/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-90.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-21 02:06:56,944 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-21 02:06:57,006 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 02:06:57,009 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-21 02:06:57,009 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-21 02:06:57,030 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-21 02:06:57,030 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-21 02:06:57,030 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-21 02:06:57,031 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-21 02:06:57,033 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-21 02:06:57,034 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-21 02:06:57,034 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-21 02:06:57,034 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-21 02:06:57,035 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-21 02:06:57,035 INFO L153 SettingsManager]: * Use SBE=true [2023-12-21 02:06:57,035 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-21 02:06:57,035 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-21 02:06:57,036 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-21 02:06:57,036 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-21 02:06:57,036 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-21 02:06:57,036 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-21 02:06:57,036 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-21 02:06:57,036 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-21 02:06:57,037 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-21 02:06:57,037 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-21 02:06:57,037 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-21 02:06:57,037 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-21 02:06:57,037 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-21 02:06:57,038 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-21 02:06:57,038 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-21 02:06:57,038 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-21 02:06:57,038 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-21 02:06:57,039 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-21 02:06:57,039 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-21 02:06:57,039 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-21 02:06:57,039 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-21 02:06:57,039 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-21 02:06:57,039 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-21 02:06:57,039 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-21 02:06:57,039 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-21 02:06:57,039 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-21 02:06:57,040 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-21 02:06:57,040 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-21 02:06:57,040 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> false [2023-12-21 02:06:57,230 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-21 02:06:57,246 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-21 02:06:57,247 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-21 02:06:57,248 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-21 02:06:57,248 INFO L274 PluginConnector]: CDTParser initialized [2023-12-21 02:06:57,249 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_variablewrapping_wrapper-ap_file-90.i [2023-12-21 02:06:58,161 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-21 02:06:58,336 INFO L384 CDTParser]: Found 1 translation units. [2023-12-21 02:06:58,336 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_variablewrapping_wrapper-ap_file-90.i [2023-12-21 02:06:58,345 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8537b109b/9f55eef575104ec5b66aa367d4b5556e/FLAG18db85c95 [2023-12-21 02:06:58,358 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8537b109b/9f55eef575104ec5b66aa367d4b5556e [2023-12-21 02:06:58,359 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-21 02:06:58,360 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-21 02:06:58,361 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-21 02:06:58,361 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-21 02:06:58,365 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-21 02:06:58,366 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 02:06:58" (1/1) ... [2023-12-21 02:06:58,367 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@610d2d15 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 02:06:58, skipping insertion in model container [2023-12-21 02:06:58,367 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 02:06:58" (1/1) ... [2023-12-21 02:06:58,398 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-21 02:06:58,513 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-90.i[917,930] [2023-12-21 02:06:58,578 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-21 02:06:58,587 INFO L202 MainTranslator]: Completed pre-run [2023-12-21 02:06:58,594 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-90.i[917,930] [2023-12-21 02:06:58,615 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-21 02:06:58,627 INFO L206 MainTranslator]: Completed translation [2023-12-21 02:06:58,627 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 02:06:58 WrapperNode [2023-12-21 02:06:58,627 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-21 02:06:58,628 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-21 02:06:58,628 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-21 02:06:58,628 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-21 02:06:58,632 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 02:06:58" (1/1) ... [2023-12-21 02:06:58,643 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 02:06:58" (1/1) ... [2023-12-21 02:06:58,676 INFO L138 Inliner]: procedures = 26, calls = 165, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 484 [2023-12-21 02:06:58,676 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-21 02:06:58,677 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-21 02:06:58,677 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-21 02:06:58,677 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-21 02:06:58,683 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 02:06:58" (1/1) ... [2023-12-21 02:06:58,684 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 02:06:58" (1/1) ... [2023-12-21 02:06:58,690 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 02:06:58" (1/1) ... [2023-12-21 02:06:58,702 INFO L175 MemorySlicer]: Split 130 memory accesses to 5 slices as follows [2, 34, 4, 55, 35]. 42 percent of accesses are in the largest equivalence class. The 17 initializations are split as follows [2, 5, 1, 6, 3]. The 19 writes are split as follows [0, 6, 1, 6, 6]. [2023-12-21 02:06:58,702 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 02:06:58" (1/1) ... [2023-12-21 02:06:58,702 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 02:06:58" (1/1) ... [2023-12-21 02:06:58,711 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 02:06:58" (1/1) ... [2023-12-21 02:06:58,714 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 02:06:58" (1/1) ... [2023-12-21 02:06:58,716 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 02:06:58" (1/1) ... [2023-12-21 02:06:58,717 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 02:06:58" (1/1) ... [2023-12-21 02:06:58,721 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-21 02:06:58,721 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-21 02:06:58,722 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-21 02:06:58,722 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-21 02:06:58,722 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 02:06:58" (1/1) ... [2023-12-21 02:06:58,740 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-21 02:06:58,750 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 02:06:58,764 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 02:06:58,773 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 02:06:58,789 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-21 02:06:58,789 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2023-12-21 02:06:58,789 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2023-12-21 02:06:58,789 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2023-12-21 02:06:58,789 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2023-12-21 02:06:58,789 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2023-12-21 02:06:58,789 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2023-12-21 02:06:58,789 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2023-12-21 02:06:58,789 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2023-12-21 02:06:58,789 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2023-12-21 02:06:58,789 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2023-12-21 02:06:58,790 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-21 02:06:58,790 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-21 02:06:58,790 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-21 02:06:58,790 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-12-21 02:06:58,790 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2023-12-21 02:06:58,790 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2023-12-21 02:06:58,790 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2023-12-21 02:06:58,790 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-21 02:06:58,790 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-21 02:06:58,888 INFO L241 CfgBuilder]: Building ICFG [2023-12-21 02:06:58,889 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-21 02:06:59,208 INFO L282 CfgBuilder]: Performing block encoding [2023-12-21 02:06:59,229 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-21 02:06:59,229 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-21 02:06:59,229 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 02:06:59 BoogieIcfgContainer [2023-12-21 02:06:59,230 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-21 02:06:59,231 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-21 02:06:59,231 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-21 02:06:59,233 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-21 02:06:59,233 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.12 02:06:58" (1/3) ... [2023-12-21 02:06:59,234 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@638384da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 02:06:59, skipping insertion in model container [2023-12-21 02:06:59,234 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 02:06:58" (2/3) ... [2023-12-21 02:06:59,234 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@638384da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 02:06:59, skipping insertion in model container [2023-12-21 02:06:59,234 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 02:06:59" (3/3) ... [2023-12-21 02:06:59,235 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-ap_file-90.i [2023-12-21 02:06:59,246 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-21 02:06:59,246 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-21 02:06:59,274 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-21 02:06:59,278 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;@4e4ed0b1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-21 02:06:59,278 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-21 02:06:59,281 INFO L276 IsEmpty]: Start isEmpty. Operand has 104 states, 81 states have (on average 1.4074074074074074) internal successors, (114), 82 states have internal predecessors, (114), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-12-21 02:06:59,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2023-12-21 02:06:59,290 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 02:06:59,291 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:06:59,291 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 02:06:59,294 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 02:06:59,294 INFO L85 PathProgramCache]: Analyzing trace with hash -1081033117, now seen corresponding path program 1 times [2023-12-21 02:06:59,300 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 02:06:59,300 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [713249733] [2023-12-21 02:06:59,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:06:59,301 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 02:06:59,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:06:59,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 02:06:59,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:06:59,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 02:06:59,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:06:59,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 02:06:59,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:06:59,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 02:06:59,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:06:59,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-21 02:06:59,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:06:59,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 02:06:59,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:06:59,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-21 02:06:59,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:06:59,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 02:06:59,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:06:59,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 02:06:59,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:06:59,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 02:06:59,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:06:59,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-21 02:06:59,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:06:59,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 02:06:59,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:06:59,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-21 02:06:59,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:06:59,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-21 02:06:59,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:06:59,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-21 02:06:59,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:06:59,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-21 02:06:59,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:06:59,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-21 02:06:59,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:06:59,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-21 02:06:59,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:06:59,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-21 02:06:59,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:06:59,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-12-21 02:06:59,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:06:59,704 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-12-21 02:06:59,705 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 02:06:59,705 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [713249733] [2023-12-21 02:06:59,705 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [713249733] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 02:06:59,706 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 02:06:59,706 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-21 02:06:59,708 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [107261436] [2023-12-21 02:06:59,709 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 02:06:59,712 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-21 02:06:59,713 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 02:06:59,736 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-21 02:06:59,737 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-21 02:06:59,740 INFO L87 Difference]: Start difference. First operand has 104 states, 81 states have (on average 1.4074074074074074) internal successors, (114), 82 states have internal predecessors, (114), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) Second operand has 2 states, 2 states have (on average 25.5) internal successors, (51), 2 states have internal predecessors, (51), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) [2023-12-21 02:06:59,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 02:06:59,791 INFO L93 Difference]: Finished difference Result 205 states and 326 transitions. [2023-12-21 02:06:59,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-21 02:06:59,793 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 25.5) internal successors, (51), 2 states have internal predecessors, (51), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) Word has length 148 [2023-12-21 02:06:59,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 02:06:59,799 INFO L225 Difference]: With dead ends: 205 [2023-12-21 02:06:59,799 INFO L226 Difference]: Without dead ends: 102 [2023-12-21 02:06:59,802 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 62 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 02:06:59,805 INFO L413 NwaCegarLoop]: 145 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, 145 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 02:06:59,806 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 145 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 02:06:59,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2023-12-21 02:06:59,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 102. [2023-12-21 02:06:59,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102 states, 80 states have (on average 1.3625) internal successors, (109), 80 states have internal predecessors, (109), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-12-21 02:06:59,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 149 transitions. [2023-12-21 02:06:59,844 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 149 transitions. Word has length 148 [2023-12-21 02:06:59,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 02:06:59,844 INFO L495 AbstractCegarLoop]: Abstraction has 102 states and 149 transitions. [2023-12-21 02:06:59,844 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 25.5) internal successors, (51), 2 states have internal predecessors, (51), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) [2023-12-21 02:06:59,844 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 149 transitions. [2023-12-21 02:06:59,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2023-12-21 02:06:59,846 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 02:06:59,846 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:06:59,847 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-21 02:06:59,848 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 02:06:59,848 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 02:06:59,848 INFO L85 PathProgramCache]: Analyzing trace with hash 363461691, now seen corresponding path program 1 times [2023-12-21 02:06:59,848 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 02:06:59,849 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [310644006] [2023-12-21 02:06:59,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:06:59,850 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 02:06:59,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:00,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 02:07:00,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:00,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 02:07:00,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:00,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 02:07:00,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:00,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 02:07:00,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:00,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-21 02:07:00,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:00,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 02:07:00,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:00,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-21 02:07:00,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:00,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 02:07:00,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:00,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 02:07:00,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:00,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 02:07:00,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:00,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-21 02:07:00,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:00,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 02:07:00,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:00,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-21 02:07:00,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:00,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-21 02:07:00,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:00,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-21 02:07:00,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:00,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-21 02:07:00,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:00,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-21 02:07:00,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:00,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-21 02:07:00,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:00,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-21 02:07:00,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:00,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-12-21 02:07:00,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:00,177 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-12-21 02:07:00,178 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 02:07:00,178 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [310644006] [2023-12-21 02:07:00,178 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [310644006] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 02:07:00,178 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 02:07:00,178 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-21 02:07:00,178 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [519893538] [2023-12-21 02:07:00,178 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 02:07:00,179 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-21 02:07:00,179 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 02:07:00,182 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-21 02:07:00,183 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-21 02:07:00,185 INFO L87 Difference]: Start difference. First operand 102 states and 149 transitions. Second operand has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-21 02:07:00,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 02:07:00,254 INFO L93 Difference]: Finished difference Result 231 states and 339 transitions. [2023-12-21 02:07:00,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-21 02:07:00,255 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 148 [2023-12-21 02:07:00,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 02:07:00,256 INFO L225 Difference]: With dead ends: 231 [2023-12-21 02:07:00,256 INFO L226 Difference]: Without dead ends: 130 [2023-12-21 02:07:00,257 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 43 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 02:07:00,258 INFO L413 NwaCegarLoop]: 170 mSDtfsCounter, 61 mSDsluCounter, 296 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 466 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 02:07:00,258 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 466 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 02:07:00,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2023-12-21 02:07:00,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 104. [2023-12-21 02:07:00,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104 states, 82 states have (on average 1.353658536585366) internal successors, (111), 82 states have internal predecessors, (111), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-12-21 02:07:00,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 151 transitions. [2023-12-21 02:07:00,265 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 151 transitions. Word has length 148 [2023-12-21 02:07:00,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 02:07:00,266 INFO L495 AbstractCegarLoop]: Abstraction has 104 states and 151 transitions. [2023-12-21 02:07:00,266 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-21 02:07:00,266 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 151 transitions. [2023-12-21 02:07:00,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2023-12-21 02:07:00,268 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 02:07:00,268 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:07:00,268 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-21 02:07:00,268 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 02:07:00,268 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 02:07:00,268 INFO L85 PathProgramCache]: Analyzing trace with hash 1744348064, now seen corresponding path program 1 times [2023-12-21 02:07:00,269 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 02:07:00,269 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1327969015] [2023-12-21 02:07:00,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:07:00,269 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 02:07:00,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:00,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 02:07:00,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:00,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 02:07:00,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:00,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 02:07:00,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:00,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 02:07:00,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:00,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-21 02:07:00,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:00,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 02:07:00,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:00,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-21 02:07:00,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:00,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 02:07:00,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:00,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 02:07:00,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:00,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 02:07:00,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:00,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-21 02:07:00,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:00,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 02:07:00,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:00,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-21 02:07:00,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:00,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-21 02:07:00,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:00,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-21 02:07:00,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:00,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-21 02:07:00,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:00,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-21 02:07:00,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:00,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-21 02:07:00,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:00,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-21 02:07:00,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:00,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-12-21 02:07:00,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:00,611 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-12-21 02:07:00,611 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 02:07:00,612 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1327969015] [2023-12-21 02:07:00,612 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1327969015] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 02:07:00,612 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 02:07:00,612 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-21 02:07:00,612 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1952329880] [2023-12-21 02:07:00,612 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 02:07:00,613 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 02:07:00,614 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 02:07:00,614 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 02:07:00,616 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-21 02:07:00,616 INFO L87 Difference]: Start difference. First operand 104 states and 151 transitions. Second operand has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-21 02:07:00,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 02:07:00,703 INFO L93 Difference]: Finished difference Result 253 states and 366 transitions. [2023-12-21 02:07:00,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-21 02:07:00,703 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 150 [2023-12-21 02:07:00,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 02:07:00,706 INFO L225 Difference]: With dead ends: 253 [2023-12-21 02:07:00,706 INFO L226 Difference]: Without dead ends: 150 [2023-12-21 02:07:00,708 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 42 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 02:07:00,711 INFO L413 NwaCegarLoop]: 187 mSDtfsCounter, 58 mSDsluCounter, 492 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 679 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 02:07:00,712 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 679 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 02:07:00,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2023-12-21 02:07:00,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 109. [2023-12-21 02:07:00,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109 states, 87 states have (on average 1.3448275862068966) internal successors, (117), 87 states have internal predecessors, (117), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-12-21 02:07:00,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 157 transitions. [2023-12-21 02:07:00,725 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 157 transitions. Word has length 150 [2023-12-21 02:07:00,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 02:07:00,725 INFO L495 AbstractCegarLoop]: Abstraction has 109 states and 157 transitions. [2023-12-21 02:07:00,726 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-21 02:07:00,726 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 157 transitions. [2023-12-21 02:07:00,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2023-12-21 02:07:00,727 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 02:07:00,727 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:07:00,727 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-21 02:07:00,727 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 02:07:00,727 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 02:07:00,727 INFO L85 PathProgramCache]: Analyzing trace with hash -2127917406, now seen corresponding path program 1 times [2023-12-21 02:07:00,727 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 02:07:00,728 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [893511640] [2023-12-21 02:07:00,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:07:00,728 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 02:07:00,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:01,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 02:07:01,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:01,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 02:07:01,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:01,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 02:07:01,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:01,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 02:07:01,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:01,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-21 02:07:01,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:01,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 02:07:01,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:01,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-21 02:07:01,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:01,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 02:07:01,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:01,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 02:07:01,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:01,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 02:07:01,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:01,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-21 02:07:01,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:01,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 02:07:01,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:01,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-21 02:07:01,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:01,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-21 02:07:01,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:01,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-21 02:07:01,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:01,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-21 02:07:01,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:01,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-21 02:07:01,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:01,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-21 02:07:01,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:01,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-21 02:07:01,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:01,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-12-21 02:07:01,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:01,216 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-12-21 02:07:01,216 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 02:07:01,216 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [893511640] [2023-12-21 02:07:01,216 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [893511640] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 02:07:01,216 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 02:07:01,217 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-21 02:07:01,217 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [762642169] [2023-12-21 02:07:01,217 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 02:07:01,217 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-21 02:07:01,217 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 02:07:01,217 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-21 02:07:01,218 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-21 02:07:01,218 INFO L87 Difference]: Start difference. First operand 109 states and 157 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, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-21 02:07:01,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 02:07:01,298 INFO L93 Difference]: Finished difference Result 252 states and 362 transitions. [2023-12-21 02:07:01,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-21 02:07:01,299 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, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 150 [2023-12-21 02:07:01,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 02:07:01,301 INFO L225 Difference]: With dead ends: 252 [2023-12-21 02:07:01,301 INFO L226 Difference]: Without dead ends: 144 [2023-12-21 02:07:01,303 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2023-12-21 02:07:01,307 INFO L413 NwaCegarLoop]: 135 mSDtfsCounter, 193 mSDsluCounter, 377 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 193 SdHoareTripleChecker+Valid, 512 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 02:07:01,308 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [193 Valid, 512 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 02:07:01,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2023-12-21 02:07:01,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 111. [2023-12-21 02:07:01,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111 states, 89 states have (on average 1.3370786516853932) internal successors, (119), 89 states have internal predecessors, (119), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-12-21 02:07:01,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 159 transitions. [2023-12-21 02:07:01,321 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 159 transitions. Word has length 150 [2023-12-21 02:07:01,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 02:07:01,321 INFO L495 AbstractCegarLoop]: Abstraction has 111 states and 159 transitions. [2023-12-21 02:07:01,321 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, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-21 02:07:01,322 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 159 transitions. [2023-12-21 02:07:01,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2023-12-21 02:07:01,323 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 02:07:01,323 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:07:01,323 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-21 02:07:01,323 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 02:07:01,323 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 02:07:01,323 INFO L85 PathProgramCache]: Analyzing trace with hash 213927120, now seen corresponding path program 1 times [2023-12-21 02:07:01,323 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 02:07:01,323 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1192343389] [2023-12-21 02:07:01,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:07:01,323 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 02:07:01,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:02,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 02:07:02,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:02,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 02:07:02,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:02,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 02:07:02,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:02,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 02:07:02,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:02,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-21 02:07:02,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:02,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 02:07:02,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:02,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-21 02:07:02,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:02,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 02:07:02,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:02,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 02:07:02,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:02,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 02:07:02,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:02,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-21 02:07:02,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:02,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 02:07:02,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:02,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-21 02:07:02,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:02,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-21 02:07:02,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:02,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-21 02:07:02,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:02,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-21 02:07:02,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:02,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-21 02:07:02,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:02,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-21 02:07:02,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:02,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-21 02:07:02,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:02,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-12-21 02:07:02,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:02,311 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-12-21 02:07:02,312 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 02:07:02,312 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1192343389] [2023-12-21 02:07:02,312 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1192343389] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 02:07:02,312 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 02:07:02,312 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-21 02:07:02,312 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [367055874] [2023-12-21 02:07:02,312 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 02:07:02,312 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-21 02:07:02,312 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 02:07:02,313 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-21 02:07:02,313 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2023-12-21 02:07:02,313 INFO L87 Difference]: Start difference. First operand 111 states and 159 transitions. Second operand has 10 states, 9 states have (on average 6.0) internal successors, (54), 10 states have internal predecessors, (54), 3 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 2 states have call predecessors, (20), 3 states have call successors, (20) [2023-12-21 02:07:02,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 02:07:02,673 INFO L93 Difference]: Finished difference Result 245 states and 349 transitions. [2023-12-21 02:07:02,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-21 02:07:02,674 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 6.0) internal successors, (54), 10 states have internal predecessors, (54), 3 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 2 states have call predecessors, (20), 3 states have call successors, (20) Word has length 151 [2023-12-21 02:07:02,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 02:07:02,675 INFO L225 Difference]: With dead ends: 245 [2023-12-21 02:07:02,675 INFO L226 Difference]: Without dead ends: 135 [2023-12-21 02:07:02,675 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=68, Invalid=172, Unknown=0, NotChecked=0, Total=240 [2023-12-21 02:07:02,676 INFO L413 NwaCegarLoop]: 136 mSDtfsCounter, 281 mSDsluCounter, 557 mSDsCounter, 0 mSdLazyCounter, 246 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 282 SdHoareTripleChecker+Valid, 693 SdHoareTripleChecker+Invalid, 301 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 246 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-21 02:07:02,676 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [282 Valid, 693 Invalid, 301 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 246 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-21 02:07:02,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135 states. [2023-12-21 02:07:02,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135 to 118. [2023-12-21 02:07:02,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 118 states, 95 states have (on average 1.3157894736842106) internal successors, (125), 95 states have internal predecessors, (125), 20 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-12-21 02:07:02,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 165 transitions. [2023-12-21 02:07:02,687 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 165 transitions. Word has length 151 [2023-12-21 02:07:02,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 02:07:02,687 INFO L495 AbstractCegarLoop]: Abstraction has 118 states and 165 transitions. [2023-12-21 02:07:02,687 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 6.0) internal successors, (54), 10 states have internal predecessors, (54), 3 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 2 states have call predecessors, (20), 3 states have call successors, (20) [2023-12-21 02:07:02,687 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 165 transitions. [2023-12-21 02:07:02,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2023-12-21 02:07:02,688 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 02:07:02,688 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:07:02,688 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-21 02:07:02,689 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 02:07:02,689 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 02:07:02,689 INFO L85 PathProgramCache]: Analyzing trace with hash 1885677381, now seen corresponding path program 1 times [2023-12-21 02:07:02,689 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 02:07:02,689 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1493444711] [2023-12-21 02:07:02,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:07:02,689 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 02:07:02,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:03,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 02:07:03,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:03,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 02:07:03,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:03,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 02:07:03,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:03,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 02:07:03,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:03,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-21 02:07:03,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:03,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 02:07:03,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:03,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-21 02:07:03,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:03,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 02:07:03,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:03,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 02:07:03,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:03,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 02:07:03,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:03,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-21 02:07:03,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:03,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 02:07:03,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:03,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-21 02:07:03,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:03,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-21 02:07:03,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:03,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-21 02:07:03,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:03,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-21 02:07:03,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:03,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-21 02:07:03,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:03,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-21 02:07:03,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:03,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-21 02:07:03,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:03,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-12-21 02:07:03,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:03,405 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 6 proven. 51 refuted. 0 times theorem prover too weak. 703 trivial. 0 not checked. [2023-12-21 02:07:03,405 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 02:07:03,406 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1493444711] [2023-12-21 02:07:03,406 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1493444711] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 02:07:03,406 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [906368339] [2023-12-21 02:07:03,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:07:03,406 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 02:07:03,406 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 02:07:03,408 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 02:07:03,421 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 02:07:03,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:03,575 INFO L262 TraceCheckSpWp]: Trace formula consists of 535 conjuncts, 25 conjunts are in the unsatisfiable core [2023-12-21 02:07:03,585 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 02:07:03,670 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 02:07:03,803 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 35 treesize of output 19 [2023-12-21 02:07:03,904 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 35 treesize of output 19 [2023-12-21 02:07:04,215 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 45 treesize of output 29 [2023-12-21 02:07:04,230 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 33 proven. 345 refuted. 0 times theorem prover too weak. 382 trivial. 0 not checked. [2023-12-21 02:07:04,231 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 02:07:04,360 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [906368339] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 02:07:04,360 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-21 02:07:04,360 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 12 [2023-12-21 02:07:04,360 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [630886388] [2023-12-21 02:07:04,361 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-21 02:07:04,362 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-12-21 02:07:04,362 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 02:07:04,362 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-12-21 02:07:04,363 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2023-12-21 02:07:04,363 INFO L87 Difference]: Start difference. First operand 118 states and 165 transitions. Second operand has 12 states, 11 states have (on average 8.363636363636363) internal successors, (92), 12 states have internal predecessors, (92), 5 states have call successors, (40), 4 states have call predecessors, (40), 6 states have return successors, (40), 4 states have call predecessors, (40), 5 states have call successors, (40) [2023-12-21 02:07:04,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 02:07:04,708 INFO L93 Difference]: Finished difference Result 245 states and 339 transitions. [2023-12-21 02:07:04,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-21 02:07:04,708 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 8.363636363636363) internal successors, (92), 12 states have internal predecessors, (92), 5 states have call successors, (40), 4 states have call predecessors, (40), 6 states have return successors, (40), 4 states have call predecessors, (40), 5 states have call successors, (40) Word has length 152 [2023-12-21 02:07:04,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 02:07:04,709 INFO L225 Difference]: With dead ends: 245 [2023-12-21 02:07:04,709 INFO L226 Difference]: Without dead ends: 128 [2023-12-21 02:07:04,710 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 322 GetRequests, 303 SyntacticMatches, 2 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=89, Invalid=253, Unknown=0, NotChecked=0, Total=342 [2023-12-21 02:07:04,710 INFO L413 NwaCegarLoop]: 107 mSDtfsCounter, 171 mSDsluCounter, 586 mSDsCounter, 0 mSdLazyCounter, 396 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 188 SdHoareTripleChecker+Valid, 693 SdHoareTripleChecker+Invalid, 436 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 396 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-21 02:07:04,711 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [188 Valid, 693 Invalid, 436 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 396 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-21 02:07:04,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2023-12-21 02:07:04,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 121. [2023-12-21 02:07:04,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 121 states, 95 states have (on average 1.2947368421052632) internal successors, (123), 96 states have internal predecessors, (123), 22 states have call successors, (22), 3 states have call predecessors, (22), 3 states have return successors, (22), 21 states have call predecessors, (22), 22 states have call successors, (22) [2023-12-21 02:07:04,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 167 transitions. [2023-12-21 02:07:04,727 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 167 transitions. Word has length 152 [2023-12-21 02:07:04,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 02:07:04,727 INFO L495 AbstractCegarLoop]: Abstraction has 121 states and 167 transitions. [2023-12-21 02:07:04,727 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 8.363636363636363) internal successors, (92), 12 states have internal predecessors, (92), 5 states have call successors, (40), 4 states have call predecessors, (40), 6 states have return successors, (40), 4 states have call predecessors, (40), 5 states have call successors, (40) [2023-12-21 02:07:04,728 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 167 transitions. [2023-12-21 02:07:04,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2023-12-21 02:07:04,730 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 02:07:04,730 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:07:04,737 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-12-21 02:07:04,935 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,SelfDestructingSolverStorable5 [2023-12-21 02:07:04,935 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 02:07:04,936 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 02:07:04,936 INFO L85 PathProgramCache]: Analyzing trace with hash 80239047, now seen corresponding path program 1 times [2023-12-21 02:07:04,936 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 02:07:04,936 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1512227712] [2023-12-21 02:07:04,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:07:04,936 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 02:07:04,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:05,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 02:07:05,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:05,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 02:07:05,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:05,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 02:07:05,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:05,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 02:07:05,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:05,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-21 02:07:05,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:05,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 02:07:05,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:05,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-21 02:07:05,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:05,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 02:07:05,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:05,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 02:07:05,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:05,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 02:07:05,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:05,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-21 02:07:05,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:05,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 02:07:05,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:05,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-21 02:07:05,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:05,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-21 02:07:05,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:05,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-21 02:07:05,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:05,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-21 02:07:05,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:05,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-21 02:07:05,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:05,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-21 02:07:05,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:05,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-21 02:07:05,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:05,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-12-21 02:07:05,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:05,601 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 3 proven. 54 refuted. 0 times theorem prover too weak. 703 trivial. 0 not checked. [2023-12-21 02:07:05,601 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 02:07:05,601 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1512227712] [2023-12-21 02:07:05,601 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1512227712] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 02:07:05,602 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1088276563] [2023-12-21 02:07:05,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:07:05,602 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 02:07:05,602 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 02:07:05,603 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 02:07:05,607 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 02:07:05,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:05,762 INFO L262 TraceCheckSpWp]: Trace formula consists of 538 conjuncts, 38 conjunts are in the unsatisfiable core [2023-12-21 02:07:05,779 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 02:07:06,976 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 02:07:07,233 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 02:07:07,574 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-21 02:07:07,575 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-21 02:07:07,576 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 32 [2023-12-21 02:07:07,624 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-21 02:07:07,625 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-21 02:07:07,629 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-21 02:07:07,629 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 44 treesize of output 20 [2023-12-21 02:07:07,657 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 52 proven. 147 refuted. 0 times theorem prover too weak. 561 trivial. 0 not checked. [2023-12-21 02:07:07,658 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 02:07:08,075 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1088276563] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 02:07:08,075 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-21 02:07:08,076 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 13] total 23 [2023-12-21 02:07:08,076 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1778288703] [2023-12-21 02:07:08,076 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-21 02:07:08,076 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2023-12-21 02:07:08,076 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 02:07:08,077 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2023-12-21 02:07:08,077 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=98, Invalid=832, Unknown=0, NotChecked=0, Total=930 [2023-12-21 02:07:08,077 INFO L87 Difference]: Start difference. First operand 121 states and 167 transitions. Second operand has 23 states, 20 states have (on average 5.25) internal successors, (105), 21 states have internal predecessors, (105), 8 states have call successors, (40), 4 states have call predecessors, (40), 6 states have return successors, (40), 6 states have call predecessors, (40), 8 states have call successors, (40) [2023-12-21 02:07:10,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 02:07:10,204 INFO L93 Difference]: Finished difference Result 303 states and 404 transitions. [2023-12-21 02:07:10,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2023-12-21 02:07:10,207 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 20 states have (on average 5.25) internal successors, (105), 21 states have internal predecessors, (105), 8 states have call successors, (40), 4 states have call predecessors, (40), 6 states have return successors, (40), 6 states have call predecessors, (40), 8 states have call successors, (40) Word has length 152 [2023-12-21 02:07:10,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 02:07:10,209 INFO L225 Difference]: With dead ends: 303 [2023-12-21 02:07:10,209 INFO L226 Difference]: Without dead ends: 187 [2023-12-21 02:07:10,210 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 278 GetRequests, 221 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 606 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=648, Invalid=2774, Unknown=0, NotChecked=0, Total=3422 [2023-12-21 02:07:10,210 INFO L413 NwaCegarLoop]: 102 mSDtfsCounter, 874 mSDsluCounter, 995 mSDsCounter, 0 mSdLazyCounter, 1043 mSolverCounterSat, 226 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 874 SdHoareTripleChecker+Valid, 1097 SdHoareTripleChecker+Invalid, 1269 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 226 IncrementalHoareTripleChecker+Valid, 1043 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-21 02:07:10,211 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [874 Valid, 1097 Invalid, 1269 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [226 Valid, 1043 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-21 02:07:10,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 187 states. [2023-12-21 02:07:10,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 187 to 133. [2023-12-21 02:07:10,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 133 states, 106 states have (on average 1.2641509433962264) internal successors, (134), 106 states have internal predecessors, (134), 20 states have call successors, (20), 6 states have call predecessors, (20), 6 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-12-21 02:07:10,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 174 transitions. [2023-12-21 02:07:10,230 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 174 transitions. Word has length 152 [2023-12-21 02:07:10,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 02:07:10,231 INFO L495 AbstractCegarLoop]: Abstraction has 133 states and 174 transitions. [2023-12-21 02:07:10,231 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 20 states have (on average 5.25) internal successors, (105), 21 states have internal predecessors, (105), 8 states have call successors, (40), 4 states have call predecessors, (40), 6 states have return successors, (40), 6 states have call predecessors, (40), 8 states have call successors, (40) [2023-12-21 02:07:10,231 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 174 transitions. [2023-12-21 02:07:10,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2023-12-21 02:07:10,232 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 02:07:10,232 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:07:10,240 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 02:07:10,438 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,SelfDestructingSolverStorable6 [2023-12-21 02:07:10,438 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 02:07:10,439 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 02:07:10,439 INFO L85 PathProgramCache]: Analyzing trace with hash 392104301, now seen corresponding path program 1 times [2023-12-21 02:07:10,439 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 02:07:10,439 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [706369945] [2023-12-21 02:07:10,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:07:10,439 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 02:07:10,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:11,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 02:07:11,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:11,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 02:07:11,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:11,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 02:07:11,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:11,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 02:07:11,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:11,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-21 02:07:11,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:11,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 02:07:11,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:11,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-21 02:07:11,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:11,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 02:07:11,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:11,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 02:07:11,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:11,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 02:07:11,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:11,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-21 02:07:11,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:11,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 02:07:11,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:11,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-21 02:07:11,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:11,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-21 02:07:11,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:11,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-21 02:07:11,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:11,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-21 02:07:11,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:11,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-21 02:07:11,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:11,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-21 02:07:11,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:11,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-21 02:07:11,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:11,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-12-21 02:07:11,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:11,324 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-12-21 02:07:11,324 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 02:07:11,324 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [706369945] [2023-12-21 02:07:11,324 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [706369945] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 02:07:11,325 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 02:07:11,325 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-21 02:07:11,325 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [153942475] [2023-12-21 02:07:11,325 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 02:07:11,325 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-21 02:07:11,326 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 02:07:11,326 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-21 02:07:11,326 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2023-12-21 02:07:11,326 INFO L87 Difference]: Start difference. First operand 133 states and 174 transitions. Second operand has 10 states, 10 states have (on average 5.6) internal successors, (56), 10 states have internal predecessors, (56), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-21 02:07:12,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 02:07:12,443 INFO L93 Difference]: Finished difference Result 426 states and 569 transitions. [2023-12-21 02:07:12,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-12-21 02:07:12,444 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.6) internal successors, (56), 10 states have internal predecessors, (56), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 153 [2023-12-21 02:07:12,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 02:07:12,445 INFO L225 Difference]: With dead ends: 426 [2023-12-21 02:07:12,445 INFO L226 Difference]: Without dead ends: 294 [2023-12-21 02:07:12,446 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=114, Invalid=348, Unknown=0, NotChecked=0, Total=462 [2023-12-21 02:07:12,446 INFO L413 NwaCegarLoop]: 239 mSDtfsCounter, 441 mSDsluCounter, 1099 mSDsCounter, 0 mSdLazyCounter, 610 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 441 SdHoareTripleChecker+Valid, 1338 SdHoareTripleChecker+Invalid, 629 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 610 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-21 02:07:12,446 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [441 Valid, 1338 Invalid, 629 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 610 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-21 02:07:12,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 294 states. [2023-12-21 02:07:12,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 294 to 202. [2023-12-21 02:07:12,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 202 states, 164 states have (on average 1.274390243902439) internal successors, (209), 165 states have internal predecessors, (209), 28 states have call successors, (28), 9 states have call predecessors, (28), 9 states have return successors, (28), 27 states have call predecessors, (28), 28 states have call successors, (28) [2023-12-21 02:07:12,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 202 states and 265 transitions. [2023-12-21 02:07:12,482 INFO L78 Accepts]: Start accepts. Automaton has 202 states and 265 transitions. Word has length 153 [2023-12-21 02:07:12,482 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 02:07:12,482 INFO L495 AbstractCegarLoop]: Abstraction has 202 states and 265 transitions. [2023-12-21 02:07:12,482 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.6) internal successors, (56), 10 states have internal predecessors, (56), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-21 02:07:12,483 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 265 transitions. [2023-12-21 02:07:12,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2023-12-21 02:07:12,483 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 02:07:12,484 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:07:12,484 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-12-21 02:07:12,484 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 02:07:12,484 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 02:07:12,484 INFO L85 PathProgramCache]: Analyzing trace with hash -194701713, now seen corresponding path program 1 times [2023-12-21 02:07:12,484 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 02:07:12,484 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [29849581] [2023-12-21 02:07:12,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:07:12,484 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 02:07:12,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:12,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 02:07:12,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:12,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 02:07:12,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:12,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 02:07:12,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:12,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 02:07:12,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:12,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-21 02:07:12,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:12,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 02:07:12,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:12,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-21 02:07:12,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:12,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 02:07:12,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:12,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 02:07:12,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:12,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 02:07:12,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:12,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-21 02:07:12,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:12,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 02:07:12,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:12,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-21 02:07:12,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:12,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-21 02:07:12,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:12,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-21 02:07:12,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:12,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-21 02:07:12,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:12,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-21 02:07:12,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:12,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-21 02:07:12,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:12,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-21 02:07:12,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:12,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-12-21 02:07:12,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:12,979 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-12-21 02:07:12,980 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 02:07:12,980 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [29849581] [2023-12-21 02:07:12,980 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [29849581] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 02:07:12,980 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 02:07:12,980 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 02:07:12,980 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1999946056] [2023-12-21 02:07:12,980 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 02:07:12,980 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-21 02:07:12,980 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 02:07:12,981 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-21 02:07:12,981 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-12-21 02:07:12,981 INFO L87 Difference]: Start difference. First operand 202 states and 265 transitions. Second operand has 7 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-21 02:07:13,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 02:07:13,278 INFO L93 Difference]: Finished difference Result 494 states and 650 transitions. [2023-12-21 02:07:13,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-21 02:07:13,279 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 153 [2023-12-21 02:07:13,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 02:07:13,282 INFO L225 Difference]: With dead ends: 494 [2023-12-21 02:07:13,282 INFO L226 Difference]: Without dead ends: 293 [2023-12-21 02:07:13,283 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2023-12-21 02:07:13,284 INFO L413 NwaCegarLoop]: 207 mSDtfsCounter, 305 mSDsluCounter, 406 mSDsCounter, 0 mSdLazyCounter, 239 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 305 SdHoareTripleChecker+Valid, 613 SdHoareTripleChecker+Invalid, 259 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 239 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-21 02:07:13,284 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [305 Valid, 613 Invalid, 259 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 239 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-21 02:07:13,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 293 states. [2023-12-21 02:07:13,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 293 to 199. [2023-12-21 02:07:13,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 199 states, 161 states have (on average 1.2670807453416149) internal successors, (204), 162 states have internal predecessors, (204), 28 states have call successors, (28), 9 states have call predecessors, (28), 9 states have return successors, (28), 27 states have call predecessors, (28), 28 states have call successors, (28) [2023-12-21 02:07:13,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 199 states and 260 transitions. [2023-12-21 02:07:13,329 INFO L78 Accepts]: Start accepts. Automaton has 199 states and 260 transitions. Word has length 153 [2023-12-21 02:07:13,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 02:07:13,330 INFO L495 AbstractCegarLoop]: Abstraction has 199 states and 260 transitions. [2023-12-21 02:07:13,330 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-21 02:07:13,330 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 260 transitions. [2023-12-21 02:07:13,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2023-12-21 02:07:13,331 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 02:07:13,331 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:07:13,331 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-12-21 02:07:13,331 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 02:07:13,331 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 02:07:13,331 INFO L85 PathProgramCache]: Analyzing trace with hash -1196243601, now seen corresponding path program 1 times [2023-12-21 02:07:13,331 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 02:07:13,331 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [145015492] [2023-12-21 02:07:13,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:07:13,332 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 02:07:13,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:13,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 02:07:13,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:13,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 02:07:13,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:13,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 02:07:13,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:13,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 02:07:13,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:13,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-21 02:07:13,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:13,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 02:07:13,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:13,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-21 02:07:13,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:13,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 02:07:13,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:13,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 02:07:13,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:13,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 02:07:13,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:13,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-21 02:07:13,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:13,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 02:07:13,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:13,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-21 02:07:13,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:13,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-21 02:07:13,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:13,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-21 02:07:13,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:13,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-21 02:07:13,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:13,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-21 02:07:13,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:13,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-21 02:07:13,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:13,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-21 02:07:13,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:13,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-12-21 02:07:13,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:13,813 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-12-21 02:07:13,813 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 02:07:13,813 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [145015492] [2023-12-21 02:07:13,813 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [145015492] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 02:07:13,813 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 02:07:13,813 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 02:07:13,813 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1442458005] [2023-12-21 02:07:13,814 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 02:07:13,814 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-21 02:07:13,814 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 02:07:13,814 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-21 02:07:13,814 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-12-21 02:07:13,814 INFO L87 Difference]: Start difference. First operand 199 states and 260 transitions. Second operand has 7 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-21 02:07:14,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 02:07:14,099 INFO L93 Difference]: Finished difference Result 490 states and 643 transitions. [2023-12-21 02:07:14,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-21 02:07:14,099 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 153 [2023-12-21 02:07:14,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 02:07:14,100 INFO L225 Difference]: With dead ends: 490 [2023-12-21 02:07:14,100 INFO L226 Difference]: Without dead ends: 292 [2023-12-21 02:07:14,101 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2023-12-21 02:07:14,101 INFO L413 NwaCegarLoop]: 184 mSDtfsCounter, 327 mSDsluCounter, 369 mSDsCounter, 0 mSdLazyCounter, 239 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 327 SdHoareTripleChecker+Valid, 553 SdHoareTripleChecker+Invalid, 256 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 239 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-21 02:07:14,101 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [327 Valid, 553 Invalid, 256 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 239 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-21 02:07:14,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 292 states. [2023-12-21 02:07:14,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 292 to 199. [2023-12-21 02:07:14,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 199 states, 161 states have (on average 1.2608695652173914) internal successors, (203), 162 states have internal predecessors, (203), 28 states have call successors, (28), 9 states have call predecessors, (28), 9 states have return successors, (28), 27 states have call predecessors, (28), 28 states have call successors, (28) [2023-12-21 02:07:14,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 199 states and 259 transitions. [2023-12-21 02:07:14,131 INFO L78 Accepts]: Start accepts. Automaton has 199 states and 259 transitions. Word has length 153 [2023-12-21 02:07:14,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 02:07:14,131 INFO L495 AbstractCegarLoop]: Abstraction has 199 states and 259 transitions. [2023-12-21 02:07:14,132 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-21 02:07:14,132 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 259 transitions. [2023-12-21 02:07:14,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2023-12-21 02:07:14,133 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 02:07:14,133 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:07:14,133 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-12-21 02:07:14,133 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 02:07:14,134 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 02:07:14,134 INFO L85 PathProgramCache]: Analyzing trace with hash -1783049615, now seen corresponding path program 1 times [2023-12-21 02:07:14,134 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 02:07:14,134 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1960616827] [2023-12-21 02:07:14,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:07:14,134 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 02:07:14,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:17,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 02:07:17,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:17,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 02:07:17,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:17,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 02:07:17,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:17,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 02:07:17,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:17,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-21 02:07:17,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:17,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 02:07:17,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:17,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-21 02:07:17,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:17,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 02:07:17,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:17,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 02:07:17,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:17,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 02:07:17,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:17,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-21 02:07:17,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:17,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 02:07:17,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:17,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-21 02:07:17,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:17,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-21 02:07:17,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:17,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-21 02:07:17,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:17,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-21 02:07:17,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:17,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-21 02:07:17,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:17,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-21 02:07:17,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:17,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-21 02:07:17,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:17,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-12-21 02:07:17,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:17,580 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 69 proven. 39 refuted. 0 times theorem prover too weak. 652 trivial. 0 not checked. [2023-12-21 02:07:17,580 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 02:07:17,580 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1960616827] [2023-12-21 02:07:17,580 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1960616827] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 02:07:17,580 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [126520699] [2023-12-21 02:07:17,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:07:17,581 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 02:07:17,581 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 02:07:17,582 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 02:07:17,606 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 02:07:17,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:17,745 INFO L262 TraceCheckSpWp]: Trace formula consists of 542 conjuncts, 41 conjunts are in the unsatisfiable core [2023-12-21 02:07:17,751 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 02:07:18,534 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 8 treesize of output 1 [2023-12-21 02:07:18,621 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-21 02:07:18,622 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 65 treesize of output 41 [2023-12-21 02:07:18,812 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-21 02:07:18,812 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 81 treesize of output 69 [2023-12-21 02:07:18,986 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 57 refuted. 0 times theorem prover too weak. 703 trivial. 0 not checked. [2023-12-21 02:07:18,986 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 02:07:19,289 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-12-21 02:07:19,289 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [126520699] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-21 02:07:19,289 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2023-12-21 02:07:19,289 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [30, 11] total 42 [2023-12-21 02:07:19,289 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1800277307] [2023-12-21 02:07:19,289 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 02:07:19,290 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-21 02:07:19,290 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 02:07:19,290 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-21 02:07:19,291 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=120, Invalid=1602, Unknown=0, NotChecked=0, Total=1722 [2023-12-21 02:07:19,291 INFO L87 Difference]: Start difference. First operand 199 states and 259 transitions. Second operand has 8 states, 8 states have (on average 7.0) internal successors, (56), 8 states have internal predecessors, (56), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-21 02:07:19,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 02:07:19,857 INFO L93 Difference]: Finished difference Result 521 states and 685 transitions. [2023-12-21 02:07:19,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-21 02:07:19,858 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.0) internal successors, (56), 8 states have internal predecessors, (56), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 153 [2023-12-21 02:07:19,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 02:07:19,859 INFO L225 Difference]: With dead ends: 521 [2023-12-21 02:07:19,859 INFO L226 Difference]: Without dead ends: 323 [2023-12-21 02:07:19,860 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 381 GetRequests, 333 SyntacticMatches, 1 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 575 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=167, Invalid=2185, Unknown=0, NotChecked=0, Total=2352 [2023-12-21 02:07:19,860 INFO L413 NwaCegarLoop]: 233 mSDtfsCounter, 220 mSDsluCounter, 1013 mSDsCounter, 0 mSdLazyCounter, 286 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 220 SdHoareTripleChecker+Valid, 1246 SdHoareTripleChecker+Invalid, 288 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 286 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-21 02:07:19,860 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [220 Valid, 1246 Invalid, 288 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 286 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-21 02:07:19,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 323 states. [2023-12-21 02:07:19,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 323 to 196. [2023-12-21 02:07:19,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 196 states, 158 states have (on average 1.259493670886076) internal successors, (199), 159 states have internal predecessors, (199), 28 states have call successors, (28), 9 states have call predecessors, (28), 9 states have return successors, (28), 27 states have call predecessors, (28), 28 states have call successors, (28) [2023-12-21 02:07:19,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 196 states to 196 states and 255 transitions. [2023-12-21 02:07:19,892 INFO L78 Accepts]: Start accepts. Automaton has 196 states and 255 transitions. Word has length 153 [2023-12-21 02:07:19,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 02:07:19,892 INFO L495 AbstractCegarLoop]: Abstraction has 196 states and 255 transitions. [2023-12-21 02:07:19,892 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.0) internal successors, (56), 8 states have internal predecessors, (56), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-21 02:07:19,892 INFO L276 IsEmpty]: Start isEmpty. Operand 196 states and 255 transitions. [2023-12-21 02:07:19,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2023-12-21 02:07:19,893 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 02:07:19,893 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:07:19,904 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 02:07:20,102 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 02:07:20,102 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 02:07:20,102 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 02:07:20,102 INFO L85 PathProgramCache]: Analyzing trace with hash -360052923, now seen corresponding path program 1 times [2023-12-21 02:07:20,103 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 02:07:20,103 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1893537206] [2023-12-21 02:07:20,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:07:20,103 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 02:07:20,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:20,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 02:07:20,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:20,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 02:07:20,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:20,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 02:07:20,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:20,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 02:07:20,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:20,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-21 02:07:20,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:20,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 02:07:20,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:20,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-21 02:07:20,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:20,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 02:07:20,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:20,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 02:07:20,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:20,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 02:07:20,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:20,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-21 02:07:20,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:20,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 02:07:20,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:20,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-21 02:07:20,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:20,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-21 02:07:20,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:20,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-21 02:07:20,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:20,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-21 02:07:20,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:20,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-21 02:07:20,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:20,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-21 02:07:20,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:20,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-21 02:07:20,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:20,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-12-21 02:07:20,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:20,354 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-12-21 02:07:20,354 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 02:07:20,354 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1893537206] [2023-12-21 02:07:20,354 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1893537206] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 02:07:20,354 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 02:07:20,354 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-21 02:07:20,354 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [425932442] [2023-12-21 02:07:20,354 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 02:07:20,355 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-21 02:07:20,355 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 02:07:20,355 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-21 02:07:20,355 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-12-21 02:07:20,355 INFO L87 Difference]: Start difference. First operand 196 states and 255 transitions. Second operand has 8 states, 8 states have (on average 7.125) internal successors, (57), 8 states have internal predecessors, (57), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-21 02:07:20,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 02:07:20,655 INFO L93 Difference]: Finished difference Result 526 states and 699 transitions. [2023-12-21 02:07:20,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-21 02:07:20,655 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.125) internal successors, (57), 8 states have internal predecessors, (57), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 154 [2023-12-21 02:07:20,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 02:07:20,656 INFO L225 Difference]: With dead ends: 526 [2023-12-21 02:07:20,657 INFO L226 Difference]: Without dead ends: 331 [2023-12-21 02:07:20,657 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2023-12-21 02:07:20,658 INFO L413 NwaCegarLoop]: 126 mSDtfsCounter, 290 mSDsluCounter, 441 mSDsCounter, 0 mSdLazyCounter, 436 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 290 SdHoareTripleChecker+Valid, 567 SdHoareTripleChecker+Invalid, 441 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 436 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-21 02:07:20,658 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [290 Valid, 567 Invalid, 441 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 436 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-21 02:07:20,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 331 states. [2023-12-21 02:07:20,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 331 to 221. [2023-12-21 02:07:20,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 221 states, 183 states have (on average 1.2677595628415301) internal successors, (232), 184 states have internal predecessors, (232), 28 states have call successors, (28), 9 states have call predecessors, (28), 9 states have return successors, (28), 27 states have call predecessors, (28), 28 states have call successors, (28) [2023-12-21 02:07:20,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 221 states to 221 states and 288 transitions. [2023-12-21 02:07:20,691 INFO L78 Accepts]: Start accepts. Automaton has 221 states and 288 transitions. Word has length 154 [2023-12-21 02:07:20,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 02:07:20,692 INFO L495 AbstractCegarLoop]: Abstraction has 221 states and 288 transitions. [2023-12-21 02:07:20,693 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.125) internal successors, (57), 8 states have internal predecessors, (57), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-21 02:07:20,693 INFO L276 IsEmpty]: Start isEmpty. Operand 221 states and 288 transitions. [2023-12-21 02:07:20,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2023-12-21 02:07:20,694 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 02:07:20,694 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:07:20,694 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-12-21 02:07:20,695 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 02:07:20,695 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 02:07:20,695 INFO L85 PathProgramCache]: Analyzing trace with hash -1371170173, now seen corresponding path program 1 times [2023-12-21 02:07:20,695 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 02:07:20,695 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1446240591] [2023-12-21 02:07:20,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:07:20,695 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 02:07:20,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:20,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 02:07:20,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:20,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 02:07:20,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:20,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 02:07:20,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:20,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 02:07:20,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:20,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-21 02:07:20,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:20,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 02:07:20,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:20,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-21 02:07:20,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:20,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 02:07:20,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:20,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 02:07:20,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:20,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 02:07:20,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:20,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-21 02:07:20,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:20,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 02:07:20,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:21,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-21 02:07:21,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:21,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-21 02:07:21,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:21,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-21 02:07:21,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:21,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-21 02:07:21,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:21,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-21 02:07:21,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:21,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-21 02:07:21,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:21,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-21 02:07:21,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:21,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-12-21 02:07:21,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:21,018 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-12-21 02:07:21,018 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 02:07:21,018 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1446240591] [2023-12-21 02:07:21,018 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1446240591] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 02:07:21,018 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 02:07:21,018 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 02:07:21,019 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [716573115] [2023-12-21 02:07:21,020 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 02:07:21,020 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-21 02:07:21,020 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 02:07:21,021 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-21 02:07:21,021 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-12-21 02:07:21,021 INFO L87 Difference]: Start difference. First operand 221 states and 288 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, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-21 02:07:21,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 02:07:21,302 INFO L93 Difference]: Finished difference Result 613 states and 803 transitions. [2023-12-21 02:07:21,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-21 02:07:21,303 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, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 154 [2023-12-21 02:07:21,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 02:07:21,304 INFO L225 Difference]: With dead ends: 613 [2023-12-21 02:07:21,304 INFO L226 Difference]: Without dead ends: 393 [2023-12-21 02:07:21,304 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2023-12-21 02:07:21,305 INFO L413 NwaCegarLoop]: 143 mSDtfsCounter, 281 mSDsluCounter, 357 mSDsCounter, 0 mSdLazyCounter, 283 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 281 SdHoareTripleChecker+Valid, 500 SdHoareTripleChecker+Invalid, 286 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 283 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-21 02:07:21,305 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [281 Valid, 500 Invalid, 286 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 283 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-21 02:07:21,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 393 states. [2023-12-21 02:07:21,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 393 to 245. [2023-12-21 02:07:21,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 245 states, 207 states have (on average 1.2705314009661837) internal successors, (263), 208 states have internal predecessors, (263), 28 states have call successors, (28), 9 states have call predecessors, (28), 9 states have return successors, (28), 27 states have call predecessors, (28), 28 states have call successors, (28) [2023-12-21 02:07:21,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 245 states to 245 states and 319 transitions. [2023-12-21 02:07:21,336 INFO L78 Accepts]: Start accepts. Automaton has 245 states and 319 transitions. Word has length 154 [2023-12-21 02:07:21,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 02:07:21,336 INFO L495 AbstractCegarLoop]: Abstraction has 245 states and 319 transitions. [2023-12-21 02:07:21,336 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, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-21 02:07:21,336 INFO L276 IsEmpty]: Start isEmpty. Operand 245 states and 319 transitions. [2023-12-21 02:07:21,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2023-12-21 02:07:21,339 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 02:07:21,339 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:07:21,339 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-12-21 02:07:21,339 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 02:07:21,339 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 02:07:21,339 INFO L85 PathProgramCache]: Analyzing trace with hash -85293309, now seen corresponding path program 1 times [2023-12-21 02:07:21,339 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 02:07:21,339 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1360212077] [2023-12-21 02:07:21,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:07:21,339 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 02:07:21,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:21,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 02:07:21,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:21,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 02:07:21,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:21,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 02:07:21,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:21,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 02:07:21,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:21,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-21 02:07:21,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:21,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 02:07:21,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:21,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-21 02:07:21,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:21,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 02:07:21,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:21,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 02:07:21,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:21,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 02:07:21,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:21,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-21 02:07:21,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:21,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 02:07:21,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:21,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-21 02:07:21,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:21,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-21 02:07:21,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:21,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-21 02:07:21,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:21,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-21 02:07:21,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:21,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-21 02:07:21,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:21,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-21 02:07:21,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:21,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-21 02:07:21,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:21,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-12-21 02:07:21,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:21,731 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-12-21 02:07:21,731 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 02:07:21,731 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1360212077] [2023-12-21 02:07:21,731 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1360212077] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 02:07:21,731 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 02:07:21,731 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-21 02:07:21,732 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [26897427] [2023-12-21 02:07:21,732 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 02:07:21,733 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-21 02:07:21,733 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 02:07:21,733 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-21 02:07:21,733 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2023-12-21 02:07:21,733 INFO L87 Difference]: Start difference. First operand 245 states and 319 transitions. Second operand has 9 states, 9 states have (on average 6.333333333333333) internal successors, (57), 9 states have internal predecessors, (57), 3 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2023-12-21 02:07:22,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 02:07:22,091 INFO L93 Difference]: Finished difference Result 527 states and 686 transitions. [2023-12-21 02:07:22,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-21 02:07:22,092 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.333333333333333) internal successors, (57), 9 states have internal predecessors, (57), 3 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) Word has length 154 [2023-12-21 02:07:22,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 02:07:22,093 INFO L225 Difference]: With dead ends: 527 [2023-12-21 02:07:22,093 INFO L226 Difference]: Without dead ends: 283 [2023-12-21 02:07:22,093 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=60, Invalid=122, Unknown=0, NotChecked=0, Total=182 [2023-12-21 02:07:22,094 INFO L413 NwaCegarLoop]: 175 mSDtfsCounter, 495 mSDsluCounter, 478 mSDsCounter, 0 mSdLazyCounter, 354 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 495 SdHoareTripleChecker+Valid, 653 SdHoareTripleChecker+Invalid, 417 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 354 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-21 02:07:22,094 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [495 Valid, 653 Invalid, 417 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 354 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-21 02:07:22,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 283 states. [2023-12-21 02:07:22,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 283 to 191. [2023-12-21 02:07:22,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 191 states, 163 states have (on average 1.2576687116564418) internal successors, (205), 163 states have internal predecessors, (205), 20 states have call successors, (20), 7 states have call predecessors, (20), 7 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-12-21 02:07:22,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 245 transitions. [2023-12-21 02:07:22,119 INFO L78 Accepts]: Start accepts. Automaton has 191 states and 245 transitions. Word has length 154 [2023-12-21 02:07:22,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 02:07:22,120 INFO L495 AbstractCegarLoop]: Abstraction has 191 states and 245 transitions. [2023-12-21 02:07:22,120 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.333333333333333) internal successors, (57), 9 states have internal predecessors, (57), 3 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2023-12-21 02:07:22,120 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 245 transitions. [2023-12-21 02:07:22,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2023-12-21 02:07:22,121 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 02:07:22,121 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:07:22,121 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-12-21 02:07:22,121 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 02:07:22,122 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 02:07:22,122 INFO L85 PathProgramCache]: Analyzing trace with hash -1096410559, now seen corresponding path program 1 times [2023-12-21 02:07:22,122 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 02:07:22,122 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [607553721] [2023-12-21 02:07:22,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:07:22,122 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 02:07:22,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:22,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 02:07:22,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:22,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 02:07:22,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:22,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 02:07:22,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:22,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 02:07:22,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:22,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-21 02:07:22,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:22,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 02:07:22,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:22,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-21 02:07:22,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:22,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 02:07:22,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:22,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 02:07:22,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:22,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 02:07:22,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:22,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-21 02:07:22,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:22,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 02:07:22,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:22,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-21 02:07:22,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:22,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-21 02:07:22,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:22,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-21 02:07:22,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:22,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-21 02:07:22,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:22,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-21 02:07:22,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:22,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-21 02:07:22,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:22,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-21 02:07:22,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:22,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-12-21 02:07:22,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:22,352 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-12-21 02:07:22,353 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 02:07:22,353 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [607553721] [2023-12-21 02:07:22,353 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [607553721] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 02:07:22,353 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 02:07:22,353 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-21 02:07:22,353 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1259829625] [2023-12-21 02:07:22,353 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 02:07:22,353 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-21 02:07:22,353 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 02:07:22,354 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-21 02:07:22,354 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2023-12-21 02:07:22,354 INFO L87 Difference]: Start difference. First operand 191 states and 245 transitions. Second operand has 9 states, 9 states have (on average 6.333333333333333) internal successors, (57), 9 states have internal predecessors, (57), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2023-12-21 02:07:22,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 02:07:22,623 INFO L93 Difference]: Finished difference Result 452 states and 585 transitions. [2023-12-21 02:07:22,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-21 02:07:22,623 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.333333333333333) internal successors, (57), 9 states have internal predecessors, (57), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 154 [2023-12-21 02:07:22,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 02:07:22,624 INFO L225 Difference]: With dead ends: 452 [2023-12-21 02:07:22,625 INFO L226 Difference]: Without dead ends: 262 [2023-12-21 02:07:22,626 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=59, Invalid=151, Unknown=0, NotChecked=0, Total=210 [2023-12-21 02:07:22,626 INFO L413 NwaCegarLoop]: 183 mSDtfsCounter, 386 mSDsluCounter, 460 mSDsCounter, 0 mSdLazyCounter, 388 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 386 SdHoareTripleChecker+Valid, 643 SdHoareTripleChecker+Invalid, 412 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 388 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-21 02:07:22,626 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [386 Valid, 643 Invalid, 412 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 388 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-21 02:07:22,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 262 states. [2023-12-21 02:07:22,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 262 to 213. [2023-12-21 02:07:22,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 213 states, 185 states have (on average 1.2594594594594595) internal successors, (233), 185 states have internal predecessors, (233), 20 states have call successors, (20), 7 states have call predecessors, (20), 7 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-12-21 02:07:22,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 213 states to 213 states and 273 transitions. [2023-12-21 02:07:22,653 INFO L78 Accepts]: Start accepts. Automaton has 213 states and 273 transitions. Word has length 154 [2023-12-21 02:07:22,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 02:07:22,654 INFO L495 AbstractCegarLoop]: Abstraction has 213 states and 273 transitions. [2023-12-21 02:07:22,654 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.333333333333333) internal successors, (57), 9 states have internal predecessors, (57), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2023-12-21 02:07:22,654 INFO L276 IsEmpty]: Start isEmpty. Operand 213 states and 273 transitions. [2023-12-21 02:07:22,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2023-12-21 02:07:22,655 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 02:07:22,655 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:07:22,655 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-12-21 02:07:22,655 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 02:07:22,656 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 02:07:22,656 INFO L85 PathProgramCache]: Analyzing trace with hash 1419982353, now seen corresponding path program 1 times [2023-12-21 02:07:22,656 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 02:07:22,656 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1749066171] [2023-12-21 02:07:22,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:07:22,656 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 02:07:22,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:23,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 02:07:23,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:23,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 02:07:23,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:23,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 02:07:23,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:23,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 02:07:23,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:23,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-21 02:07:23,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:23,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 02:07:23,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:23,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-21 02:07:23,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:23,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 02:07:23,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:23,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 02:07:23,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:23,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 02:07:23,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:23,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-21 02:07:23,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:23,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 02:07:23,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:23,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-21 02:07:23,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:23,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-21 02:07:23,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:23,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-21 02:07:23,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:23,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-21 02:07:23,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:23,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-21 02:07:23,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:23,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-21 02:07:23,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:23,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-21 02:07:23,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:23,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-12-21 02:07:23,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:23,626 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-12-21 02:07:23,627 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 02:07:23,627 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1749066171] [2023-12-21 02:07:23,627 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1749066171] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 02:07:23,627 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 02:07:23,627 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2023-12-21 02:07:23,627 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1132267219] [2023-12-21 02:07:23,627 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 02:07:23,628 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-12-21 02:07:23,628 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 02:07:23,628 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-12-21 02:07:23,628 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2023-12-21 02:07:23,629 INFO L87 Difference]: Start difference. First operand 213 states and 273 transitions. Second operand has 14 states, 13 states have (on average 4.461538461538462) internal successors, (58), 14 states have internal predecessors, (58), 3 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 2 states have call predecessors, (20), 3 states have call successors, (20) [2023-12-21 02:07:25,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 02:07:25,787 INFO L93 Difference]: Finished difference Result 836 states and 1086 transitions. [2023-12-21 02:07:25,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2023-12-21 02:07:25,787 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 4.461538461538462) internal successors, (58), 14 states have internal predecessors, (58), 3 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 2 states have call predecessors, (20), 3 states have call successors, (20) Word has length 155 [2023-12-21 02:07:25,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 02:07:25,789 INFO L225 Difference]: With dead ends: 836 [2023-12-21 02:07:25,789 INFO L226 Difference]: Without dead ends: 624 [2023-12-21 02:07:25,790 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 233 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=356, Invalid=1050, Unknown=0, NotChecked=0, Total=1406 [2023-12-21 02:07:25,790 INFO L413 NwaCegarLoop]: 239 mSDtfsCounter, 745 mSDsluCounter, 1742 mSDsCounter, 0 mSdLazyCounter, 686 mSolverCounterSat, 128 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 745 SdHoareTripleChecker+Valid, 1981 SdHoareTripleChecker+Invalid, 814 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 128 IncrementalHoareTripleChecker+Valid, 686 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-21 02:07:25,790 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [745 Valid, 1981 Invalid, 814 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [128 Valid, 686 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-21 02:07:25,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 624 states. [2023-12-21 02:07:25,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 624 to 494. [2023-12-21 02:07:25,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 494 states, 439 states have (on average 1.2733485193621867) internal successors, (559), 439 states have internal predecessors, (559), 40 states have call successors, (40), 14 states have call predecessors, (40), 14 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2023-12-21 02:07:25,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 494 states to 494 states and 639 transitions. [2023-12-21 02:07:25,847 INFO L78 Accepts]: Start accepts. Automaton has 494 states and 639 transitions. Word has length 155 [2023-12-21 02:07:25,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 02:07:25,847 INFO L495 AbstractCegarLoop]: Abstraction has 494 states and 639 transitions. [2023-12-21 02:07:25,847 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 4.461538461538462) internal successors, (58), 14 states have internal predecessors, (58), 3 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 2 states have call predecessors, (20), 3 states have call successors, (20) [2023-12-21 02:07:25,847 INFO L276 IsEmpty]: Start isEmpty. Operand 494 states and 639 transitions. [2023-12-21 02:07:25,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2023-12-21 02:07:25,848 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 02:07:25,848 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:07:25,848 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-12-21 02:07:25,848 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 02:07:25,849 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 02:07:25,849 INFO L85 PathProgramCache]: Analyzing trace with hash 358675781, now seen corresponding path program 1 times [2023-12-21 02:07:25,849 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 02:07:25,849 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [703803364] [2023-12-21 02:07:25,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:07:25,849 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 02:07:25,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:26,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 02:07:26,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:26,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 02:07:26,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:26,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 02:07:26,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:26,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 02:07:26,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:26,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-21 02:07:26,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:26,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 02:07:26,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:26,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-21 02:07:26,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:26,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 02:07:26,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:26,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 02:07:26,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:26,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 02:07:26,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:26,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-21 02:07:26,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:26,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 02:07:26,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:26,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-21 02:07:26,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:26,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-21 02:07:26,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:26,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-21 02:07:26,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:26,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-21 02:07:26,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:26,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-21 02:07:26,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:26,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-21 02:07:26,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:26,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-21 02:07:26,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:26,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-12-21 02:07:26,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:26,163 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-12-21 02:07:26,163 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 02:07:26,163 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [703803364] [2023-12-21 02:07:26,163 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [703803364] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 02:07:26,163 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 02:07:26,164 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 02:07:26,164 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [872385392] [2023-12-21 02:07:26,164 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 02:07:26,164 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-21 02:07:26,164 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 02:07:26,164 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-21 02:07:26,165 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-12-21 02:07:26,165 INFO L87 Difference]: Start difference. First operand 494 states and 639 transitions. Second operand has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 7 states have internal predecessors, (59), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-21 02:07:26,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 02:07:26,363 INFO L93 Difference]: Finished difference Result 1107 states and 1424 transitions. [2023-12-21 02:07:26,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-21 02:07:26,364 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 7 states have internal predecessors, (59), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 156 [2023-12-21 02:07:26,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 02:07:26,365 INFO L225 Difference]: With dead ends: 1107 [2023-12-21 02:07:26,365 INFO L226 Difference]: Without dead ends: 614 [2023-12-21 02:07:26,366 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2023-12-21 02:07:26,366 INFO L413 NwaCegarLoop]: 131 mSDtfsCounter, 184 mSDsluCounter, 291 mSDsCounter, 0 mSdLazyCounter, 155 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 184 SdHoareTripleChecker+Valid, 422 SdHoareTripleChecker+Invalid, 158 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 155 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 02:07:26,367 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [184 Valid, 422 Invalid, 158 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 155 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 02:07:26,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 614 states. [2023-12-21 02:07:26,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 614 to 576. [2023-12-21 02:07:26,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 576 states, 521 states have (on average 1.2533589251439539) internal successors, (653), 521 states have internal predecessors, (653), 40 states have call successors, (40), 14 states have call predecessors, (40), 14 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2023-12-21 02:07:26,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 576 states to 576 states and 733 transitions. [2023-12-21 02:07:26,422 INFO L78 Accepts]: Start accepts. Automaton has 576 states and 733 transitions. Word has length 156 [2023-12-21 02:07:26,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 02:07:26,422 INFO L495 AbstractCegarLoop]: Abstraction has 576 states and 733 transitions. [2023-12-21 02:07:26,422 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 7 states have internal predecessors, (59), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-21 02:07:26,422 INFO L276 IsEmpty]: Start isEmpty. Operand 576 states and 733 transitions. [2023-12-21 02:07:26,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2023-12-21 02:07:26,423 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 02:07:26,423 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:07:26,423 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-12-21 02:07:26,423 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 02:07:26,424 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 02:07:26,424 INFO L85 PathProgramCache]: Analyzing trace with hash -34351229, now seen corresponding path program 1 times [2023-12-21 02:07:26,424 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 02:07:26,424 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1043027153] [2023-12-21 02:07:26,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:07:26,424 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 02:07:26,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:27,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 02:07:27,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:27,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 02:07:27,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:27,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 02:07:27,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:27,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 02:07:27,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:27,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-21 02:07:27,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:27,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 02:07:27,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:27,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-21 02:07:27,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:27,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 02:07:27,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:27,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 02:07:27,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:27,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 02:07:27,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:27,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-21 02:07:27,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:27,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 02:07:27,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:27,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-21 02:07:27,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:27,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-21 02:07:27,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:27,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-21 02:07:27,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:27,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-21 02:07:27,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:27,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-21 02:07:27,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:27,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-21 02:07:27,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:27,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-21 02:07:27,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:27,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-12-21 02:07:27,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:27,287 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-12-21 02:07:27,287 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 02:07:27,287 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1043027153] [2023-12-21 02:07:27,287 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1043027153] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 02:07:27,287 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 02:07:27,287 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2023-12-21 02:07:27,287 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1316243549] [2023-12-21 02:07:27,287 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 02:07:27,288 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-12-21 02:07:27,288 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 02:07:27,288 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-12-21 02:07:27,288 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=176, Unknown=0, NotChecked=0, Total=210 [2023-12-21 02:07:27,288 INFO L87 Difference]: Start difference. First operand 576 states and 733 transitions. Second operand has 15 states, 14 states have (on average 4.214285714285714) internal successors, (59), 15 states have internal predecessors, (59), 4 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 3 states have call predecessors, (20), 4 states have call successors, (20) [2023-12-21 02:07:27,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 02:07:27,916 INFO L93 Difference]: Finished difference Result 1213 states and 1550 transitions. [2023-12-21 02:07:27,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-12-21 02:07:27,917 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 4.214285714285714) internal successors, (59), 15 states have internal predecessors, (59), 4 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 3 states have call predecessors, (20), 4 states have call successors, (20) Word has length 156 [2023-12-21 02:07:27,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 02:07:27,919 INFO L225 Difference]: With dead ends: 1213 [2023-12-21 02:07:27,919 INFO L226 Difference]: Without dead ends: 638 [2023-12-21 02:07:27,920 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 88 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=176, Invalid=526, Unknown=0, NotChecked=0, Total=702 [2023-12-21 02:07:27,920 INFO L413 NwaCegarLoop]: 127 mSDtfsCounter, 503 mSDsluCounter, 965 mSDsCounter, 0 mSdLazyCounter, 539 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 504 SdHoareTripleChecker+Valid, 1092 SdHoareTripleChecker+Invalid, 567 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 539 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-21 02:07:27,921 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [504 Valid, 1092 Invalid, 567 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 539 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-21 02:07:27,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 638 states. [2023-12-21 02:07:28,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 638 to 584. [2023-12-21 02:07:28,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 584 states, 529 states have (on average 1.2495274102079394) internal successors, (661), 529 states have internal predecessors, (661), 40 states have call successors, (40), 14 states have call predecessors, (40), 14 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2023-12-21 02:07:28,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 584 states to 584 states and 741 transitions. [2023-12-21 02:07:28,003 INFO L78 Accepts]: Start accepts. Automaton has 584 states and 741 transitions. Word has length 156 [2023-12-21 02:07:28,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 02:07:28,003 INFO L495 AbstractCegarLoop]: Abstraction has 584 states and 741 transitions. [2023-12-21 02:07:28,003 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 4.214285714285714) internal successors, (59), 15 states have internal predecessors, (59), 4 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 3 states have call predecessors, (20), 4 states have call successors, (20) [2023-12-21 02:07:28,003 INFO L276 IsEmpty]: Start isEmpty. Operand 584 states and 741 transitions. [2023-12-21 02:07:28,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2023-12-21 02:07:28,004 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 02:07:28,004 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:07:28,004 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-12-21 02:07:28,004 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 02:07:28,005 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 02:07:28,005 INFO L85 PathProgramCache]: Analyzing trace with hash 207211356, now seen corresponding path program 1 times [2023-12-21 02:07:28,005 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 02:07:28,005 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1307209486] [2023-12-21 02:07:28,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:07:28,006 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 02:07:28,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:28,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 02:07:28,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:28,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 02:07:28,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:28,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 02:07:28,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:28,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 02:07:28,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:28,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-21 02:07:28,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:28,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 02:07:28,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:28,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-21 02:07:28,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:28,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 02:07:28,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:28,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 02:07:28,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:28,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 02:07:28,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:28,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-21 02:07:28,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:28,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 02:07:28,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:28,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-21 02:07:28,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:28,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-21 02:07:28,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:28,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-21 02:07:28,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:28,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-21 02:07:28,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:28,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-21 02:07:28,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:28,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-21 02:07:28,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:28,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-21 02:07:28,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:28,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-12-21 02:07:28,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:28,243 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-12-21 02:07:28,243 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 02:07:28,243 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1307209486] [2023-12-21 02:07:28,243 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1307209486] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 02:07:28,243 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 02:07:28,243 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 02:07:28,243 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2117439361] [2023-12-21 02:07:28,243 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 02:07:28,244 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-21 02:07:28,244 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 02:07:28,245 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-21 02:07:28,245 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-12-21 02:07:28,245 INFO L87 Difference]: Start difference. First operand 584 states and 741 transitions. Second operand has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 7 states have internal predecessors, (59), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-21 02:07:28,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 02:07:28,432 INFO L93 Difference]: Finished difference Result 1239 states and 1582 transitions. [2023-12-21 02:07:28,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-21 02:07:28,433 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 7 states have internal predecessors, (59), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 156 [2023-12-21 02:07:28,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 02:07:28,435 INFO L225 Difference]: With dead ends: 1239 [2023-12-21 02:07:28,435 INFO L226 Difference]: Without dead ends: 656 [2023-12-21 02:07:28,436 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2023-12-21 02:07:28,436 INFO L413 NwaCegarLoop]: 153 mSDtfsCounter, 231 mSDsluCounter, 332 mSDsCounter, 0 mSdLazyCounter, 166 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 231 SdHoareTripleChecker+Valid, 485 SdHoareTripleChecker+Invalid, 168 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 166 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 02:07:28,436 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [231 Valid, 485 Invalid, 168 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 166 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 02:07:28,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 656 states. [2023-12-21 02:07:28,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 656 to 584. [2023-12-21 02:07:28,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 584 states, 529 states have (on average 1.2457466918714555) internal successors, (659), 529 states have internal predecessors, (659), 40 states have call successors, (40), 14 states have call predecessors, (40), 14 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2023-12-21 02:07:28,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 584 states to 584 states and 739 transitions. [2023-12-21 02:07:28,497 INFO L78 Accepts]: Start accepts. Automaton has 584 states and 739 transitions. Word has length 156 [2023-12-21 02:07:28,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 02:07:28,497 INFO L495 AbstractCegarLoop]: Abstraction has 584 states and 739 transitions. [2023-12-21 02:07:28,497 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 7 states have internal predecessors, (59), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-21 02:07:28,497 INFO L276 IsEmpty]: Start isEmpty. Operand 584 states and 739 transitions. [2023-12-21 02:07:28,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2023-12-21 02:07:28,498 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 02:07:28,498 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:07:28,498 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-12-21 02:07:28,499 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 02:07:28,499 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 02:07:28,499 INFO L85 PathProgramCache]: Analyzing trace with hash 1529920860, now seen corresponding path program 1 times [2023-12-21 02:07:28,499 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 02:07:28,499 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1932057356] [2023-12-21 02:07:28,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:07:28,499 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 02:07:28,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:28,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 02:07:28,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:28,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 02:07:28,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:28,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 02:07:28,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:28,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 02:07:28,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:28,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-21 02:07:28,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:28,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 02:07:28,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:28,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-21 02:07:28,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:28,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 02:07:28,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:28,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 02:07:28,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:28,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 02:07:28,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:28,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-21 02:07:28,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:28,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 02:07:28,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:28,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-21 02:07:28,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:28,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-21 02:07:28,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:28,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-21 02:07:28,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:28,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-21 02:07:28,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:28,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-21 02:07:28,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:28,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-21 02:07:28,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:28,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-21 02:07:28,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:28,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-12-21 02:07:28,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:28,757 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-12-21 02:07:28,758 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 02:07:28,758 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1932057356] [2023-12-21 02:07:28,759 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1932057356] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 02:07:28,759 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 02:07:28,759 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 02:07:28,759 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1005568766] [2023-12-21 02:07:28,759 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 02:07:28,760 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-21 02:07:28,760 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 02:07:28,760 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-21 02:07:28,760 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-12-21 02:07:28,760 INFO L87 Difference]: Start difference. First operand 584 states and 739 transitions. Second operand has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 7 states have internal predecessors, (59), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-21 02:07:28,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 02:07:28,933 INFO L93 Difference]: Finished difference Result 1215 states and 1544 transitions. [2023-12-21 02:07:28,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-21 02:07:28,934 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 7 states have internal predecessors, (59), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 156 [2023-12-21 02:07:28,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 02:07:28,935 INFO L225 Difference]: With dead ends: 1215 [2023-12-21 02:07:28,935 INFO L226 Difference]: Without dead ends: 632 [2023-12-21 02:07:28,936 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2023-12-21 02:07:28,937 INFO L413 NwaCegarLoop]: 155 mSDtfsCounter, 263 mSDsluCounter, 337 mSDsCounter, 0 mSdLazyCounter, 161 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 263 SdHoareTripleChecker+Valid, 492 SdHoareTripleChecker+Invalid, 164 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 161 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 02:07:28,937 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [263 Valid, 492 Invalid, 164 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 161 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 02:07:28,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 632 states. [2023-12-21 02:07:28,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 632 to 580. [2023-12-21 02:07:28,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 580 states, 525 states have (on average 1.24) internal successors, (651), 525 states have internal predecessors, (651), 40 states have call successors, (40), 14 states have call predecessors, (40), 14 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2023-12-21 02:07:28,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 580 states to 580 states and 731 transitions. [2023-12-21 02:07:28,996 INFO L78 Accepts]: Start accepts. Automaton has 580 states and 731 transitions. Word has length 156 [2023-12-21 02:07:28,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 02:07:28,996 INFO L495 AbstractCegarLoop]: Abstraction has 580 states and 731 transitions. [2023-12-21 02:07:28,996 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 7 states have internal predecessors, (59), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-21 02:07:28,997 INFO L276 IsEmpty]: Start isEmpty. Operand 580 states and 731 transitions. [2023-12-21 02:07:28,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2023-12-21 02:07:28,997 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 02:07:28,997 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:07:28,997 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-12-21 02:07:28,998 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 02:07:28,998 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 02:07:28,998 INFO L85 PathProgramCache]: Analyzing trace with hash 1378456435, now seen corresponding path program 1 times [2023-12-21 02:07:28,998 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 02:07:28,998 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [910149915] [2023-12-21 02:07:28,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:07:28,998 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 02:07:29,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:29,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 02:07:29,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:29,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 02:07:29,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:29,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 02:07:29,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:29,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 02:07:29,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:29,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-21 02:07:29,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:29,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 02:07:29,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:29,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-21 02:07:29,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:29,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 02:07:29,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:29,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 02:07:29,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:29,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 02:07:29,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:29,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-21 02:07:29,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:29,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 02:07:29,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:29,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-21 02:07:29,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:29,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-21 02:07:29,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:29,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-21 02:07:29,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:29,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-21 02:07:29,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:29,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-21 02:07:29,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:29,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-21 02:07:29,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:29,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-21 02:07:29,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:29,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-12-21 02:07:29,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:29,255 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-12-21 02:07:29,255 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 02:07:29,255 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [910149915] [2023-12-21 02:07:29,255 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [910149915] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 02:07:29,256 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 02:07:29,256 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 02:07:29,256 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [524472632] [2023-12-21 02:07:29,256 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 02:07:29,256 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-21 02:07:29,256 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 02:07:29,256 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-21 02:07:29,257 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-12-21 02:07:29,257 INFO L87 Difference]: Start difference. First operand 580 states and 731 transitions. Second operand has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 7 states have internal predecessors, (59), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-21 02:07:29,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 02:07:29,463 INFO L93 Difference]: Finished difference Result 1374 states and 1735 transitions. [2023-12-21 02:07:29,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-21 02:07:29,464 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 7 states have internal predecessors, (59), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 156 [2023-12-21 02:07:29,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 02:07:29,466 INFO L225 Difference]: With dead ends: 1374 [2023-12-21 02:07:29,466 INFO L226 Difference]: Without dead ends: 795 [2023-12-21 02:07:29,467 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2023-12-21 02:07:29,467 INFO L413 NwaCegarLoop]: 157 mSDtfsCounter, 193 mSDsluCounter, 313 mSDsCounter, 0 mSdLazyCounter, 168 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 193 SdHoareTripleChecker+Valid, 470 SdHoareTripleChecker+Invalid, 169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 168 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 02:07:29,468 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [193 Valid, 470 Invalid, 169 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 168 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 02:07:29,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 795 states. [2023-12-21 02:07:29,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 795 to 761. [2023-12-21 02:07:29,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 761 states, 706 states have (on average 1.2436260623229463) internal successors, (878), 706 states have internal predecessors, (878), 40 states have call successors, (40), 14 states have call predecessors, (40), 14 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2023-12-21 02:07:29,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 761 states to 761 states and 958 transitions. [2023-12-21 02:07:29,540 INFO L78 Accepts]: Start accepts. Automaton has 761 states and 958 transitions. Word has length 156 [2023-12-21 02:07:29,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 02:07:29,540 INFO L495 AbstractCegarLoop]: Abstraction has 761 states and 958 transitions. [2023-12-21 02:07:29,540 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 7 states have internal predecessors, (59), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-21 02:07:29,540 INFO L276 IsEmpty]: Start isEmpty. Operand 761 states and 958 transitions. [2023-12-21 02:07:29,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2023-12-21 02:07:29,541 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 02:07:29,541 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:07:29,541 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-12-21 02:07:29,542 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 02:07:29,542 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 02:07:29,542 INFO L85 PathProgramCache]: Analyzing trace with hash 985429425, now seen corresponding path program 1 times [2023-12-21 02:07:29,542 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 02:07:29,542 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2029075145] [2023-12-21 02:07:29,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:07:29,543 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 02:07:29,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:30,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 02:07:30,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:30,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 02:07:30,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:30,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 02:07:30,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:30,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 02:07:30,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:30,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-21 02:07:30,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:30,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 02:07:30,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:30,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-21 02:07:30,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:30,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 02:07:30,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:30,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 02:07:30,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:30,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 02:07:30,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:30,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-21 02:07:30,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:30,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 02:07:30,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:30,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-21 02:07:30,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:30,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-21 02:07:30,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:30,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-21 02:07:30,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:30,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-21 02:07:30,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:30,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-21 02:07:30,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:30,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-21 02:07:30,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:30,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-21 02:07:30,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:30,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-12-21 02:07:30,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:30,422 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-12-21 02:07:30,422 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 02:07:30,422 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2029075145] [2023-12-21 02:07:30,422 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2029075145] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 02:07:30,422 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 02:07:30,422 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2023-12-21 02:07:30,422 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [681794071] [2023-12-21 02:07:30,422 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 02:07:30,422 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-12-21 02:07:30,423 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 02:07:30,423 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-12-21 02:07:30,423 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2023-12-21 02:07:30,423 INFO L87 Difference]: Start difference. First operand 761 states and 958 transitions. Second operand has 15 states, 14 states have (on average 4.214285714285714) internal successors, (59), 15 states have internal predecessors, (59), 4 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 3 states have call predecessors, (20), 4 states have call successors, (20) [2023-12-21 02:07:31,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 02:07:31,176 INFO L93 Difference]: Finished difference Result 1693 states and 2151 transitions. [2023-12-21 02:07:31,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-12-21 02:07:31,177 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 4.214285714285714) internal successors, (59), 15 states have internal predecessors, (59), 4 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 3 states have call predecessors, (20), 4 states have call successors, (20) Word has length 156 [2023-12-21 02:07:31,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 02:07:31,181 INFO L225 Difference]: With dead ends: 1693 [2023-12-21 02:07:31,181 INFO L226 Difference]: Without dead ends: 933 [2023-12-21 02:07:31,183 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 118 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=240, Invalid=752, Unknown=0, NotChecked=0, Total=992 [2023-12-21 02:07:31,183 INFO L413 NwaCegarLoop]: 152 mSDtfsCounter, 516 mSDsluCounter, 1199 mSDsCounter, 0 mSdLazyCounter, 594 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 516 SdHoareTripleChecker+Valid, 1351 SdHoareTripleChecker+Invalid, 621 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 594 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-21 02:07:31,183 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [516 Valid, 1351 Invalid, 621 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 594 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-21 02:07:31,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 933 states. [2023-12-21 02:07:31,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 933 to 823. [2023-12-21 02:07:31,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 823 states, 768 states have (on average 1.2526041666666667) internal successors, (962), 768 states have internal predecessors, (962), 40 states have call successors, (40), 14 states have call predecessors, (40), 14 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2023-12-21 02:07:31,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 823 states to 823 states and 1042 transitions. [2023-12-21 02:07:31,257 INFO L78 Accepts]: Start accepts. Automaton has 823 states and 1042 transitions. Word has length 156 [2023-12-21 02:07:31,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 02:07:31,257 INFO L495 AbstractCegarLoop]: Abstraction has 823 states and 1042 transitions. [2023-12-21 02:07:31,258 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 4.214285714285714) internal successors, (59), 15 states have internal predecessors, (59), 4 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 3 states have call predecessors, (20), 4 states have call successors, (20) [2023-12-21 02:07:31,258 INFO L276 IsEmpty]: Start isEmpty. Operand 823 states and 1042 transitions. [2023-12-21 02:07:31,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2023-12-21 02:07:31,259 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 02:07:31,259 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:07:31,259 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2023-12-21 02:07:31,259 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 02:07:31,259 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 02:07:31,259 INFO L85 PathProgramCache]: Analyzing trace with hash 1316416821, now seen corresponding path program 1 times [2023-12-21 02:07:31,259 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 02:07:31,260 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1074326771] [2023-12-21 02:07:31,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:07:31,260 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 02:07:31,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:31,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 02:07:31,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:31,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 02:07:31,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:31,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 02:07:31,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:31,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 02:07:31,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:31,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-21 02:07:31,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:31,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 02:07:31,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:31,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-21 02:07:31,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:31,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 02:07:31,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:31,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 02:07:31,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:31,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 02:07:31,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:31,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-21 02:07:31,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:31,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 02:07:31,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:31,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-21 02:07:31,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:31,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-21 02:07:31,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:31,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-21 02:07:31,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:31,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-21 02:07:31,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:31,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-21 02:07:31,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:31,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-21 02:07:31,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:31,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-21 02:07:31,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:31,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-12-21 02:07:31,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:31,406 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-12-21 02:07:31,407 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 02:07:31,407 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1074326771] [2023-12-21 02:07:31,407 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1074326771] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 02:07:31,407 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 02:07:31,407 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-21 02:07:31,407 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [564499780] [2023-12-21 02:07:31,407 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 02:07:31,407 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 02:07:31,407 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 02:07:31,408 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 02:07:31,408 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-21 02:07:31,408 INFO L87 Difference]: Start difference. First operand 823 states and 1042 transitions. Second operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-21 02:07:31,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 02:07:31,510 INFO L93 Difference]: Finished difference Result 1597 states and 2034 transitions. [2023-12-21 02:07:31,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-21 02:07:31,511 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 156 [2023-12-21 02:07:31,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 02:07:31,514 INFO L225 Difference]: With dead ends: 1597 [2023-12-21 02:07:31,514 INFO L226 Difference]: Without dead ends: 775 [2023-12-21 02:07:31,515 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 42 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 02:07:31,516 INFO L413 NwaCegarLoop]: 188 mSDtfsCounter, 53 mSDsluCounter, 486 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 674 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 02:07:31,516 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 674 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 02:07:31,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 775 states. [2023-12-21 02:07:31,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 775 to 696. [2023-12-21 02:07:31,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 696 states, 641 states have (on average 1.251170046801872) internal successors, (802), 641 states have internal predecessors, (802), 40 states have call successors, (40), 14 states have call predecessors, (40), 14 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2023-12-21 02:07:31,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 696 states to 696 states and 882 transitions. [2023-12-21 02:07:31,574 INFO L78 Accepts]: Start accepts. Automaton has 696 states and 882 transitions. Word has length 156 [2023-12-21 02:07:31,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 02:07:31,575 INFO L495 AbstractCegarLoop]: Abstraction has 696 states and 882 transitions. [2023-12-21 02:07:31,575 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-21 02:07:31,575 INFO L276 IsEmpty]: Start isEmpty. Operand 696 states and 882 transitions. [2023-12-21 02:07:31,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2023-12-21 02:07:31,576 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 02:07:31,576 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:07:31,576 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2023-12-21 02:07:31,576 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 02:07:31,576 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 02:07:31,576 INFO L85 PathProgramCache]: Analyzing trace with hash -610264138, now seen corresponding path program 1 times [2023-12-21 02:07:31,577 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 02:07:31,577 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2122694912] [2023-12-21 02:07:31,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:07:31,577 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 02:07:31,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:31,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 02:07:31,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:31,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 02:07:31,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:31,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 02:07:31,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:31,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 02:07:31,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:31,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-21 02:07:31,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:31,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 02:07:31,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:31,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-21 02:07:31,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:31,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 02:07:31,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:31,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 02:07:31,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:31,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 02:07:31,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:31,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-21 02:07:31,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:31,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 02:07:31,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:31,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-21 02:07:31,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:31,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-21 02:07:31,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:31,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-21 02:07:31,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:31,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-21 02:07:31,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:31,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-21 02:07:31,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:31,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-21 02:07:31,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:31,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-21 02:07:31,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:31,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-12-21 02:07:31,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:31,695 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-12-21 02:07:31,695 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 02:07:31,695 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2122694912] [2023-12-21 02:07:31,695 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2122694912] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 02:07:31,695 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 02:07:31,695 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-21 02:07:31,695 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1716761720] [2023-12-21 02:07:31,696 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 02:07:31,696 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-21 02:07:31,696 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 02:07:31,696 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-21 02:07:31,696 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-21 02:07:31,696 INFO L87 Difference]: Start difference. First operand 696 states and 882 transitions. Second operand has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-21 02:07:31,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 02:07:31,897 INFO L93 Difference]: Finished difference Result 1895 states and 2394 transitions. [2023-12-21 02:07:31,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-21 02:07:31,897 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 157 [2023-12-21 02:07:31,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 02:07:31,901 INFO L225 Difference]: With dead ends: 1895 [2023-12-21 02:07:31,901 INFO L226 Difference]: Without dead ends: 1200 [2023-12-21 02:07:31,902 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 42 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 02:07:31,902 INFO L413 NwaCegarLoop]: 125 mSDtfsCounter, 97 mSDsluCounter, 256 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 381 SdHoareTripleChecker+Invalid, 118 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 02:07:31,903 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [97 Valid, 381 Invalid, 118 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [66 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 02:07:31,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1200 states. [2023-12-21 02:07:31,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1200 to 1000. [2023-12-21 02:07:31,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1000 states, 918 states have (on average 1.261437908496732) internal successors, (1158), 918 states have internal predecessors, (1158), 60 states have call successors, (60), 21 states have call predecessors, (60), 21 states have return successors, (60), 60 states have call predecessors, (60), 60 states have call successors, (60) [2023-12-21 02:07:31,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1000 states to 1000 states and 1278 transitions. [2023-12-21 02:07:32,000 INFO L78 Accepts]: Start accepts. Automaton has 1000 states and 1278 transitions. Word has length 157 [2023-12-21 02:07:32,000 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 02:07:32,000 INFO L495 AbstractCegarLoop]: Abstraction has 1000 states and 1278 transitions. [2023-12-21 02:07:32,000 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-21 02:07:32,000 INFO L276 IsEmpty]: Start isEmpty. Operand 1000 states and 1278 transitions. [2023-12-21 02:07:32,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2023-12-21 02:07:32,001 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 02:07:32,001 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:07:32,001 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2023-12-21 02:07:32,002 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 02:07:32,002 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 02:07:32,002 INFO L85 PathProgramCache]: Analyzing trace with hash -1197070152, now seen corresponding path program 1 times [2023-12-21 02:07:32,002 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 02:07:32,002 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [456969179] [2023-12-21 02:07:32,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:07:32,003 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 02:07:32,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:33,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 02:07:33,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:33,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 02:07:33,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:33,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 02:07:33,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:33,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 02:07:33,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:33,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-21 02:07:33,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:33,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 02:07:33,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:33,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-21 02:07:33,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:33,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 02:07:33,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:33,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 02:07:33,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:33,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 02:07:33,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:33,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-21 02:07:33,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:33,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 02:07:33,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:33,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-21 02:07:33,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:33,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-21 02:07:33,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:33,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-21 02:07:33,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:33,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-21 02:07:33,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:33,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-21 02:07:33,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:33,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-21 02:07:33,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:33,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-21 02:07:33,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:33,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-12-21 02:07:33,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:33,525 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-12-21 02:07:33,525 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 02:07:33,525 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [456969179] [2023-12-21 02:07:33,525 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [456969179] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 02:07:33,525 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 02:07:33,525 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2023-12-21 02:07:33,525 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1872091671] [2023-12-21 02:07:33,525 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 02:07:33,526 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-12-21 02:07:33,526 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 02:07:33,526 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-12-21 02:07:33,526 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2023-12-21 02:07:33,526 INFO L87 Difference]: Start difference. First operand 1000 states and 1278 transitions. Second operand has 13 states, 11 states have (on average 5.454545454545454) internal successors, (60), 12 states have internal predecessors, (60), 4 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 3 states have call predecessors, (20), 4 states have call successors, (20) [2023-12-21 02:07:40,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 02:07:40,295 INFO L93 Difference]: Finished difference Result 2336 states and 2951 transitions. [2023-12-21 02:07:40,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-12-21 02:07:40,296 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 11 states have (on average 5.454545454545454) internal successors, (60), 12 states have internal predecessors, (60), 4 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 3 states have call predecessors, (20), 4 states have call successors, (20) Word has length 157 [2023-12-21 02:07:40,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 02:07:40,304 INFO L225 Difference]: With dead ends: 2336 [2023-12-21 02:07:40,304 INFO L226 Difference]: Without dead ends: 1633 [2023-12-21 02:07:40,306 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 44 SyntacticMatches, 1 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 5.8s TimeCoverageRelationStatistics Valid=158, Invalid=492, Unknown=0, NotChecked=0, Total=650 [2023-12-21 02:07:40,309 INFO L413 NwaCegarLoop]: 335 mSDtfsCounter, 363 mSDsluCounter, 2183 mSDsCounter, 0 mSdLazyCounter, 772 mSolverCounterSat, 71 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 363 SdHoareTripleChecker+Valid, 2518 SdHoareTripleChecker+Invalid, 843 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 71 IncrementalHoareTripleChecker+Valid, 772 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-12-21 02:07:40,309 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [363 Valid, 2518 Invalid, 843 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [71 Valid, 772 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-12-21 02:07:40,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1633 states. [2023-12-21 02:07:40,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1633 to 1180. [2023-12-21 02:07:40,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1180 states, 1098 states have (on average 1.2622950819672132) internal successors, (1386), 1098 states have internal predecessors, (1386), 60 states have call successors, (60), 21 states have call predecessors, (60), 21 states have return successors, (60), 60 states have call predecessors, (60), 60 states have call successors, (60) [2023-12-21 02:07:40,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1180 states to 1180 states and 1506 transitions. [2023-12-21 02:07:40,408 INFO L78 Accepts]: Start accepts. Automaton has 1180 states and 1506 transitions. Word has length 157 [2023-12-21 02:07:40,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 02:07:40,408 INFO L495 AbstractCegarLoop]: Abstraction has 1180 states and 1506 transitions. [2023-12-21 02:07:40,408 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 11 states have (on average 5.454545454545454) internal successors, (60), 12 states have internal predecessors, (60), 4 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 3 states have call predecessors, (20), 4 states have call successors, (20) [2023-12-21 02:07:40,408 INFO L276 IsEmpty]: Start isEmpty. Operand 1180 states and 1506 transitions. [2023-12-21 02:07:40,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2023-12-21 02:07:40,410 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 02:07:40,410 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:07:40,410 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2023-12-21 02:07:40,410 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 02:07:40,410 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 02:07:40,410 INFO L85 PathProgramCache]: Analyzing trace with hash -698471256, now seen corresponding path program 1 times [2023-12-21 02:07:40,410 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 02:07:40,410 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1847817802] [2023-12-21 02:07:40,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:07:40,410 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 02:07:40,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:41,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 02:07:41,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:41,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 02:07:41,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:41,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 02:07:41,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:41,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 02:07:41,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:41,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-21 02:07:41,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:41,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 02:07:41,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:41,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-21 02:07:41,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:41,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 02:07:41,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:41,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 02:07:41,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:41,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 02:07:41,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:41,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-21 02:07:41,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:41,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 02:07:41,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:41,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-21 02:07:41,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:41,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-21 02:07:41,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:41,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-21 02:07:41,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:41,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-21 02:07:41,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:41,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-21 02:07:41,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:41,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-21 02:07:41,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:41,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-21 02:07:41,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:41,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-12-21 02:07:41,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:41,072 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-12-21 02:07:41,072 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 02:07:41,072 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1847817802] [2023-12-21 02:07:41,072 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1847817802] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 02:07:41,072 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 02:07:41,072 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2023-12-21 02:07:41,072 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2003684033] [2023-12-21 02:07:41,073 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 02:07:41,073 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-12-21 02:07:41,073 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 02:07:41,073 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-12-21 02:07:41,074 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=232, Unknown=0, NotChecked=0, Total=272 [2023-12-21 02:07:41,074 INFO L87 Difference]: Start difference. First operand 1180 states and 1506 transitions. Second operand has 17 states, 17 states have (on average 3.588235294117647) internal successors, (61), 17 states have internal predecessors, (61), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2023-12-21 02:07:41,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 02:07:41,933 INFO L93 Difference]: Finished difference Result 3132 states and 3969 transitions. [2023-12-21 02:07:41,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-12-21 02:07:41,933 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 3.588235294117647) internal successors, (61), 17 states have internal predecessors, (61), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 158 [2023-12-21 02:07:41,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 02:07:41,938 INFO L225 Difference]: With dead ends: 3132 [2023-12-21 02:07:41,938 INFO L226 Difference]: Without dead ends: 2257 [2023-12-21 02:07:41,940 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 129 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=227, Invalid=765, Unknown=0, NotChecked=0, Total=992 [2023-12-21 02:07:41,940 INFO L413 NwaCegarLoop]: 132 mSDtfsCounter, 590 mSDsluCounter, 1320 mSDsCounter, 0 mSdLazyCounter, 979 mSolverCounterSat, 111 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 590 SdHoareTripleChecker+Valid, 1452 SdHoareTripleChecker+Invalid, 1090 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 111 IncrementalHoareTripleChecker+Valid, 979 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-21 02:07:41,940 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [590 Valid, 1452 Invalid, 1090 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [111 Valid, 979 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-21 02:07:41,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2257 states. [2023-12-21 02:07:42,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2257 to 1452. [2023-12-21 02:07:42,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1452 states, 1316 states have (on average 1.243161094224924) internal successors, (1636), 1316 states have internal predecessors, (1636), 100 states have call successors, (100), 35 states have call predecessors, (100), 35 states have return successors, (100), 100 states have call predecessors, (100), 100 states have call successors, (100) [2023-12-21 02:07:42,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1452 states to 1452 states and 1836 transitions. [2023-12-21 02:07:42,096 INFO L78 Accepts]: Start accepts. Automaton has 1452 states and 1836 transitions. Word has length 158 [2023-12-21 02:07:42,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 02:07:42,097 INFO L495 AbstractCegarLoop]: Abstraction has 1452 states and 1836 transitions. [2023-12-21 02:07:42,097 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 3.588235294117647) internal successors, (61), 17 states have internal predecessors, (61), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2023-12-21 02:07:42,097 INFO L276 IsEmpty]: Start isEmpty. Operand 1452 states and 1836 transitions. [2023-12-21 02:07:42,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2023-12-21 02:07:42,098 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 02:07:42,098 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:07:42,098 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2023-12-21 02:07:42,098 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 02:07:42,099 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 02:07:42,099 INFO L85 PathProgramCache]: Analyzing trace with hash 1076536106, now seen corresponding path program 1 times [2023-12-21 02:07:42,099 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 02:07:42,099 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1271526295] [2023-12-21 02:07:42,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:07:42,099 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 02:07:42,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:42,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 02:07:42,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:42,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 02:07:42,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:42,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 02:07:42,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:42,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 02:07:42,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:42,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-21 02:07:42,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:42,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 02:07:42,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:42,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-21 02:07:42,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:42,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 02:07:42,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:42,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 02:07:42,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:42,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 02:07:42,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:42,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-21 02:07:42,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:42,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 02:07:42,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:42,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-21 02:07:42,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:42,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-21 02:07:42,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:42,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-21 02:07:42,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:42,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-21 02:07:42,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:42,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-21 02:07:42,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:42,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-21 02:07:42,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:42,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-21 02:07:42,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:42,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-12-21 02:07:42,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:42,469 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-12-21 02:07:42,469 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 02:07:42,469 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1271526295] [2023-12-21 02:07:42,469 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1271526295] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 02:07:42,469 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 02:07:42,470 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2023-12-21 02:07:42,470 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1945662286] [2023-12-21 02:07:42,470 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 02:07:42,470 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-12-21 02:07:42,470 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 02:07:42,470 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-12-21 02:07:42,470 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=145, Unknown=0, NotChecked=0, Total=182 [2023-12-21 02:07:42,471 INFO L87 Difference]: Start difference. First operand 1452 states and 1836 transitions. Second operand has 14 states, 14 states have (on average 4.357142857142857) internal successors, (61), 14 states have internal predecessors, (61), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2023-12-21 02:07:43,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 02:07:43,214 INFO L93 Difference]: Finished difference Result 2839 states and 3561 transitions. [2023-12-21 02:07:43,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-12-21 02:07:43,215 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 4.357142857142857) internal successors, (61), 14 states have internal predecessors, (61), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 158 [2023-12-21 02:07:43,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 02:07:43,220 INFO L225 Difference]: With dead ends: 2839 [2023-12-21 02:07:43,220 INFO L226 Difference]: Without dead ends: 1696 [2023-12-21 02:07:43,222 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 130 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=160, Invalid=652, Unknown=0, NotChecked=0, Total=812 [2023-12-21 02:07:43,222 INFO L413 NwaCegarLoop]: 114 mSDtfsCounter, 368 mSDsluCounter, 668 mSDsCounter, 0 mSdLazyCounter, 747 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 368 SdHoareTripleChecker+Valid, 782 SdHoareTripleChecker+Invalid, 775 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 747 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-21 02:07:43,222 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [368 Valid, 782 Invalid, 775 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 747 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-21 02:07:43,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1696 states. [2023-12-21 02:07:43,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1696 to 1512. [2023-12-21 02:07:43,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1512 states, 1376 states have (on average 1.2318313953488371) internal successors, (1695), 1376 states have internal predecessors, (1695), 100 states have call successors, (100), 35 states have call predecessors, (100), 35 states have return successors, (100), 100 states have call predecessors, (100), 100 states have call successors, (100) [2023-12-21 02:07:43,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1512 states to 1512 states and 1895 transitions. [2023-12-21 02:07:43,410 INFO L78 Accepts]: Start accepts. Automaton has 1512 states and 1895 transitions. Word has length 158 [2023-12-21 02:07:43,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 02:07:43,410 INFO L495 AbstractCegarLoop]: Abstraction has 1512 states and 1895 transitions. [2023-12-21 02:07:43,411 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 4.357142857142857) internal successors, (61), 14 states have internal predecessors, (61), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2023-12-21 02:07:43,411 INFO L276 IsEmpty]: Start isEmpty. Operand 1512 states and 1895 transitions. [2023-12-21 02:07:43,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2023-12-21 02:07:43,414 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 02:07:43,414 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:07:43,414 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2023-12-21 02:07:43,415 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 02:07:43,415 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 02:07:43,415 INFO L85 PathProgramCache]: Analyzing trace with hash -557922646, now seen corresponding path program 1 times [2023-12-21 02:07:43,415 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 02:07:43,415 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [212421155] [2023-12-21 02:07:43,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:07:43,415 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 02:07:43,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:43,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 02:07:43,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:43,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 02:07:43,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:43,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 02:07:43,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:43,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 02:07:43,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:43,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-21 02:07:43,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:43,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 02:07:43,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:43,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-21 02:07:43,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:43,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 02:07:43,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:43,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 02:07:43,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:43,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 02:07:43,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:43,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-21 02:07:43,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:43,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 02:07:43,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:43,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-21 02:07:43,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:43,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-21 02:07:43,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:43,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-21 02:07:43,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:43,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-21 02:07:43,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:43,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-21 02:07:43,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:43,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-21 02:07:43,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:43,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-21 02:07:43,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:43,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-12-21 02:07:43,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:43,770 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-12-21 02:07:43,770 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 02:07:43,770 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [212421155] [2023-12-21 02:07:43,770 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [212421155] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 02:07:43,770 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 02:07:43,770 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2023-12-21 02:07:43,771 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1609716835] [2023-12-21 02:07:43,771 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 02:07:43,771 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-12-21 02:07:43,771 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 02:07:43,771 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-12-21 02:07:43,771 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=145, Unknown=0, NotChecked=0, Total=182 [2023-12-21 02:07:43,772 INFO L87 Difference]: Start difference. First operand 1512 states and 1895 transitions. Second operand has 14 states, 14 states have (on average 4.357142857142857) internal successors, (61), 14 states have internal predecessors, (61), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2023-12-21 02:07:44,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 02:07:44,479 INFO L93 Difference]: Finished difference Result 2673 states and 3340 transitions. [2023-12-21 02:07:44,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-12-21 02:07:44,480 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 4.357142857142857) internal successors, (61), 14 states have internal predecessors, (61), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 158 [2023-12-21 02:07:44,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 02:07:44,484 INFO L225 Difference]: With dead ends: 2673 [2023-12-21 02:07:44,484 INFO L226 Difference]: Without dead ends: 1732 [2023-12-21 02:07:44,485 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 124 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=161, Invalid=651, Unknown=0, NotChecked=0, Total=812 [2023-12-21 02:07:44,485 INFO L413 NwaCegarLoop]: 165 mSDtfsCounter, 328 mSDsluCounter, 834 mSDsCounter, 0 mSdLazyCounter, 848 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 328 SdHoareTripleChecker+Valid, 999 SdHoareTripleChecker+Invalid, 867 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 848 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-21 02:07:44,485 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [328 Valid, 999 Invalid, 867 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 848 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-21 02:07:44,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1732 states. [2023-12-21 02:07:44,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1732 to 1548. [2023-12-21 02:07:44,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1548 states, 1412 states have (on average 1.2259206798866855) internal successors, (1731), 1412 states have internal predecessors, (1731), 100 states have call successors, (100), 35 states have call predecessors, (100), 35 states have return successors, (100), 100 states have call predecessors, (100), 100 states have call successors, (100) [2023-12-21 02:07:44,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1548 states to 1548 states and 1931 transitions. [2023-12-21 02:07:44,662 INFO L78 Accepts]: Start accepts. Automaton has 1548 states and 1931 transitions. Word has length 158 [2023-12-21 02:07:44,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 02:07:44,662 INFO L495 AbstractCegarLoop]: Abstraction has 1548 states and 1931 transitions. [2023-12-21 02:07:44,663 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 4.357142857142857) internal successors, (61), 14 states have internal predecessors, (61), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2023-12-21 02:07:44,663 INFO L276 IsEmpty]: Start isEmpty. Operand 1548 states and 1931 transitions. [2023-12-21 02:07:44,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2023-12-21 02:07:44,664 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 02:07:44,664 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:07:44,664 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2023-12-21 02:07:44,664 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 02:07:44,664 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 02:07:44,665 INFO L85 PathProgramCache]: Analyzing trace with hash 1217084716, now seen corresponding path program 1 times [2023-12-21 02:07:44,665 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 02:07:44,665 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1185211339] [2023-12-21 02:07:44,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:07:44,665 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 02:07:44,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:45,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 02:07:45,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:45,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 02:07:45,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:45,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 02:07:45,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:45,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 02:07:45,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:45,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-21 02:07:45,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:45,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 02:07:45,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:45,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-21 02:07:45,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:45,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 02:07:45,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:45,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 02:07:45,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:45,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 02:07:45,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:45,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-21 02:07:45,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:45,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 02:07:45,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:45,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-21 02:07:45,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:45,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-21 02:07:45,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:45,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-21 02:07:45,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:45,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-21 02:07:45,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:45,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-21 02:07:45,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:45,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-21 02:07:45,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:45,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-21 02:07:45,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:45,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-12-21 02:07:45,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:45,225 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-12-21 02:07:45,225 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 02:07:45,225 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1185211339] [2023-12-21 02:07:45,225 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1185211339] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 02:07:45,225 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 02:07:45,225 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-21 02:07:45,225 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1449816201] [2023-12-21 02:07:45,226 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 02:07:45,226 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-21 02:07:45,226 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 02:07:45,227 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-21 02:07:45,227 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2023-12-21 02:07:45,227 INFO L87 Difference]: Start difference. First operand 1548 states and 1931 transitions. Second operand has 10 states, 10 states have (on average 6.1) internal successors, (61), 10 states have internal predecessors, (61), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-21 02:07:46,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 02:07:46,011 INFO L93 Difference]: Finished difference Result 3021 states and 3739 transitions. [2023-12-21 02:07:46,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-21 02:07:46,011 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 6.1) internal successors, (61), 10 states have internal predecessors, (61), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 158 [2023-12-21 02:07:46,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 02:07:46,016 INFO L225 Difference]: With dead ends: 3021 [2023-12-21 02:07:46,016 INFO L226 Difference]: Without dead ends: 2044 [2023-12-21 02:07:46,018 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=90, Invalid=252, Unknown=0, NotChecked=0, Total=342 [2023-12-21 02:07:46,018 INFO L413 NwaCegarLoop]: 192 mSDtfsCounter, 192 mSDsluCounter, 967 mSDsCounter, 0 mSdLazyCounter, 564 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 192 SdHoareTripleChecker+Valid, 1159 SdHoareTripleChecker+Invalid, 582 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 564 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-21 02:07:46,018 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [192 Valid, 1159 Invalid, 582 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 564 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-21 02:07:46,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2044 states. [2023-12-21 02:07:46,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2044 to 1884. [2023-12-21 02:07:46,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1884 states, 1748 states have (on average 1.2139588100686498) internal successors, (2122), 1748 states have internal predecessors, (2122), 100 states have call successors, (100), 35 states have call predecessors, (100), 35 states have return successors, (100), 100 states have call predecessors, (100), 100 states have call successors, (100) [2023-12-21 02:07:46,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1884 states to 1884 states and 2322 transitions. [2023-12-21 02:07:46,205 INFO L78 Accepts]: Start accepts. Automaton has 1884 states and 2322 transitions. Word has length 158 [2023-12-21 02:07:46,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 02:07:46,205 INFO L495 AbstractCegarLoop]: Abstraction has 1884 states and 2322 transitions. [2023-12-21 02:07:46,205 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.1) internal successors, (61), 10 states have internal predecessors, (61), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-21 02:07:46,205 INFO L276 IsEmpty]: Start isEmpty. Operand 1884 states and 2322 transitions. [2023-12-21 02:07:46,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2023-12-21 02:07:46,207 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 02:07:46,207 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:07:46,207 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2023-12-21 02:07:46,207 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 02:07:46,207 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 02:07:46,207 INFO L85 PathProgramCache]: Analyzing trace with hash 1012558462, now seen corresponding path program 1 times [2023-12-21 02:07:46,208 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 02:07:46,208 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1159908793] [2023-12-21 02:07:46,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:07:46,208 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 02:07:46,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:46,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 02:07:46,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:46,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 02:07:46,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:46,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 02:07:46,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:46,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 02:07:46,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:46,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-21 02:07:46,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:46,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 02:07:46,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:46,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-21 02:07:46,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:46,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 02:07:46,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:46,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 02:07:46,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:46,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 02:07:46,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:46,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-21 02:07:46,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:46,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 02:07:46,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:46,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-21 02:07:46,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:46,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-21 02:07:46,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:46,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-21 02:07:46,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:46,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-21 02:07:46,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:46,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-21 02:07:46,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:46,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-21 02:07:46,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:46,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-21 02:07:46,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:46,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-12-21 02:07:46,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:46,528 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-12-21 02:07:46,528 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 02:07:46,528 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1159908793] [2023-12-21 02:07:46,528 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1159908793] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 02:07:46,528 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 02:07:46,528 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-21 02:07:46,528 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [583324563] [2023-12-21 02:07:46,529 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 02:07:46,529 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-21 02:07:46,529 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 02:07:46,529 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-21 02:07:46,529 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2023-12-21 02:07:46,530 INFO L87 Difference]: Start difference. First operand 1884 states and 2322 transitions. Second operand has 10 states, 10 states have (on average 6.1) internal successors, (61), 10 states have internal predecessors, (61), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2023-12-21 02:07:46,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 02:07:46,999 INFO L93 Difference]: Finished difference Result 3675 states and 4538 transitions. [2023-12-21 02:07:47,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-21 02:07:47,000 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 6.1) internal successors, (61), 10 states have internal predecessors, (61), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 158 [2023-12-21 02:07:47,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 02:07:47,006 INFO L225 Difference]: With dead ends: 3675 [2023-12-21 02:07:47,006 INFO L226 Difference]: Without dead ends: 2426 [2023-12-21 02:07:47,008 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2023-12-21 02:07:47,009 INFO L413 NwaCegarLoop]: 111 mSDtfsCounter, 564 mSDsluCounter, 336 mSDsCounter, 0 mSdLazyCounter, 341 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 564 SdHoareTripleChecker+Valid, 447 SdHoareTripleChecker+Invalid, 349 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 341 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-21 02:07:47,009 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [564 Valid, 447 Invalid, 349 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 341 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-21 02:07:47,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2426 states. [2023-12-21 02:07:47,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2426 to 2043. [2023-12-21 02:07:47,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2043 states, 1907 states have (on average 1.2197168327215522) internal successors, (2326), 1907 states have internal predecessors, (2326), 100 states have call successors, (100), 35 states have call predecessors, (100), 35 states have return successors, (100), 100 states have call predecessors, (100), 100 states have call successors, (100) [2023-12-21 02:07:47,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2043 states to 2043 states and 2526 transitions. [2023-12-21 02:07:47,186 INFO L78 Accepts]: Start accepts. Automaton has 2043 states and 2526 transitions. Word has length 158 [2023-12-21 02:07:47,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 02:07:47,186 INFO L495 AbstractCegarLoop]: Abstraction has 2043 states and 2526 transitions. [2023-12-21 02:07:47,187 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.1) internal successors, (61), 10 states have internal predecessors, (61), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2023-12-21 02:07:47,187 INFO L276 IsEmpty]: Start isEmpty. Operand 2043 states and 2526 transitions. [2023-12-21 02:07:47,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2023-12-21 02:07:47,188 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 02:07:47,188 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:07:47,188 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2023-12-21 02:07:47,188 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 02:07:47,189 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 02:07:47,189 INFO L85 PathProgramCache]: Analyzing trace with hash -1054237908, now seen corresponding path program 1 times [2023-12-21 02:07:47,189 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 02:07:47,189 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1556145698] [2023-12-21 02:07:47,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:07:47,189 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 02:07:47,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:47,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 02:07:47,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:47,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 02:07:47,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:47,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 02:07:47,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:47,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 02:07:47,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:47,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-21 02:07:47,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:47,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 02:07:47,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:47,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-21 02:07:47,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:47,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 02:07:47,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:47,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 02:07:47,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:47,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 02:07:47,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:47,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-21 02:07:47,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:47,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 02:07:47,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:47,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-21 02:07:47,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:47,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-21 02:07:47,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:47,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-21 02:07:47,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:47,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-21 02:07:47,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:47,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-21 02:07:47,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:47,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-21 02:07:47,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:47,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-21 02:07:47,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:47,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-12-21 02:07:47,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:47,394 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-12-21 02:07:47,394 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 02:07:47,394 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1556145698] [2023-12-21 02:07:47,394 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1556145698] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 02:07:47,394 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 02:07:47,394 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-21 02:07:47,394 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [161008083] [2023-12-21 02:07:47,394 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 02:07:47,394 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-21 02:07:47,395 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 02:07:47,395 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-21 02:07:47,395 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-21 02:07:47,395 INFO L87 Difference]: Start difference. First operand 2043 states and 2526 transitions. Second operand has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 6 states have internal predecessors, (61), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-21 02:07:47,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 02:07:47,607 INFO L93 Difference]: Finished difference Result 3447 states and 4262 transitions. [2023-12-21 02:07:47,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-21 02:07:47,608 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 6 states have internal predecessors, (61), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 158 [2023-12-21 02:07:47,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 02:07:47,613 INFO L225 Difference]: With dead ends: 3447 [2023-12-21 02:07:47,613 INFO L226 Difference]: Without dead ends: 2073 [2023-12-21 02:07:47,614 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2023-12-21 02:07:47,615 INFO L413 NwaCegarLoop]: 167 mSDtfsCounter, 140 mSDsluCounter, 324 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 491 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 02:07:47,615 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [140 Valid, 491 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 02:07:47,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2073 states. [2023-12-21 02:07:47,790 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2073 to 2043. [2023-12-21 02:07:47,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2043 states, 1907 states have (on average 1.1945464079706345) internal successors, (2278), 1907 states have internal predecessors, (2278), 100 states have call successors, (100), 35 states have call predecessors, (100), 35 states have return successors, (100), 100 states have call predecessors, (100), 100 states have call successors, (100) [2023-12-21 02:07:47,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2043 states to 2043 states and 2478 transitions. [2023-12-21 02:07:47,794 INFO L78 Accepts]: Start accepts. Automaton has 2043 states and 2478 transitions. Word has length 158 [2023-12-21 02:07:47,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 02:07:47,794 INFO L495 AbstractCegarLoop]: Abstraction has 2043 states and 2478 transitions. [2023-12-21 02:07:47,794 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 6 states have internal predecessors, (61), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-21 02:07:47,795 INFO L276 IsEmpty]: Start isEmpty. Operand 2043 states and 2478 transitions. [2023-12-21 02:07:47,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2023-12-21 02:07:47,796 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 02:07:47,796 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:07:47,796 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2023-12-21 02:07:47,797 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 02:07:47,797 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 02:07:47,797 INFO L85 PathProgramCache]: Analyzing trace with hash -609181995, now seen corresponding path program 1 times [2023-12-21 02:07:47,797 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 02:07:47,797 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [903908863] [2023-12-21 02:07:47,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:07:47,797 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 02:07:47,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:48,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 02:07:48,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:48,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 02:07:48,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:48,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 02:07:48,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:48,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 02:07:48,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:48,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-21 02:07:48,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:48,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 02:07:48,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:48,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-21 02:07:48,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:48,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 02:07:48,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:48,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 02:07:48,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:48,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 02:07:48,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:48,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-21 02:07:48,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:48,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 02:07:48,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:48,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-21 02:07:48,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:48,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-21 02:07:48,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:48,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-21 02:07:48,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:48,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-21 02:07:48,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:48,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-21 02:07:48,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:48,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-21 02:07:48,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:48,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-21 02:07:48,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:48,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-12-21 02:07:48,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:48,218 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-12-21 02:07:48,218 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 02:07:48,218 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [903908863] [2023-12-21 02:07:48,218 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [903908863] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 02:07:48,218 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 02:07:48,218 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2023-12-21 02:07:48,218 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1004105194] [2023-12-21 02:07:48,218 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 02:07:48,219 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-12-21 02:07:48,219 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 02:07:48,219 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-12-21 02:07:48,219 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2023-12-21 02:07:48,220 INFO L87 Difference]: Start difference. First operand 2043 states and 2478 transitions. Second operand has 13 states, 13 states have (on average 4.6923076923076925) internal successors, (61), 13 states have internal predecessors, (61), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-21 02:07:49,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 02:07:49,099 INFO L93 Difference]: Finished difference Result 4210 states and 5067 transitions. [2023-12-21 02:07:49,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2023-12-21 02:07:49,100 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 4.6923076923076925) internal successors, (61), 13 states have internal predecessors, (61), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 158 [2023-12-21 02:07:49,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 02:07:49,106 INFO L225 Difference]: With dead ends: 4210 [2023-12-21 02:07:49,106 INFO L226 Difference]: Without dead ends: 2872 [2023-12-21 02:07:49,113 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 240 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=356, Invalid=1050, Unknown=0, NotChecked=0, Total=1406 [2023-12-21 02:07:49,116 INFO L413 NwaCegarLoop]: 160 mSDtfsCounter, 652 mSDsluCounter, 1029 mSDsCounter, 0 mSdLazyCounter, 462 mSolverCounterSat, 142 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 652 SdHoareTripleChecker+Valid, 1189 SdHoareTripleChecker+Invalid, 604 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 142 IncrementalHoareTripleChecker+Valid, 462 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-21 02:07:49,116 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [652 Valid, 1189 Invalid, 604 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [142 Valid, 462 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-21 02:07:49,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2872 states. [2023-12-21 02:07:49,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2872 to 1813. [2023-12-21 02:07:49,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1813 states, 1677 states have (on average 1.184257602862254) internal successors, (1986), 1677 states have internal predecessors, (1986), 100 states have call successors, (100), 35 states have call predecessors, (100), 35 states have return successors, (100), 100 states have call predecessors, (100), 100 states have call successors, (100) [2023-12-21 02:07:49,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1813 states to 1813 states and 2186 transitions. [2023-12-21 02:07:49,302 INFO L78 Accepts]: Start accepts. Automaton has 1813 states and 2186 transitions. Word has length 158 [2023-12-21 02:07:49,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 02:07:49,303 INFO L495 AbstractCegarLoop]: Abstraction has 1813 states and 2186 transitions. [2023-12-21 02:07:49,303 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 4.6923076923076925) internal successors, (61), 13 states have internal predecessors, (61), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-21 02:07:49,303 INFO L276 IsEmpty]: Start isEmpty. Operand 1813 states and 2186 transitions. [2023-12-21 02:07:49,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2023-12-21 02:07:49,304 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 02:07:49,305 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:07:49,305 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2023-12-21 02:07:49,305 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 02:07:49,305 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 02:07:49,305 INFO L85 PathProgramCache]: Analyzing trace with hash 1207984548, now seen corresponding path program 1 times [2023-12-21 02:07:49,305 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 02:07:49,305 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1243266706] [2023-12-21 02:07:49,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:07:49,305 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 02:07:49,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:50,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 02:07:50,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:50,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 02:07:50,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:50,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 02:07:50,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:50,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 02:07:50,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:50,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-21 02:07:50,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:50,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 02:07:50,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:50,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-21 02:07:50,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:50,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 02:07:50,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:50,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 02:07:50,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:50,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 02:07:50,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:50,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-21 02:07:50,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:50,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 02:07:50,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:50,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-21 02:07:50,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:50,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-21 02:07:50,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:50,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-21 02:07:50,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:50,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-21 02:07:50,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:50,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-21 02:07:50,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:50,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-21 02:07:50,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:50,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-21 02:07:50,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:50,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-12-21 02:07:50,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:50,420 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-12-21 02:07:50,420 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 02:07:50,421 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1243266706] [2023-12-21 02:07:50,421 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1243266706] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 02:07:50,421 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 02:07:50,421 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2023-12-21 02:07:50,421 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [610947659] [2023-12-21 02:07:50,421 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 02:07:50,421 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-12-21 02:07:50,421 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 02:07:50,421 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-12-21 02:07:50,422 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2023-12-21 02:07:50,422 INFO L87 Difference]: Start difference. First operand 1813 states and 2186 transitions. Second operand has 18 states, 18 states have (on average 3.388888888888889) internal successors, (61), 18 states have internal predecessors, (61), 4 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 4 states have call predecessors, (20), 4 states have call successors, (20) [2023-12-21 02:07:52,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 02:07:52,414 INFO L93 Difference]: Finished difference Result 4509 states and 5406 transitions. [2023-12-21 02:07:52,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2023-12-21 02:07:52,415 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 3.388888888888889) internal successors, (61), 18 states have internal predecessors, (61), 4 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 4 states have call predecessors, (20), 4 states have call successors, (20) Word has length 158 [2023-12-21 02:07:52,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 02:07:52,420 INFO L225 Difference]: With dead ends: 4509 [2023-12-21 02:07:52,420 INFO L226 Difference]: Without dead ends: 3393 [2023-12-21 02:07:52,422 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 494 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=480, Invalid=1776, Unknown=0, NotChecked=0, Total=2256 [2023-12-21 02:07:52,422 INFO L413 NwaCegarLoop]: 127 mSDtfsCounter, 1176 mSDsluCounter, 1413 mSDsCounter, 0 mSdLazyCounter, 1199 mSolverCounterSat, 260 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1176 SdHoareTripleChecker+Valid, 1540 SdHoareTripleChecker+Invalid, 1459 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 260 IncrementalHoareTripleChecker+Valid, 1199 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-21 02:07:52,422 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1176 Valid, 1540 Invalid, 1459 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [260 Valid, 1199 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-21 02:07:52,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3393 states. [2023-12-21 02:07:52,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3393 to 2203. [2023-12-21 02:07:52,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2203 states, 2064 states have (on average 1.193313953488372) internal successors, (2463), 2064 states have internal predecessors, (2463), 100 states have call successors, (100), 38 states have call predecessors, (100), 38 states have return successors, (100), 100 states have call predecessors, (100), 100 states have call successors, (100) [2023-12-21 02:07:52,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2203 states to 2203 states and 2663 transitions. [2023-12-21 02:07:52,636 INFO L78 Accepts]: Start accepts. Automaton has 2203 states and 2663 transitions. Word has length 158 [2023-12-21 02:07:52,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 02:07:52,636 INFO L495 AbstractCegarLoop]: Abstraction has 2203 states and 2663 transitions. [2023-12-21 02:07:52,636 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 3.388888888888889) internal successors, (61), 18 states have internal predecessors, (61), 4 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 4 states have call predecessors, (20), 4 states have call successors, (20) [2023-12-21 02:07:52,636 INFO L276 IsEmpty]: Start isEmpty. Operand 2203 states and 2663 transitions. [2023-12-21 02:07:52,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2023-12-21 02:07:52,638 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 02:07:52,638 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:07:52,638 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2023-12-21 02:07:52,638 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 02:07:52,638 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 02:07:52,638 INFO L85 PathProgramCache]: Analyzing trace with hash -1311975386, now seen corresponding path program 1 times [2023-12-21 02:07:52,639 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 02:07:52,639 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1604246599] [2023-12-21 02:07:52,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:07:52,639 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 02:07:52,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:52,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 02:07:52,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:52,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 02:07:52,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:52,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 02:07:52,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:52,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 02:07:52,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:52,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-21 02:07:52,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:52,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 02:07:52,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:52,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-21 02:07:52,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:52,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 02:07:52,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:52,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 02:07:52,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:53,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 02:07:53,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:53,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-21 02:07:53,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:53,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 02:07:53,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:53,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-21 02:07:53,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:53,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-21 02:07:53,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:53,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-21 02:07:53,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:53,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-21 02:07:53,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:53,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-21 02:07:53,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:53,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-21 02:07:53,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:53,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-21 02:07:53,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:53,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-12-21 02:07:53,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:53,021 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-12-21 02:07:53,021 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 02:07:53,021 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1604246599] [2023-12-21 02:07:53,021 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1604246599] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 02:07:53,021 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 02:07:53,021 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-21 02:07:53,021 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [383626467] [2023-12-21 02:07:53,022 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 02:07:53,022 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-21 02:07:53,022 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 02:07:53,022 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-21 02:07:53,023 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2023-12-21 02:07:53,023 INFO L87 Difference]: Start difference. First operand 2203 states and 2663 transitions. Second operand has 10 states, 10 states have (on average 6.1) internal successors, (61), 10 states have internal predecessors, (61), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-21 02:07:53,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 02:07:53,575 INFO L93 Difference]: Finished difference Result 4137 states and 4991 transitions. [2023-12-21 02:07:53,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-21 02:07:53,575 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 6.1) internal successors, (61), 10 states have internal predecessors, (61), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 158 [2023-12-21 02:07:53,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 02:07:53,578 INFO L225 Difference]: With dead ends: 4137 [2023-12-21 02:07:53,579 INFO L226 Difference]: Without dead ends: 2381 [2023-12-21 02:07:53,580 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=134, Unknown=0, NotChecked=0, Total=182 [2023-12-21 02:07:53,581 INFO L413 NwaCegarLoop]: 121 mSDtfsCounter, 221 mSDsluCounter, 501 mSDsCounter, 0 mSdLazyCounter, 463 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 221 SdHoareTripleChecker+Valid, 622 SdHoareTripleChecker+Invalid, 466 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 463 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-21 02:07:53,581 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [221 Valid, 622 Invalid, 466 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 463 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-21 02:07:53,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2381 states. [2023-12-21 02:07:53,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2381 to 2127. [2023-12-21 02:07:53,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2127 states, 1988 states have (on average 1.1976861167002013) internal successors, (2381), 1988 states have internal predecessors, (2381), 100 states have call successors, (100), 38 states have call predecessors, (100), 38 states have return successors, (100), 100 states have call predecessors, (100), 100 states have call successors, (100) [2023-12-21 02:07:53,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2127 states to 2127 states and 2581 transitions. [2023-12-21 02:07:53,774 INFO L78 Accepts]: Start accepts. Automaton has 2127 states and 2581 transitions. Word has length 158 [2023-12-21 02:07:53,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 02:07:53,774 INFO L495 AbstractCegarLoop]: Abstraction has 2127 states and 2581 transitions. [2023-12-21 02:07:53,774 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.1) internal successors, (61), 10 states have internal predecessors, (61), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-21 02:07:53,774 INFO L276 IsEmpty]: Start isEmpty. Operand 2127 states and 2581 transitions. [2023-12-21 02:07:53,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2023-12-21 02:07:53,776 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 02:07:53,776 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:07:53,776 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2023-12-21 02:07:53,776 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 02:07:53,776 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 02:07:53,776 INFO L85 PathProgramCache]: Analyzing trace with hash 1348533158, now seen corresponding path program 1 times [2023-12-21 02:07:53,776 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 02:07:53,776 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [917869784] [2023-12-21 02:07:53,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:07:53,777 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 02:07:53,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:54,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 02:07:54,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:54,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 02:07:54,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:54,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 02:07:54,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:54,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 02:07:54,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:54,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-21 02:07:54,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:54,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 02:07:54,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:54,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-21 02:07:54,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:54,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 02:07:54,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:54,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 02:07:54,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:54,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 02:07:54,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:54,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-21 02:07:54,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:54,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 02:07:54,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:54,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-21 02:07:54,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:54,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-21 02:07:54,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:54,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-21 02:07:54,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:54,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-21 02:07:54,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:54,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-21 02:07:54,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:54,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-21 02:07:54,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:54,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-21 02:07:54,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:54,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-12-21 02:07:54,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:54,288 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-12-21 02:07:54,289 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 02:07:54,289 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [917869784] [2023-12-21 02:07:54,289 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [917869784] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 02:07:54,289 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 02:07:54,289 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2023-12-21 02:07:54,289 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1709730915] [2023-12-21 02:07:54,289 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 02:07:54,289 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-12-21 02:07:54,289 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 02:07:54,290 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-12-21 02:07:54,290 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2023-12-21 02:07:54,290 INFO L87 Difference]: Start difference. First operand 2127 states and 2581 transitions. Second operand has 13 states, 12 states have (on average 5.083333333333333) internal successors, (61), 12 states have internal predecessors, (61), 3 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2023-12-21 02:07:55,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 02:07:55,041 INFO L93 Difference]: Finished difference Result 3385 states and 4095 transitions. [2023-12-21 02:07:55,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-21 02:07:55,042 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 5.083333333333333) internal successors, (61), 12 states have internal predecessors, (61), 3 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) Word has length 158 [2023-12-21 02:07:55,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 02:07:55,045 INFO L225 Difference]: With dead ends: 3385 [2023-12-21 02:07:55,045 INFO L226 Difference]: Without dead ends: 2303 [2023-12-21 02:07:55,046 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=102, Invalid=360, Unknown=0, NotChecked=0, Total=462 [2023-12-21 02:07:55,047 INFO L413 NwaCegarLoop]: 172 mSDtfsCounter, 334 mSDsluCounter, 775 mSDsCounter, 0 mSdLazyCounter, 698 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 334 SdHoareTripleChecker+Valid, 947 SdHoareTripleChecker+Invalid, 760 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 698 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-21 02:07:55,047 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [334 Valid, 947 Invalid, 760 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 698 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-21 02:07:55,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2303 states. [2023-12-21 02:07:55,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2303 to 2091. [2023-12-21 02:07:55,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2091 states, 1952 states have (on average 1.2003073770491803) internal successors, (2343), 1952 states have internal predecessors, (2343), 100 states have call successors, (100), 38 states have call predecessors, (100), 38 states have return successors, (100), 100 states have call predecessors, (100), 100 states have call successors, (100) [2023-12-21 02:07:55,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2091 states to 2091 states and 2543 transitions. [2023-12-21 02:07:55,263 INFO L78 Accepts]: Start accepts. Automaton has 2091 states and 2543 transitions. Word has length 158 [2023-12-21 02:07:55,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 02:07:55,263 INFO L495 AbstractCegarLoop]: Abstraction has 2091 states and 2543 transitions. [2023-12-21 02:07:55,263 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 5.083333333333333) internal successors, (61), 12 states have internal predecessors, (61), 3 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2023-12-21 02:07:55,264 INFO L276 IsEmpty]: Start isEmpty. Operand 2091 states and 2543 transitions. [2023-12-21 02:07:55,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2023-12-21 02:07:55,265 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 02:07:55,265 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:07:55,266 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2023-12-21 02:07:55,266 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 02:07:55,266 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 02:07:55,266 INFO L85 PathProgramCache]: Analyzing trace with hash -1737974122, now seen corresponding path program 1 times [2023-12-21 02:07:55,266 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 02:07:55,266 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [260297028] [2023-12-21 02:07:55,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:07:55,266 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 02:07:55,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:55,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 02:07:55,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:55,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 02:07:55,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:55,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 02:07:55,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:55,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 02:07:55,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:55,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-21 02:07:55,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:55,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 02:07:55,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:55,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-21 02:07:55,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:55,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 02:07:55,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:55,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 02:07:55,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:55,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 02:07:55,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:55,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-21 02:07:55,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:55,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 02:07:55,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:55,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-21 02:07:55,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:55,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-21 02:07:55,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:55,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-21 02:07:55,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:55,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-21 02:07:55,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:55,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-21 02:07:55,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:55,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-21 02:07:55,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:55,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-21 02:07:55,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:55,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-12-21 02:07:55,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:55,425 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-12-21 02:07:55,425 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 02:07:55,425 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [260297028] [2023-12-21 02:07:55,425 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [260297028] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 02:07:55,425 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 02:07:55,425 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-21 02:07:55,426 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [273181656] [2023-12-21 02:07:55,426 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 02:07:55,426 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 02:07:55,426 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 02:07:55,426 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 02:07:55,426 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-21 02:07:55,427 INFO L87 Difference]: Start difference. First operand 2091 states and 2543 transitions. Second operand has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-21 02:07:55,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 02:07:55,628 INFO L93 Difference]: Finished difference Result 2105 states and 2560 transitions. [2023-12-21 02:07:55,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-21 02:07:55,628 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 160 [2023-12-21 02:07:55,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 02:07:55,631 INFO L225 Difference]: With dead ends: 2105 [2023-12-21 02:07:55,631 INFO L226 Difference]: Without dead ends: 2103 [2023-12-21 02:07:55,631 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 43 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 02:07:55,632 INFO L413 NwaCegarLoop]: 138 mSDtfsCounter, 7 mSDsluCounter, 400 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 538 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 02:07:55,632 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 538 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 02:07:55,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2103 states. [2023-12-21 02:07:55,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2103 to 2103. [2023-12-21 02:07:55,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2103 states, 1964 states have (on average 1.1990835030549898) internal successors, (2355), 1964 states have internal predecessors, (2355), 100 states have call successors, (100), 38 states have call predecessors, (100), 38 states have return successors, (100), 100 states have call predecessors, (100), 100 states have call successors, (100) [2023-12-21 02:07:55,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2103 states to 2103 states and 2555 transitions. [2023-12-21 02:07:55,843 INFO L78 Accepts]: Start accepts. Automaton has 2103 states and 2555 transitions. Word has length 160 [2023-12-21 02:07:55,843 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 02:07:55,843 INFO L495 AbstractCegarLoop]: Abstraction has 2103 states and 2555 transitions. [2023-12-21 02:07:55,843 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-21 02:07:55,843 INFO L276 IsEmpty]: Start isEmpty. Operand 2103 states and 2555 transitions. [2023-12-21 02:07:55,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2023-12-21 02:07:55,845 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 02:07:55,845 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:07:55,845 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2023-12-21 02:07:55,845 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 02:07:55,845 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 02:07:55,845 INFO L85 PathProgramCache]: Analyzing trace with hash 1534361447, now seen corresponding path program 1 times [2023-12-21 02:07:55,845 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 02:07:55,845 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [830295029] [2023-12-21 02:07:55,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:07:55,845 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 02:07:55,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:56,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 02:07:56,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:56,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 02:07:56,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:56,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 02:07:56,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:56,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 02:07:56,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:56,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-21 02:07:56,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:56,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 02:07:56,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:56,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-21 02:07:56,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:56,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 02:07:56,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:56,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 02:07:56,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:56,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 02:07:56,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:56,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-21 02:07:56,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:56,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 02:07:56,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:56,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-21 02:07:56,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:56,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-21 02:07:56,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:56,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-21 02:07:56,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:56,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-21 02:07:56,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:56,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-21 02:07:56,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:56,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-21 02:07:56,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:56,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-21 02:07:56,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:56,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-12-21 02:07:56,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:56,707 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-12-21 02:07:56,707 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 02:07:56,707 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [830295029] [2023-12-21 02:07:56,707 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [830295029] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 02:07:56,707 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 02:07:56,707 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2023-12-21 02:07:56,707 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [888474086] [2023-12-21 02:07:56,707 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 02:07:56,708 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-12-21 02:07:56,708 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 02:07:56,708 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-12-21 02:07:56,708 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=178, Unknown=0, NotChecked=0, Total=210 [2023-12-21 02:07:56,708 INFO L87 Difference]: Start difference. First operand 2103 states and 2555 transitions. Second operand has 15 states, 14 states have (on average 4.5) internal successors, (63), 15 states have internal predecessors, (63), 4 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 3 states have call predecessors, (20), 4 states have call successors, (20) [2023-12-21 02:07:57,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 02:07:57,623 INFO L93 Difference]: Finished difference Result 3291 states and 3980 transitions. [2023-12-21 02:07:57,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-12-21 02:07:57,623 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 4.5) internal successors, (63), 15 states have internal predecessors, (63), 4 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 3 states have call predecessors, (20), 4 states have call successors, (20) Word has length 160 [2023-12-21 02:07:57,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 02:07:57,626 INFO L225 Difference]: With dead ends: 3291 [2023-12-21 02:07:57,626 INFO L226 Difference]: Without dead ends: 2239 [2023-12-21 02:07:57,627 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 85 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=205, Invalid=665, Unknown=0, NotChecked=0, Total=870 [2023-12-21 02:07:57,627 INFO L413 NwaCegarLoop]: 187 mSDtfsCounter, 550 mSDsluCounter, 1410 mSDsCounter, 0 mSdLazyCounter, 631 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 550 SdHoareTripleChecker+Valid, 1597 SdHoareTripleChecker+Invalid, 694 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 631 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-21 02:07:57,627 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [550 Valid, 1597 Invalid, 694 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 631 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-21 02:07:57,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2239 states. [2023-12-21 02:07:57,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2239 to 2111. [2023-12-21 02:07:57,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2111 states, 1972 states have (on average 1.1982758620689655) internal successors, (2363), 1972 states have internal predecessors, (2363), 100 states have call successors, (100), 38 states have call predecessors, (100), 38 states have return successors, (100), 100 states have call predecessors, (100), 100 states have call successors, (100) [2023-12-21 02:07:57,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2111 states to 2111 states and 2563 transitions. [2023-12-21 02:07:57,821 INFO L78 Accepts]: Start accepts. Automaton has 2111 states and 2563 transitions. Word has length 160 [2023-12-21 02:07:57,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 02:07:57,822 INFO L495 AbstractCegarLoop]: Abstraction has 2111 states and 2563 transitions. [2023-12-21 02:07:57,822 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 4.5) internal successors, (63), 15 states have internal predecessors, (63), 4 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 3 states have call predecessors, (20), 4 states have call successors, (20) [2023-12-21 02:07:57,822 INFO L276 IsEmpty]: Start isEmpty. Operand 2111 states and 2563 transitions. [2023-12-21 02:07:57,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2023-12-21 02:07:57,823 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 02:07:57,823 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:07:57,823 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2023-12-21 02:07:57,824 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 02:07:57,824 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 02:07:57,824 INFO L85 PathProgramCache]: Analyzing trace with hash 1904756203, now seen corresponding path program 1 times [2023-12-21 02:07:57,824 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 02:07:57,824 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [116024422] [2023-12-21 02:07:57,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:07:57,824 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 02:07:57,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:58,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 02:07:58,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:58,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 02:07:58,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:58,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 02:07:58,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:58,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 02:07:58,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:58,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-21 02:07:58,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:58,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 02:07:58,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:58,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-21 02:07:58,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:58,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 02:07:58,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:58,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 02:07:58,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:58,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 02:07:58,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:58,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-21 02:07:58,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:58,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 02:07:58,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:58,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-21 02:07:58,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:58,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-21 02:07:58,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:58,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-21 02:07:58,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:58,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-21 02:07:58,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:58,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-21 02:07:58,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:58,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-21 02:07:58,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:58,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-21 02:07:58,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:58,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-12-21 02:07:58,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:58,186 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-12-21 02:07:58,186 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 02:07:58,186 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [116024422] [2023-12-21 02:07:58,186 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [116024422] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 02:07:58,186 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 02:07:58,186 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-21 02:07:58,186 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [735023865] [2023-12-21 02:07:58,186 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 02:07:58,187 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-21 02:07:58,187 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 02:07:58,188 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-21 02:07:58,188 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2023-12-21 02:07:58,188 INFO L87 Difference]: Start difference. First operand 2111 states and 2563 transitions. Second operand has 10 states, 10 states have (on average 6.3) internal successors, (63), 10 states have internal predecessors, (63), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-21 02:07:58,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 02:07:58,511 INFO L93 Difference]: Finished difference Result 3233 states and 3917 transitions. [2023-12-21 02:07:58,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-21 02:07:58,511 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 6.3) internal successors, (63), 10 states have internal predecessors, (63), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 160 [2023-12-21 02:07:58,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 02:07:58,514 INFO L225 Difference]: With dead ends: 3233 [2023-12-21 02:07:58,514 INFO L226 Difference]: Without dead ends: 2173 [2023-12-21 02:07:58,515 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=64, Invalid=176, Unknown=0, NotChecked=0, Total=240 [2023-12-21 02:07:58,516 INFO L413 NwaCegarLoop]: 185 mSDtfsCounter, 113 mSDsluCounter, 1033 mSDsCounter, 0 mSdLazyCounter, 165 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 1218 SdHoareTripleChecker+Invalid, 167 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 165 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 02:07:58,516 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [113 Valid, 1218 Invalid, 167 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 165 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 02:07:58,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2173 states. [2023-12-21 02:07:58,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2173 to 2111. [2023-12-21 02:07:58,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2111 states, 1972 states have (on average 1.1982758620689655) internal successors, (2363), 1972 states have internal predecessors, (2363), 100 states have call successors, (100), 38 states have call predecessors, (100), 38 states have return successors, (100), 100 states have call predecessors, (100), 100 states have call successors, (100) [2023-12-21 02:07:58,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2111 states to 2111 states and 2563 transitions. [2023-12-21 02:07:58,713 INFO L78 Accepts]: Start accepts. Automaton has 2111 states and 2563 transitions. Word has length 160 [2023-12-21 02:07:58,713 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 02:07:58,714 INFO L495 AbstractCegarLoop]: Abstraction has 2111 states and 2563 transitions. [2023-12-21 02:07:58,714 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.3) internal successors, (63), 10 states have internal predecessors, (63), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-21 02:07:58,714 INFO L276 IsEmpty]: Start isEmpty. Operand 2111 states and 2563 transitions. [2023-12-21 02:07:58,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2023-12-21 02:07:58,715 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 02:07:58,715 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:07:58,715 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2023-12-21 02:07:58,716 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 02:07:58,716 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 02:07:58,716 INFO L85 PathProgramCache]: Analyzing trace with hash 1511729193, now seen corresponding path program 1 times [2023-12-21 02:07:58,716 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 02:07:58,716 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [103886523] [2023-12-21 02:07:58,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:07:58,716 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 02:07:58,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:58,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 02:07:58,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:58,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 02:07:58,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:58,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 02:07:58,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:58,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 02:07:58,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:58,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-21 02:07:58,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:58,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 02:07:58,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:58,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-21 02:07:58,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:58,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 02:07:58,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:58,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 02:07:58,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:58,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 02:07:58,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:58,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-21 02:07:58,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:58,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 02:07:58,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:58,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-21 02:07:58,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:58,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-21 02:07:58,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:58,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-21 02:07:58,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:58,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-21 02:07:58,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:58,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-21 02:07:58,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:58,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-21 02:07:58,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:58,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-21 02:07:58,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:58,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-12-21 02:07:58,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:58,987 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-12-21 02:07:58,988 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 02:07:58,988 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [103886523] [2023-12-21 02:07:58,988 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [103886523] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 02:07:58,988 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 02:07:58,988 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 02:07:58,988 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [512130540] [2023-12-21 02:07:58,988 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 02:07:58,988 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-21 02:07:58,988 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 02:07:58,989 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-21 02:07:58,989 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-12-21 02:07:58,989 INFO L87 Difference]: Start difference. First operand 2111 states and 2563 transitions. Second operand has 7 states, 7 states have (on average 9.0) internal successors, (63), 7 states have internal predecessors, (63), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-21 02:07:59,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 02:07:59,315 INFO L93 Difference]: Finished difference Result 3203 states and 3875 transitions. [2023-12-21 02:07:59,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-21 02:07:59,316 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.0) internal successors, (63), 7 states have internal predecessors, (63), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 160 [2023-12-21 02:07:59,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 02:07:59,319 INFO L225 Difference]: With dead ends: 3203 [2023-12-21 02:07:59,319 INFO L226 Difference]: Without dead ends: 2143 [2023-12-21 02:07:59,320 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2023-12-21 02:07:59,321 INFO L413 NwaCegarLoop]: 173 mSDtfsCounter, 245 mSDsluCounter, 308 mSDsCounter, 0 mSdLazyCounter, 168 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 245 SdHoareTripleChecker+Valid, 481 SdHoareTripleChecker+Invalid, 173 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 168 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 02:07:59,321 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [245 Valid, 481 Invalid, 173 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 168 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 02:07:59,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2143 states. [2023-12-21 02:07:59,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2143 to 2103. [2023-12-21 02:07:59,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2103 states, 1964 states have (on average 1.1970468431771895) internal successors, (2351), 1964 states have internal predecessors, (2351), 100 states have call successors, (100), 38 states have call predecessors, (100), 38 states have return successors, (100), 100 states have call predecessors, (100), 100 states have call successors, (100) [2023-12-21 02:07:59,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2103 states to 2103 states and 2551 transitions. [2023-12-21 02:07:59,526 INFO L78 Accepts]: Start accepts. Automaton has 2103 states and 2551 transitions. Word has length 160 [2023-12-21 02:07:59,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 02:07:59,526 INFO L495 AbstractCegarLoop]: Abstraction has 2103 states and 2551 transitions. [2023-12-21 02:07:59,527 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.0) internal successors, (63), 7 states have internal predecessors, (63), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-21 02:07:59,527 INFO L276 IsEmpty]: Start isEmpty. Operand 2103 states and 2551 transitions. [2023-12-21 02:07:59,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2023-12-21 02:07:59,528 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 02:07:59,528 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:07:59,528 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2023-12-21 02:07:59,528 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 02:07:59,529 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 02:07:59,529 INFO L85 PathProgramCache]: Analyzing trace with hash 856739249, now seen corresponding path program 1 times [2023-12-21 02:07:59,529 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 02:07:59,529 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [692218627] [2023-12-21 02:07:59,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:07:59,529 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 02:07:59,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:59,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 02:07:59,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:59,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 02:07:59,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:59,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 02:07:59,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:59,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 02:07:59,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:59,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-21 02:07:59,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:59,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 02:07:59,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:59,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-21 02:07:59,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:59,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 02:07:59,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:59,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 02:07:59,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:59,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 02:07:59,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:59,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-21 02:07:59,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:59,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 02:07:59,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:59,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-21 02:07:59,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:59,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-21 02:07:59,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:59,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-21 02:07:59,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:59,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-21 02:07:59,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:59,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-21 02:07:59,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:59,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-21 02:07:59,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:59,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-21 02:07:59,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:59,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-12-21 02:07:59,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:07:59,844 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-12-21 02:07:59,844 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 02:07:59,844 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [692218627] [2023-12-21 02:07:59,844 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [692218627] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 02:07:59,844 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 02:07:59,844 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-21 02:07:59,844 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [96944033] [2023-12-21 02:07:59,844 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 02:07:59,845 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-21 02:07:59,845 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 02:07:59,845 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-21 02:07:59,845 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2023-12-21 02:07:59,845 INFO L87 Difference]: Start difference. First operand 2103 states and 2551 transitions. Second operand has 9 states, 9 states have (on average 7.222222222222222) internal successors, (65), 9 states have internal predecessors, (65), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-21 02:08:00,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 02:08:00,349 INFO L93 Difference]: Finished difference Result 2582 states and 3118 transitions. [2023-12-21 02:08:00,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-21 02:08:00,350 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.222222222222222) internal successors, (65), 9 states have internal predecessors, (65), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 162 [2023-12-21 02:08:00,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 02:08:00,353 INFO L225 Difference]: With dead ends: 2582 [2023-12-21 02:08:00,353 INFO L226 Difference]: Without dead ends: 2580 [2023-12-21 02:08:00,353 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=95, Invalid=247, Unknown=0, NotChecked=0, Total=342 [2023-12-21 02:08:00,354 INFO L413 NwaCegarLoop]: 147 mSDtfsCounter, 292 mSDsluCounter, 640 mSDsCounter, 0 mSdLazyCounter, 227 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 292 SdHoareTripleChecker+Valid, 787 SdHoareTripleChecker+Invalid, 251 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 227 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-21 02:08:00,354 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [292 Valid, 787 Invalid, 251 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 227 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-21 02:08:00,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2580 states. [2023-12-21 02:08:00,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2580 to 2468. [2023-12-21 02:08:00,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2468 states, 2329 states have (on average 1.1949334478316873) internal successors, (2783), 2329 states have internal predecessors, (2783), 100 states have call successors, (100), 38 states have call predecessors, (100), 38 states have return successors, (100), 100 states have call predecessors, (100), 100 states have call successors, (100) [2023-12-21 02:08:00,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2468 states to 2468 states and 2983 transitions. [2023-12-21 02:08:00,551 INFO L78 Accepts]: Start accepts. Automaton has 2468 states and 2983 transitions. Word has length 162 [2023-12-21 02:08:00,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 02:08:00,551 INFO L495 AbstractCegarLoop]: Abstraction has 2468 states and 2983 transitions. [2023-12-21 02:08:00,551 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.222222222222222) internal successors, (65), 9 states have internal predecessors, (65), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-21 02:08:00,551 INFO L276 IsEmpty]: Start isEmpty. Operand 2468 states and 2983 transitions. [2023-12-21 02:08:00,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2023-12-21 02:08:00,553 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 02:08:00,553 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:08:00,553 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2023-12-21 02:08:00,553 INFO L420 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 02:08:00,553 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 02:08:00,553 INFO L85 PathProgramCache]: Analyzing trace with hash -699110516, now seen corresponding path program 1 times [2023-12-21 02:08:00,553 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 02:08:00,553 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [910192565] [2023-12-21 02:08:00,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:08:00,553 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 02:08:00,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:01,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 02:08:01,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:01,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 02:08:01,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:01,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 02:08:01,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:01,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 02:08:01,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:01,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-21 02:08:01,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:01,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 02:08:01,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:01,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-21 02:08:01,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:01,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 02:08:01,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:01,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 02:08:01,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:01,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 02:08:01,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:01,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-21 02:08:01,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:01,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 02:08:01,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:01,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-21 02:08:01,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:01,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-21 02:08:01,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:01,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-21 02:08:01,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:01,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-21 02:08:01,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:01,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-21 02:08:01,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:01,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-21 02:08:01,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:01,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-21 02:08:01,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:01,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-12-21 02:08:01,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:01,356 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-12-21 02:08:01,356 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 02:08:01,356 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [910192565] [2023-12-21 02:08:01,356 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [910192565] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 02:08:01,356 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 02:08:01,356 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2023-12-21 02:08:01,356 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [678685832] [2023-12-21 02:08:01,356 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 02:08:01,356 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-12-21 02:08:01,357 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 02:08:01,357 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-12-21 02:08:01,357 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=264, Unknown=0, NotChecked=0, Total=306 [2023-12-21 02:08:01,357 INFO L87 Difference]: Start difference. First operand 2468 states and 2983 transitions. Second operand has 18 states, 18 states have (on average 3.611111111111111) internal successors, (65), 18 states have internal predecessors, (65), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2023-12-21 02:08:02,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 02:08:02,679 INFO L93 Difference]: Finished difference Result 5561 states and 6660 transitions. [2023-12-21 02:08:02,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2023-12-21 02:08:02,680 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 3.611111111111111) internal successors, (65), 18 states have internal predecessors, (65), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 162 [2023-12-21 02:08:02,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 02:08:02,685 INFO L225 Difference]: With dead ends: 5561 [2023-12-21 02:08:02,685 INFO L226 Difference]: Without dead ends: 4291 [2023-12-21 02:08:02,688 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 308 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=357, Invalid=1283, Unknown=0, NotChecked=0, Total=1640 [2023-12-21 02:08:02,688 INFO L413 NwaCegarLoop]: 136 mSDtfsCounter, 1042 mSDsluCounter, 1383 mSDsCounter, 0 mSdLazyCounter, 1066 mSolverCounterSat, 169 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1042 SdHoareTripleChecker+Valid, 1519 SdHoareTripleChecker+Invalid, 1235 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 169 IncrementalHoareTripleChecker+Valid, 1066 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-21 02:08:02,688 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1042 Valid, 1519 Invalid, 1235 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [169 Valid, 1066 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-21 02:08:02,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4291 states. [2023-12-21 02:08:02,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4291 to 2937. [2023-12-21 02:08:02,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2937 states, 2742 states have (on average 1.1834427425237053) internal successors, (3245), 2742 states have internal predecessors, (3245), 140 states have call successors, (140), 54 states have call predecessors, (140), 54 states have return successors, (140), 140 states have call predecessors, (140), 140 states have call successors, (140) [2023-12-21 02:08:02,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2937 states to 2937 states and 3525 transitions. [2023-12-21 02:08:02,995 INFO L78 Accepts]: Start accepts. Automaton has 2937 states and 3525 transitions. Word has length 162 [2023-12-21 02:08:02,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 02:08:02,995 INFO L495 AbstractCegarLoop]: Abstraction has 2937 states and 3525 transitions. [2023-12-21 02:08:02,995 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 3.611111111111111) internal successors, (65), 18 states have internal predecessors, (65), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2023-12-21 02:08:02,995 INFO L276 IsEmpty]: Start isEmpty. Operand 2937 states and 3525 transitions. [2023-12-21 02:08:02,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2023-12-21 02:08:02,997 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 02:08:02,997 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:08:02,997 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2023-12-21 02:08:02,997 INFO L420 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 02:08:02,997 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 02:08:02,997 INFO L85 PathProgramCache]: Analyzing trace with hash 1075896846, now seen corresponding path program 1 times [2023-12-21 02:08:02,997 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 02:08:02,998 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1134710554] [2023-12-21 02:08:02,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:08:02,998 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 02:08:03,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:03,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 02:08:03,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:03,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 02:08:03,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:03,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 02:08:03,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:03,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 02:08:03,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:03,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-21 02:08:03,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:03,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 02:08:03,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:03,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-21 02:08:03,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:03,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 02:08:03,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:03,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 02:08:03,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:03,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 02:08:03,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:03,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-21 02:08:03,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:03,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 02:08:03,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:03,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-21 02:08:03,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:03,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-21 02:08:03,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:03,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-21 02:08:03,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:03,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-21 02:08:03,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:03,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-21 02:08:03,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:03,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-21 02:08:03,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:03,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-21 02:08:03,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:03,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-12-21 02:08:03,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:03,642 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-12-21 02:08:03,642 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 02:08:03,643 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1134710554] [2023-12-21 02:08:03,643 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1134710554] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 02:08:03,643 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 02:08:03,643 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2023-12-21 02:08:03,643 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [671097114] [2023-12-21 02:08:03,643 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 02:08:03,643 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-12-21 02:08:03,643 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 02:08:03,644 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-12-21 02:08:03,644 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=172, Unknown=0, NotChecked=0, Total=210 [2023-12-21 02:08:03,644 INFO L87 Difference]: Start difference. First operand 2937 states and 3525 transitions. Second operand has 15 states, 15 states have (on average 4.333333333333333) internal successors, (65), 15 states have internal predecessors, (65), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2023-12-21 02:08:04,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 02:08:04,815 INFO L93 Difference]: Finished difference Result 4768 states and 5701 transitions. [2023-12-21 02:08:04,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-12-21 02:08:04,815 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 4.333333333333333) internal successors, (65), 15 states have internal predecessors, (65), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 162 [2023-12-21 02:08:04,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 02:08:04,820 INFO L225 Difference]: With dead ends: 4768 [2023-12-21 02:08:04,820 INFO L226 Difference]: Without dead ends: 3498 [2023-12-21 02:08:04,822 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 44 SyntacticMatches, 1 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 168 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=178, Invalid=752, Unknown=0, NotChecked=0, Total=930 [2023-12-21 02:08:04,822 INFO L413 NwaCegarLoop]: 113 mSDtfsCounter, 426 mSDsluCounter, 898 mSDsCounter, 0 mSdLazyCounter, 967 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 426 SdHoareTripleChecker+Valid, 1011 SdHoareTripleChecker+Invalid, 996 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 967 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-21 02:08:04,823 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [426 Valid, 1011 Invalid, 996 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 967 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-21 02:08:04,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3498 states. [2023-12-21 02:08:05,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3498 to 2985. [2023-12-21 02:08:05,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2985 states, 2790 states have (on average 1.1824372759856632) internal successors, (3299), 2790 states have internal predecessors, (3299), 140 states have call successors, (140), 54 states have call predecessors, (140), 54 states have return successors, (140), 140 states have call predecessors, (140), 140 states have call successors, (140) [2023-12-21 02:08:05,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2985 states to 2985 states and 3579 transitions. [2023-12-21 02:08:05,131 INFO L78 Accepts]: Start accepts. Automaton has 2985 states and 3579 transitions. Word has length 162 [2023-12-21 02:08:05,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 02:08:05,131 INFO L495 AbstractCegarLoop]: Abstraction has 2985 states and 3579 transitions. [2023-12-21 02:08:05,131 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 4.333333333333333) internal successors, (65), 15 states have internal predecessors, (65), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2023-12-21 02:08:05,132 INFO L276 IsEmpty]: Start isEmpty. Operand 2985 states and 3579 transitions. [2023-12-21 02:08:05,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2023-12-21 02:08:05,133 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 02:08:05,133 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:08:05,133 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2023-12-21 02:08:05,133 INFO L420 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 02:08:05,133 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 02:08:05,133 INFO L85 PathProgramCache]: Analyzing trace with hash 1601712074, now seen corresponding path program 1 times [2023-12-21 02:08:05,134 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 02:08:05,134 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1679919254] [2023-12-21 02:08:05,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:08:05,134 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 02:08:05,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:05,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 02:08:05,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:05,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 02:08:05,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:05,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 02:08:05,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:05,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 02:08:05,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:05,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-21 02:08:05,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:05,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 02:08:05,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:05,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-21 02:08:05,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:05,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 02:08:05,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:05,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 02:08:05,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:05,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 02:08:05,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:05,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-21 02:08:05,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:05,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 02:08:05,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:05,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-21 02:08:05,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:05,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-21 02:08:05,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:05,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-21 02:08:05,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:05,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-21 02:08:05,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:05,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-21 02:08:05,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:05,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-21 02:08:05,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:05,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-21 02:08:05,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:05,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-12-21 02:08:05,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:05,496 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-12-21 02:08:05,496 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 02:08:05,496 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1679919254] [2023-12-21 02:08:05,496 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1679919254] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 02:08:05,496 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 02:08:05,496 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-21 02:08:05,496 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1363490727] [2023-12-21 02:08:05,496 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 02:08:05,497 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-21 02:08:05,497 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 02:08:05,499 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-21 02:08:05,499 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2023-12-21 02:08:05,499 INFO L87 Difference]: Start difference. First operand 2985 states and 3579 transitions. Second operand has 10 states, 10 states have (on average 6.5) internal successors, (65), 10 states have internal predecessors, (65), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-21 02:08:06,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 02:08:06,165 INFO L93 Difference]: Finished difference Result 5000 states and 5927 transitions. [2023-12-21 02:08:06,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-21 02:08:06,166 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 6.5) internal successors, (65), 10 states have internal predecessors, (65), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 162 [2023-12-21 02:08:06,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 02:08:06,170 INFO L225 Difference]: With dead ends: 5000 [2023-12-21 02:08:06,170 INFO L226 Difference]: Without dead ends: 3662 [2023-12-21 02:08:06,171 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=60, Invalid=180, Unknown=0, NotChecked=0, Total=240 [2023-12-21 02:08:06,172 INFO L413 NwaCegarLoop]: 148 mSDtfsCounter, 246 mSDsluCounter, 597 mSDsCounter, 0 mSdLazyCounter, 560 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 246 SdHoareTripleChecker+Valid, 745 SdHoareTripleChecker+Invalid, 585 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 560 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-21 02:08:06,172 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [246 Valid, 745 Invalid, 585 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 560 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-21 02:08:06,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3662 states. [2023-12-21 02:08:06,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3662 to 2993. [2023-12-21 02:08:06,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2993 states, 2798 states have (on average 1.181915654038599) internal successors, (3307), 2798 states have internal predecessors, (3307), 140 states have call successors, (140), 54 states have call predecessors, (140), 54 states have return successors, (140), 140 states have call predecessors, (140), 140 states have call successors, (140) [2023-12-21 02:08:06,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2993 states to 2993 states and 3587 transitions. [2023-12-21 02:08:06,474 INFO L78 Accepts]: Start accepts. Automaton has 2993 states and 3587 transitions. Word has length 162 [2023-12-21 02:08:06,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 02:08:06,475 INFO L495 AbstractCegarLoop]: Abstraction has 2993 states and 3587 transitions. [2023-12-21 02:08:06,475 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.5) internal successors, (65), 10 states have internal predecessors, (65), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-21 02:08:06,475 INFO L276 IsEmpty]: Start isEmpty. Operand 2993 states and 3587 transitions. [2023-12-21 02:08:06,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2023-12-21 02:08:06,476 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 02:08:06,476 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:08:06,476 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2023-12-21 02:08:06,476 INFO L420 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 02:08:06,477 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 02:08:06,477 INFO L85 PathProgramCache]: Analyzing trace with hash 687092878, now seen corresponding path program 1 times [2023-12-21 02:08:06,477 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 02:08:06,477 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1352050185] [2023-12-21 02:08:06,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:08:06,477 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 02:08:06,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:07,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 02:08:07,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:07,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 02:08:07,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:07,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 02:08:07,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:07,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 02:08:07,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:07,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-21 02:08:07,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:07,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 02:08:07,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:07,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-21 02:08:07,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:07,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 02:08:07,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:07,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 02:08:07,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:07,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 02:08:07,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:07,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-21 02:08:07,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:07,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 02:08:07,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:07,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-21 02:08:07,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:07,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-21 02:08:07,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:07,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-21 02:08:07,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:07,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-21 02:08:07,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:07,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-21 02:08:07,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:07,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-21 02:08:07,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:07,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-21 02:08:07,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:07,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-12-21 02:08:07,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:07,172 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-12-21 02:08:07,172 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 02:08:07,172 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1352050185] [2023-12-21 02:08:07,172 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1352050185] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 02:08:07,172 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 02:08:07,172 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2023-12-21 02:08:07,172 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [28010168] [2023-12-21 02:08:07,172 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 02:08:07,173 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-12-21 02:08:07,173 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 02:08:07,173 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-12-21 02:08:07,173 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=172, Unknown=0, NotChecked=0, Total=210 [2023-12-21 02:08:07,173 INFO L87 Difference]: Start difference. First operand 2993 states and 3587 transitions. Second operand has 15 states, 15 states have (on average 4.333333333333333) internal successors, (65), 15 states have internal predecessors, (65), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2023-12-21 02:08:08,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 02:08:08,337 INFO L93 Difference]: Finished difference Result 4691 states and 5603 transitions. [2023-12-21 02:08:08,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-12-21 02:08:08,337 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 4.333333333333333) internal successors, (65), 15 states have internal predecessors, (65), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 162 [2023-12-21 02:08:08,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 02:08:08,341 INFO L225 Difference]: With dead ends: 4691 [2023-12-21 02:08:08,341 INFO L226 Difference]: Without dead ends: 3349 [2023-12-21 02:08:08,343 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 44 SyntacticMatches, 1 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 162 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=178, Invalid=752, Unknown=0, NotChecked=0, Total=930 [2023-12-21 02:08:08,343 INFO L413 NwaCegarLoop]: 171 mSDtfsCounter, 466 mSDsluCounter, 1059 mSDsCounter, 0 mSdLazyCounter, 1041 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 466 SdHoareTripleChecker+Valid, 1230 SdHoareTripleChecker+Invalid, 1081 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 1041 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-21 02:08:08,343 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [466 Valid, 1230 Invalid, 1081 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 1041 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-21 02:08:08,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3349 states. [2023-12-21 02:08:08,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3349 to 3023. [2023-12-21 02:08:08,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3023 states, 2828 states have (on average 1.17998585572843) internal successors, (3337), 2828 states have internal predecessors, (3337), 140 states have call successors, (140), 54 states have call predecessors, (140), 54 states have return successors, (140), 140 states have call predecessors, (140), 140 states have call successors, (140) [2023-12-21 02:08:08,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3023 states to 3023 states and 3617 transitions. [2023-12-21 02:08:08,653 INFO L78 Accepts]: Start accepts. Automaton has 3023 states and 3617 transitions. Word has length 162 [2023-12-21 02:08:08,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 02:08:08,654 INFO L495 AbstractCegarLoop]: Abstraction has 3023 states and 3617 transitions. [2023-12-21 02:08:08,654 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 4.333333333333333) internal successors, (65), 15 states have internal predecessors, (65), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2023-12-21 02:08:08,654 INFO L276 IsEmpty]: Start isEmpty. Operand 3023 states and 3617 transitions. [2023-12-21 02:08:08,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2023-12-21 02:08:08,655 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 02:08:08,655 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:08:08,655 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2023-12-21 02:08:08,656 INFO L420 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 02:08:08,656 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 02:08:08,656 INFO L85 PathProgramCache]: Analyzing trace with hash -1832867056, now seen corresponding path program 1 times [2023-12-21 02:08:08,656 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 02:08:08,656 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [231371074] [2023-12-21 02:08:08,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:08:08,656 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 02:08:08,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:09,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 02:08:09,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:09,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 02:08:09,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:09,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 02:08:09,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:09,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 02:08:09,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:09,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-21 02:08:09,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:09,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 02:08:09,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:09,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-21 02:08:09,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:09,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 02:08:09,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:09,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 02:08:09,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:09,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 02:08:09,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:09,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-21 02:08:09,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:09,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 02:08:09,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:09,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-21 02:08:09,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:09,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-21 02:08:09,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:09,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-21 02:08:09,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:09,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-21 02:08:09,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:09,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-21 02:08:09,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:09,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-21 02:08:09,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:09,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-21 02:08:09,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:09,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-12-21 02:08:09,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:09,602 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-12-21 02:08:09,603 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 02:08:09,603 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [231371074] [2023-12-21 02:08:09,603 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [231371074] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 02:08:09,603 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 02:08:09,603 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-12-21 02:08:09,603 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1247566548] [2023-12-21 02:08:09,603 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 02:08:09,603 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-12-21 02:08:09,603 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 02:08:09,604 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-12-21 02:08:09,604 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2023-12-21 02:08:09,604 INFO L87 Difference]: Start difference. First operand 3023 states and 3617 transitions. Second operand has 12 states, 12 states have (on average 5.416666666666667) internal successors, (65), 12 states have internal predecessors, (65), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2023-12-21 02:08:10,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 02:08:10,601 INFO L93 Difference]: Finished difference Result 4762 states and 5687 transitions. [2023-12-21 02:08:10,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-21 02:08:10,601 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 5.416666666666667) internal successors, (65), 12 states have internal predecessors, (65), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 162 [2023-12-21 02:08:10,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 02:08:10,604 INFO L225 Difference]: With dead ends: 4762 [2023-12-21 02:08:10,604 INFO L226 Difference]: Without dead ends: 3390 [2023-12-21 02:08:10,606 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=112, Invalid=350, Unknown=0, NotChecked=0, Total=462 [2023-12-21 02:08:10,607 INFO L413 NwaCegarLoop]: 179 mSDtfsCounter, 285 mSDsluCounter, 903 mSDsCounter, 0 mSdLazyCounter, 599 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 285 SdHoareTripleChecker+Valid, 1082 SdHoareTripleChecker+Invalid, 634 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 599 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-21 02:08:10,608 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [285 Valid, 1082 Invalid, 634 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 599 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-21 02:08:10,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3390 states. [2023-12-21 02:08:10,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3390 to 3247. [2023-12-21 02:08:10,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3247 states, 3052 states have (on average 1.1831585845347312) internal successors, (3611), 3052 states have internal predecessors, (3611), 140 states have call successors, (140), 54 states have call predecessors, (140), 54 states have return successors, (140), 140 states have call predecessors, (140), 140 states have call successors, (140) [2023-12-21 02:08:10,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3247 states to 3247 states and 3891 transitions. [2023-12-21 02:08:10,933 INFO L78 Accepts]: Start accepts. Automaton has 3247 states and 3891 transitions. Word has length 162 [2023-12-21 02:08:10,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 02:08:10,933 INFO L495 AbstractCegarLoop]: Abstraction has 3247 states and 3891 transitions. [2023-12-21 02:08:10,933 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 5.416666666666667) internal successors, (65), 12 states have internal predecessors, (65), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2023-12-21 02:08:10,933 INFO L276 IsEmpty]: Start isEmpty. Operand 3247 states and 3891 transitions. [2023-12-21 02:08:10,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2023-12-21 02:08:10,935 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 02:08:10,935 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:08:10,935 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2023-12-21 02:08:10,935 INFO L420 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 02:08:10,935 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 02:08:10,935 INFO L85 PathProgramCache]: Analyzing trace with hash 12733747, now seen corresponding path program 1 times [2023-12-21 02:08:10,935 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 02:08:10,935 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1528143627] [2023-12-21 02:08:10,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:08:10,936 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 02:08:10,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:11,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 02:08:11,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:11,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 02:08:11,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:11,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 02:08:11,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:11,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 02:08:11,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:11,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-21 02:08:11,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:11,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 02:08:11,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:11,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-21 02:08:11,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:11,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 02:08:11,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:11,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 02:08:11,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:11,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 02:08:11,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:11,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-21 02:08:11,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:11,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 02:08:11,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:11,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-21 02:08:11,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:11,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-21 02:08:11,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:11,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-21 02:08:11,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:11,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-21 02:08:11,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:11,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-21 02:08:11,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:11,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-21 02:08:11,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:11,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-21 02:08:11,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:11,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-12-21 02:08:11,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:11,262 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-12-21 02:08:11,262 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 02:08:11,262 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1528143627] [2023-12-21 02:08:11,262 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1528143627] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 02:08:11,262 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 02:08:11,262 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-21 02:08:11,262 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1270440756] [2023-12-21 02:08:11,262 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 02:08:11,262 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-21 02:08:11,262 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 02:08:11,263 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-21 02:08:11,263 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2023-12-21 02:08:11,263 INFO L87 Difference]: Start difference. First operand 3247 states and 3891 transitions. Second operand has 10 states, 10 states have (on average 6.5) internal successors, (65), 10 states have internal predecessors, (65), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2023-12-21 02:08:12,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 02:08:12,032 INFO L93 Difference]: Finished difference Result 6193 states and 7384 transitions. [2023-12-21 02:08:12,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-21 02:08:12,032 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 6.5) internal successors, (65), 10 states have internal predecessors, (65), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 162 [2023-12-21 02:08:12,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 02:08:12,035 INFO L225 Difference]: With dead ends: 6193 [2023-12-21 02:08:12,035 INFO L226 Difference]: Without dead ends: 3525 [2023-12-21 02:08:12,039 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=177, Unknown=0, NotChecked=0, Total=240 [2023-12-21 02:08:12,039 INFO L413 NwaCegarLoop]: 186 mSDtfsCounter, 289 mSDsluCounter, 484 mSDsCounter, 0 mSdLazyCounter, 483 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 289 SdHoareTripleChecker+Valid, 670 SdHoareTripleChecker+Invalid, 536 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 483 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-21 02:08:12,040 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [289 Valid, 670 Invalid, 536 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 483 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-21 02:08:12,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3525 states. [2023-12-21 02:08:12,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3525 to 3311. [2023-12-21 02:08:12,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3311 states, 3116 states have (on average 1.1781129653401796) internal successors, (3671), 3116 states have internal predecessors, (3671), 140 states have call successors, (140), 54 states have call predecessors, (140), 54 states have return successors, (140), 140 states have call predecessors, (140), 140 states have call successors, (140) [2023-12-21 02:08:12,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3311 states to 3311 states and 3951 transitions. [2023-12-21 02:08:12,361 INFO L78 Accepts]: Start accepts. Automaton has 3311 states and 3951 transitions. Word has length 162 [2023-12-21 02:08:12,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 02:08:12,362 INFO L495 AbstractCegarLoop]: Abstraction has 3311 states and 3951 transitions. [2023-12-21 02:08:12,362 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.5) internal successors, (65), 10 states have internal predecessors, (65), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2023-12-21 02:08:12,362 INFO L276 IsEmpty]: Start isEmpty. Operand 3311 states and 3951 transitions. [2023-12-21 02:08:12,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2023-12-21 02:08:12,363 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 02:08:12,363 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:08:12,364 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2023-12-21 02:08:12,364 INFO L420 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 02:08:12,364 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 02:08:12,364 INFO L85 PathProgramCache]: Analyzing trace with hash -2070917814, now seen corresponding path program 1 times [2023-12-21 02:08:12,364 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 02:08:12,364 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [551717279] [2023-12-21 02:08:12,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:08:12,364 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 02:08:12,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:12,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 02:08:12,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:12,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 02:08:12,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:12,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 02:08:12,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:12,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 02:08:12,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:12,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-21 02:08:12,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:12,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 02:08:12,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:12,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-21 02:08:12,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:12,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 02:08:12,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:12,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 02:08:12,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:12,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 02:08:12,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:12,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-21 02:08:12,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:12,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 02:08:12,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:12,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-21 02:08:12,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:12,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-21 02:08:12,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:12,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-21 02:08:12,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:12,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-21 02:08:12,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:12,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-21 02:08:12,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:12,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-21 02:08:12,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:12,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-21 02:08:12,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:12,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-12-21 02:08:12,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:12,830 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-12-21 02:08:12,830 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 02:08:12,830 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [551717279] [2023-12-21 02:08:12,830 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [551717279] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 02:08:12,830 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 02:08:12,830 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2023-12-21 02:08:12,830 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1839322877] [2023-12-21 02:08:12,830 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 02:08:12,831 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-12-21 02:08:12,831 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 02:08:12,831 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-12-21 02:08:12,831 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=145, Unknown=0, NotChecked=0, Total=182 [2023-12-21 02:08:12,831 INFO L87 Difference]: Start difference. First operand 3311 states and 3951 transitions. Second operand has 14 states, 14 states have (on average 4.642857142857143) internal successors, (65), 14 states have internal predecessors, (65), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2023-12-21 02:08:13,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 02:08:13,864 INFO L93 Difference]: Finished difference Result 6766 states and 8035 transitions. [2023-12-21 02:08:13,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-12-21 02:08:13,865 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 4.642857142857143) internal successors, (65), 14 states have internal predecessors, (65), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 162 [2023-12-21 02:08:13,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 02:08:13,869 INFO L225 Difference]: With dead ends: 6766 [2023-12-21 02:08:13,869 INFO L226 Difference]: Without dead ends: 5182 [2023-12-21 02:08:13,870 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 103 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=154, Invalid=548, Unknown=0, NotChecked=0, Total=702 [2023-12-21 02:08:13,871 INFO L413 NwaCegarLoop]: 247 mSDtfsCounter, 354 mSDsluCounter, 1433 mSDsCounter, 0 mSdLazyCounter, 1042 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 354 SdHoareTripleChecker+Valid, 1680 SdHoareTripleChecker+Invalid, 1052 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 1042 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-21 02:08:13,871 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [354 Valid, 1680 Invalid, 1052 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 1042 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-21 02:08:13,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5182 states. [2023-12-21 02:08:14,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5182 to 3547. [2023-12-21 02:08:14,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3547 states, 3352 states have (on average 1.1763126491646778) internal successors, (3943), 3352 states have internal predecessors, (3943), 140 states have call successors, (140), 54 states have call predecessors, (140), 54 states have return successors, (140), 140 states have call predecessors, (140), 140 states have call successors, (140) [2023-12-21 02:08:14,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3547 states to 3547 states and 4223 transitions. [2023-12-21 02:08:14,204 INFO L78 Accepts]: Start accepts. Automaton has 3547 states and 4223 transitions. Word has length 162 [2023-12-21 02:08:14,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 02:08:14,204 INFO L495 AbstractCegarLoop]: Abstraction has 3547 states and 4223 transitions. [2023-12-21 02:08:14,204 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 4.642857142857143) internal successors, (65), 14 states have internal predecessors, (65), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2023-12-21 02:08:14,204 INFO L276 IsEmpty]: Start isEmpty. Operand 3547 states and 4223 transitions. [2023-12-21 02:08:14,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2023-12-21 02:08:14,206 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 02:08:14,206 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:08:14,206 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2023-12-21 02:08:14,208 INFO L420 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 02:08:14,208 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 02:08:14,208 INFO L85 PathProgramCache]: Analyzing trace with hash 229904776, now seen corresponding path program 1 times [2023-12-21 02:08:14,208 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 02:08:14,208 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [57747546] [2023-12-21 02:08:14,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:08:14,208 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 02:08:14,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:17,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 02:08:17,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:17,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 02:08:17,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:17,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 02:08:17,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:17,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 02:08:17,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:17,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-21 02:08:17,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:17,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 02:08:17,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:17,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-21 02:08:17,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:17,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 02:08:17,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:17,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 02:08:17,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:17,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 02:08:17,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:17,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-21 02:08:17,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:17,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 02:08:17,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:17,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-21 02:08:17,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:17,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-21 02:08:17,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:17,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-21 02:08:17,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:17,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-21 02:08:17,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:17,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-21 02:08:17,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:17,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-21 02:08:17,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:17,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-21 02:08:17,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:17,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-12-21 02:08:17,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:17,273 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-12-21 02:08:17,274 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 02:08:17,274 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [57747546] [2023-12-21 02:08:17,274 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [57747546] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 02:08:17,274 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 02:08:17,274 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2023-12-21 02:08:17,274 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1199952910] [2023-12-21 02:08:17,274 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 02:08:17,274 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-12-21 02:08:17,274 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 02:08:17,275 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-12-21 02:08:17,275 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=587, Unknown=0, NotChecked=0, Total=650 [2023-12-21 02:08:17,275 INFO L87 Difference]: Start difference. First operand 3547 states and 4223 transitions. Second operand has 26 states, 25 states have (on average 2.6) internal successors, (65), 25 states have internal predecessors, (65), 6 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 6 states have call predecessors, (20), 6 states have call successors, (20) [2023-12-21 02:08:21,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 02:08:21,983 INFO L93 Difference]: Finished difference Result 6945 states and 8128 transitions. [2023-12-21 02:08:21,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2023-12-21 02:08:21,984 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 25 states have (on average 2.6) internal successors, (65), 25 states have internal predecessors, (65), 6 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 6 states have call predecessors, (20), 6 states have call successors, (20) Word has length 162 [2023-12-21 02:08:21,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 02:08:21,988 INFO L225 Difference]: With dead ends: 6945 [2023-12-21 02:08:21,988 INFO L226 Difference]: Without dead ends: 5243 [2023-12-21 02:08:21,991 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 820 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=721, Invalid=3061, Unknown=0, NotChecked=0, Total=3782 [2023-12-21 02:08:21,991 INFO L413 NwaCegarLoop]: 131 mSDtfsCounter, 1446 mSDsluCounter, 2047 mSDsCounter, 0 mSdLazyCounter, 1855 mSolverCounterSat, 372 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1446 SdHoareTripleChecker+Valid, 2178 SdHoareTripleChecker+Invalid, 2227 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 372 IncrementalHoareTripleChecker+Valid, 1855 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-12-21 02:08:21,991 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1446 Valid, 2178 Invalid, 2227 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [372 Valid, 1855 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-12-21 02:08:21,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5243 states. [2023-12-21 02:08:22,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5243 to 3597. [2023-12-21 02:08:22,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3597 states, 3402 states have (on average 1.1766607877718989) internal successors, (4003), 3402 states have internal predecessors, (4003), 140 states have call successors, (140), 54 states have call predecessors, (140), 54 states have return successors, (140), 140 states have call predecessors, (140), 140 states have call successors, (140) [2023-12-21 02:08:22,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3597 states to 3597 states and 4283 transitions. [2023-12-21 02:08:22,325 INFO L78 Accepts]: Start accepts. Automaton has 3597 states and 4283 transitions. Word has length 162 [2023-12-21 02:08:22,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 02:08:22,325 INFO L495 AbstractCegarLoop]: Abstraction has 3597 states and 4283 transitions. [2023-12-21 02:08:22,325 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 25 states have (on average 2.6) internal successors, (65), 25 states have internal predecessors, (65), 6 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 6 states have call predecessors, (20), 6 states have call successors, (20) [2023-12-21 02:08:22,325 INFO L276 IsEmpty]: Start isEmpty. Operand 3597 states and 4283 transitions. [2023-12-21 02:08:22,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2023-12-21 02:08:22,327 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 02:08:22,327 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:08:22,327 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2023-12-21 02:08:22,327 INFO L420 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 02:08:22,327 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 02:08:22,327 INFO L85 PathProgramCache]: Analyzing trace with hash 2004912138, now seen corresponding path program 1 times [2023-12-21 02:08:22,328 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 02:08:22,328 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [16608018] [2023-12-21 02:08:22,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:08:22,328 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 02:08:22,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:22,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 02:08:22,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:22,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 02:08:22,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:22,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 02:08:22,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:23,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 02:08:23,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:23,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-21 02:08:23,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:23,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 02:08:23,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:23,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-21 02:08:23,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:23,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 02:08:23,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:23,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 02:08:23,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:23,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 02:08:23,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:23,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-21 02:08:23,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:23,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 02:08:23,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:23,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-21 02:08:23,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:23,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-21 02:08:23,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:23,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-21 02:08:23,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:23,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-21 02:08:23,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:23,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-21 02:08:23,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:23,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-21 02:08:23,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:23,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-21 02:08:23,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:23,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-12-21 02:08:23,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:23,066 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-12-21 02:08:23,066 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 02:08:23,066 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [16608018] [2023-12-21 02:08:23,066 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [16608018] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 02:08:23,066 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 02:08:23,066 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-12-21 02:08:23,066 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [348264322] [2023-12-21 02:08:23,066 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 02:08:23,066 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-21 02:08:23,066 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 02:08:23,067 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-21 02:08:23,067 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2023-12-21 02:08:23,067 INFO L87 Difference]: Start difference. First operand 3597 states and 4283 transitions. Second operand has 11 states, 11 states have (on average 5.909090909090909) internal successors, (65), 11 states have internal predecessors, (65), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-21 02:08:23,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 02:08:23,845 INFO L93 Difference]: Finished difference Result 5432 states and 6455 transitions. [2023-12-21 02:08:23,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-21 02:08:23,846 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 5.909090909090909) internal successors, (65), 11 states have internal predecessors, (65), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 162 [2023-12-21 02:08:23,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 02:08:23,849 INFO L225 Difference]: With dead ends: 5432 [2023-12-21 02:08:23,849 INFO L226 Difference]: Without dead ends: 3730 [2023-12-21 02:08:23,851 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=64, Invalid=176, Unknown=0, NotChecked=0, Total=240 [2023-12-21 02:08:23,851 INFO L413 NwaCegarLoop]: 141 mSDtfsCounter, 287 mSDsluCounter, 601 mSDsCounter, 0 mSdLazyCounter, 507 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 287 SdHoareTripleChecker+Valid, 742 SdHoareTripleChecker+Invalid, 529 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 507 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-21 02:08:23,852 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [287 Valid, 742 Invalid, 529 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 507 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-21 02:08:23,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3730 states. [2023-12-21 02:08:24,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3730 to 3537. [2023-12-21 02:08:24,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3537 states, 3342 states have (on average 1.1786355475763015) internal successors, (3939), 3342 states have internal predecessors, (3939), 140 states have call successors, (140), 54 states have call predecessors, (140), 54 states have return successors, (140), 140 states have call predecessors, (140), 140 states have call successors, (140) [2023-12-21 02:08:24,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3537 states to 3537 states and 4219 transitions. [2023-12-21 02:08:24,181 INFO L78 Accepts]: Start accepts. Automaton has 3537 states and 4219 transitions. Word has length 162 [2023-12-21 02:08:24,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 02:08:24,182 INFO L495 AbstractCegarLoop]: Abstraction has 3537 states and 4219 transitions. [2023-12-21 02:08:24,182 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 5.909090909090909) internal successors, (65), 11 states have internal predecessors, (65), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-21 02:08:24,182 INFO L276 IsEmpty]: Start isEmpty. Operand 3537 states and 4219 transitions. [2023-12-21 02:08:24,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2023-12-21 02:08:24,184 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 02:08:24,184 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:08:24,184 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2023-12-21 02:08:24,184 INFO L420 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 02:08:24,184 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 02:08:24,184 INFO L85 PathProgramCache]: Analyzing trace with hash 1616108170, now seen corresponding path program 1 times [2023-12-21 02:08:24,184 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 02:08:24,184 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [241328332] [2023-12-21 02:08:24,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:08:24,184 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 02:08:24,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:24,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 02:08:24,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:24,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 02:08:24,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:24,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 02:08:24,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:24,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 02:08:24,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:24,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-21 02:08:24,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:24,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 02:08:24,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:24,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-21 02:08:24,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:24,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 02:08:24,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:24,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 02:08:24,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:24,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 02:08:24,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:24,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-21 02:08:24,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:24,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 02:08:24,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:24,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-21 02:08:24,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:24,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-21 02:08:24,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:24,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-21 02:08:24,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:24,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-21 02:08:24,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:24,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-21 02:08:24,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:24,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-21 02:08:24,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:24,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-21 02:08:24,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:24,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-12-21 02:08:24,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:24,999 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-12-21 02:08:24,999 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 02:08:24,999 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [241328332] [2023-12-21 02:08:24,999 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [241328332] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 02:08:24,999 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 02:08:24,999 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2023-12-21 02:08:25,000 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1245235406] [2023-12-21 02:08:25,000 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 02:08:25,000 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-12-21 02:08:25,000 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 02:08:25,000 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-12-21 02:08:25,000 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2023-12-21 02:08:25,001 INFO L87 Difference]: Start difference. First operand 3537 states and 4219 transitions. Second operand has 13 states, 13 states have (on average 5.0) internal successors, (65), 13 states have internal predecessors, (65), 3 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2023-12-21 02:08:25,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 02:08:25,956 INFO L93 Difference]: Finished difference Result 5318 states and 6329 transitions. [2023-12-21 02:08:25,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-21 02:08:25,956 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 5.0) internal successors, (65), 13 states have internal predecessors, (65), 3 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) Word has length 162 [2023-12-21 02:08:25,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 02:08:25,960 INFO L225 Difference]: With dead ends: 5318 [2023-12-21 02:08:25,960 INFO L226 Difference]: Without dead ends: 3646 [2023-12-21 02:08:25,962 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=104, Invalid=316, Unknown=0, NotChecked=0, Total=420 [2023-12-21 02:08:25,962 INFO L413 NwaCegarLoop]: 196 mSDtfsCounter, 311 mSDsluCounter, 761 mSDsCounter, 0 mSdLazyCounter, 644 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 311 SdHoareTripleChecker+Valid, 957 SdHoareTripleChecker+Invalid, 687 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 644 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-21 02:08:25,963 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [311 Valid, 957 Invalid, 687 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 644 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-21 02:08:25,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3646 states. [2023-12-21 02:08:26,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3646 to 3507. [2023-12-21 02:08:26,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3507 states, 3312 states have (on average 1.1796497584541064) internal successors, (3907), 3312 states have internal predecessors, (3907), 140 states have call successors, (140), 54 states have call predecessors, (140), 54 states have return successors, (140), 140 states have call predecessors, (140), 140 states have call successors, (140) [2023-12-21 02:08:26,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3507 states to 3507 states and 4187 transitions. [2023-12-21 02:08:26,298 INFO L78 Accepts]: Start accepts. Automaton has 3507 states and 4187 transitions. Word has length 162 [2023-12-21 02:08:26,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 02:08:26,298 INFO L495 AbstractCegarLoop]: Abstraction has 3507 states and 4187 transitions. [2023-12-21 02:08:26,298 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 5.0) internal successors, (65), 13 states have internal predecessors, (65), 3 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2023-12-21 02:08:26,298 INFO L276 IsEmpty]: Start isEmpty. Operand 3507 states and 4187 transitions. [2023-12-21 02:08:26,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2023-12-21 02:08:26,300 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 02:08:26,300 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:08:26,300 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2023-12-21 02:08:26,300 INFO L420 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 02:08:26,301 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 02:08:26,301 INFO L85 PathProgramCache]: Analyzing trace with hash -1981280680, now seen corresponding path program 1 times [2023-12-21 02:08:26,301 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 02:08:26,301 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [389414998] [2023-12-21 02:08:26,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:08:26,301 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 02:08:26,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:26,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 02:08:26,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:26,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 02:08:26,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:26,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 02:08:26,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:26,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 02:08:26,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:26,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-21 02:08:26,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:26,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 02:08:26,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:26,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-21 02:08:26,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:26,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 02:08:26,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:26,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 02:08:26,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:26,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 02:08:26,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:26,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-21 02:08:26,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:26,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 02:08:26,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:26,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-21 02:08:26,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:26,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-21 02:08:26,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:26,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-21 02:08:26,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:26,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-21 02:08:26,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:26,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-21 02:08:26,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:26,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-21 02:08:26,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:26,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-21 02:08:26,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:26,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-12-21 02:08:26,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:26,675 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-12-21 02:08:26,675 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 02:08:26,675 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [389414998] [2023-12-21 02:08:26,675 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [389414998] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 02:08:26,676 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 02:08:26,676 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-12-21 02:08:26,676 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1624813187] [2023-12-21 02:08:26,676 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 02:08:26,677 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-21 02:08:26,677 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 02:08:26,678 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-21 02:08:26,678 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2023-12-21 02:08:26,678 INFO L87 Difference]: Start difference. First operand 3507 states and 4187 transitions. Second operand has 11 states, 11 states have (on average 6.0) internal successors, (66), 11 states have internal predecessors, (66), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2023-12-21 02:08:27,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 02:08:27,307 INFO L93 Difference]: Finished difference Result 6433 states and 7662 transitions. [2023-12-21 02:08:27,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-21 02:08:27,308 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 6.0) internal successors, (66), 11 states have internal predecessors, (66), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 163 [2023-12-21 02:08:27,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 02:08:27,312 INFO L225 Difference]: With dead ends: 6433 [2023-12-21 02:08:27,312 INFO L226 Difference]: Without dead ends: 4743 [2023-12-21 02:08:27,314 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=198, Unknown=0, NotChecked=0, Total=272 [2023-12-21 02:08:27,314 INFO L413 NwaCegarLoop]: 149 mSDtfsCounter, 321 mSDsluCounter, 490 mSDsCounter, 0 mSdLazyCounter, 481 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 321 SdHoareTripleChecker+Valid, 639 SdHoareTripleChecker+Invalid, 487 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 481 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-21 02:08:27,314 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [321 Valid, 639 Invalid, 487 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 481 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-21 02:08:27,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4743 states. [2023-12-21 02:08:27,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4743 to 3737. [2023-12-21 02:08:27,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3737 states, 3542 states have (on average 1.1758893280632412) internal successors, (4165), 3542 states have internal predecessors, (4165), 140 states have call successors, (140), 54 states have call predecessors, (140), 54 states have return successors, (140), 140 states have call predecessors, (140), 140 states have call successors, (140) [2023-12-21 02:08:27,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3737 states to 3737 states and 4445 transitions. [2023-12-21 02:08:27,645 INFO L78 Accepts]: Start accepts. Automaton has 3737 states and 4445 transitions. Word has length 163 [2023-12-21 02:08:27,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 02:08:27,646 INFO L495 AbstractCegarLoop]: Abstraction has 3737 states and 4445 transitions. [2023-12-21 02:08:27,646 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 6.0) internal successors, (66), 11 states have internal predecessors, (66), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2023-12-21 02:08:27,646 INFO L276 IsEmpty]: Start isEmpty. Operand 3737 states and 4445 transitions. [2023-12-21 02:08:27,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2023-12-21 02:08:27,648 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 02:08:27,648 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:08:27,648 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2023-12-21 02:08:27,648 INFO L420 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 02:08:27,648 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 02:08:27,649 INFO L85 PathProgramCache]: Analyzing trace with hash 319541910, now seen corresponding path program 1 times [2023-12-21 02:08:27,649 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 02:08:27,649 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [284432452] [2023-12-21 02:08:27,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:08:27,649 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 02:08:27,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:28,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 02:08:28,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:28,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 02:08:28,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:28,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 02:08:28,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:28,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 02:08:28,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:28,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-21 02:08:28,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:28,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 02:08:28,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:28,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-21 02:08:28,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:28,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 02:08:28,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:28,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 02:08:28,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:28,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 02:08:28,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:28,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-21 02:08:28,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:28,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 02:08:28,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:28,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-21 02:08:28,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:28,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-21 02:08:28,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:28,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-21 02:08:28,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:28,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-21 02:08:28,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:28,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-21 02:08:28,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:28,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-21 02:08:28,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:28,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-21 02:08:28,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:28,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-12-21 02:08:28,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:28,175 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-12-21 02:08:28,175 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 02:08:28,175 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [284432452] [2023-12-21 02:08:28,175 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [284432452] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 02:08:28,175 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 02:08:28,175 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-21 02:08:28,176 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [658182069] [2023-12-21 02:08:28,176 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 02:08:28,176 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-21 02:08:28,176 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 02:08:28,176 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-21 02:08:28,176 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2023-12-21 02:08:28,176 INFO L87 Difference]: Start difference. First operand 3737 states and 4445 transitions. Second operand has 9 states, 9 states have (on average 7.333333333333333) internal successors, (66), 9 states have internal predecessors, (66), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-21 02:08:28,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 02:08:28,934 INFO L93 Difference]: Finished difference Result 6668 states and 7912 transitions. [2023-12-21 02:08:28,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-21 02:08:28,935 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.333333333333333) internal successors, (66), 9 states have internal predecessors, (66), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 163 [2023-12-21 02:08:28,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 02:08:28,939 INFO L225 Difference]: With dead ends: 6668 [2023-12-21 02:08:28,939 INFO L226 Difference]: Without dead ends: 4802 [2023-12-21 02:08:28,942 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 42 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=58, Invalid=124, Unknown=0, NotChecked=0, Total=182 [2023-12-21 02:08:28,942 INFO L413 NwaCegarLoop]: 142 mSDtfsCounter, 361 mSDsluCounter, 468 mSDsCounter, 0 mSdLazyCounter, 379 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 361 SdHoareTripleChecker+Valid, 610 SdHoareTripleChecker+Invalid, 401 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 379 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-21 02:08:28,942 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [361 Valid, 610 Invalid, 401 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 379 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-21 02:08:28,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4802 states. [2023-12-21 02:08:29,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4802 to 3770. [2023-12-21 02:08:29,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3770 states, 3575 states have (on average 1.1633566433566433) internal successors, (4159), 3575 states have internal predecessors, (4159), 140 states have call successors, (140), 54 states have call predecessors, (140), 54 states have return successors, (140), 140 states have call predecessors, (140), 140 states have call successors, (140) [2023-12-21 02:08:29,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3770 states to 3770 states and 4439 transitions. [2023-12-21 02:08:29,280 INFO L78 Accepts]: Start accepts. Automaton has 3770 states and 4439 transitions. Word has length 163 [2023-12-21 02:08:29,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 02:08:29,280 INFO L495 AbstractCegarLoop]: Abstraction has 3770 states and 4439 transitions. [2023-12-21 02:08:29,280 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.333333333333333) internal successors, (66), 9 states have internal predecessors, (66), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-21 02:08:29,280 INFO L276 IsEmpty]: Start isEmpty. Operand 3770 states and 4439 transitions. [2023-12-21 02:08:29,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2023-12-21 02:08:29,282 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 02:08:29,283 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:08:29,283 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2023-12-21 02:08:29,283 INFO L420 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 02:08:29,283 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 02:08:29,283 INFO L85 PathProgramCache]: Analyzing trace with hash -1557633958, now seen corresponding path program 1 times [2023-12-21 02:08:29,283 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 02:08:29,283 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1471006439] [2023-12-21 02:08:29,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:08:29,283 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 02:08:29,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:29,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 02:08:29,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:29,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 02:08:29,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:29,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 02:08:29,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:29,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 02:08:29,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:29,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-21 02:08:29,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:29,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 02:08:29,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:29,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-21 02:08:29,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:29,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 02:08:29,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:29,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 02:08:29,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:29,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 02:08:29,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:29,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-21 02:08:29,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:29,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 02:08:29,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:29,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-21 02:08:29,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:29,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-21 02:08:29,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:29,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-21 02:08:29,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:29,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-21 02:08:29,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:29,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-21 02:08:29,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:29,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-21 02:08:29,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:29,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-21 02:08:29,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:29,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-12-21 02:08:29,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:29,937 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-12-21 02:08:29,937 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 02:08:29,937 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1471006439] [2023-12-21 02:08:29,937 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1471006439] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 02:08:29,938 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 02:08:29,938 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-21 02:08:29,938 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1779262463] [2023-12-21 02:08:29,938 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 02:08:29,938 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-21 02:08:29,938 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 02:08:29,938 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-21 02:08:29,939 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2023-12-21 02:08:29,939 INFO L87 Difference]: Start difference. First operand 3770 states and 4439 transitions. Second operand has 10 states, 10 states have (on average 6.6) internal successors, (66), 10 states have internal predecessors, (66), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2023-12-21 02:08:30,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 02:08:30,826 INFO L93 Difference]: Finished difference Result 6415 states and 7530 transitions. [2023-12-21 02:08:30,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-21 02:08:30,827 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 6.6) internal successors, (66), 10 states have internal predecessors, (66), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 163 [2023-12-21 02:08:30,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 02:08:30,830 INFO L225 Difference]: With dead ends: 6415 [2023-12-21 02:08:30,830 INFO L226 Difference]: Without dead ends: 4431 [2023-12-21 02:08:30,832 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=76, Invalid=164, Unknown=0, NotChecked=0, Total=240 [2023-12-21 02:08:30,832 INFO L413 NwaCegarLoop]: 215 mSDtfsCounter, 341 mSDsluCounter, 518 mSDsCounter, 0 mSdLazyCounter, 545 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 341 SdHoareTripleChecker+Valid, 733 SdHoareTripleChecker+Invalid, 583 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 545 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-21 02:08:30,832 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [341 Valid, 733 Invalid, 583 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 545 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-21 02:08:30,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4431 states. [2023-12-21 02:08:31,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4431 to 3592. [2023-12-21 02:08:31,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3592 states, 3397 states have (on average 1.1560200176626436) internal successors, (3927), 3397 states have internal predecessors, (3927), 140 states have call successors, (140), 54 states have call predecessors, (140), 54 states have return successors, (140), 140 states have call predecessors, (140), 140 states have call successors, (140) [2023-12-21 02:08:31,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3592 states to 3592 states and 4207 transitions. [2023-12-21 02:08:31,151 INFO L78 Accepts]: Start accepts. Automaton has 3592 states and 4207 transitions. Word has length 163 [2023-12-21 02:08:31,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 02:08:31,151 INFO L495 AbstractCegarLoop]: Abstraction has 3592 states and 4207 transitions. [2023-12-21 02:08:31,151 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.6) internal successors, (66), 10 states have internal predecessors, (66), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2023-12-21 02:08:31,152 INFO L276 IsEmpty]: Start isEmpty. Operand 3592 states and 4207 transitions. [2023-12-21 02:08:31,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2023-12-21 02:08:31,153 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 02:08:31,154 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:08:31,154 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2023-12-21 02:08:31,154 INFO L420 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 02:08:31,154 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 02:08:31,154 INFO L85 PathProgramCache]: Analyzing trace with hash 743188632, now seen corresponding path program 1 times [2023-12-21 02:08:31,154 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 02:08:31,154 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1874970089] [2023-12-21 02:08:31,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:08:31,154 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 02:08:31,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:31,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 02:08:31,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:31,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 02:08:31,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:31,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 02:08:31,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:31,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 02:08:31,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:31,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-21 02:08:31,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:31,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 02:08:31,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:31,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-21 02:08:31,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:31,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 02:08:31,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:31,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 02:08:31,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:31,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 02:08:31,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:31,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-21 02:08:31,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:31,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 02:08:31,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:31,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-21 02:08:31,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:31,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-21 02:08:31,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:31,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-21 02:08:31,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:31,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-21 02:08:31,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:31,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-21 02:08:31,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:31,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-21 02:08:31,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:31,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-21 02:08:31,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:31,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-12-21 02:08:31,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:31,499 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-12-21 02:08:31,499 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 02:08:31,499 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1874970089] [2023-12-21 02:08:31,499 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1874970089] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 02:08:31,499 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 02:08:31,499 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-21 02:08:31,499 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [791228131] [2023-12-21 02:08:31,499 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 02:08:31,500 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-21 02:08:31,500 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 02:08:31,500 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-21 02:08:31,500 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2023-12-21 02:08:31,500 INFO L87 Difference]: Start difference. First operand 3592 states and 4207 transitions. Second operand has 10 states, 10 states have (on average 6.6) internal successors, (66), 10 states have internal predecessors, (66), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2023-12-21 02:08:32,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 02:08:32,128 INFO L93 Difference]: Finished difference Result 6274 states and 7296 transitions. [2023-12-21 02:08:32,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-21 02:08:32,129 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 6.6) internal successors, (66), 10 states have internal predecessors, (66), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 163 [2023-12-21 02:08:32,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 02:08:32,132 INFO L225 Difference]: With dead ends: 6274 [2023-12-21 02:08:32,132 INFO L226 Difference]: Without dead ends: 4438 [2023-12-21 02:08:32,134 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2023-12-21 02:08:32,134 INFO L413 NwaCegarLoop]: 205 mSDtfsCounter, 285 mSDsluCounter, 592 mSDsCounter, 0 mSdLazyCounter, 527 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 285 SdHoareTripleChecker+Valid, 797 SdHoareTripleChecker+Invalid, 535 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 527 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-21 02:08:32,134 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [285 Valid, 797 Invalid, 535 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 527 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-21 02:08:32,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4438 states. [2023-12-21 02:08:32,467 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4438 to 3716. [2023-12-21 02:08:32,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3716 states, 3521 states have (on average 1.1403010508378302) internal successors, (4015), 3521 states have internal predecessors, (4015), 140 states have call successors, (140), 54 states have call predecessors, (140), 54 states have return successors, (140), 140 states have call predecessors, (140), 140 states have call successors, (140) [2023-12-21 02:08:32,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3716 states to 3716 states and 4295 transitions. [2023-12-21 02:08:32,472 INFO L78 Accepts]: Start accepts. Automaton has 3716 states and 4295 transitions. Word has length 163 [2023-12-21 02:08:32,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 02:08:32,472 INFO L495 AbstractCegarLoop]: Abstraction has 3716 states and 4295 transitions. [2023-12-21 02:08:32,473 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.6) internal successors, (66), 10 states have internal predecessors, (66), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2023-12-21 02:08:32,473 INFO L276 IsEmpty]: Start isEmpty. Operand 3716 states and 4295 transitions. [2023-12-21 02:08:32,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2023-12-21 02:08:32,475 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 02:08:32,475 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:08:32,475 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2023-12-21 02:08:32,475 INFO L420 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 02:08:32,475 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 02:08:32,475 INFO L85 PathProgramCache]: Analyzing trace with hash -355178230, now seen corresponding path program 1 times [2023-12-21 02:08:32,475 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 02:08:32,475 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [785893720] [2023-12-21 02:08:32,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:08:32,475 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 02:08:32,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:34,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 02:08:34,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:34,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 02:08:34,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:34,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 02:08:34,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:34,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 02:08:34,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:34,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-21 02:08:34,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:34,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 02:08:34,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:34,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-21 02:08:34,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:34,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 02:08:34,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:34,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 02:08:34,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:34,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 02:08:34,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:34,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-21 02:08:34,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:34,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 02:08:34,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:34,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-21 02:08:34,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:34,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-21 02:08:34,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:34,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-21 02:08:34,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:34,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-21 02:08:34,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:34,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-21 02:08:34,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:34,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-21 02:08:34,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:34,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-21 02:08:34,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:34,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-12-21 02:08:34,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:34,509 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 42 proven. 15 refuted. 0 times theorem prover too weak. 703 trivial. 0 not checked. [2023-12-21 02:08:34,509 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 02:08:34,509 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [785893720] [2023-12-21 02:08:34,509 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [785893720] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 02:08:34,509 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1703016768] [2023-12-21 02:08:34,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:08:34,509 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 02:08:34,509 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 02:08:34,510 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 02:08:34,512 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 02:08:34,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:34,761 INFO L262 TraceCheckSpWp]: Trace formula consists of 597 conjuncts, 43 conjunts are in the unsatisfiable core [2023-12-21 02:08:34,780 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 02:08:35,777 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 02:08:36,259 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 64 treesize of output 43 [2023-12-21 02:08:36,263 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-21 02:08:36,263 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 20 treesize of output 22 [2023-12-21 02:08:36,270 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-21 02:08:36,270 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 22 treesize of output 24 [2023-12-21 02:08:36,381 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-21 02:08:36,382 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-21 02:08:36,383 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-21 02:08:36,384 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 65 treesize of output 40 [2023-12-21 02:08:36,798 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-21 02:08:36,799 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 77 treesize of output 65 [2023-12-21 02:08:36,909 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 336 refuted. 0 times theorem prover too weak. 424 trivial. 0 not checked. [2023-12-21 02:08:36,909 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 02:08:38,883 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1703016768] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 02:08:38,883 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-21 02:08:38,884 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 11] total 27 [2023-12-21 02:08:38,884 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1838850950] [2023-12-21 02:08:38,884 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-21 02:08:38,884 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2023-12-21 02:08:38,884 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 02:08:38,885 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2023-12-21 02:08:38,885 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=104, Invalid=888, Unknown=0, NotChecked=0, Total=992 [2023-12-21 02:08:38,885 INFO L87 Difference]: Start difference. First operand 3716 states and 4295 transitions. Second operand has 27 states, 26 states have (on average 5.230769230769231) internal successors, (136), 26 states have internal predecessors, (136), 6 states have call successors, (40), 3 states have call predecessors, (40), 4 states have return successors, (40), 6 states have call predecessors, (40), 6 states have call successors, (40) [2023-12-21 02:08:44,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 02:08:44,415 INFO L93 Difference]: Finished difference Result 6755 states and 7779 transitions. [2023-12-21 02:08:44,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2023-12-21 02:08:44,415 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 26 states have (on average 5.230769230769231) internal successors, (136), 26 states have internal predecessors, (136), 6 states have call successors, (40), 3 states have call predecessors, (40), 4 states have return successors, (40), 6 states have call predecessors, (40), 6 states have call successors, (40) Word has length 165 [2023-12-21 02:08:44,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 02:08:44,419 INFO L225 Difference]: With dead ends: 6755 [2023-12-21 02:08:44,419 INFO L226 Difference]: Without dead ends: 4877 [2023-12-21 02:08:44,421 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 314 GetRequests, 243 SyntacticMatches, 2 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 932 ImplicationChecksByTransitivity, 4.5s TimeCoverageRelationStatistics Valid=868, Invalid=4102, Unknown=0, NotChecked=0, Total=4970 [2023-12-21 02:08:44,422 INFO L413 NwaCegarLoop]: 124 mSDtfsCounter, 1368 mSDsluCounter, 1637 mSDsCounter, 0 mSdLazyCounter, 2090 mSolverCounterSat, 435 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1368 SdHoareTripleChecker+Valid, 1761 SdHoareTripleChecker+Invalid, 2526 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 435 IncrementalHoareTripleChecker+Valid, 2090 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2023-12-21 02:08:44,422 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1368 Valid, 1761 Invalid, 2526 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [435 Valid, 2090 Invalid, 1 Unknown, 0 Unchecked, 1.7s Time] [2023-12-21 02:08:44,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4877 states. [2023-12-21 02:08:44,782 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4877 to 3253. [2023-12-21 02:08:44,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3253 states, 3073 states have (on average 1.135372600065083) internal successors, (3489), 3075 states have internal predecessors, (3489), 128 states have call successors, (128), 51 states have call predecessors, (128), 51 states have return successors, (128), 126 states have call predecessors, (128), 128 states have call successors, (128) [2023-12-21 02:08:44,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3253 states to 3253 states and 3745 transitions. [2023-12-21 02:08:44,787 INFO L78 Accepts]: Start accepts. Automaton has 3253 states and 3745 transitions. Word has length 165 [2023-12-21 02:08:44,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 02:08:44,787 INFO L495 AbstractCegarLoop]: Abstraction has 3253 states and 3745 transitions. [2023-12-21 02:08:44,788 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 26 states have (on average 5.230769230769231) internal successors, (136), 26 states have internal predecessors, (136), 6 states have call successors, (40), 3 states have call predecessors, (40), 4 states have return successors, (40), 6 states have call predecessors, (40), 6 states have call successors, (40) [2023-12-21 02:08:44,788 INFO L276 IsEmpty]: Start isEmpty. Operand 3253 states and 3745 transitions. [2023-12-21 02:08:44,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2023-12-21 02:08:44,790 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 02:08:44,790 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:08:44,800 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 02:08:44,990 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 02:08:44,991 INFO L420 AbstractCegarLoop]: === Iteration 56 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 02:08:44,991 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 02:08:44,991 INFO L85 PathProgramCache]: Analyzing trace with hash -1102775659, now seen corresponding path program 1 times [2023-12-21 02:08:44,991 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 02:08:44,991 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [557189513] [2023-12-21 02:08:44,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:08:44,991 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 02:08:45,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:45,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 02:08:45,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:45,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 02:08:45,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:45,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 02:08:45,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:45,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 02:08:45,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:45,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-21 02:08:45,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:45,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 02:08:45,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:45,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-21 02:08:45,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:45,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 02:08:45,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:45,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 02:08:45,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:45,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 02:08:45,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:45,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-21 02:08:45,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:45,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 02:08:45,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:45,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-21 02:08:45,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:45,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-21 02:08:45,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:45,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-21 02:08:45,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:45,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-21 02:08:45,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:45,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-21 02:08:45,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:45,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-21 02:08:45,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:45,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-21 02:08:45,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:45,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-12-21 02:08:45,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:45,503 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-12-21 02:08:45,503 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 02:08:45,503 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [557189513] [2023-12-21 02:08:45,503 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [557189513] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 02:08:45,503 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 02:08:45,504 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-12-21 02:08:45,504 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1021854815] [2023-12-21 02:08:45,504 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 02:08:45,504 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-21 02:08:45,504 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 02:08:45,504 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-21 02:08:45,504 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2023-12-21 02:08:45,505 INFO L87 Difference]: Start difference. First operand 3253 states and 3745 transitions. Second operand has 11 states, 11 states have (on average 6.2727272727272725) internal successors, (69), 11 states have internal predecessors, (69), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2023-12-21 02:08:46,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 02:08:46,338 INFO L93 Difference]: Finished difference Result 3712 states and 4260 transitions. [2023-12-21 02:08:46,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-21 02:08:46,338 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 6.2727272727272725) internal successors, (69), 11 states have internal predecessors, (69), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 166 [2023-12-21 02:08:46,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 02:08:46,343 INFO L225 Difference]: With dead ends: 3712 [2023-12-21 02:08:46,343 INFO L226 Difference]: Without dead ends: 3710 [2023-12-21 02:08:46,344 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 43 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=129, Invalid=333, Unknown=0, NotChecked=0, Total=462 [2023-12-21 02:08:46,344 INFO L413 NwaCegarLoop]: 132 mSDtfsCounter, 437 mSDsluCounter, 645 mSDsCounter, 0 mSdLazyCounter, 358 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 437 SdHoareTripleChecker+Valid, 777 SdHoareTripleChecker+Invalid, 418 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 358 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-21 02:08:46,344 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [437 Valid, 777 Invalid, 418 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 358 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-21 02:08:46,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3710 states. [2023-12-21 02:08:46,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3710 to 3468. [2023-12-21 02:08:46,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3468 states, 3288 states have (on average 1.1347323600973236) internal successors, (3731), 3290 states have internal predecessors, (3731), 128 states have call successors, (128), 51 states have call predecessors, (128), 51 states have return successors, (128), 126 states have call predecessors, (128), 128 states have call successors, (128) [2023-12-21 02:08:46,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3468 states to 3468 states and 3987 transitions. [2023-12-21 02:08:46,709 INFO L78 Accepts]: Start accepts. Automaton has 3468 states and 3987 transitions. Word has length 166 [2023-12-21 02:08:46,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 02:08:46,709 INFO L495 AbstractCegarLoop]: Abstraction has 3468 states and 3987 transitions. [2023-12-21 02:08:46,709 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 6.2727272727272725) internal successors, (69), 11 states have internal predecessors, (69), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2023-12-21 02:08:46,709 INFO L276 IsEmpty]: Start isEmpty. Operand 3468 states and 3987 transitions. [2023-12-21 02:08:46,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2023-12-21 02:08:46,711 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 02:08:46,711 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:08:46,711 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2023-12-21 02:08:46,712 INFO L420 AbstractCegarLoop]: === Iteration 57 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 02:08:46,712 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 02:08:46,712 INFO L85 PathProgramCache]: Analyzing trace with hash 1346824471, now seen corresponding path program 1 times [2023-12-21 02:08:46,712 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 02:08:46,712 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1481078678] [2023-12-21 02:08:46,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:08:46,712 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 02:08:46,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:47,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 02:08:47,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:47,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 02:08:47,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:47,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 02:08:47,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:47,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 02:08:47,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:47,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-21 02:08:47,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:47,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 02:08:47,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:47,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-21 02:08:47,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:47,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 02:08:47,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:47,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 02:08:47,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:47,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 02:08:47,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:47,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-21 02:08:47,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:47,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 02:08:47,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:47,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-21 02:08:47,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:47,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-21 02:08:47,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:47,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-21 02:08:47,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:47,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-21 02:08:47,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:47,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-21 02:08:47,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:47,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-21 02:08:47,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:47,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-21 02:08:47,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:47,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-12-21 02:08:47,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:08:47,490 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-12-21 02:08:47,490 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 02:08:47,491 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1481078678] [2023-12-21 02:08:47,491 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1481078678] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 02:08:47,491 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 02:08:47,491 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-12-21 02:08:47,491 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2106657468] [2023-12-21 02:08:47,491 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 02:08:47,491 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-21 02:08:47,491 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 02:08:47,491 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-21 02:08:47,492 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2023-12-21 02:08:47,492 INFO L87 Difference]: Start difference. First operand 3468 states and 3987 transitions. Second operand has 11 states, 10 states have (on average 6.9) internal successors, (69), 11 states have internal predecessors, (69), 3 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 2 states have call predecessors, (20), 3 states have call successors, (20) [2023-12-21 02:08:48,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 02:08:48,518 INFO L93 Difference]: Finished difference Result 5961 states and 6833 transitions. [2023-12-21 02:08:48,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-21 02:08:48,518 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 6.9) internal successors, (69), 11 states have internal predecessors, (69), 3 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 2 states have call predecessors, (20), 3 states have call successors, (20) Word has length 166 [2023-12-21 02:08:48,519 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 02:08:48,519 INFO L225 Difference]: With dead ends: 5961 [2023-12-21 02:08:48,519 INFO L226 Difference]: Without dead ends: 0 [2023-12-21 02:08:48,522 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 46 SyntacticMatches, 4 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=67, Invalid=205, Unknown=0, NotChecked=0, Total=272 [2023-12-21 02:08:48,523 INFO L413 NwaCegarLoop]: 174 mSDtfsCounter, 211 mSDsluCounter, 634 mSDsCounter, 0 mSdLazyCounter, 716 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 212 SdHoareTripleChecker+Valid, 808 SdHoareTripleChecker+Invalid, 751 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 716 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-21 02:08:48,523 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [212 Valid, 808 Invalid, 751 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 716 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-21 02:08:48,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-12-21 02:08:48,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-12-21 02:08:48,536 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 02:08:48,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-12-21 02:08:48,538 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 166 [2023-12-21 02:08:48,538 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 02:08:48,538 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-12-21 02:08:48,538 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 6.9) internal successors, (69), 11 states have internal predecessors, (69), 3 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 2 states have call predecessors, (20), 3 states have call successors, (20) [2023-12-21 02:08:48,538 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-12-21 02:08:48,539 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-12-21 02:08:48,541 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-21 02:08:48,541 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2023-12-21 02:08:48,542 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. Received shutdown request... [2023-12-21 02:20:53,848 WARN L619 AbstractCegarLoop]: Verification canceled: while PolyPacSimplificationTermWalker was simplifying a ∨-10-89-3-34-3-41-3-51-2-37-3-51-3-34-3-34-3-34-3-34-3-32-3-34-3-31-3-29-4-34-4-31-4-32-2-34-3-34-3-34-3-34-3-34-3-31-3-29-2-29-2-29-2-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∧-119-89-6-34-6-41-6-51-4-37-4-51-4-34-4-34-4-34-4-34-4-34-4-34-4-34-4-34-4-34-4-34-4-34-3-34-3-34-3-34-3-34-3-34-3-31-3-29-2-29-2-29-2-1 context. [2023-12-21 02:20:53,849 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-12-21 02:20:53,873 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 02:20:53,874 INFO L158 Benchmark]: Toolchain (without parser) took 835514.31ms. Allocated memory was 198.2MB in the beginning and 1.0GB in the end (delta: 832.6MB). Free memory was 162.1MB in the beginning and 951.9MB in the end (delta: -789.8MB). Peak memory consumption was 43.7MB. Max. memory is 8.0GB. [2023-12-21 02:20:53,874 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 198.2MB. Free memory was 152.4MB in the beginning and 152.4MB in the end (delta: 77.1kB). There was no memory consumed. Max. memory is 8.0GB. [2023-12-21 02:20:53,875 INFO L158 Benchmark]: CACSL2BoogieTranslator took 266.57ms. Allocated memory is still 198.2MB. Free memory was 161.7MB in the beginning and 146.4MB in the end (delta: 15.3MB). Peak memory consumption was 15.7MB. Max. memory is 8.0GB. [2023-12-21 02:20:53,875 INFO L158 Benchmark]: Boogie Procedure Inliner took 48.29ms. Allocated memory is still 198.2MB. Free memory was 146.4MB in the beginning and 142.8MB in the end (delta: 3.6MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2023-12-21 02:20:53,875 INFO L158 Benchmark]: Boogie Preprocessor took 44.28ms. Allocated memory is still 198.2MB. Free memory was 142.8MB in the beginning and 138.6MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2023-12-21 02:20:53,875 INFO L158 Benchmark]: RCFGBuilder took 508.24ms. Allocated memory is still 198.2MB. Free memory was 138.6MB in the beginning and 105.1MB in the end (delta: 33.5MB). Peak memory consumption was 33.6MB. Max. memory is 8.0GB. [2023-12-21 02:20:53,875 INFO L158 Benchmark]: TraceAbstraction took 834642.98ms. Allocated memory was 198.2MB in the beginning and 1.0GB in the end (delta: 832.6MB). Free memory was 104.4MB in the beginning and 951.9MB in the end (delta: -847.5MB). There was no memory consumed. Max. memory is 8.0GB. [2023-12-21 02:20:53,876 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 198.2MB. Free memory was 152.4MB in the beginning and 152.4MB in the end (delta: 77.1kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 266.57ms. Allocated memory is still 198.2MB. Free memory was 161.7MB in the beginning and 146.4MB in the end (delta: 15.3MB). Peak memory consumption was 15.7MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 48.29ms. Allocated memory is still 198.2MB. Free memory was 146.4MB in the beginning and 142.8MB in the end (delta: 3.6MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 44.28ms. Allocated memory is still 198.2MB. Free memory was 142.8MB in the beginning and 138.6MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * RCFGBuilder took 508.24ms. Allocated memory is still 198.2MB. Free memory was 138.6MB in the beginning and 105.1MB in the end (delta: 33.5MB). Peak memory consumption was 33.6MB. Max. memory is 8.0GB. * TraceAbstraction took 834642.98ms. Allocated memory was 198.2MB in the beginning and 1.0GB in the end (delta: 832.6MB). Free memory was 104.4MB in the beginning and 951.9MB in the end (delta: -847.5MB). There was no memory consumed. 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 ∨-10-89-3-34-3-41-3-51-2-37-3-51-3-34-3-34-3-34-3-34-3-32-3-34-3-31-3-29-4-34-4-31-4-32-2-34-3-34-3-34-3-34-3-34-3-31-3-29-2-29-2-29-2-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∧-64-89-7-34-10-41-10-51-8-37-10-51-10-34-10-34-18-34-34-34-34-34-34-34-31-34-29-34-29-34-29-34-4-34-3-34-3-34-3-34-3-34-3-34-3-31-3-29-2-29-2-29-2-1 context. RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown