02:04:05,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:05,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 02:04:05,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:05,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-21 02:04:05,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:05,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 02:04:05,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:05,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-21 02:04:05,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:05,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 02:04:05,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:05,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 02:04:05,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:05,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 02:04:05,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:05,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-21 02:04:05,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:05,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 02:04:05,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:05,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-21 02:04:05,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:05,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-21 02:04:05,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:05,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-21 02:04:05,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:05,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-21 02:04:05,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:05,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-21 02:04:05,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:05,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-21 02:04:05,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:05,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-21 02:04:05,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:05,378 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2023-12-21 02:04:05,378 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 02:04:05,378 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [345561767] [2023-12-21 02:04:05,378 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [345561767] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 02:04:05,378 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 02:04:05,378 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-12-21 02:04:05,378 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [265435694] [2023-12-21 02:04:05,379 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 02:04:05,379 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-21 02:04:05,379 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 02:04:05,380 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-21 02:04:05,380 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2023-12-21 02:04:05,380 INFO L87 Difference]: Start difference. First operand 196 states and 273 transitions. Second operand has 11 states, 11 states have (on average 4.545454545454546) internal successors, (50), 11 states have internal predecessors, (50), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2023-12-21 02:04:05,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 02:04:05,848 INFO L93 Difference]: Finished difference Result 472 states and 653 transitions. [2023-12-21 02:04:05,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-21 02:04:05,848 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 4.545454545454546) internal successors, (50), 11 states have internal predecessors, (50), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 142 [2023-12-21 02:04:05,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 02:04:05,850 INFO L225 Difference]: With dead ends: 472 [2023-12-21 02:04:05,850 INFO L226 Difference]: Without dead ends: 277 [2023-12-21 02:04:05,850 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=97, Invalid=245, Unknown=0, NotChecked=0, Total=342 [2023-12-21 02:04:05,851 INFO L413 NwaCegarLoop]: 150 mSDtfsCounter, 294 mSDsluCounter, 708 mSDsCounter, 0 mSdLazyCounter, 492 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 294 SdHoareTripleChecker+Valid, 858 SdHoareTripleChecker+Invalid, 515 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 492 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-21 02:04:05,851 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [294 Valid, 858 Invalid, 515 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 492 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-21 02:04:05,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 277 states. [2023-12-21 02:04:05,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 277 to 199. [2023-12-21 02:04:05,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 199 states, 166 states have (on average 1.3072289156626506) internal successors, (217), 167 states have internal predecessors, (217), 30 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (30), 29 states have call predecessors, (30), 30 states have call successors, (30) [2023-12-21 02:04:05,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 199 states and 277 transitions. [2023-12-21 02:04:05,872 INFO L78 Accepts]: Start accepts. Automaton has 199 states and 277 transitions. Word has length 142 [2023-12-21 02:04:05,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 02:04:05,873 INFO L495 AbstractCegarLoop]: Abstraction has 199 states and 277 transitions. [2023-12-21 02:04:05,873 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 4.545454545454546) internal successors, (50), 11 states have internal predecessors, (50), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2023-12-21 02:04:05,873 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 277 transitions. [2023-12-21 02:04:05,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2023-12-21 02:04:05,874 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 02:04:05,874 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:04:05,874 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-12-21 02:04:05,874 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 02:04:05,875 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 02:04:05,875 INFO L85 PathProgramCache]: Analyzing trace with hash 90724601, now seen corresponding path program 1 times [2023-12-21 02:04:05,875 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 02:04:05,875 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [998689358] [2023-12-21 02:04:05,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:04:05,875 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 02:04:05,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:06,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 02:04:06,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:06,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 02:04:06,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:06,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 02:04:06,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:06,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 02:04:06,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:06,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-21 02:04:06,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:06,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 02:04:06,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:06,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-21 02:04:06,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:06,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 02:04:06,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:06,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 02:04:06,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:06,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 02:04:06,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:06,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-21 02:04:06,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:06,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 02:04:06,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:06,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-21 02:04:06,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:06,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-21 02:04:06,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:06,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-21 02:04:06,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:06,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-21 02:04:06,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:06,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-21 02:04:06,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:06,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-21 02:04:06,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:06,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-21 02:04:06,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:06,981 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2023-12-21 02:04:06,981 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 02:04:06,981 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [998689358] [2023-12-21 02:04:06,981 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [998689358] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 02:04:06,981 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 02:04:06,981 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-12-21 02:04:06,981 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1660625063] [2023-12-21 02:04:06,981 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 02:04:06,982 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-12-21 02:04:06,982 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 02:04:06,982 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-12-21 02:04:06,982 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2023-12-21 02:04:06,982 INFO L87 Difference]: Start difference. First operand 199 states and 277 transitions. Second operand has 12 states, 11 states have (on average 4.545454545454546) internal successors, (50), 11 states have internal predecessors, (50), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2023-12-21 02:04:08,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 02:04:08,055 INFO L93 Difference]: Finished difference Result 499 states and 688 transitions. [2023-12-21 02:04:08,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-21 02:04:08,056 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 4.545454545454546) internal successors, (50), 11 states have internal predecessors, (50), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) Word has length 142 [2023-12-21 02:04:08,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 02:04:08,057 INFO L225 Difference]: With dead ends: 499 [2023-12-21 02:04:08,057 INFO L226 Difference]: Without dead ends: 301 [2023-12-21 02:04:08,058 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 40 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=101, Invalid=319, Unknown=0, NotChecked=0, Total=420 [2023-12-21 02:04:08,058 INFO L413 NwaCegarLoop]: 125 mSDtfsCounter, 243 mSDsluCounter, 592 mSDsCounter, 0 mSdLazyCounter, 713 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 243 SdHoareTripleChecker+Valid, 717 SdHoareTripleChecker+Invalid, 755 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 713 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-21 02:04:08,058 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [243 Valid, 717 Invalid, 755 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 713 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-21 02:04:08,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 301 states. [2023-12-21 02:04:08,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 301 to 193. [2023-12-21 02:04:08,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 193 states, 160 states have (on average 1.3) internal successors, (208), 161 states have internal predecessors, (208), 30 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (30), 29 states have call predecessors, (30), 30 states have call successors, (30) [2023-12-21 02:04:08,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 268 transitions. [2023-12-21 02:04:08,080 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 268 transitions. Word has length 142 [2023-12-21 02:04:08,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 02:04:08,080 INFO L495 AbstractCegarLoop]: Abstraction has 193 states and 268 transitions. [2023-12-21 02:04:08,080 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 4.545454545454546) internal successors, (50), 11 states have internal predecessors, (50), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2023-12-21 02:04:08,080 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 268 transitions. [2023-12-21 02:04:08,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2023-12-21 02:04:08,081 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 02:04:08,081 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:04:08,081 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-12-21 02:04:08,081 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 02:04:08,082 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 02:04:08,082 INFO L85 PathProgramCache]: Analyzing trace with hash 774359545, now seen corresponding path program 1 times [2023-12-21 02:04:08,082 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 02:04:08,082 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [403644819] [2023-12-21 02:04:08,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:04:08,082 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 02:04:08,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:08,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 02:04:08,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:08,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 02:04:08,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:08,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 02:04:08,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:08,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 02:04:08,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:08,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-21 02:04:08,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:08,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 02:04:08,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:08,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-21 02:04:08,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:08,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 02:04:08,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:08,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 02:04:08,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:08,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 02:04:08,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:08,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-21 02:04:08,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:08,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 02:04:08,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:08,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-21 02:04:08,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:08,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-21 02:04:08,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:08,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-21 02:04:08,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:08,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-21 02:04:08,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:08,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-21 02:04:08,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:08,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-21 02:04:08,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:08,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-21 02:04:08,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:08,286 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2023-12-21 02:04:08,287 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 02:04:08,287 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [403644819] [2023-12-21 02:04:08,287 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [403644819] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 02:04:08,287 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 02:04:08,287 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 02:04:08,287 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [225135920] [2023-12-21 02:04:08,287 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 02:04:08,287 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-21 02:04:08,287 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 02:04:08,288 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-21 02:04:08,288 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-21 02:04:08,288 INFO L87 Difference]: Start difference. First operand 193 states and 268 transitions. Second operand has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 7 states have internal predecessors, (50), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-12-21 02:04:08,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 02:04:08,465 INFO L93 Difference]: Finished difference Result 462 states and 638 transitions. [2023-12-21 02:04:08,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-21 02:04:08,466 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 7 states have internal predecessors, (50), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 142 [2023-12-21 02:04:08,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 02:04:08,467 INFO L225 Difference]: With dead ends: 462 [2023-12-21 02:04:08,467 INFO L226 Difference]: Without dead ends: 270 [2023-12-21 02:04:08,468 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=44, Invalid=88, Unknown=0, NotChecked=0, Total=132 [2023-12-21 02:04:08,468 INFO L413 NwaCegarLoop]: 187 mSDtfsCounter, 166 mSDsluCounter, 781 mSDsCounter, 0 mSdLazyCounter, 215 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 166 SdHoareTripleChecker+Valid, 968 SdHoareTripleChecker+Invalid, 216 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 215 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 02:04:08,468 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [166 Valid, 968 Invalid, 216 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 215 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 02:04:08,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 270 states. [2023-12-21 02:04:08,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 270 to 191. [2023-12-21 02:04:08,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 191 states, 158 states have (on average 1.3037974683544304) internal successors, (206), 159 states have internal predecessors, (206), 30 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (30), 29 states have call predecessors, (30), 30 states have call successors, (30) [2023-12-21 02:04:08,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 266 transitions. [2023-12-21 02:04:08,487 INFO L78 Accepts]: Start accepts. Automaton has 191 states and 266 transitions. Word has length 142 [2023-12-21 02:04:08,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 02:04:08,487 INFO L495 AbstractCegarLoop]: Abstraction has 191 states and 266 transitions. [2023-12-21 02:04:08,487 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 7 states have internal predecessors, (50), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-12-21 02:04:08,487 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 266 transitions. [2023-12-21 02:04:08,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2023-12-21 02:04:08,489 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 02:04:08,489 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:04:08,489 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-12-21 02:04:08,489 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 02:04:08,489 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 02:04:08,489 INFO L85 PathProgramCache]: Analyzing trace with hash 1785476795, now seen corresponding path program 1 times [2023-12-21 02:04:08,489 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 02:04:08,489 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1726194341] [2023-12-21 02:04:08,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:04:08,490 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 02:04:08,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:09,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 02:04:09,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:09,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 02:04:09,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:09,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 02:04:09,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:09,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 02:04:09,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:09,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-21 02:04:09,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:09,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 02:04:09,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:09,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-21 02:04:09,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:09,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 02:04:09,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:09,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 02:04:09,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:09,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 02:04:09,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:09,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-21 02:04:09,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:09,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 02:04:09,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:09,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-21 02:04:09,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:09,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-21 02:04:09,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:09,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-21 02:04:09,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:09,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-21 02:04:09,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:09,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-21 02:04:09,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:09,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-21 02:04:09,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:09,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-21 02:04:09,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:09,474 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2023-12-21 02:04:09,475 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 02:04:09,475 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1726194341] [2023-12-21 02:04:09,475 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1726194341] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 02:04:09,475 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 02:04:09,475 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2023-12-21 02:04:09,475 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [342390203] [2023-12-21 02:04:09,475 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 02:04:09,475 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-12-21 02:04:09,475 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 02:04:09,476 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-12-21 02:04:09,476 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2023-12-21 02:04:09,476 INFO L87 Difference]: Start difference. First operand 191 states and 266 transitions. Second operand has 13 states, 12 states have (on average 4.166666666666667) internal successors, (50), 12 states have internal predecessors, (50), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2023-12-21 02:04:11,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 02:04:11,476 INFO L93 Difference]: Finished difference Result 521 states and 716 transitions. [2023-12-21 02:04:11,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-21 02:04:11,478 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 4.166666666666667) internal successors, (50), 12 states have internal predecessors, (50), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) Word has length 142 [2023-12-21 02:04:11,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 02:04:11,479 INFO L225 Difference]: With dead ends: 521 [2023-12-21 02:04:11,479 INFO L226 Difference]: Without dead ends: 331 [2023-12-21 02:04:11,480 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 100 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=138, Invalid=462, Unknown=0, NotChecked=0, Total=600 [2023-12-21 02:04:11,480 INFO L413 NwaCegarLoop]: 168 mSDtfsCounter, 412 mSDsluCounter, 614 mSDsCounter, 0 mSdLazyCounter, 719 mSolverCounterSat, 93 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 412 SdHoareTripleChecker+Valid, 782 SdHoareTripleChecker+Invalid, 812 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 93 IncrementalHoareTripleChecker+Valid, 719 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-12-21 02:04:11,480 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [412 Valid, 782 Invalid, 812 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [93 Valid, 719 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-12-21 02:04:11,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 331 states. [2023-12-21 02:04:11,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 331 to 191. [2023-12-21 02:04:11,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 191 states, 158 states have (on average 1.2974683544303798) internal successors, (205), 159 states have internal predecessors, (205), 30 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (30), 29 states have call predecessors, (30), 30 states have call successors, (30) [2023-12-21 02:04:11,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 265 transitions. [2023-12-21 02:04:11,505 INFO L78 Accepts]: Start accepts. Automaton has 191 states and 265 transitions. Word has length 142 [2023-12-21 02:04:11,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 02:04:11,506 INFO L495 AbstractCegarLoop]: Abstraction has 191 states and 265 transitions. [2023-12-21 02:04:11,506 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 4.166666666666667) internal successors, (50), 12 states have internal predecessors, (50), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2023-12-21 02:04:11,506 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 265 transitions. [2023-12-21 02:04:11,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2023-12-21 02:04:11,507 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 02:04:11,507 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:04:11,507 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-12-21 02:04:11,507 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 02:04:11,508 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 02:04:11,508 INFO L85 PathProgramCache]: Analyzing trace with hash 427387022, now seen corresponding path program 1 times [2023-12-21 02:04:11,508 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 02:04:11,508 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [205233605] [2023-12-21 02:04:11,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:04:11,508 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 02:04:11,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:11,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 02:04:11,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:11,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 02:04:11,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:11,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 02:04:11,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:11,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 02:04:11,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:11,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-21 02:04:11,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:11,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 02:04:11,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:11,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-21 02:04:11,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:11,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 02:04:11,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:11,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 02:04:11,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:11,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 02:04:11,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:11,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-21 02:04:11,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:11,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 02:04:11,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:11,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-21 02:04:11,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:11,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-21 02:04:11,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:11,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-21 02:04:11,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:11,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-21 02:04:11,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:11,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-21 02:04:11,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:11,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-21 02:04:11,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:11,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-21 02:04:11,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:11,945 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2023-12-21 02:04:11,945 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 02:04:11,945 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [205233605] [2023-12-21 02:04:11,945 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [205233605] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 02:04:11,945 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 02:04:11,945 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-12-21 02:04:11,945 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1946965728] [2023-12-21 02:04:11,945 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 02:04:11,945 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-21 02:04:11,945 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 02:04:11,946 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-21 02:04:11,946 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2023-12-21 02:04:11,946 INFO L87 Difference]: Start difference. First operand 191 states and 265 transitions. Second operand has 11 states, 11 states have (on average 4.636363636363637) internal successors, (51), 11 states have internal predecessors, (51), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-12-21 02:04:12,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 02:04:12,681 INFO L93 Difference]: Finished difference Result 525 states and 724 transitions. [2023-12-21 02:04:12,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-21 02:04:12,682 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 4.636363636363637) internal successors, (51), 11 states have internal predecessors, (51), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 143 [2023-12-21 02:04:12,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 02:04:12,700 INFO L225 Difference]: With dead ends: 525 [2023-12-21 02:04:12,700 INFO L226 Difference]: Without dead ends: 335 [2023-12-21 02:04:12,701 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=97, Invalid=323, Unknown=0, NotChecked=0, Total=420 [2023-12-21 02:04:12,701 INFO L413 NwaCegarLoop]: 171 mSDtfsCounter, 315 mSDsluCounter, 882 mSDsCounter, 0 mSdLazyCounter, 877 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 315 SdHoareTripleChecker+Valid, 1053 SdHoareTripleChecker+Invalid, 902 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 877 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-21 02:04:12,701 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [315 Valid, 1053 Invalid, 902 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 877 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-21 02:04:12,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 335 states. [2023-12-21 02:04:12,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 335 to 209. [2023-12-21 02:04:12,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 209 states, 176 states have (on average 1.3068181818181819) internal successors, (230), 177 states have internal predecessors, (230), 30 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (30), 29 states have call predecessors, (30), 30 states have call successors, (30) [2023-12-21 02:04:12,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209 states to 209 states and 290 transitions. [2023-12-21 02:04:12,731 INFO L78 Accepts]: Start accepts. Automaton has 209 states and 290 transitions. Word has length 143 [2023-12-21 02:04:12,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 02:04:12,731 INFO L495 AbstractCegarLoop]: Abstraction has 209 states and 290 transitions. [2023-12-21 02:04:12,731 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 4.636363636363637) internal successors, (51), 11 states have internal predecessors, (51), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-12-21 02:04:12,731 INFO L276 IsEmpty]: Start isEmpty. Operand 209 states and 290 transitions. [2023-12-21 02:04:12,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2023-12-21 02:04:12,732 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 02:04:12,732 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:04:12,732 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-12-21 02:04:12,733 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 02:04:12,733 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 02:04:12,733 INFO L85 PathProgramCache]: Analyzing trace with hash -1296919881, now seen corresponding path program 1 times [2023-12-21 02:04:12,733 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 02:04:12,733 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [676197317] [2023-12-21 02:04:12,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:04:12,733 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 02:04:12,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:12,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 02:04:12,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:12,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 02:04:12,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:12,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 02:04:12,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:12,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 02:04:12,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:12,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-21 02:04:12,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:12,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 02:04:12,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:12,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-21 02:04:12,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:12,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 02:04:12,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:12,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 02:04:12,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:12,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 02:04:12,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:12,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-21 02:04:12,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:12,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 02:04:12,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:12,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-21 02:04:12,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:12,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-21 02:04:12,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:12,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-21 02:04:12,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:12,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-21 02:04:12,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:12,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-21 02:04:12,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:12,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-21 02:04:12,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:12,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-21 02:04:12,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:12,858 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2023-12-21 02:04:12,858 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 02:04:12,858 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [676197317] [2023-12-21 02:04:12,858 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [676197317] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 02:04:12,858 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 02:04:12,858 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-21 02:04:12,858 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1354911319] [2023-12-21 02:04:12,858 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 02:04:12,858 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 02:04:12,858 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 02:04:12,859 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 02:04:12,859 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-21 02:04:12,859 INFO L87 Difference]: Start difference. First operand 209 states and 290 transitions. Second operand has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-12-21 02:04:12,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 02:04:12,932 INFO L93 Difference]: Finished difference Result 497 states and 685 transitions. [2023-12-21 02:04:12,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-21 02:04:12,933 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 143 [2023-12-21 02:04:12,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 02:04:12,934 INFO L225 Difference]: With dead ends: 497 [2023-12-21 02:04:12,934 INFO L226 Difference]: Without dead ends: 289 [2023-12-21 02:04:12,935 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-12-21 02:04:12,936 INFO L413 NwaCegarLoop]: 158 mSDtfsCounter, 108 mSDsluCounter, 397 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 555 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 02:04:12,936 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [108 Valid, 555 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 02:04:12,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 289 states. [2023-12-21 02:04:12,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 289 to 215. [2023-12-21 02:04:12,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 215 states, 182 states have (on average 1.3021978021978022) internal successors, (237), 183 states have internal predecessors, (237), 30 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (30), 29 states have call predecessors, (30), 30 states have call successors, (30) [2023-12-21 02:04:12,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 215 states to 215 states and 297 transitions. [2023-12-21 02:04:12,957 INFO L78 Accepts]: Start accepts. Automaton has 215 states and 297 transitions. Word has length 143 [2023-12-21 02:04:12,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 02:04:12,958 INFO L495 AbstractCegarLoop]: Abstraction has 215 states and 297 transitions. [2023-12-21 02:04:12,958 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-12-21 02:04:12,958 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states and 297 transitions. [2023-12-21 02:04:12,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2023-12-21 02:04:12,959 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 02:04:12,959 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:04:12,959 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-12-21 02:04:12,959 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 02:04:12,959 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 02:04:12,959 INFO L85 PathProgramCache]: Analyzing trace with hash 765088973, now seen corresponding path program 1 times [2023-12-21 02:04:12,959 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 02:04:12,959 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1580452331] [2023-12-21 02:04:12,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:04:12,960 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 02:04:12,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:13,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 02:04:13,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:13,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 02:04:13,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:13,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 02:04:13,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:13,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 02:04:13,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:13,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-21 02:04:13,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:13,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 02:04:13,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:13,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-21 02:04:13,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:13,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 02:04:13,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:13,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 02:04:13,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:13,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 02:04:13,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:13,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-21 02:04:13,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:13,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 02:04:13,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:13,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-21 02:04:13,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:13,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-21 02:04:13,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:13,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-21 02:04:13,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:13,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-21 02:04:13,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:13,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-21 02:04:13,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:13,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-21 02:04:13,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:13,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-21 02:04:13,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:13,083 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2023-12-21 02:04:13,083 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 02:04:13,084 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1580452331] [2023-12-21 02:04:13,085 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1580452331] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 02:04:13,085 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 02:04:13,085 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-21 02:04:13,085 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [399568282] [2023-12-21 02:04:13,085 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 02:04:13,085 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 02:04:13,086 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 02:04:13,086 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 02:04:13,086 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-21 02:04:13,086 INFO L87 Difference]: Start difference. First operand 215 states and 297 transitions. Second operand has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-12-21 02:04:13,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 02:04:13,162 INFO L93 Difference]: Finished difference Result 473 states and 649 transitions. [2023-12-21 02:04:13,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-21 02:04:13,162 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 143 [2023-12-21 02:04:13,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 02:04:13,163 INFO L225 Difference]: With dead ends: 473 [2023-12-21 02:04:13,163 INFO L226 Difference]: Without dead ends: 259 [2023-12-21 02:04:13,164 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-12-21 02:04:13,164 INFO L413 NwaCegarLoop]: 158 mSDtfsCounter, 103 mSDsluCounter, 383 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 541 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 02:04:13,164 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [103 Valid, 541 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 02:04:13,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 259 states. [2023-12-21 02:04:13,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 259 to 215. [2023-12-21 02:04:13,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 215 states, 182 states have (on average 1.2967032967032968) internal successors, (236), 183 states have internal predecessors, (236), 30 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (30), 29 states have call predecessors, (30), 30 states have call successors, (30) [2023-12-21 02:04:13,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 215 states to 215 states and 296 transitions. [2023-12-21 02:04:13,187 INFO L78 Accepts]: Start accepts. Automaton has 215 states and 296 transitions. Word has length 143 [2023-12-21 02:04:13,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 02:04:13,188 INFO L495 AbstractCegarLoop]: Abstraction has 215 states and 296 transitions. [2023-12-21 02:04:13,188 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-12-21 02:04:13,188 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states and 296 transitions. [2023-12-21 02:04:13,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2023-12-21 02:04:13,189 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 02:04:13,189 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:04:13,189 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-12-21 02:04:13,189 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 02:04:13,189 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 02:04:13,189 INFO L85 PathProgramCache]: Analyzing trace with hash -255979381, now seen corresponding path program 1 times [2023-12-21 02:04:13,189 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 02:04:13,189 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [424642331] [2023-12-21 02:04:13,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:04:13,190 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 02:04:13,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:13,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 02:04:13,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:13,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 02:04:13,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:13,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 02:04:13,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:13,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 02:04:13,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:13,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-21 02:04:13,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:13,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 02:04:13,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:13,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-21 02:04:13,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:13,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 02:04:13,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:13,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 02:04:13,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:13,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 02:04:13,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:13,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-21 02:04:13,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:13,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 02:04:13,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:13,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-21 02:04:13,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:13,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-21 02:04:13,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:13,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-21 02:04:13,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:13,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-21 02:04:13,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:13,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-21 02:04:13,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:13,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-21 02:04:13,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:13,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-21 02:04:13,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:13,317 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2023-12-21 02:04:13,317 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 02:04:13,317 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [424642331] [2023-12-21 02:04:13,317 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [424642331] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 02:04:13,317 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 02:04:13,318 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-21 02:04:13,318 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [604563724] [2023-12-21 02:04:13,318 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 02:04:13,319 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 02:04:13,319 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 02:04:13,319 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 02:04:13,319 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-21 02:04:13,319 INFO L87 Difference]: Start difference. First operand 215 states and 296 transitions. Second operand has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-12-21 02:04:13,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 02:04:13,387 INFO L93 Difference]: Finished difference Result 447 states and 613 transitions. [2023-12-21 02:04:13,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-21 02:04:13,387 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 143 [2023-12-21 02:04:13,388 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 02:04:13,388 INFO L225 Difference]: With dead ends: 447 [2023-12-21 02:04:13,388 INFO L226 Difference]: Without dead ends: 233 [2023-12-21 02:04:13,389 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-21 02:04:13,389 INFO L413 NwaCegarLoop]: 160 mSDtfsCounter, 60 mSDsluCounter, 409 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 569 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 02:04:13,390 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 569 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 02:04:13,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 233 states. [2023-12-21 02:04:13,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 233 to 209. [2023-12-21 02:04:13,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 209 states, 176 states have (on average 1.2897727272727273) internal successors, (227), 177 states have internal predecessors, (227), 30 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (30), 29 states have call predecessors, (30), 30 states have call successors, (30) [2023-12-21 02:04:13,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209 states to 209 states and 287 transitions. [2023-12-21 02:04:13,412 INFO L78 Accepts]: Start accepts. Automaton has 209 states and 287 transitions. Word has length 143 [2023-12-21 02:04:13,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 02:04:13,412 INFO L495 AbstractCegarLoop]: Abstraction has 209 states and 287 transitions. [2023-12-21 02:04:13,412 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-12-21 02:04:13,412 INFO L276 IsEmpty]: Start isEmpty. Operand 209 states and 287 transitions. [2023-12-21 02:04:13,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2023-12-21 02:04:13,413 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 02:04:13,413 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:04:13,413 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-12-21 02:04:13,413 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 02:04:13,413 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 02:04:13,414 INFO L85 PathProgramCache]: Analyzing trace with hash -612589333, now seen corresponding path program 1 times [2023-12-21 02:04:13,414 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 02:04:13,414 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1217746904] [2023-12-21 02:04:13,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:04:13,414 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 02:04:13,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:14,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 02:04:14,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:14,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 02:04:14,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:14,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 02:04:14,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:14,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 02:04:14,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:14,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-21 02:04:14,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:14,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 02:04:14,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:14,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-21 02:04:14,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:14,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 02:04:14,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:14,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 02:04:14,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:14,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 02:04:14,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:14,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-21 02:04:14,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:14,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 02:04:14,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:14,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-21 02:04:14,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:14,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-21 02:04:14,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:14,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-21 02:04:14,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:14,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-21 02:04:14,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:14,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-21 02:04:14,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:14,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-21 02:04:14,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:14,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-21 02:04:14,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:14,103 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2023-12-21 02:04:14,103 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 02:04:14,103 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1217746904] [2023-12-21 02:04:14,103 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1217746904] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 02:04:14,103 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 02:04:14,103 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-12-21 02:04:14,103 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1339403709] [2023-12-21 02:04:14,103 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 02:04:14,103 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-21 02:04:14,108 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 02:04:14,108 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-21 02:04:14,109 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2023-12-21 02:04:14,109 INFO L87 Difference]: Start difference. First operand 209 states and 287 transitions. Second operand has 11 states, 11 states have (on average 4.7272727272727275) internal successors, (52), 11 states have internal predecessors, (52), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-12-21 02:04:15,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 02:04:15,255 INFO L93 Difference]: Finished difference Result 722 states and 987 transitions. [2023-12-21 02:04:15,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-12-21 02:04:15,255 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 4.7272727272727275) internal successors, (52), 11 states have internal predecessors, (52), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 144 [2023-12-21 02:04:15,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 02:04:15,257 INFO L225 Difference]: With dead ends: 722 [2023-12-21 02:04:15,257 INFO L226 Difference]: Without dead ends: 514 [2023-12-21 02:04:15,258 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 117 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=190, Invalid=566, Unknown=0, NotChecked=0, Total=756 [2023-12-21 02:04:15,258 INFO L413 NwaCegarLoop]: 235 mSDtfsCounter, 575 mSDsluCounter, 1135 mSDsCounter, 0 mSdLazyCounter, 891 mSolverCounterSat, 70 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 575 SdHoareTripleChecker+Valid, 1370 SdHoareTripleChecker+Invalid, 961 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 70 IncrementalHoareTripleChecker+Valid, 891 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-21 02:04:15,258 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [575 Valid, 1370 Invalid, 961 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [70 Valid, 891 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-21 02:04:15,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 514 states. [2023-12-21 02:04:15,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 514 to 259. [2023-12-21 02:04:15,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 259 states, 226 states have (on average 1.3185840707964602) internal successors, (298), 227 states have internal predecessors, (298), 30 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (30), 29 states have call predecessors, (30), 30 states have call successors, (30) [2023-12-21 02:04:15,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 259 states to 259 states and 358 transitions. [2023-12-21 02:04:15,283 INFO L78 Accepts]: Start accepts. Automaton has 259 states and 358 transitions. Word has length 144 [2023-12-21 02:04:15,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 02:04:15,283 INFO L495 AbstractCegarLoop]: Abstraction has 259 states and 358 transitions. [2023-12-21 02:04:15,284 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 4.7272727272727275) internal successors, (52), 11 states have internal predecessors, (52), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-12-21 02:04:15,284 INFO L276 IsEmpty]: Start isEmpty. Operand 259 states and 358 transitions. [2023-12-21 02:04:15,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2023-12-21 02:04:15,286 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 02:04:15,286 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:04:15,286 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-12-21 02:04:15,286 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 02:04:15,286 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 02:04:15,286 INFO L85 PathProgramCache]: Analyzing trace with hash 288196809, now seen corresponding path program 1 times [2023-12-21 02:04:15,286 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 02:04:15,286 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [513782506] [2023-12-21 02:04:15,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:04:15,286 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 02:04:15,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:16,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 02:04:16,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:16,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 02:04:16,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:16,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 02:04:16,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:16,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 02:04:16,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:16,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-21 02:04:16,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:16,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 02:04:16,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:16,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-21 02:04:16,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:16,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 02:04:16,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:16,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 02:04:16,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:16,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 02:04:16,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:16,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-21 02:04:16,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:16,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 02:04:16,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:16,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-21 02:04:16,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:16,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-21 02:04:16,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:16,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-21 02:04:16,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:16,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-21 02:04:16,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:16,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-21 02:04:16,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:16,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-21 02:04:16,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:16,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-21 02:04:16,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:16,106 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2023-12-21 02:04:16,106 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 02:04:16,107 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [513782506] [2023-12-21 02:04:16,107 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [513782506] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 02:04:16,107 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 02:04:16,107 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2023-12-21 02:04:16,107 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [798195853] [2023-12-21 02:04:16,107 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 02:04:16,108 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-12-21 02:04:16,108 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 02:04:16,109 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-12-21 02:04:16,109 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=142, Unknown=0, NotChecked=0, Total=182 [2023-12-21 02:04:16,109 INFO L87 Difference]: Start difference. First operand 259 states and 358 transitions. Second operand has 14 states, 14 states have (on average 3.7857142857142856) internal successors, (53), 14 states have internal predecessors, (53), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2023-12-21 02:04:17,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 02:04:17,307 INFO L93 Difference]: Finished difference Result 728 states and 996 transitions. [2023-12-21 02:04:17,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-21 02:04:17,308 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 3.7857142857142856) internal successors, (53), 14 states have internal predecessors, (53), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) Word has length 145 [2023-12-21 02:04:17,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 02:04:17,309 INFO L225 Difference]: With dead ends: 728 [2023-12-21 02:04:17,309 INFO L226 Difference]: Without dead ends: 470 [2023-12-21 02:04:17,310 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 92 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=127, Invalid=379, Unknown=0, NotChecked=0, Total=506 [2023-12-21 02:04:17,310 INFO L413 NwaCegarLoop]: 118 mSDtfsCounter, 470 mSDsluCounter, 688 mSDsCounter, 0 mSdLazyCounter, 949 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 470 SdHoareTripleChecker+Valid, 806 SdHoareTripleChecker+Invalid, 1017 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 949 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-21 02:04:17,310 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [470 Valid, 806 Invalid, 1017 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [68 Valid, 949 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-21 02:04:17,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 470 states. [2023-12-21 02:04:17,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 470 to 284. [2023-12-21 02:04:17,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 284 states, 251 states have (on average 1.3266932270916334) internal successors, (333), 252 states have internal predecessors, (333), 30 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (30), 29 states have call predecessors, (30), 30 states have call successors, (30) [2023-12-21 02:04:17,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 284 states to 284 states and 393 transitions. [2023-12-21 02:04:17,335 INFO L78 Accepts]: Start accepts. Automaton has 284 states and 393 transitions. Word has length 145 [2023-12-21 02:04:17,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 02:04:17,335 INFO L495 AbstractCegarLoop]: Abstraction has 284 states and 393 transitions. [2023-12-21 02:04:17,335 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 3.7857142857142856) internal successors, (53), 14 states have internal predecessors, (53), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2023-12-21 02:04:17,335 INFO L276 IsEmpty]: Start isEmpty. Operand 284 states and 393 transitions. [2023-12-21 02:04:17,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2023-12-21 02:04:17,336 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 02:04:17,336 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:04:17,336 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-12-21 02:04:17,337 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 02:04:17,337 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 02:04:17,337 INFO L85 PathProgramCache]: Analyzing trace with hash -1300151093, now seen corresponding path program 1 times [2023-12-21 02:04:17,337 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 02:04:17,337 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2074666884] [2023-12-21 02:04:17,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:04:17,337 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 02:04:17,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:17,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 02:04:17,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:17,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 02:04:17,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:17,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 02:04:17,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:17,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 02:04:17,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:17,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-21 02:04:17,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:17,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 02:04:17,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:17,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-21 02:04:17,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:17,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 02:04:17,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:17,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 02:04:17,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:17,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 02:04:17,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:17,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-21 02:04:17,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:17,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 02:04:17,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:17,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-21 02:04:17,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:17,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-21 02:04:17,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:17,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-21 02:04:17,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:17,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-21 02:04:17,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:17,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-21 02:04:17,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:17,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-21 02:04:17,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:17,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-21 02:04:17,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:17,616 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2023-12-21 02:04:17,616 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 02:04:17,616 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2074666884] [2023-12-21 02:04:17,616 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2074666884] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 02:04:17,616 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 02:04:17,616 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-21 02:04:17,616 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1162775526] [2023-12-21 02:04:17,616 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 02:04:17,617 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-21 02:04:17,617 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 02:04:17,617 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-21 02:04:17,617 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-21 02:04:17,617 INFO L87 Difference]: Start difference. First operand 284 states and 393 transitions. Second operand has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-12-21 02:04:17,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 02:04:17,916 INFO L93 Difference]: Finished difference Result 777 states and 1066 transitions. [2023-12-21 02:04:17,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-21 02:04:17,916 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 145 [2023-12-21 02:04:17,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 02:04:17,918 INFO L225 Difference]: With dead ends: 777 [2023-12-21 02:04:17,918 INFO L226 Difference]: Without dead ends: 494 [2023-12-21 02:04:17,918 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2023-12-21 02:04:17,919 INFO L413 NwaCegarLoop]: 152 mSDtfsCounter, 163 mSDsluCounter, 352 mSDsCounter, 0 mSdLazyCounter, 339 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 163 SdHoareTripleChecker+Valid, 504 SdHoareTripleChecker+Invalid, 340 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 339 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-21 02:04:17,919 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [163 Valid, 504 Invalid, 340 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 339 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-21 02:04:17,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 494 states. [2023-12-21 02:04:17,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 494 to 294. [2023-12-21 02:04:17,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 294 states, 261 states have (on average 1.3295019157088122) internal successors, (347), 262 states have internal predecessors, (347), 30 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (30), 29 states have call predecessors, (30), 30 states have call successors, (30) [2023-12-21 02:04:17,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 294 states to 294 states and 407 transitions. [2023-12-21 02:04:17,943 INFO L78 Accepts]: Start accepts. Automaton has 294 states and 407 transitions. Word has length 145 [2023-12-21 02:04:17,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 02:04:17,943 INFO L495 AbstractCegarLoop]: Abstraction has 294 states and 407 transitions. [2023-12-21 02:04:17,943 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-12-21 02:04:17,943 INFO L276 IsEmpty]: Start isEmpty. Operand 294 states and 407 transitions. [2023-12-21 02:04:17,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2023-12-21 02:04:17,944 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 02:04:17,944 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:04:17,944 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-12-21 02:04:17,944 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 02:04:17,944 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 02:04:17,944 INFO L85 PathProgramCache]: Analyzing trace with hash 1983698953, now seen corresponding path program 1 times [2023-12-21 02:04:17,944 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 02:04:17,944 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1725682178] [2023-12-21 02:04:17,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:04:17,945 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 02:04:17,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:18,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 02:04:18,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:18,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 02:04:18,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:18,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 02:04:18,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:18,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 02:04:18,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:18,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-21 02:04:18,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:18,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 02:04:18,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:18,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-21 02:04:18,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:18,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 02:04:18,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:18,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 02:04:18,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:18,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 02:04:18,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:18,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-21 02:04:18,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:18,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 02:04:18,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:18,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-21 02:04:18,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:18,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-21 02:04:18,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:18,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-21 02:04:18,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:18,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-21 02:04:18,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:18,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-21 02:04:18,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:18,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-21 02:04:18,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:18,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-21 02:04:18,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:18,663 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2023-12-21 02:04:18,663 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 02:04:18,663 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1725682178] [2023-12-21 02:04:18,663 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1725682178] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 02:04:18,663 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 02:04:18,663 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2023-12-21 02:04:18,663 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1745965124] [2023-12-21 02:04:18,663 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 02:04:18,664 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-12-21 02:04:18,664 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 02:04:18,664 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-12-21 02:04:18,664 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=199, Unknown=0, NotChecked=0, Total=240 [2023-12-21 02:04:18,665 INFO L87 Difference]: Start difference. First operand 294 states and 407 transitions. Second operand has 16 states, 15 states have (on average 3.533333333333333) internal successors, (53), 16 states have internal predecessors, (53), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2023-12-21 02:04:19,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 02:04:19,694 INFO L93 Difference]: Finished difference Result 687 states and 944 transitions. [2023-12-21 02:04:19,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-21 02:04:19,695 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 3.533333333333333) internal successors, (53), 16 states have internal predecessors, (53), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) Word has length 145 [2023-12-21 02:04:19,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 02:04:19,697 INFO L225 Difference]: With dead ends: 687 [2023-12-21 02:04:19,697 INFO L226 Difference]: Without dead ends: 394 [2023-12-21 02:04:19,697 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=138, Invalid=512, Unknown=0, NotChecked=0, Total=650 [2023-12-21 02:04:19,698 INFO L413 NwaCegarLoop]: 168 mSDtfsCounter, 497 mSDsluCounter, 921 mSDsCounter, 0 mSdLazyCounter, 1205 mSolverCounterSat, 90 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 497 SdHoareTripleChecker+Valid, 1089 SdHoareTripleChecker+Invalid, 1295 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 90 IncrementalHoareTripleChecker+Valid, 1205 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-21 02:04:19,698 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [497 Valid, 1089 Invalid, 1295 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [90 Valid, 1205 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-21 02:04:19,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 394 states. [2023-12-21 02:04:19,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 394 to 294. [2023-12-21 02:04:19,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 294 states, 261 states have (on average 1.3295019157088122) internal successors, (347), 262 states have internal predecessors, (347), 30 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (30), 29 states have call predecessors, (30), 30 states have call successors, (30) [2023-12-21 02:04:19,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 294 states to 294 states and 407 transitions. [2023-12-21 02:04:19,724 INFO L78 Accepts]: Start accepts. Automaton has 294 states and 407 transitions. Word has length 145 [2023-12-21 02:04:19,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 02:04:19,724 INFO L495 AbstractCegarLoop]: Abstraction has 294 states and 407 transitions. [2023-12-21 02:04:19,724 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 3.533333333333333) internal successors, (53), 16 states have internal predecessors, (53), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2023-12-21 02:04:19,725 INFO L276 IsEmpty]: Start isEmpty. Operand 294 states and 407 transitions. [2023-12-21 02:04:19,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2023-12-21 02:04:19,725 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 02:04:19,725 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:04:19,725 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-12-21 02:04:19,725 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 02:04:19,726 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 02:04:19,726 INFO L85 PathProgramCache]: Analyzing trace with hash 110204309, now seen corresponding path program 1 times [2023-12-21 02:04:19,726 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 02:04:19,726 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1293383613] [2023-12-21 02:04:19,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:04:19,726 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 02:04:19,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:19,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 02:04:19,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:19,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 02:04:19,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:19,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 02:04:19,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:19,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 02:04:19,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:19,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-21 02:04:19,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:19,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 02:04:19,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:19,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-21 02:04:19,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:19,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 02:04:19,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:19,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 02:04:19,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:19,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 02:04:19,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:19,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-21 02:04:19,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:19,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 02:04:19,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:19,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-21 02:04:19,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:19,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-21 02:04:19,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:19,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-21 02:04:19,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:19,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-21 02:04:19,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:19,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-21 02:04:19,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:19,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-21 02:04:19,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:19,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-21 02:04:20,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:20,004 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2023-12-21 02:04:20,004 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 02:04:20,004 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1293383613] [2023-12-21 02:04:20,005 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1293383613] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 02:04:20,005 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 02:04:20,005 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-21 02:04:20,005 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [270833950] [2023-12-21 02:04:20,005 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 02:04:20,005 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-21 02:04:20,005 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 02:04:20,005 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-21 02:04:20,006 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-12-21 02:04:20,006 INFO L87 Difference]: Start difference. First operand 294 states and 407 transitions. Second operand has 8 states, 7 states have (on average 7.571428571428571) internal successors, (53), 8 states have internal predecessors, (53), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2023-12-21 02:04:20,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 02:04:20,311 INFO L93 Difference]: Finished difference Result 590 states and 817 transitions. [2023-12-21 02:04:20,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-21 02:04:20,329 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 7.571428571428571) internal successors, (53), 8 states have internal predecessors, (53), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) Word has length 145 [2023-12-21 02:04:20,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 02:04:20,330 INFO L225 Difference]: With dead ends: 590 [2023-12-21 02:04:20,330 INFO L226 Difference]: Without dead ends: 297 [2023-12-21 02:04:20,332 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2023-12-21 02:04:20,333 INFO L413 NwaCegarLoop]: 106 mSDtfsCounter, 211 mSDsluCounter, 203 mSDsCounter, 0 mSdLazyCounter, 379 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 211 SdHoareTripleChecker+Valid, 309 SdHoareTripleChecker+Invalid, 403 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 379 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-21 02:04:20,333 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [211 Valid, 309 Invalid, 403 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 379 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-21 02:04:20,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 297 states. [2023-12-21 02:04:20,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 297 to 295. [2023-12-21 02:04:20,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 295 states, 262 states have (on average 1.3282442748091603) internal successors, (348), 263 states have internal predecessors, (348), 30 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (30), 29 states have call predecessors, (30), 30 states have call successors, (30) [2023-12-21 02:04:20,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 295 states to 295 states and 408 transitions. [2023-12-21 02:04:20,360 INFO L78 Accepts]: Start accepts. Automaton has 295 states and 408 transitions. Word has length 145 [2023-12-21 02:04:20,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 02:04:20,361 INFO L495 AbstractCegarLoop]: Abstraction has 295 states and 408 transitions. [2023-12-21 02:04:20,361 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 7.571428571428571) internal successors, (53), 8 states have internal predecessors, (53), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2023-12-21 02:04:20,361 INFO L276 IsEmpty]: Start isEmpty. Operand 295 states and 408 transitions. [2023-12-21 02:04:20,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2023-12-21 02:04:20,361 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 02:04:20,361 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:04:20,362 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2023-12-21 02:04:20,362 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 02:04:20,362 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 02:04:20,362 INFO L85 PathProgramCache]: Analyzing trace with hash -30344301, now seen corresponding path program 1 times [2023-12-21 02:04:20,362 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 02:04:20,362 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1751152270] [2023-12-21 02:04:20,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:04:20,362 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 02:04:20,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:21,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 02:04:21,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:21,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 02:04:21,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:21,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 02:04:21,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:21,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 02:04:21,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:21,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-21 02:04:21,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:21,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 02:04:21,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:21,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-21 02:04:21,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:21,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 02:04:21,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:21,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 02:04:21,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:21,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 02:04:21,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:21,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-21 02:04:21,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:21,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 02:04:21,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:21,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-21 02:04:21,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:21,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-21 02:04:21,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:21,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-21 02:04:21,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:21,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-21 02:04:21,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:21,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-21 02:04:21,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:21,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-21 02:04:21,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:21,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-21 02:04:21,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:21,431 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2023-12-21 02:04:21,431 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 02:04:21,431 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1751152270] [2023-12-21 02:04:21,431 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1751152270] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 02:04:21,431 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 02:04:21,431 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2023-12-21 02:04:21,431 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1583559050] [2023-12-21 02:04:21,431 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 02:04:21,431 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-12-21 02:04:21,431 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 02:04:21,432 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-12-21 02:04:21,432 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=199, Unknown=0, NotChecked=0, Total=240 [2023-12-21 02:04:21,432 INFO L87 Difference]: Start difference. First operand 295 states and 408 transitions. Second operand has 16 states, 15 states have (on average 3.533333333333333) internal successors, (53), 16 states have internal predecessors, (53), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2023-12-21 02:04:23,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 02:04:23,178 INFO L93 Difference]: Finished difference Result 1034 states and 1417 transitions. [2023-12-21 02:04:23,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-12-21 02:04:23,178 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 3.533333333333333) internal successors, (53), 16 states have internal predecessors, (53), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) Word has length 145 [2023-12-21 02:04:23,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 02:04:23,180 INFO L225 Difference]: With dead ends: 1034 [2023-12-21 02:04:23,180 INFO L226 Difference]: Without dead ends: 740 [2023-12-21 02:04:23,181 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 41 SyntacticMatches, 1 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 153 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=177, Invalid=693, Unknown=0, NotChecked=0, Total=870 [2023-12-21 02:04:23,181 INFO L413 NwaCegarLoop]: 180 mSDtfsCounter, 517 mSDsluCounter, 1098 mSDsCounter, 0 mSdLazyCounter, 1390 mSolverCounterSat, 92 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 517 SdHoareTripleChecker+Valid, 1278 SdHoareTripleChecker+Invalid, 1482 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 92 IncrementalHoareTripleChecker+Valid, 1390 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-12-21 02:04:23,181 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [517 Valid, 1278 Invalid, 1482 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [92 Valid, 1390 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-12-21 02:04:23,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 740 states. [2023-12-21 02:04:23,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 740 to 326. [2023-12-21 02:04:23,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 326 states, 293 states have (on average 1.3378839590443685) internal successors, (392), 294 states have internal predecessors, (392), 30 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (30), 29 states have call predecessors, (30), 30 states have call successors, (30) [2023-12-21 02:04:23,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 326 states to 326 states and 452 transitions. [2023-12-21 02:04:23,211 INFO L78 Accepts]: Start accepts. Automaton has 326 states and 452 transitions. Word has length 145 [2023-12-21 02:04:23,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 02:04:23,211 INFO L495 AbstractCegarLoop]: Abstraction has 326 states and 452 transitions. [2023-12-21 02:04:23,211 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 3.533333333333333) internal successors, (53), 16 states have internal predecessors, (53), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2023-12-21 02:04:23,211 INFO L276 IsEmpty]: Start isEmpty. Operand 326 states and 452 transitions. [2023-12-21 02:04:23,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2023-12-21 02:04:23,212 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 02:04:23,212 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:04:23,212 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2023-12-21 02:04:23,212 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 02:04:23,213 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 02:04:23,213 INFO L85 PathProgramCache]: Analyzing trace with hash -1310207979, now seen corresponding path program 1 times [2023-12-21 02:04:23,213 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 02:04:23,213 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [577373913] [2023-12-21 02:04:23,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:04:23,213 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 02:04:23,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:23,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 02:04:23,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:23,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 02:04:23,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:23,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 02:04:23,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:23,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 02:04:23,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:23,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-21 02:04:23,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:23,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 02:04:23,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:23,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-21 02:04:23,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:23,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 02:04:23,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:23,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 02:04:23,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:23,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 02:04:23,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:23,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-21 02:04:23,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:23,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 02:04:23,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:23,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-21 02:04:23,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:23,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-21 02:04:23,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:23,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-21 02:04:23,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:23,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-21 02:04:23,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:23,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-21 02:04:23,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:23,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-21 02:04:23,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:23,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-21 02:04:23,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:23,829 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2023-12-21 02:04:23,830 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 02:04:23,830 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [577373913] [2023-12-21 02:04:23,830 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [577373913] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 02:04:23,830 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 02:04:23,830 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-21 02:04:23,830 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2005053117] [2023-12-21 02:04:23,830 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 02:04:23,830 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-21 02:04:23,831 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 02:04:23,831 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-21 02:04:23,831 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2023-12-21 02:04:23,831 INFO L87 Difference]: Start difference. First operand 326 states and 452 transitions. Second operand has 10 states, 10 states have (on average 5.3) internal successors, (53), 10 states have internal predecessors, (53), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2023-12-21 02:04:24,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 02:04:24,541 INFO L93 Difference]: Finished difference Result 765 states and 1051 transitions. [2023-12-21 02:04:24,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-21 02:04:24,542 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.3) internal successors, (53), 10 states have internal predecessors, (53), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) Word has length 145 [2023-12-21 02:04:24,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 02:04:24,543 INFO L225 Difference]: With dead ends: 765 [2023-12-21 02:04:24,543 INFO L226 Difference]: Without dead ends: 440 [2023-12-21 02:04:24,544 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=72, Invalid=168, Unknown=0, NotChecked=0, Total=240 [2023-12-21 02:04:24,544 INFO L413 NwaCegarLoop]: 149 mSDtfsCounter, 399 mSDsluCounter, 421 mSDsCounter, 0 mSdLazyCounter, 557 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 399 SdHoareTripleChecker+Valid, 570 SdHoareTripleChecker+Invalid, 601 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 557 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-21 02:04:24,544 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [399 Valid, 570 Invalid, 601 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 557 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-21 02:04:24,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 440 states. [2023-12-21 02:04:24,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 440 to 329. [2023-12-21 02:04:24,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 329 states, 296 states have (on average 1.3175675675675675) internal successors, (390), 297 states have internal predecessors, (390), 30 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (30), 29 states have call predecessors, (30), 30 states have call successors, (30) [2023-12-21 02:04:24,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 329 states to 329 states and 450 transitions. [2023-12-21 02:04:24,576 INFO L78 Accepts]: Start accepts. Automaton has 329 states and 450 transitions. Word has length 145 [2023-12-21 02:04:24,577 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 02:04:24,577 INFO L495 AbstractCegarLoop]: Abstraction has 329 states and 450 transitions. [2023-12-21 02:04:24,577 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.3) internal successors, (53), 10 states have internal predecessors, (53), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2023-12-21 02:04:24,577 INFO L276 IsEmpty]: Start isEmpty. Operand 329 states and 450 transitions. [2023-12-21 02:04:24,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2023-12-21 02:04:24,578 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 02:04:24,578 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:04:24,578 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2023-12-21 02:04:24,578 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 02:04:24,578 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 02:04:24,578 INFO L85 PathProgramCache]: Analyzing trace with hash -1719288043, now seen corresponding path program 1 times [2023-12-21 02:04:24,578 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 02:04:24,578 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [18863582] [2023-12-21 02:04:24,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:04:24,579 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 02:04:24,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:25,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 02:04:25,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:25,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 02:04:25,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:25,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 02:04:25,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:25,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 02:04:25,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:25,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-21 02:04:25,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:25,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 02:04:25,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:25,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-21 02:04:25,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:25,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 02:04:25,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:25,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 02:04:25,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:25,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 02:04:25,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:25,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-21 02:04:25,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:25,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 02:04:25,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:26,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-21 02:04:26,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:26,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-21 02:04:26,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:26,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-21 02:04:26,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:26,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-21 02:04:26,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:26,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-21 02:04:26,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:26,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-21 02:04:26,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:26,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-21 02:04:26,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:26,019 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2023-12-21 02:04:26,019 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 02:04:26,019 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [18863582] [2023-12-21 02:04:26,019 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [18863582] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 02:04:26,019 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 02:04:26,019 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2023-12-21 02:04:26,019 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1839519767] [2023-12-21 02:04:26,019 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 02:04:26,020 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-12-21 02:04:26,020 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 02:04:26,020 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-12-21 02:04:26,020 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=222, Unknown=0, NotChecked=0, Total=272 [2023-12-21 02:04:26,020 INFO L87 Difference]: Start difference. First operand 329 states and 450 transitions. Second operand has 17 states, 17 states have (on average 3.1176470588235294) internal successors, (53), 17 states have internal predecessors, (53), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2023-12-21 02:04:28,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 02:04:28,917 INFO L93 Difference]: Finished difference Result 777 states and 1060 transitions. [2023-12-21 02:04:28,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-21 02:04:28,918 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 3.1176470588235294) internal successors, (53), 17 states have internal predecessors, (53), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) Word has length 145 [2023-12-21 02:04:28,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 02:04:28,919 INFO L225 Difference]: With dead ends: 777 [2023-12-21 02:04:28,919 INFO L226 Difference]: Without dead ends: 449 [2023-12-21 02:04:28,920 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 41 SyntacticMatches, 2 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 156 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=167, Invalid=589, Unknown=0, NotChecked=0, Total=756 [2023-12-21 02:04:28,920 INFO L413 NwaCegarLoop]: 165 mSDtfsCounter, 418 mSDsluCounter, 914 mSDsCounter, 0 mSdLazyCounter, 1286 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 418 SdHoareTripleChecker+Valid, 1079 SdHoareTripleChecker+Invalid, 1351 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 1286 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2023-12-21 02:04:28,921 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [418 Valid, 1079 Invalid, 1351 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 1286 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2023-12-21 02:04:28,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 449 states. [2023-12-21 02:04:28,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 449 to 319. [2023-12-21 02:04:28,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 319 states, 286 states have (on average 1.3181818181818181) internal successors, (377), 287 states have internal predecessors, (377), 30 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (30), 29 states have call predecessors, (30), 30 states have call successors, (30) [2023-12-21 02:04:28,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 319 states to 319 states and 437 transitions. [2023-12-21 02:04:28,983 INFO L78 Accepts]: Start accepts. Automaton has 319 states and 437 transitions. Word has length 145 [2023-12-21 02:04:28,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 02:04:28,983 INFO L495 AbstractCegarLoop]: Abstraction has 319 states and 437 transitions. [2023-12-21 02:04:28,984 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 3.1176470588235294) internal successors, (53), 17 states have internal predecessors, (53), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2023-12-21 02:04:28,984 INFO L276 IsEmpty]: Start isEmpty. Operand 319 states and 437 transitions. [2023-12-21 02:04:28,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2023-12-21 02:04:28,995 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 02:04:28,995 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:04:28,995 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2023-12-21 02:04:28,995 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 02:04:28,995 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 02:04:28,995 INFO L85 PathProgramCache]: Analyzing trace with hash -221276281, now seen corresponding path program 1 times [2023-12-21 02:04:28,995 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 02:04:28,995 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1625640034] [2023-12-21 02:04:28,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:04:28,996 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 02:04:29,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:29,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 02:04:29,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:29,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 02:04:29,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:29,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 02:04:29,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:29,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 02:04:29,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:29,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-21 02:04:29,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:29,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 02:04:29,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:29,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-21 02:04:29,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:29,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 02:04:29,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:29,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 02:04:29,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:29,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 02:04:29,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:29,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-21 02:04:29,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:29,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 02:04:29,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:29,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-21 02:04:29,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:29,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-21 02:04:29,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:29,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-21 02:04:29,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:29,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-21 02:04:29,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:29,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-21 02:04:29,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:29,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-21 02:04:29,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:29,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-21 02:04:29,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:29,650 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2023-12-21 02:04:29,650 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 02:04:29,650 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1625640034] [2023-12-21 02:04:29,650 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1625640034] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 02:04:29,650 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 02:04:29,650 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-12-21 02:04:29,650 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [601563433] [2023-12-21 02:04:29,650 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 02:04:29,651 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-12-21 02:04:29,651 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 02:04:29,651 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-12-21 02:04:29,651 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2023-12-21 02:04:29,651 INFO L87 Difference]: Start difference. First operand 319 states and 437 transitions. Second operand has 12 states, 11 states have (on average 4.818181818181818) internal successors, (53), 12 states have internal predecessors, (53), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2023-12-21 02:04:30,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 02:04:30,471 INFO L93 Difference]: Finished difference Result 765 states and 1040 transitions. [2023-12-21 02:04:30,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-21 02:04:30,471 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 4.818181818181818) internal successors, (53), 12 states have internal predecessors, (53), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) Word has length 145 [2023-12-21 02:04:30,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 02:04:30,472 INFO L225 Difference]: With dead ends: 765 [2023-12-21 02:04:30,473 INFO L226 Difference]: Without dead ends: 447 [2023-12-21 02:04:30,473 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 41 SyntacticMatches, 2 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=88, Invalid=254, Unknown=0, NotChecked=0, Total=342 [2023-12-21 02:04:30,473 INFO L413 NwaCegarLoop]: 118 mSDtfsCounter, 410 mSDsluCounter, 436 mSDsCounter, 0 mSdLazyCounter, 796 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 410 SdHoareTripleChecker+Valid, 554 SdHoareTripleChecker+Invalid, 865 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 796 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-21 02:04:30,474 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [410 Valid, 554 Invalid, 865 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [69 Valid, 796 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-21 02:04:30,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 447 states. [2023-12-21 02:04:30,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 447 to 262. [2023-12-21 02:04:30,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 262 states, 240 states have (on average 1.3208333333333333) internal successors, (317), 240 states have internal predecessors, (317), 19 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2023-12-21 02:04:30,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 262 states to 262 states and 355 transitions. [2023-12-21 02:04:30,504 INFO L78 Accepts]: Start accepts. Automaton has 262 states and 355 transitions. Word has length 145 [2023-12-21 02:04:30,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 02:04:30,504 INFO L495 AbstractCegarLoop]: Abstraction has 262 states and 355 transitions. [2023-12-21 02:04:30,504 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 4.818181818181818) internal successors, (53), 12 states have internal predecessors, (53), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2023-12-21 02:04:30,504 INFO L276 IsEmpty]: Start isEmpty. Operand 262 states and 355 transitions. [2023-12-21 02:04:30,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2023-12-21 02:04:30,505 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 02:04:30,505 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:04:30,505 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2023-12-21 02:04:30,505 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 02:04:30,505 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 02:04:30,506 INFO L85 PathProgramCache]: Analyzing trace with hash -1232393531, now seen corresponding path program 1 times [2023-12-21 02:04:30,506 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 02:04:30,506 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [835012818] [2023-12-21 02:04:30,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:04:30,506 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 02:04:30,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:31,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 02:04:31,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:31,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 02:04:31,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:31,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 02:04:31,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:31,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 02:04:31,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:31,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-21 02:04:31,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:31,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 02:04:31,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:31,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-21 02:04:31,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:31,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 02:04:31,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:31,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 02:04:31,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:31,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 02:04:31,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:31,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-21 02:04:31,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:31,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 02:04:31,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:31,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-21 02:04:31,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:31,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-21 02:04:31,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:31,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-21 02:04:31,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:31,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-21 02:04:31,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:31,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-21 02:04:31,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:31,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-21 02:04:31,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:31,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-21 02:04:31,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:31,199 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2023-12-21 02:04:31,200 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 02:04:31,200 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [835012818] [2023-12-21 02:04:31,200 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [835012818] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 02:04:31,200 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 02:04:31,200 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-12-21 02:04:31,200 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [532947061] [2023-12-21 02:04:31,200 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 02:04:31,200 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-12-21 02:04:31,200 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 02:04:31,201 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-12-21 02:04:31,201 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2023-12-21 02:04:31,201 INFO L87 Difference]: Start difference. First operand 262 states and 355 transitions. Second operand has 12 states, 11 states have (on average 4.818181818181818) internal successors, (53), 12 states have internal predecessors, (53), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2023-12-21 02:04:31,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 02:04:31,979 INFO L93 Difference]: Finished difference Result 624 states and 840 transitions. [2023-12-21 02:04:31,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-21 02:04:31,980 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 4.818181818181818) internal successors, (53), 12 states have internal predecessors, (53), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) Word has length 145 [2023-12-21 02:04:31,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 02:04:31,981 INFO L225 Difference]: With dead ends: 624 [2023-12-21 02:04:31,981 INFO L226 Difference]: Without dead ends: 363 [2023-12-21 02:04:31,981 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=82, Invalid=260, Unknown=0, NotChecked=0, Total=342 [2023-12-21 02:04:31,982 INFO L413 NwaCegarLoop]: 135 mSDtfsCounter, 419 mSDsluCounter, 509 mSDsCounter, 0 mSdLazyCounter, 698 mSolverCounterSat, 91 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 419 SdHoareTripleChecker+Valid, 644 SdHoareTripleChecker+Invalid, 789 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 91 IncrementalHoareTripleChecker+Valid, 698 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-21 02:04:31,982 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [419 Valid, 644 Invalid, 789 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [91 Valid, 698 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-21 02:04:31,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 363 states. [2023-12-21 02:04:32,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 363 to 262. [2023-12-21 02:04:32,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 262 states, 240 states have (on average 1.3041666666666667) internal successors, (313), 240 states have internal predecessors, (313), 19 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2023-12-21 02:04:32,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 262 states to 262 states and 351 transitions. [2023-12-21 02:04:32,013 INFO L78 Accepts]: Start accepts. Automaton has 262 states and 351 transitions. Word has length 145 [2023-12-21 02:04:32,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 02:04:32,013 INFO L495 AbstractCegarLoop]: Abstraction has 262 states and 351 transitions. [2023-12-21 02:04:32,013 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 4.818181818181818) internal successors, (53), 12 states have internal predecessors, (53), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2023-12-21 02:04:32,014 INFO L276 IsEmpty]: Start isEmpty. Operand 262 states and 351 transitions. [2023-12-21 02:04:32,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2023-12-21 02:04:32,014 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 02:04:32,014 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:04:32,014 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2023-12-21 02:04:32,014 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 02:04:32,015 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 02:04:32,015 INFO L85 PathProgramCache]: Analyzing trace with hash 1474225863, now seen corresponding path program 1 times [2023-12-21 02:04:32,015 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 02:04:32,015 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1345313242] [2023-12-21 02:04:32,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:04:32,015 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 02:04:32,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:32,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 02:04:32,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:32,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 02:04:32,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:32,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 02:04:32,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:32,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 02:04:32,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:32,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-21 02:04:32,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:32,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 02:04:32,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:32,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-21 02:04:32,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:32,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 02:04:32,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:32,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 02:04:32,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:32,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 02:04:32,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:32,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-21 02:04:32,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:32,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 02:04:32,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:32,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-21 02:04:32,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:32,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-21 02:04:32,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:32,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-21 02:04:32,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:32,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-21 02:04:32,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:32,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-21 02:04:32,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:32,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-21 02:04:32,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:32,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-21 02:04:32,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:32,348 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2023-12-21 02:04:32,348 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 02:04:32,349 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1345313242] [2023-12-21 02:04:32,349 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1345313242] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 02:04:32,349 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 02:04:32,349 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-12-21 02:04:32,349 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1931984464] [2023-12-21 02:04:32,349 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 02:04:32,350 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-21 02:04:32,350 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 02:04:32,351 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-21 02:04:32,351 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2023-12-21 02:04:32,351 INFO L87 Difference]: Start difference. First operand 262 states and 351 transitions. Second operand has 11 states, 11 states have (on average 4.818181818181818) internal successors, (53), 11 states have internal predecessors, (53), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-12-21 02:04:32,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 02:04:32,884 INFO L93 Difference]: Finished difference Result 618 states and 824 transitions. [2023-12-21 02:04:32,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-21 02:04:32,884 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 4.818181818181818) internal successors, (53), 11 states have internal predecessors, (53), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 145 [2023-12-21 02:04:32,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 02:04:32,886 INFO L225 Difference]: With dead ends: 618 [2023-12-21 02:04:32,886 INFO L226 Difference]: Without dead ends: 357 [2023-12-21 02:04:32,887 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=59, Invalid=181, Unknown=0, NotChecked=0, Total=240 [2023-12-21 02:04:32,887 INFO L413 NwaCegarLoop]: 187 mSDtfsCounter, 252 mSDsluCounter, 625 mSDsCounter, 0 mSdLazyCounter, 750 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 252 SdHoareTripleChecker+Valid, 812 SdHoareTripleChecker+Invalid, 752 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 750 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-21 02:04:32,888 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [252 Valid, 812 Invalid, 752 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 750 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-21 02:04:32,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 357 states. [2023-12-21 02:04:32,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 357 to 258. [2023-12-21 02:04:32,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 258 states, 236 states have (on average 1.3008474576271187) internal successors, (307), 236 states have internal predecessors, (307), 19 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2023-12-21 02:04:32,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 258 states to 258 states and 345 transitions. [2023-12-21 02:04:32,919 INFO L78 Accepts]: Start accepts. Automaton has 258 states and 345 transitions. Word has length 145 [2023-12-21 02:04:32,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 02:04:32,919 INFO L495 AbstractCegarLoop]: Abstraction has 258 states and 345 transitions. [2023-12-21 02:04:32,919 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 4.818181818181818) internal successors, (53), 11 states have internal predecessors, (53), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-12-21 02:04:32,919 INFO L276 IsEmpty]: Start isEmpty. Operand 258 states and 345 transitions. [2023-12-21 02:04:32,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2023-12-21 02:04:32,920 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 02:04:32,920 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:04:32,920 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2023-12-21 02:04:32,920 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 02:04:32,920 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 02:04:32,921 INFO L85 PathProgramCache]: Analyzing trace with hash -1679132459, now seen corresponding path program 1 times [2023-12-21 02:04:32,921 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 02:04:32,921 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [515352087] [2023-12-21 02:04:32,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:04:32,921 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 02:04:32,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:33,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 02:04:33,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:33,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 02:04:33,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:33,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 02:04:33,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:33,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 02:04:33,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:33,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-21 02:04:33,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:33,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 02:04:33,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:33,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-21 02:04:33,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:33,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 02:04:33,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:33,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 02:04:33,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:33,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 02:04:33,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:33,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-21 02:04:33,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:33,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 02:04:33,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:33,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-21 02:04:33,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:33,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-21 02:04:33,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:33,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-21 02:04:33,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:33,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-21 02:04:33,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:33,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-21 02:04:33,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:33,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-21 02:04:33,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:33,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-21 02:04:33,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:33,218 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2023-12-21 02:04:33,218 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 02:04:33,218 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [515352087] [2023-12-21 02:04:33,218 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [515352087] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 02:04:33,219 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 02:04:33,219 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-21 02:04:33,219 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [13431472] [2023-12-21 02:04:33,219 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 02:04:33,219 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-21 02:04:33,219 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 02:04:33,219 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-21 02:04:33,219 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2023-12-21 02:04:33,220 INFO L87 Difference]: Start difference. First operand 258 states and 345 transitions. Second operand has 10 states, 10 states have (on average 5.3) internal successors, (53), 10 states have internal predecessors, (53), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-12-21 02:04:33,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 02:04:33,654 INFO L93 Difference]: Finished difference Result 578 states and 772 transitions. [2023-12-21 02:04:33,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-21 02:04:33,660 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.3) internal successors, (53), 10 states have internal predecessors, (53), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 145 [2023-12-21 02:04:33,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 02:04:33,661 INFO L225 Difference]: With dead ends: 578 [2023-12-21 02:04:33,661 INFO L226 Difference]: Without dead ends: 321 [2023-12-21 02:04:33,662 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=50, Invalid=132, Unknown=0, NotChecked=0, Total=182 [2023-12-21 02:04:33,662 INFO L413 NwaCegarLoop]: 141 mSDtfsCounter, 256 mSDsluCounter, 364 mSDsCounter, 0 mSdLazyCounter, 581 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 256 SdHoareTripleChecker+Valid, 505 SdHoareTripleChecker+Invalid, 594 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 581 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-21 02:04:33,663 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [256 Valid, 505 Invalid, 594 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 581 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-21 02:04:33,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 321 states. [2023-12-21 02:04:33,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 321 to 258. [2023-12-21 02:04:33,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 258 states, 236 states have (on average 1.2923728813559323) internal successors, (305), 236 states have internal predecessors, (305), 19 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2023-12-21 02:04:33,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 258 states to 258 states and 343 transitions. [2023-12-21 02:04:33,695 INFO L78 Accepts]: Start accepts. Automaton has 258 states and 343 transitions. Word has length 145 [2023-12-21 02:04:33,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 02:04:33,695 INFO L495 AbstractCegarLoop]: Abstraction has 258 states and 343 transitions. [2023-12-21 02:04:33,695 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.3) internal successors, (53), 10 states have internal predecessors, (53), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-12-21 02:04:33,695 INFO L276 IsEmpty]: Start isEmpty. Operand 258 states and 343 transitions. [2023-12-21 02:04:33,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2023-12-21 02:04:33,696 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 02:04:33,696 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:04:33,696 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2023-12-21 02:04:33,696 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 02:04:33,697 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 02:04:33,697 INFO L85 PathProgramCache]: Analyzing trace with hash -270898736, now seen corresponding path program 1 times [2023-12-21 02:04:33,697 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 02:04:33,697 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1918371793] [2023-12-21 02:04:33,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:04:33,697 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 02:04:33,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:34,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 02:04:34,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:34,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 02:04:34,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:34,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 02:04:34,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:34,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 02:04:34,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:34,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-21 02:04:34,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:34,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 02:04:34,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:34,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-21 02:04:34,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:34,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 02:04:34,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:34,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 02:04:34,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:34,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 02:04:34,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:34,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-21 02:04:34,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:34,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 02:04:34,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:34,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-21 02:04:34,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:34,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-21 02:04:34,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:34,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-21 02:04:34,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:34,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-21 02:04:34,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:34,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-21 02:04:34,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:34,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-21 02:04:34,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:34,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-21 02:04:34,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:34,316 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2023-12-21 02:04:34,316 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 02:04:34,316 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1918371793] [2023-12-21 02:04:34,316 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1918371793] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 02:04:34,316 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 02:04:34,317 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2023-12-21 02:04:34,317 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1747470530] [2023-12-21 02:04:34,317 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 02:04:34,317 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-12-21 02:04:34,317 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 02:04:34,317 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-12-21 02:04:34,317 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=206, Unknown=0, NotChecked=0, Total=240 [2023-12-21 02:04:34,318 INFO L87 Difference]: Start difference. First operand 258 states and 343 transitions. Second operand has 16 states, 15 states have (on average 3.533333333333333) internal successors, (53), 16 states have internal predecessors, (53), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2023-12-21 02:04:35,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 02:04:35,725 INFO L93 Difference]: Finished difference Result 733 states and 958 transitions. [2023-12-21 02:04:35,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-12-21 02:04:35,725 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 3.533333333333333) internal successors, (53), 16 states have internal predecessors, (53), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) Word has length 145 [2023-12-21 02:04:35,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 02:04:35,727 INFO L225 Difference]: With dead ends: 733 [2023-12-21 02:04:35,727 INFO L226 Difference]: Without dead ends: 476 [2023-12-21 02:04:35,727 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 120 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=203, Invalid=789, Unknown=0, NotChecked=0, Total=992 [2023-12-21 02:04:35,728 INFO L413 NwaCegarLoop]: 198 mSDtfsCounter, 599 mSDsluCounter, 1528 mSDsCounter, 0 mSdLazyCounter, 1196 mSolverCounterSat, 89 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 599 SdHoareTripleChecker+Valid, 1726 SdHoareTripleChecker+Invalid, 1285 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 89 IncrementalHoareTripleChecker+Valid, 1196 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-21 02:04:35,728 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [599 Valid, 1726 Invalid, 1285 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [89 Valid, 1196 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-21 02:04:35,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 476 states. [2023-12-21 02:04:35,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 476 to 315. [2023-12-21 02:04:35,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 315 states, 293 states have (on average 1.2764505119453924) internal successors, (374), 293 states have internal predecessors, (374), 19 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2023-12-21 02:04:35,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 315 states to 315 states and 412 transitions. [2023-12-21 02:04:35,763 INFO L78 Accepts]: Start accepts. Automaton has 315 states and 412 transitions. Word has length 145 [2023-12-21 02:04:35,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 02:04:35,763 INFO L495 AbstractCegarLoop]: Abstraction has 315 states and 412 transitions. [2023-12-21 02:04:35,763 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 3.533333333333333) internal successors, (53), 16 states have internal predecessors, (53), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2023-12-21 02:04:35,764 INFO L276 IsEmpty]: Start isEmpty. Operand 315 states and 412 transitions. [2023-12-21 02:04:35,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2023-12-21 02:04:35,765 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 02:04:35,765 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:04:35,765 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2023-12-21 02:04:35,765 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 02:04:35,765 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 02:04:35,765 INFO L85 PathProgramCache]: Analyzing trace with hash -52044018, now seen corresponding path program 1 times [2023-12-21 02:04:35,765 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 02:04:35,765 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [491702851] [2023-12-21 02:04:35,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:04:35,766 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 02:04:35,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:36,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 02:04:36,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:36,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 02:04:36,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:36,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 02:04:36,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:36,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 02:04:36,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:36,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-21 02:04:36,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:36,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 02:04:36,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:36,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-21 02:04:36,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:36,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 02:04:36,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:36,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 02:04:36,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:36,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 02:04:36,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:36,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-21 02:04:36,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:36,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 02:04:36,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:36,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-21 02:04:36,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:36,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-21 02:04:36,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:36,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-21 02:04:36,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:36,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-21 02:04:36,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:36,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-21 02:04:36,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:36,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-21 02:04:36,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:36,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-21 02:04:36,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:36,161 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2023-12-21 02:04:36,161 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 02:04:36,161 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [491702851] [2023-12-21 02:04:36,161 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [491702851] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 02:04:36,161 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 02:04:36,162 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-21 02:04:36,162 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1970975405] [2023-12-21 02:04:36,162 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 02:04:36,162 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-21 02:04:36,162 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 02:04:36,162 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-21 02:04:36,162 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-12-21 02:04:36,163 INFO L87 Difference]: Start difference. First operand 315 states and 412 transitions. Second operand has 9 states, 9 states have (on average 5.888888888888889) internal successors, (53), 9 states have internal predecessors, (53), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-12-21 02:04:36,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 02:04:36,654 INFO L93 Difference]: Finished difference Result 745 states and 966 transitions. [2023-12-21 02:04:36,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-21 02:04:36,655 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.888888888888889) internal successors, (53), 9 states have internal predecessors, (53), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 145 [2023-12-21 02:04:36,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 02:04:36,656 INFO L225 Difference]: With dead ends: 745 [2023-12-21 02:04:36,656 INFO L226 Difference]: Without dead ends: 431 [2023-12-21 02:04:36,656 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=60, Invalid=150, Unknown=0, NotChecked=0, Total=210 [2023-12-21 02:04:36,657 INFO L413 NwaCegarLoop]: 195 mSDtfsCounter, 179 mSDsluCounter, 1081 mSDsCounter, 0 mSdLazyCounter, 442 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 179 SdHoareTripleChecker+Valid, 1276 SdHoareTripleChecker+Invalid, 445 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 442 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-21 02:04:36,657 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [179 Valid, 1276 Invalid, 445 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 442 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-21 02:04:36,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 431 states. [2023-12-21 02:04:36,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 431 to 308. [2023-12-21 02:04:36,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 308 states, 286 states have (on average 1.2587412587412588) internal successors, (360), 286 states have internal predecessors, (360), 19 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2023-12-21 02:04:36,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 308 states to 308 states and 398 transitions. [2023-12-21 02:04:36,700 INFO L78 Accepts]: Start accepts. Automaton has 308 states and 398 transitions. Word has length 145 [2023-12-21 02:04:36,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 02:04:36,700 INFO L495 AbstractCegarLoop]: Abstraction has 308 states and 398 transitions. [2023-12-21 02:04:36,700 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.888888888888889) internal successors, (53), 9 states have internal predecessors, (53), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-12-21 02:04:36,700 INFO L276 IsEmpty]: Start isEmpty. Operand 308 states and 398 transitions. [2023-12-21 02:04:36,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2023-12-21 02:04:36,701 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 02:04:36,701 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:04:36,701 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2023-12-21 02:04:36,701 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 02:04:36,701 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 02:04:36,702 INFO L85 PathProgramCache]: Analyzing trace with hash -1971450158, now seen corresponding path program 1 times [2023-12-21 02:04:36,702 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 02:04:36,702 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [924447282] [2023-12-21 02:04:36,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:04:36,702 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 02:04:36,717 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-21 02:04:36,717 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1492552228] [2023-12-21 02:04:36,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:04:36,718 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 02:04:36,718 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 02:04:36,720 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-21 02:04:36,759 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-21 02:04:36,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:37,004 INFO L262 TraceCheckSpWp]: Trace formula consists of 522 conjuncts, 111 conjunts are in the unsatisfiable core [2023-12-21 02:04:37,019 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 02:04:39,214 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2023-12-21 02:04:39,681 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2023-12-21 02:04:40,113 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2023-12-21 02:04:40,716 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2023-12-21 02:04:41,434 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 44 [2023-12-21 02:04:41,581 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 21 [2023-12-21 02:04:41,897 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 32 [2023-12-21 02:04:42,566 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 85 treesize of output 69 [2023-12-21 02:04:42,656 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 317 proven. 135 refuted. 0 times theorem prover too weak. 232 trivial. 0 not checked. [2023-12-21 02:04:42,656 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 02:04:54,447 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 02:04:54,447 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [924447282] [2023-12-21 02:04:54,447 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-21 02:04:54,447 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1492552228] [2023-12-21 02:04:54,447 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1492552228] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 02:04:54,447 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-12-21 02:04:54,448 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [28] total 28 [2023-12-21 02:04:54,448 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1498923801] [2023-12-21 02:04:54,448 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-12-21 02:04:54,448 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2023-12-21 02:04:54,448 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 02:04:54,449 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2023-12-21 02:04:54,449 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=345, Invalid=1816, Unknown=1, NotChecked=0, Total=2162 [2023-12-21 02:04:54,449 INFO L87 Difference]: Start difference. First operand 308 states and 398 transitions. Second operand has 29 states, 26 states have (on average 2.6153846153846154) internal successors, (68), 27 states have internal predecessors, (68), 6 states have call successors, (19), 4 states have call predecessors, (19), 6 states have return successors, (19), 4 states have call predecessors, (19), 6 states have call successors, (19) [2023-12-21 02:05:01,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 02:05:01,902 INFO L93 Difference]: Finished difference Result 937 states and 1207 transitions. [2023-12-21 02:05:01,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2023-12-21 02:05:01,905 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 26 states have (on average 2.6153846153846154) internal successors, (68), 27 states have internal predecessors, (68), 6 states have call successors, (19), 4 states have call predecessors, (19), 6 states have return successors, (19), 4 states have call predecessors, (19), 6 states have call successors, (19) Word has length 145 [2023-12-21 02:05:01,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 02:05:01,907 INFO L225 Difference]: With dead ends: 937 [2023-12-21 02:05:01,907 INFO L226 Difference]: Without dead ends: 630 [2023-12-21 02:05:01,909 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 237 GetRequests, 142 SyntacticMatches, 0 SemanticMatches, 95 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1852 ImplicationChecksByTransitivity, 16.8s TimeCoverageRelationStatistics Valid=1900, Invalid=7411, Unknown=1, NotChecked=0, Total=9312 [2023-12-21 02:05:01,910 INFO L413 NwaCegarLoop]: 150 mSDtfsCounter, 835 mSDsluCounter, 1968 mSDsCounter, 0 mSdLazyCounter, 3011 mSolverCounterSat, 214 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 837 SdHoareTripleChecker+Valid, 2118 SdHoareTripleChecker+Invalid, 3225 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 214 IncrementalHoareTripleChecker+Valid, 3011 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2023-12-21 02:05:01,910 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [837 Valid, 2118 Invalid, 3225 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [214 Valid, 3011 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2023-12-21 02:05:01,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 630 states. [2023-12-21 02:05:01,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 630 to 316. [2023-12-21 02:05:01,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 316 states, 292 states have (on average 1.2534246575342465) internal successors, (366), 292 states have internal predecessors, (366), 19 states have call successors, (19), 4 states have call predecessors, (19), 4 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2023-12-21 02:05:01,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 316 states to 316 states and 404 transitions. [2023-12-21 02:05:01,958 INFO L78 Accepts]: Start accepts. Automaton has 316 states and 404 transitions. Word has length 145 [2023-12-21 02:05:01,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 02:05:01,958 INFO L495 AbstractCegarLoop]: Abstraction has 316 states and 404 transitions. [2023-12-21 02:05:01,958 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 26 states have (on average 2.6153846153846154) internal successors, (68), 27 states have internal predecessors, (68), 6 states have call successors, (19), 4 states have call predecessors, (19), 6 states have return successors, (19), 4 states have call predecessors, (19), 6 states have call successors, (19) [2023-12-21 02:05:01,958 INFO L276 IsEmpty]: Start isEmpty. Operand 316 states and 404 transitions. [2023-12-21 02:05:01,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2023-12-21 02:05:01,959 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 02:05:01,959 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:05:01,978 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-12-21 02:05:02,166 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable31 [2023-12-21 02:05:02,167 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 02:05:02,167 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 02:05:02,167 INFO L85 PathProgramCache]: Analyzing trace with hash -1069290478, now seen corresponding path program 1 times [2023-12-21 02:05:02,167 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 02:05:02,167 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [686978598] [2023-12-21 02:05:02,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:05:02,167 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 02:05:02,198 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-21 02:05:02,198 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [91306963] [2023-12-21 02:05:02,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:05:02,198 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 02:05:02,198 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 02:05:02,210 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-21 02:05:02,211 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-21 02:05:02,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:02,430 INFO L262 TraceCheckSpWp]: Trace formula consists of 520 conjuncts, 65 conjunts are in the unsatisfiable core [2023-12-21 02:05:02,436 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 02:05:04,080 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2023-12-21 02:05:04,381 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-21 02:05:04,381 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2023-12-21 02:05:04,417 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 21 [2023-12-21 02:05:04,543 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 32 [2023-12-21 02:05:05,071 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-21 02:05:05,075 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-21 02:05:05,075 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 78 treesize of output 58 [2023-12-21 02:05:05,082 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 30 [2023-12-21 02:05:05,152 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 123 refuted. 0 times theorem prover too weak. 561 trivial. 0 not checked. [2023-12-21 02:05:05,152 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 02:05:05,631 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 02:05:05,631 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [686978598] [2023-12-21 02:05:05,631 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-21 02:05:05,631 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [91306963] [2023-12-21 02:05:05,631 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [91306963] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 02:05:05,631 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-12-21 02:05:05,631 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19] total 19 [2023-12-21 02:05:05,631 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [647373841] [2023-12-21 02:05:05,631 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-12-21 02:05:05,632 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2023-12-21 02:05:05,632 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 02:05:05,632 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2023-12-21 02:05:05,632 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=156, Invalid=774, Unknown=0, NotChecked=0, Total=930 [2023-12-21 02:05:05,633 INFO L87 Difference]: Start difference. First operand 316 states and 404 transitions. Second operand has 20 states, 19 states have (on average 3.1052631578947367) internal successors, (59), 18 states have internal predecessors, (59), 2 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2023-12-21 02:05:09,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 02:05:09,419 INFO L93 Difference]: Finished difference Result 955 states and 1215 transitions. [2023-12-21 02:05:09,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2023-12-21 02:05:09,420 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 19 states have (on average 3.1052631578947367) internal successors, (59), 18 states have internal predecessors, (59), 2 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 145 [2023-12-21 02:05:09,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 02:05:09,423 INFO L225 Difference]: With dead ends: 955 [2023-12-21 02:05:09,423 INFO L226 Difference]: Without dead ends: 640 [2023-12-21 02:05:09,425 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 213 GetRequests, 146 SyntacticMatches, 0 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 970 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=1028, Invalid=3664, Unknown=0, NotChecked=0, Total=4692 [2023-12-21 02:05:09,428 INFO L413 NwaCegarLoop]: 217 mSDtfsCounter, 665 mSDsluCounter, 1567 mSDsCounter, 0 mSdLazyCounter, 2583 mSolverCounterSat, 167 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 665 SdHoareTripleChecker+Valid, 1784 SdHoareTripleChecker+Invalid, 2750 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 167 IncrementalHoareTripleChecker+Valid, 2583 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2023-12-21 02:05:09,430 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [665 Valid, 1784 Invalid, 2750 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [167 Valid, 2583 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2023-12-21 02:05:09,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 640 states. [2023-12-21 02:05:09,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 640 to 316. [2023-12-21 02:05:09,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 316 states, 292 states have (on average 1.2534246575342465) internal successors, (366), 292 states have internal predecessors, (366), 19 states have call successors, (19), 4 states have call predecessors, (19), 4 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2023-12-21 02:05:09,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 316 states to 316 states and 404 transitions. [2023-12-21 02:05:09,510 INFO L78 Accepts]: Start accepts. Automaton has 316 states and 404 transitions. Word has length 145 [2023-12-21 02:05:09,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 02:05:09,511 INFO L495 AbstractCegarLoop]: Abstraction has 316 states and 404 transitions. [2023-12-21 02:05:09,511 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 19 states have (on average 3.1052631578947367) internal successors, (59), 18 states have internal predecessors, (59), 2 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2023-12-21 02:05:09,511 INFO L276 IsEmpty]: Start isEmpty. Operand 316 states and 404 transitions. [2023-12-21 02:05:09,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2023-12-21 02:05:09,512 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 02:05:09,512 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:05:09,519 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-12-21 02:05:09,718 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable32 [2023-12-21 02:05:09,719 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 02:05:09,719 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 02:05:09,719 INFO L85 PathProgramCache]: Analyzing trace with hash -751189549, now seen corresponding path program 1 times [2023-12-21 02:05:09,719 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 02:05:09,719 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1253840222] [2023-12-21 02:05:09,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:05:09,719 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 02:05:09,733 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-21 02:05:09,733 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1234119482] [2023-12-21 02:05:09,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:05:09,733 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 02:05:09,733 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 02:05:09,745 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-21 02:05:09,747 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-12-21 02:05:09,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:09,961 INFO L262 TraceCheckSpWp]: Trace formula consists of 517 conjuncts, 41 conjunts are in the unsatisfiable core [2023-12-21 02:05:09,969 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 02:05:10,632 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2023-12-21 02:05:10,678 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2023-12-21 02:05:10,770 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2023-12-21 02:05:10,782 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2023-12-21 02:05:10,825 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 54 refuted. 0 times theorem prover too weak. 630 trivial. 0 not checked. [2023-12-21 02:05:10,825 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 02:05:11,151 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2023-12-21 02:05:11,151 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 02:05:11,151 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1253840222] [2023-12-21 02:05:11,151 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-21 02:05:11,151 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1234119482] [2023-12-21 02:05:11,151 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1234119482] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-21 02:05:11,151 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-21 02:05:11,151 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [12] total 21 [2023-12-21 02:05:11,166 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [902719726] [2023-12-21 02:05:11,166 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 02:05:11,167 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-12-21 02:05:11,167 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 02:05:11,167 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-12-21 02:05:11,167 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=357, Unknown=0, NotChecked=0, Total=420 [2023-12-21 02:05:11,167 INFO L87 Difference]: Start difference. First operand 316 states and 404 transitions. Second operand has 12 states, 12 states have (on average 4.5) internal successors, (54), 12 states have internal predecessors, (54), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-12-21 02:05:11,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 02:05:11,974 INFO L93 Difference]: Finished difference Result 699 states and 897 transitions. [2023-12-21 02:05:11,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-21 02:05:11,974 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.5) internal successors, (54), 12 states have internal predecessors, (54), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 146 [2023-12-21 02:05:11,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 02:05:11,975 INFO L225 Difference]: With dead ends: 699 [2023-12-21 02:05:11,976 INFO L226 Difference]: Without dead ends: 384 [2023-12-21 02:05:11,976 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 301 GetRequests, 272 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 157 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=162, Invalid=768, Unknown=0, NotChecked=0, Total=930 [2023-12-21 02:05:11,977 INFO L413 NwaCegarLoop]: 191 mSDtfsCounter, 342 mSDsluCounter, 1038 mSDsCounter, 0 mSdLazyCounter, 625 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 342 SdHoareTripleChecker+Valid, 1229 SdHoareTripleChecker+Invalid, 674 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 625 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-21 02:05:11,977 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [342 Valid, 1229 Invalid, 674 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 625 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-21 02:05:11,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 384 states. [2023-12-21 02:05:12,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 384 to 268. [2023-12-21 02:05:12,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 268 states, 244 states have (on average 1.2827868852459017) internal successors, (313), 244 states have internal predecessors, (313), 19 states have call successors, (19), 4 states have call predecessors, (19), 4 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2023-12-21 02:05:12,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 268 states to 268 states and 351 transitions. [2023-12-21 02:05:12,037 INFO L78 Accepts]: Start accepts. Automaton has 268 states and 351 transitions. Word has length 146 [2023-12-21 02:05:12,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 02:05:12,037 INFO L495 AbstractCegarLoop]: Abstraction has 268 states and 351 transitions. [2023-12-21 02:05:12,037 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.5) internal successors, (54), 12 states have internal predecessors, (54), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-12-21 02:05:12,037 INFO L276 IsEmpty]: Start isEmpty. Operand 268 states and 351 transitions. [2023-12-21 02:05:12,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2023-12-21 02:05:12,038 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 02:05:12,038 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:05:12,050 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-12-21 02:05:12,244 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 02:05:12,244 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 02:05:12,245 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 02:05:12,245 INFO L85 PathProgramCache]: Analyzing trace with hash 240761604, now seen corresponding path program 1 times [2023-12-21 02:05:12,245 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 02:05:12,245 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1793919565] [2023-12-21 02:05:12,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:05:12,245 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 02:05:12,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:12,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 02:05:12,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:12,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 02:05:12,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:12,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 02:05:12,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:12,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 02:05:12,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:12,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-21 02:05:12,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:12,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 02:05:12,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:12,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-21 02:05:12,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:12,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 02:05:12,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:12,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 02:05:12,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:12,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 02:05:12,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:12,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-21 02:05:12,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:12,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 02:05:12,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:12,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-21 02:05:12,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:12,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-21 02:05:12,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:12,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-21 02:05:12,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:12,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-21 02:05:12,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:12,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-21 02:05:12,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:12,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-21 02:05:12,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:12,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-21 02:05:12,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:12,474 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2023-12-21 02:05:12,474 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 02:05:12,474 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1793919565] [2023-12-21 02:05:12,474 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1793919565] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 02:05:12,474 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 02:05:12,474 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-21 02:05:12,475 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [734600693] [2023-12-21 02:05:12,476 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 02:05:12,476 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-21 02:05:12,476 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 02:05:12,476 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-21 02:05:12,476 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2023-12-21 02:05:12,476 INFO L87 Difference]: Start difference. First operand 268 states and 351 transitions. Second operand has 8 states, 8 states have (on average 6.75) internal successors, (54), 8 states have internal predecessors, (54), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-12-21 02:05:12,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 02:05:12,646 INFO L93 Difference]: Finished difference Result 653 states and 847 transitions. [2023-12-21 02:05:12,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-21 02:05:12,646 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.75) internal successors, (54), 8 states have internal predecessors, (54), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 146 [2023-12-21 02:05:12,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 02:05:12,647 INFO L225 Difference]: With dead ends: 653 [2023-12-21 02:05:12,647 INFO L226 Difference]: Without dead ends: 386 [2023-12-21 02:05:12,648 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2023-12-21 02:05:12,650 INFO L413 NwaCegarLoop]: 143 mSDtfsCounter, 251 mSDsluCounter, 561 mSDsCounter, 0 mSdLazyCounter, 100 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 251 SdHoareTripleChecker+Valid, 704 SdHoareTripleChecker+Invalid, 104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 02:05:12,650 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [251 Valid, 704 Invalid, 104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 100 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 02:05:12,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 386 states. [2023-12-21 02:05:12,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 386 to 286. [2023-12-21 02:05:12,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 286 states, 262 states have (on average 1.2633587786259541) internal successors, (331), 262 states have internal predecessors, (331), 19 states have call successors, (19), 4 states have call predecessors, (19), 4 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2023-12-21 02:05:12,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 286 states to 286 states and 369 transitions. [2023-12-21 02:05:12,695 INFO L78 Accepts]: Start accepts. Automaton has 286 states and 369 transitions. Word has length 146 [2023-12-21 02:05:12,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 02:05:12,695 INFO L495 AbstractCegarLoop]: Abstraction has 286 states and 369 transitions. [2023-12-21 02:05:12,695 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.75) internal successors, (54), 8 states have internal predecessors, (54), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-12-21 02:05:12,695 INFO L276 IsEmpty]: Start isEmpty. Operand 286 states and 369 transitions. [2023-12-21 02:05:12,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2023-12-21 02:05:12,696 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 02:05:12,697 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:05:12,697 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2023-12-21 02:05:12,697 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 02:05:12,697 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 02:05:12,697 INFO L85 PathProgramCache]: Analyzing trace with hash -576886846, now seen corresponding path program 1 times [2023-12-21 02:05:12,697 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 02:05:12,697 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1838605017] [2023-12-21 02:05:12,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:05:12,697 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 02:05:12,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:12,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 02:05:12,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:12,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 02:05:12,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:12,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 02:05:12,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:12,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 02:05:12,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:12,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-21 02:05:12,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:12,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 02:05:12,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:12,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-21 02:05:12,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:12,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 02:05:12,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:12,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 02:05:12,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:12,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 02:05:12,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:12,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-21 02:05:12,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:12,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 02:05:12,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:12,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-21 02:05:12,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:12,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-21 02:05:12,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:12,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-21 02:05:12,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:12,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-21 02:05:12,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:12,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-21 02:05:12,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:12,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-21 02:05:12,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:12,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-21 02:05:12,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:12,853 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2023-12-21 02:05:12,853 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 02:05:12,853 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1838605017] [2023-12-21 02:05:12,853 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1838605017] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 02:05:12,853 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 02:05:12,853 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-21 02:05:12,853 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [523667516] [2023-12-21 02:05:12,853 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 02:05:12,853 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-21 02:05:12,853 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 02:05:12,854 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-21 02:05:12,854 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-21 02:05:12,854 INFO L87 Difference]: Start difference. First operand 286 states and 369 transitions. Second operand has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-12-21 02:05:12,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 02:05:12,988 INFO L93 Difference]: Finished difference Result 621 states and 804 transitions. [2023-12-21 02:05:12,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-21 02:05:12,988 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 146 [2023-12-21 02:05:12,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 02:05:12,989 INFO L225 Difference]: With dead ends: 621 [2023-12-21 02:05:12,989 INFO L226 Difference]: Without dead ends: 336 [2023-12-21 02:05:12,990 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2023-12-21 02:05:12,990 INFO L413 NwaCegarLoop]: 140 mSDtfsCounter, 173 mSDsluCounter, 387 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 173 SdHoareTripleChecker+Valid, 527 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 02:05:12,990 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [173 Valid, 527 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 02:05:12,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 336 states. [2023-12-21 02:05:13,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 336 to 275. [2023-12-21 02:05:13,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 275 states, 251 states have (on average 1.2709163346613546) internal successors, (319), 251 states have internal predecessors, (319), 19 states have call successors, (19), 4 states have call predecessors, (19), 4 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2023-12-21 02:05:13,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 275 states to 275 states and 357 transitions. [2023-12-21 02:05:13,033 INFO L78 Accepts]: Start accepts. Automaton has 275 states and 357 transitions. Word has length 146 [2023-12-21 02:05:13,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 02:05:13,033 INFO L495 AbstractCegarLoop]: Abstraction has 275 states and 357 transitions. [2023-12-21 02:05:13,033 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-12-21 02:05:13,033 INFO L276 IsEmpty]: Start isEmpty. Operand 275 states and 357 transitions. [2023-12-21 02:05:13,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2023-12-21 02:05:13,034 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 02:05:13,034 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:05:13,034 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2023-12-21 02:05:13,034 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 02:05:13,034 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 02:05:13,035 INFO L85 PathProgramCache]: Analyzing trace with hash -896374478, now seen corresponding path program 1 times [2023-12-21 02:05:13,035 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 02:05:13,035 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [245760793] [2023-12-21 02:05:13,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:05:13,035 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 02:05:13,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:13,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 02:05:13,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:13,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 02:05:13,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:13,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 02:05:13,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:13,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 02:05:13,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:13,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-21 02:05:13,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:13,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 02:05:13,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:13,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-21 02:05:13,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:13,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 02:05:13,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:13,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 02:05:13,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:13,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 02:05:13,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:13,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-21 02:05:13,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:13,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 02:05:13,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:13,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-21 02:05:13,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:13,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-21 02:05:13,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:13,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-21 02:05:13,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:13,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-21 02:05:13,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:13,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-21 02:05:13,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:13,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-21 02:05:13,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:13,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-21 02:05:13,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:13,196 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2023-12-21 02:05:13,196 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 02:05:13,196 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [245760793] [2023-12-21 02:05:13,196 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [245760793] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 02:05:13,196 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 02:05:13,196 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-21 02:05:13,196 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [836168439] [2023-12-21 02:05:13,196 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 02:05:13,196 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-21 02:05:13,196 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 02:05:13,197 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-21 02:05:13,197 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-21 02:05:13,197 INFO L87 Difference]: Start difference. First operand 275 states and 357 transitions. Second operand has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-12-21 02:05:13,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 02:05:13,319 INFO L93 Difference]: Finished difference Result 583 states and 758 transitions. [2023-12-21 02:05:13,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-21 02:05:13,319 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 146 [2023-12-21 02:05:13,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 02:05:13,320 INFO L225 Difference]: With dead ends: 583 [2023-12-21 02:05:13,320 INFO L226 Difference]: Without dead ends: 307 [2023-12-21 02:05:13,321 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2023-12-21 02:05:13,321 INFO L413 NwaCegarLoop]: 168 mSDtfsCounter, 195 mSDsluCounter, 407 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 195 SdHoareTripleChecker+Valid, 575 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 02:05:13,321 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [195 Valid, 575 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 02:05:13,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 307 states. [2023-12-21 02:05:13,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 307 to 266. [2023-12-21 02:05:13,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 266 states, 242 states have (on average 1.2727272727272727) internal successors, (308), 242 states have internal predecessors, (308), 19 states have call successors, (19), 4 states have call predecessors, (19), 4 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2023-12-21 02:05:13,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 346 transitions. [2023-12-21 02:05:13,364 INFO L78 Accepts]: Start accepts. Automaton has 266 states and 346 transitions. Word has length 146 [2023-12-21 02:05:13,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 02:05:13,364 INFO L495 AbstractCegarLoop]: Abstraction has 266 states and 346 transitions. [2023-12-21 02:05:13,364 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-12-21 02:05:13,364 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 346 transitions. [2023-12-21 02:05:13,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2023-12-21 02:05:13,365 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 02:05:13,365 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:05:13,365 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2023-12-21 02:05:13,365 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 02:05:13,365 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 02:05:13,366 INFO L85 PathProgramCache]: Analyzing trace with hash 1404448112, now seen corresponding path program 1 times [2023-12-21 02:05:13,366 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 02:05:13,366 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1219149875] [2023-12-21 02:05:13,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:05:13,366 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 02:05:13,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:13,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 02:05:13,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:13,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 02:05:13,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:13,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 02:05:13,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:13,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 02:05:13,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:13,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-21 02:05:13,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:13,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 02:05:13,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:13,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-21 02:05:13,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:13,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 02:05:13,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:13,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 02:05:13,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:13,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 02:05:13,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:13,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-21 02:05:13,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:13,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 02:05:13,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:13,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-21 02:05:13,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:13,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-21 02:05:13,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:13,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-21 02:05:13,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:13,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-21 02:05:13,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:13,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-21 02:05:13,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:13,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-21 02:05:13,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:13,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-21 02:05:13,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:13,514 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2023-12-21 02:05:13,514 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 02:05:13,514 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1219149875] [2023-12-21 02:05:13,514 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1219149875] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 02:05:13,514 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 02:05:13,514 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-21 02:05:13,514 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [825027334] [2023-12-21 02:05:13,514 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 02:05:13,514 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-21 02:05:13,514 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 02:05:13,515 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-21 02:05:13,515 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-21 02:05:13,515 INFO L87 Difference]: Start difference. First operand 266 states and 346 transitions. Second operand has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-12-21 02:05:13,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 02:05:13,650 INFO L93 Difference]: Finished difference Result 566 states and 737 transitions. [2023-12-21 02:05:13,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-21 02:05:13,650 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 146 [2023-12-21 02:05:13,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 02:05:13,651 INFO L225 Difference]: With dead ends: 566 [2023-12-21 02:05:13,651 INFO L226 Difference]: Without dead ends: 301 [2023-12-21 02:05:13,651 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2023-12-21 02:05:13,652 INFO L413 NwaCegarLoop]: 172 mSDtfsCounter, 173 mSDsluCounter, 418 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 173 SdHoareTripleChecker+Valid, 590 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 02:05:13,652 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [173 Valid, 590 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 02:05:13,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 301 states. [2023-12-21 02:05:13,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 301 to 261. [2023-12-21 02:05:13,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 261 states, 237 states have (on average 1.2742616033755274) internal successors, (302), 237 states have internal predecessors, (302), 19 states have call successors, (19), 4 states have call predecessors, (19), 4 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2023-12-21 02:05:13,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 340 transitions. [2023-12-21 02:05:13,695 INFO L78 Accepts]: Start accepts. Automaton has 261 states and 340 transitions. Word has length 146 [2023-12-21 02:05:13,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 02:05:13,695 INFO L495 AbstractCegarLoop]: Abstraction has 261 states and 340 transitions. [2023-12-21 02:05:13,695 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-12-21 02:05:13,695 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 340 transitions. [2023-12-21 02:05:13,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2023-12-21 02:05:13,696 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 02:05:13,696 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:05:13,696 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2023-12-21 02:05:13,696 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 02:05:13,696 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 02:05:13,696 INFO L85 PathProgramCache]: Analyzing trace with hash -1504940402, now seen corresponding path program 1 times [2023-12-21 02:05:13,697 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 02:05:13,697 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2049000492] [2023-12-21 02:05:13,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:05:13,697 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 02:05:13,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:14,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 02:05:14,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:14,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 02:05:14,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:14,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 02:05:14,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:14,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 02:05:14,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:14,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-21 02:05:14,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:14,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 02:05:14,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:14,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-21 02:05:14,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:14,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 02:05:14,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:14,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 02:05:14,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:14,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 02:05:14,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:14,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-21 02:05:14,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:14,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 02:05:14,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:14,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-21 02:05:14,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:14,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-21 02:05:14,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:14,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-21 02:05:14,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:14,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-21 02:05:14,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:14,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-21 02:05:14,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:14,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-21 02:05:14,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:14,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-21 02:05:14,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:14,451 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2023-12-21 02:05:14,451 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 02:05:14,451 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2049000492] [2023-12-21 02:05:14,451 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2049000492] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 02:05:14,451 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 02:05:14,451 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2023-12-21 02:05:14,451 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1712441084] [2023-12-21 02:05:14,451 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 02:05:14,452 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-12-21 02:05:14,452 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 02:05:14,452 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-12-21 02:05:14,452 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2023-12-21 02:05:14,453 INFO L87 Difference]: Start difference. First operand 261 states and 340 transitions. Second operand has 14 states, 14 states have (on average 3.9285714285714284) internal successors, (55), 14 states have internal predecessors, (55), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2023-12-21 02:05:16,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 02:05:16,119 INFO L93 Difference]: Finished difference Result 636 states and 826 transitions. [2023-12-21 02:05:16,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-21 02:05:16,120 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 3.9285714285714284) internal successors, (55), 14 states have internal predecessors, (55), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) Word has length 147 [2023-12-21 02:05:16,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 02:05:16,121 INFO L225 Difference]: With dead ends: 636 [2023-12-21 02:05:16,121 INFO L226 Difference]: Without dead ends: 376 [2023-12-21 02:05:16,122 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 40 SyntacticMatches, 1 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 78 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=138, Invalid=462, Unknown=0, NotChecked=0, Total=600 [2023-12-21 02:05:16,122 INFO L413 NwaCegarLoop]: 125 mSDtfsCounter, 309 mSDsluCounter, 777 mSDsCounter, 0 mSdLazyCounter, 877 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 309 SdHoareTripleChecker+Valid, 902 SdHoareTripleChecker+Invalid, 912 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 877 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-12-21 02:05:16,123 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [309 Valid, 902 Invalid, 912 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 877 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-12-21 02:05:16,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 376 states. [2023-12-21 02:05:16,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 376 to 263. [2023-12-21 02:05:16,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 263 states, 239 states have (on average 1.2719665271966527) internal successors, (304), 239 states have internal predecessors, (304), 19 states have call successors, (19), 4 states have call predecessors, (19), 4 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2023-12-21 02:05:16,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 263 states to 263 states and 342 transitions. [2023-12-21 02:05:16,234 INFO L78 Accepts]: Start accepts. Automaton has 263 states and 342 transitions. Word has length 147 [2023-12-21 02:05:16,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 02:05:16,234 INFO L495 AbstractCegarLoop]: Abstraction has 263 states and 342 transitions. [2023-12-21 02:05:16,234 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 3.9285714285714284) internal successors, (55), 14 states have internal predecessors, (55), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2023-12-21 02:05:16,234 INFO L276 IsEmpty]: Start isEmpty. Operand 263 states and 342 transitions. [2023-12-21 02:05:16,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2023-12-21 02:05:16,235 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 02:05:16,235 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:05:16,235 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2023-12-21 02:05:16,236 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 02:05:16,236 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 02:05:16,236 INFO L85 PathProgramCache]: Analyzing trace with hash 1778909644, now seen corresponding path program 1 times [2023-12-21 02:05:16,236 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 02:05:16,236 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [907619792] [2023-12-21 02:05:16,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:05:16,236 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 02:05:16,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:16,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 02:05:16,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:16,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 02:05:16,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:16,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 02:05:16,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:16,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 02:05:16,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:16,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-21 02:05:16,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:16,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 02:05:16,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:16,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-21 02:05:16,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:16,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 02:05:16,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:16,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 02:05:16,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:16,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 02:05:16,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:16,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-21 02:05:16,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:16,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 02:05:16,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:16,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-21 02:05:16,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:16,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-21 02:05:16,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:16,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-21 02:05:16,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:16,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-21 02:05:16,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:16,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-21 02:05:16,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:16,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-21 02:05:16,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:16,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-21 02:05:16,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:16,492 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2023-12-21 02:05:16,492 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 02:05:16,492 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [907619792] [2023-12-21 02:05:16,492 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [907619792] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 02:05:16,492 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 02:05:16,492 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-21 02:05:16,493 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [822250377] [2023-12-21 02:05:16,493 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 02:05:16,494 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-21 02:05:16,494 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 02:05:16,494 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-21 02:05:16,494 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-21 02:05:16,494 INFO L87 Difference]: Start difference. First operand 263 states and 342 transitions. Second operand has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-12-21 02:05:16,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 02:05:16,895 INFO L93 Difference]: Finished difference Result 633 states and 816 transitions. [2023-12-21 02:05:16,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-21 02:05:16,896 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 147 [2023-12-21 02:05:16,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 02:05:16,897 INFO L225 Difference]: With dead ends: 633 [2023-12-21 02:05:16,897 INFO L226 Difference]: Without dead ends: 371 [2023-12-21 02:05:16,898 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2023-12-21 02:05:16,898 INFO L413 NwaCegarLoop]: 196 mSDtfsCounter, 155 mSDsluCounter, 516 mSDsCounter, 0 mSdLazyCounter, 274 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 155 SdHoareTripleChecker+Valid, 712 SdHoareTripleChecker+Invalid, 274 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 274 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-21 02:05:16,898 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [155 Valid, 712 Invalid, 274 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 274 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-21 02:05:16,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 371 states. [2023-12-21 02:05:16,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 371 to 263. [2023-12-21 02:05:16,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 263 states, 239 states have (on average 1.2635983263598327) internal successors, (302), 239 states have internal predecessors, (302), 19 states have call successors, (19), 4 states have call predecessors, (19), 4 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2023-12-21 02:05:16,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 263 states to 263 states and 340 transitions. [2023-12-21 02:05:16,944 INFO L78 Accepts]: Start accepts. Automaton has 263 states and 340 transitions. Word has length 147 [2023-12-21 02:05:16,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 02:05:16,944 INFO L495 AbstractCegarLoop]: Abstraction has 263 states and 340 transitions. [2023-12-21 02:05:16,944 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-12-21 02:05:16,944 INFO L276 IsEmpty]: Start isEmpty. Operand 263 states and 340 transitions. [2023-12-21 02:05:16,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2023-12-21 02:05:16,945 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 02:05:16,945 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:05:16,945 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2023-12-21 02:05:16,945 INFO L420 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 02:05:16,945 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 02:05:16,945 INFO L85 PathProgramCache]: Analyzing trace with hash 2136422030, now seen corresponding path program 1 times [2023-12-21 02:05:16,945 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 02:05:16,945 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1460999357] [2023-12-21 02:05:16,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:05:16,946 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 02:05:16,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:17,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 02:05:17,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:17,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 02:05:17,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:17,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 02:05:17,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:17,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 02:05:17,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:17,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-21 02:05:17,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:17,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 02:05:17,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:17,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-21 02:05:17,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:17,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 02:05:17,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:17,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 02:05:17,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:17,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 02:05:17,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:17,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-21 02:05:17,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:17,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 02:05:17,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:17,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-21 02:05:17,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:17,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-21 02:05:17,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:17,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-21 02:05:17,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:17,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-21 02:05:17,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:17,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-21 02:05:17,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:17,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-21 02:05:17,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:17,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-21 02:05:17,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:17,220 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2023-12-21 02:05:17,220 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 02:05:17,220 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1460999357] [2023-12-21 02:05:17,221 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1460999357] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 02:05:17,221 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 02:05:17,221 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-21 02:05:17,221 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1209443168] [2023-12-21 02:05:17,221 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 02:05:17,221 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-21 02:05:17,221 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 02:05:17,221 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-21 02:05:17,221 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2023-12-21 02:05:17,222 INFO L87 Difference]: Start difference. First operand 263 states and 340 transitions. Second operand has 10 states, 10 states have (on average 5.5) internal successors, (55), 10 states have internal predecessors, (55), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-12-21 02:05:17,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 02:05:17,561 INFO L93 Difference]: Finished difference Result 609 states and 787 transitions. [2023-12-21 02:05:17,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-21 02:05:17,561 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.5) internal successors, (55), 10 states have internal predecessors, (55), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 147 [2023-12-21 02:05:17,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 02:05:17,562 INFO L225 Difference]: With dead ends: 609 [2023-12-21 02:05:17,562 INFO L226 Difference]: Without dead ends: 347 [2023-12-21 02:05:17,563 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=61, Invalid=179, Unknown=0, NotChecked=0, Total=240 [2023-12-21 02:05:17,563 INFO L413 NwaCegarLoop]: 194 mSDtfsCounter, 181 mSDsluCounter, 1349 mSDsCounter, 0 mSdLazyCounter, 281 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 181 SdHoareTripleChecker+Valid, 1543 SdHoareTripleChecker+Invalid, 282 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 281 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-21 02:05:17,563 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [181 Valid, 1543 Invalid, 282 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 281 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-21 02:05:17,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 347 states. [2023-12-21 02:05:17,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 347 to 289. [2023-12-21 02:05:17,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 289 states, 265 states have (on average 1.2641509433962264) internal successors, (335), 265 states have internal predecessors, (335), 19 states have call successors, (19), 4 states have call predecessors, (19), 4 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2023-12-21 02:05:17,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 289 states to 289 states and 373 transitions. [2023-12-21 02:05:17,608 INFO L78 Accepts]: Start accepts. Automaton has 289 states and 373 transitions. Word has length 147 [2023-12-21 02:05:17,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 02:05:17,609 INFO L495 AbstractCegarLoop]: Abstraction has 289 states and 373 transitions. [2023-12-21 02:05:17,609 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.5) internal successors, (55), 10 states have internal predecessors, (55), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-12-21 02:05:17,609 INFO L276 IsEmpty]: Start isEmpty. Operand 289 states and 373 transitions. [2023-12-21 02:05:17,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2023-12-21 02:05:17,609 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 02:05:17,609 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:05:17,610 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2023-12-21 02:05:17,610 INFO L420 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 02:05:17,610 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 02:05:17,610 INFO L85 PathProgramCache]: Analyzing trace with hash 213193996, now seen corresponding path program 1 times [2023-12-21 02:05:17,610 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 02:05:17,610 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1581972164] [2023-12-21 02:05:17,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:05:17,610 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 02:05:17,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:17,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 02:05:17,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:17,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 02:05:17,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:17,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 02:05:17,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:17,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 02:05:17,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:17,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-21 02:05:17,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:17,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 02:05:17,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:17,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-21 02:05:17,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:17,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 02:05:17,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:17,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 02:05:17,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:17,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 02:05:17,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:17,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-21 02:05:17,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:17,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 02:05:17,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:17,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-21 02:05:17,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:17,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-21 02:05:17,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:17,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-21 02:05:17,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:17,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-21 02:05:17,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:17,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-21 02:05:17,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:17,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-21 02:05:17,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:17,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-21 02:05:17,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:17,751 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2023-12-21 02:05:17,751 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 02:05:17,751 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1581972164] [2023-12-21 02:05:17,751 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1581972164] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 02:05:17,751 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 02:05:17,751 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-21 02:05:17,751 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [156250557] [2023-12-21 02:05:17,751 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 02:05:17,752 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 02:05:17,752 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 02:05:17,752 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 02:05:17,752 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-21 02:05:17,752 INFO L87 Difference]: Start difference. First operand 289 states and 373 transitions. Second operand has 5 states, 5 states have (on average 11.0) internal successors, (55), 5 states have internal predecessors, (55), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-12-21 02:05:18,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 02:05:18,012 INFO L93 Difference]: Finished difference Result 566 states and 734 transitions. [2023-12-21 02:05:18,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-21 02:05:18,013 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 5 states have internal predecessors, (55), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 147 [2023-12-21 02:05:18,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 02:05:18,014 INFO L225 Difference]: With dead ends: 566 [2023-12-21 02:05:18,014 INFO L226 Difference]: Without dead ends: 278 [2023-12-21 02:05:18,014 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2023-12-21 02:05:18,014 INFO L413 NwaCegarLoop]: 125 mSDtfsCounter, 49 mSDsluCounter, 163 mSDsCounter, 0 mSdLazyCounter, 161 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 288 SdHoareTripleChecker+Invalid, 162 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 161 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-21 02:05:18,015 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 288 Invalid, 162 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 161 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-21 02:05:18,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 278 states. [2023-12-21 02:05:18,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 278 to 251. [2023-12-21 02:05:18,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 251 states, 227 states have (on average 1.2599118942731278) internal successors, (286), 227 states have internal predecessors, (286), 19 states have call successors, (19), 4 states have call predecessors, (19), 4 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2023-12-21 02:05:18,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 251 states to 251 states and 324 transitions. [2023-12-21 02:05:18,067 INFO L78 Accepts]: Start accepts. Automaton has 251 states and 324 transitions. Word has length 147 [2023-12-21 02:05:18,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 02:05:18,067 INFO L495 AbstractCegarLoop]: Abstraction has 251 states and 324 transitions. [2023-12-21 02:05:18,068 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 5 states have internal predecessors, (55), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-12-21 02:05:18,068 INFO L276 IsEmpty]: Start isEmpty. Operand 251 states and 324 transitions. [2023-12-21 02:05:18,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2023-12-21 02:05:18,068 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 02:05:18,068 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:05:18,069 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2023-12-21 02:05:18,069 INFO L420 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 02:05:18,069 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 02:05:18,069 INFO L85 PathProgramCache]: Analyzing trace with hash 1308053598, now seen corresponding path program 1 times [2023-12-21 02:05:18,069 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 02:05:18,069 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [78432928] [2023-12-21 02:05:18,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:05:18,069 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 02:05:18,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:18,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 02:05:18,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:18,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 02:05:18,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:18,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 02:05:18,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:18,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 02:05:18,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:18,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-21 02:05:18,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:18,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 02:05:18,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:18,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-21 02:05:18,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:18,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 02:05:18,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:18,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 02:05:18,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:18,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 02:05:18,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:18,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-21 02:05:18,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:18,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 02:05:18,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:18,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-21 02:05:18,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:18,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-21 02:05:18,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:18,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-21 02:05:18,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:18,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-21 02:05:18,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:18,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-21 02:05:18,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:18,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-21 02:05:18,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:18,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-21 02:05:18,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:18,497 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2023-12-21 02:05:18,497 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 02:05:18,497 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [78432928] [2023-12-21 02:05:18,497 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [78432928] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 02:05:18,497 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 02:05:18,497 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-21 02:05:18,497 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1369467301] [2023-12-21 02:05:18,497 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 02:05:18,498 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 02:05:18,498 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 02:05:18,499 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 02:05:18,499 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-21 02:05:18,499 INFO L87 Difference]: Start difference. First operand 251 states and 324 transitions. Second operand has 5 states, 5 states have (on average 11.0) internal successors, (55), 5 states have internal predecessors, (55), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-12-21 02:05:18,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 02:05:18,690 INFO L93 Difference]: Finished difference Result 282 states and 365 transitions. [2023-12-21 02:05:18,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-21 02:05:18,690 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 5 states have internal predecessors, (55), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 147 [2023-12-21 02:05:18,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 02:05:18,691 INFO L225 Difference]: With dead ends: 282 [2023-12-21 02:05:18,691 INFO L226 Difference]: Without dead ends: 280 [2023-12-21 02:05:18,691 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-12-21 02:05:18,692 INFO L413 NwaCegarLoop]: 146 mSDtfsCounter, 72 mSDsluCounter, 344 mSDsCounter, 0 mSdLazyCounter, 113 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 490 SdHoareTripleChecker+Invalid, 114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 113 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 02:05:18,692 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 490 Invalid, 114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 113 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 02:05:18,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 280 states. [2023-12-21 02:05:18,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 280 to 253. [2023-12-21 02:05:18,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 253 states, 229 states have (on average 1.25764192139738) internal successors, (288), 229 states have internal predecessors, (288), 19 states have call successors, (19), 4 states have call predecessors, (19), 4 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2023-12-21 02:05:18,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 253 states to 253 states and 326 transitions. [2023-12-21 02:05:18,738 INFO L78 Accepts]: Start accepts. Automaton has 253 states and 326 transitions. Word has length 147 [2023-12-21 02:05:18,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 02:05:18,739 INFO L495 AbstractCegarLoop]: Abstraction has 253 states and 326 transitions. [2023-12-21 02:05:18,739 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 5 states have internal predecessors, (55), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-12-21 02:05:18,739 INFO L276 IsEmpty]: Start isEmpty. Operand 253 states and 326 transitions. [2023-12-21 02:05:18,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2023-12-21 02:05:18,740 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 02:05:18,740 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:05:18,740 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2023-12-21 02:05:18,740 INFO L420 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 02:05:18,740 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 02:05:18,740 INFO L85 PathProgramCache]: Analyzing trace with hash 1308113180, now seen corresponding path program 1 times [2023-12-21 02:05:18,741 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 02:05:18,741 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1094175038] [2023-12-21 02:05:18,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:05:18,741 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 02:05:18,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:18,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 02:05:18,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:18,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 02:05:18,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:18,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 02:05:18,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:18,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 02:05:18,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:18,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-21 02:05:18,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:18,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 02:05:18,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:18,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-21 02:05:18,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:18,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 02:05:18,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:18,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 02:05:18,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:18,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 02:05:18,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:18,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-21 02:05:18,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:18,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 02:05:18,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:18,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-21 02:05:18,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:18,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-21 02:05:18,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:18,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-21 02:05:18,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:18,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-21 02:05:18,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:18,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-21 02:05:18,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:19,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-21 02:05:19,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:19,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-21 02:05:19,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:19,002 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2023-12-21 02:05:19,003 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 02:05:19,003 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1094175038] [2023-12-21 02:05:19,003 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1094175038] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 02:05:19,003 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 02:05:19,003 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 02:05:19,003 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1117056680] [2023-12-21 02:05:19,003 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 02:05:19,003 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-21 02:05:19,003 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 02:05:19,004 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-21 02:05:19,004 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-21 02:05:19,004 INFO L87 Difference]: Start difference. First operand 253 states and 326 transitions. Second operand has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2023-12-21 02:05:19,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 02:05:19,217 INFO L93 Difference]: Finished difference Result 522 states and 673 transitions. [2023-12-21 02:05:19,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-21 02:05:19,217 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 147 [2023-12-21 02:05:19,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 02:05:19,218 INFO L225 Difference]: With dead ends: 522 [2023-12-21 02:05:19,218 INFO L226 Difference]: Without dead ends: 270 [2023-12-21 02:05:19,218 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2023-12-21 02:05:19,219 INFO L413 NwaCegarLoop]: 142 mSDtfsCounter, 241 mSDsluCounter, 315 mSDsCounter, 0 mSdLazyCounter, 101 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 241 SdHoareTripleChecker+Valid, 457 SdHoareTripleChecker+Invalid, 132 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 02:05:19,219 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [241 Valid, 457 Invalid, 132 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 101 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 02:05:19,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 270 states. [2023-12-21 02:05:19,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 270 to 269. [2023-12-21 02:05:19,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 269 states, 238 states have (on average 1.2436974789915967) internal successors, (296), 239 states have internal predecessors, (296), 25 states have call successors, (25), 5 states have call predecessors, (25), 5 states have return successors, (25), 24 states have call predecessors, (25), 25 states have call successors, (25) [2023-12-21 02:05:19,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 269 states to 269 states and 346 transitions. [2023-12-21 02:05:19,293 INFO L78 Accepts]: Start accepts. Automaton has 269 states and 346 transitions. Word has length 147 [2023-12-21 02:05:19,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 02:05:19,293 INFO L495 AbstractCegarLoop]: Abstraction has 269 states and 346 transitions. [2023-12-21 02:05:19,293 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2023-12-21 02:05:19,293 INFO L276 IsEmpty]: Start isEmpty. Operand 269 states and 346 transitions. [2023-12-21 02:05:19,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2023-12-21 02:05:19,294 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 02:05:19,294 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:05:19,294 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2023-12-21 02:05:19,294 INFO L420 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 02:05:19,294 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 02:05:19,294 INFO L85 PathProgramCache]: Analyzing trace with hash 1365371482, now seen corresponding path program 1 times [2023-12-21 02:05:19,294 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 02:05:19,294 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1089071068] [2023-12-21 02:05:19,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:05:19,295 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 02:05:19,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:19,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 02:05:19,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:19,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 02:05:19,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:19,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 02:05:19,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:19,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 02:05:19,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:19,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-21 02:05:19,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:19,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 02:05:19,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:19,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-21 02:05:19,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:19,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 02:05:19,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:19,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 02:05:19,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:19,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 02:05:19,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:19,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-21 02:05:19,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:19,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 02:05:19,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:19,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-21 02:05:19,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:19,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-21 02:05:19,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:19,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-21 02:05:19,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:19,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-21 02:05:19,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:19,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-21 02:05:19,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:19,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-21 02:05:19,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:19,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-21 02:05:19,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:19,393 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2023-12-21 02:05:19,393 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 02:05:19,393 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1089071068] [2023-12-21 02:05:19,393 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1089071068] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 02:05:19,393 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 02:05:19,393 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-21 02:05:19,393 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [19005749] [2023-12-21 02:05:19,393 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 02:05:19,394 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 02:05:19,394 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 02:05:19,394 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 02:05:19,394 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-21 02:05:19,394 INFO L87 Difference]: Start difference. First operand 269 states and 346 transitions. Second operand has 5 states, 5 states have (on average 11.0) internal successors, (55), 5 states have internal predecessors, (55), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-12-21 02:05:19,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 02:05:19,497 INFO L93 Difference]: Finished difference Result 531 states and 680 transitions. [2023-12-21 02:05:19,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-21 02:05:19,498 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 5 states have internal predecessors, (55), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 147 [2023-12-21 02:05:19,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 02:05:19,499 INFO L225 Difference]: With dead ends: 531 [2023-12-21 02:05:19,499 INFO L226 Difference]: Without dead ends: 275 [2023-12-21 02:05:19,499 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-12-21 02:05:19,500 INFO L413 NwaCegarLoop]: 130 mSDtfsCounter, 16 mSDsluCounter, 377 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 507 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 02:05:19,501 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 507 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 02:05:19,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 275 states. [2023-12-21 02:05:19,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 275 to 272. [2023-12-21 02:05:19,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 272 states, 241 states have (on average 1.2406639004149378) internal successors, (299), 242 states have internal predecessors, (299), 25 states have call successors, (25), 5 states have call predecessors, (25), 5 states have return successors, (25), 24 states have call predecessors, (25), 25 states have call successors, (25) [2023-12-21 02:05:19,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 272 states to 272 states and 349 transitions. [2023-12-21 02:05:19,580 INFO L78 Accepts]: Start accepts. Automaton has 272 states and 349 transitions. Word has length 147 [2023-12-21 02:05:19,581 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 02:05:19,581 INFO L495 AbstractCegarLoop]: Abstraction has 272 states and 349 transitions. [2023-12-21 02:05:19,581 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 5 states have internal predecessors, (55), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-12-21 02:05:19,581 INFO L276 IsEmpty]: Start isEmpty. Operand 272 states and 349 transitions. [2023-12-21 02:05:19,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2023-12-21 02:05:19,581 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 02:05:19,582 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:05:19,582 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2023-12-21 02:05:19,582 INFO L420 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 02:05:19,582 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 02:05:19,582 INFO L85 PathProgramCache]: Analyzing trace with hash -682952811, now seen corresponding path program 1 times [2023-12-21 02:05:19,582 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 02:05:19,582 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1560184415] [2023-12-21 02:05:19,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:05:19,582 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 02:05:19,598 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-21 02:05:19,598 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [46014642] [2023-12-21 02:05:19,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:05:19,598 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 02:05:19,598 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 02:05:19,599 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-21 02:05:19,624 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-12-21 02:05:19,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:19,809 INFO L262 TraceCheckSpWp]: Trace formula consists of 539 conjuncts, 12 conjunts are in the unsatisfiable core [2023-12-21 02:05:19,812 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 02:05:19,885 INFO L349 Elim1Store]: treesize reduction 3, result has 75.0 percent of original size [2023-12-21 02:05:19,885 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 34 treesize of output 27 [2023-12-21 02:05:19,901 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2023-12-21 02:05:19,901 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 02:05:19,901 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 02:05:19,902 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1560184415] [2023-12-21 02:05:19,902 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-21 02:05:19,902 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [46014642] [2023-12-21 02:05:19,902 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [46014642] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 02:05:19,902 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 02:05:19,902 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 02:05:19,902 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [796209491] [2023-12-21 02:05:19,902 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 02:05:19,902 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-21 02:05:19,902 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 02:05:19,903 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-21 02:05:19,903 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-21 02:05:19,903 INFO L87 Difference]: Start difference. First operand 272 states and 349 transitions. Second operand has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-12-21 02:05:20,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 02:05:20,338 INFO L93 Difference]: Finished difference Result 683 states and 860 transitions. [2023-12-21 02:05:20,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-21 02:05:20,338 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 149 [2023-12-21 02:05:20,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 02:05:20,339 INFO L225 Difference]: With dead ends: 683 [2023-12-21 02:05:20,339 INFO L226 Difference]: Without dead ends: 424 [2023-12-21 02:05:20,340 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 143 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2023-12-21 02:05:20,340 INFO L413 NwaCegarLoop]: 109 mSDtfsCounter, 106 mSDsluCounter, 393 mSDsCounter, 0 mSdLazyCounter, 320 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 502 SdHoareTripleChecker+Invalid, 322 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 320 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-21 02:05:20,340 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [106 Valid, 502 Invalid, 322 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 320 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-21 02:05:20,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 424 states. [2023-12-21 02:05:20,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 424 to 418. [2023-12-21 02:05:20,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 418 states, 374 states have (on average 1.2085561497326203) internal successors, (452), 376 states have internal predecessors, (452), 36 states have call successors, (36), 7 states have call predecessors, (36), 7 states have return successors, (36), 34 states have call predecessors, (36), 36 states have call successors, (36) [2023-12-21 02:05:20,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 418 states to 418 states and 524 transitions. [2023-12-21 02:05:20,455 INFO L78 Accepts]: Start accepts. Automaton has 418 states and 524 transitions. Word has length 149 [2023-12-21 02:05:20,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 02:05:20,455 INFO L495 AbstractCegarLoop]: Abstraction has 418 states and 524 transitions. [2023-12-21 02:05:20,455 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-12-21 02:05:20,455 INFO L276 IsEmpty]: Start isEmpty. Operand 418 states and 524 transitions. [2023-12-21 02:05:20,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2023-12-21 02:05:20,456 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 02:05:20,456 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:05:20,464 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-12-21 02:05:20,662 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 02:05:20,662 INFO L420 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 02:05:20,663 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 02:05:20,663 INFO L85 PathProgramCache]: Analyzing trace with hash -424787373, now seen corresponding path program 1 times [2023-12-21 02:05:20,663 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 02:05:20,663 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [769021979] [2023-12-21 02:05:20,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:05:20,663 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 02:05:20,679 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-21 02:05:20,679 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1664904990] [2023-12-21 02:05:20,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:05:20,679 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 02:05:20,680 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 02:05:20,680 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-21 02:05:20,705 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-12-21 02:05:20,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:20,886 INFO L262 TraceCheckSpWp]: Trace formula consists of 541 conjuncts, 23 conjunts are in the unsatisfiable core [2023-12-21 02:05:20,888 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 02:05:21,151 INFO L349 Elim1Store]: treesize reduction 3, result has 95.9 percent of original size [2023-12-21 02:05:21,152 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 67 treesize of output 104 [2023-12-21 02:05:21,265 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2023-12-21 02:05:21,265 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 02:05:21,266 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 02:05:21,266 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [769021979] [2023-12-21 02:05:21,266 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-21 02:05:21,266 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1664904990] [2023-12-21 02:05:21,266 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1664904990] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 02:05:21,266 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 02:05:21,266 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 02:05:21,266 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2068680348] [2023-12-21 02:05:21,266 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 02:05:21,266 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-21 02:05:21,266 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 02:05:21,267 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-21 02:05:21,267 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-21 02:05:21,267 INFO L87 Difference]: Start difference. First operand 418 states and 524 transitions. Second operand has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-12-21 02:05:22,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 02:05:22,069 INFO L93 Difference]: Finished difference Result 835 states and 1042 transitions. [2023-12-21 02:05:22,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-21 02:05:22,069 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 149 [2023-12-21 02:05:22,069 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 02:05:22,070 INFO L225 Difference]: With dead ends: 835 [2023-12-21 02:05:22,070 INFO L226 Difference]: Without dead ends: 430 [2023-12-21 02:05:22,071 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 143 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2023-12-21 02:05:22,071 INFO L413 NwaCegarLoop]: 150 mSDtfsCounter, 80 mSDsluCounter, 537 mSDsCounter, 0 mSdLazyCounter, 340 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 687 SdHoareTripleChecker+Invalid, 340 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 340 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-21 02:05:22,071 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [80 Valid, 687 Invalid, 340 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 340 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-21 02:05:22,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 430 states. [2023-12-21 02:05:22,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 430 to 384. [2023-12-21 02:05:22,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 384 states, 347 states have (on average 1.2132564841498559) internal successors, (421), 348 states have internal predecessors, (421), 30 states have call successors, (30), 6 states have call predecessors, (30), 6 states have return successors, (30), 29 states have call predecessors, (30), 30 states have call successors, (30) [2023-12-21 02:05:22,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 384 states to 384 states and 481 transitions. [2023-12-21 02:05:22,169 INFO L78 Accepts]: Start accepts. Automaton has 384 states and 481 transitions. Word has length 149 [2023-12-21 02:05:22,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 02:05:22,169 INFO L495 AbstractCegarLoop]: Abstraction has 384 states and 481 transitions. [2023-12-21 02:05:22,169 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-12-21 02:05:22,169 INFO L276 IsEmpty]: Start isEmpty. Operand 384 states and 481 transitions. [2023-12-21 02:05:22,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2023-12-21 02:05:22,170 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 02:05:22,170 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:05:22,176 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2023-12-21 02:05:22,375 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable46 [2023-12-21 02:05:22,376 INFO L420 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 02:05:22,377 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 02:05:22,377 INFO L85 PathProgramCache]: Analyzing trace with hash 1240275223, now seen corresponding path program 1 times [2023-12-21 02:05:22,377 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 02:05:22,377 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1470134699] [2023-12-21 02:05:22,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:05:22,377 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 02:05:22,392 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-21 02:05:22,392 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1323088948] [2023-12-21 02:05:22,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:05:22,392 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 02:05:22,392 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 02:05:22,393 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-21 02:05:22,395 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-12-21 02:05:22,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:22,607 INFO L262 TraceCheckSpWp]: Trace formula consists of 541 conjuncts, 16 conjunts are in the unsatisfiable core [2023-12-21 02:05:22,611 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 02:05:22,672 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-21 02:05:22,673 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 45 treesize of output 57 [2023-12-21 02:05:22,687 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2023-12-21 02:05:22,687 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 02:05:22,687 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 02:05:22,687 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1470134699] [2023-12-21 02:05:22,687 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-21 02:05:22,687 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1323088948] [2023-12-21 02:05:22,687 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1323088948] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 02:05:22,688 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 02:05:22,688 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-21 02:05:22,691 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1856161637] [2023-12-21 02:05:22,691 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 02:05:22,692 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 02:05:22,692 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 02:05:22,692 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 02:05:22,692 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-21 02:05:22,692 INFO L87 Difference]: Start difference. First operand 384 states and 481 transitions. Second operand has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-12-21 02:05:23,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 02:05:23,019 INFO L93 Difference]: Finished difference Result 905 states and 1120 transitions. [2023-12-21 02:05:23,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-21 02:05:23,020 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 149 [2023-12-21 02:05:23,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 02:05:23,021 INFO L225 Difference]: With dead ends: 905 [2023-12-21 02:05:23,021 INFO L226 Difference]: Without dead ends: 548 [2023-12-21 02:05:23,022 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 145 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-12-21 02:05:23,023 INFO L413 NwaCegarLoop]: 159 mSDtfsCounter, 94 mSDsluCounter, 336 mSDsCounter, 0 mSdLazyCounter, 196 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 495 SdHoareTripleChecker+Invalid, 198 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 196 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-21 02:05:23,023 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [94 Valid, 495 Invalid, 198 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 196 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-21 02:05:23,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 548 states. [2023-12-21 02:05:23,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 548 to 481. [2023-12-21 02:05:23,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 481 states, 444 states have (on average 1.2004504504504505) internal successors, (533), 445 states have internal predecessors, (533), 30 states have call successors, (30), 6 states have call predecessors, (30), 6 states have return successors, (30), 29 states have call predecessors, (30), 30 states have call successors, (30) [2023-12-21 02:05:23,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 481 states to 481 states and 593 transitions. [2023-12-21 02:05:23,128 INFO L78 Accepts]: Start accepts. Automaton has 481 states and 593 transitions. Word has length 149 [2023-12-21 02:05:23,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 02:05:23,129 INFO L495 AbstractCegarLoop]: Abstraction has 481 states and 593 transitions. [2023-12-21 02:05:23,129 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-12-21 02:05:23,129 INFO L276 IsEmpty]: Start isEmpty. Operand 481 states and 593 transitions. [2023-12-21 02:05:23,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2023-12-21 02:05:23,130 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 02:05:23,130 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:05:23,147 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-12-21 02:05:23,336 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable47 [2023-12-21 02:05:23,336 INFO L420 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 02:05:23,336 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 02:05:23,337 INFO L85 PathProgramCache]: Analyzing trace with hash 1498440661, now seen corresponding path program 1 times [2023-12-21 02:05:23,337 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 02:05:23,337 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1690433017] [2023-12-21 02:05:23,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:05:23,337 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 02:05:23,351 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-21 02:05:23,351 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [57462901] [2023-12-21 02:05:23,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:05:23,351 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 02:05:23,352 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 02:05:23,352 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-21 02:05:23,365 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-12-21 02:05:23,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:23,568 INFO L262 TraceCheckSpWp]: Trace formula consists of 543 conjuncts, 18 conjunts are in the unsatisfiable core [2023-12-21 02:05:23,570 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 02:05:23,666 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-21 02:05:23,666 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 50 treesize of output 62 [2023-12-21 02:05:23,689 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2023-12-21 02:05:23,689 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 02:05:23,689 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 02:05:23,689 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1690433017] [2023-12-21 02:05:23,689 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-21 02:05:23,689 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [57462901] [2023-12-21 02:05:23,690 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [57462901] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 02:05:23,690 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 02:05:23,690 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 02:05:23,690 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [630714198] [2023-12-21 02:05:23,690 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 02:05:23,690 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-21 02:05:23,690 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 02:05:23,690 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-21 02:05:23,691 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-21 02:05:23,691 INFO L87 Difference]: Start difference. First operand 481 states and 593 transitions. Second operand has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-12-21 02:05:24,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 02:05:24,232 INFO L93 Difference]: Finished difference Result 1062 states and 1288 transitions. [2023-12-21 02:05:24,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-21 02:05:24,232 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 149 [2023-12-21 02:05:24,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 02:05:24,234 INFO L225 Difference]: With dead ends: 1062 [2023-12-21 02:05:24,234 INFO L226 Difference]: Without dead ends: 608 [2023-12-21 02:05:24,234 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 143 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2023-12-21 02:05:24,242 INFO L413 NwaCegarLoop]: 185 mSDtfsCounter, 76 mSDsluCounter, 497 mSDsCounter, 0 mSdLazyCounter, 300 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 682 SdHoareTripleChecker+Invalid, 301 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 300 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-21 02:05:24,242 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [76 Valid, 682 Invalid, 301 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 300 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-21 02:05:24,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 608 states. [2023-12-21 02:05:24,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 608 to 565. [2023-12-21 02:05:24,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 565 states, 528 states have (on average 1.1723484848484849) internal successors, (619), 529 states have internal predecessors, (619), 30 states have call successors, (30), 6 states have call predecessors, (30), 6 states have return successors, (30), 29 states have call predecessors, (30), 30 states have call successors, (30) [2023-12-21 02:05:24,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 565 states to 565 states and 679 transitions. [2023-12-21 02:05:24,397 INFO L78 Accepts]: Start accepts. Automaton has 565 states and 679 transitions. Word has length 149 [2023-12-21 02:05:24,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 02:05:24,397 INFO L495 AbstractCegarLoop]: Abstraction has 565 states and 679 transitions. [2023-12-21 02:05:24,397 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-12-21 02:05:24,397 INFO L276 IsEmpty]: Start isEmpty. Operand 565 states and 679 transitions. [2023-12-21 02:05:24,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2023-12-21 02:05:24,398 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 02:05:24,398 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:05:24,414 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-12-21 02:05:24,605 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 02:05:24,606 INFO L420 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 02:05:24,606 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 02:05:24,606 INFO L85 PathProgramCache]: Analyzing trace with hash -284702644, now seen corresponding path program 1 times [2023-12-21 02:05:24,606 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 02:05:24,606 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1000496596] [2023-12-21 02:05:24,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:05:24,606 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 02:05:24,620 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-21 02:05:24,621 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [100138713] [2023-12-21 02:05:24,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:05:24,621 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 02:05:24,621 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 02:05:24,622 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-21 02:05:24,626 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-12-21 02:05:24,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:24,973 INFO L262 TraceCheckSpWp]: Trace formula consists of 550 conjuncts, 26 conjunts are in the unsatisfiable core [2023-12-21 02:05:24,976 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 02:05:25,117 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-21 02:05:25,117 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 58 treesize of output 54 [2023-12-21 02:05:25,122 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 35 [2023-12-21 02:05:25,125 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 26 [2023-12-21 02:05:25,319 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2023-12-21 02:05:25,320 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 02:05:25,320 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 02:05:25,320 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1000496596] [2023-12-21 02:05:25,320 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-21 02:05:25,320 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [100138713] [2023-12-21 02:05:25,320 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [100138713] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 02:05:25,320 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 02:05:25,320 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-21 02:05:25,320 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [990827186] [2023-12-21 02:05:25,320 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 02:05:25,320 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 02:05:25,321 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 02:05:25,321 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 02:05:25,321 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-21 02:05:25,321 INFO L87 Difference]: Start difference. First operand 565 states and 679 transitions. Second operand has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-12-21 02:05:29,584 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-12-21 02:05:37,585 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-12-21 02:05:42,380 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-12-21 02:05:43,818 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.41s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-12-21 02:05:43,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 02:05:43,955 INFO L93 Difference]: Finished difference Result 1315 states and 1545 transitions. [2023-12-21 02:05:43,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-21 02:05:43,956 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 150 [2023-12-21 02:05:43,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 02:05:43,958 INFO L225 Difference]: With dead ends: 1315 [2023-12-21 02:05:43,958 INFO L226 Difference]: Without dead ends: 777 [2023-12-21 02:05:43,958 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 146 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-21 02:05:43,959 INFO L413 NwaCegarLoop]: 152 mSDtfsCounter, 63 mSDsluCounter, 318 mSDsCounter, 0 mSdLazyCounter, 206 mSolverCounterSat, 1 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 470 SdHoareTripleChecker+Invalid, 210 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 206 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.0s IncrementalHoareTripleChecker+Time [2023-12-21 02:05:43,959 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 470 Invalid, 210 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 206 Invalid, 3 Unknown, 0 Unchecked, 18.0s Time] [2023-12-21 02:05:43,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 777 states. [2023-12-21 02:05:44,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 777 to 709. [2023-12-21 02:05:44,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 709 states, 684 states have (on average 1.141812865497076) internal successors, (781), 684 states have internal predecessors, (781), 19 states have call successors, (19), 5 states have call predecessors, (19), 5 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2023-12-21 02:05:44,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 709 states to 709 states and 819 transitions. [2023-12-21 02:05:44,032 INFO L78 Accepts]: Start accepts. Automaton has 709 states and 819 transitions. Word has length 150 [2023-12-21 02:05:44,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 02:05:44,032 INFO L495 AbstractCegarLoop]: Abstraction has 709 states and 819 transitions. [2023-12-21 02:05:44,032 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-12-21 02:05:44,032 INFO L276 IsEmpty]: Start isEmpty. Operand 709 states and 819 transitions. [2023-12-21 02:05:44,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2023-12-21 02:05:44,033 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 02:05:44,033 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:05:44,054 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-12-21 02:05:44,240 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable49 [2023-12-21 02:05:44,241 INFO L420 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 02:05:44,241 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 02:05:44,241 INFO L85 PathProgramCache]: Analyzing trace with hash -677729654, now seen corresponding path program 1 times [2023-12-21 02:05:44,241 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 02:05:44,241 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1383111114] [2023-12-21 02:05:44,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:05:44,241 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 02:05:44,255 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-21 02:05:44,255 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1308208988] [2023-12-21 02:05:44,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:05:44,255 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 02:05:44,255 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 02:05:44,256 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-21 02:05:44,258 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-12-21 02:05:44,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:44,492 INFO L262 TraceCheckSpWp]: Trace formula consists of 548 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-21 02:05:44,494 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 02:05:44,514 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2023-12-21 02:05:44,514 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 02:05:44,514 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 02:05:44,514 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1383111114] [2023-12-21 02:05:44,514 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-21 02:05:44,514 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1308208988] [2023-12-21 02:05:44,514 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1308208988] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 02:05:44,514 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 02:05:44,514 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-21 02:05:44,515 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [872888314] [2023-12-21 02:05:44,515 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 02:05:44,515 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-21 02:05:44,515 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 02:05:44,515 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-21 02:05:44,515 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-21 02:05:44,515 INFO L87 Difference]: Start difference. First operand 709 states and 819 transitions. Second operand has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 6 states have internal predecessors, (58), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-12-21 02:05:44,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 02:05:44,642 INFO L93 Difference]: Finished difference Result 1427 states and 1648 transitions. [2023-12-21 02:05:44,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-21 02:05:44,643 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 6 states have internal predecessors, (58), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 150 [2023-12-21 02:05:44,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 02:05:44,645 INFO L225 Difference]: With dead ends: 1427 [2023-12-21 02:05:44,645 INFO L226 Difference]: Without dead ends: 719 [2023-12-21 02:05:44,645 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 154 GetRequests, 145 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2023-12-21 02:05:44,646 INFO L413 NwaCegarLoop]: 131 mSDtfsCounter, 23 mSDsluCounter, 503 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 634 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 02:05:44,646 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 634 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 02:05:44,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 719 states. [2023-12-21 02:05:44,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 719 to 710. [2023-12-21 02:05:44,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 710 states, 685 states have (on average 1.1416058394160584) internal successors, (782), 685 states have internal predecessors, (782), 19 states have call successors, (19), 5 states have call predecessors, (19), 5 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2023-12-21 02:05:44,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 710 states to 710 states and 820 transitions. [2023-12-21 02:05:44,703 INFO L78 Accepts]: Start accepts. Automaton has 710 states and 820 transitions. Word has length 150 [2023-12-21 02:05:44,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 02:05:44,703 INFO L495 AbstractCegarLoop]: Abstraction has 710 states and 820 transitions. [2023-12-21 02:05:44,704 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 6 states have internal predecessors, (58), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-12-21 02:05:44,704 INFO L276 IsEmpty]: Start isEmpty. Operand 710 states and 820 transitions. [2023-12-21 02:05:44,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2023-12-21 02:05:44,705 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 02:05:44,705 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:05:44,714 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-12-21 02:05:44,912 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 02:05:44,912 INFO L420 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 02:05:44,912 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 02:05:44,912 INFO L85 PathProgramCache]: Analyzing trace with hash -346742258, now seen corresponding path program 1 times [2023-12-21 02:05:44,912 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 02:05:44,912 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [584723908] [2023-12-21 02:05:44,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:05:44,913 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 02:05:44,928 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-21 02:05:44,928 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1321118215] [2023-12-21 02:05:44,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:05:44,928 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 02:05:44,928 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 02:05:44,929 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-21 02:05:44,956 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-12-21 02:05:45,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:45,170 INFO L262 TraceCheckSpWp]: Trace formula consists of 554 conjuncts, 17 conjunts are in the unsatisfiable core [2023-12-21 02:05:45,172 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 02:05:45,191 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-12-21 02:05:45,253 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 54 refuted. 0 times theorem prover too weak. 630 trivial. 0 not checked. [2023-12-21 02:05:45,253 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 02:05:45,359 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2023-12-21 02:05:45,360 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 02:05:45,360 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [584723908] [2023-12-21 02:05:45,360 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-21 02:05:45,360 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1321118215] [2023-12-21 02:05:45,360 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1321118215] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-21 02:05:45,360 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-21 02:05:45,360 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [9] total 12 [2023-12-21 02:05:45,360 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1550386558] [2023-12-21 02:05:45,360 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 02:05:45,360 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-21 02:05:45,361 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 02:05:45,361 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-21 02:05:45,361 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2023-12-21 02:05:45,361 INFO L87 Difference]: Start difference. First operand 710 states and 820 transitions. Second operand has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 7 states have internal predecessors, (58), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-12-21 02:05:46,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 02:05:46,438 INFO L93 Difference]: Finished difference Result 1537 states and 1783 transitions. [2023-12-21 02:05:46,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-21 02:05:46,439 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 7 states have internal predecessors, (58), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 150 [2023-12-21 02:05:46,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 02:05:46,439 INFO L225 Difference]: With dead ends: 1537 [2023-12-21 02:05:46,439 INFO L226 Difference]: Without dead ends: 0 [2023-12-21 02:05:46,441 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 309 GetRequests, 288 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=112, Invalid=394, Unknown=0, NotChecked=0, Total=506 [2023-12-21 02:05:46,442 INFO L413 NwaCegarLoop]: 241 mSDtfsCounter, 130 mSDsluCounter, 1035 mSDsCounter, 0 mSdLazyCounter, 130 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 1276 SdHoareTripleChecker+Invalid, 133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 130 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-21 02:05:46,442 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [130 Valid, 1276 Invalid, 133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 130 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-21 02:05:46,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-12-21 02:05:46,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-12-21 02:05:46,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states 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 02:05:46,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-12-21 02:05:46,443 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 150 [2023-12-21 02:05:46,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 02:05:46,443 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-12-21 02:05:46,443 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 7 states have internal predecessors, (58), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-12-21 02:05:46,444 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-12-21 02:05:46,444 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-12-21 02:05:46,445 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-21 02:05:46,453 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2023-12-21 02:05:46,655 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable51 [2023-12-21 02:05:46,657 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. Received shutdown request... [2023-12-21 02:18:11,883 WARN L619 AbstractCegarLoop]: Verification canceled: while PolyPacSimplificationTermWalker was simplifying a ∨-6-6-6-9-6-9-6-14-6-22-5-22-5-22-5-22-5-22-5-22-5-22-5-22-5-13-5-13-5-13-5-13-5-13-5-13-5-13-5-13-5-13-5-13-5-13-5-13-5-13-3-13-3-13-3-13-3-13-3-13-1 term,while PolyPacSimplificationTermWalker was simplifying 10 xjuncts wrt. a ∧-93-22-8-22-6-22-6-22-6-22-5-22-5-22-5-22-5-22-5-22-5-22-5-22-5-13-5-13-5-13-5-13-5-13-5-13-5-13-5-13-5-13-5-13-5-13-5-13-5-13-3-13-3-13-3-13-3-13-3-13-1 context. [2023-12-21 02:18:11,887 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-12-21 02:18:11,907 INFO L257 ToolchainWalker]: Toolchain cancelled while executing plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction. Reason: Timeout or Toolchain cancelled by user [2023-12-21 02:18:11,910 INFO L158 Benchmark]: Toolchain (without parser) took 857410.57ms. Allocated memory was 253.8MB in the beginning and 867.2MB in the end (delta: 613.4MB). Free memory was 211.7MB in the beginning and 774.8MB in the end (delta: -563.1MB). Peak memory consumption was 51.4MB. Max. memory is 8.0GB. [2023-12-21 02:18:11,910 INFO L158 Benchmark]: CDTParser took 0.40ms. Allocated memory is still 207.6MB. Free memory is still 159.8MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-21 02:18:11,910 INFO L158 Benchmark]: CACSL2BoogieTranslator took 266.90ms. Allocated memory is still 253.8MB. Free memory was 211.4MB in the beginning and 196.0MB in the end (delta: 15.4MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. [2023-12-21 02:18:11,911 INFO L158 Benchmark]: Boogie Procedure Inliner took 60.52ms. Allocated memory is still 253.8MB. Free memory was 196.0MB in the beginning and 191.2MB in the end (delta: 4.8MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. [2023-12-21 02:18:11,911 INFO L158 Benchmark]: Boogie Preprocessor took 84.62ms. Allocated memory is still 253.8MB. Free memory was 191.2MB in the beginning and 186.2MB in the end (delta: 4.9MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. [2023-12-21 02:18:11,911 INFO L158 Benchmark]: RCFGBuilder took 679.58ms. Allocated memory is still 253.8MB. Free memory was 186.2MB in the beginning and 201.2MB in the end (delta: -15.0MB). Peak memory consumption was 26.3MB. Max. memory is 8.0GB. [2023-12-21 02:18:11,911 INFO L158 Benchmark]: TraceAbstraction took 856314.80ms. Allocated memory was 253.8MB in the beginning and 867.2MB in the end (delta: 613.4MB). Free memory was 200.2MB in the beginning and 774.8MB in the end (delta: -574.6MB). Peak memory consumption was 38.8MB. Max. memory is 8.0GB. [2023-12-21 02:18:11,912 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-21 02:18:11,918 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.40ms. Allocated memory is still 207.6MB. Free memory is still 159.8MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 266.90ms. Allocated memory is still 253.8MB. Free memory was 211.4MB in the beginning and 196.0MB in the end (delta: 15.4MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 60.52ms. Allocated memory is still 253.8MB. Free memory was 196.0MB in the beginning and 191.2MB in the end (delta: 4.8MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. * Boogie Preprocessor took 84.62ms. Allocated memory is still 253.8MB. Free memory was 191.2MB in the beginning and 186.2MB in the end (delta: 4.9MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. * RCFGBuilder took 679.58ms. Allocated memory is still 253.8MB. Free memory was 186.2MB in the beginning and 201.2MB in the end (delta: -15.0MB). Peak memory consumption was 26.3MB. Max. memory is 8.0GB. * TraceAbstraction took 856314.80ms. Allocated memory was 253.8MB in the beginning and 867.2MB in the end (delta: 613.4MB). Free memory was 200.2MB in the beginning and 774.8MB in the end (delta: -574.6MB). Peak memory consumption was 38.8MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResult: Timeout (de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction) Toolchain cancelled while PolyPacSimplificationTermWalker was simplifying a ∨-6-6-6-9-6-9-6-14-6-22-5-22-5-22-5-22-5-22-5-22-5-22-5-22-5-13-5-13-5-13-5-13-5-13-5-13-5-13-5-13-5-13-5-13-5-13-5-13-5-13-3-13-3-13-3-13-3-13-3-13-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∧-25-9-14-14-22-22-7-22-7-22-5-22-9-22-13-22-13-22-10-22-13-22-13-22-11-13-11-13-11-13-11-13-11-13-11-13-13-13-13-13-13-13-5-13-5-13-5-13-5-13-3-13-3-13-3-13-3-13-3-13-1 context. RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown