/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.use.bitabs.translation false -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/hardness-nfm22/hardness_variablewrapping_wrapper-ap_file-71.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-16 04:23:09,625 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-16 04:23:09,701 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-12-16 04:23:09,705 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-16 04:23:09,705 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-16 04:23:09,733 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-16 04:23:09,734 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-16 04:23:09,734 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-16 04:23:09,734 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-16 04:23:09,735 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-16 04:23:09,735 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-16 04:23:09,735 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-16 04:23:09,736 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-16 04:23:09,736 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-16 04:23:09,737 INFO L153 SettingsManager]: * Use SBE=true [2023-12-16 04:23:09,737 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-16 04:23:09,737 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-16 04:23:09,738 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-16 04:23:09,738 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-16 04:23:09,738 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-16 04:23:09,738 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-16 04:23:09,739 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-16 04:23:09,739 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-16 04:23:09,740 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-16 04:23:09,740 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-16 04:23:09,740 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-16 04:23:09,741 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-16 04:23:09,741 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-16 04:23:09,741 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-16 04:23:09,742 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-16 04:23:09,742 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-16 04:23:09,742 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-16 04:23:09,742 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 04:23:09,743 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-16 04:23:09,743 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-16 04:23:09,743 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-16 04:23:09,744 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-16 04:23:09,744 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-16 04:23:09,744 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-16 04:23:09,745 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-16 04:23:09,745 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-16 04:23:09,746 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-16 04:23:09,746 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-16 04:23:09,746 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> false [2023-12-16 04:23:09,990 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-16 04:23:10,018 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-16 04:23:10,021 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-16 04:23:10,023 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-16 04:23:10,023 INFO L274 PluginConnector]: CDTParser initialized [2023-12-16 04:23:10,024 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_variablewrapping_wrapper-ap_file-71.i [2023-12-16 04:23:11,464 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-16 04:23:11,711 INFO L384 CDTParser]: Found 1 translation units. [2023-12-16 04:23:11,712 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_variablewrapping_wrapper-ap_file-71.i [2023-12-16 04:23:11,718 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9c33785f5/960d58aa558446f49ecf7ed4aa7aec99/FLAG291ea8529 [2023-12-16 04:23:11,730 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9c33785f5/960d58aa558446f49ecf7ed4aa7aec99 [2023-12-16 04:23:11,732 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-16 04:23:11,733 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-16 04:23:11,735 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-16 04:23:11,735 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-16 04:23:11,740 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-16 04:23:11,741 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 04:23:11" (1/1) ... [2023-12-16 04:23:11,742 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3292a0a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:23:11, skipping insertion in model container [2023-12-16 04:23:11,742 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 04:23:11" (1/1) ... [2023-12-16 04:23:11,781 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-16 04:23:11,929 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_variablewrapping_wrapper-ap_file-71.i[917,930] [2023-12-16 04:23:12,000 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 04:23:12,011 INFO L202 MainTranslator]: Completed pre-run [2023-12-16 04:23:12,025 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_variablewrapping_wrapper-ap_file-71.i[917,930] [2023-12-16 04:23:12,064 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 04:23:12,089 INFO L206 MainTranslator]: Completed translation [2023-12-16 04:23:12,090 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:23:12 WrapperNode [2023-12-16 04:23:12,090 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-16 04:23:12,091 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-16 04:23:12,091 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-16 04:23:12,091 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-16 04:23:12,097 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:23:12" (1/1) ... [2023-12-16 04:23:12,109 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:23:12" (1/1) ... [2023-12-16 04:23:12,157 INFO L138 Inliner]: procedures = 26, calls = 173, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 509 [2023-12-16 04:23:12,158 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-16 04:23:12,158 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-16 04:23:12,158 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-16 04:23:12,159 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-16 04:23:12,166 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:23:12" (1/1) ... [2023-12-16 04:23:12,166 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:23:12" (1/1) ... [2023-12-16 04:23:12,172 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:23:12" (1/1) ... [2023-12-16 04:23:12,195 INFO L175 MemorySlicer]: Split 138 memory accesses to 6 slices as follows [2, 20, 16, 85, 7, 8]. 62 percent of accesses are in the largest equivalence class. The 16 initializations are split as follows [2, 3, 3, 5, 1, 2]. The 18 writes are split as follows [0, 3, 3, 8, 1, 3]. [2023-12-16 04:23:12,195 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:23:12" (1/1) ... [2023-12-16 04:23:12,195 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:23:12" (1/1) ... [2023-12-16 04:23:12,225 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:23:12" (1/1) ... [2023-12-16 04:23:12,234 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:23:12" (1/1) ... [2023-12-16 04:23:12,238 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:23:12" (1/1) ... [2023-12-16 04:23:12,241 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:23:12" (1/1) ... [2023-12-16 04:23:12,247 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-16 04:23:12,248 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-16 04:23:12,248 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-16 04:23:12,248 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-16 04:23:12,249 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:23:12" (1/1) ... [2023-12-16 04:23:12,261 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 04:23:12,270 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 04:23:12,281 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-12-16 04:23:12,305 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-12-16 04:23:12,312 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-16 04:23:12,312 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2023-12-16 04:23:12,313 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2023-12-16 04:23:12,313 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2023-12-16 04:23:12,313 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2023-12-16 04:23:12,313 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2023-12-16 04:23:12,314 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2023-12-16 04:23:12,314 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2023-12-16 04:23:12,314 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2023-12-16 04:23:12,315 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2023-12-16 04:23:12,315 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2023-12-16 04:23:12,315 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2023-12-16 04:23:12,315 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2023-12-16 04:23:12,316 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-16 04:23:12,316 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-16 04:23:12,316 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-16 04:23:12,316 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-12-16 04:23:12,316 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2023-12-16 04:23:12,316 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2023-12-16 04:23:12,316 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2023-12-16 04:23:12,317 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2023-12-16 04:23:12,317 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-16 04:23:12,317 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-16 04:23:12,458 INFO L241 CfgBuilder]: Building ICFG [2023-12-16 04:23:12,460 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-16 04:23:12,947 INFO L282 CfgBuilder]: Performing block encoding [2023-12-16 04:23:13,002 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-16 04:23:13,003 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-16 04:23:13,004 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 04:23:13 BoogieIcfgContainer [2023-12-16 04:23:13,004 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-16 04:23:13,006 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-16 04:23:13,007 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-16 04:23:13,009 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-16 04:23:13,009 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 04:23:11" (1/3) ... [2023-12-16 04:23:13,010 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43f3457d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 04:23:13, skipping insertion in model container [2023-12-16 04:23:13,010 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:23:12" (2/3) ... [2023-12-16 04:23:13,010 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43f3457d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 04:23:13, skipping insertion in model container [2023-12-16 04:23:13,011 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 04:23:13" (3/3) ... [2023-12-16 04:23:13,012 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-ap_file-71.i [2023-12-16 04:23:13,024 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-16 04:23:13,025 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-16 04:23:13,061 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-16 04:23:13,066 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;@1304c756, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-16 04:23:13,067 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-16 04:23:13,070 INFO L276 IsEmpty]: Start isEmpty. Operand has 98 states, 76 states have (on average 1.4210526315789473) internal successors, (108), 77 states have internal predecessors, (108), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2023-12-16 04:23:13,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2023-12-16 04:23:13,089 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 04:23:13,090 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 04:23:13,090 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 04:23:13,094 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 04:23:13,094 INFO L85 PathProgramCache]: Analyzing trace with hash 139059872, now seen corresponding path program 1 times [2023-12-16 04:23:13,101 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 04:23:13,101 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1749998639] [2023-12-16 04:23:13,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:23:13,102 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 04:23:13,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:13,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 04:23:13,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:13,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 04:23:13,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:13,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 04:23:13,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:13,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-16 04:23:13,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:13,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-16 04:23:13,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:13,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-16 04:23:13,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:13,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-16 04:23:13,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:13,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-16 04:23:13,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:13,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-16 04:23:13,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:13,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-16 04:23:13,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:13,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-16 04:23:13,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:13,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-16 04:23:13,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:13,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-16 04:23:13,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:13,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-16 04:23:13,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:13,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-16 04:23:13,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:13,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-16 04:23:13,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:13,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-16 04:23:13,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:13,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-16 04:23:13,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:13,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-16 04:23:13,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:13,544 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2023-12-16 04:23:13,544 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 04:23:13,544 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1749998639] [2023-12-16 04:23:13,545 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1749998639] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 04:23:13,545 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 04:23:13,545 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 04:23:13,547 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [901423596] [2023-12-16 04:23:13,548 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 04:23:13,552 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-16 04:23:13,553 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 04:23:13,584 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-16 04:23:13,585 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-16 04:23:13,588 INFO L87 Difference]: Start difference. First operand has 98 states, 76 states have (on average 1.4210526315789473) internal successors, (108), 77 states have internal predecessors, (108), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) Second operand has 2 states, 2 states have (on average 23.5) internal successors, (47), 2 states have internal predecessors, (47), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2023-12-16 04:23:13,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 04:23:13,641 INFO L93 Difference]: Finished difference Result 193 states and 309 transitions. [2023-12-16 04:23:13,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-16 04:23:13,643 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 23.5) internal successors, (47), 2 states have internal predecessors, (47), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) Word has length 139 [2023-12-16 04:23:13,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 04:23:13,654 INFO L225 Difference]: With dead ends: 193 [2023-12-16 04:23:13,654 INFO L226 Difference]: Without dead ends: 96 [2023-12-16 04:23:13,657 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-16 04:23:13,661 INFO L413 NwaCegarLoop]: 135 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 135 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 04:23:13,662 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 135 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 04:23:13,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2023-12-16 04:23:13,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 96. [2023-12-16 04:23:13,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96 states, 75 states have (on average 1.3466666666666667) internal successors, (101), 75 states have internal predecessors, (101), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2023-12-16 04:23:13,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 139 transitions. [2023-12-16 04:23:13,699 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 139 transitions. Word has length 139 [2023-12-16 04:23:13,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 04:23:13,699 INFO L495 AbstractCegarLoop]: Abstraction has 96 states and 139 transitions. [2023-12-16 04:23:13,699 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 23.5) internal successors, (47), 2 states have internal predecessors, (47), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2023-12-16 04:23:13,700 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 139 transitions. [2023-12-16 04:23:13,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2023-12-16 04:23:13,705 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 04:23:13,705 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 04:23:13,705 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-16 04:23:13,706 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 04:23:13,706 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 04:23:13,706 INFO L85 PathProgramCache]: Analyzing trace with hash 1954629318, now seen corresponding path program 1 times [2023-12-16 04:23:13,706 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 04:23:13,707 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [751356731] [2023-12-16 04:23:13,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:23:13,707 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 04:23:13,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:13,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 04:23:13,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:13,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 04:23:13,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:13,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 04:23:13,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:13,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-16 04:23:13,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:13,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-16 04:23:13,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:13,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-16 04:23:13,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:13,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-16 04:23:13,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:13,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-16 04:23:13,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:13,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-16 04:23:13,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:13,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-16 04:23:13,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:13,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-16 04:23:13,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:14,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-16 04:23:14,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:14,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-16 04:23:14,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:14,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-16 04:23:14,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:14,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-16 04:23:14,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:14,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-16 04:23:14,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:14,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-16 04:23:14,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:14,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-16 04:23:14,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:14,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-16 04:23:14,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:14,042 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2023-12-16 04:23:14,043 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 04:23:14,043 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [751356731] [2023-12-16 04:23:14,044 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [751356731] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 04:23:14,044 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 04:23:14,044 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 04:23:14,044 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1379597248] [2023-12-16 04:23:14,045 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 04:23:14,047 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 04:23:14,050 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 04:23:14,051 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 04:23:14,052 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 04:23:14,052 INFO L87 Difference]: Start difference. First operand 96 states and 139 transitions. Second operand has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-12-16 04:23:14,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 04:23:14,123 INFO L93 Difference]: Finished difference Result 199 states and 288 transitions. [2023-12-16 04:23:14,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 04:23:14,124 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 139 [2023-12-16 04:23:14,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 04:23:14,126 INFO L225 Difference]: With dead ends: 199 [2023-12-16 04:23:14,126 INFO L226 Difference]: Without dead ends: 104 [2023-12-16 04:23:14,127 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 04:23:14,128 INFO L413 NwaCegarLoop]: 132 mSDtfsCounter, 12 mSDsluCounter, 261 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 393 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 04:23:14,128 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 393 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 04:23:14,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2023-12-16 04:23:14,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 98. [2023-12-16 04:23:14,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98 states, 77 states have (on average 1.3376623376623376) internal successors, (103), 77 states have internal predecessors, (103), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2023-12-16 04:23:14,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 141 transitions. [2023-12-16 04:23:14,142 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 141 transitions. Word has length 139 [2023-12-16 04:23:14,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 04:23:14,143 INFO L495 AbstractCegarLoop]: Abstraction has 98 states and 141 transitions. [2023-12-16 04:23:14,144 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-12-16 04:23:14,144 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 141 transitions. [2023-12-16 04:23:14,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2023-12-16 04:23:14,147 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 04:23:14,147 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 04:23:14,147 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-16 04:23:14,148 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 04:23:14,148 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 04:23:14,148 INFO L85 PathProgramCache]: Analyzing trace with hash 2011887620, now seen corresponding path program 1 times [2023-12-16 04:23:14,148 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 04:23:14,148 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [872614396] [2023-12-16 04:23:14,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:23:14,149 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 04:23:14,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:14,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 04:23:14,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:14,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 04:23:14,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:14,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 04:23:14,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:14,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-16 04:23:14,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:14,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-16 04:23:14,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:14,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-16 04:23:14,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:14,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-16 04:23:14,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:14,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-16 04:23:14,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:14,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-16 04:23:14,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:14,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-16 04:23:14,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:14,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-16 04:23:14,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:14,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-16 04:23:14,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:14,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-16 04:23:14,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:14,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-16 04:23:14,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:14,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-16 04:23:14,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:14,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-16 04:23:14,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:14,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-16 04:23:14,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:14,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-16 04:23:14,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:14,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-16 04:23:14,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:14,323 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2023-12-16 04:23:14,323 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 04:23:14,323 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [872614396] [2023-12-16 04:23:14,323 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [872614396] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 04:23:14,323 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 04:23:14,324 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 04:23:14,324 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [507416621] [2023-12-16 04:23:14,324 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 04:23:14,325 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 04:23:14,325 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 04:23:14,325 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 04:23:14,325 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 04:23:14,326 INFO L87 Difference]: Start difference. First operand 98 states and 141 transitions. Second operand has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-12-16 04:23:14,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 04:23:14,365 INFO L93 Difference]: Finished difference Result 199 states and 286 transitions. [2023-12-16 04:23:14,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 04:23:14,368 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 139 [2023-12-16 04:23:14,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 04:23:14,370 INFO L225 Difference]: With dead ends: 199 [2023-12-16 04:23:14,370 INFO L226 Difference]: Without dead ends: 102 [2023-12-16 04:23:14,371 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 04:23:14,372 INFO L413 NwaCegarLoop]: 133 mSDtfsCounter, 3 mSDsluCounter, 261 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 394 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 04:23:14,372 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 394 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 04:23:14,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2023-12-16 04:23:14,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 100. [2023-12-16 04:23:14,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100 states, 79 states have (on average 1.3291139240506329) internal successors, (105), 79 states have internal predecessors, (105), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2023-12-16 04:23:14,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 143 transitions. [2023-12-16 04:23:14,383 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 143 transitions. Word has length 139 [2023-12-16 04:23:14,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 04:23:14,383 INFO L495 AbstractCegarLoop]: Abstraction has 100 states and 143 transitions. [2023-12-16 04:23:14,384 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-12-16 04:23:14,384 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 143 transitions. [2023-12-16 04:23:14,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2023-12-16 04:23:14,387 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 04:23:14,387 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 04:23:14,387 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-16 04:23:14,388 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 04:23:14,388 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 04:23:14,388 INFO L85 PathProgramCache]: Analyzing trace with hash 2011947202, now seen corresponding path program 1 times [2023-12-16 04:23:14,389 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 04:23:14,389 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1574916047] [2023-12-16 04:23:14,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:23:14,389 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 04:23:14,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:14,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 04:23:14,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:14,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 04:23:14,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:14,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 04:23:14,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:14,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-16 04:23:14,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:14,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-16 04:23:14,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:14,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-16 04:23:14,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:14,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-16 04:23:14,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:14,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-16 04:23:14,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:14,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-16 04:23:14,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:14,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-16 04:23:14,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:14,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-16 04:23:14,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:14,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-16 04:23:14,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:14,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-16 04:23:14,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:14,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-16 04:23:14,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:14,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-16 04:23:14,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:14,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-16 04:23:14,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:14,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-16 04:23:14,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:14,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-16 04:23:14,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:14,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-16 04:23:14,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:14,780 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2023-12-16 04:23:14,780 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 04:23:14,780 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1574916047] [2023-12-16 04:23:14,780 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1574916047] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 04:23:14,780 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 04:23:14,781 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-16 04:23:14,781 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1814329047] [2023-12-16 04:23:14,781 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 04:23:14,783 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 04:23:14,783 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 04:23:14,783 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 04:23:14,783 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 04:23:14,784 INFO L87 Difference]: Start difference. First operand 100 states and 143 transitions. Second operand has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-12-16 04:23:14,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 04:23:14,895 INFO L93 Difference]: Finished difference Result 247 states and 352 transitions. [2023-12-16 04:23:14,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-16 04:23:14,896 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 139 [2023-12-16 04:23:14,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 04:23:14,902 INFO L225 Difference]: With dead ends: 247 [2023-12-16 04:23:14,902 INFO L226 Difference]: Without dead ends: 148 [2023-12-16 04:23:14,905 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-12-16 04:23:14,912 INFO L413 NwaCegarLoop]: 181 mSDtfsCounter, 91 mSDsluCounter, 446 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 627 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 04:23:14,912 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [91 Valid, 627 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 04:23:14,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2023-12-16 04:23:14,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 102. [2023-12-16 04:23:14,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102 states, 81 states have (on average 1.3209876543209877) internal successors, (107), 81 states have internal predecessors, (107), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2023-12-16 04:23:14,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 145 transitions. [2023-12-16 04:23:14,921 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 145 transitions. Word has length 139 [2023-12-16 04:23:14,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 04:23:14,921 INFO L495 AbstractCegarLoop]: Abstraction has 102 states and 145 transitions. [2023-12-16 04:23:14,921 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-12-16 04:23:14,922 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 145 transitions. [2023-12-16 04:23:14,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2023-12-16 04:23:14,923 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 04:23:14,924 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 04:23:14,930 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-16 04:23:14,930 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 04:23:14,930 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 04:23:14,930 INFO L85 PathProgramCache]: Analyzing trace with hash -230790985, now seen corresponding path program 1 times [2023-12-16 04:23:14,930 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 04:23:14,931 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [230236824] [2023-12-16 04:23:14,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:23:14,931 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 04:23:15,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:15,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 04:23:15,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:15,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 04:23:15,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:15,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 04:23:15,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:15,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-16 04:23:15,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:15,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-16 04:23:15,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:15,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-16 04:23:15,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:15,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-16 04:23:15,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:15,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-16 04:23:15,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:15,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-16 04:23:15,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:15,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-16 04:23:15,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:15,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-16 04:23:15,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:15,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-16 04:23:15,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:15,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-16 04:23:15,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:15,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-16 04:23:15,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:15,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-16 04:23:15,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:15,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-16 04:23:15,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:15,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-16 04:23:15,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:15,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-16 04:23:15,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:15,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-16 04:23:15,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:15,530 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2023-12-16 04:23:15,531 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 04:23:15,531 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [230236824] [2023-12-16 04:23:15,532 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [230236824] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 04:23:15,532 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 04:23:15,532 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 04:23:15,532 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1590470228] [2023-12-16 04:23:15,532 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 04:23:15,533 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 04:23:15,533 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 04:23:15,535 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 04:23:15,535 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-12-16 04:23:15,535 INFO L87 Difference]: Start difference. First operand 102 states and 145 transitions. Second operand has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 7 states have internal predecessors, (48), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-12-16 04:23:15,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 04:23:15,735 INFO L93 Difference]: Finished difference Result 297 states and 419 transitions. [2023-12-16 04:23:15,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-16 04:23:15,736 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 7 states have internal predecessors, (48), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 140 [2023-12-16 04:23:15,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 04:23:15,738 INFO L225 Difference]: With dead ends: 297 [2023-12-16 04:23:15,738 INFO L226 Difference]: Without dead ends: 196 [2023-12-16 04:23:15,740 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2023-12-16 04:23:15,742 INFO L413 NwaCegarLoop]: 182 mSDtfsCounter, 149 mSDsluCounter, 621 mSDsCounter, 0 mSdLazyCounter, 97 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 149 SdHoareTripleChecker+Valid, 803 SdHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 97 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 04:23:15,742 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [149 Valid, 803 Invalid, 101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 97 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 04:23:15,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 196 states. [2023-12-16 04:23:15,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 196 to 114. [2023-12-16 04:23:15,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 114 states, 93 states have (on average 1.3440860215053763) internal successors, (125), 93 states have internal predecessors, (125), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2023-12-16 04:23:15,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 163 transitions. [2023-12-16 04:23:15,763 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 163 transitions. Word has length 140 [2023-12-16 04:23:15,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 04:23:15,764 INFO L495 AbstractCegarLoop]: Abstraction has 114 states and 163 transitions. [2023-12-16 04:23:15,764 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 7 states have internal predecessors, (48), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-12-16 04:23:15,764 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 163 transitions. [2023-12-16 04:23:15,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2023-12-16 04:23:15,766 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 04:23:15,767 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 04:23:15,767 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-16 04:23:15,767 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 04:23:15,767 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 04:23:15,767 INFO L85 PathProgramCache]: Analyzing trace with hash -1580659255, now seen corresponding path program 1 times [2023-12-16 04:23:15,767 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 04:23:15,768 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [993377462] [2023-12-16 04:23:15,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:23:15,768 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 04:23:15,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:16,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 04:23:16,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:16,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 04:23:16,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:16,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 04:23:16,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:16,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-16 04:23:16,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:16,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-16 04:23:16,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:16,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-16 04:23:16,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:16,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-16 04:23:16,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:16,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-16 04:23:16,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:16,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-16 04:23:16,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:16,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-16 04:23:16,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:16,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-16 04:23:16,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:16,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-16 04:23:16,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:16,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-16 04:23:16,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:16,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-16 04:23:16,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:16,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-16 04:23:16,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:16,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-16 04:23:16,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:16,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-16 04:23:16,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:16,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-16 04:23:16,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:16,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-16 04:23:16,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:16,772 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2023-12-16 04:23:16,772 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 04:23:16,772 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [993377462] [2023-12-16 04:23:16,772 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [993377462] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 04:23:16,773 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 04:23:16,773 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-16 04:23:16,773 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [876142090] [2023-12-16 04:23:16,773 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 04:23:16,773 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-16 04:23:16,773 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 04:23:16,776 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-16 04:23:16,776 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2023-12-16 04:23:16,776 INFO L87 Difference]: Start difference. First operand 114 states and 163 transitions. Second operand has 9 states, 9 states have (on average 5.444444444444445) internal successors, (49), 9 states have internal predecessors, (49), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2023-12-16 04:23:17,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 04:23:17,312 INFO L93 Difference]: Finished difference Result 323 states and 457 transitions. [2023-12-16 04:23:17,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-16 04:23:17,313 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.444444444444445) internal successors, (49), 9 states have internal predecessors, (49), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 141 [2023-12-16 04:23:17,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 04:23:17,314 INFO L225 Difference]: With dead ends: 323 [2023-12-16 04:23:17,314 INFO L226 Difference]: Without dead ends: 210 [2023-12-16 04:23:17,315 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=69, Invalid=141, Unknown=0, NotChecked=0, Total=210 [2023-12-16 04:23:17,316 INFO L413 NwaCegarLoop]: 176 mSDtfsCounter, 327 mSDsluCounter, 550 mSDsCounter, 0 mSdLazyCounter, 359 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 327 SdHoareTripleChecker+Valid, 726 SdHoareTripleChecker+Invalid, 404 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 359 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-16 04:23:17,316 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [327 Valid, 726 Invalid, 404 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 359 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-16 04:23:17,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 210 states. [2023-12-16 04:23:17,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 210 to 187. [2023-12-16 04:23:17,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 187 states, 154 states have (on average 1.3311688311688312) internal successors, (205), 155 states have internal predecessors, (205), 30 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (30), 29 states have call predecessors, (30), 30 states have call successors, (30) [2023-12-16 04:23:17,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 187 states and 265 transitions. [2023-12-16 04:23:17,332 INFO L78 Accepts]: Start accepts. Automaton has 187 states and 265 transitions. Word has length 141 [2023-12-16 04:23:17,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 04:23:17,332 INFO L495 AbstractCegarLoop]: Abstraction has 187 states and 265 transitions. [2023-12-16 04:23:17,333 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.444444444444445) internal successors, (49), 9 states have internal predecessors, (49), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2023-12-16 04:23:17,333 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 265 transitions. [2023-12-16 04:23:17,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2023-12-16 04:23:17,334 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 04:23:17,335 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 04:23:17,335 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-12-16 04:23:17,335 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 04:23:17,335 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 04:23:17,335 INFO L85 PathProgramCache]: Analyzing trace with hash -1898131422, now seen corresponding path program 1 times [2023-12-16 04:23:17,336 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 04:23:17,336 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1341319289] [2023-12-16 04:23:17,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:23:17,336 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 04:23:17,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:17,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 04:23:17,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:17,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 04:23:17,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:17,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 04:23:17,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:17,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-16 04:23:17,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:17,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-16 04:23:17,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:17,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-16 04:23:17,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:17,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-16 04:23:17,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:17,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-16 04:23:17,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:17,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-16 04:23:17,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:17,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-16 04:23:17,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:17,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-16 04:23:17,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:17,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-16 04:23:17,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:17,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-16 04:23:17,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:17,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-16 04:23:17,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:17,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-16 04:23:17,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:17,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-16 04:23:17,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:17,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-16 04:23:17,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:17,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-16 04:23:17,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:17,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-16 04:23:17,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:17,587 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2023-12-16 04:23:17,587 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 04:23:17,587 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1341319289] [2023-12-16 04:23:17,587 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1341319289] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 04:23:17,588 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 04:23:17,588 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-16 04:23:17,588 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1049555819] [2023-12-16 04:23:17,588 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 04:23:17,588 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 04:23:17,588 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 04:23:17,589 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 04:23:17,589 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 04:23:17,589 INFO L87 Difference]: Start difference. First operand 187 states and 265 transitions. Second operand has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-12-16 04:23:17,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 04:23:17,656 INFO L93 Difference]: Finished difference Result 420 states and 590 transitions. [2023-12-16 04:23:17,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-16 04:23:17,656 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 141 [2023-12-16 04:23:17,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 04:23:17,659 INFO L225 Difference]: With dead ends: 420 [2023-12-16 04:23:17,659 INFO L226 Difference]: Without dead ends: 234 [2023-12-16 04:23:17,660 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-16 04:23:17,661 INFO L413 NwaCegarLoop]: 150 mSDtfsCounter, 98 mSDsluCounter, 389 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 539 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 04:23:17,661 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [98 Valid, 539 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 04:23:17,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 234 states. [2023-12-16 04:23:17,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 234 to 181. [2023-12-16 04:23:17,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 181 states, 148 states have (on average 1.3108108108108107) internal successors, (194), 149 states have internal predecessors, (194), 30 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (30), 29 states have call predecessors, (30), 30 states have call successors, (30) [2023-12-16 04:23:17,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 254 transitions. [2023-12-16 04:23:17,674 INFO L78 Accepts]: Start accepts. Automaton has 181 states and 254 transitions. Word has length 141 [2023-12-16 04:23:17,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 04:23:17,675 INFO L495 AbstractCegarLoop]: Abstraction has 181 states and 254 transitions. [2023-12-16 04:23:17,675 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-12-16 04:23:17,675 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 254 transitions. [2023-12-16 04:23:17,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2023-12-16 04:23:17,677 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 04:23:17,677 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 04:23:17,677 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-12-16 04:23:17,677 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 04:23:17,677 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 04:23:17,678 INFO L85 PathProgramCache]: Analyzing trace with hash -155774261, now seen corresponding path program 1 times [2023-12-16 04:23:17,678 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 04:23:17,678 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1599682353] [2023-12-16 04:23:17,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:23:17,678 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 04:23:17,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:17,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 04:23:17,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:17,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 04:23:17,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:17,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 04:23:17,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:17,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-16 04:23:17,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:17,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-16 04:23:17,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:17,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-16 04:23:17,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:17,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-16 04:23:17,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:17,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-16 04:23:17,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:17,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-16 04:23:17,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:17,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-16 04:23:17,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:17,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-16 04:23:17,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:17,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-16 04:23:17,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:17,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-16 04:23:17,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:17,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-16 04:23:17,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:17,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-16 04:23:17,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:17,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-16 04:23:17,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:17,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-16 04:23:17,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:17,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-16 04:23:17,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:17,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-16 04:23:17,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:17,923 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2023-12-16 04:23:17,923 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 04:23:17,923 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1599682353] [2023-12-16 04:23:17,923 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1599682353] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 04:23:17,923 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 04:23:17,923 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-16 04:23:17,924 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1172584015] [2023-12-16 04:23:17,924 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 04:23:17,924 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 04:23:17,924 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 04:23:17,925 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 04:23:17,925 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 04:23:17,925 INFO L87 Difference]: Start difference. First operand 181 states and 254 transitions. Second operand has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-12-16 04:23:17,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 04:23:17,987 INFO L93 Difference]: Finished difference Result 386 states and 538 transitions. [2023-12-16 04:23:17,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 04:23:17,987 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 142 [2023-12-16 04:23:17,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 04:23:17,989 INFO L225 Difference]: With dead ends: 386 [2023-12-16 04:23:17,998 INFO L226 Difference]: Without dead ends: 206 [2023-12-16 04:23:17,998 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-16 04:23:17,999 INFO L413 NwaCegarLoop]: 171 mSDtfsCounter, 88 mSDsluCounter, 401 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 572 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 04:23:17,999 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [88 Valid, 572 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 04:23:18,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 206 states. [2023-12-16 04:23:18,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 206 to 179. [2023-12-16 04:23:18,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 179 states, 146 states have (on average 1.2945205479452055) internal successors, (189), 147 states have internal predecessors, (189), 30 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (30), 29 states have call predecessors, (30), 30 states have call successors, (30) [2023-12-16 04:23:18,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 179 states and 249 transitions. [2023-12-16 04:23:18,011 INFO L78 Accepts]: Start accepts. Automaton has 179 states and 249 transitions. Word has length 142 [2023-12-16 04:23:18,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 04:23:18,012 INFO L495 AbstractCegarLoop]: Abstraction has 179 states and 249 transitions. [2023-12-16 04:23:18,012 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-12-16 04:23:18,012 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states and 249 transitions. [2023-12-16 04:23:18,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2023-12-16 04:23:18,013 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 04:23:18,013 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 04:23:18,014 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-12-16 04:23:18,014 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 04:23:18,014 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 04:23:18,014 INFO L85 PathProgramCache]: Analyzing trace with hash 908373051, now seen corresponding path program 1 times [2023-12-16 04:23:18,014 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 04:23:18,014 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [739981039] [2023-12-16 04:23:18,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:23:18,015 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 04:23:18,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:19,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 04:23:19,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:19,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 04:23:19,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:19,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 04:23:19,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:19,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-16 04:23:19,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:19,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-16 04:23:19,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:20,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-16 04:23:20,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:20,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-16 04:23:20,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:20,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-16 04:23:20,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:20,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-16 04:23:20,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:20,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-16 04:23:20,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:20,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-16 04:23:20,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:20,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-16 04:23:20,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:20,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-16 04:23:20,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:20,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-16 04:23:20,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:20,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-16 04:23:20,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:20,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-16 04:23:20,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:20,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-16 04:23:20,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:20,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-16 04:23:20,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:20,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-16 04:23:20,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:20,132 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2023-12-16 04:23:20,132 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 04:23:20,132 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [739981039] [2023-12-16 04:23:20,132 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [739981039] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 04:23:20,132 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 04:23:20,132 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2023-12-16 04:23:20,133 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [423755380] [2023-12-16 04:23:20,133 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 04:23:20,133 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-12-16 04:23:20,133 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 04:23:20,134 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-12-16 04:23:20,134 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2023-12-16 04:23:20,134 INFO L87 Difference]: Start difference. First operand 179 states and 249 transitions. Second operand has 14 states, 13 states have (on average 3.8461538461538463) internal successors, (50), 13 states have internal predecessors, (50), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2023-12-16 04:23:25,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 04:23:25,067 INFO L93 Difference]: Finished difference Result 558 states and 767 transitions. [2023-12-16 04:23:25,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-16 04:23:25,069 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 3.8461538461538463) internal successors, (50), 13 states have internal predecessors, (50), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) Word has length 142 [2023-12-16 04:23:25,069 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 04:23:25,071 INFO L225 Difference]: With dead ends: 558 [2023-12-16 04:23:25,071 INFO L226 Difference]: Without dead ends: 380 [2023-12-16 04:23:25,072 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 97 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=146, Invalid=504, Unknown=0, NotChecked=0, Total=650 [2023-12-16 04:23:25,072 INFO L413 NwaCegarLoop]: 96 mSDtfsCounter, 611 mSDsluCounter, 553 mSDsCounter, 0 mSdLazyCounter, 764 mSolverCounterSat, 144 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 611 SdHoareTripleChecker+Valid, 649 SdHoareTripleChecker+Invalid, 908 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 144 IncrementalHoareTripleChecker+Valid, 764 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2023-12-16 04:23:25,073 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [611 Valid, 649 Invalid, 908 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [144 Valid, 764 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2023-12-16 04:23:25,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 380 states. [2023-12-16 04:23:25,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 380 to 196. [2023-12-16 04:23:25,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 196 states, 163 states have (on average 1.3067484662576687) internal successors, (213), 164 states have internal predecessors, (213), 30 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (30), 29 states have call predecessors, (30), 30 states have call successors, (30) [2023-12-16 04:23:25,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 196 states to 196 states and 273 transitions. [2023-12-16 04:23:25,101 INFO L78 Accepts]: Start accepts. Automaton has 196 states and 273 transitions. Word has length 142 [2023-12-16 04:23:25,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 04:23:25,101 INFO L495 AbstractCegarLoop]: Abstraction has 196 states and 273 transitions. [2023-12-16 04:23:25,101 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 3.8461538461538463) internal successors, (50), 13 states have internal predecessors, (50), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2023-12-16 04:23:25,101 INFO L276 IsEmpty]: Start isEmpty. Operand 196 states and 273 transitions. [2023-12-16 04:23:25,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2023-12-16 04:23:25,103 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 04:23:25,103 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 04:23:25,103 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-12-16 04:23:25,103 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 04:23:25,104 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 04:23:25,104 INFO L85 PathProgramCache]: Analyzing trace with hash 1919490301, now seen corresponding path program 1 times [2023-12-16 04:23:25,104 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 04:23:25,104 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1039923340] [2023-12-16 04:23:25,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:23:25,105 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 04:23:25,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:25,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 04:23:25,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:25,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 04:23:25,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:25,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 04:23:25,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:25,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-16 04:23:25,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:25,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-16 04:23:25,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:25,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-16 04:23:25,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:25,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-16 04:23:25,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:25,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-16 04:23:25,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:25,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-16 04:23:25,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:25,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-16 04:23:25,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:25,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-16 04:23:25,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:25,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-16 04:23:25,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:25,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-16 04:23:25,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:25,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-16 04:23:25,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:25,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-16 04:23:25,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:26,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-16 04:23:26,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:26,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-16 04:23:26,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:26,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-16 04:23:26,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:26,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-16 04:23:26,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:26,016 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2023-12-16 04:23:26,016 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 04:23:26,016 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1039923340] [2023-12-16 04:23:26,017 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1039923340] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 04:23:26,017 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 04:23:26,017 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-12-16 04:23:26,017 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1155012529] [2023-12-16 04:23:26,017 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 04:23:26,018 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-16 04:23:26,018 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 04:23:26,019 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-16 04:23:26,019 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2023-12-16 04:23:26,019 INFO L87 Difference]: Start difference. First operand 196 states and 273 transitions. Second operand has 11 states, 11 states have (on average 4.545454545454546) internal successors, (50), 11 states have internal predecessors, (50), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2023-12-16 04:23:26,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 04:23:26,579 INFO L93 Difference]: Finished difference Result 472 states and 653 transitions. [2023-12-16 04:23:26,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-16 04:23:26,579 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 4.545454545454546) internal successors, (50), 11 states have internal predecessors, (50), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 142 [2023-12-16 04:23:26,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 04:23:26,584 INFO L225 Difference]: With dead ends: 472 [2023-12-16 04:23:26,584 INFO L226 Difference]: Without dead ends: 277 [2023-12-16 04:23:26,585 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=97, Invalid=245, Unknown=0, NotChecked=0, Total=342 [2023-12-16 04:23:26,585 INFO L413 NwaCegarLoop]: 150 mSDtfsCounter, 294 mSDsluCounter, 708 mSDsCounter, 0 mSdLazyCounter, 492 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 294 SdHoareTripleChecker+Valid, 858 SdHoareTripleChecker+Invalid, 515 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 492 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-16 04:23:26,586 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [294 Valid, 858 Invalid, 515 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 492 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-16 04:23:26,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 277 states. [2023-12-16 04:23:26,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 277 to 199. [2023-12-16 04:23:26,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 199 states, 166 states have (on average 1.3072289156626506) internal successors, (217), 167 states have internal predecessors, (217), 30 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (30), 29 states have call predecessors, (30), 30 states have call successors, (30) [2023-12-16 04:23:26,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 199 states and 277 transitions. [2023-12-16 04:23:26,633 INFO L78 Accepts]: Start accepts. Automaton has 199 states and 277 transitions. Word has length 142 [2023-12-16 04:23:26,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 04:23:26,636 INFO L495 AbstractCegarLoop]: Abstraction has 199 states and 277 transitions. [2023-12-16 04:23:26,636 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 4.545454545454546) internal successors, (50), 11 states have internal predecessors, (50), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2023-12-16 04:23:26,636 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 277 transitions. [2023-12-16 04:23:26,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2023-12-16 04:23:26,638 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 04:23:26,638 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 04:23:26,638 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-12-16 04:23:26,639 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 04:23:26,639 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 04:23:26,639 INFO L85 PathProgramCache]: Analyzing trace with hash 90724601, now seen corresponding path program 1 times [2023-12-16 04:23:26,639 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 04:23:26,639 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1057100854] [2023-12-16 04:23:26,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:23:26,640 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 04:23:26,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:28,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 04:23:28,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:28,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 04:23:28,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:28,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 04:23:28,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:28,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-16 04:23:28,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:28,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-16 04:23:28,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:28,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-16 04:23:28,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:28,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-16 04:23:28,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:28,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-16 04:23:28,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:28,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-16 04:23:28,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:28,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-16 04:23:28,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:28,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-16 04:23:28,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:28,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-16 04:23:28,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:28,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-16 04:23:28,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:28,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-16 04:23:28,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:28,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-16 04:23:28,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:28,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-16 04:23:28,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:28,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-16 04:23:28,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:28,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-16 04:23:28,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:28,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-16 04:23:28,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:28,324 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2023-12-16 04:23:28,325 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 04:23:28,325 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1057100854] [2023-12-16 04:23:28,325 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1057100854] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 04:23:28,325 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 04:23:28,325 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-12-16 04:23:28,325 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [140238587] [2023-12-16 04:23:28,325 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 04:23:28,326 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-12-16 04:23:28,326 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 04:23:28,326 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-12-16 04:23:28,327 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2023-12-16 04:23:28,327 INFO L87 Difference]: Start difference. First operand 199 states and 277 transitions. Second operand has 12 states, 11 states have (on average 4.545454545454546) internal successors, (50), 11 states have internal predecessors, (50), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2023-12-16 04:23:29,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 04:23:29,728 INFO L93 Difference]: Finished difference Result 499 states and 688 transitions. [2023-12-16 04:23:29,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-16 04:23:29,729 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 4.545454545454546) internal successors, (50), 11 states have internal predecessors, (50), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) Word has length 142 [2023-12-16 04:23:29,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 04:23:29,732 INFO L225 Difference]: With dead ends: 499 [2023-12-16 04:23:29,732 INFO L226 Difference]: Without dead ends: 301 [2023-12-16 04:23:29,733 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 40 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=101, Invalid=319, Unknown=0, NotChecked=0, Total=420 [2023-12-16 04:23:29,734 INFO L413 NwaCegarLoop]: 125 mSDtfsCounter, 243 mSDsluCounter, 592 mSDsCounter, 0 mSdLazyCounter, 713 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 243 SdHoareTripleChecker+Valid, 717 SdHoareTripleChecker+Invalid, 755 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 713 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-12-16 04:23:29,734 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [243 Valid, 717 Invalid, 755 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 713 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-12-16 04:23:29,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 301 states. [2023-12-16 04:23:29,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 301 to 193. [2023-12-16 04:23:29,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 193 states, 160 states have (on average 1.3) internal successors, (208), 161 states have internal predecessors, (208), 30 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (30), 29 states have call predecessors, (30), 30 states have call successors, (30) [2023-12-16 04:23:29,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 268 transitions. [2023-12-16 04:23:29,765 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 268 transitions. Word has length 142 [2023-12-16 04:23:29,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 04:23:29,765 INFO L495 AbstractCegarLoop]: Abstraction has 193 states and 268 transitions. [2023-12-16 04:23:29,766 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 4.545454545454546) internal successors, (50), 11 states have internal predecessors, (50), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2023-12-16 04:23:29,766 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 268 transitions. [2023-12-16 04:23:29,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2023-12-16 04:23:29,767 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 04:23:29,767 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 04:23:29,768 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-12-16 04:23:29,768 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 04:23:29,768 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 04:23:29,768 INFO L85 PathProgramCache]: Analyzing trace with hash 774359545, now seen corresponding path program 1 times [2023-12-16 04:23:29,768 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 04:23:29,768 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [377444525] [2023-12-16 04:23:29,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:23:29,769 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 04:23:29,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:30,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 04:23:30,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:30,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 04:23:30,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:30,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 04:23:30,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:30,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-16 04:23:30,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:30,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-16 04:23:30,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:30,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-16 04:23:30,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:30,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-16 04:23:30,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:30,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-16 04:23:30,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:30,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-16 04:23:30,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:30,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-16 04:23:30,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:30,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-16 04:23:30,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:30,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-16 04:23:30,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:30,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-16 04:23:30,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:30,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-16 04:23:30,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:30,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-16 04:23:30,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:30,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-16 04:23:30,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:30,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-16 04:23:30,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:30,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-16 04:23:30,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:30,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-16 04:23:30,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:30,080 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2023-12-16 04:23:30,081 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 04:23:30,081 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [377444525] [2023-12-16 04:23:30,081 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [377444525] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 04:23:30,081 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 04:23:30,081 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 04:23:30,081 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [156885232] [2023-12-16 04:23:30,081 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 04:23:30,082 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 04:23:30,082 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 04:23:30,082 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 04:23:30,083 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-16 04:23:30,083 INFO L87 Difference]: Start difference. First operand 193 states and 268 transitions. Second operand has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 7 states have internal predecessors, (50), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-12-16 04:23:30,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 04:23:30,301 INFO L93 Difference]: Finished difference Result 462 states and 638 transitions. [2023-12-16 04:23:30,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-16 04:23:30,302 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 7 states have internal predecessors, (50), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 142 [2023-12-16 04:23:30,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 04:23:30,304 INFO L225 Difference]: With dead ends: 462 [2023-12-16 04:23:30,304 INFO L226 Difference]: Without dead ends: 270 [2023-12-16 04:23:30,305 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=44, Invalid=88, Unknown=0, NotChecked=0, Total=132 [2023-12-16 04:23:30,305 INFO L413 NwaCegarLoop]: 187 mSDtfsCounter, 166 mSDsluCounter, 781 mSDsCounter, 0 mSdLazyCounter, 215 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 166 SdHoareTripleChecker+Valid, 968 SdHoareTripleChecker+Invalid, 216 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 215 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 04:23:30,306 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [166 Valid, 968 Invalid, 216 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 215 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 04:23:30,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 270 states. [2023-12-16 04:23:30,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 270 to 191. [2023-12-16 04:23:30,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 191 states, 158 states have (on average 1.3037974683544304) internal successors, (206), 159 states have internal predecessors, (206), 30 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (30), 29 states have call predecessors, (30), 30 states have call successors, (30) [2023-12-16 04:23:30,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 266 transitions. [2023-12-16 04:23:30,332 INFO L78 Accepts]: Start accepts. Automaton has 191 states and 266 transitions. Word has length 142 [2023-12-16 04:23:30,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 04:23:30,332 INFO L495 AbstractCegarLoop]: Abstraction has 191 states and 266 transitions. [2023-12-16 04:23:30,332 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 7 states have internal predecessors, (50), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-12-16 04:23:30,333 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 266 transitions. [2023-12-16 04:23:30,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2023-12-16 04:23:30,334 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 04:23:30,334 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 04:23:30,335 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-12-16 04:23:30,335 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 04:23:30,335 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 04:23:30,335 INFO L85 PathProgramCache]: Analyzing trace with hash 1785476795, now seen corresponding path program 1 times [2023-12-16 04:23:30,335 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 04:23:30,335 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1134145081] [2023-12-16 04:23:30,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:23:30,336 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 04:23:30,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:31,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 04:23:31,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:31,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 04:23:31,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:31,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 04:23:31,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:31,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-16 04:23:31,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:31,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-16 04:23:31,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:31,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-16 04:23:31,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:31,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-16 04:23:31,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:31,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-16 04:23:31,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:31,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-16 04:23:31,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:31,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-16 04:23:31,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:31,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-16 04:23:31,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:31,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-16 04:23:31,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:31,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-16 04:23:31,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:31,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-16 04:23:31,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:31,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-16 04:23:31,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:31,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-16 04:23:31,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:31,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-16 04:23:31,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:31,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-16 04:23:31,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:31,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-16 04:23:31,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:31,844 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2023-12-16 04:23:31,844 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 04:23:31,844 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1134145081] [2023-12-16 04:23:31,844 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1134145081] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 04:23:31,844 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 04:23:31,845 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2023-12-16 04:23:31,845 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [494743554] [2023-12-16 04:23:31,845 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 04:23:31,845 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-12-16 04:23:31,845 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 04:23:31,846 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-12-16 04:23:31,846 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2023-12-16 04:23:31,846 INFO L87 Difference]: Start difference. First operand 191 states and 266 transitions. Second operand has 13 states, 12 states have (on average 4.166666666666667) internal successors, (50), 12 states have internal predecessors, (50), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2023-12-16 04:23:34,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 04:23:34,838 INFO L93 Difference]: Finished difference Result 521 states and 716 transitions. [2023-12-16 04:23:34,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-16 04:23:34,841 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 4.166666666666667) internal successors, (50), 12 states have internal predecessors, (50), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) Word has length 142 [2023-12-16 04:23:34,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 04:23:34,842 INFO L225 Difference]: With dead ends: 521 [2023-12-16 04:23:34,842 INFO L226 Difference]: Without dead ends: 331 [2023-12-16 04:23:34,843 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 100 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=138, Invalid=462, Unknown=0, NotChecked=0, Total=600 [2023-12-16 04:23:34,844 INFO L413 NwaCegarLoop]: 168 mSDtfsCounter, 412 mSDsluCounter, 614 mSDsCounter, 0 mSdLazyCounter, 719 mSolverCounterSat, 93 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 412 SdHoareTripleChecker+Valid, 782 SdHoareTripleChecker+Invalid, 812 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 93 IncrementalHoareTripleChecker+Valid, 719 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2023-12-16 04:23:34,844 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [412 Valid, 782 Invalid, 812 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [93 Valid, 719 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2023-12-16 04:23:34,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 331 states. [2023-12-16 04:23:34,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 331 to 191. [2023-12-16 04:23:34,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 191 states, 158 states have (on average 1.2974683544303798) internal successors, (205), 159 states have internal predecessors, (205), 30 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (30), 29 states have call predecessors, (30), 30 states have call successors, (30) [2023-12-16 04:23:34,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 265 transitions. [2023-12-16 04:23:34,876 INFO L78 Accepts]: Start accepts. Automaton has 191 states and 265 transitions. Word has length 142 [2023-12-16 04:23:34,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 04:23:34,876 INFO L495 AbstractCegarLoop]: Abstraction has 191 states and 265 transitions. [2023-12-16 04:23:34,877 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 4.166666666666667) internal successors, (50), 12 states have internal predecessors, (50), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2023-12-16 04:23:34,877 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 265 transitions. [2023-12-16 04:23:34,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2023-12-16 04:23:34,878 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 04:23:34,878 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 04:23:34,878 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-12-16 04:23:34,879 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 04:23:34,879 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 04:23:34,879 INFO L85 PathProgramCache]: Analyzing trace with hash 427387022, now seen corresponding path program 1 times [2023-12-16 04:23:34,879 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 04:23:34,879 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1209259793] [2023-12-16 04:23:34,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:23:34,880 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 04:23:34,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:35,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 04:23:35,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:35,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 04:23:35,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:35,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 04:23:35,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:35,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-16 04:23:35,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:35,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-16 04:23:35,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:35,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-16 04:23:35,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:35,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-16 04:23:35,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:35,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-16 04:23:35,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:35,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-16 04:23:35,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:35,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-16 04:23:35,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:35,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-16 04:23:35,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:35,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-16 04:23:35,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:35,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-16 04:23:35,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:35,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-16 04:23:35,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:35,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-16 04:23:35,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:35,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-16 04:23:35,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:35,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-16 04:23:35,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:35,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-16 04:23:35,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:35,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-16 04:23:35,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:35,524 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2023-12-16 04:23:35,524 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 04:23:35,525 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1209259793] [2023-12-16 04:23:35,525 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1209259793] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 04:23:35,525 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 04:23:35,525 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-12-16 04:23:35,525 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [382905245] [2023-12-16 04:23:35,525 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 04:23:35,525 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-16 04:23:35,526 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 04:23:35,527 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-16 04:23:35,527 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2023-12-16 04:23:35,527 INFO L87 Difference]: Start difference. First operand 191 states and 265 transitions. Second operand has 11 states, 11 states have (on average 4.636363636363637) internal successors, (51), 11 states have internal predecessors, (51), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-12-16 04:23:36,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 04:23:36,446 INFO L93 Difference]: Finished difference Result 525 states and 724 transitions. [2023-12-16 04:23:36,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-16 04:23:36,446 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 4.636363636363637) internal successors, (51), 11 states have internal predecessors, (51), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 143 [2023-12-16 04:23:36,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 04:23:36,448 INFO L225 Difference]: With dead ends: 525 [2023-12-16 04:23:36,448 INFO L226 Difference]: Without dead ends: 335 [2023-12-16 04:23:36,449 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=97, Invalid=323, Unknown=0, NotChecked=0, Total=420 [2023-12-16 04:23:36,449 INFO L413 NwaCegarLoop]: 171 mSDtfsCounter, 315 mSDsluCounter, 882 mSDsCounter, 0 mSdLazyCounter, 877 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 315 SdHoareTripleChecker+Valid, 1053 SdHoareTripleChecker+Invalid, 902 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 877 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-16 04:23:36,450 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [315 Valid, 1053 Invalid, 902 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 877 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-16 04:23:36,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 335 states. [2023-12-16 04:23:36,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 335 to 209. [2023-12-16 04:23:36,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 209 states, 176 states have (on average 1.3068181818181819) internal successors, (230), 177 states have internal predecessors, (230), 30 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (30), 29 states have call predecessors, (30), 30 states have call successors, (30) [2023-12-16 04:23:36,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209 states to 209 states and 290 transitions. [2023-12-16 04:23:36,483 INFO L78 Accepts]: Start accepts. Automaton has 209 states and 290 transitions. Word has length 143 [2023-12-16 04:23:36,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 04:23:36,484 INFO L495 AbstractCegarLoop]: Abstraction has 209 states and 290 transitions. [2023-12-16 04:23:36,484 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 4.636363636363637) internal successors, (51), 11 states have internal predecessors, (51), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-12-16 04:23:36,484 INFO L276 IsEmpty]: Start isEmpty. Operand 209 states and 290 transitions. [2023-12-16 04:23:36,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2023-12-16 04:23:36,485 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 04:23:36,486 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 04:23:36,486 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-12-16 04:23:36,486 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 04:23:36,486 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 04:23:36,486 INFO L85 PathProgramCache]: Analyzing trace with hash -1296919881, now seen corresponding path program 1 times [2023-12-16 04:23:36,486 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 04:23:36,486 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1571749238] [2023-12-16 04:23:36,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:23:36,487 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 04:23:36,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:36,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 04:23:36,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:36,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 04:23:36,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:36,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 04:23:36,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:36,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-16 04:23:36,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:36,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-16 04:23:36,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:36,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-16 04:23:36,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:36,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-16 04:23:36,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:36,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-16 04:23:36,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:36,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-16 04:23:36,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:36,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-16 04:23:36,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:36,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-16 04:23:36,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:36,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-16 04:23:36,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:36,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-16 04:23:36,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:36,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-16 04:23:36,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:36,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-16 04:23:36,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:36,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-16 04:23:36,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:36,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-16 04:23:36,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:36,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-16 04:23:36,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:36,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-16 04:23:36,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:36,658 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2023-12-16 04:23:36,658 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 04:23:36,658 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1571749238] [2023-12-16 04:23:36,658 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1571749238] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 04:23:36,659 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 04:23:36,659 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-16 04:23:36,659 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [450146990] [2023-12-16 04:23:36,659 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 04:23:36,659 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 04:23:36,659 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 04:23:36,660 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 04:23:36,660 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 04:23:36,661 INFO L87 Difference]: Start difference. First operand 209 states and 290 transitions. Second operand has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-12-16 04:23:36,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 04:23:36,763 INFO L93 Difference]: Finished difference Result 497 states and 685 transitions. [2023-12-16 04:23:36,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-16 04:23:36,764 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 143 [2023-12-16 04:23:36,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 04:23:36,767 INFO L225 Difference]: With dead ends: 497 [2023-12-16 04:23:36,767 INFO L226 Difference]: Without dead ends: 289 [2023-12-16 04:23:36,769 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-12-16 04:23:36,770 INFO L413 NwaCegarLoop]: 158 mSDtfsCounter, 108 mSDsluCounter, 397 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 555 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 04:23:36,770 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [108 Valid, 555 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 04:23:36,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 289 states. [2023-12-16 04:23:36,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 289 to 215. [2023-12-16 04:23:36,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 215 states, 182 states have (on average 1.3021978021978022) internal successors, (237), 183 states have internal predecessors, (237), 30 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (30), 29 states have call predecessors, (30), 30 states have call successors, (30) [2023-12-16 04:23:36,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 215 states to 215 states and 297 transitions. [2023-12-16 04:23:36,804 INFO L78 Accepts]: Start accepts. Automaton has 215 states and 297 transitions. Word has length 143 [2023-12-16 04:23:36,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 04:23:36,806 INFO L495 AbstractCegarLoop]: Abstraction has 215 states and 297 transitions. [2023-12-16 04:23:36,806 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-12-16 04:23:36,806 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states and 297 transitions. [2023-12-16 04:23:36,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2023-12-16 04:23:36,807 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 04:23:36,807 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 04:23:36,807 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-12-16 04:23:36,808 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 04:23:36,808 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 04:23:36,808 INFO L85 PathProgramCache]: Analyzing trace with hash 765088973, now seen corresponding path program 1 times [2023-12-16 04:23:36,808 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 04:23:36,808 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2121970067] [2023-12-16 04:23:36,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:23:36,808 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 04:23:36,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:36,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 04:23:36,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:36,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 04:23:36,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:36,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 04:23:36,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:36,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-16 04:23:36,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:36,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-16 04:23:36,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:36,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-16 04:23:36,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:36,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-16 04:23:36,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:36,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-16 04:23:36,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:36,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-16 04:23:36,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:36,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-16 04:23:36,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:36,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-16 04:23:36,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:36,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-16 04:23:36,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:36,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-16 04:23:36,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:36,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-16 04:23:36,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:36,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-16 04:23:36,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:36,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-16 04:23:36,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:36,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-16 04:23:36,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:36,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-16 04:23:36,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:36,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-16 04:23:36,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:36,987 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2023-12-16 04:23:36,987 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 04:23:36,987 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2121970067] [2023-12-16 04:23:36,989 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2121970067] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 04:23:36,989 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 04:23:36,989 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-16 04:23:36,989 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [23549420] [2023-12-16 04:23:36,989 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 04:23:36,990 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 04:23:36,990 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 04:23:36,991 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 04:23:36,991 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 04:23:36,991 INFO L87 Difference]: Start difference. First operand 215 states and 297 transitions. Second operand has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-12-16 04:23:37,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 04:23:37,084 INFO L93 Difference]: Finished difference Result 473 states and 649 transitions. [2023-12-16 04:23:37,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-16 04:23:37,085 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 143 [2023-12-16 04:23:37,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 04:23:37,086 INFO L225 Difference]: With dead ends: 473 [2023-12-16 04:23:37,086 INFO L226 Difference]: Without dead ends: 259 [2023-12-16 04:23:37,087 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-12-16 04:23:37,087 INFO L413 NwaCegarLoop]: 158 mSDtfsCounter, 103 mSDsluCounter, 383 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 541 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 04:23:37,088 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [103 Valid, 541 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 04:23:37,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 259 states. [2023-12-16 04:23:37,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 259 to 215. [2023-12-16 04:23:37,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 215 states, 182 states have (on average 1.2967032967032968) internal successors, (236), 183 states have internal predecessors, (236), 30 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (30), 29 states have call predecessors, (30), 30 states have call successors, (30) [2023-12-16 04:23:37,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 215 states to 215 states and 296 transitions. [2023-12-16 04:23:37,154 INFO L78 Accepts]: Start accepts. Automaton has 215 states and 296 transitions. Word has length 143 [2023-12-16 04:23:37,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 04:23:37,155 INFO L495 AbstractCegarLoop]: Abstraction has 215 states and 296 transitions. [2023-12-16 04:23:37,155 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-12-16 04:23:37,155 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states and 296 transitions. [2023-12-16 04:23:37,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2023-12-16 04:23:37,156 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 04:23:37,156 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 04:23:37,157 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-12-16 04:23:37,157 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 04:23:37,157 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 04:23:37,157 INFO L85 PathProgramCache]: Analyzing trace with hash -255979381, now seen corresponding path program 1 times [2023-12-16 04:23:37,157 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 04:23:37,157 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [87231977] [2023-12-16 04:23:37,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:23:37,158 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 04:23:37,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:37,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 04:23:37,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:37,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 04:23:37,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:37,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 04:23:37,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:37,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-16 04:23:37,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:37,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-16 04:23:37,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:37,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-16 04:23:37,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:37,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-16 04:23:37,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:37,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-16 04:23:37,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:37,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-16 04:23:37,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:37,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-16 04:23:37,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:37,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-16 04:23:37,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:37,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-16 04:23:37,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:37,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-16 04:23:37,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:37,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-16 04:23:37,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:37,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-16 04:23:37,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:37,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-16 04:23:37,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:37,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-16 04:23:37,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:37,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-16 04:23:37,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:37,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-16 04:23:37,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:37,382 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2023-12-16 04:23:37,382 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 04:23:37,382 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [87231977] [2023-12-16 04:23:37,383 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [87231977] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 04:23:37,383 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 04:23:37,383 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-16 04:23:37,383 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2087180354] [2023-12-16 04:23:37,383 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 04:23:37,383 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 04:23:37,383 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 04:23:37,384 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 04:23:37,384 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 04:23:37,384 INFO L87 Difference]: Start difference. First operand 215 states and 296 transitions. Second operand has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-12-16 04:23:37,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 04:23:37,472 INFO L93 Difference]: Finished difference Result 447 states and 613 transitions. [2023-12-16 04:23:37,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 04:23:37,473 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 143 [2023-12-16 04:23:37,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 04:23:37,474 INFO L225 Difference]: With dead ends: 447 [2023-12-16 04:23:37,474 INFO L226 Difference]: Without dead ends: 233 [2023-12-16 04:23:37,475 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-16 04:23:37,476 INFO L413 NwaCegarLoop]: 160 mSDtfsCounter, 60 mSDsluCounter, 409 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 569 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 04:23:37,476 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 569 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 04:23:37,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 233 states. [2023-12-16 04:23:37,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 233 to 209. [2023-12-16 04:23:37,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 209 states, 176 states have (on average 1.2897727272727273) internal successors, (227), 177 states have internal predecessors, (227), 30 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (30), 29 states have call predecessors, (30), 30 states have call successors, (30) [2023-12-16 04:23:37,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209 states to 209 states and 287 transitions. [2023-12-16 04:23:37,506 INFO L78 Accepts]: Start accepts. Automaton has 209 states and 287 transitions. Word has length 143 [2023-12-16 04:23:37,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 04:23:37,507 INFO L495 AbstractCegarLoop]: Abstraction has 209 states and 287 transitions. [2023-12-16 04:23:37,507 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-12-16 04:23:37,507 INFO L276 IsEmpty]: Start isEmpty. Operand 209 states and 287 transitions. [2023-12-16 04:23:37,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2023-12-16 04:23:37,508 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 04:23:37,508 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 04:23:37,509 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-12-16 04:23:37,509 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 04:23:37,509 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 04:23:37,509 INFO L85 PathProgramCache]: Analyzing trace with hash -612589333, now seen corresponding path program 1 times [2023-12-16 04:23:37,509 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 04:23:37,510 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1599916401] [2023-12-16 04:23:37,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:23:37,510 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 04:23:37,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:38,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 04:23:38,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:38,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 04:23:38,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:38,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 04:23:38,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:38,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-16 04:23:38,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:38,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-16 04:23:38,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:38,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-16 04:23:38,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:38,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-16 04:23:38,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:38,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-16 04:23:38,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:38,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-16 04:23:38,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:38,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-16 04:23:38,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:38,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-16 04:23:38,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:38,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-16 04:23:38,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:38,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-16 04:23:38,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:38,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-16 04:23:38,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:38,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-16 04:23:38,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:38,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-16 04:23:38,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:38,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-16 04:23:38,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:38,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-16 04:23:38,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:38,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-16 04:23:38,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:38,545 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2023-12-16 04:23:38,545 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 04:23:38,545 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1599916401] [2023-12-16 04:23:38,545 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1599916401] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 04:23:38,545 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 04:23:38,545 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-12-16 04:23:38,545 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1923504206] [2023-12-16 04:23:38,545 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 04:23:38,546 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-16 04:23:38,546 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 04:23:38,546 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-16 04:23:38,546 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2023-12-16 04:23:38,547 INFO L87 Difference]: Start difference. First operand 209 states and 287 transitions. Second operand has 11 states, 11 states have (on average 4.7272727272727275) internal successors, (52), 11 states have internal predecessors, (52), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-12-16 04:23:40,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 04:23:40,283 INFO L93 Difference]: Finished difference Result 722 states and 987 transitions. [2023-12-16 04:23:40,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-12-16 04:23:40,284 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 4.7272727272727275) internal successors, (52), 11 states have internal predecessors, (52), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 144 [2023-12-16 04:23:40,284 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 04:23:40,296 INFO L225 Difference]: With dead ends: 722 [2023-12-16 04:23:40,296 INFO L226 Difference]: Without dead ends: 514 [2023-12-16 04:23:40,297 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 117 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=190, Invalid=566, Unknown=0, NotChecked=0, Total=756 [2023-12-16 04:23:40,298 INFO L413 NwaCegarLoop]: 235 mSDtfsCounter, 575 mSDsluCounter, 1135 mSDsCounter, 0 mSdLazyCounter, 891 mSolverCounterSat, 70 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 575 SdHoareTripleChecker+Valid, 1370 SdHoareTripleChecker+Invalid, 961 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 70 IncrementalHoareTripleChecker+Valid, 891 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-12-16 04:23:40,298 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [575 Valid, 1370 Invalid, 961 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [70 Valid, 891 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-12-16 04:23:40,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 514 states. [2023-12-16 04:23:40,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 514 to 259. [2023-12-16 04:23:40,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 259 states, 226 states have (on average 1.3185840707964602) internal successors, (298), 227 states have internal predecessors, (298), 30 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (30), 29 states have call predecessors, (30), 30 states have call successors, (30) [2023-12-16 04:23:40,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 259 states to 259 states and 358 transitions. [2023-12-16 04:23:40,360 INFO L78 Accepts]: Start accepts. Automaton has 259 states and 358 transitions. Word has length 144 [2023-12-16 04:23:40,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 04:23:40,361 INFO L495 AbstractCegarLoop]: Abstraction has 259 states and 358 transitions. [2023-12-16 04:23:40,361 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 4.7272727272727275) internal successors, (52), 11 states have internal predecessors, (52), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-12-16 04:23:40,361 INFO L276 IsEmpty]: Start isEmpty. Operand 259 states and 358 transitions. [2023-12-16 04:23:40,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2023-12-16 04:23:40,362 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 04:23:40,363 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 04:23:40,363 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-12-16 04:23:40,363 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 04:23:40,363 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 04:23:40,363 INFO L85 PathProgramCache]: Analyzing trace with hash 288196809, now seen corresponding path program 1 times [2023-12-16 04:23:40,364 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 04:23:40,364 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1269520612] [2023-12-16 04:23:40,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:23:40,364 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 04:23:40,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:41,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 04:23:41,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:41,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 04:23:41,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:41,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 04:23:41,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:41,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-16 04:23:41,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:41,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-16 04:23:41,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:41,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-16 04:23:41,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:41,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-16 04:23:41,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:41,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-16 04:23:41,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:41,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-16 04:23:41,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:41,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-16 04:23:41,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:41,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-16 04:23:41,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:41,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-16 04:23:41,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:41,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-16 04:23:41,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:41,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-16 04:23:41,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:41,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-16 04:23:41,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:41,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-16 04:23:41,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:41,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-16 04:23:41,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:41,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-16 04:23:41,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:41,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-16 04:23:41,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:41,653 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2023-12-16 04:23:41,653 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 04:23:41,653 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1269520612] [2023-12-16 04:23:41,653 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1269520612] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 04:23:41,653 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 04:23:41,653 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2023-12-16 04:23:41,654 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [696565339] [2023-12-16 04:23:41,654 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 04:23:41,654 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-12-16 04:23:41,654 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 04:23:41,655 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-12-16 04:23:41,655 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=142, Unknown=0, NotChecked=0, Total=182 [2023-12-16 04:23:41,655 INFO L87 Difference]: Start difference. First operand 259 states and 358 transitions. Second operand has 14 states, 14 states have (on average 3.7857142857142856) internal successors, (53), 14 states have internal predecessors, (53), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2023-12-16 04:23:43,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 04:23:43,164 INFO L93 Difference]: Finished difference Result 728 states and 996 transitions. [2023-12-16 04:23:43,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-16 04:23:43,165 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 3.7857142857142856) internal successors, (53), 14 states have internal predecessors, (53), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) Word has length 145 [2023-12-16 04:23:43,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 04:23:43,167 INFO L225 Difference]: With dead ends: 728 [2023-12-16 04:23:43,167 INFO L226 Difference]: Without dead ends: 470 [2023-12-16 04:23:43,169 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 92 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=127, Invalid=379, Unknown=0, NotChecked=0, Total=506 [2023-12-16 04:23:43,169 INFO L413 NwaCegarLoop]: 118 mSDtfsCounter, 470 mSDsluCounter, 688 mSDsCounter, 0 mSdLazyCounter, 949 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 470 SdHoareTripleChecker+Valid, 806 SdHoareTripleChecker+Invalid, 1017 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 949 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-12-16 04:23:43,169 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [470 Valid, 806 Invalid, 1017 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [68 Valid, 949 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-12-16 04:23:43,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 470 states. [2023-12-16 04:23:43,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 470 to 284. [2023-12-16 04:23:43,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 284 states, 251 states have (on average 1.3266932270916334) internal successors, (333), 252 states have internal predecessors, (333), 30 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (30), 29 states have call predecessors, (30), 30 states have call successors, (30) [2023-12-16 04:23:43,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 284 states to 284 states and 393 transitions. [2023-12-16 04:23:43,228 INFO L78 Accepts]: Start accepts. Automaton has 284 states and 393 transitions. Word has length 145 [2023-12-16 04:23:43,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 04:23:43,229 INFO L495 AbstractCegarLoop]: Abstraction has 284 states and 393 transitions. [2023-12-16 04:23:43,229 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 3.7857142857142856) internal successors, (53), 14 states have internal predecessors, (53), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2023-12-16 04:23:43,229 INFO L276 IsEmpty]: Start isEmpty. Operand 284 states and 393 transitions. [2023-12-16 04:23:43,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2023-12-16 04:23:43,230 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 04:23:43,230 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 04:23:43,230 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-12-16 04:23:43,230 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 04:23:43,231 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 04:23:43,231 INFO L85 PathProgramCache]: Analyzing trace with hash -1300151093, now seen corresponding path program 1 times [2023-12-16 04:23:43,231 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 04:23:43,231 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [193625316] [2023-12-16 04:23:43,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:23:43,231 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 04:23:43,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:43,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 04:23:43,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:43,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 04:23:43,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:43,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 04:23:43,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:43,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-16 04:23:43,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:43,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-16 04:23:43,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:43,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-16 04:23:43,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:43,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-16 04:23:43,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:43,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-16 04:23:43,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:43,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-16 04:23:43,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:43,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-16 04:23:43,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:43,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-16 04:23:43,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:43,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-16 04:23:43,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:43,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-16 04:23:43,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:43,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-16 04:23:43,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:43,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-16 04:23:43,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:43,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-16 04:23:43,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:43,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-16 04:23:43,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:43,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-16 04:23:43,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:43,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-16 04:23:43,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:43,566 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2023-12-16 04:23:43,566 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 04:23:43,566 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [193625316] [2023-12-16 04:23:43,566 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [193625316] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 04:23:43,566 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 04:23:43,566 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-16 04:23:43,567 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [387967379] [2023-12-16 04:23:43,567 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 04:23:43,567 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-16 04:23:43,567 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 04:23:43,568 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-16 04:23:43,568 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-16 04:23:43,568 INFO L87 Difference]: Start difference. First operand 284 states and 393 transitions. Second operand has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-12-16 04:23:43,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 04:23:43,981 INFO L93 Difference]: Finished difference Result 777 states and 1066 transitions. [2023-12-16 04:23:43,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-16 04:23:43,982 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 145 [2023-12-16 04:23:43,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 04:23:43,984 INFO L225 Difference]: With dead ends: 777 [2023-12-16 04:23:43,984 INFO L226 Difference]: Without dead ends: 494 [2023-12-16 04:23:43,985 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2023-12-16 04:23:43,985 INFO L413 NwaCegarLoop]: 152 mSDtfsCounter, 163 mSDsluCounter, 352 mSDsCounter, 0 mSdLazyCounter, 339 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 163 SdHoareTripleChecker+Valid, 504 SdHoareTripleChecker+Invalid, 340 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 339 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-16 04:23:43,986 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [163 Valid, 504 Invalid, 340 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 339 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-16 04:23:43,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 494 states. [2023-12-16 04:23:44,022 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 494 to 294. [2023-12-16 04:23:44,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 294 states, 261 states have (on average 1.3295019157088122) internal successors, (347), 262 states have internal predecessors, (347), 30 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (30), 29 states have call predecessors, (30), 30 states have call successors, (30) [2023-12-16 04:23:44,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 294 states to 294 states and 407 transitions. [2023-12-16 04:23:44,024 INFO L78 Accepts]: Start accepts. Automaton has 294 states and 407 transitions. Word has length 145 [2023-12-16 04:23:44,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 04:23:44,025 INFO L495 AbstractCegarLoop]: Abstraction has 294 states and 407 transitions. [2023-12-16 04:23:44,025 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-12-16 04:23:44,025 INFO L276 IsEmpty]: Start isEmpty. Operand 294 states and 407 transitions. [2023-12-16 04:23:44,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2023-12-16 04:23:44,026 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 04:23:44,026 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 04:23:44,026 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-12-16 04:23:44,027 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 04:23:44,027 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 04:23:44,027 INFO L85 PathProgramCache]: Analyzing trace with hash 1983698953, now seen corresponding path program 1 times [2023-12-16 04:23:44,027 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 04:23:44,027 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1635551977] [2023-12-16 04:23:44,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:23:44,027 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 04:23:44,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:45,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 04:23:45,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:45,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 04:23:45,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:45,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 04:23:45,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:45,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-16 04:23:45,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:45,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-16 04:23:45,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:45,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-16 04:23:45,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:45,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-16 04:23:45,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:45,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-16 04:23:45,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:45,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-16 04:23:45,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:45,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-16 04:23:45,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:45,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-16 04:23:45,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:45,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-16 04:23:45,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:45,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-16 04:23:45,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:45,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-16 04:23:45,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:45,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-16 04:23:45,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:45,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-16 04:23:45,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:45,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-16 04:23:45,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:45,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-16 04:23:45,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:45,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-16 04:23:45,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:45,098 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2023-12-16 04:23:45,098 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 04:23:45,099 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1635551977] [2023-12-16 04:23:45,099 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1635551977] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 04:23:45,099 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 04:23:45,099 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2023-12-16 04:23:45,099 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1437772487] [2023-12-16 04:23:45,099 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 04:23:45,100 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-12-16 04:23:45,100 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 04:23:45,100 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-12-16 04:23:45,100 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=199, Unknown=0, NotChecked=0, Total=240 [2023-12-16 04:23:45,101 INFO L87 Difference]: Start difference. First operand 294 states and 407 transitions. Second operand has 16 states, 15 states have (on average 3.533333333333333) internal successors, (53), 16 states have internal predecessors, (53), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2023-12-16 04:23:46,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 04:23:46,521 INFO L93 Difference]: Finished difference Result 687 states and 944 transitions. [2023-12-16 04:23:46,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-16 04:23:46,523 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 3.533333333333333) internal successors, (53), 16 states have internal predecessors, (53), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) Word has length 145 [2023-12-16 04:23:46,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 04:23:46,525 INFO L225 Difference]: With dead ends: 687 [2023-12-16 04:23:46,525 INFO L226 Difference]: Without dead ends: 394 [2023-12-16 04:23:46,526 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=138, Invalid=512, Unknown=0, NotChecked=0, Total=650 [2023-12-16 04:23:46,527 INFO L413 NwaCegarLoop]: 168 mSDtfsCounter, 497 mSDsluCounter, 921 mSDsCounter, 0 mSdLazyCounter, 1205 mSolverCounterSat, 90 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 497 SdHoareTripleChecker+Valid, 1089 SdHoareTripleChecker+Invalid, 1295 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 90 IncrementalHoareTripleChecker+Valid, 1205 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-12-16 04:23:46,527 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [497 Valid, 1089 Invalid, 1295 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [90 Valid, 1205 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-12-16 04:23:46,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 394 states. [2023-12-16 04:23:46,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 394 to 294. [2023-12-16 04:23:46,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 294 states, 261 states have (on average 1.3295019157088122) internal successors, (347), 262 states have internal predecessors, (347), 30 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (30), 29 states have call predecessors, (30), 30 states have call successors, (30) [2023-12-16 04:23:46,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 294 states to 294 states and 407 transitions. [2023-12-16 04:23:46,572 INFO L78 Accepts]: Start accepts. Automaton has 294 states and 407 transitions. Word has length 145 [2023-12-16 04:23:46,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 04:23:46,572 INFO L495 AbstractCegarLoop]: Abstraction has 294 states and 407 transitions. [2023-12-16 04:23:46,572 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 3.533333333333333) internal successors, (53), 16 states have internal predecessors, (53), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2023-12-16 04:23:46,573 INFO L276 IsEmpty]: Start isEmpty. Operand 294 states and 407 transitions. [2023-12-16 04:23:46,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2023-12-16 04:23:46,574 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 04:23:46,574 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 04:23:46,574 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-12-16 04:23:46,574 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 04:23:46,574 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 04:23:46,575 INFO L85 PathProgramCache]: Analyzing trace with hash 110204309, now seen corresponding path program 1 times [2023-12-16 04:23:46,575 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 04:23:46,575 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1444429952] [2023-12-16 04:23:46,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:23:46,575 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 04:23:46,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:46,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 04:23:46,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:46,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 04:23:46,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:46,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 04:23:46,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:46,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-16 04:23:46,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:46,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-16 04:23:46,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:46,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-16 04:23:46,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:46,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-16 04:23:46,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:46,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-16 04:23:46,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:46,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-16 04:23:46,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:46,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-16 04:23:46,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:46,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-16 04:23:46,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:46,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-16 04:23:46,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:46,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-16 04:23:46,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:46,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-16 04:23:46,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:46,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-16 04:23:46,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:46,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-16 04:23:46,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:46,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-16 04:23:46,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:46,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-16 04:23:46,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:46,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-16 04:23:46,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:46,926 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2023-12-16 04:23:46,926 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 04:23:46,926 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1444429952] [2023-12-16 04:23:46,926 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1444429952] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 04:23:46,926 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 04:23:46,926 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-16 04:23:46,927 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1132696534] [2023-12-16 04:23:46,927 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 04:23:46,927 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-16 04:23:46,927 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 04:23:46,928 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-16 04:23:46,928 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-12-16 04:23:46,928 INFO L87 Difference]: Start difference. First operand 294 states and 407 transitions. Second operand has 8 states, 7 states have (on average 7.571428571428571) internal successors, (53), 8 states have internal predecessors, (53), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2023-12-16 04:23:47,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 04:23:47,315 INFO L93 Difference]: Finished difference Result 590 states and 817 transitions. [2023-12-16 04:23:47,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-16 04:23:47,317 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 7.571428571428571) internal successors, (53), 8 states have internal predecessors, (53), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) Word has length 145 [2023-12-16 04:23:47,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 04:23:47,319 INFO L225 Difference]: With dead ends: 590 [2023-12-16 04:23:47,319 INFO L226 Difference]: Without dead ends: 297 [2023-12-16 04:23:47,320 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2023-12-16 04:23:47,320 INFO L413 NwaCegarLoop]: 106 mSDtfsCounter, 211 mSDsluCounter, 203 mSDsCounter, 0 mSdLazyCounter, 379 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 211 SdHoareTripleChecker+Valid, 309 SdHoareTripleChecker+Invalid, 403 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 379 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-16 04:23:47,320 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [211 Valid, 309 Invalid, 403 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 379 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-16 04:23:47,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 297 states. [2023-12-16 04:23:47,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 297 to 295. [2023-12-16 04:23:47,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 295 states, 262 states have (on average 1.3282442748091603) internal successors, (348), 263 states have internal predecessors, (348), 30 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (30), 29 states have call predecessors, (30), 30 states have call successors, (30) [2023-12-16 04:23:47,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 295 states to 295 states and 408 transitions. [2023-12-16 04:23:47,354 INFO L78 Accepts]: Start accepts. Automaton has 295 states and 408 transitions. Word has length 145 [2023-12-16 04:23:47,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 04:23:47,355 INFO L495 AbstractCegarLoop]: Abstraction has 295 states and 408 transitions. [2023-12-16 04:23:47,355 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 7.571428571428571) internal successors, (53), 8 states have internal predecessors, (53), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2023-12-16 04:23:47,355 INFO L276 IsEmpty]: Start isEmpty. Operand 295 states and 408 transitions. [2023-12-16 04:23:47,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2023-12-16 04:23:47,356 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 04:23:47,356 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 04:23:47,356 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2023-12-16 04:23:47,356 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 04:23:47,357 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 04:23:47,357 INFO L85 PathProgramCache]: Analyzing trace with hash -30344301, now seen corresponding path program 1 times [2023-12-16 04:23:47,357 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 04:23:47,357 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [149802187] [2023-12-16 04:23:47,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:23:47,357 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 04:23:47,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:48,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 04:23:48,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:48,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 04:23:48,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:48,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 04:23:48,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:48,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-16 04:23:48,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:48,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-16 04:23:48,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:48,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-16 04:23:48,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:48,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-16 04:23:48,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:48,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-16 04:23:48,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:48,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-16 04:23:48,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:48,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-16 04:23:48,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:48,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-16 04:23:48,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:48,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-16 04:23:48,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:48,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-16 04:23:48,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:48,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-16 04:23:48,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:48,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-16 04:23:48,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:48,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-16 04:23:48,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:48,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-16 04:23:48,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:48,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-16 04:23:48,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:48,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-16 04:23:48,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:48,904 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2023-12-16 04:23:48,904 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 04:23:48,905 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [149802187] [2023-12-16 04:23:48,905 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [149802187] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 04:23:48,905 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 04:23:48,905 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2023-12-16 04:23:48,905 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [71507757] [2023-12-16 04:23:48,905 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 04:23:48,905 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-12-16 04:23:48,906 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 04:23:48,906 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-12-16 04:23:48,906 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=199, Unknown=0, NotChecked=0, Total=240 [2023-12-16 04:23:48,906 INFO L87 Difference]: Start difference. First operand 295 states and 408 transitions. Second operand has 16 states, 15 states have (on average 3.533333333333333) internal successors, (53), 16 states have internal predecessors, (53), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2023-12-16 04:23:51,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 04:23:51,042 INFO L93 Difference]: Finished difference Result 1034 states and 1417 transitions. [2023-12-16 04:23:51,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-12-16 04:23:51,043 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 3.533333333333333) internal successors, (53), 16 states have internal predecessors, (53), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) Word has length 145 [2023-12-16 04:23:51,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 04:23:51,046 INFO L225 Difference]: With dead ends: 1034 [2023-12-16 04:23:51,046 INFO L226 Difference]: Without dead ends: 740 [2023-12-16 04:23:51,047 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 41 SyntacticMatches, 1 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 153 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=177, Invalid=693, Unknown=0, NotChecked=0, Total=870 [2023-12-16 04:23:51,047 INFO L413 NwaCegarLoop]: 180 mSDtfsCounter, 517 mSDsluCounter, 1098 mSDsCounter, 0 mSdLazyCounter, 1390 mSolverCounterSat, 92 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 517 SdHoareTripleChecker+Valid, 1278 SdHoareTripleChecker+Invalid, 1482 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 92 IncrementalHoareTripleChecker+Valid, 1390 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-12-16 04:23:51,047 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [517 Valid, 1278 Invalid, 1482 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [92 Valid, 1390 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-12-16 04:23:51,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 740 states. [2023-12-16 04:23:51,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 740 to 326. [2023-12-16 04:23:51,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 326 states, 293 states have (on average 1.3378839590443685) internal successors, (392), 294 states have internal predecessors, (392), 30 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (30), 29 states have call predecessors, (30), 30 states have call successors, (30) [2023-12-16 04:23:51,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 326 states to 326 states and 452 transitions. [2023-12-16 04:23:51,134 INFO L78 Accepts]: Start accepts. Automaton has 326 states and 452 transitions. Word has length 145 [2023-12-16 04:23:51,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 04:23:51,135 INFO L495 AbstractCegarLoop]: Abstraction has 326 states and 452 transitions. [2023-12-16 04:23:51,135 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 3.533333333333333) internal successors, (53), 16 states have internal predecessors, (53), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2023-12-16 04:23:51,135 INFO L276 IsEmpty]: Start isEmpty. Operand 326 states and 452 transitions. [2023-12-16 04:23:51,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2023-12-16 04:23:51,136 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 04:23:51,136 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 04:23:51,136 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2023-12-16 04:23:51,137 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 04:23:51,137 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 04:23:51,137 INFO L85 PathProgramCache]: Analyzing trace with hash -1310207979, now seen corresponding path program 1 times [2023-12-16 04:23:51,137 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 04:23:51,137 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [694291012] [2023-12-16 04:23:51,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:23:51,137 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 04:23:51,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:51,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 04:23:51,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:51,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 04:23:51,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:51,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 04:23:51,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:51,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-16 04:23:51,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:51,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-16 04:23:51,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:51,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-16 04:23:51,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:51,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-16 04:23:51,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:51,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-16 04:23:51,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:51,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-16 04:23:51,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:51,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-16 04:23:51,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:51,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-16 04:23:51,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:51,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-16 04:23:51,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:51,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-16 04:23:51,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:51,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-16 04:23:51,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:51,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-16 04:23:51,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:51,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-16 04:23:51,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:51,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-16 04:23:51,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:51,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-16 04:23:51,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:51,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-16 04:23:51,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:51,953 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2023-12-16 04:23:51,955 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 04:23:51,956 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [694291012] [2023-12-16 04:23:51,956 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [694291012] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 04:23:51,956 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 04:23:51,956 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-16 04:23:51,957 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1817476395] [2023-12-16 04:23:51,957 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 04:23:51,957 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-16 04:23:51,957 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 04:23:51,958 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-16 04:23:51,958 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2023-12-16 04:23:51,958 INFO L87 Difference]: Start difference. First operand 326 states and 452 transitions. Second operand has 10 states, 10 states have (on average 5.3) internal successors, (53), 10 states have internal predecessors, (53), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2023-12-16 04:23:52,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 04:23:52,844 INFO L93 Difference]: Finished difference Result 765 states and 1051 transitions. [2023-12-16 04:23:52,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-16 04:23:52,845 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.3) internal successors, (53), 10 states have internal predecessors, (53), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) Word has length 145 [2023-12-16 04:23:52,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 04:23:52,847 INFO L225 Difference]: With dead ends: 765 [2023-12-16 04:23:52,847 INFO L226 Difference]: Without dead ends: 440 [2023-12-16 04:23:52,848 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=72, Invalid=168, Unknown=0, NotChecked=0, Total=240 [2023-12-16 04:23:52,849 INFO L413 NwaCegarLoop]: 149 mSDtfsCounter, 399 mSDsluCounter, 421 mSDsCounter, 0 mSdLazyCounter, 557 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 399 SdHoareTripleChecker+Valid, 570 SdHoareTripleChecker+Invalid, 601 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 557 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-16 04:23:52,849 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [399 Valid, 570 Invalid, 601 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 557 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-16 04:23:52,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 440 states. [2023-12-16 04:23:52,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 440 to 329. [2023-12-16 04:23:52,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 329 states, 296 states have (on average 1.3175675675675675) internal successors, (390), 297 states have internal predecessors, (390), 30 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (30), 29 states have call predecessors, (30), 30 states have call successors, (30) [2023-12-16 04:23:52,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 329 states to 329 states and 450 transitions. [2023-12-16 04:23:52,893 INFO L78 Accepts]: Start accepts. Automaton has 329 states and 450 transitions. Word has length 145 [2023-12-16 04:23:52,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 04:23:52,893 INFO L495 AbstractCegarLoop]: Abstraction has 329 states and 450 transitions. [2023-12-16 04:23:52,893 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.3) internal successors, (53), 10 states have internal predecessors, (53), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2023-12-16 04:23:52,894 INFO L276 IsEmpty]: Start isEmpty. Operand 329 states and 450 transitions. [2023-12-16 04:23:52,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2023-12-16 04:23:52,895 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 04:23:52,895 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 04:23:52,895 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2023-12-16 04:23:52,895 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 04:23:52,895 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 04:23:52,895 INFO L85 PathProgramCache]: Analyzing trace with hash -1719288043, now seen corresponding path program 1 times [2023-12-16 04:23:52,903 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 04:23:52,903 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1990287700] [2023-12-16 04:23:52,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:23:52,903 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 04:23:52,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:54,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 04:23:54,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:54,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 04:23:54,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:54,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 04:23:54,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:54,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-16 04:23:54,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:54,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-16 04:23:54,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:54,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-16 04:23:54,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:54,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-16 04:23:54,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:54,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-16 04:23:54,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:54,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-16 04:23:54,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:54,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-16 04:23:54,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:54,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-16 04:23:54,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:54,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-16 04:23:54,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:54,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-16 04:23:54,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:54,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-16 04:23:54,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:54,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-16 04:23:54,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:54,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-16 04:23:54,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:54,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-16 04:23:54,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:54,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-16 04:23:54,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:54,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-16 04:23:54,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:54,732 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2023-12-16 04:23:54,733 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 04:23:54,733 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1990287700] [2023-12-16 04:23:54,733 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1990287700] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 04:23:54,733 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 04:23:54,733 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2023-12-16 04:23:54,733 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1512792841] [2023-12-16 04:23:54,733 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 04:23:54,734 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-12-16 04:23:54,734 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 04:23:54,734 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-12-16 04:23:54,734 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=222, Unknown=0, NotChecked=0, Total=272 [2023-12-16 04:23:54,735 INFO L87 Difference]: Start difference. First operand 329 states and 450 transitions. Second operand has 17 states, 17 states have (on average 3.1176470588235294) internal successors, (53), 17 states have internal predecessors, (53), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2023-12-16 04:23:58,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 04:23:58,151 INFO L93 Difference]: Finished difference Result 777 states and 1060 transitions. [2023-12-16 04:23:58,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-16 04:23:58,152 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 3.1176470588235294) internal successors, (53), 17 states have internal predecessors, (53), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) Word has length 145 [2023-12-16 04:23:58,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 04:23:58,154 INFO L225 Difference]: With dead ends: 777 [2023-12-16 04:23:58,154 INFO L226 Difference]: Without dead ends: 449 [2023-12-16 04:23:58,155 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 41 SyntacticMatches, 2 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 156 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=167, Invalid=589, Unknown=0, NotChecked=0, Total=756 [2023-12-16 04:23:58,155 INFO L413 NwaCegarLoop]: 165 mSDtfsCounter, 418 mSDsluCounter, 914 mSDsCounter, 0 mSdLazyCounter, 1286 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 418 SdHoareTripleChecker+Valid, 1079 SdHoareTripleChecker+Invalid, 1351 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 1286 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2023-12-16 04:23:58,156 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [418 Valid, 1079 Invalid, 1351 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 1286 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2023-12-16 04:23:58,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 449 states. [2023-12-16 04:23:58,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 449 to 319. [2023-12-16 04:23:58,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 319 states, 286 states have (on average 1.3181818181818181) internal successors, (377), 287 states have internal predecessors, (377), 30 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (30), 29 states have call predecessors, (30), 30 states have call successors, (30) [2023-12-16 04:23:58,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 319 states to 319 states and 437 transitions. [2023-12-16 04:23:58,205 INFO L78 Accepts]: Start accepts. Automaton has 319 states and 437 transitions. Word has length 145 [2023-12-16 04:23:58,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 04:23:58,206 INFO L495 AbstractCegarLoop]: Abstraction has 319 states and 437 transitions. [2023-12-16 04:23:58,206 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 3.1176470588235294) internal successors, (53), 17 states have internal predecessors, (53), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2023-12-16 04:23:58,206 INFO L276 IsEmpty]: Start isEmpty. Operand 319 states and 437 transitions. [2023-12-16 04:23:58,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2023-12-16 04:23:58,207 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 04:23:58,207 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 04:23:58,207 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2023-12-16 04:23:58,207 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 04:23:58,208 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 04:23:58,208 INFO L85 PathProgramCache]: Analyzing trace with hash -221276281, now seen corresponding path program 1 times [2023-12-16 04:23:58,208 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 04:23:58,208 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1260705987] [2023-12-16 04:23:58,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:23:58,208 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 04:23:58,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:58,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 04:23:58,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:58,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 04:23:58,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:58,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 04:23:58,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:58,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-16 04:23:58,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:58,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-16 04:23:58,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:58,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-16 04:23:58,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:58,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-16 04:23:58,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:58,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-16 04:23:58,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:58,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-16 04:23:58,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:58,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-16 04:23:58,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:58,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-16 04:23:58,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:58,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-16 04:23:58,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:58,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-16 04:23:58,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:58,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-16 04:23:58,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:58,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-16 04:23:58,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:58,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-16 04:23:58,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:58,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-16 04:23:58,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:58,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-16 04:23:58,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:58,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-16 04:23:58,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:23:58,943 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2023-12-16 04:23:58,943 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 04:23:58,943 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1260705987] [2023-12-16 04:23:58,943 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1260705987] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 04:23:58,944 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 04:23:58,944 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-12-16 04:23:58,944 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1645942472] [2023-12-16 04:23:58,944 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 04:23:58,945 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-12-16 04:23:58,945 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 04:23:58,945 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-12-16 04:23:58,945 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2023-12-16 04:23:58,946 INFO L87 Difference]: Start difference. First operand 319 states and 437 transitions. Second operand has 12 states, 11 states have (on average 4.818181818181818) internal successors, (53), 12 states have internal predecessors, (53), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2023-12-16 04:23:59,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 04:23:59,929 INFO L93 Difference]: Finished difference Result 765 states and 1040 transitions. [2023-12-16 04:23:59,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-16 04:23:59,930 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 4.818181818181818) internal successors, (53), 12 states have internal predecessors, (53), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) Word has length 145 [2023-12-16 04:23:59,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 04:23:59,933 INFO L225 Difference]: With dead ends: 765 [2023-12-16 04:23:59,933 INFO L226 Difference]: Without dead ends: 447 [2023-12-16 04:23:59,948 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 41 SyntacticMatches, 2 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=88, Invalid=254, Unknown=0, NotChecked=0, Total=342 [2023-12-16 04:23:59,949 INFO L413 NwaCegarLoop]: 118 mSDtfsCounter, 410 mSDsluCounter, 436 mSDsCounter, 0 mSdLazyCounter, 796 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 410 SdHoareTripleChecker+Valid, 554 SdHoareTripleChecker+Invalid, 865 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 796 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-16 04:23:59,951 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [410 Valid, 554 Invalid, 865 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [69 Valid, 796 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-16 04:23:59,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 447 states. [2023-12-16 04:24:00,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 447 to 262. [2023-12-16 04:24:00,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 262 states, 240 states have (on average 1.3208333333333333) internal successors, (317), 240 states have internal predecessors, (317), 19 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2023-12-16 04:24:00,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 262 states to 262 states and 355 transitions. [2023-12-16 04:24:00,013 INFO L78 Accepts]: Start accepts. Automaton has 262 states and 355 transitions. Word has length 145 [2023-12-16 04:24:00,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 04:24:00,013 INFO L495 AbstractCegarLoop]: Abstraction has 262 states and 355 transitions. [2023-12-16 04:24:00,014 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 4.818181818181818) internal successors, (53), 12 states have internal predecessors, (53), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2023-12-16 04:24:00,014 INFO L276 IsEmpty]: Start isEmpty. Operand 262 states and 355 transitions. [2023-12-16 04:24:00,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2023-12-16 04:24:00,015 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 04:24:00,016 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 04:24:00,016 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2023-12-16 04:24:00,016 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 04:24:00,016 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 04:24:00,016 INFO L85 PathProgramCache]: Analyzing trace with hash -1232393531, now seen corresponding path program 1 times [2023-12-16 04:24:00,016 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 04:24:00,016 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [830819305] [2023-12-16 04:24:00,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:24:00,017 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 04:24:00,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:24:00,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 04:24:00,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:24:00,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 04:24:00,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:24:00,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 04:24:00,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:24:00,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-16 04:24:00,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:24:00,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-16 04:24:00,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:24:00,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-16 04:24:00,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:24:00,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-16 04:24:00,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:24:00,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-16 04:24:00,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:24:00,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-16 04:24:00,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:24:00,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-16 04:24:00,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:24:00,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-16 04:24:00,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:24:00,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-16 04:24:00,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:24:00,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-16 04:24:00,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:24:00,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-16 04:24:00,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:24:00,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-16 04:24:00,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:24:00,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-16 04:24:00,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:24:00,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-16 04:24:00,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:24:00,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-16 04:24:00,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:24:00,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-16 04:24:00,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:24:00,956 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2023-12-16 04:24:00,957 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 04:24:00,957 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [830819305] [2023-12-16 04:24:00,957 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [830819305] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 04:24:00,957 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 04:24:00,957 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-12-16 04:24:00,957 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1619016911] [2023-12-16 04:24:00,957 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 04:24:00,958 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-12-16 04:24:00,958 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 04:24:00,958 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-12-16 04:24:00,958 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2023-12-16 04:24:00,959 INFO L87 Difference]: Start difference. First operand 262 states and 355 transitions. Second operand has 12 states, 11 states have (on average 4.818181818181818) internal successors, (53), 12 states have internal predecessors, (53), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) Received shutdown request... [2023-12-16 04:24:01,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 04:24:01,357 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=42, Invalid=140, Unknown=0, NotChecked=0, Total=182 [2023-12-16 04:24:01,358 INFO L413 NwaCegarLoop]: 50 mSDtfsCounter, 53 mSDsluCounter, 105 mSDsCounter, 0 mSdLazyCounter, 249 mSolverCounterSat, 78 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 155 SdHoareTripleChecker+Invalid, 327 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 78 IncrementalHoareTripleChecker+Valid, 249 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-16 04:24:01,358 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 155 Invalid, 327 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [78 Valid, 249 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-16 04:24:01,359 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-16 04:24:01,359 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2023-12-16 04:24:01,359 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was constructing difference of abstraction (262states) and FLOYD_HOARE automaton (currently 5 states, 12 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDA2 was simplifying a ∧-10-1 term,while SimplifyDDA2 was simplifying 10 xjuncts wrt. a ATOM-1 context. [2023-12-16 04:24:01,360 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 04:24:01,364 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 04:24:01,366 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-16 04:24:01,368 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.12 04:24:01 BoogieIcfgContainer [2023-12-16 04:24:01,368 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-16 04:24:01,368 INFO L158 Benchmark]: Toolchain (without parser) took 49635.06ms. Allocated memory was 213.9MB in the beginning and 540.0MB in the end (delta: 326.1MB). Free memory was 161.6MB in the beginning and 486.6MB in the end (delta: -325.0MB). Peak memory consumption was 1.7MB. Max. memory is 8.0GB. [2023-12-16 04:24:01,369 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 176.2MB. Free memory is still 126.9MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-16 04:24:01,369 INFO L158 Benchmark]: CACSL2BoogieTranslator took 355.57ms. Allocated memory is still 213.9MB. Free memory was 161.4MB in the beginning and 145.8MB in the end (delta: 15.5MB). Peak memory consumption was 15.7MB. Max. memory is 8.0GB. [2023-12-16 04:24:01,369 INFO L158 Benchmark]: Boogie Procedure Inliner took 66.92ms. Allocated memory is still 213.9MB. Free memory was 145.8MB in the beginning and 141.2MB in the end (delta: 4.7MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2023-12-16 04:24:01,369 INFO L158 Benchmark]: Boogie Preprocessor took 88.67ms. Allocated memory is still 213.9MB. Free memory was 141.2MB in the beginning and 136.2MB in the end (delta: 5.0MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. [2023-12-16 04:24:01,369 INFO L158 Benchmark]: RCFGBuilder took 756.18ms. Allocated memory is still 213.9MB. Free memory was 136.2MB in the beginning and 150.4MB in the end (delta: -14.2MB). Peak memory consumption was 17.0MB. Max. memory is 8.0GB. [2023-12-16 04:24:01,370 INFO L158 Benchmark]: TraceAbstraction took 48361.59ms. Allocated memory was 213.9MB in the beginning and 540.0MB in the end (delta: 326.1MB). Free memory was 149.3MB in the beginning and 486.6MB in the end (delta: -337.2MB). There was no memory consumed. Max. memory is 8.0GB. [2023-12-16 04:24:01,371 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 176.2MB. Free memory is still 126.9MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 355.57ms. Allocated memory is still 213.9MB. Free memory was 161.4MB in the beginning and 145.8MB in the end (delta: 15.5MB). Peak memory consumption was 15.7MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 66.92ms. Allocated memory is still 213.9MB. Free memory was 145.8MB in the beginning and 141.2MB in the end (delta: 4.7MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * Boogie Preprocessor took 88.67ms. Allocated memory is still 213.9MB. Free memory was 141.2MB in the beginning and 136.2MB in the end (delta: 5.0MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. * RCFGBuilder took 756.18ms. Allocated memory is still 213.9MB. Free memory was 136.2MB in the beginning and 150.4MB in the end (delta: -14.2MB). Peak memory consumption was 17.0MB. Max. memory is 8.0GB. * TraceAbstraction took 48361.59ms. Allocated memory was 213.9MB in the beginning and 540.0MB in the end (delta: 326.1MB). Free memory was 149.3MB in the beginning and 486.6MB in the end (delta: -337.2MB). There was no memory consumed. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - TimeoutResultAtElement [Line: 19]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 19). Cancelled while NwaCegarLoop was constructing difference of abstraction (262states) and FLOYD_HOARE automaton (currently 5 states, 12 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDA2 was simplifying a ∧-10-1 term,while SimplifyDDA2 was simplifying 10 xjuncts wrt. a ATOM-1 context. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 98 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 48.3s, OverallIterations: 27, TraceHistogramMax: 19, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 26.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 6793 SdHoareTripleChecker+Valid, 17.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 6793 mSDsluCounter, 18595 SdHoareTripleChecker+Invalid, 15.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 14521 mSDsCounter, 987 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 12698 IncrementalHoareTripleChecker+Invalid, 13685 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 987 mSolverCounterUnsat, 4074 mSDtfsCounter, 12698 mSolverCounterSat, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1478 GetRequests, 1121 SyntacticMatches, 6 SemanticMatches, 350 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1113 ImplicationChecksByTransitivity, 9.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=329occurred in iteration=24, InterpolantAutomatonStates: 250, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.9s AutomataMinimizationTime, 26 MinimizatonAttempts, 2679 StatesRemovedByMinimization, 25 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 1.2s SatisfiabilityAnalysisTime, 19.4s InterpolantComputationTime, 3851 NumberOfCodeBlocks, 3851 NumberOfCodeBlocksAsserted, 27 NumberOfCheckSat, 3824 ConstructedInterpolants, 0 QuantifiedInterpolants, 29108 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 27 InterpolantComputations, 27 PerfectInterpolantSequences, 18468/18468 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown