/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-64bit-Automizer_Default.epf --cacsl2boogietranslator.use.bitabs.translation true -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/hardware-verification-bv/btor2c-lazyMod.arbitrated_top_n2_w16_d16_e0.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-25 13:20:10,742 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-25 13:20:10,819 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf [2023-12-25 13:20:10,824 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-25 13:20:10,825 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-25 13:20:10,846 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-25 13:20:10,847 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-25 13:20:10,847 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-25 13:20:10,847 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-25 13:20:10,851 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-25 13:20:10,851 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-25 13:20:10,852 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-25 13:20:10,852 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-25 13:20:10,853 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-25 13:20:10,853 INFO L153 SettingsManager]: * Use SBE=true [2023-12-25 13:20:10,853 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-25 13:20:10,853 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-25 13:20:10,854 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-25 13:20:10,854 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-25 13:20:10,854 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-25 13:20:10,854 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-25 13:20:10,854 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-25 13:20:10,854 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-25 13:20:10,855 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-25 13:20:10,855 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-25 13:20:10,855 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-25 13:20:10,855 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-25 13:20:10,855 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-25 13:20:10,856 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-25 13:20:10,856 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-25 13:20:10,856 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-25 13:20:10,857 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-25 13:20:10,857 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-25 13:20:10,857 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-25 13:20:10,857 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-25 13:20:10,857 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-25 13:20:10,857 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-25 13:20:10,857 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-25 13:20:10,857 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-25 13:20:10,857 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-25 13:20:10,858 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> true [2023-12-25 13:20:11,056 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-25 13:20:11,078 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-25 13:20:11,080 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-25 13:20:11,081 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-25 13:20:11,085 INFO L274 PluginConnector]: CDTParser initialized [2023-12-25 13:20:11,086 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardware-verification-bv/btor2c-lazyMod.arbitrated_top_n2_w16_d16_e0.c [2023-12-25 13:20:12,150 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-25 13:20:12,353 INFO L384 CDTParser]: Found 1 translation units. [2023-12-25 13:20:12,354 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardware-verification-bv/btor2c-lazyMod.arbitrated_top_n2_w16_d16_e0.c [2023-12-25 13:20:12,372 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/db2351d6d/4ef264d8e4d445398e6c2f77e0a09333/FLAG4dccec5d7 [2023-12-25 13:20:12,385 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/db2351d6d/4ef264d8e4d445398e6c2f77e0a09333 [2023-12-25 13:20:12,387 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-25 13:20:12,388 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-25 13:20:12,388 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-25 13:20:12,388 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-25 13:20:12,393 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-25 13:20:12,393 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.12 01:20:12" (1/1) ... [2023-12-25 13:20:12,394 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@73a6539c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 01:20:12, skipping insertion in model container [2023-12-25 13:20:12,394 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.12 01:20:12" (1/1) ... [2023-12-25 13:20:12,444 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-25 13:20:12,590 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardware-verification-bv/btor2c-lazyMod.arbitrated_top_n2_w16_d16_e0.c[1271,1284] [2023-12-25 13:20:12,903 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-25 13:20:12,910 INFO L202 MainTranslator]: Completed pre-run [2023-12-25 13:20:12,917 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardware-verification-bv/btor2c-lazyMod.arbitrated_top_n2_w16_d16_e0.c[1271,1284] [2023-12-25 13:20:12,994 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-25 13:20:13,003 INFO L206 MainTranslator]: Completed translation [2023-12-25 13:20:13,003 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 01:20:13 WrapperNode [2023-12-25 13:20:13,003 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-25 13:20:13,005 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-25 13:20:13,005 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-25 13:20:13,005 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-25 13:20:13,009 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 01:20:13" (1/1) ... [2023-12-25 13:20:13,050 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 01:20:13" (1/1) ... [2023-12-25 13:20:13,385 INFO L138 Inliner]: procedures = 17, calls = 15, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 4527 [2023-12-25 13:20:13,386 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-25 13:20:13,386 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-25 13:20:13,386 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-25 13:20:13,386 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-25 13:20:13,394 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 01:20:13" (1/1) ... [2023-12-25 13:20:13,395 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 01:20:13" (1/1) ... [2023-12-25 13:20:13,502 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 01:20:13" (1/1) ... [2023-12-25 13:20:13,588 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-12-25 13:20:13,588 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 01:20:13" (1/1) ... [2023-12-25 13:20:13,588 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 01:20:13" (1/1) ... [2023-12-25 13:20:13,702 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 01:20:13" (1/1) ... [2023-12-25 13:20:13,766 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 01:20:13" (1/1) ... [2023-12-25 13:20:13,786 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 01:20:13" (1/1) ... [2023-12-25 13:20:13,803 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 01:20:13" (1/1) ... [2023-12-25 13:20:13,861 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-25 13:20:13,862 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-25 13:20:13,862 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-25 13:20:13,862 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-25 13:20:13,863 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 01:20:13" (1/1) ... [2023-12-25 13:20:13,867 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-25 13:20:13,874 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-25 13:20:13,886 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) [2023-12-25 13:20:13,891 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 [2023-12-25 13:20:13,905 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-25 13:20:13,906 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-25 13:20:13,906 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-25 13:20:13,906 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-25 13:20:13,906 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-25 13:20:13,911 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-25 13:20:14,177 INFO L241 CfgBuilder]: Building ICFG [2023-12-25 13:20:14,179 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-25 13:20:16,152 INFO L282 CfgBuilder]: Performing block encoding [2023-12-25 13:20:16,241 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-25 13:20:16,242 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-25 13:20:16,243 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.12 01:20:16 BoogieIcfgContainer [2023-12-25 13:20:16,243 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-25 13:20:16,244 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-25 13:20:16,245 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-25 13:20:16,247 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-25 13:20:16,247 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.12 01:20:12" (1/3) ... [2023-12-25 13:20:16,248 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a1abb05 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.12 01:20:16, skipping insertion in model container [2023-12-25 13:20:16,248 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 01:20:13" (2/3) ... [2023-12-25 13:20:16,248 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a1abb05 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.12 01:20:16, skipping insertion in model container [2023-12-25 13:20:16,248 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.12 01:20:16" (3/3) ... [2023-12-25 13:20:16,249 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.arbitrated_top_n2_w16_d16_e0.c [2023-12-25 13:20:16,260 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-25 13:20:16,260 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-25 13:20:16,313 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-25 13:20:16,317 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;@5084b760, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-25 13:20:16,318 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-25 13:20:16,324 INFO L276 IsEmpty]: Start isEmpty. Operand has 875 states, 865 states have (on average 1.6601156069364162) internal successors, (1436), 866 states have internal predecessors, (1436), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2023-12-25 13:20:16,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 375 [2023-12-25 13:20:16,350 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 13:20:16,351 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 13:20:16,377 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 13:20:16,380 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 13:20:16,381 INFO L85 PathProgramCache]: Analyzing trace with hash -1844114633, now seen corresponding path program 1 times [2023-12-25 13:20:16,388 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-25 13:20:16,389 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [582394963] [2023-12-25 13:20:16,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 13:20:16,389 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-25 13:20:16,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:20:16,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2023-12-25 13:20:16,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:20:16,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-12-25 13:20:16,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:20:16,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2023-12-25 13:20:16,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:20:16,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2023-12-25 13:20:16,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:20:16,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2023-12-25 13:20:16,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:20:16,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2023-12-25 13:20:16,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:20:16,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2023-12-25 13:20:16,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:20:16,918 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2023-12-25 13:20:16,919 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-25 13:20:16,919 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [582394963] [2023-12-25 13:20:16,919 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [582394963] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 13:20:16,920 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 13:20:16,920 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-25 13:20:16,921 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2083352122] [2023-12-25 13:20:16,921 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 13:20:16,926 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-25 13:20:16,926 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-25 13:20:16,952 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-25 13:20:16,952 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-25 13:20:16,955 INFO L87 Difference]: Start difference. First operand has 875 states, 865 states have (on average 1.6601156069364162) internal successors, (1436), 866 states have internal predecessors, (1436), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) Second operand has 2 states, 2 states have (on average 171.0) internal successors, (342), 2 states have internal predecessors, (342), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-25 13:20:17,024 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 13:20:17,024 INFO L93 Difference]: Finished difference Result 1612 states and 2680 transitions. [2023-12-25 13:20:17,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-25 13:20:17,026 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 171.0) internal successors, (342), 2 states have internal predecessors, (342), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 2 states have call successors, (7) Word has length 374 [2023-12-25 13:20:17,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 13:20:17,040 INFO L225 Difference]: With dead ends: 1612 [2023-12-25 13:20:17,041 INFO L226 Difference]: Without dead ends: 873 [2023-12-25 13:20:17,046 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-25 13:20:17,049 INFO L413 NwaCegarLoop]: 1444 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1444 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 13:20:17,050 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1444 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 13:20:17,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 873 states. [2023-12-25 13:20:17,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 873 to 873. [2023-12-25 13:20:17,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 873 states, 864 states have (on average 1.65625) internal successors, (1431), 864 states have internal predecessors, (1431), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2023-12-25 13:20:17,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 873 states to 873 states and 1445 transitions. [2023-12-25 13:20:17,115 INFO L78 Accepts]: Start accepts. Automaton has 873 states and 1445 transitions. Word has length 374 [2023-12-25 13:20:17,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 13:20:17,117 INFO L495 AbstractCegarLoop]: Abstraction has 873 states and 1445 transitions. [2023-12-25 13:20:17,117 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 171.0) internal successors, (342), 2 states have internal predecessors, (342), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-25 13:20:17,117 INFO L276 IsEmpty]: Start isEmpty. Operand 873 states and 1445 transitions. [2023-12-25 13:20:17,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 375 [2023-12-25 13:20:17,120 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 13:20:17,121 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 13:20:17,121 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-25 13:20:17,121 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 13:20:17,122 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 13:20:17,122 INFO L85 PathProgramCache]: Analyzing trace with hash -1086781975, now seen corresponding path program 1 times [2023-12-25 13:20:17,122 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-25 13:20:17,123 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1619083951] [2023-12-25 13:20:17,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 13:20:17,123 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-25 13:20:17,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:20:18,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2023-12-25 13:20:18,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:20:18,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-12-25 13:20:18,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:20:18,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2023-12-25 13:20:18,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:20:18,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2023-12-25 13:20:18,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:20:18,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2023-12-25 13:20:18,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:20:18,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2023-12-25 13:20:18,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:20:18,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2023-12-25 13:20:18,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:20:18,429 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2023-12-25 13:20:18,429 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-25 13:20:18,429 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1619083951] [2023-12-25 13:20:18,429 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1619083951] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 13:20:18,430 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 13:20:18,430 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 13:20:18,430 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [120214274] [2023-12-25 13:20:18,430 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 13:20:18,432 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 13:20:18,435 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-25 13:20:18,458 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 13:20:18,458 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 13:20:18,459 INFO L87 Difference]: Start difference. First operand 873 states and 1445 transitions. Second operand has 4 states, 4 states have (on average 85.5) internal successors, (342), 4 states have internal predecessors, (342), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-12-25 13:20:18,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 13:20:18,985 INFO L93 Difference]: Finished difference Result 1610 states and 2664 transitions. [2023-12-25 13:20:18,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 13:20:18,985 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 85.5) internal successors, (342), 4 states have internal predecessors, (342), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 374 [2023-12-25 13:20:18,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 13:20:18,990 INFO L225 Difference]: With dead ends: 1610 [2023-12-25 13:20:18,991 INFO L226 Difference]: Without dead ends: 873 [2023-12-25 13:20:18,992 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-25 13:20:18,993 INFO L413 NwaCegarLoop]: 1126 mSDtfsCounter, 1178 mSDsluCounter, 1128 mSDsCounter, 0 mSdLazyCounter, 639 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1178 SdHoareTripleChecker+Valid, 2254 SdHoareTripleChecker+Invalid, 640 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 639 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-25 13:20:18,994 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1178 Valid, 2254 Invalid, 640 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 639 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-25 13:20:18,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 873 states. [2023-12-25 13:20:19,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 873 to 873. [2023-12-25 13:20:19,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 873 states, 864 states have (on average 1.6539351851851851) internal successors, (1429), 864 states have internal predecessors, (1429), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2023-12-25 13:20:19,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 873 states to 873 states and 1443 transitions. [2023-12-25 13:20:19,011 INFO L78 Accepts]: Start accepts. Automaton has 873 states and 1443 transitions. Word has length 374 [2023-12-25 13:20:19,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 13:20:19,014 INFO L495 AbstractCegarLoop]: Abstraction has 873 states and 1443 transitions. [2023-12-25 13:20:19,014 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 85.5) internal successors, (342), 4 states have internal predecessors, (342), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-12-25 13:20:19,014 INFO L276 IsEmpty]: Start isEmpty. Operand 873 states and 1443 transitions. [2023-12-25 13:20:19,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 376 [2023-12-25 13:20:19,017 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 13:20:19,017 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 13:20:19,017 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-25 13:20:19,017 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 13:20:19,018 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 13:20:19,018 INFO L85 PathProgramCache]: Analyzing trace with hash -1481555771, now seen corresponding path program 1 times [2023-12-25 13:20:19,018 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-25 13:20:19,018 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [523979341] [2023-12-25 13:20:19,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 13:20:19,019 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-25 13:20:19,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:20:19,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2023-12-25 13:20:19,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:20:19,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-12-25 13:20:19,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:20:19,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2023-12-25 13:20:19,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:20:19,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2023-12-25 13:20:19,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:20:19,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2023-12-25 13:20:19,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:20:19,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2023-12-25 13:20:19,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:20:19,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2023-12-25 13:20:19,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:20:19,673 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2023-12-25 13:20:19,673 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-25 13:20:19,674 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [523979341] [2023-12-25 13:20:19,674 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [523979341] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 13:20:19,674 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 13:20:19,674 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 13:20:19,674 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1290082093] [2023-12-25 13:20:19,674 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 13:20:19,674 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 13:20:19,675 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-25 13:20:19,675 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 13:20:19,677 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-25 13:20:19,677 INFO L87 Difference]: Start difference. First operand 873 states and 1443 transitions. Second operand has 5 states, 5 states have (on average 68.6) internal successors, (343), 5 states have internal predecessors, (343), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-12-25 13:20:20,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 13:20:20,103 INFO L93 Difference]: Finished difference Result 1725 states and 2850 transitions. [2023-12-25 13:20:20,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-25 13:20:20,103 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 68.6) internal successors, (343), 5 states have internal predecessors, (343), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 375 [2023-12-25 13:20:20,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 13:20:20,106 INFO L225 Difference]: With dead ends: 1725 [2023-12-25 13:20:20,106 INFO L226 Difference]: Without dead ends: 873 [2023-12-25 13:20:20,109 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-12-25 13:20:20,110 INFO L413 NwaCegarLoop]: 1423 mSDtfsCounter, 1557 mSDsluCounter, 2558 mSDsCounter, 0 mSdLazyCounter, 352 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1557 SdHoareTripleChecker+Valid, 3981 SdHoareTripleChecker+Invalid, 353 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 352 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-25 13:20:20,111 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1557 Valid, 3981 Invalid, 353 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 352 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-25 13:20:20,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 873 states. [2023-12-25 13:20:20,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 873 to 873. [2023-12-25 13:20:20,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 873 states, 864 states have (on average 1.6527777777777777) internal successors, (1428), 864 states have internal predecessors, (1428), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2023-12-25 13:20:20,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 873 states to 873 states and 1442 transitions. [2023-12-25 13:20:20,126 INFO L78 Accepts]: Start accepts. Automaton has 873 states and 1442 transitions. Word has length 375 [2023-12-25 13:20:20,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 13:20:20,126 INFO L495 AbstractCegarLoop]: Abstraction has 873 states and 1442 transitions. [2023-12-25 13:20:20,127 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 68.6) internal successors, (343), 5 states have internal predecessors, (343), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-12-25 13:20:20,127 INFO L276 IsEmpty]: Start isEmpty. Operand 873 states and 1442 transitions. [2023-12-25 13:20:20,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 377 [2023-12-25 13:20:20,130 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 13:20:20,130 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 13:20:20,130 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-25 13:20:20,131 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 13:20:20,131 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 13:20:20,131 INFO L85 PathProgramCache]: Analyzing trace with hash -187819553, now seen corresponding path program 1 times [2023-12-25 13:20:20,131 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-25 13:20:20,132 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1054110598] [2023-12-25 13:20:20,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 13:20:20,132 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-25 13:20:20,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:20:21,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2023-12-25 13:20:21,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:20:21,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-12-25 13:20:21,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:20:21,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2023-12-25 13:20:21,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:20:21,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2023-12-25 13:20:21,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:20:21,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2023-12-25 13:20:21,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:20:21,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2023-12-25 13:20:21,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:20:21,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2023-12-25 13:20:21,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:20:21,077 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2023-12-25 13:20:21,077 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-25 13:20:21,077 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1054110598] [2023-12-25 13:20:21,077 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1054110598] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 13:20:21,077 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 13:20:21,077 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 13:20:21,077 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [835527651] [2023-12-25 13:20:21,077 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 13:20:21,078 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 13:20:21,078 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-25 13:20:21,078 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 13:20:21,078 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 13:20:21,079 INFO L87 Difference]: Start difference. First operand 873 states and 1442 transitions. Second operand has 4 states, 4 states have (on average 86.0) internal successors, (344), 4 states have internal predecessors, (344), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-12-25 13:20:21,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 13:20:21,242 INFO L93 Difference]: Finished difference Result 1610 states and 2658 transitions. [2023-12-25 13:20:21,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 13:20:21,243 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 86.0) internal successors, (344), 4 states have internal predecessors, (344), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 376 [2023-12-25 13:20:21,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 13:20:21,246 INFO L225 Difference]: With dead ends: 1610 [2023-12-25 13:20:21,246 INFO L226 Difference]: Without dead ends: 873 [2023-12-25 13:20:21,247 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-25 13:20:21,251 INFO L413 NwaCegarLoop]: 1365 mSDtfsCounter, 1163 mSDsluCounter, 1367 mSDsCounter, 0 mSdLazyCounter, 156 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1163 SdHoareTripleChecker+Valid, 2732 SdHoareTripleChecker+Invalid, 156 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 156 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 13:20:21,251 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1163 Valid, 2732 Invalid, 156 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 156 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 13:20:21,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 873 states. [2023-12-25 13:20:21,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 873 to 873. [2023-12-25 13:20:21,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 873 states, 864 states have (on average 1.6516203703703705) internal successors, (1427), 864 states have internal predecessors, (1427), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2023-12-25 13:20:21,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 873 states to 873 states and 1441 transitions. [2023-12-25 13:20:21,267 INFO L78 Accepts]: Start accepts. Automaton has 873 states and 1441 transitions. Word has length 376 [2023-12-25 13:20:21,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 13:20:21,267 INFO L495 AbstractCegarLoop]: Abstraction has 873 states and 1441 transitions. [2023-12-25 13:20:21,268 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 86.0) internal successors, (344), 4 states have internal predecessors, (344), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-12-25 13:20:21,268 INFO L276 IsEmpty]: Start isEmpty. Operand 873 states and 1441 transitions. [2023-12-25 13:20:21,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 378 [2023-12-25 13:20:21,271 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 13:20:21,271 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 13:20:21,271 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-25 13:20:21,271 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 13:20:21,272 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 13:20:21,272 INFO L85 PathProgramCache]: Analyzing trace with hash -1731632597, now seen corresponding path program 1 times [2023-12-25 13:20:21,272 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-25 13:20:21,272 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1413246735] [2023-12-25 13:20:21,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 13:20:21,272 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-25 13:20:21,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:20:21,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2023-12-25 13:20:21,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:20:21,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-12-25 13:20:21,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:20:21,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2023-12-25 13:20:21,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:20:21,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2023-12-25 13:20:21,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:20:21,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2023-12-25 13:20:21,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:20:21,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2023-12-25 13:20:21,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:20:21,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2023-12-25 13:20:21,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:20:21,786 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2023-12-25 13:20:21,787 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-25 13:20:21,787 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1413246735] [2023-12-25 13:20:21,787 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1413246735] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 13:20:21,787 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 13:20:21,787 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 13:20:21,787 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1469449663] [2023-12-25 13:20:21,787 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 13:20:21,788 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 13:20:21,788 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-25 13:20:21,789 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 13:20:21,789 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-25 13:20:21,789 INFO L87 Difference]: Start difference. First operand 873 states and 1441 transitions. Second operand has 5 states, 5 states have (on average 69.0) internal successors, (345), 5 states have internal predecessors, (345), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-12-25 13:20:21,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 13:20:21,940 INFO L93 Difference]: Finished difference Result 1728 states and 2847 transitions. [2023-12-25 13:20:21,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-25 13:20:21,940 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 69.0) internal successors, (345), 5 states have internal predecessors, (345), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 377 [2023-12-25 13:20:21,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 13:20:21,943 INFO L225 Difference]: With dead ends: 1728 [2023-12-25 13:20:21,943 INFO L226 Difference]: Without dead ends: 873 [2023-12-25 13:20:21,944 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-12-25 13:20:21,944 INFO L413 NwaCegarLoop]: 1425 mSDtfsCounter, 1531 mSDsluCounter, 2799 mSDsCounter, 0 mSdLazyCounter, 103 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1531 SdHoareTripleChecker+Valid, 4224 SdHoareTripleChecker+Invalid, 110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 13:20:21,944 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1531 Valid, 4224 Invalid, 110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 103 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 13:20:21,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 873 states. [2023-12-25 13:20:21,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 873 to 873. [2023-12-25 13:20:21,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 873 states, 864 states have (on average 1.650462962962963) internal successors, (1426), 864 states have internal predecessors, (1426), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2023-12-25 13:20:21,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 873 states to 873 states and 1440 transitions. [2023-12-25 13:20:21,957 INFO L78 Accepts]: Start accepts. Automaton has 873 states and 1440 transitions. Word has length 377 [2023-12-25 13:20:21,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 13:20:21,957 INFO L495 AbstractCegarLoop]: Abstraction has 873 states and 1440 transitions. [2023-12-25 13:20:21,958 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 69.0) internal successors, (345), 5 states have internal predecessors, (345), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-12-25 13:20:21,958 INFO L276 IsEmpty]: Start isEmpty. Operand 873 states and 1440 transitions. [2023-12-25 13:20:21,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 379 [2023-12-25 13:20:21,972 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 13:20:21,972 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 13:20:21,972 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-25 13:20:21,972 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 13:20:21,973 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 13:20:21,973 INFO L85 PathProgramCache]: Analyzing trace with hash -372090157, now seen corresponding path program 1 times [2023-12-25 13:20:21,973 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-25 13:20:21,973 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1038638319] [2023-12-25 13:20:21,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 13:20:21,973 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-25 13:20:22,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:20:22,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2023-12-25 13:20:22,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:20:22,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-12-25 13:20:22,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:20:22,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2023-12-25 13:20:22,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:20:22,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2023-12-25 13:20:22,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:20:22,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2023-12-25 13:20:22,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:20:22,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2023-12-25 13:20:22,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:20:22,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2023-12-25 13:20:22,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:20:22,469 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2023-12-25 13:20:22,469 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-25 13:20:22,469 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1038638319] [2023-12-25 13:20:22,469 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1038638319] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 13:20:22,469 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 13:20:22,469 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 13:20:22,469 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [169408772] [2023-12-25 13:20:22,469 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 13:20:22,470 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 13:20:22,470 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-25 13:20:22,470 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 13:20:22,470 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-25 13:20:22,471 INFO L87 Difference]: Start difference. First operand 873 states and 1440 transitions. Second operand has 5 states, 5 states have (on average 69.2) internal successors, (346), 5 states have internal predecessors, (346), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-12-25 13:20:22,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 13:20:22,629 INFO L93 Difference]: Finished difference Result 1610 states and 2654 transitions. [2023-12-25 13:20:22,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 13:20:22,630 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 69.2) internal successors, (346), 5 states have internal predecessors, (346), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 378 [2023-12-25 13:20:22,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 13:20:22,632 INFO L225 Difference]: With dead ends: 1610 [2023-12-25 13:20:22,632 INFO L226 Difference]: Without dead ends: 873 [2023-12-25 13:20:22,634 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-12-25 13:20:22,634 INFO L413 NwaCegarLoop]: 1365 mSDtfsCounter, 1422 mSDsluCounter, 1377 mSDsCounter, 0 mSdLazyCounter, 152 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1429 SdHoareTripleChecker+Valid, 2742 SdHoareTripleChecker+Invalid, 153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 152 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 13:20:22,634 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1429 Valid, 2742 Invalid, 153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 152 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 13:20:22,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 873 states. [2023-12-25 13:20:22,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 873 to 873. [2023-12-25 13:20:22,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 873 states, 864 states have (on average 1.6493055555555556) internal successors, (1425), 864 states have internal predecessors, (1425), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2023-12-25 13:20:22,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 873 states to 873 states and 1439 transitions. [2023-12-25 13:20:22,648 INFO L78 Accepts]: Start accepts. Automaton has 873 states and 1439 transitions. Word has length 378 [2023-12-25 13:20:22,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 13:20:22,649 INFO L495 AbstractCegarLoop]: Abstraction has 873 states and 1439 transitions. [2023-12-25 13:20:22,649 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 69.2) internal successors, (346), 5 states have internal predecessors, (346), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-12-25 13:20:22,649 INFO L276 IsEmpty]: Start isEmpty. Operand 873 states and 1439 transitions. [2023-12-25 13:20:22,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 380 [2023-12-25 13:20:22,652 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 13:20:22,652 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 13:20:22,652 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-12-25 13:20:22,652 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 13:20:22,652 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 13:20:22,652 INFO L85 PathProgramCache]: Analyzing trace with hash 1010717573, now seen corresponding path program 1 times [2023-12-25 13:20:22,652 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-25 13:20:22,652 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [678171281] [2023-12-25 13:20:22,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 13:20:22,653 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-25 13:20:22,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:20:23,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2023-12-25 13:20:23,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:20:23,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-12-25 13:20:23,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:20:23,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2023-12-25 13:20:23,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:20:23,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2023-12-25 13:20:23,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:20:23,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2023-12-25 13:20:23,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:20:23,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2023-12-25 13:20:23,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:20:23,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2023-12-25 13:20:23,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:20:23,116 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2023-12-25 13:20:23,116 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-25 13:20:23,116 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [678171281] [2023-12-25 13:20:23,116 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [678171281] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 13:20:23,116 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 13:20:23,116 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 13:20:23,117 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [160037585] [2023-12-25 13:20:23,117 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 13:20:23,117 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 13:20:23,117 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-25 13:20:23,118 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 13:20:23,118 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-25 13:20:23,118 INFO L87 Difference]: Start difference. First operand 873 states and 1439 transitions. Second operand has 5 states, 5 states have (on average 69.4) internal successors, (347), 5 states have internal predecessors, (347), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-12-25 13:20:23,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 13:20:23,273 INFO L93 Difference]: Finished difference Result 1610 states and 2652 transitions. [2023-12-25 13:20:23,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 13:20:23,274 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 69.4) internal successors, (347), 5 states have internal predecessors, (347), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 379 [2023-12-25 13:20:23,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 13:20:23,276 INFO L225 Difference]: With dead ends: 1610 [2023-12-25 13:20:23,276 INFO L226 Difference]: Without dead ends: 873 [2023-12-25 13:20:23,278 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-12-25 13:20:23,279 INFO L413 NwaCegarLoop]: 1365 mSDtfsCounter, 2654 mSDsluCounter, 1367 mSDsCounter, 0 mSdLazyCounter, 150 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2661 SdHoareTripleChecker+Valid, 2732 SdHoareTripleChecker+Invalid, 151 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 150 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 13:20:23,280 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2661 Valid, 2732 Invalid, 151 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 150 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 13:20:23,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 873 states. [2023-12-25 13:20:23,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 873 to 873. [2023-12-25 13:20:23,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 873 states, 864 states have (on average 1.6481481481481481) internal successors, (1424), 864 states have internal predecessors, (1424), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2023-12-25 13:20:23,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 873 states to 873 states and 1438 transitions. [2023-12-25 13:20:23,292 INFO L78 Accepts]: Start accepts. Automaton has 873 states and 1438 transitions. Word has length 379 [2023-12-25 13:20:23,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 13:20:23,293 INFO L495 AbstractCegarLoop]: Abstraction has 873 states and 1438 transitions. [2023-12-25 13:20:23,293 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 69.4) internal successors, (347), 5 states have internal predecessors, (347), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-12-25 13:20:23,293 INFO L276 IsEmpty]: Start isEmpty. Operand 873 states and 1438 transitions. [2023-12-25 13:20:23,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 381 [2023-12-25 13:20:23,296 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 13:20:23,296 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 13:20:23,296 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-12-25 13:20:23,296 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 13:20:23,299 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 13:20:23,299 INFO L85 PathProgramCache]: Analyzing trace with hash -1572430867, now seen corresponding path program 1 times [2023-12-25 13:20:23,299 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-25 13:20:23,299 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2072396959] [2023-12-25 13:20:23,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 13:20:23,299 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-25 13:20:23,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:20:23,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2023-12-25 13:20:23,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:20:23,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-12-25 13:20:23,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:20:23,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2023-12-25 13:20:23,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:20:23,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2023-12-25 13:20:23,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:20:23,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2023-12-25 13:20:23,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:20:23,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2023-12-25 13:20:23,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:20:23,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2023-12-25 13:20:23,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:20:23,775 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2023-12-25 13:20:23,775 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-25 13:20:23,775 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2072396959] [2023-12-25 13:20:23,775 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2072396959] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 13:20:23,775 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 13:20:23,775 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 13:20:23,775 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [954322742] [2023-12-25 13:20:23,776 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 13:20:23,776 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 13:20:23,776 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-25 13:20:23,777 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 13:20:23,777 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-25 13:20:23,777 INFO L87 Difference]: Start difference. First operand 873 states and 1438 transitions. Second operand has 5 states, 5 states have (on average 69.6) internal successors, (348), 5 states have internal predecessors, (348), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-12-25 13:20:23,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 13:20:23,928 INFO L93 Difference]: Finished difference Result 1610 states and 2650 transitions. [2023-12-25 13:20:23,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 13:20:23,929 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 69.6) internal successors, (348), 5 states have internal predecessors, (348), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 380 [2023-12-25 13:20:23,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 13:20:23,932 INFO L225 Difference]: With dead ends: 1610 [2023-12-25 13:20:23,932 INFO L226 Difference]: Without dead ends: 873 [2023-12-25 13:20:23,932 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-12-25 13:20:23,934 INFO L413 NwaCegarLoop]: 1365 mSDtfsCounter, 2646 mSDsluCounter, 1367 mSDsCounter, 0 mSdLazyCounter, 148 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2653 SdHoareTripleChecker+Valid, 2732 SdHoareTripleChecker+Invalid, 149 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 148 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 13:20:23,934 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2653 Valid, 2732 Invalid, 149 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 148 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 13:20:23,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 873 states. [2023-12-25 13:20:23,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 873 to 873. [2023-12-25 13:20:23,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 873 states, 864 states have (on average 1.6469907407407407) internal successors, (1423), 864 states have internal predecessors, (1423), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2023-12-25 13:20:23,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 873 states to 873 states and 1437 transitions. [2023-12-25 13:20:23,947 INFO L78 Accepts]: Start accepts. Automaton has 873 states and 1437 transitions. Word has length 380 [2023-12-25 13:20:23,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 13:20:23,947 INFO L495 AbstractCegarLoop]: Abstraction has 873 states and 1437 transitions. [2023-12-25 13:20:23,947 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 69.6) internal successors, (348), 5 states have internal predecessors, (348), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-12-25 13:20:23,947 INFO L276 IsEmpty]: Start isEmpty. Operand 873 states and 1437 transitions. [2023-12-25 13:20:23,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 382 [2023-12-25 13:20:23,951 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 13:20:23,951 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 13:20:23,951 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-12-25 13:20:23,951 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 13:20:23,952 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 13:20:23,952 INFO L85 PathProgramCache]: Analyzing trace with hash 358447583, now seen corresponding path program 1 times [2023-12-25 13:20:23,952 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-25 13:20:23,952 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1493802507] [2023-12-25 13:20:23,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 13:20:23,952 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-25 13:20:24,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:20:24,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2023-12-25 13:20:24,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:20:24,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-12-25 13:20:24,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:20:24,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2023-12-25 13:20:24,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:20:24,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2023-12-25 13:20:24,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:20:24,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2023-12-25 13:20:24,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:20:24,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2023-12-25 13:20:24,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:20:24,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2023-12-25 13:20:24,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:20:24,381 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2023-12-25 13:20:24,381 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-25 13:20:24,381 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1493802507] [2023-12-25 13:20:24,381 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1493802507] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 13:20:24,382 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 13:20:24,382 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 13:20:24,382 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [978448397] [2023-12-25 13:20:24,382 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 13:20:24,382 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 13:20:24,383 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-25 13:20:24,383 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 13:20:24,383 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-25 13:20:24,384 INFO L87 Difference]: Start difference. First operand 873 states and 1437 transitions. Second operand has 5 states, 5 states have (on average 69.8) internal successors, (349), 5 states have internal predecessors, (349), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-12-25 13:20:24,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 13:20:24,528 INFO L93 Difference]: Finished difference Result 1610 states and 2648 transitions. [2023-12-25 13:20:24,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 13:20:24,529 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 69.8) internal successors, (349), 5 states have internal predecessors, (349), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 381 [2023-12-25 13:20:24,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 13:20:24,531 INFO L225 Difference]: With dead ends: 1610 [2023-12-25 13:20:24,531 INFO L226 Difference]: Without dead ends: 873 [2023-12-25 13:20:24,532 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-12-25 13:20:24,534 INFO L413 NwaCegarLoop]: 1365 mSDtfsCounter, 2496 mSDsluCounter, 1367 mSDsCounter, 0 mSdLazyCounter, 146 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2503 SdHoareTripleChecker+Valid, 2732 SdHoareTripleChecker+Invalid, 147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 146 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 13:20:24,534 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2503 Valid, 2732 Invalid, 147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 146 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 13:20:24,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 873 states. [2023-12-25 13:20:24,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 873 to 873. [2023-12-25 13:20:24,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 873 states, 864 states have (on average 1.6458333333333333) internal successors, (1422), 864 states have internal predecessors, (1422), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2023-12-25 13:20:24,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 873 states to 873 states and 1436 transitions. [2023-12-25 13:20:24,547 INFO L78 Accepts]: Start accepts. Automaton has 873 states and 1436 transitions. Word has length 381 [2023-12-25 13:20:24,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 13:20:24,547 INFO L495 AbstractCegarLoop]: Abstraction has 873 states and 1436 transitions. [2023-12-25 13:20:24,547 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 69.8) internal successors, (349), 5 states have internal predecessors, (349), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-12-25 13:20:24,547 INFO L276 IsEmpty]: Start isEmpty. Operand 873 states and 1436 transitions. [2023-12-25 13:20:24,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 383 [2023-12-25 13:20:24,551 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 13:20:24,551 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 13:20:24,552 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-12-25 13:20:24,552 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 13:20:24,552 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 13:20:24,552 INFO L85 PathProgramCache]: Analyzing trace with hash -1333535495, now seen corresponding path program 1 times [2023-12-25 13:20:24,552 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-25 13:20:24,552 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1370774443] [2023-12-25 13:20:24,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 13:20:24,552 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-25 13:20:24,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:20:24,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2023-12-25 13:20:24,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:20:24,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-12-25 13:20:24,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:20:24,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2023-12-25 13:20:24,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:20:25,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2023-12-25 13:20:25,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:20:25,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2023-12-25 13:20:25,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:20:25,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2023-12-25 13:20:25,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:20:25,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2023-12-25 13:20:25,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:20:25,010 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2023-12-25 13:20:25,011 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-25 13:20:25,011 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1370774443] [2023-12-25 13:20:25,011 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1370774443] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 13:20:25,011 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 13:20:25,011 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 13:20:25,011 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2124314161] [2023-12-25 13:20:25,011 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 13:20:25,012 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 13:20:25,012 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-25 13:20:25,012 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 13:20:25,012 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-25 13:20:25,012 INFO L87 Difference]: Start difference. First operand 873 states and 1436 transitions. Second operand has 5 states, 5 states have (on average 70.0) internal successors, (350), 5 states have internal predecessors, (350), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-12-25 13:20:25,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 13:20:25,154 INFO L93 Difference]: Finished difference Result 1610 states and 2646 transitions. [2023-12-25 13:20:25,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 13:20:25,154 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 70.0) internal successors, (350), 5 states have internal predecessors, (350), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 382 [2023-12-25 13:20:25,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 13:20:25,157 INFO L225 Difference]: With dead ends: 1610 [2023-12-25 13:20:25,157 INFO L226 Difference]: Without dead ends: 873 [2023-12-25 13:20:25,158 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-12-25 13:20:25,158 INFO L413 NwaCegarLoop]: 1365 mSDtfsCounter, 1335 mSDsluCounter, 1377 mSDsCounter, 0 mSdLazyCounter, 144 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1342 SdHoareTripleChecker+Valid, 2742 SdHoareTripleChecker+Invalid, 145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 144 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 13:20:25,158 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1342 Valid, 2742 Invalid, 145 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 144 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 13:20:25,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 873 states. [2023-12-25 13:20:25,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 873 to 873. [2023-12-25 13:20:25,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 873 states, 864 states have (on average 1.6446759259259258) internal successors, (1421), 864 states have internal predecessors, (1421), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2023-12-25 13:20:25,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 873 states to 873 states and 1435 transitions. [2023-12-25 13:20:25,171 INFO L78 Accepts]: Start accepts. Automaton has 873 states and 1435 transitions. Word has length 382 [2023-12-25 13:20:25,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 13:20:25,172 INFO L495 AbstractCegarLoop]: Abstraction has 873 states and 1435 transitions. [2023-12-25 13:20:25,172 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 70.0) internal successors, (350), 5 states have internal predecessors, (350), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-12-25 13:20:25,172 INFO L276 IsEmpty]: Start isEmpty. Operand 873 states and 1435 transitions. [2023-12-25 13:20:25,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 384 [2023-12-25 13:20:25,174 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 13:20:25,174 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 13:20:25,174 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-12-25 13:20:25,174 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 13:20:25,174 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 13:20:25,175 INFO L85 PathProgramCache]: Analyzing trace with hash -739227643, now seen corresponding path program 1 times [2023-12-25 13:20:25,175 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-25 13:20:25,175 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2044544025] [2023-12-25 13:20:25,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 13:20:25,175 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-25 13:20:25,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:20:25,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2023-12-25 13:20:25,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:20:25,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-12-25 13:20:25,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:20:25,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2023-12-25 13:20:25,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:20:25,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2023-12-25 13:20:25,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:20:25,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2023-12-25 13:20:25,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:20:25,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2023-12-25 13:20:25,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:20:25,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2023-12-25 13:20:25,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:20:25,608 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2023-12-25 13:20:25,608 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-25 13:20:25,608 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2044544025] [2023-12-25 13:20:25,608 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2044544025] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 13:20:25,608 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 13:20:25,608 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 13:20:25,608 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1793210341] [2023-12-25 13:20:25,608 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 13:20:25,609 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 13:20:25,609 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-25 13:20:25,610 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 13:20:25,610 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-25 13:20:25,610 INFO L87 Difference]: Start difference. First operand 873 states and 1435 transitions. Second operand has 5 states, 5 states have (on average 70.2) internal successors, (351), 5 states have internal predecessors, (351), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-12-25 13:20:25,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 13:20:25,755 INFO L93 Difference]: Finished difference Result 1610 states and 2644 transitions. [2023-12-25 13:20:25,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 13:20:25,755 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 70.2) internal successors, (351), 5 states have internal predecessors, (351), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 383 [2023-12-25 13:20:25,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 13:20:25,758 INFO L225 Difference]: With dead ends: 1610 [2023-12-25 13:20:25,759 INFO L226 Difference]: Without dead ends: 873 [2023-12-25 13:20:25,759 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-12-25 13:20:25,760 INFO L413 NwaCegarLoop]: 1365 mSDtfsCounter, 2480 mSDsluCounter, 1367 mSDsCounter, 0 mSdLazyCounter, 142 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2487 SdHoareTripleChecker+Valid, 2732 SdHoareTripleChecker+Invalid, 143 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 142 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 13:20:25,760 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2487 Valid, 2732 Invalid, 143 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 142 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 13:20:25,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 873 states. [2023-12-25 13:20:25,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 873 to 873. [2023-12-25 13:20:25,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 873 states, 864 states have (on average 1.6435185185185186) internal successors, (1420), 864 states have internal predecessors, (1420), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2023-12-25 13:20:25,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 873 states to 873 states and 1434 transitions. [2023-12-25 13:20:25,771 INFO L78 Accepts]: Start accepts. Automaton has 873 states and 1434 transitions. Word has length 383 [2023-12-25 13:20:25,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 13:20:25,771 INFO L495 AbstractCegarLoop]: Abstraction has 873 states and 1434 transitions. [2023-12-25 13:20:25,772 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 70.2) internal successors, (351), 5 states have internal predecessors, (351), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-12-25 13:20:25,772 INFO L276 IsEmpty]: Start isEmpty. Operand 873 states and 1434 transitions. [2023-12-25 13:20:25,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 385 [2023-12-25 13:20:25,773 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 13:20:25,774 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 13:20:25,774 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-12-25 13:20:25,774 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 13:20:25,774 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 13:20:25,774 INFO L85 PathProgramCache]: Analyzing trace with hash -1138677025, now seen corresponding path program 1 times [2023-12-25 13:20:25,774 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-25 13:20:25,774 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1503011284] [2023-12-25 13:20:25,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 13:20:25,774 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-25 13:20:25,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:20:26,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2023-12-25 13:20:26,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:20:26,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-12-25 13:20:26,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:20:26,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2023-12-25 13:20:26,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:20:26,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2023-12-25 13:20:26,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:20:26,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2023-12-25 13:20:26,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:20:26,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2023-12-25 13:20:26,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:20:26,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2023-12-25 13:20:26,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:20:26,516 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2023-12-25 13:20:26,517 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-25 13:20:26,517 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1503011284] [2023-12-25 13:20:26,517 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1503011284] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 13:20:26,517 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 13:20:26,517 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 13:20:26,517 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1921582432] [2023-12-25 13:20:26,517 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 13:20:26,517 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 13:20:26,517 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-25 13:20:26,518 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 13:20:26,518 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 13:20:26,518 INFO L87 Difference]: Start difference. First operand 873 states and 1434 transitions. Second operand has 4 states, 4 states have (on average 88.0) internal successors, (352), 4 states have internal predecessors, (352), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-12-25 13:20:26,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 13:20:26,608 INFO L93 Difference]: Finished difference Result 1610 states and 2642 transitions. [2023-12-25 13:20:26,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 13:20:26,609 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 88.0) internal successors, (352), 4 states have internal predecessors, (352), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 384 [2023-12-25 13:20:26,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 13:20:26,611 INFO L225 Difference]: With dead ends: 1610 [2023-12-25 13:20:26,611 INFO L226 Difference]: Without dead ends: 873 [2023-12-25 13:20:26,612 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-25 13:20:26,613 INFO L413 NwaCegarLoop]: 1389 mSDtfsCounter, 1242 mSDsluCounter, 1391 mSDsCounter, 0 mSdLazyCounter, 92 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1242 SdHoareTripleChecker+Valid, 2780 SdHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 92 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 13:20:26,613 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1242 Valid, 2780 Invalid, 92 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 92 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 13:20:26,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 873 states. [2023-12-25 13:20:26,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 873 to 873. [2023-12-25 13:20:26,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 873 states, 864 states have (on average 1.6423611111111112) internal successors, (1419), 864 states have internal predecessors, (1419), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2023-12-25 13:20:26,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 873 states to 873 states and 1433 transitions. [2023-12-25 13:20:26,637 INFO L78 Accepts]: Start accepts. Automaton has 873 states and 1433 transitions. Word has length 384 [2023-12-25 13:20:26,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 13:20:26,637 INFO L495 AbstractCegarLoop]: Abstraction has 873 states and 1433 transitions. [2023-12-25 13:20:26,637 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 88.0) internal successors, (352), 4 states have internal predecessors, (352), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-12-25 13:20:26,637 INFO L276 IsEmpty]: Start isEmpty. Operand 873 states and 1433 transitions. [2023-12-25 13:20:26,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 386 [2023-12-25 13:20:26,639 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 13:20:26,639 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 13:20:26,639 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-12-25 13:20:26,639 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 13:20:26,640 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 13:20:26,640 INFO L85 PathProgramCache]: Analyzing trace with hash -1258079151, now seen corresponding path program 1 times [2023-12-25 13:20:26,640 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-25 13:20:26,640 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1535343719] [2023-12-25 13:20:26,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 13:20:26,640 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-25 13:20:26,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:20:27,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2023-12-25 13:20:27,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:20:27,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-12-25 13:20:27,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:20:27,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2023-12-25 13:20:27,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:20:27,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2023-12-25 13:20:27,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:20:27,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2023-12-25 13:20:27,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:20:27,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2023-12-25 13:20:27,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:20:27,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2023-12-25 13:20:27,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:20:27,102 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2023-12-25 13:20:27,103 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-25 13:20:27,103 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1535343719] [2023-12-25 13:20:27,103 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1535343719] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 13:20:27,103 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 13:20:27,103 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 13:20:27,103 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [667359884] [2023-12-25 13:20:27,103 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 13:20:27,103 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 13:20:27,104 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-25 13:20:27,104 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 13:20:27,104 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-25 13:20:27,105 INFO L87 Difference]: Start difference. First operand 873 states and 1433 transitions. Second operand has 5 states, 5 states have (on average 70.6) internal successors, (353), 5 states have internal predecessors, (353), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-12-25 13:20:27,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 13:20:27,203 INFO L93 Difference]: Finished difference Result 1612 states and 2642 transitions. [2023-12-25 13:20:27,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-25 13:20:27,204 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 70.6) internal successors, (353), 5 states have internal predecessors, (353), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 385 [2023-12-25 13:20:27,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 13:20:27,206 INFO L225 Difference]: With dead ends: 1612 [2023-12-25 13:20:27,206 INFO L226 Difference]: Without dead ends: 873 [2023-12-25 13:20:27,207 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-12-25 13:20:27,207 INFO L413 NwaCegarLoop]: 1424 mSDtfsCounter, 1246 mSDsluCounter, 2822 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1246 SdHoareTripleChecker+Valid, 4246 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 13:20:27,207 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1246 Valid, 4246 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 13:20:27,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 873 states. [2023-12-25 13:20:27,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 873 to 873. [2023-12-25 13:20:27,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 873 states, 864 states have (on average 1.6412037037037037) internal successors, (1418), 864 states have internal predecessors, (1418), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2023-12-25 13:20:27,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 873 states to 873 states and 1432 transitions. [2023-12-25 13:20:27,219 INFO L78 Accepts]: Start accepts. Automaton has 873 states and 1432 transitions. Word has length 385 [2023-12-25 13:20:27,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 13:20:27,220 INFO L495 AbstractCegarLoop]: Abstraction has 873 states and 1432 transitions. [2023-12-25 13:20:27,220 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 70.6) internal successors, (353), 5 states have internal predecessors, (353), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-12-25 13:20:27,220 INFO L276 IsEmpty]: Start isEmpty. Operand 873 states and 1432 transitions. [2023-12-25 13:20:27,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 387 [2023-12-25 13:20:27,223 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 13:20:27,223 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 13:20:27,223 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-12-25 13:20:27,223 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 13:20:27,223 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 13:20:27,223 INFO L85 PathProgramCache]: Analyzing trace with hash -1176030267, now seen corresponding path program 1 times [2023-12-25 13:20:27,224 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-25 13:20:27,224 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [233965363] [2023-12-25 13:20:27,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 13:20:27,224 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-25 13:20:27,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:20:27,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2023-12-25 13:20:27,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:20:27,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-12-25 13:20:27,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:20:27,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2023-12-25 13:20:27,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:20:27,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2023-12-25 13:20:27,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:20:27,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2023-12-25 13:20:27,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:20:27,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2023-12-25 13:20:27,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:20:27,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2023-12-25 13:20:27,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:20:27,700 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2023-12-25 13:20:27,700 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-25 13:20:27,701 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [233965363] [2023-12-25 13:20:27,701 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [233965363] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 13:20:27,701 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 13:20:27,701 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 13:20:27,701 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [16849698] [2023-12-25 13:20:27,701 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 13:20:27,701 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 13:20:27,701 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-25 13:20:27,702 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 13:20:27,702 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-25 13:20:27,702 INFO L87 Difference]: Start difference. First operand 873 states and 1432 transitions. Second operand has 5 states, 5 states have (on average 70.8) internal successors, (354), 5 states have internal predecessors, (354), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-12-25 13:20:27,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 13:20:27,796 INFO L93 Difference]: Finished difference Result 1610 states and 2638 transitions. [2023-12-25 13:20:27,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 13:20:27,796 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 70.8) internal successors, (354), 5 states have internal predecessors, (354), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 386 [2023-12-25 13:20:27,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 13:20:27,799 INFO L225 Difference]: With dead ends: 1610 [2023-12-25 13:20:27,799 INFO L226 Difference]: Without dead ends: 873 [2023-12-25 13:20:27,800 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-12-25 13:20:27,800 INFO L413 NwaCegarLoop]: 1389 mSDtfsCounter, 2486 mSDsluCounter, 1391 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2493 SdHoareTripleChecker+Valid, 2780 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 13:20:27,800 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2493 Valid, 2780 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 13:20:27,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 873 states. [2023-12-25 13:20:27,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 873 to 873. [2023-12-25 13:20:27,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 873 states, 864 states have (on average 1.6400462962962963) internal successors, (1417), 864 states have internal predecessors, (1417), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2023-12-25 13:20:27,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 873 states to 873 states and 1431 transitions. [2023-12-25 13:20:27,812 INFO L78 Accepts]: Start accepts. Automaton has 873 states and 1431 transitions. Word has length 386 [2023-12-25 13:20:27,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 13:20:27,813 INFO L495 AbstractCegarLoop]: Abstraction has 873 states and 1431 transitions. [2023-12-25 13:20:27,813 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 70.8) internal successors, (354), 5 states have internal predecessors, (354), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-12-25 13:20:27,813 INFO L276 IsEmpty]: Start isEmpty. Operand 873 states and 1431 transitions. [2023-12-25 13:20:27,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 388 [2023-12-25 13:20:27,815 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 13:20:27,815 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 13:20:27,815 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-12-25 13:20:27,815 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 13:20:27,815 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 13:20:27,815 INFO L85 PathProgramCache]: Analyzing trace with hash 1723839019, now seen corresponding path program 1 times [2023-12-25 13:20:27,816 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-25 13:20:27,816 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [36590384] [2023-12-25 13:20:27,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 13:20:27,816 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-25 13:20:27,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:20:28,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2023-12-25 13:20:28,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:20:28,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-12-25 13:20:28,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:20:28,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2023-12-25 13:20:28,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:20:28,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2023-12-25 13:20:28,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:20:28,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2023-12-25 13:20:28,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:20:28,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2023-12-25 13:20:28,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:20:28,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2023-12-25 13:20:28,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:20:28,340 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2023-12-25 13:20:28,340 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-25 13:20:28,340 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [36590384] [2023-12-25 13:20:28,340 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [36590384] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 13:20:28,340 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 13:20:28,340 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 13:20:28,340 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [500661747] [2023-12-25 13:20:28,340 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 13:20:28,341 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 13:20:28,341 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-25 13:20:28,341 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 13:20:28,341 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-25 13:20:28,341 INFO L87 Difference]: Start difference. First operand 873 states and 1431 transitions. Second operand has 5 states, 5 states have (on average 71.0) internal successors, (355), 5 states have internal predecessors, (355), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-12-25 13:20:28,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 13:20:28,430 INFO L93 Difference]: Finished difference Result 1610 states and 2636 transitions. [2023-12-25 13:20:28,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 13:20:28,431 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 71.0) internal successors, (355), 5 states have internal predecessors, (355), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 387 [2023-12-25 13:20:28,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 13:20:28,433 INFO L225 Difference]: With dead ends: 1610 [2023-12-25 13:20:28,433 INFO L226 Difference]: Without dead ends: 873 [2023-12-25 13:20:28,435 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-12-25 13:20:28,436 INFO L413 NwaCegarLoop]: 1389 mSDtfsCounter, 2478 mSDsluCounter, 1391 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2485 SdHoareTripleChecker+Valid, 2780 SdHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 13:20:28,436 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2485 Valid, 2780 Invalid, 87 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 13:20:28,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 873 states. [2023-12-25 13:20:28,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 873 to 873. [2023-12-25 13:20:28,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 873 states, 864 states have (on average 1.6388888888888888) internal successors, (1416), 864 states have internal predecessors, (1416), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2023-12-25 13:20:28,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 873 states to 873 states and 1430 transitions. [2023-12-25 13:20:28,447 INFO L78 Accepts]: Start accepts. Automaton has 873 states and 1430 transitions. Word has length 387 [2023-12-25 13:20:28,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 13:20:28,447 INFO L495 AbstractCegarLoop]: Abstraction has 873 states and 1430 transitions. [2023-12-25 13:20:28,448 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 71.0) internal successors, (355), 5 states have internal predecessors, (355), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-12-25 13:20:28,448 INFO L276 IsEmpty]: Start isEmpty. Operand 873 states and 1430 transitions. [2023-12-25 13:20:28,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 389 [2023-12-25 13:20:28,449 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 13:20:28,449 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 13:20:28,450 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-12-25 13:20:28,450 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 13:20:28,450 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 13:20:28,450 INFO L85 PathProgramCache]: Analyzing trace with hash 559130335, now seen corresponding path program 1 times [2023-12-25 13:20:28,450 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-25 13:20:28,450 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [849842477] [2023-12-25 13:20:28,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 13:20:28,450 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-25 13:20:28,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:20:29,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2023-12-25 13:20:29,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:20:29,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-12-25 13:20:29,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:20:29,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2023-12-25 13:20:29,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:20:29,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2023-12-25 13:20:29,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:20:29,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2023-12-25 13:20:29,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:20:29,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2023-12-25 13:20:29,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:20:29,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2023-12-25 13:20:29,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:20:29,482 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2023-12-25 13:20:29,482 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-25 13:20:29,482 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [849842477] [2023-12-25 13:20:29,483 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [849842477] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 13:20:29,483 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 13:20:29,483 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-25 13:20:29,483 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1881515153] [2023-12-25 13:20:29,483 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 13:20:29,484 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-25 13:20:29,484 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-25 13:20:29,485 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-25 13:20:29,485 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-25 13:20:29,485 INFO L87 Difference]: Start difference. First operand 873 states and 1430 transitions. Second operand has 6 states, 6 states have (on average 59.333333333333336) internal successors, (356), 6 states have internal predecessors, (356), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-25 13:20:29,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 13:20:29,913 INFO L93 Difference]: Finished difference Result 2439 states and 3988 transitions. [2023-12-25 13:20:29,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-25 13:20:29,914 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 59.333333333333336) internal successors, (356), 6 states have internal predecessors, (356), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 388 [2023-12-25 13:20:29,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 13:20:29,919 INFO L225 Difference]: With dead ends: 2439 [2023-12-25 13:20:29,919 INFO L226 Difference]: Without dead ends: 1619 [2023-12-25 13:20:29,920 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2023-12-25 13:20:29,920 INFO L413 NwaCegarLoop]: 1480 mSDtfsCounter, 1281 mSDsluCounter, 5510 mSDsCounter, 0 mSdLazyCounter, 367 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1286 SdHoareTripleChecker+Valid, 6990 SdHoareTripleChecker+Invalid, 379 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 367 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-25 13:20:29,921 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1286 Valid, 6990 Invalid, 379 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 367 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-25 13:20:29,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1619 states. [2023-12-25 13:20:29,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1619 to 919. [2023-12-25 13:20:29,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 919 states, 908 states have (on average 1.6365638766519823) internal successors, (1486), 908 states have internal predecessors, (1486), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-12-25 13:20:29,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 919 states to 919 states and 1504 transitions. [2023-12-25 13:20:29,954 INFO L78 Accepts]: Start accepts. Automaton has 919 states and 1504 transitions. Word has length 388 [2023-12-25 13:20:29,954 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 13:20:29,954 INFO L495 AbstractCegarLoop]: Abstraction has 919 states and 1504 transitions. [2023-12-25 13:20:29,955 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 59.333333333333336) internal successors, (356), 6 states have internal predecessors, (356), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-25 13:20:29,955 INFO L276 IsEmpty]: Start isEmpty. Operand 919 states and 1504 transitions. [2023-12-25 13:20:29,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 390 [2023-12-25 13:20:29,958 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 13:20:29,958 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 13:20:29,958 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-12-25 13:20:29,958 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 13:20:29,958 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 13:20:29,958 INFO L85 PathProgramCache]: Analyzing trace with hash 2068743941, now seen corresponding path program 1 times [2023-12-25 13:20:29,959 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-25 13:20:29,959 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [633743658] [2023-12-25 13:20:29,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 13:20:29,959 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-25 13:20:30,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:20:31,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2023-12-25 13:20:31,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:20:31,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-12-25 13:20:31,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:20:31,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2023-12-25 13:20:31,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:20:31,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2023-12-25 13:20:31,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:20:31,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2023-12-25 13:20:31,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:20:31,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2023-12-25 13:20:31,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:20:31,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2023-12-25 13:20:31,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:20:31,405 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2023-12-25 13:20:31,405 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-25 13:20:31,406 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [633743658] [2023-12-25 13:20:31,406 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [633743658] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 13:20:31,406 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 13:20:31,406 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 13:20:31,406 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1619180895] [2023-12-25 13:20:31,406 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 13:20:31,407 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 13:20:31,407 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-25 13:20:31,408 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 13:20:31,408 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-25 13:20:31,408 INFO L87 Difference]: Start difference. First operand 919 states and 1504 transitions. Second operand has 5 states, 5 states have (on average 71.4) internal successors, (357), 5 states have internal predecessors, (357), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-25 13:20:31,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 13:20:31,930 INFO L93 Difference]: Finished difference Result 1660 states and 2714 transitions. [2023-12-25 13:20:31,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-25 13:20:31,932 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 71.4) internal successors, (357), 5 states have internal predecessors, (357), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 389 [2023-12-25 13:20:31,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 13:20:31,934 INFO L225 Difference]: With dead ends: 1660 [2023-12-25 13:20:31,934 INFO L226 Difference]: Without dead ends: 923 [2023-12-25 13:20:31,935 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-25 13:20:31,936 INFO L413 NwaCegarLoop]: 1128 mSDtfsCounter, 1274 mSDsluCounter, 2236 mSDsCounter, 0 mSdLazyCounter, 928 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1276 SdHoareTripleChecker+Valid, 3364 SdHoareTripleChecker+Invalid, 929 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 928 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-25 13:20:31,936 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1276 Valid, 3364 Invalid, 929 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 928 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-25 13:20:31,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 923 states. [2023-12-25 13:20:31,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 923 to 921. [2023-12-25 13:20:31,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 921 states, 910 states have (on average 1.6351648351648351) internal successors, (1488), 910 states have internal predecessors, (1488), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-12-25 13:20:31,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 921 states to 921 states and 1506 transitions. [2023-12-25 13:20:31,953 INFO L78 Accepts]: Start accepts. Automaton has 921 states and 1506 transitions. Word has length 389 [2023-12-25 13:20:31,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 13:20:31,953 INFO L495 AbstractCegarLoop]: Abstraction has 921 states and 1506 transitions. [2023-12-25 13:20:31,953 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 71.4) internal successors, (357), 5 states have internal predecessors, (357), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-25 13:20:31,954 INFO L276 IsEmpty]: Start isEmpty. Operand 921 states and 1506 transitions. [2023-12-25 13:20:31,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 391 [2023-12-25 13:20:31,955 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 13:20:31,955 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 13:20:31,956 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-12-25 13:20:31,956 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 13:20:31,956 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 13:20:31,956 INFO L85 PathProgramCache]: Analyzing trace with hash 1076043705, now seen corresponding path program 1 times [2023-12-25 13:20:31,956 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-25 13:20:31,956 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1533446448] [2023-12-25 13:20:31,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 13:20:31,956 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-25 13:20:32,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:20:33,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2023-12-25 13:20:33,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:20:33,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-12-25 13:20:33,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:20:33,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2023-12-25 13:20:33,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:20:33,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2023-12-25 13:20:33,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:20:33,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2023-12-25 13:20:33,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:20:33,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2023-12-25 13:20:33,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:20:33,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2023-12-25 13:20:33,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:20:33,236 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2023-12-25 13:20:33,236 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-25 13:20:33,236 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1533446448] [2023-12-25 13:20:33,236 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1533446448] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 13:20:33,237 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 13:20:33,237 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-25 13:20:33,237 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [726338756] [2023-12-25 13:20:33,237 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 13:20:33,237 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-25 13:20:33,237 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-25 13:20:33,238 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-25 13:20:33,238 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-12-25 13:20:33,238 INFO L87 Difference]: Start difference. First operand 921 states and 1506 transitions. Second operand has 6 states, 6 states have (on average 59.666666666666664) internal successors, (358), 6 states have internal predecessors, (358), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-25 13:20:34,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 13:20:34,582 INFO L93 Difference]: Finished difference Result 2391 states and 3909 transitions. [2023-12-25 13:20:34,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-25 13:20:34,582 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 59.666666666666664) internal successors, (358), 6 states have internal predecessors, (358), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 390 [2023-12-25 13:20:34,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 13:20:34,587 INFO L225 Difference]: With dead ends: 2391 [2023-12-25 13:20:34,587 INFO L226 Difference]: Without dead ends: 1652 [2023-12-25 13:20:34,589 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-12-25 13:20:34,589 INFO L413 NwaCegarLoop]: 2026 mSDtfsCounter, 2447 mSDsluCounter, 5133 mSDsCounter, 0 mSdLazyCounter, 2142 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2456 SdHoareTripleChecker+Valid, 7159 SdHoareTripleChecker+Invalid, 2145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 2142 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-12-25 13:20:34,589 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2456 Valid, 7159 Invalid, 2145 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 2142 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-12-25 13:20:34,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1652 states. [2023-12-25 13:20:34,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1652 to 919. [2023-12-25 13:20:34,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 919 states, 908 states have (on average 1.6354625550660793) internal successors, (1485), 908 states have internal predecessors, (1485), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-12-25 13:20:34,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 919 states to 919 states and 1503 transitions. [2023-12-25 13:20:34,608 INFO L78 Accepts]: Start accepts. Automaton has 919 states and 1503 transitions. Word has length 390 [2023-12-25 13:20:34,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 13:20:34,608 INFO L495 AbstractCegarLoop]: Abstraction has 919 states and 1503 transitions. [2023-12-25 13:20:34,609 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 59.666666666666664) internal successors, (358), 6 states have internal predecessors, (358), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-25 13:20:34,609 INFO L276 IsEmpty]: Start isEmpty. Operand 919 states and 1503 transitions. [2023-12-25 13:20:34,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 391 [2023-12-25 13:20:34,611 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 13:20:34,611 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 13:20:34,611 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-12-25 13:20:34,611 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 13:20:34,611 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 13:20:34,611 INFO L85 PathProgramCache]: Analyzing trace with hash 477298335, now seen corresponding path program 1 times [2023-12-25 13:20:34,611 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-25 13:20:34,612 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [236608038] [2023-12-25 13:20:34,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 13:20:34,612 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-25 13:20:35,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:20:35,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2023-12-25 13:20:35,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:20:35,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-12-25 13:20:35,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:20:35,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2023-12-25 13:20:35,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:20:35,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2023-12-25 13:20:35,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:20:35,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2023-12-25 13:20:35,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:20:35,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2023-12-25 13:20:35,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:20:35,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2023-12-25 13:20:35,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:20:35,403 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2023-12-25 13:20:35,403 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-25 13:20:35,403 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [236608038] [2023-12-25 13:20:35,403 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [236608038] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 13:20:35,404 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 13:20:35,404 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 13:20:35,404 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1823444375] [2023-12-25 13:20:35,404 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 13:20:35,405 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 13:20:35,405 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-25 13:20:35,406 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 13:20:35,406 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 13:20:35,406 INFO L87 Difference]: Start difference. First operand 919 states and 1503 transitions. Second operand has 4 states, 4 states have (on average 89.5) internal successors, (358), 4 states have internal predecessors, (358), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-12-25 13:20:35,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 13:20:35,487 INFO L93 Difference]: Finished difference Result 1656 states and 2706 transitions. [2023-12-25 13:20:35,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 13:20:35,487 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 89.5) internal successors, (358), 4 states have internal predecessors, (358), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 390 [2023-12-25 13:20:35,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 13:20:35,490 INFO L225 Difference]: With dead ends: 1656 [2023-12-25 13:20:35,490 INFO L226 Difference]: Without dead ends: 919 [2023-12-25 13:20:35,491 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-25 13:20:35,491 INFO L413 NwaCegarLoop]: 1388 mSDtfsCounter, 1236 mSDsluCounter, 1390 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1236 SdHoareTripleChecker+Valid, 2778 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 13:20:35,491 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1236 Valid, 2778 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 13:20:35,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 919 states. [2023-12-25 13:20:35,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 919 to 919. [2023-12-25 13:20:35,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 919 states, 908 states have (on average 1.6343612334801763) internal successors, (1484), 908 states have internal predecessors, (1484), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-12-25 13:20:35,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 919 states to 919 states and 1502 transitions. [2023-12-25 13:20:35,507 INFO L78 Accepts]: Start accepts. Automaton has 919 states and 1502 transitions. Word has length 390 [2023-12-25 13:20:35,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 13:20:35,508 INFO L495 AbstractCegarLoop]: Abstraction has 919 states and 1502 transitions. [2023-12-25 13:20:35,508 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 89.5) internal successors, (358), 4 states have internal predecessors, (358), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-12-25 13:20:35,508 INFO L276 IsEmpty]: Start isEmpty. Operand 919 states and 1502 transitions. [2023-12-25 13:20:35,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 391 [2023-12-25 13:20:35,511 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 13:20:35,511 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 13:20:35,511 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-12-25 13:20:35,512 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 13:20:35,512 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 13:20:35,512 INFO L85 PathProgramCache]: Analyzing trace with hash 2076447393, now seen corresponding path program 1 times [2023-12-25 13:20:35,512 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-25 13:20:35,512 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [460497114] [2023-12-25 13:20:35,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 13:20:35,512 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-25 13:20:35,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:20:36,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2023-12-25 13:20:36,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:20:36,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-12-25 13:20:36,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:20:36,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2023-12-25 13:20:36,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:20:36,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2023-12-25 13:20:36,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:20:36,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2023-12-25 13:20:36,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:20:36,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2023-12-25 13:20:36,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:20:36,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2023-12-25 13:20:36,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:20:36,190 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2023-12-25 13:20:36,190 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-25 13:20:36,190 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [460497114] [2023-12-25 13:20:36,190 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [460497114] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 13:20:36,190 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 13:20:36,190 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 13:20:36,190 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1445463145] [2023-12-25 13:20:36,191 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 13:20:36,191 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 13:20:36,191 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-25 13:20:36,191 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 13:20:36,192 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 13:20:36,192 INFO L87 Difference]: Start difference. First operand 919 states and 1502 transitions. Second operand has 4 states, 4 states have (on average 89.5) internal successors, (358), 4 states have internal predecessors, (358), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-12-25 13:20:36,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 13:20:36,280 INFO L93 Difference]: Finished difference Result 1656 states and 2704 transitions. [2023-12-25 13:20:36,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 13:20:36,280 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 89.5) internal successors, (358), 4 states have internal predecessors, (358), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 390 [2023-12-25 13:20:36,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 13:20:36,283 INFO L225 Difference]: With dead ends: 1656 [2023-12-25 13:20:36,283 INFO L226 Difference]: Without dead ends: 919 [2023-12-25 13:20:36,284 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-25 13:20:36,284 INFO L413 NwaCegarLoop]: 1388 mSDtfsCounter, 1149 mSDsluCounter, 1390 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1149 SdHoareTripleChecker+Valid, 2778 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 13:20:36,284 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1149 Valid, 2778 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 13:20:36,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 919 states. [2023-12-25 13:20:36,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 919 to 919. [2023-12-25 13:20:36,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 919 states, 908 states have (on average 1.6332599118942732) internal successors, (1483), 908 states have internal predecessors, (1483), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-12-25 13:20:36,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 919 states to 919 states and 1501 transitions. [2023-12-25 13:20:36,299 INFO L78 Accepts]: Start accepts. Automaton has 919 states and 1501 transitions. Word has length 390 [2023-12-25 13:20:36,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 13:20:36,299 INFO L495 AbstractCegarLoop]: Abstraction has 919 states and 1501 transitions. [2023-12-25 13:20:36,299 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 89.5) internal successors, (358), 4 states have internal predecessors, (358), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-12-25 13:20:36,299 INFO L276 IsEmpty]: Start isEmpty. Operand 919 states and 1501 transitions. [2023-12-25 13:20:36,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 391 [2023-12-25 13:20:36,301 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 13:20:36,301 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 13:20:36,301 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-12-25 13:20:36,301 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 13:20:36,302 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 13:20:36,302 INFO L85 PathProgramCache]: Analyzing trace with hash 135865379, now seen corresponding path program 1 times [2023-12-25 13:20:36,302 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-25 13:20:36,302 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [692063604] [2023-12-25 13:20:36,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 13:20:36,302 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-25 13:20:36,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:20:36,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2023-12-25 13:20:36,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:20:36,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-12-25 13:20:36,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:20:36,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2023-12-25 13:20:36,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:20:36,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2023-12-25 13:20:36,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:20:36,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2023-12-25 13:20:36,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:20:36,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2023-12-25 13:20:36,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:20:36,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2023-12-25 13:20:36,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:20:36,903 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2023-12-25 13:20:36,904 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-25 13:20:36,904 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [692063604] [2023-12-25 13:20:36,904 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [692063604] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 13:20:36,904 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 13:20:36,904 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 13:20:36,905 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1751049235] [2023-12-25 13:20:36,905 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 13:20:36,905 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 13:20:36,905 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-25 13:20:36,906 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 13:20:36,906 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 13:20:36,906 INFO L87 Difference]: Start difference. First operand 919 states and 1501 transitions. Second operand has 4 states, 4 states have (on average 89.5) internal successors, (358), 4 states have internal predecessors, (358), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-12-25 13:20:37,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 13:20:37,065 INFO L93 Difference]: Finished difference Result 1656 states and 2702 transitions. [2023-12-25 13:20:37,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 13:20:37,066 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 89.5) internal successors, (358), 4 states have internal predecessors, (358), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 390 [2023-12-25 13:20:37,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 13:20:37,068 INFO L225 Difference]: With dead ends: 1656 [2023-12-25 13:20:37,068 INFO L226 Difference]: Without dead ends: 919 [2023-12-25 13:20:37,069 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-25 13:20:37,069 INFO L413 NwaCegarLoop]: 1358 mSDtfsCounter, 1228 mSDsluCounter, 1360 mSDsCounter, 0 mSdLazyCounter, 141 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1228 SdHoareTripleChecker+Valid, 2718 SdHoareTripleChecker+Invalid, 141 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 141 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 13:20:37,070 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1228 Valid, 2718 Invalid, 141 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 141 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 13:20:37,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 919 states. [2023-12-25 13:20:37,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 919 to 919. [2023-12-25 13:20:37,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 919 states, 908 states have (on average 1.63215859030837) internal successors, (1482), 908 states have internal predecessors, (1482), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-12-25 13:20:37,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 919 states to 919 states and 1500 transitions. [2023-12-25 13:20:37,083 INFO L78 Accepts]: Start accepts. Automaton has 919 states and 1500 transitions. Word has length 390 [2023-12-25 13:20:37,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 13:20:37,084 INFO L495 AbstractCegarLoop]: Abstraction has 919 states and 1500 transitions. [2023-12-25 13:20:37,084 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 89.5) internal successors, (358), 4 states have internal predecessors, (358), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-12-25 13:20:37,084 INFO L276 IsEmpty]: Start isEmpty. Operand 919 states and 1500 transitions. [2023-12-25 13:20:37,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 391 [2023-12-25 13:20:37,086 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 13:20:37,086 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 13:20:37,086 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-12-25 13:20:37,086 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 13:20:37,087 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 13:20:37,087 INFO L85 PathProgramCache]: Analyzing trace with hash 784458149, now seen corresponding path program 1 times [2023-12-25 13:20:37,087 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-25 13:20:37,087 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2100963653] [2023-12-25 13:20:37,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 13:20:37,087 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-25 13:20:37,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:20:37,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2023-12-25 13:20:37,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:20:37,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-12-25 13:20:37,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:20:37,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2023-12-25 13:20:37,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:20:37,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2023-12-25 13:20:37,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:20:37,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2023-12-25 13:20:37,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:20:37,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2023-12-25 13:20:37,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:20:37,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2023-12-25 13:20:37,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:20:37,737 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2023-12-25 13:20:37,737 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-25 13:20:37,737 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2100963653] [2023-12-25 13:20:37,737 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2100963653] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 13:20:37,737 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 13:20:37,737 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 13:20:37,737 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1341085260] [2023-12-25 13:20:37,737 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 13:20:37,738 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 13:20:37,738 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-25 13:20:37,738 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 13:20:37,738 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-25 13:20:37,738 INFO L87 Difference]: Start difference. First operand 919 states and 1500 transitions. Second operand has 5 states, 5 states have (on average 71.6) internal successors, (358), 5 states have internal predecessors, (358), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-12-25 13:20:37,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 13:20:37,882 INFO L93 Difference]: Finished difference Result 1656 states and 2700 transitions. [2023-12-25 13:20:37,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 13:20:37,883 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 71.6) internal successors, (358), 5 states have internal predecessors, (358), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 390 [2023-12-25 13:20:37,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 13:20:37,885 INFO L225 Difference]: With dead ends: 1656 [2023-12-25 13:20:37,885 INFO L226 Difference]: Without dead ends: 919 [2023-12-25 13:20:37,887 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-12-25 13:20:37,887 INFO L413 NwaCegarLoop]: 1358 mSDtfsCounter, 2449 mSDsluCounter, 1360 mSDsCounter, 0 mSdLazyCounter, 139 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2449 SdHoareTripleChecker+Valid, 2718 SdHoareTripleChecker+Invalid, 139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 139 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 13:20:37,887 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2449 Valid, 2718 Invalid, 139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 139 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 13:20:37,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 919 states. [2023-12-25 13:20:37,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 919 to 919. [2023-12-25 13:20:37,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 919 states, 908 states have (on average 1.631057268722467) internal successors, (1481), 908 states have internal predecessors, (1481), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-12-25 13:20:37,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 919 states to 919 states and 1499 transitions. [2023-12-25 13:20:37,901 INFO L78 Accepts]: Start accepts. Automaton has 919 states and 1499 transitions. Word has length 390 [2023-12-25 13:20:37,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 13:20:37,901 INFO L495 AbstractCegarLoop]: Abstraction has 919 states and 1499 transitions. [2023-12-25 13:20:37,901 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 71.6) internal successors, (358), 5 states have internal predecessors, (358), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-12-25 13:20:37,901 INFO L276 IsEmpty]: Start isEmpty. Operand 919 states and 1499 transitions. [2023-12-25 13:20:37,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 391 [2023-12-25 13:20:37,903 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 13:20:37,903 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 13:20:37,903 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2023-12-25 13:20:37,904 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 13:20:37,904 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 13:20:37,904 INFO L85 PathProgramCache]: Analyzing trace with hash 94626659, now seen corresponding path program 1 times [2023-12-25 13:20:37,904 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-25 13:20:37,904 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [532406415] [2023-12-25 13:20:37,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 13:20:37,904 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-25 13:20:38,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:20:38,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2023-12-25 13:20:38,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:20:38,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-12-25 13:20:38,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:20:38,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2023-12-25 13:20:38,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:20:38,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2023-12-25 13:20:38,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:20:38,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2023-12-25 13:20:38,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:20:38,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2023-12-25 13:20:38,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:20:38,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2023-12-25 13:20:38,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:20:38,548 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2023-12-25 13:20:38,548 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-25 13:20:38,548 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [532406415] [2023-12-25 13:20:38,548 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [532406415] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 13:20:38,548 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 13:20:38,549 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 13:20:38,549 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1075889801] [2023-12-25 13:20:38,550 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 13:20:38,550 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 13:20:38,550 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-25 13:20:38,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 13:20:38,551 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-25 13:20:38,551 INFO L87 Difference]: Start difference. First operand 919 states and 1499 transitions. Second operand has 5 states, 5 states have (on average 71.6) internal successors, (358), 5 states have internal predecessors, (358), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-12-25 13:20:38,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 13:20:38,697 INFO L93 Difference]: Finished difference Result 1656 states and 2698 transitions. [2023-12-25 13:20:38,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 13:20:38,704 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 71.6) internal successors, (358), 5 states have internal predecessors, (358), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 390 [2023-12-25 13:20:38,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 13:20:38,708 INFO L225 Difference]: With dead ends: 1656 [2023-12-25 13:20:38,708 INFO L226 Difference]: Without dead ends: 919 [2023-12-25 13:20:38,709 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-12-25 13:20:38,709 INFO L413 NwaCegarLoop]: 1358 mSDtfsCounter, 1225 mSDsluCounter, 1370 mSDsCounter, 0 mSdLazyCounter, 137 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1225 SdHoareTripleChecker+Valid, 2728 SdHoareTripleChecker+Invalid, 137 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 137 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 13:20:38,709 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1225 Valid, 2728 Invalid, 137 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 137 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 13:20:38,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 919 states. [2023-12-25 13:20:38,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 919 to 919. [2023-12-25 13:20:38,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 919 states, 908 states have (on average 1.6299559471365639) internal successors, (1480), 908 states have internal predecessors, (1480), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-12-25 13:20:38,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 919 states to 919 states and 1498 transitions. [2023-12-25 13:20:38,724 INFO L78 Accepts]: Start accepts. Automaton has 919 states and 1498 transitions. Word has length 390 [2023-12-25 13:20:38,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 13:20:38,724 INFO L495 AbstractCegarLoop]: Abstraction has 919 states and 1498 transitions. [2023-12-25 13:20:38,725 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 71.6) internal successors, (358), 5 states have internal predecessors, (358), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-12-25 13:20:38,725 INFO L276 IsEmpty]: Start isEmpty. Operand 919 states and 1498 transitions. [2023-12-25 13:20:38,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 391 [2023-12-25 13:20:38,727 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 13:20:38,727 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 13:20:38,727 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2023-12-25 13:20:38,727 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 13:20:38,727 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 13:20:38,727 INFO L85 PathProgramCache]: Analyzing trace with hash -1828623771, now seen corresponding path program 1 times [2023-12-25 13:20:38,727 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-25 13:20:38,727 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1912773458] [2023-12-25 13:20:38,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 13:20:38,728 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-25 13:20:39,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:20:39,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2023-12-25 13:20:39,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:20:39,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-12-25 13:20:39,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:20:39,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2023-12-25 13:20:39,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:20:39,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2023-12-25 13:20:39,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:20:39,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2023-12-25 13:20:39,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:20:39,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2023-12-25 13:20:39,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:20:39,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2023-12-25 13:20:39,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:20:39,394 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2023-12-25 13:20:39,394 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-25 13:20:39,394 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1912773458] [2023-12-25 13:20:39,394 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1912773458] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 13:20:39,394 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 13:20:39,394 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 13:20:39,394 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [714673955] [2023-12-25 13:20:39,394 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 13:20:39,395 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 13:20:39,395 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-25 13:20:39,395 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 13:20:39,395 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-25 13:20:39,396 INFO L87 Difference]: Start difference. First operand 919 states and 1498 transitions. Second operand has 5 states, 5 states have (on average 71.6) internal successors, (358), 5 states have internal predecessors, (358), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-12-25 13:20:39,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 13:20:39,540 INFO L93 Difference]: Finished difference Result 1656 states and 2696 transitions. [2023-12-25 13:20:39,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 13:20:39,541 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 71.6) internal successors, (358), 5 states have internal predecessors, (358), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 390 [2023-12-25 13:20:39,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 13:20:39,543 INFO L225 Difference]: With dead ends: 1656 [2023-12-25 13:20:39,543 INFO L226 Difference]: Without dead ends: 919 [2023-12-25 13:20:39,544 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-12-25 13:20:39,545 INFO L413 NwaCegarLoop]: 1358 mSDtfsCounter, 2362 mSDsluCounter, 1360 mSDsCounter, 0 mSdLazyCounter, 135 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2362 SdHoareTripleChecker+Valid, 2718 SdHoareTripleChecker+Invalid, 135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 135 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 13:20:39,545 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2362 Valid, 2718 Invalid, 135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 135 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 13:20:39,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 919 states. [2023-12-25 13:20:39,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 919 to 919. [2023-12-25 13:20:39,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 919 states, 908 states have (on average 1.6288546255506609) internal successors, (1479), 908 states have internal predecessors, (1479), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-12-25 13:20:39,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 919 states to 919 states and 1497 transitions. [2023-12-25 13:20:39,558 INFO L78 Accepts]: Start accepts. Automaton has 919 states and 1497 transitions. Word has length 390 [2023-12-25 13:20:39,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 13:20:39,559 INFO L495 AbstractCegarLoop]: Abstraction has 919 states and 1497 transitions. [2023-12-25 13:20:39,559 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 71.6) internal successors, (358), 5 states have internal predecessors, (358), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-12-25 13:20:39,559 INFO L276 IsEmpty]: Start isEmpty. Operand 919 states and 1497 transitions. [2023-12-25 13:20:39,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 391 [2023-12-25 13:20:39,561 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 13:20:39,561 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 13:20:39,561 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2023-12-25 13:20:39,561 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 13:20:39,562 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 13:20:39,562 INFO L85 PathProgramCache]: Analyzing trace with hash 47859047, now seen corresponding path program 1 times [2023-12-25 13:20:39,562 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-25 13:20:39,563 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [107641104] [2023-12-25 13:20:39,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 13:20:39,563 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-25 13:20:39,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:20:40,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2023-12-25 13:20:40,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:20:40,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-12-25 13:20:40,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:20:40,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2023-12-25 13:20:40,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:20:40,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2023-12-25 13:20:40,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:20:40,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2023-12-25 13:20:40,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:20:40,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2023-12-25 13:20:40,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:20:40,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2023-12-25 13:20:40,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:20:40,199 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2023-12-25 13:20:40,199 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-25 13:20:40,199 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [107641104] [2023-12-25 13:20:40,199 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [107641104] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 13:20:40,199 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 13:20:40,199 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 13:20:40,199 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [410757620] [2023-12-25 13:20:40,199 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 13:20:40,200 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 13:20:40,200 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-25 13:20:40,200 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 13:20:40,200 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-25 13:20:40,201 INFO L87 Difference]: Start difference. First operand 919 states and 1497 transitions. Second operand has 5 states, 5 states have (on average 71.6) internal successors, (358), 5 states have internal predecessors, (358), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-12-25 13:20:40,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 13:20:40,339 INFO L93 Difference]: Finished difference Result 1656 states and 2694 transitions. [2023-12-25 13:20:40,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 13:20:40,340 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 71.6) internal successors, (358), 5 states have internal predecessors, (358), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 390 [2023-12-25 13:20:40,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 13:20:40,345 INFO L225 Difference]: With dead ends: 1656 [2023-12-25 13:20:40,345 INFO L226 Difference]: Without dead ends: 919 [2023-12-25 13:20:40,346 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-12-25 13:20:40,346 INFO L413 NwaCegarLoop]: 1358 mSDtfsCounter, 1223 mSDsluCounter, 1370 mSDsCounter, 0 mSdLazyCounter, 133 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1223 SdHoareTripleChecker+Valid, 2728 SdHoareTripleChecker+Invalid, 133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 133 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 13:20:40,347 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1223 Valid, 2728 Invalid, 133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 133 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 13:20:40,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 919 states. [2023-12-25 13:20:40,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 919 to 919. [2023-12-25 13:20:40,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 919 states, 908 states have (on average 1.6277533039647578) internal successors, (1478), 908 states have internal predecessors, (1478), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-12-25 13:20:40,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 919 states to 919 states and 1496 transitions. [2023-12-25 13:20:40,363 INFO L78 Accepts]: Start accepts. Automaton has 919 states and 1496 transitions. Word has length 390 [2023-12-25 13:20:40,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 13:20:40,363 INFO L495 AbstractCegarLoop]: Abstraction has 919 states and 1496 transitions. [2023-12-25 13:20:40,363 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 71.6) internal successors, (358), 5 states have internal predecessors, (358), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-12-25 13:20:40,364 INFO L276 IsEmpty]: Start isEmpty. Operand 919 states and 1496 transitions. [2023-12-25 13:20:40,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 391 [2023-12-25 13:20:40,365 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 13:20:40,365 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 13:20:40,366 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2023-12-25 13:20:40,366 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 13:20:40,366 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 13:20:40,366 INFO L85 PathProgramCache]: Analyzing trace with hash 1614616997, now seen corresponding path program 1 times [2023-12-25 13:20:40,366 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-25 13:20:40,366 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [543620502] [2023-12-25 13:20:40,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 13:20:40,366 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-25 13:20:40,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:20:40,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2023-12-25 13:20:40,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:20:40,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-12-25 13:20:40,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:20:40,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2023-12-25 13:20:40,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:20:40,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2023-12-25 13:20:40,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:20:40,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2023-12-25 13:20:40,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:20:40,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2023-12-25 13:20:40,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:20:40,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2023-12-25 13:20:40,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:20:41,011 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2023-12-25 13:20:41,011 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-25 13:20:41,011 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [543620502] [2023-12-25 13:20:41,011 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [543620502] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 13:20:41,011 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 13:20:41,011 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 13:20:41,012 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1305843382] [2023-12-25 13:20:41,012 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 13:20:41,012 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 13:20:41,012 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-25 13:20:41,020 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 13:20:41,021 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-25 13:20:41,021 INFO L87 Difference]: Start difference. First operand 919 states and 1496 transitions. Second operand has 5 states, 5 states have (on average 71.6) internal successors, (358), 5 states have internal predecessors, (358), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-12-25 13:20:41,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 13:20:41,182 INFO L93 Difference]: Finished difference Result 1656 states and 2692 transitions. [2023-12-25 13:20:41,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 13:20:41,183 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 71.6) internal successors, (358), 5 states have internal predecessors, (358), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 390 [2023-12-25 13:20:41,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 13:20:41,192 INFO L225 Difference]: With dead ends: 1656 [2023-12-25 13:20:41,192 INFO L226 Difference]: Without dead ends: 919 [2023-12-25 13:20:41,192 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-12-25 13:20:41,193 INFO L413 NwaCegarLoop]: 1358 mSDtfsCounter, 2352 mSDsluCounter, 1360 mSDsCounter, 0 mSdLazyCounter, 131 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2352 SdHoareTripleChecker+Valid, 2718 SdHoareTripleChecker+Invalid, 131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 131 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 13:20:41,194 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2352 Valid, 2718 Invalid, 131 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 131 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 13:20:41,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 919 states. [2023-12-25 13:20:41,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 919 to 919. [2023-12-25 13:20:41,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 919 states, 908 states have (on average 1.6266519823788546) internal successors, (1477), 908 states have internal predecessors, (1477), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-12-25 13:20:41,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 919 states to 919 states and 1495 transitions. [2023-12-25 13:20:41,210 INFO L78 Accepts]: Start accepts. Automaton has 919 states and 1495 transitions. Word has length 390 [2023-12-25 13:20:41,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 13:20:41,210 INFO L495 AbstractCegarLoop]: Abstraction has 919 states and 1495 transitions. [2023-12-25 13:20:41,210 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 71.6) internal successors, (358), 5 states have internal predecessors, (358), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-12-25 13:20:41,211 INFO L276 IsEmpty]: Start isEmpty. Operand 919 states and 1495 transitions. [2023-12-25 13:20:41,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 391 [2023-12-25 13:20:41,212 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 13:20:41,212 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 13:20:41,213 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2023-12-25 13:20:41,213 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 13:20:41,213 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 13:20:41,213 INFO L85 PathProgramCache]: Analyzing trace with hash 1854856743, now seen corresponding path program 1 times [2023-12-25 13:20:41,213 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-25 13:20:41,213 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2006124367] [2023-12-25 13:20:41,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 13:20:41,213 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-25 13:20:41,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:20:42,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2023-12-25 13:20:42,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:20:42,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-12-25 13:20:42,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:20:42,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2023-12-25 13:20:42,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:20:42,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2023-12-25 13:20:42,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:20:42,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2023-12-25 13:20:42,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:20:42,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2023-12-25 13:20:42,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:20:42,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2023-12-25 13:20:42,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:20:42,528 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2023-12-25 13:20:42,528 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-25 13:20:42,528 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2006124367] [2023-12-25 13:20:42,528 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2006124367] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 13:20:42,528 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 13:20:42,528 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-25 13:20:42,528 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1668395225] [2023-12-25 13:20:42,528 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 13:20:42,529 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-25 13:20:42,530 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-25 13:20:42,530 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-25 13:20:42,530 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-12-25 13:20:42,530 INFO L87 Difference]: Start difference. First operand 919 states and 1495 transitions. Second operand has 7 states, 7 states have (on average 51.142857142857146) internal successors, (358), 7 states have internal predecessors, (358), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-25 13:20:42,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 13:20:42,840 INFO L93 Difference]: Finished difference Result 3130 states and 5084 transitions. [2023-12-25 13:20:42,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-25 13:20:42,840 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 51.142857142857146) internal successors, (358), 7 states have internal predecessors, (358), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 390 [2023-12-25 13:20:42,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 13:20:42,844 INFO L225 Difference]: With dead ends: 3130 [2023-12-25 13:20:42,844 INFO L226 Difference]: Without dead ends: 2393 [2023-12-25 13:20:42,845 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=52, Invalid=104, Unknown=0, NotChecked=0, Total=156 [2023-12-25 13:20:42,845 INFO L413 NwaCegarLoop]: 3651 mSDtfsCounter, 3745 mSDsluCounter, 11189 mSDsCounter, 0 mSdLazyCounter, 251 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3757 SdHoareTripleChecker+Valid, 14840 SdHoareTripleChecker+Invalid, 264 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 251 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-25 13:20:42,845 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3757 Valid, 14840 Invalid, 264 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 251 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-25 13:20:42,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2393 states. [2023-12-25 13:20:42,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2393 to 924. [2023-12-25 13:20:42,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 924 states, 913 states have (on average 1.624315443592552) internal successors, (1483), 913 states have internal predecessors, (1483), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-12-25 13:20:42,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 924 states to 924 states and 1501 transitions. [2023-12-25 13:20:42,865 INFO L78 Accepts]: Start accepts. Automaton has 924 states and 1501 transitions. Word has length 390 [2023-12-25 13:20:42,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 13:20:42,866 INFO L495 AbstractCegarLoop]: Abstraction has 924 states and 1501 transitions. [2023-12-25 13:20:42,866 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 51.142857142857146) internal successors, (358), 7 states have internal predecessors, (358), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-25 13:20:42,866 INFO L276 IsEmpty]: Start isEmpty. Operand 924 states and 1501 transitions. [2023-12-25 13:20:42,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 392 [2023-12-25 13:20:42,868 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 13:20:42,868 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 13:20:42,868 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2023-12-25 13:20:42,868 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 13:20:42,868 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 13:20:42,868 INFO L85 PathProgramCache]: Analyzing trace with hash 1968503653, now seen corresponding path program 1 times [2023-12-25 13:20:42,868 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-25 13:20:42,868 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1690905686] [2023-12-25 13:20:42,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 13:20:42,869 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-25 13:20:43,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:20:44,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2023-12-25 13:20:44,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:20:44,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-12-25 13:20:44,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:20:44,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2023-12-25 13:20:44,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:20:44,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2023-12-25 13:20:44,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:20:44,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2023-12-25 13:20:44,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:20:44,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2023-12-25 13:20:44,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:20:44,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2023-12-25 13:20:44,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:20:44,102 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2023-12-25 13:20:44,103 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-25 13:20:44,103 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1690905686] [2023-12-25 13:20:44,103 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1690905686] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 13:20:44,103 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 13:20:44,103 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 13:20:44,103 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1407459791] [2023-12-25 13:20:44,103 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 13:20:44,103 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 13:20:44,103 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-25 13:20:44,104 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 13:20:44,104 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-25 13:20:44,104 INFO L87 Difference]: Start difference. First operand 924 states and 1501 transitions. Second operand has 5 states, 5 states have (on average 71.8) internal successors, (359), 5 states have internal predecessors, (359), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-12-25 13:20:44,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 13:20:44,614 INFO L93 Difference]: Finished difference Result 1670 states and 2707 transitions. [2023-12-25 13:20:44,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-25 13:20:44,614 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 71.8) internal successors, (359), 5 states have internal predecessors, (359), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 391 [2023-12-25 13:20:44,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 13:20:44,617 INFO L225 Difference]: With dead ends: 1670 [2023-12-25 13:20:44,617 INFO L226 Difference]: Without dead ends: 928 [2023-12-25 13:20:44,618 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-25 13:20:44,618 INFO L413 NwaCegarLoop]: 1119 mSDtfsCounter, 1150 mSDsluCounter, 2209 mSDsCounter, 0 mSdLazyCounter, 924 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1150 SdHoareTripleChecker+Valid, 3328 SdHoareTripleChecker+Invalid, 924 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 924 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-25 13:20:44,618 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1150 Valid, 3328 Invalid, 924 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 924 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-25 13:20:44,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 928 states. [2023-12-25 13:20:44,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 928 to 927. [2023-12-25 13:20:44,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 927 states, 916 states have (on average 1.6222707423580787) internal successors, (1486), 916 states have internal predecessors, (1486), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-12-25 13:20:44,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 927 states to 927 states and 1504 transitions. [2023-12-25 13:20:44,633 INFO L78 Accepts]: Start accepts. Automaton has 927 states and 1504 transitions. Word has length 391 [2023-12-25 13:20:44,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 13:20:44,634 INFO L495 AbstractCegarLoop]: Abstraction has 927 states and 1504 transitions. [2023-12-25 13:20:44,634 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 71.8) internal successors, (359), 5 states have internal predecessors, (359), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-12-25 13:20:44,634 INFO L276 IsEmpty]: Start isEmpty. Operand 927 states and 1504 transitions. [2023-12-25 13:20:44,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 392 [2023-12-25 13:20:44,636 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 13:20:44,636 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 13:20:44,636 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2023-12-25 13:20:44,636 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 13:20:44,636 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 13:20:44,636 INFO L85 PathProgramCache]: Analyzing trace with hash -725392537, now seen corresponding path program 1 times [2023-12-25 13:20:44,636 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-25 13:20:44,636 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [188433547] [2023-12-25 13:20:44,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 13:20:44,637 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-25 13:20:45,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:20:45,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2023-12-25 13:20:45,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:20:45,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-12-25 13:20:45,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:20:45,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2023-12-25 13:20:45,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:20:45,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2023-12-25 13:20:45,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:20:45,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2023-12-25 13:20:45,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:20:45,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2023-12-25 13:20:45,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:20:45,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2023-12-25 13:20:45,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:20:45,583 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2023-12-25 13:20:45,583 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-25 13:20:45,583 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [188433547] [2023-12-25 13:20:45,583 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [188433547] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 13:20:45,583 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 13:20:45,583 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-25 13:20:45,583 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [506701674] [2023-12-25 13:20:45,583 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 13:20:45,584 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-25 13:20:45,584 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-25 13:20:45,584 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-25 13:20:45,584 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-25 13:20:45,585 INFO L87 Difference]: Start difference. First operand 927 states and 1504 transitions. Second operand has 7 states, 7 states have (on average 51.285714285714285) internal successors, (359), 7 states have internal predecessors, (359), 3 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2023-12-25 13:20:46,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 13:20:46,105 INFO L93 Difference]: Finished difference Result 1804 states and 2913 transitions. [2023-12-25 13:20:46,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-25 13:20:46,105 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 51.285714285714285) internal successors, (359), 7 states have internal predecessors, (359), 3 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 391 [2023-12-25 13:20:46,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 13:20:46,107 INFO L225 Difference]: With dead ends: 1804 [2023-12-25 13:20:46,107 INFO L226 Difference]: Without dead ends: 959 [2023-12-25 13:20:46,108 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2023-12-25 13:20:46,109 INFO L413 NwaCegarLoop]: 1537 mSDtfsCounter, 2602 mSDsluCounter, 4493 mSDsCounter, 0 mSdLazyCounter, 469 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2602 SdHoareTripleChecker+Valid, 6030 SdHoareTripleChecker+Invalid, 501 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 469 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-25 13:20:46,109 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2602 Valid, 6030 Invalid, 501 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 469 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-25 13:20:46,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 959 states. [2023-12-25 13:20:46,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 959 to 931. [2023-12-25 13:20:46,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 931 states, 920 states have (on average 1.617391304347826) internal successors, (1488), 920 states have internal predecessors, (1488), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-12-25 13:20:46,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 931 states to 931 states and 1506 transitions. [2023-12-25 13:20:46,128 INFO L78 Accepts]: Start accepts. Automaton has 931 states and 1506 transitions. Word has length 391 [2023-12-25 13:20:46,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 13:20:46,128 INFO L495 AbstractCegarLoop]: Abstraction has 931 states and 1506 transitions. [2023-12-25 13:20:46,128 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 51.285714285714285) internal successors, (359), 7 states have internal predecessors, (359), 3 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2023-12-25 13:20:46,128 INFO L276 IsEmpty]: Start isEmpty. Operand 931 states and 1506 transitions. [2023-12-25 13:20:46,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 393 [2023-12-25 13:20:46,130 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 13:20:46,130 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 13:20:46,130 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2023-12-25 13:20:46,131 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 13:20:46,131 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 13:20:46,131 INFO L85 PathProgramCache]: Analyzing trace with hash 694414351, now seen corresponding path program 1 times [2023-12-25 13:20:46,131 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-25 13:20:46,131 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [363480952] [2023-12-25 13:20:46,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 13:20:46,131 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-25 13:20:46,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:20:46,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2023-12-25 13:20:46,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:20:46,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2023-12-25 13:20:46,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:20:46,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2023-12-25 13:20:46,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:20:46,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2023-12-25 13:20:46,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:20:46,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2023-12-25 13:20:46,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:20:46,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2023-12-25 13:20:46,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:20:46,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2023-12-25 13:20:46,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:20:46,854 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2023-12-25 13:20:46,854 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-25 13:20:46,854 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [363480952] [2023-12-25 13:20:46,854 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [363480952] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 13:20:46,854 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 13:20:46,854 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 13:20:46,854 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [209616377] [2023-12-25 13:20:46,855 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 13:20:46,855 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 13:20:46,855 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-25 13:20:46,856 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 13:20:46,856 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-25 13:20:46,856 INFO L87 Difference]: Start difference. First operand 931 states and 1506 transitions. Second operand has 4 states, 4 states have (on average 90.0) internal successors, (360), 4 states have internal predecessors, (360), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-25 13:20:47,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 13:20:47,327 INFO L93 Difference]: Finished difference Result 1678 states and 2711 transitions. [2023-12-25 13:20:47,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 13:20:47,327 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 90.0) internal successors, (360), 4 states have internal predecessors, (360), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 392 [2023-12-25 13:20:47,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 13:20:47,328 INFO L225 Difference]: With dead ends: 1678 [2023-12-25 13:20:47,329 INFO L226 Difference]: Without dead ends: 931 [2023-12-25 13:20:47,329 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-25 13:20:47,329 INFO L413 NwaCegarLoop]: 1119 mSDtfsCounter, 1340 mSDsluCounter, 1119 mSDsCounter, 0 mSdLazyCounter, 606 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1342 SdHoareTripleChecker+Valid, 2238 SdHoareTripleChecker+Invalid, 607 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 606 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-25 13:20:47,330 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1342 Valid, 2238 Invalid, 607 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 606 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-25 13:20:47,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 931 states. [2023-12-25 13:20:47,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 931 to 931. [2023-12-25 13:20:47,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 931 states, 920 states have (on average 1.616304347826087) internal successors, (1487), 920 states have internal predecessors, (1487), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-12-25 13:20:47,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 931 states to 931 states and 1505 transitions. [2023-12-25 13:20:47,349 INFO L78 Accepts]: Start accepts. Automaton has 931 states and 1505 transitions. Word has length 392 [2023-12-25 13:20:47,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 13:20:47,349 INFO L495 AbstractCegarLoop]: Abstraction has 931 states and 1505 transitions. [2023-12-25 13:20:47,349 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 90.0) internal successors, (360), 4 states have internal predecessors, (360), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-25 13:20:47,349 INFO L276 IsEmpty]: Start isEmpty. Operand 931 states and 1505 transitions. [2023-12-25 13:20:47,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 394 [2023-12-25 13:20:47,351 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 13:20:47,351 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 13:20:47,351 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2023-12-25 13:20:47,351 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 13:20:47,352 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 13:20:47,352 INFO L85 PathProgramCache]: Analyzing trace with hash 504646339, now seen corresponding path program 1 times [2023-12-25 13:20:47,352 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-25 13:20:47,352 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1577095892] [2023-12-25 13:20:47,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 13:20:47,352 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-25 13:20:47,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:20:48,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2023-12-25 13:20:48,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:20:48,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2023-12-25 13:20:48,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:20:48,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2023-12-25 13:20:48,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:20:48,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2023-12-25 13:20:48,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:20:48,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2023-12-25 13:20:48,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:20:48,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2023-12-25 13:20:48,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:20:48,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2023-12-25 13:20:48,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:20:48,310 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2023-12-25 13:20:48,310 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-25 13:20:48,310 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1577095892] [2023-12-25 13:20:48,310 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1577095892] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 13:20:48,310 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 13:20:48,310 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-25 13:20:48,310 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [369101546] [2023-12-25 13:20:48,310 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 13:20:48,310 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-25 13:20:48,311 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-25 13:20:48,311 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-25 13:20:48,311 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-25 13:20:48,311 INFO L87 Difference]: Start difference. First operand 931 states and 1505 transitions. Second operand has 7 states, 7 states have (on average 51.57142857142857) internal successors, (361), 7 states have internal predecessors, (361), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-25 13:20:48,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 13:20:48,799 INFO L93 Difference]: Finished difference Result 1838 states and 2952 transitions. [2023-12-25 13:20:48,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-25 13:20:48,800 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 51.57142857142857) internal successors, (361), 7 states have internal predecessors, (361), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 393 [2023-12-25 13:20:48,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 13:20:48,802 INFO L225 Difference]: With dead ends: 1838 [2023-12-25 13:20:48,802 INFO L226 Difference]: Without dead ends: 949 [2023-12-25 13:20:48,803 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2023-12-25 13:20:48,803 INFO L413 NwaCegarLoop]: 1439 mSDtfsCounter, 2777 mSDsluCounter, 4249 mSDsCounter, 0 mSdLazyCounter, 443 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2777 SdHoareTripleChecker+Valid, 5688 SdHoareTripleChecker+Invalid, 487 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 443 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-25 13:20:48,803 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2777 Valid, 5688 Invalid, 487 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 443 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-25 13:20:48,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 949 states. [2023-12-25 13:20:48,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 949 to 935. [2023-12-25 13:20:48,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 935 states, 924 states have (on average 1.6114718614718615) internal successors, (1489), 924 states have internal predecessors, (1489), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-12-25 13:20:48,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 935 states to 935 states and 1507 transitions. [2023-12-25 13:20:48,822 INFO L78 Accepts]: Start accepts. Automaton has 935 states and 1507 transitions. Word has length 393 [2023-12-25 13:20:48,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 13:20:48,822 INFO L495 AbstractCegarLoop]: Abstraction has 935 states and 1507 transitions. [2023-12-25 13:20:48,822 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 51.57142857142857) internal successors, (361), 7 states have internal predecessors, (361), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-25 13:20:48,822 INFO L276 IsEmpty]: Start isEmpty. Operand 935 states and 1507 transitions. [2023-12-25 13:20:48,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 395 [2023-12-25 13:20:48,824 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 13:20:48,824 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 13:20:48,824 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2023-12-25 13:20:48,824 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 13:20:48,824 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 13:20:48,825 INFO L85 PathProgramCache]: Analyzing trace with hash 1485690287, now seen corresponding path program 1 times [2023-12-25 13:20:48,825 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-25 13:20:48,825 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1427919513] [2023-12-25 13:20:48,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 13:20:48,825 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-25 13:20:49,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:20:49,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2023-12-25 13:20:49,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:20:49,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2023-12-25 13:20:49,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:20:49,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2023-12-25 13:20:49,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:20:49,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2023-12-25 13:20:49,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:20:49,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2023-12-25 13:20:49,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:20:49,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2023-12-25 13:20:49,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:20:49,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2023-12-25 13:20:49,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:20:49,740 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2023-12-25 13:20:49,740 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-25 13:20:49,740 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1427919513] [2023-12-25 13:20:49,740 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1427919513] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 13:20:49,740 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 13:20:49,740 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-25 13:20:49,740 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [980964422] [2023-12-25 13:20:49,740 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 13:20:49,741 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-25 13:20:49,741 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-25 13:20:49,741 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-25 13:20:49,741 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-25 13:20:49,742 INFO L87 Difference]: Start difference. First operand 935 states and 1507 transitions. Second operand has 7 states, 7 states have (on average 51.714285714285715) internal successors, (362), 7 states have internal predecessors, (362), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-25 13:20:50,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 13:20:50,466 INFO L93 Difference]: Finished difference Result 1758 states and 2826 transitions. [2023-12-25 13:20:50,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-25 13:20:50,466 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 51.714285714285715) internal successors, (362), 7 states have internal predecessors, (362), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 394 [2023-12-25 13:20:50,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 13:20:50,468 INFO L225 Difference]: With dead ends: 1758 [2023-12-25 13:20:50,468 INFO L226 Difference]: Without dead ends: 1009 [2023-12-25 13:20:50,469 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2023-12-25 13:20:50,469 INFO L413 NwaCegarLoop]: 1157 mSDtfsCounter, 3822 mSDsluCounter, 2583 mSDsCounter, 0 mSdLazyCounter, 1150 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3822 SdHoareTripleChecker+Valid, 3740 SdHoareTripleChecker+Invalid, 1167 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 1150 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-25 13:20:50,469 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3822 Valid, 3740 Invalid, 1167 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 1150 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-25 13:20:50,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1009 states. [2023-12-25 13:20:50,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1009 to 937. [2023-12-25 13:20:50,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 937 states, 926 states have (on average 1.6090712742980562) internal successors, (1490), 926 states have internal predecessors, (1490), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-12-25 13:20:50,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 937 states to 937 states and 1508 transitions. [2023-12-25 13:20:50,485 INFO L78 Accepts]: Start accepts. Automaton has 937 states and 1508 transitions. Word has length 394 [2023-12-25 13:20:50,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 13:20:50,485 INFO L495 AbstractCegarLoop]: Abstraction has 937 states and 1508 transitions. [2023-12-25 13:20:50,485 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 51.714285714285715) internal successors, (362), 7 states have internal predecessors, (362), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-25 13:20:50,485 INFO L276 IsEmpty]: Start isEmpty. Operand 937 states and 1508 transitions. [2023-12-25 13:20:50,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 396 [2023-12-25 13:20:50,487 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 13:20:50,487 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 13:20:50,487 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2023-12-25 13:20:50,487 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 13:20:50,488 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 13:20:50,488 INFO L85 PathProgramCache]: Analyzing trace with hash -202352879, now seen corresponding path program 1 times [2023-12-25 13:20:50,488 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-25 13:20:50,488 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [598635012] [2023-12-25 13:20:50,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 13:20:50,488 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-25 13:20:50,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:20:51,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2023-12-25 13:20:51,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:20:51,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2023-12-25 13:20:51,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:20:51,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2023-12-25 13:20:51,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:20:51,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2023-12-25 13:20:51,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:20:51,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2023-12-25 13:20:51,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:20:51,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2023-12-25 13:20:51,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:20:51,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2023-12-25 13:20:51,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:20:51,527 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2023-12-25 13:20:51,527 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-25 13:20:51,527 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [598635012] [2023-12-25 13:20:51,527 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [598635012] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 13:20:51,527 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 13:20:51,527 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-25 13:20:51,527 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [800896961] [2023-12-25 13:20:51,527 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 13:20:51,528 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-25 13:20:51,528 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-25 13:20:51,528 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-25 13:20:51,528 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-12-25 13:20:51,528 INFO L87 Difference]: Start difference. First operand 937 states and 1508 transitions. Second operand has 8 states, 8 states have (on average 45.375) internal successors, (363), 8 states have internal predecessors, (363), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-25 13:20:52,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 13:20:52,664 INFO L93 Difference]: Finished difference Result 2509 states and 4031 transitions. [2023-12-25 13:20:52,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-25 13:20:52,664 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 45.375) internal successors, (363), 8 states have internal predecessors, (363), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 395 [2023-12-25 13:20:52,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 13:20:52,667 INFO L225 Difference]: With dead ends: 2509 [2023-12-25 13:20:52,667 INFO L226 Difference]: Without dead ends: 1758 [2023-12-25 13:20:52,668 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=55, Invalid=127, Unknown=0, NotChecked=0, Total=182 [2023-12-25 13:20:52,671 INFO L413 NwaCegarLoop]: 1273 mSDtfsCounter, 4685 mSDsluCounter, 5173 mSDsCounter, 0 mSdLazyCounter, 1761 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4692 SdHoareTripleChecker+Valid, 6446 SdHoareTripleChecker+Invalid, 1772 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 1761 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-12-25 13:20:52,671 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4692 Valid, 6446 Invalid, 1772 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 1761 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-12-25 13:20:52,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1758 states. [2023-12-25 13:20:52,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1758 to 1683. [2023-12-25 13:20:52,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1683 states, 1665 states have (on average 1.609009009009009) internal successors, (2679), 1665 states have internal predecessors, (2679), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2023-12-25 13:20:52,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1683 states to 1683 states and 2711 transitions. [2023-12-25 13:20:52,708 INFO L78 Accepts]: Start accepts. Automaton has 1683 states and 2711 transitions. Word has length 395 [2023-12-25 13:20:52,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 13:20:52,708 INFO L495 AbstractCegarLoop]: Abstraction has 1683 states and 2711 transitions. [2023-12-25 13:20:52,708 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 45.375) internal successors, (363), 8 states have internal predecessors, (363), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-25 13:20:52,708 INFO L276 IsEmpty]: Start isEmpty. Operand 1683 states and 2711 transitions. [2023-12-25 13:20:52,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 396 [2023-12-25 13:20:52,710 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 13:20:52,711 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 13:20:52,711 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2023-12-25 13:20:52,711 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 13:20:52,711 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 13:20:52,711 INFO L85 PathProgramCache]: Analyzing trace with hash 269986767, now seen corresponding path program 1 times [2023-12-25 13:20:52,711 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-25 13:20:52,712 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1343919630] [2023-12-25 13:20:52,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 13:20:52,712 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-25 13:20:53,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:20:53,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2023-12-25 13:20:53,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:20:53,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2023-12-25 13:20:53,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:20:53,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2023-12-25 13:20:53,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:20:53,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2023-12-25 13:20:53,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:20:53,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2023-12-25 13:20:53,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:20:53,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2023-12-25 13:20:53,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:20:53,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2023-12-25 13:20:53,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:20:53,803 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2023-12-25 13:20:53,803 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-25 13:20:53,803 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1343919630] [2023-12-25 13:20:53,803 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1343919630] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 13:20:53,803 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 13:20:53,803 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-25 13:20:53,803 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1356648672] [2023-12-25 13:20:53,803 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 13:20:53,803 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-25 13:20:53,804 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-25 13:20:53,804 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-25 13:20:53,804 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-12-25 13:20:53,804 INFO L87 Difference]: Start difference. First operand 1683 states and 2711 transitions. Second operand has 8 states, 8 states have (on average 45.375) internal successors, (363), 8 states have internal predecessors, (363), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-25 13:20:54,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 13:20:54,506 INFO L93 Difference]: Finished difference Result 1942 states and 3108 transitions. [2023-12-25 13:20:54,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-25 13:20:54,507 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 45.375) internal successors, (363), 8 states have internal predecessors, (363), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 395 [2023-12-25 13:20:54,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 13:20:54,509 INFO L225 Difference]: With dead ends: 1942 [2023-12-25 13:20:54,509 INFO L226 Difference]: Without dead ends: 1009 [2023-12-25 13:20:54,510 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=109, Unknown=0, NotChecked=0, Total=156 [2023-12-25 13:20:54,510 INFO L413 NwaCegarLoop]: 1715 mSDtfsCounter, 1527 mSDsluCounter, 6230 mSDsCounter, 0 mSdLazyCounter, 974 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1534 SdHoareTripleChecker+Valid, 7945 SdHoareTripleChecker+Invalid, 975 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 974 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-25 13:20:54,510 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1534 Valid, 7945 Invalid, 975 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 974 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-25 13:20:54,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1009 states. [2023-12-25 13:20:54,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1009 to 938. [2023-12-25 13:20:54,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 938 states, 927 states have (on average 1.6084142394822007) internal successors, (1491), 927 states have internal predecessors, (1491), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-12-25 13:20:54,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 938 states to 938 states and 1509 transitions. [2023-12-25 13:20:54,525 INFO L78 Accepts]: Start accepts. Automaton has 938 states and 1509 transitions. Word has length 395 [2023-12-25 13:20:54,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 13:20:54,526 INFO L495 AbstractCegarLoop]: Abstraction has 938 states and 1509 transitions. [2023-12-25 13:20:54,526 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 45.375) internal successors, (363), 8 states have internal predecessors, (363), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-25 13:20:54,526 INFO L276 IsEmpty]: Start isEmpty. Operand 938 states and 1509 transitions. [2023-12-25 13:20:54,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 396 [2023-12-25 13:20:54,528 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 13:20:54,528 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 13:20:54,528 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2023-12-25 13:20:54,528 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 13:20:54,528 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 13:20:54,528 INFO L85 PathProgramCache]: Analyzing trace with hash 297849679, now seen corresponding path program 1 times [2023-12-25 13:20:54,528 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-25 13:20:54,528 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [93645252] [2023-12-25 13:20:54,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 13:20:54,529 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-25 13:20:55,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:20:55,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2023-12-25 13:20:55,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:20:55,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2023-12-25 13:20:55,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:20:55,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2023-12-25 13:20:55,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:20:55,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2023-12-25 13:20:55,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:20:55,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2023-12-25 13:20:55,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:20:55,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2023-12-25 13:20:55,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:20:55,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2023-12-25 13:20:55,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:20:55,438 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2023-12-25 13:20:55,438 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-25 13:20:55,439 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [93645252] [2023-12-25 13:20:55,439 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [93645252] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 13:20:55,439 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 13:20:55,439 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-25 13:20:55,439 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [10281347] [2023-12-25 13:20:55,439 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 13:20:55,439 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-25 13:20:55,439 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-25 13:20:55,440 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-25 13:20:55,440 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-25 13:20:55,440 INFO L87 Difference]: Start difference. First operand 938 states and 1509 transitions. Second operand has 7 states, 7 states have (on average 51.857142857142854) internal successors, (363), 7 states have internal predecessors, (363), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-25 13:20:56,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 13:20:56,190 INFO L93 Difference]: Finished difference Result 1775 states and 2845 transitions. [2023-12-25 13:20:56,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-25 13:20:56,190 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 51.857142857142854) internal successors, (363), 7 states have internal predecessors, (363), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 395 [2023-12-25 13:20:56,190 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 13:20:56,192 INFO L225 Difference]: With dead ends: 1775 [2023-12-25 13:20:56,192 INFO L226 Difference]: Without dead ends: 1023 [2023-12-25 13:20:56,193 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2023-12-25 13:20:56,193 INFO L413 NwaCegarLoop]: 1163 mSDtfsCounter, 3807 mSDsluCounter, 2600 mSDsCounter, 0 mSdLazyCounter, 1173 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3807 SdHoareTripleChecker+Valid, 3763 SdHoareTripleChecker+Invalid, 1188 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 1173 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-25 13:20:56,193 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3807 Valid, 3763 Invalid, 1188 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 1173 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-25 13:20:56,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1023 states. [2023-12-25 13:20:56,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1023 to 940. [2023-12-25 13:20:56,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 940 states, 929 states have (on average 1.6060279870828849) internal successors, (1492), 929 states have internal predecessors, (1492), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-12-25 13:20:56,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 940 states to 940 states and 1510 transitions. [2023-12-25 13:20:56,209 INFO L78 Accepts]: Start accepts. Automaton has 940 states and 1510 transitions. Word has length 395 [2023-12-25 13:20:56,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 13:20:56,209 INFO L495 AbstractCegarLoop]: Abstraction has 940 states and 1510 transitions. [2023-12-25 13:20:56,209 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 51.857142857142854) internal successors, (363), 7 states have internal predecessors, (363), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-25 13:20:56,209 INFO L276 IsEmpty]: Start isEmpty. Operand 940 states and 1510 transitions. [2023-12-25 13:20:56,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 397 [2023-12-25 13:20:56,211 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 13:20:56,211 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 13:20:56,211 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2023-12-25 13:20:56,211 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 13:20:56,211 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 13:20:56,212 INFO L85 PathProgramCache]: Analyzing trace with hash 2147225407, now seen corresponding path program 1 times [2023-12-25 13:20:56,212 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-25 13:20:56,212 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1738154947] [2023-12-25 13:20:56,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 13:20:56,212 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-25 13:20:56,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:20:57,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2023-12-25 13:20:57,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:20:57,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2023-12-25 13:20:57,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:20:57,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2023-12-25 13:20:57,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:20:57,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2023-12-25 13:20:57,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:20:57,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2023-12-25 13:20:57,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:20:57,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2023-12-25 13:20:57,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:20:57,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2023-12-25 13:20:57,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:20:57,254 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2023-12-25 13:20:57,254 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-25 13:20:57,255 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1738154947] [2023-12-25 13:20:57,255 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1738154947] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 13:20:57,255 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 13:20:57,255 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-25 13:20:57,255 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1238031893] [2023-12-25 13:20:57,257 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 13:20:57,257 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-25 13:20:57,257 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-25 13:20:57,258 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-25 13:20:57,258 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-12-25 13:20:57,258 INFO L87 Difference]: Start difference. First operand 940 states and 1510 transitions. Second operand has 8 states, 8 states have (on average 45.5) internal successors, (364), 8 states have internal predecessors, (364), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-25 13:20:58,407 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 13:20:58,407 INFO L93 Difference]: Finished difference Result 2529 states and 4052 transitions. [2023-12-25 13:20:58,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-25 13:20:58,408 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 45.5) internal successors, (364), 8 states have internal predecessors, (364), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 396 [2023-12-25 13:20:58,408 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 13:20:58,410 INFO L225 Difference]: With dead ends: 2529 [2023-12-25 13:20:58,410 INFO L226 Difference]: Without dead ends: 1775 [2023-12-25 13:20:58,411 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=55, Invalid=127, Unknown=0, NotChecked=0, Total=182 [2023-12-25 13:20:58,411 INFO L413 NwaCegarLoop]: 1267 mSDtfsCounter, 4696 mSDsluCounter, 5168 mSDsCounter, 0 mSdLazyCounter, 1769 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4703 SdHoareTripleChecker+Valid, 6435 SdHoareTripleChecker+Invalid, 1781 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 1769 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-12-25 13:20:58,411 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4703 Valid, 6435 Invalid, 1781 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 1769 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-12-25 13:20:58,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1775 states. [2023-12-25 13:20:58,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1775 to 1689. [2023-12-25 13:20:58,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1689 states, 1671 states have (on average 1.6056253740275284) internal successors, (2683), 1671 states have internal predecessors, (2683), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2023-12-25 13:20:58,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1689 states to 1689 states and 2715 transitions. [2023-12-25 13:20:58,441 INFO L78 Accepts]: Start accepts. Automaton has 1689 states and 2715 transitions. Word has length 396 [2023-12-25 13:20:58,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 13:20:58,443 INFO L495 AbstractCegarLoop]: Abstraction has 1689 states and 2715 transitions. [2023-12-25 13:20:58,443 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 45.5) internal successors, (364), 8 states have internal predecessors, (364), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-25 13:20:58,443 INFO L276 IsEmpty]: Start isEmpty. Operand 1689 states and 2715 transitions. [2023-12-25 13:20:58,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 397 [2023-12-25 13:20:58,446 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 13:20:58,446 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 13:20:58,446 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2023-12-25 13:20:58,446 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 13:20:58,446 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 13:20:58,447 INFO L85 PathProgramCache]: Analyzing trace with hash -1675402243, now seen corresponding path program 1 times [2023-12-25 13:20:58,447 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-25 13:20:58,447 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [241112225] [2023-12-25 13:20:58,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 13:20:58,447 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-25 13:20:58,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:20:59,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2023-12-25 13:20:59,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:20:59,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2023-12-25 13:20:59,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:20:59,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2023-12-25 13:20:59,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:20:59,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2023-12-25 13:20:59,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:20:59,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2023-12-25 13:20:59,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:20:59,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2023-12-25 13:20:59,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:20:59,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2023-12-25 13:20:59,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:20:59,492 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2023-12-25 13:20:59,492 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-25 13:20:59,492 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [241112225] [2023-12-25 13:20:59,492 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [241112225] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 13:20:59,492 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 13:20:59,492 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-25 13:20:59,492 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1070942116] [2023-12-25 13:20:59,492 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 13:20:59,493 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-25 13:20:59,493 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-25 13:20:59,493 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-25 13:20:59,493 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-12-25 13:20:59,494 INFO L87 Difference]: Start difference. First operand 1689 states and 2715 transitions. Second operand has 8 states, 8 states have (on average 45.5) internal successors, (364), 8 states have internal predecessors, (364), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-25 13:21:00,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 13:21:00,188 INFO L93 Difference]: Finished difference Result 1951 states and 3114 transitions. [2023-12-25 13:21:00,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-25 13:21:00,189 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 45.5) internal successors, (364), 8 states have internal predecessors, (364), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 396 [2023-12-25 13:21:00,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 13:21:00,191 INFO L225 Difference]: With dead ends: 1951 [2023-12-25 13:21:00,191 INFO L226 Difference]: Without dead ends: 1023 [2023-12-25 13:21:00,192 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=109, Unknown=0, NotChecked=0, Total=156 [2023-12-25 13:21:00,192 INFO L413 NwaCegarLoop]: 1717 mSDtfsCounter, 1524 mSDsluCounter, 6276 mSDsCounter, 0 mSdLazyCounter, 969 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1531 SdHoareTripleChecker+Valid, 7993 SdHoareTripleChecker+Invalid, 970 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 969 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-25 13:21:00,192 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1531 Valid, 7993 Invalid, 970 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 969 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-25 13:21:00,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1023 states. [2023-12-25 13:21:00,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1023 to 941. [2023-12-25 13:21:00,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 941 states, 930 states have (on average 1.6053763440860216) internal successors, (1493), 930 states have internal predecessors, (1493), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-12-25 13:21:00,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 941 states to 941 states and 1511 transitions. [2023-12-25 13:21:00,207 INFO L78 Accepts]: Start accepts. Automaton has 941 states and 1511 transitions. Word has length 396 [2023-12-25 13:21:00,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 13:21:00,208 INFO L495 AbstractCegarLoop]: Abstraction has 941 states and 1511 transitions. [2023-12-25 13:21:00,208 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 45.5) internal successors, (364), 8 states have internal predecessors, (364), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-25 13:21:00,208 INFO L276 IsEmpty]: Start isEmpty. Operand 941 states and 1511 transitions. [2023-12-25 13:21:00,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 397 [2023-12-25 13:21:00,210 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 13:21:00,210 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 13:21:00,210 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2023-12-25 13:21:00,210 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 13:21:00,210 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 13:21:00,210 INFO L85 PathProgramCache]: Analyzing trace with hash -1166991107, now seen corresponding path program 1 times [2023-12-25 13:21:00,210 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-25 13:21:00,210 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1696848945] [2023-12-25 13:21:00,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 13:21:00,211 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-25 13:21:00,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:01,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2023-12-25 13:21:01,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:01,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2023-12-25 13:21:01,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:01,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2023-12-25 13:21:01,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:01,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2023-12-25 13:21:01,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:01,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2023-12-25 13:21:01,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:01,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2023-12-25 13:21:01,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:01,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2023-12-25 13:21:01,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:01,045 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2023-12-25 13:21:01,045 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-25 13:21:01,045 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1696848945] [2023-12-25 13:21:01,045 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1696848945] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 13:21:01,046 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 13:21:01,046 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-25 13:21:01,046 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [872058526] [2023-12-25 13:21:01,046 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 13:21:01,046 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-25 13:21:01,046 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-25 13:21:01,047 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-25 13:21:01,047 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-25 13:21:01,047 INFO L87 Difference]: Start difference. First operand 941 states and 1511 transitions. Second operand has 7 states, 7 states have (on average 52.0) internal successors, (364), 7 states have internal predecessors, (364), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-25 13:21:01,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 13:21:01,808 INFO L93 Difference]: Finished difference Result 1806 states and 2887 transitions. [2023-12-25 13:21:01,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-25 13:21:01,809 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 52.0) internal successors, (364), 7 states have internal predecessors, (364), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 396 [2023-12-25 13:21:01,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 13:21:01,811 INFO L225 Difference]: With dead ends: 1806 [2023-12-25 13:21:01,811 INFO L226 Difference]: Without dead ends: 1051 [2023-12-25 13:21:01,812 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2023-12-25 13:21:01,812 INFO L413 NwaCegarLoop]: 1187 mSDtfsCounter, 2526 mSDsluCounter, 2685 mSDsCounter, 0 mSdLazyCounter, 1219 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2526 SdHoareTripleChecker+Valid, 3872 SdHoareTripleChecker+Invalid, 1229 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 1219 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-25 13:21:01,812 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2526 Valid, 3872 Invalid, 1229 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 1219 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-25 13:21:01,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1051 states. [2023-12-25 13:21:01,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1051 to 943. [2023-12-25 13:21:01,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 943 states, 932 states have (on average 1.6030042918454936) internal successors, (1494), 932 states have internal predecessors, (1494), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-12-25 13:21:01,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 943 states to 943 states and 1512 transitions. [2023-12-25 13:21:01,827 INFO L78 Accepts]: Start accepts. Automaton has 943 states and 1512 transitions. Word has length 396 [2023-12-25 13:21:01,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 13:21:01,827 INFO L495 AbstractCegarLoop]: Abstraction has 943 states and 1512 transitions. [2023-12-25 13:21:01,827 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 52.0) internal successors, (364), 7 states have internal predecessors, (364), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-25 13:21:01,827 INFO L276 IsEmpty]: Start isEmpty. Operand 943 states and 1512 transitions. [2023-12-25 13:21:01,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 398 [2023-12-25 13:21:01,829 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 13:21:01,829 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 13:21:01,829 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2023-12-25 13:21:01,830 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 13:21:01,830 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 13:21:01,830 INFO L85 PathProgramCache]: Analyzing trace with hash 1929006083, now seen corresponding path program 1 times [2023-12-25 13:21:01,830 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-25 13:21:01,830 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [883816438] [2023-12-25 13:21:01,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 13:21:01,830 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-25 13:21:02,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:03,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2023-12-25 13:21:03,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:03,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2023-12-25 13:21:03,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:03,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2023-12-25 13:21:03,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:03,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2023-12-25 13:21:03,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:03,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2023-12-25 13:21:03,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:03,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2023-12-25 13:21:03,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:03,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2023-12-25 13:21:03,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:03,238 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2023-12-25 13:21:03,238 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-25 13:21:03,238 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [883816438] [2023-12-25 13:21:03,238 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [883816438] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 13:21:03,238 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 13:21:03,238 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-25 13:21:03,238 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1588681417] [2023-12-25 13:21:03,238 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 13:21:03,239 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-25 13:21:03,239 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-25 13:21:03,239 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-25 13:21:03,239 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2023-12-25 13:21:03,239 INFO L87 Difference]: Start difference. First operand 943 states and 1512 transitions. Second operand has 8 states, 8 states have (on average 45.625) internal successors, (365), 8 states have internal predecessors, (365), 3 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2023-12-25 13:21:03,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 13:21:03,479 INFO L93 Difference]: Finished difference Result 3315 states and 5302 transitions. [2023-12-25 13:21:03,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-25 13:21:03,479 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 45.625) internal successors, (365), 8 states have internal predecessors, (365), 3 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 397 [2023-12-25 13:21:03,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 13:21:03,483 INFO L225 Difference]: With dead ends: 3315 [2023-12-25 13:21:03,483 INFO L226 Difference]: Without dead ends: 2558 [2023-12-25 13:21:03,484 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2023-12-25 13:21:03,485 INFO L413 NwaCegarLoop]: 2590 mSDtfsCounter, 4734 mSDsluCounter, 9590 mSDsCounter, 0 mSdLazyCounter, 235 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4746 SdHoareTripleChecker+Valid, 12180 SdHoareTripleChecker+Invalid, 244 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 235 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 13:21:03,485 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4746 Valid, 12180 Invalid, 244 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 235 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 13:21:03,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2558 states. [2023-12-25 13:21:03,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2558 to 1101. [2023-12-25 13:21:03,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1101 states, 1083 states have (on average 1.5872576177285318) internal successors, (1719), 1083 states have internal predecessors, (1719), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2023-12-25 13:21:03,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1101 states to 1101 states and 1751 transitions. [2023-12-25 13:21:03,511 INFO L78 Accepts]: Start accepts. Automaton has 1101 states and 1751 transitions. Word has length 397 [2023-12-25 13:21:03,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 13:21:03,511 INFO L495 AbstractCegarLoop]: Abstraction has 1101 states and 1751 transitions. [2023-12-25 13:21:03,511 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 45.625) internal successors, (365), 8 states have internal predecessors, (365), 3 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2023-12-25 13:21:03,511 INFO L276 IsEmpty]: Start isEmpty. Operand 1101 states and 1751 transitions. [2023-12-25 13:21:03,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 398 [2023-12-25 13:21:03,513 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 13:21:03,513 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 13:21:03,513 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2023-12-25 13:21:03,514 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 13:21:03,514 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 13:21:03,514 INFO L85 PathProgramCache]: Analyzing trace with hash 631951925, now seen corresponding path program 1 times [2023-12-25 13:21:03,514 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-25 13:21:03,514 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2029786376] [2023-12-25 13:21:03,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 13:21:03,514 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-25 13:21:03,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:03,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2023-12-25 13:21:03,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:03,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2023-12-25 13:21:03,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:03,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2023-12-25 13:21:03,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:03,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2023-12-25 13:21:03,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:03,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2023-12-25 13:21:03,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:03,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2023-12-25 13:21:03,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:03,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2023-12-25 13:21:03,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:03,926 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2023-12-25 13:21:03,926 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-25 13:21:03,927 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2029786376] [2023-12-25 13:21:03,927 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2029786376] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 13:21:03,927 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 13:21:03,927 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 13:21:03,927 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [687571618] [2023-12-25 13:21:03,927 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 13:21:03,927 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 13:21:03,927 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-25 13:21:03,928 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 13:21:03,929 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 13:21:03,929 INFO L87 Difference]: Start difference. First operand 1101 states and 1751 transitions. Second operand has 4 states, 4 states have (on average 91.25) internal successors, (365), 4 states have internal predecessors, (365), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-25 13:21:03,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 13:21:03,983 INFO L93 Difference]: Finished difference Result 1864 states and 2969 transitions. [2023-12-25 13:21:03,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 13:21:03,983 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 91.25) internal successors, (365), 4 states have internal predecessors, (365), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 397 [2023-12-25 13:21:03,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 13:21:03,985 INFO L225 Difference]: With dead ends: 1864 [2023-12-25 13:21:03,985 INFO L226 Difference]: Without dead ends: 1107 [2023-12-25 13:21:03,986 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 13:21:03,986 INFO L413 NwaCegarLoop]: 1412 mSDtfsCounter, 1 mSDsluCounter, 2795 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 4207 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 13:21:03,986 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 4207 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 13:21:03,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1107 states. [2023-12-25 13:21:04,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1107 to 1105. [2023-12-25 13:21:04,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1105 states, 1087 states have (on average 1.5850965961361545) internal successors, (1723), 1087 states have internal predecessors, (1723), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2023-12-25 13:21:04,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1105 states to 1105 states and 1755 transitions. [2023-12-25 13:21:04,008 INFO L78 Accepts]: Start accepts. Automaton has 1105 states and 1755 transitions. Word has length 397 [2023-12-25 13:21:04,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 13:21:04,008 INFO L495 AbstractCegarLoop]: Abstraction has 1105 states and 1755 transitions. [2023-12-25 13:21:04,008 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 91.25) internal successors, (365), 4 states have internal predecessors, (365), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-25 13:21:04,008 INFO L276 IsEmpty]: Start isEmpty. Operand 1105 states and 1755 transitions. [2023-12-25 13:21:04,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 399 [2023-12-25 13:21:04,011 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 13:21:04,011 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 13:21:04,011 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2023-12-25 13:21:04,011 INFO L420 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 13:21:04,011 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 13:21:04,012 INFO L85 PathProgramCache]: Analyzing trace with hash -1035360857, now seen corresponding path program 1 times [2023-12-25 13:21:04,012 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-25 13:21:04,012 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1538645625] [2023-12-25 13:21:04,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 13:21:04,012 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-25 13:21:04,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:04,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2023-12-25 13:21:04,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:04,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2023-12-25 13:21:04,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:04,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2023-12-25 13:21:04,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:04,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2023-12-25 13:21:04,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:04,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2023-12-25 13:21:04,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:04,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2023-12-25 13:21:04,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:04,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2023-12-25 13:21:04,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:04,663 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2023-12-25 13:21:04,664 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-25 13:21:04,664 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1538645625] [2023-12-25 13:21:04,664 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1538645625] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 13:21:04,664 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 13:21:04,664 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 13:21:04,664 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [573052589] [2023-12-25 13:21:04,664 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 13:21:04,664 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 13:21:04,664 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-25 13:21:04,665 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 13:21:04,665 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-25 13:21:04,665 INFO L87 Difference]: Start difference. First operand 1105 states and 1755 transitions. Second operand has 5 states, 5 states have (on average 73.2) internal successors, (366), 5 states have internal predecessors, (366), 3 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2023-12-25 13:21:04,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 13:21:04,786 INFO L93 Difference]: Finished difference Result 2699 states and 4294 transitions. [2023-12-25 13:21:04,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-25 13:21:04,786 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 73.2) internal successors, (366), 5 states have internal predecessors, (366), 3 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 398 [2023-12-25 13:21:04,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 13:21:04,789 INFO L225 Difference]: With dead ends: 2699 [2023-12-25 13:21:04,789 INFO L226 Difference]: Without dead ends: 1940 [2023-12-25 13:21:04,790 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 17 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-12-25 13:21:04,790 INFO L413 NwaCegarLoop]: 2626 mSDtfsCounter, 2348 mSDsluCounter, 5525 mSDsCounter, 0 mSdLazyCounter, 106 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2351 SdHoareTripleChecker+Valid, 8151 SdHoareTripleChecker+Invalid, 115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 106 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 13:21:04,790 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2351 Valid, 8151 Invalid, 115 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 106 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 13:21:04,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1940 states. [2023-12-25 13:21:04,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1940 to 1147. [2023-12-25 13:21:04,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1147 states, 1126 states have (on average 1.5799289520426287) internal successors, (1779), 1126 states have internal predecessors, (1779), 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) [2023-12-25 13:21:04,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1147 states to 1147 states and 1817 transitions. [2023-12-25 13:21:04,848 INFO L78 Accepts]: Start accepts. Automaton has 1147 states and 1817 transitions. Word has length 398 [2023-12-25 13:21:04,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 13:21:04,848 INFO L495 AbstractCegarLoop]: Abstraction has 1147 states and 1817 transitions. [2023-12-25 13:21:04,848 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 73.2) internal successors, (366), 5 states have internal predecessors, (366), 3 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2023-12-25 13:21:04,848 INFO L276 IsEmpty]: Start isEmpty. Operand 1147 states and 1817 transitions. [2023-12-25 13:21:04,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 399 [2023-12-25 13:21:04,850 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 13:21:04,851 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 13:21:04,851 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2023-12-25 13:21:04,851 INFO L420 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 13:21:04,851 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 13:21:04,851 INFO L85 PathProgramCache]: Analyzing trace with hash -1699353175, now seen corresponding path program 1 times [2023-12-25 13:21:04,851 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-25 13:21:04,851 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [530202972] [2023-12-25 13:21:04,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 13:21:04,851 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-25 13:21:05,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:06,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2023-12-25 13:21:06,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:06,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2023-12-25 13:21:06,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:06,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2023-12-25 13:21:06,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:06,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2023-12-25 13:21:06,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:06,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2023-12-25 13:21:06,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:06,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2023-12-25 13:21:06,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:06,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2023-12-25 13:21:06,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:06,185 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2023-12-25 13:21:06,185 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-25 13:21:06,185 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [530202972] [2023-12-25 13:21:06,185 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [530202972] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 13:21:06,185 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 13:21:06,185 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-25 13:21:06,185 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1012048490] [2023-12-25 13:21:06,185 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 13:21:06,186 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-25 13:21:06,186 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-25 13:21:06,186 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-25 13:21:06,186 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2023-12-25 13:21:06,186 INFO L87 Difference]: Start difference. First operand 1147 states and 1817 transitions. Second operand has 8 states, 8 states have (on average 45.75) internal successors, (366), 8 states have internal predecessors, (366), 3 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2023-12-25 13:21:06,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 13:21:06,448 INFO L93 Difference]: Finished difference Result 3857 states and 6101 transitions. [2023-12-25 13:21:06,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-25 13:21:06,448 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 45.75) internal successors, (366), 8 states have internal predecessors, (366), 3 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 398 [2023-12-25 13:21:06,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 13:21:06,452 INFO L225 Difference]: With dead ends: 3857 [2023-12-25 13:21:06,452 INFO L226 Difference]: Without dead ends: 3056 [2023-12-25 13:21:06,454 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2023-12-25 13:21:06,454 INFO L413 NwaCegarLoop]: 2584 mSDtfsCounter, 4707 mSDsluCounter, 8932 mSDsCounter, 0 mSdLazyCounter, 197 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4718 SdHoareTripleChecker+Valid, 11516 SdHoareTripleChecker+Invalid, 205 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 197 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 13:21:06,454 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4718 Valid, 11516 Invalid, 205 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 197 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 13:21:06,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3056 states. [2023-12-25 13:21:06,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3056 to 1515. [2023-12-25 13:21:06,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1515 states, 1476 states have (on average 1.5555555555555556) internal successors, (2296), 1476 states have internal predecessors, (2296), 37 states have call successors, (37), 1 states have call predecessors, (37), 1 states have return successors, (37), 37 states have call predecessors, (37), 37 states have call successors, (37) [2023-12-25 13:21:06,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1515 states to 1515 states and 2370 transitions. [2023-12-25 13:21:06,532 INFO L78 Accepts]: Start accepts. Automaton has 1515 states and 2370 transitions. Word has length 398 [2023-12-25 13:21:06,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 13:21:06,532 INFO L495 AbstractCegarLoop]: Abstraction has 1515 states and 2370 transitions. [2023-12-25 13:21:06,533 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 45.75) internal successors, (366), 8 states have internal predecessors, (366), 3 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2023-12-25 13:21:06,533 INFO L276 IsEmpty]: Start isEmpty. Operand 1515 states and 2370 transitions. [2023-12-25 13:21:06,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 400 [2023-12-25 13:21:06,536 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 13:21:06,536 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 13:21:06,536 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2023-12-25 13:21:06,536 INFO L420 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 13:21:06,536 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 13:21:06,536 INFO L85 PathProgramCache]: Analyzing trace with hash 25424637, now seen corresponding path program 1 times [2023-12-25 13:21:06,537 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-25 13:21:06,537 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [432051237] [2023-12-25 13:21:06,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 13:21:06,537 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-25 13:21:06,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:06,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2023-12-25 13:21:06,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:06,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2023-12-25 13:21:06,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:06,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2023-12-25 13:21:06,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:06,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2023-12-25 13:21:06,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:06,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2023-12-25 13:21:06,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:06,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2023-12-25 13:21:06,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:06,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2023-12-25 13:21:06,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:06,909 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2023-12-25 13:21:06,909 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-25 13:21:06,909 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [432051237] [2023-12-25 13:21:06,909 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [432051237] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 13:21:06,909 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 13:21:06,910 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 13:21:06,910 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [566057577] [2023-12-25 13:21:06,910 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 13:21:06,910 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 13:21:06,910 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-25 13:21:06,911 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 13:21:06,911 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 13:21:06,911 INFO L87 Difference]: Start difference. First operand 1515 states and 2370 transitions. Second operand has 4 states, 4 states have (on average 91.75) internal successors, (367), 4 states have internal predecessors, (367), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-25 13:21:06,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 13:21:06,992 INFO L93 Difference]: Finished difference Result 2362 states and 3707 transitions. [2023-12-25 13:21:06,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 13:21:06,992 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 91.75) internal successors, (367), 4 states have internal predecessors, (367), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 399 [2023-12-25 13:21:06,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 13:21:06,994 INFO L225 Difference]: With dead ends: 2362 [2023-12-25 13:21:06,994 INFO L226 Difference]: Without dead ends: 1533 [2023-12-25 13:21:06,995 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 13:21:06,995 INFO L413 NwaCegarLoop]: 1412 mSDtfsCounter, 1 mSDsluCounter, 2797 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 4209 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 13:21:06,995 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 4209 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 13:21:06,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1533 states. [2023-12-25 13:21:07,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1533 to 1527. [2023-12-25 13:21:07,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1527 states, 1488 states have (on average 1.5510752688172043) internal successors, (2308), 1488 states have internal predecessors, (2308), 37 states have call successors, (37), 1 states have call predecessors, (37), 1 states have return successors, (37), 37 states have call predecessors, (37), 37 states have call successors, (37) [2023-12-25 13:21:07,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1527 states to 1527 states and 2382 transitions. [2023-12-25 13:21:07,041 INFO L78 Accepts]: Start accepts. Automaton has 1527 states and 2382 transitions. Word has length 399 [2023-12-25 13:21:07,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 13:21:07,042 INFO L495 AbstractCegarLoop]: Abstraction has 1527 states and 2382 transitions. [2023-12-25 13:21:07,042 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 91.75) internal successors, (367), 4 states have internal predecessors, (367), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-25 13:21:07,042 INFO L276 IsEmpty]: Start isEmpty. Operand 1527 states and 2382 transitions. [2023-12-25 13:21:07,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 400 [2023-12-25 13:21:07,044 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 13:21:07,044 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 13:21:07,045 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2023-12-25 13:21:07,045 INFO L420 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 13:21:07,045 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 13:21:07,045 INFO L85 PathProgramCache]: Analyzing trace with hash -2137942903, now seen corresponding path program 1 times [2023-12-25 13:21:07,045 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-25 13:21:07,045 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1230188181] [2023-12-25 13:21:07,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 13:21:07,045 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-25 13:21:07,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:07,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2023-12-25 13:21:07,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:07,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2023-12-25 13:21:07,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:07,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2023-12-25 13:21:07,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:07,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2023-12-25 13:21:07,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:07,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2023-12-25 13:21:07,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:07,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2023-12-25 13:21:07,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:07,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2023-12-25 13:21:07,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:07,692 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2023-12-25 13:21:07,693 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-25 13:21:07,693 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1230188181] [2023-12-25 13:21:07,693 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1230188181] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 13:21:07,693 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 13:21:07,693 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 13:21:07,693 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [207077354] [2023-12-25 13:21:07,693 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 13:21:07,693 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 13:21:07,693 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-25 13:21:07,694 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 13:21:07,694 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-25 13:21:07,694 INFO L87 Difference]: Start difference. First operand 1527 states and 2382 transitions. Second operand has 5 states, 5 states have (on average 73.4) internal successors, (367), 5 states have internal predecessors, (367), 3 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2023-12-25 13:21:07,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 13:21:07,860 INFO L93 Difference]: Finished difference Result 3290 states and 5158 transitions. [2023-12-25 13:21:07,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-25 13:21:07,860 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 73.4) internal successors, (367), 5 states have internal predecessors, (367), 3 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 399 [2023-12-25 13:21:07,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 13:21:07,863 INFO L225 Difference]: With dead ends: 3290 [2023-12-25 13:21:07,863 INFO L226 Difference]: Without dead ends: 2485 [2023-12-25 13:21:07,864 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 17 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-12-25 13:21:07,865 INFO L413 NwaCegarLoop]: 1576 mSDtfsCounter, 2328 mSDsluCounter, 4428 mSDsCounter, 0 mSdLazyCounter, 100 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2331 SdHoareTripleChecker+Valid, 6004 SdHoareTripleChecker+Invalid, 108 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 13:21:07,865 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2331 Valid, 6004 Invalid, 108 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 100 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 13:21:07,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2485 states. [2023-12-25 13:21:07,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2485 to 1621. [2023-12-25 13:21:07,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1621 states, 1575 states have (on average 1.5409523809523809) internal successors, (2427), 1575 states have internal predecessors, (2427), 44 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 44 states have call predecessors, (44), 44 states have call successors, (44) [2023-12-25 13:21:07,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1621 states to 1621 states and 2515 transitions. [2023-12-25 13:21:07,923 INFO L78 Accepts]: Start accepts. Automaton has 1621 states and 2515 transitions. Word has length 399 [2023-12-25 13:21:07,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 13:21:07,923 INFO L495 AbstractCegarLoop]: Abstraction has 1621 states and 2515 transitions. [2023-12-25 13:21:07,923 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 73.4) internal successors, (367), 5 states have internal predecessors, (367), 3 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2023-12-25 13:21:07,923 INFO L276 IsEmpty]: Start isEmpty. Operand 1621 states and 2515 transitions. [2023-12-25 13:21:07,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 400 [2023-12-25 13:21:07,926 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 13:21:07,926 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 13:21:07,926 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2023-12-25 13:21:07,927 INFO L420 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 13:21:07,927 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 13:21:07,928 INFO L85 PathProgramCache]: Analyzing trace with hash -1892135029, now seen corresponding path program 1 times [2023-12-25 13:21:07,928 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-25 13:21:07,928 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [277962569] [2023-12-25 13:21:07,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 13:21:07,928 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-25 13:21:08,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:09,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2023-12-25 13:21:09,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:09,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2023-12-25 13:21:09,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:09,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2023-12-25 13:21:09,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:09,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2023-12-25 13:21:09,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:09,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2023-12-25 13:21:09,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:09,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2023-12-25 13:21:09,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:09,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2023-12-25 13:21:09,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:09,239 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2023-12-25 13:21:09,239 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-25 13:21:09,239 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [277962569] [2023-12-25 13:21:09,240 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [277962569] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 13:21:09,240 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 13:21:09,240 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-25 13:21:09,240 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1236620244] [2023-12-25 13:21:09,240 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 13:21:09,240 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-25 13:21:09,240 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-25 13:21:09,241 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-25 13:21:09,241 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-12-25 13:21:09,241 INFO L87 Difference]: Start difference. First operand 1621 states and 2515 transitions. Second operand has 7 states, 7 states have (on average 52.42857142857143) internal successors, (367), 7 states have internal predecessors, (367), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-25 13:21:09,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 13:21:09,526 INFO L93 Difference]: Finished difference Result 4242 states and 6639 transitions. [2023-12-25 13:21:09,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-25 13:21:09,526 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 52.42857142857143) internal successors, (367), 7 states have internal predecessors, (367), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 399 [2023-12-25 13:21:09,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 13:21:09,529 INFO L225 Difference]: With dead ends: 4242 [2023-12-25 13:21:09,529 INFO L226 Difference]: Without dead ends: 3262 [2023-12-25 13:21:09,531 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=52, Invalid=104, Unknown=0, NotChecked=0, Total=156 [2023-12-25 13:21:09,531 INFO L413 NwaCegarLoop]: 2629 mSDtfsCounter, 4696 mSDsluCounter, 9159 mSDsCounter, 0 mSdLazyCounter, 238 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4707 SdHoareTripleChecker+Valid, 11788 SdHoareTripleChecker+Invalid, 249 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 238 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 13:21:09,531 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4707 Valid, 11788 Invalid, 249 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 238 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 13:21:09,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3262 states. [2023-12-25 13:21:09,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3262 to 1633. [2023-12-25 13:21:09,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1633 states, 1587 states have (on average 1.5330812854442344) internal successors, (2433), 1587 states have internal predecessors, (2433), 44 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 44 states have call predecessors, (44), 44 states have call successors, (44) [2023-12-25 13:21:09,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1633 states to 1633 states and 2521 transitions. [2023-12-25 13:21:09,629 INFO L78 Accepts]: Start accepts. Automaton has 1633 states and 2521 transitions. Word has length 399 [2023-12-25 13:21:09,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 13:21:09,629 INFO L495 AbstractCegarLoop]: Abstraction has 1633 states and 2521 transitions. [2023-12-25 13:21:09,629 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 52.42857142857143) internal successors, (367), 7 states have internal predecessors, (367), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-25 13:21:09,629 INFO L276 IsEmpty]: Start isEmpty. Operand 1633 states and 2521 transitions. [2023-12-25 13:21:09,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 400 [2023-12-25 13:21:09,632 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 13:21:09,632 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 13:21:09,632 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2023-12-25 13:21:09,632 INFO L420 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 13:21:09,632 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 13:21:09,632 INFO L85 PathProgramCache]: Analyzing trace with hash 771558193, now seen corresponding path program 1 times [2023-12-25 13:21:09,632 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-25 13:21:09,633 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1464792452] [2023-12-25 13:21:09,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 13:21:09,633 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-25 13:21:10,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:10,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2023-12-25 13:21:10,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:10,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2023-12-25 13:21:10,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:11,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2023-12-25 13:21:11,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:11,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2023-12-25 13:21:11,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:11,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2023-12-25 13:21:11,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:11,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2023-12-25 13:21:11,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:11,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2023-12-25 13:21:11,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:11,004 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2023-12-25 13:21:11,005 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-25 13:21:11,005 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1464792452] [2023-12-25 13:21:11,005 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1464792452] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 13:21:11,005 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 13:21:11,005 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 13:21:11,005 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1343846275] [2023-12-25 13:21:11,005 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 13:21:11,005 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 13:21:11,005 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-25 13:21:11,006 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 13:21:11,006 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-25 13:21:11,006 INFO L87 Difference]: Start difference. First operand 1633 states and 2521 transitions. Second operand has 5 states, 5 states have (on average 73.4) internal successors, (367), 5 states have internal predecessors, (367), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-12-25 13:21:11,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 13:21:11,211 INFO L93 Difference]: Finished difference Result 3875 states and 6038 transitions. [2023-12-25 13:21:11,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-25 13:21:11,212 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 73.4) internal successors, (367), 5 states have internal predecessors, (367), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 399 [2023-12-25 13:21:11,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 13:21:11,215 INFO L225 Difference]: With dead ends: 3875 [2023-12-25 13:21:11,215 INFO L226 Difference]: Without dead ends: 2999 [2023-12-25 13:21:11,216 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-12-25 13:21:11,216 INFO L413 NwaCegarLoop]: 2589 mSDtfsCounter, 2543 mSDsluCounter, 5796 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2543 SdHoareTripleChecker+Valid, 8385 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 13:21:11,217 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2543 Valid, 8385 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 13:21:11,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2999 states. [2023-12-25 13:21:11,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2999 to 1881. [2023-12-25 13:21:11,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1881 states, 1835 states have (on average 1.5356948228882834) internal successors, (2818), 1835 states have internal predecessors, (2818), 44 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 44 states have call predecessors, (44), 44 states have call successors, (44) [2023-12-25 13:21:11,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1881 states to 1881 states and 2906 transitions. [2023-12-25 13:21:11,277 INFO L78 Accepts]: Start accepts. Automaton has 1881 states and 2906 transitions. Word has length 399 [2023-12-25 13:21:11,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 13:21:11,279 INFO L495 AbstractCegarLoop]: Abstraction has 1881 states and 2906 transitions. [2023-12-25 13:21:11,279 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 73.4) internal successors, (367), 5 states have internal predecessors, (367), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-12-25 13:21:11,279 INFO L276 IsEmpty]: Start isEmpty. Operand 1881 states and 2906 transitions. [2023-12-25 13:21:11,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 401 [2023-12-25 13:21:11,282 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 13:21:11,282 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 13:21:11,282 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2023-12-25 13:21:11,282 INFO L420 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 13:21:11,282 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 13:21:11,283 INFO L85 PathProgramCache]: Analyzing trace with hash 992436653, now seen corresponding path program 1 times [2023-12-25 13:21:11,283 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-25 13:21:11,283 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [494516827] [2023-12-25 13:21:11,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 13:21:11,283 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-25 13:21:11,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:11,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2023-12-25 13:21:11,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:11,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2023-12-25 13:21:11,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:11,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2023-12-25 13:21:11,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:11,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2023-12-25 13:21:11,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:11,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2023-12-25 13:21:11,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:11,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2023-12-25 13:21:11,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:11,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2023-12-25 13:21:11,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:11,720 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2023-12-25 13:21:11,720 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-25 13:21:11,720 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [494516827] [2023-12-25 13:21:11,720 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [494516827] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 13:21:11,720 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 13:21:11,720 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-25 13:21:11,720 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1821007744] [2023-12-25 13:21:11,720 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 13:21:11,721 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-25 13:21:11,721 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-25 13:21:11,721 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-25 13:21:11,721 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-25 13:21:11,721 INFO L87 Difference]: Start difference. First operand 1881 states and 2906 transitions. Second operand has 6 states, 6 states have (on average 61.333333333333336) internal successors, (368), 6 states have internal predecessors, (368), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-12-25 13:21:11,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 13:21:11,856 INFO L93 Difference]: Finished difference Result 3902 states and 6079 transitions. [2023-12-25 13:21:11,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-25 13:21:11,856 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 61.333333333333336) internal successors, (368), 6 states have internal predecessors, (368), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 400 [2023-12-25 13:21:11,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 13:21:11,859 INFO L225 Difference]: With dead ends: 3902 [2023-12-25 13:21:11,859 INFO L226 Difference]: Without dead ends: 2778 [2023-12-25 13:21:11,860 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-12-25 13:21:11,861 INFO L413 NwaCegarLoop]: 1596 mSDtfsCounter, 2347 mSDsluCounter, 5858 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2347 SdHoareTripleChecker+Valid, 7454 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 13:21:11,861 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2347 Valid, 7454 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 13:21:11,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2778 states. [2023-12-25 13:21:11,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2778 to 1895. [2023-12-25 13:21:11,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1895 states, 1849 states have (on average 1.5359653866955112) internal successors, (2840), 1849 states have internal predecessors, (2840), 44 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 44 states have call predecessors, (44), 44 states have call successors, (44) [2023-12-25 13:21:11,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1895 states to 1895 states and 2928 transitions. [2023-12-25 13:21:11,967 INFO L78 Accepts]: Start accepts. Automaton has 1895 states and 2928 transitions. Word has length 400 [2023-12-25 13:21:11,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 13:21:11,967 INFO L495 AbstractCegarLoop]: Abstraction has 1895 states and 2928 transitions. [2023-12-25 13:21:11,967 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 61.333333333333336) internal successors, (368), 6 states have internal predecessors, (368), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-12-25 13:21:11,967 INFO L276 IsEmpty]: Start isEmpty. Operand 1895 states and 2928 transitions. [2023-12-25 13:21:11,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 401 [2023-12-25 13:21:11,970 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 13:21:11,970 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 13:21:11,970 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2023-12-25 13:21:11,972 INFO L420 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 13:21:11,972 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 13:21:11,972 INFO L85 PathProgramCache]: Analyzing trace with hash 1819006093, now seen corresponding path program 1 times [2023-12-25 13:21:11,972 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-25 13:21:11,972 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [679069324] [2023-12-25 13:21:11,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 13:21:11,973 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-25 13:21:12,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:13,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2023-12-25 13:21:13,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:13,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2023-12-25 13:21:13,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:13,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2023-12-25 13:21:13,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:13,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2023-12-25 13:21:13,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:13,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2023-12-25 13:21:13,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:13,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2023-12-25 13:21:13,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:13,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2023-12-25 13:21:13,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:13,462 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2023-12-25 13:21:13,462 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-25 13:21:13,462 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [679069324] [2023-12-25 13:21:13,462 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [679069324] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 13:21:13,462 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 13:21:13,462 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 13:21:13,462 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1246200863] [2023-12-25 13:21:13,462 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 13:21:13,463 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 13:21:13,463 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-25 13:21:13,463 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 13:21:13,463 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 13:21:13,463 INFO L87 Difference]: Start difference. First operand 1895 states and 2928 transitions. Second operand has 4 states, 4 states have (on average 92.0) internal successors, (368), 4 states have internal predecessors, (368), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-12-25 13:21:13,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 13:21:13,548 INFO L93 Difference]: Finished difference Result 1899 states and 2932 transitions. [2023-12-25 13:21:13,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 13:21:13,549 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 92.0) internal successors, (368), 4 states have internal predecessors, (368), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 400 [2023-12-25 13:21:13,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 13:21:13,551 INFO L225 Difference]: With dead ends: 1899 [2023-12-25 13:21:13,551 INFO L226 Difference]: Without dead ends: 1897 [2023-12-25 13:21:13,552 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 13:21:13,552 INFO L413 NwaCegarLoop]: 1412 mSDtfsCounter, 1 mSDsluCounter, 2819 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 4231 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 13:21:13,553 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 4231 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 13:21:13,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1897 states. [2023-12-25 13:21:13,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1897 to 1897. [2023-12-25 13:21:13,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1897 states, 1851 states have (on average 1.5353862776877363) internal successors, (2842), 1851 states have internal predecessors, (2842), 44 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 44 states have call predecessors, (44), 44 states have call successors, (44) [2023-12-25 13:21:13,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1897 states to 1897 states and 2930 transitions. [2023-12-25 13:21:13,611 INFO L78 Accepts]: Start accepts. Automaton has 1897 states and 2930 transitions. Word has length 400 [2023-12-25 13:21:13,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 13:21:13,612 INFO L495 AbstractCegarLoop]: Abstraction has 1897 states and 2930 transitions. [2023-12-25 13:21:13,612 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 92.0) internal successors, (368), 4 states have internal predecessors, (368), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-12-25 13:21:13,612 INFO L276 IsEmpty]: Start isEmpty. Operand 1897 states and 2930 transitions. [2023-12-25 13:21:13,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 402 [2023-12-25 13:21:13,615 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 13:21:13,615 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 13:21:13,615 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2023-12-25 13:21:13,615 INFO L420 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 13:21:13,615 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 13:21:13,615 INFO L85 PathProgramCache]: Analyzing trace with hash 556340965, now seen corresponding path program 1 times [2023-12-25 13:21:13,615 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-25 13:21:13,615 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [959592702] [2023-12-25 13:21:13,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 13:21:13,616 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-25 13:21:13,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:14,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2023-12-25 13:21:14,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:14,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2023-12-25 13:21:14,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:14,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2023-12-25 13:21:14,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:14,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2023-12-25 13:21:14,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:14,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2023-12-25 13:21:14,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:14,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2023-12-25 13:21:14,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:14,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2023-12-25 13:21:14,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:14,020 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2023-12-25 13:21:14,021 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-25 13:21:14,021 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [959592702] [2023-12-25 13:21:14,021 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [959592702] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 13:21:14,021 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 13:21:14,021 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 13:21:14,021 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1036644947] [2023-12-25 13:21:14,021 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 13:21:14,022 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 13:21:14,022 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-25 13:21:14,022 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 13:21:14,022 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 13:21:14,022 INFO L87 Difference]: Start difference. First operand 1897 states and 2930 transitions. Second operand has 4 states, 4 states have (on average 92.25) internal successors, (369), 4 states have internal predecessors, (369), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-12-25 13:21:14,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 13:21:14,089 INFO L93 Difference]: Finished difference Result 3040 states and 4719 transitions. [2023-12-25 13:21:14,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 13:21:14,090 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 92.25) internal successors, (369), 4 states have internal predecessors, (369), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 401 [2023-12-25 13:21:14,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 13:21:14,091 INFO L225 Difference]: With dead ends: 3040 [2023-12-25 13:21:14,091 INFO L226 Difference]: Without dead ends: 1900 [2023-12-25 13:21:14,093 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 13:21:14,093 INFO L413 NwaCegarLoop]: 1412 mSDtfsCounter, 1 mSDsluCounter, 2817 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 4229 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 13:21:14,093 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 4229 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 13:21:14,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1900 states. [2023-12-25 13:21:14,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1900 to 1899. [2023-12-25 13:21:14,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1899 states, 1853 states have (on average 1.5348084187803561) internal successors, (2844), 1853 states have internal predecessors, (2844), 44 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 44 states have call predecessors, (44), 44 states have call successors, (44) [2023-12-25 13:21:14,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1899 states to 1899 states and 2932 transitions. [2023-12-25 13:21:14,149 INFO L78 Accepts]: Start accepts. Automaton has 1899 states and 2932 transitions. Word has length 401 [2023-12-25 13:21:14,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 13:21:14,149 INFO L495 AbstractCegarLoop]: Abstraction has 1899 states and 2932 transitions. [2023-12-25 13:21:14,149 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 92.25) internal successors, (369), 4 states have internal predecessors, (369), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-12-25 13:21:14,149 INFO L276 IsEmpty]: Start isEmpty. Operand 1899 states and 2932 transitions. [2023-12-25 13:21:14,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 403 [2023-12-25 13:21:14,152 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 13:21:14,152 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 13:21:14,152 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2023-12-25 13:21:14,153 INFO L420 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 13:21:14,153 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 13:21:14,153 INFO L85 PathProgramCache]: Analyzing trace with hash -143729753, now seen corresponding path program 1 times [2023-12-25 13:21:14,153 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-25 13:21:14,153 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [817130282] [2023-12-25 13:21:14,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 13:21:14,153 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-25 13:21:14,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:15,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2023-12-25 13:21:15,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:15,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2023-12-25 13:21:15,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:15,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2023-12-25 13:21:15,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:15,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2023-12-25 13:21:15,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:15,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2023-12-25 13:21:15,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:15,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2023-12-25 13:21:15,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:15,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2023-12-25 13:21:15,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:15,446 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2023-12-25 13:21:15,446 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-25 13:21:15,446 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [817130282] [2023-12-25 13:21:15,446 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [817130282] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 13:21:15,446 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 13:21:15,446 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-25 13:21:15,446 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [944956089] [2023-12-25 13:21:15,447 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 13:21:15,447 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-25 13:21:15,447 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-25 13:21:15,447 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-25 13:21:15,447 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-25 13:21:15,448 INFO L87 Difference]: Start difference. First operand 1899 states and 2932 transitions. Second operand has 7 states, 7 states have (on average 52.857142857142854) internal successors, (370), 7 states have internal predecessors, (370), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-12-25 13:21:15,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 13:21:15,798 INFO L93 Difference]: Finished difference Result 5533 states and 8602 transitions. [2023-12-25 13:21:15,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-25 13:21:15,799 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 52.857142857142854) internal successors, (370), 7 states have internal predecessors, (370), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 402 [2023-12-25 13:21:15,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 13:21:15,802 INFO L225 Difference]: With dead ends: 5533 [2023-12-25 13:21:15,803 INFO L226 Difference]: Without dead ends: 4391 [2023-12-25 13:21:15,804 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2023-12-25 13:21:15,804 INFO L413 NwaCegarLoop]: 1959 mSDtfsCounter, 7723 mSDsluCounter, 6298 mSDsCounter, 0 mSdLazyCounter, 157 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7730 SdHoareTripleChecker+Valid, 8257 SdHoareTripleChecker+Invalid, 200 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 157 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 13:21:15,804 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7730 Valid, 8257 Invalid, 200 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 157 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 13:21:15,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4391 states. [2023-12-25 13:21:15,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4391 to 2667. [2023-12-25 13:21:15,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2667 states, 2606 states have (on average 1.5295471987720646) internal successors, (3986), 2606 states have internal predecessors, (3986), 59 states have call successors, (59), 1 states have call predecessors, (59), 1 states have return successors, (59), 59 states have call predecessors, (59), 59 states have call successors, (59) [2023-12-25 13:21:15,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2667 states to 2667 states and 4104 transitions. [2023-12-25 13:21:15,895 INFO L78 Accepts]: Start accepts. Automaton has 2667 states and 4104 transitions. Word has length 402 [2023-12-25 13:21:15,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 13:21:15,895 INFO L495 AbstractCegarLoop]: Abstraction has 2667 states and 4104 transitions. [2023-12-25 13:21:15,895 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 52.857142857142854) internal successors, (370), 7 states have internal predecessors, (370), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-12-25 13:21:15,895 INFO L276 IsEmpty]: Start isEmpty. Operand 2667 states and 4104 transitions. [2023-12-25 13:21:15,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 947 [2023-12-25 13:21:15,904 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 13:21:15,904 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 13:21:15,904 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2023-12-25 13:21:15,904 INFO L420 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 13:21:15,904 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 13:21:15,905 INFO L85 PathProgramCache]: Analyzing trace with hash 17909423, now seen corresponding path program 1 times [2023-12-25 13:21:15,905 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-25 13:21:15,905 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1601330659] [2023-12-25 13:21:15,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 13:21:15,905 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-25 13:21:16,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:17,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2023-12-25 13:21:17,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:17,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2023-12-25 13:21:17,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:17,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2023-12-25 13:21:17,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:17,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2023-12-25 13:21:17,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:17,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2023-12-25 13:21:17,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:17,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2023-12-25 13:21:17,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:17,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2023-12-25 13:21:17,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:17,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 650 [2023-12-25 13:21:17,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:17,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 665 [2023-12-25 13:21:17,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:17,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 684 [2023-12-25 13:21:17,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:17,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 701 [2023-12-25 13:21:17,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:17,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 712 [2023-12-25 13:21:17,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:17,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 724 [2023-12-25 13:21:17,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:17,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 737 [2023-12-25 13:21:17,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:17,597 INFO L134 CoverageAnalysis]: Checked inductivity of 641 backedges. 277 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-25 13:21:17,597 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-25 13:21:17,597 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1601330659] [2023-12-25 13:21:17,597 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1601330659] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 13:21:17,597 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 13:21:17,597 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 13:21:17,597 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1299372796] [2023-12-25 13:21:17,597 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 13:21:17,598 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 13:21:17,598 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-25 13:21:17,598 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 13:21:17,599 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-25 13:21:17,599 INFO L87 Difference]: Start difference. First operand 2667 states and 4104 transitions. Second operand has 5 states, 5 states have (on average 175.8) internal successors, (879), 5 states have internal predecessors, (879), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-25 13:21:17,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 13:21:17,778 INFO L93 Difference]: Finished difference Result 3809 states and 5891 transitions. [2023-12-25 13:21:17,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 13:21:17,779 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 175.8) internal successors, (879), 5 states have internal predecessors, (879), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 946 [2023-12-25 13:21:17,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 13:21:17,781 INFO L225 Difference]: With dead ends: 3809 [2023-12-25 13:21:17,781 INFO L226 Difference]: Without dead ends: 2667 [2023-12-25 13:21:17,782 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-12-25 13:21:17,782 INFO L413 NwaCegarLoop]: 1352 mSDtfsCounter, 2168 mSDsluCounter, 1354 mSDsCounter, 0 mSdLazyCounter, 128 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2175 SdHoareTripleChecker+Valid, 2706 SdHoareTripleChecker+Invalid, 129 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 128 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 13:21:17,782 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2175 Valid, 2706 Invalid, 129 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 128 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 13:21:17,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2667 states. [2023-12-25 13:21:17,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2667 to 2667. [2023-12-25 13:21:17,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2667 states, 2606 states have (on average 1.529163468917882) internal successors, (3985), 2606 states have internal predecessors, (3985), 59 states have call successors, (59), 1 states have call predecessors, (59), 1 states have return successors, (59), 59 states have call predecessors, (59), 59 states have call successors, (59) [2023-12-25 13:21:17,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2667 states to 2667 states and 4103 transitions. [2023-12-25 13:21:17,864 INFO L78 Accepts]: Start accepts. Automaton has 2667 states and 4103 transitions. Word has length 946 [2023-12-25 13:21:17,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 13:21:17,865 INFO L495 AbstractCegarLoop]: Abstraction has 2667 states and 4103 transitions. [2023-12-25 13:21:17,865 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 175.8) internal successors, (879), 5 states have internal predecessors, (879), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-25 13:21:17,865 INFO L276 IsEmpty]: Start isEmpty. Operand 2667 states and 4103 transitions. [2023-12-25 13:21:17,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 948 [2023-12-25 13:21:17,873 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 13:21:17,874 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 13:21:17,874 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2023-12-25 13:21:17,874 INFO L420 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 13:21:17,874 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 13:21:17,874 INFO L85 PathProgramCache]: Analyzing trace with hash -2125472645, now seen corresponding path program 1 times [2023-12-25 13:21:17,874 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-25 13:21:17,875 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [771850260] [2023-12-25 13:21:17,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 13:21:17,875 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-25 13:21:18,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:19,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2023-12-25 13:21:19,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:19,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2023-12-25 13:21:19,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:19,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2023-12-25 13:21:19,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:19,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2023-12-25 13:21:19,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:19,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2023-12-25 13:21:19,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:19,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2023-12-25 13:21:19,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:19,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2023-12-25 13:21:19,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:19,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 651 [2023-12-25 13:21:19,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:19,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 666 [2023-12-25 13:21:19,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:19,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 685 [2023-12-25 13:21:19,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:19,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 702 [2023-12-25 13:21:19,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:19,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 713 [2023-12-25 13:21:19,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:19,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 725 [2023-12-25 13:21:19,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:19,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 738 [2023-12-25 13:21:19,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:19,022 INFO L134 CoverageAnalysis]: Checked inductivity of 641 backedges. 277 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-25 13:21:19,022 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-25 13:21:19,022 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [771850260] [2023-12-25 13:21:19,022 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [771850260] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 13:21:19,022 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 13:21:19,022 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 13:21:19,022 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2026862094] [2023-12-25 13:21:19,022 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 13:21:19,023 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 13:21:19,023 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-25 13:21:19,024 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 13:21:19,024 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-25 13:21:19,024 INFO L87 Difference]: Start difference. First operand 2667 states and 4103 transitions. Second operand has 5 states, 5 states have (on average 176.0) internal successors, (880), 5 states have internal predecessors, (880), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-25 13:21:19,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 13:21:19,246 INFO L93 Difference]: Finished difference Result 3809 states and 5889 transitions. [2023-12-25 13:21:19,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 13:21:19,247 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 176.0) internal successors, (880), 5 states have internal predecessors, (880), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 947 [2023-12-25 13:21:19,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 13:21:19,249 INFO L225 Difference]: With dead ends: 3809 [2023-12-25 13:21:19,249 INFO L226 Difference]: Without dead ends: 2667 [2023-12-25 13:21:19,250 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-12-25 13:21:19,263 INFO L413 NwaCegarLoop]: 1352 mSDtfsCounter, 1173 mSDsluCounter, 1364 mSDsCounter, 0 mSdLazyCounter, 126 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1180 SdHoareTripleChecker+Valid, 2716 SdHoareTripleChecker+Invalid, 127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 126 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 13:21:19,263 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1180 Valid, 2716 Invalid, 127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 126 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 13:21:19,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2667 states. [2023-12-25 13:21:19,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2667 to 2667. [2023-12-25 13:21:19,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2667 states, 2606 states have (on average 1.5287797390636992) internal successors, (3984), 2606 states have internal predecessors, (3984), 59 states have call successors, (59), 1 states have call predecessors, (59), 1 states have return successors, (59), 59 states have call predecessors, (59), 59 states have call successors, (59) [2023-12-25 13:21:19,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2667 states to 2667 states and 4102 transitions. [2023-12-25 13:21:19,450 INFO L78 Accepts]: Start accepts. Automaton has 2667 states and 4102 transitions. Word has length 947 [2023-12-25 13:21:19,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 13:21:19,451 INFO L495 AbstractCegarLoop]: Abstraction has 2667 states and 4102 transitions. [2023-12-25 13:21:19,451 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 176.0) internal successors, (880), 5 states have internal predecessors, (880), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-25 13:21:19,451 INFO L276 IsEmpty]: Start isEmpty. Operand 2667 states and 4102 transitions. [2023-12-25 13:21:19,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 949 [2023-12-25 13:21:19,462 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 13:21:19,463 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 13:21:19,463 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2023-12-25 13:21:19,463 INFO L420 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 13:21:19,463 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 13:21:19,463 INFO L85 PathProgramCache]: Analyzing trace with hash 891520127, now seen corresponding path program 1 times [2023-12-25 13:21:19,463 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-25 13:21:19,463 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1048658436] [2023-12-25 13:21:19,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 13:21:19,464 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-25 13:21:19,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:20,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2023-12-25 13:21:20,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:20,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2023-12-25 13:21:20,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:20,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2023-12-25 13:21:20,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:20,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2023-12-25 13:21:20,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:20,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2023-12-25 13:21:20,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:20,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2023-12-25 13:21:20,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:20,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2023-12-25 13:21:20,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:20,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 652 [2023-12-25 13:21:20,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:20,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 667 [2023-12-25 13:21:20,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:20,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 686 [2023-12-25 13:21:20,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:20,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 703 [2023-12-25 13:21:20,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:20,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 714 [2023-12-25 13:21:20,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:20,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 726 [2023-12-25 13:21:20,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:20,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 739 [2023-12-25 13:21:20,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:20,680 INFO L134 CoverageAnalysis]: Checked inductivity of 641 backedges. 277 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-25 13:21:20,680 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-25 13:21:20,680 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1048658436] [2023-12-25 13:21:20,681 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1048658436] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 13:21:20,681 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 13:21:20,681 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 13:21:20,681 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [317560150] [2023-12-25 13:21:20,681 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 13:21:20,681 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 13:21:20,681 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-25 13:21:20,682 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 13:21:20,682 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-25 13:21:20,682 INFO L87 Difference]: Start difference. First operand 2667 states and 4102 transitions. Second operand has 5 states, 5 states have (on average 176.2) internal successors, (881), 5 states have internal predecessors, (881), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-25 13:21:20,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 13:21:20,847 INFO L93 Difference]: Finished difference Result 3809 states and 5887 transitions. [2023-12-25 13:21:20,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 13:21:20,847 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 176.2) internal successors, (881), 5 states have internal predecessors, (881), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 948 [2023-12-25 13:21:20,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 13:21:20,850 INFO L225 Difference]: With dead ends: 3809 [2023-12-25 13:21:20,850 INFO L226 Difference]: Without dead ends: 2667 [2023-12-25 13:21:20,851 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-12-25 13:21:20,851 INFO L413 NwaCegarLoop]: 1352 mSDtfsCounter, 2136 mSDsluCounter, 1354 mSDsCounter, 0 mSdLazyCounter, 124 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2143 SdHoareTripleChecker+Valid, 2706 SdHoareTripleChecker+Invalid, 125 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 124 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 13:21:20,851 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2143 Valid, 2706 Invalid, 125 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 124 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 13:21:20,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2667 states. [2023-12-25 13:21:20,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2667 to 2667. [2023-12-25 13:21:20,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2667 states, 2606 states have (on average 1.5283960092095166) internal successors, (3983), 2606 states have internal predecessors, (3983), 59 states have call successors, (59), 1 states have call predecessors, (59), 1 states have return successors, (59), 59 states have call predecessors, (59), 59 states have call successors, (59) [2023-12-25 13:21:20,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2667 states to 2667 states and 4101 transitions. [2023-12-25 13:21:20,933 INFO L78 Accepts]: Start accepts. Automaton has 2667 states and 4101 transitions. Word has length 948 [2023-12-25 13:21:20,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 13:21:20,934 INFO L495 AbstractCegarLoop]: Abstraction has 2667 states and 4101 transitions. [2023-12-25 13:21:20,934 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 176.2) internal successors, (881), 5 states have internal predecessors, (881), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-25 13:21:20,934 INFO L276 IsEmpty]: Start isEmpty. Operand 2667 states and 4101 transitions. [2023-12-25 13:21:20,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 950 [2023-12-25 13:21:20,942 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 13:21:20,943 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 13:21:20,943 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2023-12-25 13:21:20,943 INFO L420 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 13:21:20,943 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 13:21:20,943 INFO L85 PathProgramCache]: Analyzing trace with hash 678586505, now seen corresponding path program 1 times [2023-12-25 13:21:20,943 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-25 13:21:20,943 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1684161365] [2023-12-25 13:21:20,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 13:21:20,944 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-25 13:21:21,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:22,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2023-12-25 13:21:22,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:22,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2023-12-25 13:21:22,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:22,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2023-12-25 13:21:22,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:22,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2023-12-25 13:21:22,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:22,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2023-12-25 13:21:22,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:22,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2023-12-25 13:21:22,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:22,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2023-12-25 13:21:22,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:22,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 653 [2023-12-25 13:21:22,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:22,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 668 [2023-12-25 13:21:22,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:22,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 687 [2023-12-25 13:21:22,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:22,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 704 [2023-12-25 13:21:22,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:22,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 715 [2023-12-25 13:21:22,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:22,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 727 [2023-12-25 13:21:22,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:22,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 740 [2023-12-25 13:21:22,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:22,164 INFO L134 CoverageAnalysis]: Checked inductivity of 641 backedges. 277 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-25 13:21:22,164 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-25 13:21:22,164 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1684161365] [2023-12-25 13:21:22,164 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1684161365] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 13:21:22,164 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 13:21:22,164 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 13:21:22,164 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1495718108] [2023-12-25 13:21:22,164 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 13:21:22,165 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 13:21:22,165 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-25 13:21:22,166 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 13:21:22,166 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-25 13:21:22,166 INFO L87 Difference]: Start difference. First operand 2667 states and 4101 transitions. Second operand has 5 states, 5 states have (on average 176.4) internal successors, (882), 5 states have internal predecessors, (882), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-25 13:21:22,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 13:21:22,358 INFO L93 Difference]: Finished difference Result 3809 states and 5885 transitions. [2023-12-25 13:21:22,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 13:21:22,359 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 176.4) internal successors, (882), 5 states have internal predecessors, (882), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 949 [2023-12-25 13:21:22,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 13:21:22,361 INFO L225 Difference]: With dead ends: 3809 [2023-12-25 13:21:22,361 INFO L226 Difference]: Without dead ends: 2667 [2023-12-25 13:21:22,362 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-12-25 13:21:22,363 INFO L413 NwaCegarLoop]: 1352 mSDtfsCounter, 2120 mSDsluCounter, 1354 mSDsCounter, 0 mSdLazyCounter, 122 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2127 SdHoareTripleChecker+Valid, 2706 SdHoareTripleChecker+Invalid, 123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 122 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 13:21:22,363 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2127 Valid, 2706 Invalid, 123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 122 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 13:21:22,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2667 states. [2023-12-25 13:21:22,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2667 to 2667. [2023-12-25 13:21:22,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2667 states, 2606 states have (on average 1.528012279355334) internal successors, (3982), 2606 states have internal predecessors, (3982), 59 states have call successors, (59), 1 states have call predecessors, (59), 1 states have return successors, (59), 59 states have call predecessors, (59), 59 states have call successors, (59) [2023-12-25 13:21:22,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2667 states to 2667 states and 4100 transitions. [2023-12-25 13:21:22,446 INFO L78 Accepts]: Start accepts. Automaton has 2667 states and 4100 transitions. Word has length 949 [2023-12-25 13:21:22,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 13:21:22,447 INFO L495 AbstractCegarLoop]: Abstraction has 2667 states and 4100 transitions. [2023-12-25 13:21:22,447 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 176.4) internal successors, (882), 5 states have internal predecessors, (882), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-25 13:21:22,447 INFO L276 IsEmpty]: Start isEmpty. Operand 2667 states and 4100 transitions. [2023-12-25 13:21:22,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 951 [2023-12-25 13:21:22,456 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 13:21:22,456 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 13:21:22,457 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2023-12-25 13:21:22,457 INFO L420 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 13:21:22,457 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 13:21:22,457 INFO L85 PathProgramCache]: Analyzing trace with hash 292082637, now seen corresponding path program 1 times [2023-12-25 13:21:22,457 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-25 13:21:22,457 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1360449368] [2023-12-25 13:21:22,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 13:21:22,457 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-25 13:21:22,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:23,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2023-12-25 13:21:23,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:23,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2023-12-25 13:21:23,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:23,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2023-12-25 13:21:23,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:23,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2023-12-25 13:21:23,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:23,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2023-12-25 13:21:23,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:23,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2023-12-25 13:21:23,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:23,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2023-12-25 13:21:23,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:23,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 654 [2023-12-25 13:21:23,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:23,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 669 [2023-12-25 13:21:23,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:23,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 688 [2023-12-25 13:21:23,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:23,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 705 [2023-12-25 13:21:23,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:23,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 716 [2023-12-25 13:21:23,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:23,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 728 [2023-12-25 13:21:23,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:23,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 741 [2023-12-25 13:21:23,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:23,792 INFO L134 CoverageAnalysis]: Checked inductivity of 641 backedges. 277 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-25 13:21:23,792 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-25 13:21:23,792 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1360449368] [2023-12-25 13:21:23,792 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1360449368] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 13:21:23,792 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 13:21:23,792 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 13:21:23,792 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1114957350] [2023-12-25 13:21:23,793 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 13:21:23,794 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 13:21:23,794 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-25 13:21:23,794 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 13:21:23,794 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-25 13:21:23,795 INFO L87 Difference]: Start difference. First operand 2667 states and 4100 transitions. Second operand has 5 states, 5 states have (on average 176.6) internal successors, (883), 5 states have internal predecessors, (883), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-25 13:21:23,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 13:21:23,940 INFO L93 Difference]: Finished difference Result 3809 states and 5883 transitions. [2023-12-25 13:21:23,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 13:21:23,941 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 176.6) internal successors, (883), 5 states have internal predecessors, (883), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 950 [2023-12-25 13:21:23,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 13:21:23,943 INFO L225 Difference]: With dead ends: 3809 [2023-12-25 13:21:23,943 INFO L226 Difference]: Without dead ends: 2667 [2023-12-25 13:21:23,944 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-12-25 13:21:23,944 INFO L413 NwaCegarLoop]: 1372 mSDtfsCounter, 1143 mSDsluCounter, 1384 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1150 SdHoareTripleChecker+Valid, 2756 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 13:21:23,945 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1150 Valid, 2756 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 13:21:23,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2667 states. [2023-12-25 13:21:24,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2667 to 2667. [2023-12-25 13:21:24,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2667 states, 2606 states have (on average 1.5276285495011512) internal successors, (3981), 2606 states have internal predecessors, (3981), 59 states have call successors, (59), 1 states have call predecessors, (59), 1 states have return successors, (59), 59 states have call predecessors, (59), 59 states have call successors, (59) [2023-12-25 13:21:24,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2667 states to 2667 states and 4099 transitions. [2023-12-25 13:21:24,061 INFO L78 Accepts]: Start accepts. Automaton has 2667 states and 4099 transitions. Word has length 950 [2023-12-25 13:21:24,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 13:21:24,061 INFO L495 AbstractCegarLoop]: Abstraction has 2667 states and 4099 transitions. [2023-12-25 13:21:24,061 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 176.6) internal successors, (883), 5 states have internal predecessors, (883), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-25 13:21:24,061 INFO L276 IsEmpty]: Start isEmpty. Operand 2667 states and 4099 transitions. [2023-12-25 13:21:24,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 952 [2023-12-25 13:21:24,069 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 13:21:24,070 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 13:21:24,070 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2023-12-25 13:21:24,070 INFO L420 AbstractCegarLoop]: === Iteration 56 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 13:21:24,070 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 13:21:24,070 INFO L85 PathProgramCache]: Analyzing trace with hash -210288555, now seen corresponding path program 1 times [2023-12-25 13:21:24,070 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-25 13:21:24,070 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [608409431] [2023-12-25 13:21:24,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 13:21:24,071 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-25 13:21:24,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:25,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2023-12-25 13:21:25,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:25,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2023-12-25 13:21:25,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:25,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2023-12-25 13:21:25,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:25,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2023-12-25 13:21:25,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:25,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2023-12-25 13:21:25,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:25,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2023-12-25 13:21:25,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:25,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2023-12-25 13:21:25,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:25,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 655 [2023-12-25 13:21:25,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:25,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 670 [2023-12-25 13:21:25,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:25,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 689 [2023-12-25 13:21:25,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:25,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 706 [2023-12-25 13:21:25,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:25,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 717 [2023-12-25 13:21:25,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:25,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 729 [2023-12-25 13:21:25,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:25,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 742 [2023-12-25 13:21:25,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:25,389 INFO L134 CoverageAnalysis]: Checked inductivity of 641 backedges. 277 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-25 13:21:25,389 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-25 13:21:25,389 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [608409431] [2023-12-25 13:21:25,389 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [608409431] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 13:21:25,389 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 13:21:25,389 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 13:21:25,389 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [669953123] [2023-12-25 13:21:25,389 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 13:21:25,390 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 13:21:25,390 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-25 13:21:25,391 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 13:21:25,391 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-25 13:21:25,391 INFO L87 Difference]: Start difference. First operand 2667 states and 4099 transitions. Second operand has 5 states, 5 states have (on average 176.8) internal successors, (884), 5 states have internal predecessors, (884), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-25 13:21:25,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 13:21:25,531 INFO L93 Difference]: Finished difference Result 3809 states and 5881 transitions. [2023-12-25 13:21:25,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 13:21:25,532 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 176.8) internal successors, (884), 5 states have internal predecessors, (884), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 951 [2023-12-25 13:21:25,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 13:21:25,534 INFO L225 Difference]: With dead ends: 3809 [2023-12-25 13:21:25,534 INFO L226 Difference]: Without dead ends: 2667 [2023-12-25 13:21:25,535 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-12-25 13:21:25,536 INFO L413 NwaCegarLoop]: 1372 mSDtfsCounter, 2082 mSDsluCounter, 1374 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2089 SdHoareTripleChecker+Valid, 2746 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 13:21:25,536 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2089 Valid, 2746 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 13:21:25,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2667 states. [2023-12-25 13:21:25,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2667 to 2667. [2023-12-25 13:21:25,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2667 states, 2606 states have (on average 1.5272448196469686) internal successors, (3980), 2606 states have internal predecessors, (3980), 59 states have call successors, (59), 1 states have call predecessors, (59), 1 states have return successors, (59), 59 states have call predecessors, (59), 59 states have call successors, (59) [2023-12-25 13:21:25,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2667 states to 2667 states and 4098 transitions. [2023-12-25 13:21:25,616 INFO L78 Accepts]: Start accepts. Automaton has 2667 states and 4098 transitions. Word has length 951 [2023-12-25 13:21:25,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 13:21:25,617 INFO L495 AbstractCegarLoop]: Abstraction has 2667 states and 4098 transitions. [2023-12-25 13:21:25,617 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 176.8) internal successors, (884), 5 states have internal predecessors, (884), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-25 13:21:25,617 INFO L276 IsEmpty]: Start isEmpty. Operand 2667 states and 4098 transitions. [2023-12-25 13:21:25,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 953 [2023-12-25 13:21:25,625 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 13:21:25,625 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 13:21:25,626 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2023-12-25 13:21:25,626 INFO L420 AbstractCegarLoop]: === Iteration 57 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 13:21:25,626 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 13:21:25,626 INFO L85 PathProgramCache]: Analyzing trace with hash 645519645, now seen corresponding path program 1 times [2023-12-25 13:21:25,626 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-25 13:21:25,626 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1369604002] [2023-12-25 13:21:25,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 13:21:25,626 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-25 13:21:26,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:26,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2023-12-25 13:21:26,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:26,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2023-12-25 13:21:26,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:26,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2023-12-25 13:21:26,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:26,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2023-12-25 13:21:26,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:26,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2023-12-25 13:21:26,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:26,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2023-12-25 13:21:26,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:26,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2023-12-25 13:21:26,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:26,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 656 [2023-12-25 13:21:26,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:26,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 671 [2023-12-25 13:21:26,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:26,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 690 [2023-12-25 13:21:26,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:27,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 707 [2023-12-25 13:21:27,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:27,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 718 [2023-12-25 13:21:27,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:27,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 730 [2023-12-25 13:21:27,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:27,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 743 [2023-12-25 13:21:27,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:27,003 INFO L134 CoverageAnalysis]: Checked inductivity of 641 backedges. 277 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-25 13:21:27,004 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-25 13:21:27,004 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1369604002] [2023-12-25 13:21:27,004 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1369604002] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 13:21:27,004 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 13:21:27,004 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 13:21:27,004 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [12464617] [2023-12-25 13:21:27,004 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 13:21:27,005 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 13:21:27,005 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-25 13:21:27,006 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 13:21:27,006 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-25 13:21:27,006 INFO L87 Difference]: Start difference. First operand 2667 states and 4098 transitions. Second operand has 5 states, 5 states have (on average 177.0) internal successors, (885), 5 states have internal predecessors, (885), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-25 13:21:27,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 13:21:27,470 INFO L93 Difference]: Finished difference Result 3809 states and 5879 transitions. [2023-12-25 13:21:27,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 13:21:27,471 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 177.0) internal successors, (885), 5 states have internal predecessors, (885), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 952 [2023-12-25 13:21:27,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 13:21:27,473 INFO L225 Difference]: With dead ends: 3809 [2023-12-25 13:21:27,473 INFO L226 Difference]: Without dead ends: 2667 [2023-12-25 13:21:27,474 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-12-25 13:21:27,475 INFO L413 NwaCegarLoop]: 1095 mSDtfsCounter, 1041 mSDsluCounter, 1107 mSDsCounter, 0 mSdLazyCounter, 630 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1041 SdHoareTripleChecker+Valid, 2202 SdHoareTripleChecker+Invalid, 631 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 630 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-25 13:21:27,475 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1041 Valid, 2202 Invalid, 631 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 630 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-25 13:21:27,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2667 states. [2023-12-25 13:21:27,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2667 to 2667. [2023-12-25 13:21:27,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2667 states, 2606 states have (on average 1.526861089792786) internal successors, (3979), 2606 states have internal predecessors, (3979), 59 states have call successors, (59), 1 states have call predecessors, (59), 1 states have return successors, (59), 59 states have call predecessors, (59), 59 states have call successors, (59) [2023-12-25 13:21:27,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2667 states to 2667 states and 4097 transitions. [2023-12-25 13:21:27,559 INFO L78 Accepts]: Start accepts. Automaton has 2667 states and 4097 transitions. Word has length 952 [2023-12-25 13:21:27,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 13:21:27,559 INFO L495 AbstractCegarLoop]: Abstraction has 2667 states and 4097 transitions. [2023-12-25 13:21:27,559 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 177.0) internal successors, (885), 5 states have internal predecessors, (885), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-25 13:21:27,559 INFO L276 IsEmpty]: Start isEmpty. Operand 2667 states and 4097 transitions. [2023-12-25 13:21:27,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 954 [2023-12-25 13:21:27,567 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 13:21:27,568 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 13:21:27,571 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2023-12-25 13:21:27,571 INFO L420 AbstractCegarLoop]: === Iteration 58 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 13:21:27,571 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 13:21:27,571 INFO L85 PathProgramCache]: Analyzing trace with hash 547106531, now seen corresponding path program 1 times [2023-12-25 13:21:27,571 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-25 13:21:27,571 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [349676531] [2023-12-25 13:21:27,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 13:21:27,572 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-25 13:21:28,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:28,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2023-12-25 13:21:28,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:28,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2023-12-25 13:21:28,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:28,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2023-12-25 13:21:28,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:28,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2023-12-25 13:21:28,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:28,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2023-12-25 13:21:28,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:28,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2023-12-25 13:21:28,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:28,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2023-12-25 13:21:28,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:28,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 657 [2023-12-25 13:21:28,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:28,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 672 [2023-12-25 13:21:28,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:28,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 691 [2023-12-25 13:21:28,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:28,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 708 [2023-12-25 13:21:28,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:28,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 719 [2023-12-25 13:21:28,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:28,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 731 [2023-12-25 13:21:28,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:28,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 744 [2023-12-25 13:21:28,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:28,804 INFO L134 CoverageAnalysis]: Checked inductivity of 641 backedges. 277 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-25 13:21:28,804 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-25 13:21:28,804 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [349676531] [2023-12-25 13:21:28,804 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [349676531] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 13:21:28,804 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 13:21:28,805 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 13:21:28,805 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1096671371] [2023-12-25 13:21:28,805 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 13:21:28,805 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 13:21:28,805 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-25 13:21:28,806 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 13:21:28,806 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-25 13:21:28,806 INFO L87 Difference]: Start difference. First operand 2667 states and 4097 transitions. Second operand has 5 states, 5 states have (on average 177.2) internal successors, (886), 5 states have internal predecessors, (886), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-25 13:21:28,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 13:21:28,980 INFO L93 Difference]: Finished difference Result 3809 states and 5877 transitions. [2023-12-25 13:21:28,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 13:21:28,981 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 177.2) internal successors, (886), 5 states have internal predecessors, (886), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 953 [2023-12-25 13:21:28,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 13:21:28,983 INFO L225 Difference]: With dead ends: 3809 [2023-12-25 13:21:28,983 INFO L226 Difference]: Without dead ends: 2667 [2023-12-25 13:21:28,985 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-12-25 13:21:28,985 INFO L413 NwaCegarLoop]: 1349 mSDtfsCounter, 1956 mSDsluCounter, 1351 mSDsCounter, 0 mSdLazyCounter, 120 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1963 SdHoareTripleChecker+Valid, 2700 SdHoareTripleChecker+Invalid, 121 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 120 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 13:21:28,985 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1963 Valid, 2700 Invalid, 121 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 120 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 13:21:28,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2667 states. [2023-12-25 13:21:29,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2667 to 2667. [2023-12-25 13:21:29,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2667 states, 2606 states have (on average 1.5264773599386032) internal successors, (3978), 2606 states have internal predecessors, (3978), 59 states have call successors, (59), 1 states have call predecessors, (59), 1 states have return successors, (59), 59 states have call predecessors, (59), 59 states have call successors, (59) [2023-12-25 13:21:29,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2667 states to 2667 states and 4096 transitions. [2023-12-25 13:21:29,071 INFO L78 Accepts]: Start accepts. Automaton has 2667 states and 4096 transitions. Word has length 953 [2023-12-25 13:21:29,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 13:21:29,071 INFO L495 AbstractCegarLoop]: Abstraction has 2667 states and 4096 transitions. [2023-12-25 13:21:29,071 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 177.2) internal successors, (886), 5 states have internal predecessors, (886), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-25 13:21:29,071 INFO L276 IsEmpty]: Start isEmpty. Operand 2667 states and 4096 transitions. [2023-12-25 13:21:29,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 955 [2023-12-25 13:21:29,079 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 13:21:29,080 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 13:21:29,080 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2023-12-25 13:21:29,080 INFO L420 AbstractCegarLoop]: === Iteration 59 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 13:21:29,080 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 13:21:29,080 INFO L85 PathProgramCache]: Analyzing trace with hash -191374667, now seen corresponding path program 1 times [2023-12-25 13:21:29,080 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-25 13:21:29,080 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [421342461] [2023-12-25 13:21:29,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 13:21:29,081 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-25 13:21:29,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:30,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2023-12-25 13:21:30,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:30,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2023-12-25 13:21:30,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:30,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2023-12-25 13:21:30,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:30,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2023-12-25 13:21:30,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:30,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2023-12-25 13:21:30,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:30,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2023-12-25 13:21:30,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:30,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2023-12-25 13:21:30,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:30,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 658 [2023-12-25 13:21:30,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:30,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 673 [2023-12-25 13:21:30,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:30,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 692 [2023-12-25 13:21:30,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:30,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 709 [2023-12-25 13:21:30,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:30,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 720 [2023-12-25 13:21:30,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:30,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 732 [2023-12-25 13:21:30,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:30,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 745 [2023-12-25 13:21:30,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:30,266 INFO L134 CoverageAnalysis]: Checked inductivity of 641 backedges. 277 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-25 13:21:30,266 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-25 13:21:30,266 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [421342461] [2023-12-25 13:21:30,266 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [421342461] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 13:21:30,266 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 13:21:30,266 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 13:21:30,266 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [295559983] [2023-12-25 13:21:30,266 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 13:21:30,267 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 13:21:30,267 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-25 13:21:30,267 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 13:21:30,267 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-25 13:21:30,268 INFO L87 Difference]: Start difference. First operand 2667 states and 4096 transitions. Second operand has 5 states, 5 states have (on average 177.4) internal successors, (887), 5 states have internal predecessors, (887), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-25 13:21:30,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 13:21:30,446 INFO L93 Difference]: Finished difference Result 3809 states and 5875 transitions. [2023-12-25 13:21:30,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 13:21:30,447 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 177.4) internal successors, (887), 5 states have internal predecessors, (887), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 954 [2023-12-25 13:21:30,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 13:21:30,449 INFO L225 Difference]: With dead ends: 3809 [2023-12-25 13:21:30,449 INFO L226 Difference]: Without dead ends: 2667 [2023-12-25 13:21:30,450 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-12-25 13:21:30,451 INFO L413 NwaCegarLoop]: 1349 mSDtfsCounter, 1940 mSDsluCounter, 1351 mSDsCounter, 0 mSdLazyCounter, 118 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1947 SdHoareTripleChecker+Valid, 2700 SdHoareTripleChecker+Invalid, 119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 118 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 13:21:30,451 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1947 Valid, 2700 Invalid, 119 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 118 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 13:21:30,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2667 states. [2023-12-25 13:21:30,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2667 to 2667. [2023-12-25 13:21:30,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2667 states, 2606 states have (on average 1.5260936300844206) internal successors, (3977), 2606 states have internal predecessors, (3977), 59 states have call successors, (59), 1 states have call predecessors, (59), 1 states have return successors, (59), 59 states have call predecessors, (59), 59 states have call successors, (59) [2023-12-25 13:21:30,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2667 states to 2667 states and 4095 transitions. [2023-12-25 13:21:30,534 INFO L78 Accepts]: Start accepts. Automaton has 2667 states and 4095 transitions. Word has length 954 [2023-12-25 13:21:30,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 13:21:30,534 INFO L495 AbstractCegarLoop]: Abstraction has 2667 states and 4095 transitions. [2023-12-25 13:21:30,534 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 177.4) internal successors, (887), 5 states have internal predecessors, (887), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-25 13:21:30,534 INFO L276 IsEmpty]: Start isEmpty. Operand 2667 states and 4095 transitions. [2023-12-25 13:21:30,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 956 [2023-12-25 13:21:30,542 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 13:21:30,542 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 13:21:30,542 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2023-12-25 13:21:30,543 INFO L420 AbstractCegarLoop]: === Iteration 60 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 13:21:30,543 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 13:21:30,543 INFO L85 PathProgramCache]: Analyzing trace with hash 488358705, now seen corresponding path program 1 times [2023-12-25 13:21:30,543 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-25 13:21:30,543 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [867871545] [2023-12-25 13:21:30,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 13:21:30,543 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-25 13:21:30,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:31,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2023-12-25 13:21:31,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:31,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2023-12-25 13:21:31,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:31,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2023-12-25 13:21:31,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:31,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2023-12-25 13:21:31,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:31,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2023-12-25 13:21:31,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:31,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2023-12-25 13:21:31,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:31,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2023-12-25 13:21:31,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:31,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 659 [2023-12-25 13:21:31,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:31,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 674 [2023-12-25 13:21:31,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:31,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 693 [2023-12-25 13:21:31,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:31,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 710 [2023-12-25 13:21:31,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:31,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 721 [2023-12-25 13:21:31,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:31,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 733 [2023-12-25 13:21:31,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:31,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 746 [2023-12-25 13:21:31,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:31,718 INFO L134 CoverageAnalysis]: Checked inductivity of 641 backedges. 277 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-25 13:21:31,718 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-25 13:21:31,718 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [867871545] [2023-12-25 13:21:31,718 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [867871545] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 13:21:31,718 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 13:21:31,718 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 13:21:31,718 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2095495017] [2023-12-25 13:21:31,718 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 13:21:31,719 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 13:21:31,719 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-25 13:21:31,719 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 13:21:31,720 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-25 13:21:31,720 INFO L87 Difference]: Start difference. First operand 2667 states and 4095 transitions. Second operand has 5 states, 5 states have (on average 177.6) internal successors, (888), 5 states have internal predecessors, (888), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-25 13:21:31,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 13:21:31,884 INFO L93 Difference]: Finished difference Result 3809 states and 5873 transitions. [2023-12-25 13:21:31,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 13:21:31,884 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 177.6) internal successors, (888), 5 states have internal predecessors, (888), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 955 [2023-12-25 13:21:31,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 13:21:31,887 INFO L225 Difference]: With dead ends: 3809 [2023-12-25 13:21:31,887 INFO L226 Difference]: Without dead ends: 2667 [2023-12-25 13:21:31,888 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-12-25 13:21:31,888 INFO L413 NwaCegarLoop]: 1349 mSDtfsCounter, 1924 mSDsluCounter, 1351 mSDsCounter, 0 mSdLazyCounter, 116 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1931 SdHoareTripleChecker+Valid, 2700 SdHoareTripleChecker+Invalid, 117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 116 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 13:21:31,888 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1931 Valid, 2700 Invalid, 117 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 116 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 13:21:31,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2667 states. [2023-12-25 13:21:31,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2667 to 2667. [2023-12-25 13:21:31,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2667 states, 2606 states have (on average 1.525709900230238) internal successors, (3976), 2606 states have internal predecessors, (3976), 59 states have call successors, (59), 1 states have call predecessors, (59), 1 states have return successors, (59), 59 states have call predecessors, (59), 59 states have call successors, (59) [2023-12-25 13:21:31,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2667 states to 2667 states and 4094 transitions. [2023-12-25 13:21:31,971 INFO L78 Accepts]: Start accepts. Automaton has 2667 states and 4094 transitions. Word has length 955 [2023-12-25 13:21:31,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 13:21:31,971 INFO L495 AbstractCegarLoop]: Abstraction has 2667 states and 4094 transitions. [2023-12-25 13:21:31,971 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 177.6) internal successors, (888), 5 states have internal predecessors, (888), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-25 13:21:31,972 INFO L276 IsEmpty]: Start isEmpty. Operand 2667 states and 4094 transitions. [2023-12-25 13:21:31,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 957 [2023-12-25 13:21:31,979 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 13:21:31,980 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 13:21:31,980 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2023-12-25 13:21:31,980 INFO L420 AbstractCegarLoop]: === Iteration 61 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 13:21:31,980 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 13:21:31,980 INFO L85 PathProgramCache]: Analyzing trace with hash -693317247, now seen corresponding path program 1 times [2023-12-25 13:21:31,980 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-25 13:21:31,981 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1673098989] [2023-12-25 13:21:31,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 13:21:31,981 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-25 13:21:32,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:33,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2023-12-25 13:21:33,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:33,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2023-12-25 13:21:33,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:33,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2023-12-25 13:21:33,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:33,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2023-12-25 13:21:33,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:33,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2023-12-25 13:21:33,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:33,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2023-12-25 13:21:33,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:33,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2023-12-25 13:21:33,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:33,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 660 [2023-12-25 13:21:33,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:33,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 675 [2023-12-25 13:21:33,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:33,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 694 [2023-12-25 13:21:33,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:33,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 711 [2023-12-25 13:21:33,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:33,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 722 [2023-12-25 13:21:33,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:33,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 734 [2023-12-25 13:21:33,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:33,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 747 [2023-12-25 13:21:33,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:33,207 INFO L134 CoverageAnalysis]: Checked inductivity of 641 backedges. 277 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-25 13:21:33,207 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-25 13:21:33,207 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1673098989] [2023-12-25 13:21:33,207 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1673098989] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 13:21:33,207 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 13:21:33,207 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 13:21:33,207 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [510546745] [2023-12-25 13:21:33,207 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 13:21:33,208 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 13:21:33,208 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-25 13:21:33,208 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 13:21:33,209 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-25 13:21:33,209 INFO L87 Difference]: Start difference. First operand 2667 states and 4094 transitions. Second operand has 5 states, 5 states have (on average 177.8) internal successors, (889), 5 states have internal predecessors, (889), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-25 13:21:33,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 13:21:33,391 INFO L93 Difference]: Finished difference Result 3809 states and 5871 transitions. [2023-12-25 13:21:33,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 13:21:33,392 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 177.8) internal successors, (889), 5 states have internal predecessors, (889), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 956 [2023-12-25 13:21:33,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 13:21:33,395 INFO L225 Difference]: With dead ends: 3809 [2023-12-25 13:21:33,395 INFO L226 Difference]: Without dead ends: 2667 [2023-12-25 13:21:33,397 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-12-25 13:21:33,397 INFO L413 NwaCegarLoop]: 1349 mSDtfsCounter, 1908 mSDsluCounter, 1351 mSDsCounter, 0 mSdLazyCounter, 114 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1915 SdHoareTripleChecker+Valid, 2700 SdHoareTripleChecker+Invalid, 115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 13:21:33,397 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1915 Valid, 2700 Invalid, 115 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 114 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 13:21:33,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2667 states. [2023-12-25 13:21:33,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2667 to 2667. [2023-12-25 13:21:33,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2667 states, 2606 states have (on average 1.5253261703760552) internal successors, (3975), 2606 states have internal predecessors, (3975), 59 states have call successors, (59), 1 states have call predecessors, (59), 1 states have return successors, (59), 59 states have call predecessors, (59), 59 states have call successors, (59) [2023-12-25 13:21:33,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2667 states to 2667 states and 4093 transitions. [2023-12-25 13:21:33,499 INFO L78 Accepts]: Start accepts. Automaton has 2667 states and 4093 transitions. Word has length 956 [2023-12-25 13:21:33,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 13:21:33,499 INFO L495 AbstractCegarLoop]: Abstraction has 2667 states and 4093 transitions. [2023-12-25 13:21:33,500 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 177.8) internal successors, (889), 5 states have internal predecessors, (889), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-25 13:21:33,500 INFO L276 IsEmpty]: Start isEmpty. Operand 2667 states and 4093 transitions. [2023-12-25 13:21:33,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 958 [2023-12-25 13:21:33,507 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 13:21:33,508 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 13:21:33,508 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60 [2023-12-25 13:21:33,508 INFO L420 AbstractCegarLoop]: === Iteration 62 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 13:21:33,508 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 13:21:33,508 INFO L85 PathProgramCache]: Analyzing trace with hash 383656321, now seen corresponding path program 1 times [2023-12-25 13:21:33,508 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-25 13:21:33,508 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1712690682] [2023-12-25 13:21:33,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 13:21:33,509 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-25 13:21:33,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:34,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2023-12-25 13:21:34,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:34,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2023-12-25 13:21:34,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:34,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2023-12-25 13:21:34,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:34,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2023-12-25 13:21:34,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:34,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2023-12-25 13:21:34,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:34,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2023-12-25 13:21:34,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:34,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2023-12-25 13:21:34,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:34,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 661 [2023-12-25 13:21:34,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:34,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 676 [2023-12-25 13:21:34,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:34,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 695 [2023-12-25 13:21:34,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:34,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 712 [2023-12-25 13:21:34,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:34,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 723 [2023-12-25 13:21:34,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:34,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 735 [2023-12-25 13:21:34,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:34,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 748 [2023-12-25 13:21:34,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:34,836 INFO L134 CoverageAnalysis]: Checked inductivity of 641 backedges. 277 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-25 13:21:34,836 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-25 13:21:34,836 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1712690682] [2023-12-25 13:21:34,836 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1712690682] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 13:21:34,836 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 13:21:34,837 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 13:21:34,837 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1882703688] [2023-12-25 13:21:34,837 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 13:21:34,837 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 13:21:34,837 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-25 13:21:34,859 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 13:21:34,859 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-25 13:21:34,859 INFO L87 Difference]: Start difference. First operand 2667 states and 4093 transitions. Second operand has 5 states, 5 states have (on average 178.0) internal successors, (890), 5 states have internal predecessors, (890), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-25 13:21:34,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 13:21:34,999 INFO L93 Difference]: Finished difference Result 3809 states and 5869 transitions. [2023-12-25 13:21:34,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 13:21:35,000 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 178.0) internal successors, (890), 5 states have internal predecessors, (890), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 957 [2023-12-25 13:21:35,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 13:21:35,002 INFO L225 Difference]: With dead ends: 3809 [2023-12-25 13:21:35,002 INFO L226 Difference]: Without dead ends: 2667 [2023-12-25 13:21:35,003 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-12-25 13:21:35,004 INFO L413 NwaCegarLoop]: 1367 mSDtfsCounter, 1037 mSDsluCounter, 1379 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1044 SdHoareTripleChecker+Valid, 2746 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 13:21:35,004 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1044 Valid, 2746 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 13:21:35,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2667 states. [2023-12-25 13:21:35,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2667 to 2667. [2023-12-25 13:21:35,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2667 states, 2606 states have (on average 1.5249424405218726) internal successors, (3974), 2606 states have internal predecessors, (3974), 59 states have call successors, (59), 1 states have call predecessors, (59), 1 states have return successors, (59), 59 states have call predecessors, (59), 59 states have call successors, (59) [2023-12-25 13:21:35,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2667 states to 2667 states and 4092 transitions. [2023-12-25 13:21:35,085 INFO L78 Accepts]: Start accepts. Automaton has 2667 states and 4092 transitions. Word has length 957 [2023-12-25 13:21:35,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 13:21:35,085 INFO L495 AbstractCegarLoop]: Abstraction has 2667 states and 4092 transitions. [2023-12-25 13:21:35,086 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 178.0) internal successors, (890), 5 states have internal predecessors, (890), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-25 13:21:35,086 INFO L276 IsEmpty]: Start isEmpty. Operand 2667 states and 4092 transitions. [2023-12-25 13:21:35,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 959 [2023-12-25 13:21:35,093 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 13:21:35,094 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 13:21:35,094 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61 [2023-12-25 13:21:35,094 INFO L420 AbstractCegarLoop]: === Iteration 63 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 13:21:35,094 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 13:21:35,094 INFO L85 PathProgramCache]: Analyzing trace with hash -1908083953, now seen corresponding path program 1 times [2023-12-25 13:21:35,094 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-25 13:21:35,094 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [536755489] [2023-12-25 13:21:35,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 13:21:35,095 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-25 13:21:35,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:36,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2023-12-25 13:21:36,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:36,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2023-12-25 13:21:36,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:36,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2023-12-25 13:21:36,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:36,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2023-12-25 13:21:36,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:36,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2023-12-25 13:21:36,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:36,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2023-12-25 13:21:36,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:36,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2023-12-25 13:21:36,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:36,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 662 [2023-12-25 13:21:36,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:36,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 677 [2023-12-25 13:21:36,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:36,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 696 [2023-12-25 13:21:36,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:36,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 713 [2023-12-25 13:21:36,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:36,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 724 [2023-12-25 13:21:36,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:36,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 736 [2023-12-25 13:21:36,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:36,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 749 [2023-12-25 13:21:36,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:36,441 INFO L134 CoverageAnalysis]: Checked inductivity of 641 backedges. 277 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-25 13:21:36,441 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-25 13:21:36,441 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [536755489] [2023-12-25 13:21:36,441 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [536755489] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 13:21:36,441 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 13:21:36,441 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 13:21:36,441 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [668667251] [2023-12-25 13:21:36,441 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 13:21:36,442 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 13:21:36,442 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-25 13:21:36,443 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 13:21:36,443 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-25 13:21:36,443 INFO L87 Difference]: Start difference. First operand 2667 states and 4092 transitions. Second operand has 5 states, 5 states have (on average 178.2) internal successors, (891), 5 states have internal predecessors, (891), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-25 13:21:36,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 13:21:36,580 INFO L93 Difference]: Finished difference Result 3809 states and 5867 transitions. [2023-12-25 13:21:36,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 13:21:36,581 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 178.2) internal successors, (891), 5 states have internal predecessors, (891), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 958 [2023-12-25 13:21:36,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 13:21:36,583 INFO L225 Difference]: With dead ends: 3809 [2023-12-25 13:21:36,583 INFO L226 Difference]: Without dead ends: 2667 [2023-12-25 13:21:36,584 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-12-25 13:21:36,584 INFO L413 NwaCegarLoop]: 1367 mSDtfsCounter, 1029 mSDsluCounter, 1379 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1036 SdHoareTripleChecker+Valid, 2746 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 13:21:36,585 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1036 Valid, 2746 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 13:21:36,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2667 states. [2023-12-25 13:21:36,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2667 to 2667. [2023-12-25 13:21:36,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2667 states, 2606 states have (on average 1.5245587106676899) internal successors, (3973), 2606 states have internal predecessors, (3973), 59 states have call successors, (59), 1 states have call predecessors, (59), 1 states have return successors, (59), 59 states have call predecessors, (59), 59 states have call successors, (59) [2023-12-25 13:21:36,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2667 states to 2667 states and 4091 transitions. [2023-12-25 13:21:36,665 INFO L78 Accepts]: Start accepts. Automaton has 2667 states and 4091 transitions. Word has length 958 [2023-12-25 13:21:36,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 13:21:36,666 INFO L495 AbstractCegarLoop]: Abstraction has 2667 states and 4091 transitions. [2023-12-25 13:21:36,666 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 178.2) internal successors, (891), 5 states have internal predecessors, (891), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-25 13:21:36,666 INFO L276 IsEmpty]: Start isEmpty. Operand 2667 states and 4091 transitions. [2023-12-25 13:21:36,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 960 [2023-12-25 13:21:36,673 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 13:21:36,674 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 13:21:36,674 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62 [2023-12-25 13:21:36,674 INFO L420 AbstractCegarLoop]: === Iteration 64 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 13:21:36,674 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 13:21:36,675 INFO L85 PathProgramCache]: Analyzing trace with hash 1686779727, now seen corresponding path program 1 times [2023-12-25 13:21:36,675 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-25 13:21:36,675 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1877625295] [2023-12-25 13:21:36,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 13:21:36,675 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-25 13:21:37,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:38,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2023-12-25 13:21:38,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:38,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2023-12-25 13:21:38,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:38,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2023-12-25 13:21:38,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:38,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2023-12-25 13:21:38,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:38,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2023-12-25 13:21:38,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:38,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2023-12-25 13:21:38,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:38,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2023-12-25 13:21:38,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:38,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 663 [2023-12-25 13:21:38,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:38,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2023-12-25 13:21:38,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:38,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 697 [2023-12-25 13:21:38,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:38,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 714 [2023-12-25 13:21:38,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:38,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 725 [2023-12-25 13:21:38,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:38,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 737 [2023-12-25 13:21:38,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:38,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 750 [2023-12-25 13:21:38,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:38,038 INFO L134 CoverageAnalysis]: Checked inductivity of 641 backedges. 277 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-25 13:21:38,038 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-25 13:21:38,038 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1877625295] [2023-12-25 13:21:38,039 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1877625295] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 13:21:38,040 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 13:21:38,040 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 13:21:38,040 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1512432495] [2023-12-25 13:21:38,040 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 13:21:38,041 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 13:21:38,041 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-25 13:21:38,046 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 13:21:38,046 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-25 13:21:38,046 INFO L87 Difference]: Start difference. First operand 2667 states and 4091 transitions. Second operand has 5 states, 5 states have (on average 178.4) internal successors, (892), 5 states have internal predecessors, (892), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-25 13:21:38,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 13:21:38,516 INFO L93 Difference]: Finished difference Result 3809 states and 5865 transitions. [2023-12-25 13:21:38,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 13:21:38,517 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 178.4) internal successors, (892), 5 states have internal predecessors, (892), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 959 [2023-12-25 13:21:38,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 13:21:38,519 INFO L225 Difference]: With dead ends: 3809 [2023-12-25 13:21:38,519 INFO L226 Difference]: Without dead ends: 2667 [2023-12-25 13:21:38,521 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-12-25 13:21:38,521 INFO L413 NwaCegarLoop]: 1089 mSDtfsCounter, 1768 mSDsluCounter, 1091 mSDsCounter, 0 mSdLazyCounter, 628 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1768 SdHoareTripleChecker+Valid, 2180 SdHoareTripleChecker+Invalid, 629 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 628 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-25 13:21:38,521 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1768 Valid, 2180 Invalid, 629 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 628 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-25 13:21:38,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2667 states. [2023-12-25 13:21:38,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2667 to 2667. [2023-12-25 13:21:38,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2667 states, 2606 states have (on average 1.5241749808135072) internal successors, (3972), 2606 states have internal predecessors, (3972), 59 states have call successors, (59), 1 states have call predecessors, (59), 1 states have return successors, (59), 59 states have call predecessors, (59), 59 states have call successors, (59) [2023-12-25 13:21:38,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2667 states to 2667 states and 4090 transitions. [2023-12-25 13:21:38,603 INFO L78 Accepts]: Start accepts. Automaton has 2667 states and 4090 transitions. Word has length 959 [2023-12-25 13:21:38,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 13:21:38,603 INFO L495 AbstractCegarLoop]: Abstraction has 2667 states and 4090 transitions. [2023-12-25 13:21:38,604 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 178.4) internal successors, (892), 5 states have internal predecessors, (892), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-25 13:21:38,604 INFO L276 IsEmpty]: Start isEmpty. Operand 2667 states and 4090 transitions. [2023-12-25 13:21:38,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 961 [2023-12-25 13:21:38,611 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 13:21:38,612 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 13:21:38,612 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63 [2023-12-25 13:21:38,612 INFO L420 AbstractCegarLoop]: === Iteration 65 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 13:21:38,612 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 13:21:38,612 INFO L85 PathProgramCache]: Analyzing trace with hash 215975515, now seen corresponding path program 1 times [2023-12-25 13:21:38,612 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-25 13:21:38,612 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [695754095] [2023-12-25 13:21:38,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 13:21:38,613 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-25 13:21:40,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:41,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2023-12-25 13:21:41,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:41,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2023-12-25 13:21:41,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:41,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2023-12-25 13:21:41,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:41,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2023-12-25 13:21:41,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:41,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2023-12-25 13:21:41,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:41,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2023-12-25 13:21:41,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:41,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2023-12-25 13:21:41,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:41,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 664 [2023-12-25 13:21:41,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:41,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 679 [2023-12-25 13:21:41,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:41,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 698 [2023-12-25 13:21:41,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:41,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 715 [2023-12-25 13:21:41,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:41,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 726 [2023-12-25 13:21:41,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:41,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 738 [2023-12-25 13:21:41,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:41,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 751 [2023-12-25 13:21:41,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:41,756 INFO L134 CoverageAnalysis]: Checked inductivity of 641 backedges. 277 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-25 13:21:41,756 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-25 13:21:41,756 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [695754095] [2023-12-25 13:21:41,756 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [695754095] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 13:21:41,756 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 13:21:41,756 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 13:21:41,756 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2078508305] [2023-12-25 13:21:41,756 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 13:21:41,757 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 13:21:41,757 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-25 13:21:41,758 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 13:21:41,758 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 13:21:41,758 INFO L87 Difference]: Start difference. First operand 2667 states and 4090 transitions. Second operand has 4 states, 4 states have (on average 223.25) internal successors, (893), 4 states have internal predecessors, (893), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-25 13:21:41,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 13:21:41,893 INFO L93 Difference]: Finished difference Result 3809 states and 5863 transitions. [2023-12-25 13:21:41,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 13:21:41,894 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 223.25) internal successors, (893), 4 states have internal predecessors, (893), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 960 [2023-12-25 13:21:41,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 13:21:41,896 INFO L225 Difference]: With dead ends: 3809 [2023-12-25 13:21:41,896 INFO L226 Difference]: Without dead ends: 2667 [2023-12-25 13:21:41,898 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-25 13:21:41,898 INFO L413 NwaCegarLoop]: 1366 mSDtfsCounter, 939 mSDsluCounter, 1368 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 939 SdHoareTripleChecker+Valid, 2734 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 13:21:41,898 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [939 Valid, 2734 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 13:21:41,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2667 states. [2023-12-25 13:21:41,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2667 to 2667. [2023-12-25 13:21:41,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2667 states, 2606 states have (on average 1.5237912509593246) internal successors, (3971), 2606 states have internal predecessors, (3971), 59 states have call successors, (59), 1 states have call predecessors, (59), 1 states have return successors, (59), 59 states have call predecessors, (59), 59 states have call successors, (59) [2023-12-25 13:21:41,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2667 states to 2667 states and 4089 transitions. [2023-12-25 13:21:41,982 INFO L78 Accepts]: Start accepts. Automaton has 2667 states and 4089 transitions. Word has length 960 [2023-12-25 13:21:41,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 13:21:41,982 INFO L495 AbstractCegarLoop]: Abstraction has 2667 states and 4089 transitions. [2023-12-25 13:21:41,982 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 223.25) internal successors, (893), 4 states have internal predecessors, (893), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-25 13:21:41,983 INFO L276 IsEmpty]: Start isEmpty. Operand 2667 states and 4089 transitions. [2023-12-25 13:21:41,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 961 [2023-12-25 13:21:41,990 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 13:21:41,990 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 13:21:41,991 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64 [2023-12-25 13:21:41,991 INFO L420 AbstractCegarLoop]: === Iteration 66 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 13:21:41,991 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 13:21:41,991 INFO L85 PathProgramCache]: Analyzing trace with hash -1765126759, now seen corresponding path program 1 times [2023-12-25 13:21:41,991 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-25 13:21:41,991 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [203835522] [2023-12-25 13:21:41,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 13:21:41,991 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-25 13:21:43,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:44,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2023-12-25 13:21:44,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:44,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2023-12-25 13:21:44,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:44,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2023-12-25 13:21:44,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:44,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2023-12-25 13:21:44,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:44,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2023-12-25 13:21:44,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:44,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2023-12-25 13:21:44,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:44,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2023-12-25 13:21:44,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:44,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 664 [2023-12-25 13:21:44,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:44,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 679 [2023-12-25 13:21:44,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:44,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 698 [2023-12-25 13:21:44,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:44,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 715 [2023-12-25 13:21:44,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:44,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 726 [2023-12-25 13:21:44,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:44,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 738 [2023-12-25 13:21:44,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:44,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 751 [2023-12-25 13:21:44,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:44,906 INFO L134 CoverageAnalysis]: Checked inductivity of 641 backedges. 277 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-25 13:21:44,906 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-25 13:21:44,906 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [203835522] [2023-12-25 13:21:44,906 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [203835522] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 13:21:44,906 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 13:21:44,906 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 13:21:44,906 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [556605666] [2023-12-25 13:21:44,906 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 13:21:44,907 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 13:21:44,907 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-25 13:21:44,908 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 13:21:44,908 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 13:21:44,908 INFO L87 Difference]: Start difference. First operand 2667 states and 4089 transitions. Second operand has 4 states, 4 states have (on average 223.25) internal successors, (893), 4 states have internal predecessors, (893), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-25 13:21:45,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 13:21:45,041 INFO L93 Difference]: Finished difference Result 3809 states and 5861 transitions. [2023-12-25 13:21:45,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 13:21:45,042 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 223.25) internal successors, (893), 4 states have internal predecessors, (893), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 960 [2023-12-25 13:21:45,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 13:21:45,045 INFO L225 Difference]: With dead ends: 3809 [2023-12-25 13:21:45,045 INFO L226 Difference]: Without dead ends: 2667 [2023-12-25 13:21:45,046 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-25 13:21:45,046 INFO L413 NwaCegarLoop]: 1366 mSDtfsCounter, 839 mSDsluCounter, 1368 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 839 SdHoareTripleChecker+Valid, 2734 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 13:21:45,046 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [839 Valid, 2734 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 13:21:45,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2667 states. [2023-12-25 13:21:45,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2667 to 2667. [2023-12-25 13:21:45,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2667 states, 2606 states have (on average 1.5234075211051419) internal successors, (3970), 2606 states have internal predecessors, (3970), 59 states have call successors, (59), 1 states have call predecessors, (59), 1 states have return successors, (59), 59 states have call predecessors, (59), 59 states have call successors, (59) [2023-12-25 13:21:45,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2667 states to 2667 states and 4088 transitions. [2023-12-25 13:21:45,129 INFO L78 Accepts]: Start accepts. Automaton has 2667 states and 4088 transitions. Word has length 960 [2023-12-25 13:21:45,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 13:21:45,129 INFO L495 AbstractCegarLoop]: Abstraction has 2667 states and 4088 transitions. [2023-12-25 13:21:45,129 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 223.25) internal successors, (893), 4 states have internal predecessors, (893), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-25 13:21:45,129 INFO L276 IsEmpty]: Start isEmpty. Operand 2667 states and 4088 transitions. [2023-12-25 13:21:45,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 961 [2023-12-25 13:21:45,137 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 13:21:45,137 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 13:21:45,137 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65 [2023-12-25 13:21:45,138 INFO L420 AbstractCegarLoop]: === Iteration 67 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 13:21:45,138 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 13:21:45,138 INFO L85 PathProgramCache]: Analyzing trace with hash 1995740955, now seen corresponding path program 1 times [2023-12-25 13:21:45,138 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-25 13:21:45,138 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1507402625] [2023-12-25 13:21:45,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 13:21:45,138 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-25 13:21:46,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:47,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2023-12-25 13:21:47,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:48,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2023-12-25 13:21:48,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:48,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2023-12-25 13:21:48,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:48,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2023-12-25 13:21:48,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:48,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2023-12-25 13:21:48,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:48,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2023-12-25 13:21:48,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:48,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2023-12-25 13:21:48,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:48,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 664 [2023-12-25 13:21:48,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:48,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 679 [2023-12-25 13:21:48,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:48,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 698 [2023-12-25 13:21:48,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:48,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 715 [2023-12-25 13:21:48,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:48,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 726 [2023-12-25 13:21:48,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:48,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 738 [2023-12-25 13:21:48,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:48,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 751 [2023-12-25 13:21:48,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:48,014 INFO L134 CoverageAnalysis]: Checked inductivity of 641 backedges. 277 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-25 13:21:48,014 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-25 13:21:48,014 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1507402625] [2023-12-25 13:21:48,014 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1507402625] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 13:21:48,014 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 13:21:48,014 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 13:21:48,014 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2065883275] [2023-12-25 13:21:48,014 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 13:21:48,015 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 13:21:48,015 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-25 13:21:48,015 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 13:21:48,016 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-25 13:21:48,016 INFO L87 Difference]: Start difference. First operand 2667 states and 4088 transitions. Second operand has 5 states, 5 states have (on average 178.6) internal successors, (893), 5 states have internal predecessors, (893), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-25 13:21:48,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 13:21:48,198 INFO L93 Difference]: Finished difference Result 3809 states and 5859 transitions. [2023-12-25 13:21:48,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 13:21:48,199 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 178.6) internal successors, (893), 5 states have internal predecessors, (893), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 960 [2023-12-25 13:21:48,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 13:21:48,201 INFO L225 Difference]: With dead ends: 3809 [2023-12-25 13:21:48,201 INFO L226 Difference]: Without dead ends: 2667 [2023-12-25 13:21:48,202 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-12-25 13:21:48,203 INFO L413 NwaCegarLoop]: 1344 mSDtfsCounter, 1190 mSDsluCounter, 1356 mSDsCounter, 0 mSdLazyCounter, 113 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1190 SdHoareTripleChecker+Valid, 2700 SdHoareTripleChecker+Invalid, 113 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 113 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 13:21:48,203 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1190 Valid, 2700 Invalid, 113 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 113 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 13:21:48,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2667 states. [2023-12-25 13:21:48,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2667 to 2667. [2023-12-25 13:21:48,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2667 states, 2606 states have (on average 1.5230237912509594) internal successors, (3969), 2606 states have internal predecessors, (3969), 59 states have call successors, (59), 1 states have call predecessors, (59), 1 states have return successors, (59), 59 states have call predecessors, (59), 59 states have call successors, (59) [2023-12-25 13:21:48,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2667 states to 2667 states and 4087 transitions. [2023-12-25 13:21:48,288 INFO L78 Accepts]: Start accepts. Automaton has 2667 states and 4087 transitions. Word has length 960 [2023-12-25 13:21:48,288 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 13:21:48,289 INFO L495 AbstractCegarLoop]: Abstraction has 2667 states and 4087 transitions. [2023-12-25 13:21:48,289 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 178.6) internal successors, (893), 5 states have internal predecessors, (893), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-25 13:21:48,289 INFO L276 IsEmpty]: Start isEmpty. Operand 2667 states and 4087 transitions. [2023-12-25 13:21:48,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 961 [2023-12-25 13:21:48,296 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 13:21:48,297 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 13:21:48,297 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable66 [2023-12-25 13:21:48,297 INFO L420 AbstractCegarLoop]: === Iteration 68 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 13:21:48,297 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 13:21:48,297 INFO L85 PathProgramCache]: Analyzing trace with hash 2044212569, now seen corresponding path program 1 times [2023-12-25 13:21:48,297 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-25 13:21:48,297 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1099588717] [2023-12-25 13:21:48,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 13:21:48,298 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-25 13:21:50,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:51,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2023-12-25 13:21:51,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:51,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2023-12-25 13:21:51,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:51,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2023-12-25 13:21:51,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:51,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2023-12-25 13:21:51,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:51,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2023-12-25 13:21:51,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:51,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2023-12-25 13:21:51,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:51,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2023-12-25 13:21:51,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:51,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 664 [2023-12-25 13:21:51,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:51,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 679 [2023-12-25 13:21:51,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:51,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 698 [2023-12-25 13:21:51,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:51,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 715 [2023-12-25 13:21:51,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:51,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 726 [2023-12-25 13:21:51,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:51,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 738 [2023-12-25 13:21:51,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:51,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 751 [2023-12-25 13:21:51,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:51,259 INFO L134 CoverageAnalysis]: Checked inductivity of 641 backedges. 277 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-25 13:21:51,259 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-25 13:21:51,259 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1099588717] [2023-12-25 13:21:51,259 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1099588717] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 13:21:51,259 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 13:21:51,259 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 13:21:51,259 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [724167257] [2023-12-25 13:21:51,259 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 13:21:51,260 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 13:21:51,260 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-25 13:21:51,261 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 13:21:51,261 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-25 13:21:51,261 INFO L87 Difference]: Start difference. First operand 2667 states and 4087 transitions. Second operand has 5 states, 5 states have (on average 178.6) internal successors, (893), 5 states have internal predecessors, (893), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-25 13:21:51,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 13:21:51,429 INFO L93 Difference]: Finished difference Result 3809 states and 5857 transitions. [2023-12-25 13:21:51,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 13:21:51,432 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 178.6) internal successors, (893), 5 states have internal predecessors, (893), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 960 [2023-12-25 13:21:51,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 13:21:51,434 INFO L225 Difference]: With dead ends: 3809 [2023-12-25 13:21:51,434 INFO L226 Difference]: Without dead ends: 2667 [2023-12-25 13:21:51,435 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-12-25 13:21:51,436 INFO L413 NwaCegarLoop]: 1344 mSDtfsCounter, 1189 mSDsluCounter, 1356 mSDsCounter, 0 mSdLazyCounter, 111 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1189 SdHoareTripleChecker+Valid, 2700 SdHoareTripleChecker+Invalid, 111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 13:21:51,436 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1189 Valid, 2700 Invalid, 111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 111 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 13:21:51,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2667 states. [2023-12-25 13:21:51,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2667 to 2667. [2023-12-25 13:21:51,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2667 states, 2606 states have (on average 1.5226400613967768) internal successors, (3968), 2606 states have internal predecessors, (3968), 59 states have call successors, (59), 1 states have call predecessors, (59), 1 states have return successors, (59), 59 states have call predecessors, (59), 59 states have call successors, (59) [2023-12-25 13:21:51,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2667 states to 2667 states and 4086 transitions. [2023-12-25 13:21:51,517 INFO L78 Accepts]: Start accepts. Automaton has 2667 states and 4086 transitions. Word has length 960 [2023-12-25 13:21:51,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 13:21:51,518 INFO L495 AbstractCegarLoop]: Abstraction has 2667 states and 4086 transitions. [2023-12-25 13:21:51,518 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 178.6) internal successors, (893), 5 states have internal predecessors, (893), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-25 13:21:51,518 INFO L276 IsEmpty]: Start isEmpty. Operand 2667 states and 4086 transitions. [2023-12-25 13:21:51,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 961 [2023-12-25 13:21:51,525 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 13:21:51,526 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 13:21:51,526 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable67 [2023-12-25 13:21:51,526 INFO L420 AbstractCegarLoop]: === Iteration 69 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 13:21:51,526 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 13:21:51,526 INFO L85 PathProgramCache]: Analyzing trace with hash -1365049125, now seen corresponding path program 1 times [2023-12-25 13:21:51,526 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-25 13:21:51,526 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [674765413] [2023-12-25 13:21:51,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 13:21:51,526 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-25 13:21:53,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:54,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2023-12-25 13:21:54,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:54,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2023-12-25 13:21:54,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:54,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2023-12-25 13:21:54,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:54,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2023-12-25 13:21:54,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:54,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2023-12-25 13:21:54,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:54,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2023-12-25 13:21:54,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:54,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2023-12-25 13:21:54,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:54,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 664 [2023-12-25 13:21:54,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:54,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 679 [2023-12-25 13:21:54,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:54,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 698 [2023-12-25 13:21:54,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:54,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 715 [2023-12-25 13:21:54,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:54,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 726 [2023-12-25 13:21:54,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:54,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 738 [2023-12-25 13:21:54,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:54,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 751 [2023-12-25 13:21:54,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:54,470 INFO L134 CoverageAnalysis]: Checked inductivity of 641 backedges. 277 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-25 13:21:54,470 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-25 13:21:54,470 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [674765413] [2023-12-25 13:21:54,470 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [674765413] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 13:21:54,470 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 13:21:54,470 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 13:21:54,470 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [191194600] [2023-12-25 13:21:54,471 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 13:21:54,471 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 13:21:54,471 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-25 13:21:54,472 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 13:21:54,472 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-25 13:21:54,472 INFO L87 Difference]: Start difference. First operand 2667 states and 4086 transitions. Second operand has 5 states, 5 states have (on average 178.6) internal successors, (893), 5 states have internal predecessors, (893), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-25 13:21:54,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 13:21:54,638 INFO L93 Difference]: Finished difference Result 3809 states and 5855 transitions. [2023-12-25 13:21:54,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 13:21:54,639 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 178.6) internal successors, (893), 5 states have internal predecessors, (893), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 960 [2023-12-25 13:21:54,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 13:21:54,641 INFO L225 Difference]: With dead ends: 3809 [2023-12-25 13:21:54,641 INFO L226 Difference]: Without dead ends: 2667 [2023-12-25 13:21:54,642 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-12-25 13:21:54,643 INFO L413 NwaCegarLoop]: 1344 mSDtfsCounter, 2136 mSDsluCounter, 1346 mSDsCounter, 0 mSdLazyCounter, 109 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2136 SdHoareTripleChecker+Valid, 2690 SdHoareTripleChecker+Invalid, 109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 109 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 13:21:54,643 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2136 Valid, 2690 Invalid, 109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 109 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 13:21:54,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2667 states. [2023-12-25 13:21:54,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2667 to 2667. [2023-12-25 13:21:54,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2667 states, 2606 states have (on average 1.522256331542594) internal successors, (3967), 2606 states have internal predecessors, (3967), 59 states have call successors, (59), 1 states have call predecessors, (59), 1 states have return successors, (59), 59 states have call predecessors, (59), 59 states have call successors, (59) [2023-12-25 13:21:54,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2667 states to 2667 states and 4085 transitions. [2023-12-25 13:21:54,725 INFO L78 Accepts]: Start accepts. Automaton has 2667 states and 4085 transitions. Word has length 960 [2023-12-25 13:21:54,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 13:21:54,725 INFO L495 AbstractCegarLoop]: Abstraction has 2667 states and 4085 transitions. [2023-12-25 13:21:54,726 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 178.6) internal successors, (893), 5 states have internal predecessors, (893), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-25 13:21:54,726 INFO L276 IsEmpty]: Start isEmpty. Operand 2667 states and 4085 transitions. [2023-12-25 13:21:54,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 961 [2023-12-25 13:21:54,733 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 13:21:54,734 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 13:21:54,734 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable68 [2023-12-25 13:21:54,734 INFO L420 AbstractCegarLoop]: === Iteration 70 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 13:21:54,734 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 13:21:54,734 INFO L85 PathProgramCache]: Analyzing trace with hash -372685927, now seen corresponding path program 1 times [2023-12-25 13:21:54,734 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-25 13:21:54,734 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1668865184] [2023-12-25 13:21:54,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 13:21:54,735 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-25 13:21:56,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:57,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2023-12-25 13:21:57,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:57,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2023-12-25 13:21:57,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:57,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2023-12-25 13:21:57,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:57,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2023-12-25 13:21:57,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:57,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2023-12-25 13:21:57,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:57,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2023-12-25 13:21:57,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:57,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2023-12-25 13:21:57,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:57,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 664 [2023-12-25 13:21:57,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:57,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 679 [2023-12-25 13:21:57,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:57,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 698 [2023-12-25 13:21:57,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:57,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 715 [2023-12-25 13:21:57,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:57,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 726 [2023-12-25 13:21:57,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:57,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 738 [2023-12-25 13:21:57,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:57,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 751 [2023-12-25 13:21:57,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:57,656 INFO L134 CoverageAnalysis]: Checked inductivity of 641 backedges. 277 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-25 13:21:57,656 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-25 13:21:57,656 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1668865184] [2023-12-25 13:21:57,656 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1668865184] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 13:21:57,656 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 13:21:57,656 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 13:21:57,656 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1407678405] [2023-12-25 13:21:57,656 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 13:21:57,657 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 13:21:57,657 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-25 13:21:57,658 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 13:21:57,658 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-25 13:21:57,658 INFO L87 Difference]: Start difference. First operand 2667 states and 4085 transitions. Second operand has 5 states, 5 states have (on average 178.6) internal successors, (893), 5 states have internal predecessors, (893), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-25 13:21:57,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 13:21:57,834 INFO L93 Difference]: Finished difference Result 3809 states and 5853 transitions. [2023-12-25 13:21:57,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 13:21:57,835 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 178.6) internal successors, (893), 5 states have internal predecessors, (893), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 960 [2023-12-25 13:21:57,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 13:21:57,837 INFO L225 Difference]: With dead ends: 3809 [2023-12-25 13:21:57,837 INFO L226 Difference]: Without dead ends: 2667 [2023-12-25 13:21:57,838 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-12-25 13:21:57,839 INFO L413 NwaCegarLoop]: 1344 mSDtfsCounter, 2049 mSDsluCounter, 1346 mSDsCounter, 0 mSdLazyCounter, 107 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2049 SdHoareTripleChecker+Valid, 2690 SdHoareTripleChecker+Invalid, 107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 107 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 13:21:57,839 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2049 Valid, 2690 Invalid, 107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 107 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 13:21:57,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2667 states. [2023-12-25 13:21:57,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2667 to 2667. [2023-12-25 13:21:57,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2667 states, 2606 states have (on average 1.5218726016884114) internal successors, (3966), 2606 states have internal predecessors, (3966), 59 states have call successors, (59), 1 states have call predecessors, (59), 1 states have return successors, (59), 59 states have call predecessors, (59), 59 states have call successors, (59) [2023-12-25 13:21:57,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2667 states to 2667 states and 4084 transitions. [2023-12-25 13:21:57,923 INFO L78 Accepts]: Start accepts. Automaton has 2667 states and 4084 transitions. Word has length 960 [2023-12-25 13:21:57,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 13:21:57,923 INFO L495 AbstractCegarLoop]: Abstraction has 2667 states and 4084 transitions. [2023-12-25 13:21:57,923 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 178.6) internal successors, (893), 5 states have internal predecessors, (893), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-25 13:21:57,923 INFO L276 IsEmpty]: Start isEmpty. Operand 2667 states and 4084 transitions. [2023-12-25 13:21:57,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 961 [2023-12-25 13:21:57,931 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 13:21:57,931 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 13:21:57,931 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable69 [2023-12-25 13:21:57,931 INFO L420 AbstractCegarLoop]: === Iteration 71 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 13:21:57,931 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 13:21:57,932 INFO L85 PathProgramCache]: Analyzing trace with hash 162403867, now seen corresponding path program 1 times [2023-12-25 13:21:57,932 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-25 13:21:57,932 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [966009923] [2023-12-25 13:21:57,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 13:21:57,932 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-25 13:21:59,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:22:00,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2023-12-25 13:22:00,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:22:00,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2023-12-25 13:22:00,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:22:00,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2023-12-25 13:22:00,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:22:00,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2023-12-25 13:22:00,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:22:00,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2023-12-25 13:22:00,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:22:00,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2023-12-25 13:22:00,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:22:00,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2023-12-25 13:22:00,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:22:00,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 664 [2023-12-25 13:22:00,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:22:00,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 679 [2023-12-25 13:22:00,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:22:00,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 698 [2023-12-25 13:22:00,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:22:00,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 715 [2023-12-25 13:22:00,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:22:00,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 726 [2023-12-25 13:22:00,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:22:00,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 738 [2023-12-25 13:22:00,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:22:00,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 751 [2023-12-25 13:22:00,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:22:00,898 INFO L134 CoverageAnalysis]: Checked inductivity of 641 backedges. 277 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-25 13:22:00,898 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-25 13:22:00,898 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [966009923] [2023-12-25 13:22:00,898 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [966009923] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 13:22:00,898 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 13:22:00,898 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 13:22:00,898 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [490797008] [2023-12-25 13:22:00,899 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 13:22:00,899 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 13:22:00,899 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-25 13:22:00,900 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 13:22:00,900 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 13:22:00,900 INFO L87 Difference]: Start difference. First operand 2667 states and 4084 transitions. Second operand has 4 states, 4 states have (on average 223.25) internal successors, (893), 4 states have internal predecessors, (893), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-25 13:22:01,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 13:22:01,066 INFO L93 Difference]: Finished difference Result 3809 states and 5851 transitions. [2023-12-25 13:22:01,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 13:22:01,067 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 223.25) internal successors, (893), 4 states have internal predecessors, (893), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 960 [2023-12-25 13:22:01,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 13:22:01,069 INFO L225 Difference]: With dead ends: 3809 [2023-12-25 13:22:01,070 INFO L226 Difference]: Without dead ends: 2667 [2023-12-25 13:22:01,071 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-25 13:22:01,071 INFO L413 NwaCegarLoop]: 1344 mSDtfsCounter, 848 mSDsluCounter, 1346 mSDsCounter, 0 mSdLazyCounter, 105 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 848 SdHoareTripleChecker+Valid, 2690 SdHoareTripleChecker+Invalid, 105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 13:22:01,071 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [848 Valid, 2690 Invalid, 105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 105 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 13:22:01,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2667 states. [2023-12-25 13:22:01,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2667 to 2667. [2023-12-25 13:22:01,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2667 states, 2606 states have (on average 1.5214888718342288) internal successors, (3965), 2606 states have internal predecessors, (3965), 59 states have call successors, (59), 1 states have call predecessors, (59), 1 states have return successors, (59), 59 states have call predecessors, (59), 59 states have call successors, (59) [2023-12-25 13:22:01,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2667 states to 2667 states and 4083 transitions. [2023-12-25 13:22:01,158 INFO L78 Accepts]: Start accepts. Automaton has 2667 states and 4083 transitions. Word has length 960 [2023-12-25 13:22:01,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 13:22:01,158 INFO L495 AbstractCegarLoop]: Abstraction has 2667 states and 4083 transitions. [2023-12-25 13:22:01,158 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 223.25) internal successors, (893), 4 states have internal predecessors, (893), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-25 13:22:01,158 INFO L276 IsEmpty]: Start isEmpty. Operand 2667 states and 4083 transitions. [2023-12-25 13:22:01,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 961 [2023-12-25 13:22:01,166 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 13:22:01,166 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 13:22:01,166 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70 [2023-12-25 13:22:01,167 INFO L420 AbstractCegarLoop]: === Iteration 72 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 13:22:01,167 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 13:22:01,167 INFO L85 PathProgramCache]: Analyzing trace with hash -1961847779, now seen corresponding path program 1 times [2023-12-25 13:22:01,167 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-25 13:22:01,167 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1675760001] [2023-12-25 13:22:01,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 13:22:01,167 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-25 13:22:07,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:22:08,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2023-12-25 13:22:08,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:22:08,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2023-12-25 13:22:08,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:22:08,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2023-12-25 13:22:08,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:22:08,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2023-12-25 13:22:08,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:22:08,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2023-12-25 13:22:08,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:22:08,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2023-12-25 13:22:08,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:22:08,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2023-12-25 13:22:08,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:22:08,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 664 [2023-12-25 13:22:08,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:22:08,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 679 [2023-12-25 13:22:08,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:22:08,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 698 [2023-12-25 13:22:08,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:22:08,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 715 [2023-12-25 13:22:08,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:22:08,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 726 [2023-12-25 13:22:08,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:22:08,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 738 [2023-12-25 13:22:08,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:22:08,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 751 [2023-12-25 13:22:08,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:22:08,198 INFO L134 CoverageAnalysis]: Checked inductivity of 641 backedges. 277 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-25 13:22:08,198 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-25 13:22:08,198 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1675760001] [2023-12-25 13:22:08,198 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1675760001] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 13:22:08,198 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 13:22:08,198 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-25 13:22:08,198 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2041079395] [2023-12-25 13:22:08,199 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 13:22:08,199 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-25 13:22:08,199 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-25 13:22:08,200 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-25 13:22:08,200 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-25 13:22:08,200 INFO L87 Difference]: Start difference. First operand 2667 states and 4083 transitions. Second operand has 6 states, 6 states have (on average 148.83333333333334) internal successors, (893), 6 states have internal predecessors, (893), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-25 13:22:08,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 13:22:08,878 INFO L93 Difference]: Finished difference Result 6245 states and 9514 transitions. [2023-12-25 13:22:08,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-25 13:22:08,878 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 148.83333333333334) internal successors, (893), 6 states have internal predecessors, (893), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 960 [2023-12-25 13:22:08,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 13:22:08,882 INFO L225 Difference]: With dead ends: 6245 [2023-12-25 13:22:08,882 INFO L226 Difference]: Without dead ends: 5103 [2023-12-25 13:22:08,884 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-12-25 13:22:08,884 INFO L413 NwaCegarLoop]: 1161 mSDtfsCounter, 1559 mSDsluCounter, 3836 mSDsCounter, 0 mSdLazyCounter, 950 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1566 SdHoareTripleChecker+Valid, 4997 SdHoareTripleChecker+Invalid, 967 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 950 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-25 13:22:08,884 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1566 Valid, 4997 Invalid, 967 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 950 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-25 13:22:08,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5103 states. [2023-12-25 13:22:09,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5103 to 4369. [2023-12-25 13:22:09,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4369 states, 4264 states have (on average 1.5159474671669793) internal successors, (6464), 4264 states have internal predecessors, (6464), 103 states have call successors, (103), 1 states have call predecessors, (103), 1 states have return successors, (103), 103 states have call predecessors, (103), 103 states have call successors, (103) [2023-12-25 13:22:09,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4369 states to 4369 states and 6670 transitions. [2023-12-25 13:22:09,047 INFO L78 Accepts]: Start accepts. Automaton has 4369 states and 6670 transitions. Word has length 960 [2023-12-25 13:22:09,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 13:22:09,047 INFO L495 AbstractCegarLoop]: Abstraction has 4369 states and 6670 transitions. [2023-12-25 13:22:09,047 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 148.83333333333334) internal successors, (893), 6 states have internal predecessors, (893), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-25 13:22:09,047 INFO L276 IsEmpty]: Start isEmpty. Operand 4369 states and 6670 transitions. [2023-12-25 13:22:09,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 962 [2023-12-25 13:22:09,073 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 13:22:09,073 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 13:22:09,073 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable71 [2023-12-25 13:22:09,073 INFO L420 AbstractCegarLoop]: === Iteration 73 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 13:22:09,073 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 13:22:09,074 INFO L85 PathProgramCache]: Analyzing trace with hash 1986281681, now seen corresponding path program 1 times [2023-12-25 13:22:09,074 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-25 13:22:09,074 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [897159213] [2023-12-25 13:22:09,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 13:22:09,074 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-25 13:22:11,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:22:14,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2023-12-25 13:22:14,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:22:14,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2023-12-25 13:22:14,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:22:14,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2023-12-25 13:22:14,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:22:14,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2023-12-25 13:22:14,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:22:14,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2023-12-25 13:22:14,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:22:14,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2023-12-25 13:22:14,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:22:14,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2023-12-25 13:22:14,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:22:14,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 665 [2023-12-25 13:22:14,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:22:14,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 680 [2023-12-25 13:22:14,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:22:14,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 699 [2023-12-25 13:22:14,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:22:14,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 716 [2023-12-25 13:22:14,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:22:14,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 727 [2023-12-25 13:22:14,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:22:14,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 739 [2023-12-25 13:22:14,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:22:14,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 752 [2023-12-25 13:22:14,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:22:14,055 INFO L134 CoverageAnalysis]: Checked inductivity of 641 backedges. 277 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-25 13:22:14,055 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-25 13:22:14,055 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [897159213] [2023-12-25 13:22:14,055 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [897159213] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 13:22:14,055 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 13:22:14,055 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-25 13:22:14,055 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1432193850] [2023-12-25 13:22:14,056 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 13:22:14,056 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-25 13:22:14,056 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-25 13:22:14,057 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-25 13:22:14,057 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-12-25 13:22:14,057 INFO L87 Difference]: Start difference. First operand 4369 states and 6670 transitions. Second operand has 7 states, 7 states have (on average 127.71428571428571) internal successors, (894), 7 states have internal predecessors, (894), 3 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2023-12-25 13:22:15,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 13:22:15,411 INFO L93 Difference]: Finished difference Result 6681 states and 10251 transitions. [2023-12-25 13:22:15,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-25 13:22:15,412 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 127.71428571428571) internal successors, (894), 7 states have internal predecessors, (894), 3 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 961 [2023-12-25 13:22:15,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 13:22:15,417 INFO L225 Difference]: With dead ends: 6681 [2023-12-25 13:22:15,418 INFO L226 Difference]: Without dead ends: 5539 [2023-12-25 13:22:15,420 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2023-12-25 13:22:15,420 INFO L413 NwaCegarLoop]: 1965 mSDtfsCounter, 3187 mSDsluCounter, 6052 mSDsCounter, 0 mSdLazyCounter, 2422 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3187 SdHoareTripleChecker+Valid, 8017 SdHoareTripleChecker+Invalid, 2435 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 2422 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-12-25 13:22:15,420 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3187 Valid, 8017 Invalid, 2435 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 2422 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-12-25 13:22:15,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5539 states. [2023-12-25 13:22:15,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5539 to 4422. [2023-12-25 13:22:15,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4422 states, 4315 states have (on average 1.515874855156431) internal successors, (6541), 4315 states have internal predecessors, (6541), 105 states have call successors, (105), 1 states have call predecessors, (105), 1 states have return successors, (105), 105 states have call predecessors, (105), 105 states have call successors, (105) [2023-12-25 13:22:15,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4422 states to 4422 states and 6751 transitions. [2023-12-25 13:22:15,614 INFO L78 Accepts]: Start accepts. Automaton has 4422 states and 6751 transitions. Word has length 961 [2023-12-25 13:22:15,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 13:22:15,615 INFO L495 AbstractCegarLoop]: Abstraction has 4422 states and 6751 transitions. [2023-12-25 13:22:15,615 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 127.71428571428571) internal successors, (894), 7 states have internal predecessors, (894), 3 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2023-12-25 13:22:15,615 INFO L276 IsEmpty]: Start isEmpty. Operand 4422 states and 6751 transitions. [2023-12-25 13:22:15,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 963 [2023-12-25 13:22:15,624 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 13:22:15,625 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 13:22:15,625 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable72 [2023-12-25 13:22:15,625 INFO L420 AbstractCegarLoop]: === Iteration 74 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 13:22:15,625 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 13:22:15,625 INFO L85 PathProgramCache]: Analyzing trace with hash 1518395755, now seen corresponding path program 1 times [2023-12-25 13:22:15,626 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-25 13:22:15,626 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [6029681] [2023-12-25 13:22:15,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 13:22:15,626 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-25 13:22:21,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:22:22,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2023-12-25 13:22:22,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:22:22,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2023-12-25 13:22:22,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:22:22,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2023-12-25 13:22:22,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:22:22,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2023-12-25 13:22:22,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:22:22,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2023-12-25 13:22:22,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:22:22,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2023-12-25 13:22:22,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:22:22,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2023-12-25 13:22:22,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:22:22,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 665 [2023-12-25 13:22:22,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:22:22,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 680 [2023-12-25 13:22:22,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:22:22,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 700 [2023-12-25 13:22:22,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:22:22,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 717 [2023-12-25 13:22:22,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:22:22,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 728 [2023-12-25 13:22:22,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:22:22,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 740 [2023-12-25 13:22:22,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:22:22,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 753 [2023-12-25 13:22:22,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:22:22,823 INFO L134 CoverageAnalysis]: Checked inductivity of 642 backedges. 278 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-25 13:22:22,823 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-25 13:22:22,823 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [6029681] [2023-12-25 13:22:22,823 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [6029681] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 13:22:22,823 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 13:22:22,824 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-25 13:22:22,824 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1947563902] [2023-12-25 13:22:22,824 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 13:22:22,824 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-25 13:22:22,824 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-25 13:22:22,825 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-25 13:22:22,825 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-12-25 13:22:22,825 INFO L87 Difference]: Start difference. First operand 4422 states and 6751 transitions. Second operand has 6 states, 6 states have (on average 149.16666666666666) internal successors, (895), 6 states have internal predecessors, (895), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-25 13:22:23,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 13:22:23,722 INFO L93 Difference]: Finished difference Result 5713 states and 8757 transitions. [2023-12-25 13:22:23,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-25 13:22:23,723 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 149.16666666666666) internal successors, (895), 6 states have internal predecessors, (895), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 962 [2023-12-25 13:22:23,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 13:22:23,727 INFO L225 Difference]: With dead ends: 5713 [2023-12-25 13:22:23,728 INFO L226 Difference]: Without dead ends: 4518 [2023-12-25 13:22:23,729 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-12-25 13:22:23,729 INFO L413 NwaCegarLoop]: 1089 mSDtfsCounter, 2704 mSDsluCounter, 3243 mSDsCounter, 0 mSdLazyCounter, 1243 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2711 SdHoareTripleChecker+Valid, 4332 SdHoareTripleChecker+Invalid, 1243 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1243 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-25 13:22:23,729 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2711 Valid, 4332 Invalid, 1243 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1243 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-25 13:22:23,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4518 states. [2023-12-25 13:22:23,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4518 to 4423. [2023-12-25 13:22:23,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4423 states, 4316 states have (on average 1.515755329008341) internal successors, (6542), 4316 states have internal predecessors, (6542), 105 states have call successors, (105), 1 states have call predecessors, (105), 1 states have return successors, (105), 105 states have call predecessors, (105), 105 states have call successors, (105) [2023-12-25 13:22:23,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4423 states to 4423 states and 6752 transitions. [2023-12-25 13:22:23,878 INFO L78 Accepts]: Start accepts. Automaton has 4423 states and 6752 transitions. Word has length 962 [2023-12-25 13:22:23,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 13:22:23,878 INFO L495 AbstractCegarLoop]: Abstraction has 4423 states and 6752 transitions. [2023-12-25 13:22:23,878 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 149.16666666666666) internal successors, (895), 6 states have internal predecessors, (895), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-25 13:22:23,878 INFO L276 IsEmpty]: Start isEmpty. Operand 4423 states and 6752 transitions. [2023-12-25 13:22:23,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 963 [2023-12-25 13:22:23,888 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 13:22:23,888 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 13:22:23,888 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable73 [2023-12-25 13:22:23,888 INFO L420 AbstractCegarLoop]: === Iteration 75 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 13:22:23,889 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 13:22:23,889 INFO L85 PathProgramCache]: Analyzing trace with hash 388132589, now seen corresponding path program 1 times [2023-12-25 13:22:23,889 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-25 13:22:23,889 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1707074544] [2023-12-25 13:22:23,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 13:22:23,889 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-25 13:22:31,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:22:34,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2023-12-25 13:22:34,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:22:34,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2023-12-25 13:22:34,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:22:34,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2023-12-25 13:22:34,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:22:34,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2023-12-25 13:22:34,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:22:34,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2023-12-25 13:22:34,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:22:34,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2023-12-25 13:22:34,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:22:34,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2023-12-25 13:22:34,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:22:34,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 665 [2023-12-25 13:22:34,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:22:34,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 680 [2023-12-25 13:22:34,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:22:34,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 700 [2023-12-25 13:22:34,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:22:34,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 717 [2023-12-25 13:22:34,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:22:34,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 728 [2023-12-25 13:22:34,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:22:34,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 740 [2023-12-25 13:22:34,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:22:34,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 753 [2023-12-25 13:22:34,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:22:34,753 INFO L134 CoverageAnalysis]: Checked inductivity of 642 backedges. 277 proven. 1 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-25 13:22:34,754 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-25 13:22:34,780 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1707074544] [2023-12-25 13:22:34,780 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1707074544] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-25 13:22:34,780 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1941874288] [2023-12-25 13:22:34,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 13:22:34,781 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-25 13:22:34,781 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-25 13:22:34,785 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-25 13:22:34,795 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-25 13:22:35,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:22:35,925 INFO L262 TraceCheckSpWp]: Trace formula consists of 5872 conjuncts, 17 conjunts are in the unsatisfiable core [2023-12-25 13:22:35,960 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 13:22:36,126 INFO L134 CoverageAnalysis]: Checked inductivity of 642 backedges. 123 proven. 0 refuted. 0 times theorem prover too weak. 519 trivial. 0 not checked. [2023-12-25 13:22:36,126 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 13:22:36,126 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1941874288] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 13:22:36,126 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-25 13:22:36,126 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [9] total 15 [2023-12-25 13:22:36,126 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [507646078] [2023-12-25 13:22:36,127 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 13:22:36,128 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-25 13:22:36,128 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-25 13:22:36,129 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-25 13:22:36,129 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=176, Unknown=0, NotChecked=0, Total=210 [2023-12-25 13:22:36,129 INFO L87 Difference]: Start difference. First operand 4423 states and 6752 transitions. Second operand has 8 states, 7 states have (on average 93.85714285714286) internal successors, (657), 8 states have internal predecessors, (657), 3 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (9), 2 states have call predecessors, (9), 3 states have call successors, (9) [2023-12-25 13:22:36,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 13:22:36,389 INFO L93 Difference]: Finished difference Result 8411 states and 12783 transitions. [2023-12-25 13:22:36,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-25 13:22:36,389 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 93.85714285714286) internal successors, (657), 8 states have internal predecessors, (657), 3 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (9), 2 states have call predecessors, (9), 3 states have call successors, (9) Word has length 962 [2023-12-25 13:22:36,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 13:22:36,393 INFO L225 Difference]: With dead ends: 8411 [2023-12-25 13:22:36,393 INFO L226 Difference]: Without dead ends: 4405 [2023-12-25 13:22:36,396 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1002 GetRequests, 985 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=50, Invalid=292, Unknown=0, NotChecked=0, Total=342 [2023-12-25 13:22:36,397 INFO L413 NwaCegarLoop]: 1374 mSDtfsCounter, 1285 mSDsluCounter, 6857 mSDsCounter, 0 mSdLazyCounter, 117 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1292 SdHoareTripleChecker+Valid, 8231 SdHoareTripleChecker+Invalid, 118 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 13:22:36,397 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1292 Valid, 8231 Invalid, 118 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 117 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 13:22:36,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4405 states. [2023-12-25 13:22:36,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4405 to 4369. [2023-12-25 13:22:36,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4369 states, 4262 states have (on average 1.5096198967620835) internal successors, (6434), 4262 states have internal predecessors, (6434), 105 states have call successors, (105), 1 states have call predecessors, (105), 1 states have return successors, (105), 105 states have call predecessors, (105), 105 states have call successors, (105) [2023-12-25 13:22:36,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4369 states to 4369 states and 6644 transitions. [2023-12-25 13:22:36,604 INFO L78 Accepts]: Start accepts. Automaton has 4369 states and 6644 transitions. Word has length 962 [2023-12-25 13:22:36,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 13:22:36,604 INFO L495 AbstractCegarLoop]: Abstraction has 4369 states and 6644 transitions. [2023-12-25 13:22:36,605 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 93.85714285714286) internal successors, (657), 8 states have internal predecessors, (657), 3 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (9), 2 states have call predecessors, (9), 3 states have call successors, (9) [2023-12-25 13:22:36,605 INFO L276 IsEmpty]: Start isEmpty. Operand 4369 states and 6644 transitions. [2023-12-25 13:22:36,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 963 [2023-12-25 13:22:36,614 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 13:22:36,614 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 13:22:36,633 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-12-25 13:22:36,828 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable74,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-25 13:22:36,828 INFO L420 AbstractCegarLoop]: === Iteration 76 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 13:22:36,829 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 13:22:36,829 INFO L85 PathProgramCache]: Analyzing trace with hash -993528795, now seen corresponding path program 1 times [2023-12-25 13:22:36,829 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-25 13:22:36,829 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1290033419] [2023-12-25 13:22:36,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 13:22:36,829 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-25 13:22:44,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:22:45,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2023-12-25 13:22:45,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:22:45,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2023-12-25 13:22:45,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:22:45,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2023-12-25 13:22:45,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:22:45,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2023-12-25 13:22:45,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:22:45,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2023-12-25 13:22:45,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:22:45,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2023-12-25 13:22:45,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:22:45,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2023-12-25 13:22:45,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:22:45,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 665 [2023-12-25 13:22:45,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:22:45,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 680 [2023-12-25 13:22:45,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:22:45,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 700 [2023-12-25 13:22:45,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:22:45,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 717 [2023-12-25 13:22:45,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:22:45,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 728 [2023-12-25 13:22:45,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:22:45,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 740 [2023-12-25 13:22:45,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:22:45,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 753 [2023-12-25 13:22:45,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:22:45,941 INFO L134 CoverageAnalysis]: Checked inductivity of 642 backedges. 99 proven. 0 refuted. 0 times theorem prover too weak. 543 trivial. 0 not checked. [2023-12-25 13:22:45,941 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-25 13:22:45,941 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1290033419] [2023-12-25 13:22:45,941 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1290033419] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 13:22:45,941 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 13:22:45,941 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-25 13:22:45,941 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [396882825] [2023-12-25 13:22:45,941 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 13:22:45,942 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-25 13:22:45,942 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-25 13:22:45,943 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-25 13:22:45,943 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-12-25 13:22:45,943 INFO L87 Difference]: Start difference. First operand 4369 states and 6644 transitions. Second operand has 8 states, 8 states have (on average 89.875) internal successors, (719), 8 states have internal predecessors, (719), 3 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2023-12-25 13:22:47,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 13:22:47,202 INFO L93 Difference]: Finished difference Result 10395 states and 15849 transitions. [2023-12-25 13:22:47,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-25 13:22:47,203 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 89.875) internal successors, (719), 8 states have internal predecessors, (719), 3 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 962 [2023-12-25 13:22:47,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 13:22:47,209 INFO L225 Difference]: With dead ends: 10395 [2023-12-25 13:22:47,209 INFO L226 Difference]: Without dead ends: 7961 [2023-12-25 13:22:47,211 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=55, Invalid=127, Unknown=0, NotChecked=0, Total=182 [2023-12-25 13:22:47,213 INFO L413 NwaCegarLoop]: 2244 mSDtfsCounter, 3517 mSDsluCounter, 7747 mSDsCounter, 0 mSdLazyCounter, 1948 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3524 SdHoareTripleChecker+Valid, 9991 SdHoareTripleChecker+Invalid, 1957 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 1948 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-12-25 13:22:47,216 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3524 Valid, 9991 Invalid, 1957 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 1948 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-12-25 13:22:47,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7961 states. [2023-12-25 13:22:47,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7961 to 7933. [2023-12-25 13:22:47,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7933 states, 7737 states have (on average 1.5053638361121882) internal successors, (11647), 7737 states have internal predecessors, (11647), 194 states have call successors, (194), 1 states have call predecessors, (194), 1 states have return successors, (194), 194 states have call predecessors, (194), 194 states have call successors, (194) [2023-12-25 13:22:47,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7933 states to 7933 states and 12035 transitions. [2023-12-25 13:22:47,482 INFO L78 Accepts]: Start accepts. Automaton has 7933 states and 12035 transitions. Word has length 962 [2023-12-25 13:22:47,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 13:22:47,483 INFO L495 AbstractCegarLoop]: Abstraction has 7933 states and 12035 transitions. [2023-12-25 13:22:47,483 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 89.875) internal successors, (719), 8 states have internal predecessors, (719), 3 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2023-12-25 13:22:47,483 INFO L276 IsEmpty]: Start isEmpty. Operand 7933 states and 12035 transitions. [2023-12-25 13:22:47,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 963 [2023-12-25 13:22:47,495 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 13:22:47,496 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 13:22:47,496 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable75 [2023-12-25 13:22:47,496 INFO L420 AbstractCegarLoop]: === Iteration 77 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 13:22:47,496 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 13:22:47,496 INFO L85 PathProgramCache]: Analyzing trace with hash -1946108631, now seen corresponding path program 1 times [2023-12-25 13:22:47,496 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-25 13:22:47,496 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1909723743] [2023-12-25 13:22:47,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 13:22:47,497 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-25 13:22:51,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:22:55,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2023-12-25 13:22:55,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:22:55,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2023-12-25 13:22:55,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:22:55,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2023-12-25 13:22:55,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:22:55,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2023-12-25 13:22:55,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:22:55,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2023-12-25 13:22:55,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:22:55,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2023-12-25 13:22:55,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:22:55,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2023-12-25 13:22:55,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:22:55,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 665 [2023-12-25 13:22:55,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:22:55,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 680 [2023-12-25 13:22:55,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:22:55,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 700 [2023-12-25 13:22:55,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:22:55,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 717 [2023-12-25 13:22:55,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:22:55,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 728 [2023-12-25 13:22:55,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:22:55,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 740 [2023-12-25 13:22:55,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:22:55,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 753 [2023-12-25 13:22:55,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:22:55,545 INFO L134 CoverageAnalysis]: Checked inductivity of 642 backedges. 278 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-25 13:22:55,545 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-25 13:22:55,545 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1909723743] [2023-12-25 13:22:55,545 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1909723743] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 13:22:55,545 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 13:22:55,545 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-25 13:22:55,546 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1721864894] [2023-12-25 13:22:55,546 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 13:22:55,546 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-25 13:22:55,546 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-25 13:22:55,547 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-25 13:22:55,547 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2023-12-25 13:22:55,547 INFO L87 Difference]: Start difference. First operand 7933 states and 12035 transitions. Second operand has 10 states, 10 states have (on average 89.5) internal successors, (895), 10 states have internal predecessors, (895), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-25 13:22:57,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 13:22:57,331 INFO L93 Difference]: Finished difference Result 32557 states and 49588 transitions. [2023-12-25 13:22:57,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-12-25 13:22:57,332 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 89.5) internal successors, (895), 10 states have internal predecessors, (895), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 962 [2023-12-25 13:22:57,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 13:22:57,364 INFO L225 Difference]: With dead ends: 32557 [2023-12-25 13:22:57,364 INFO L226 Difference]: Without dead ends: 30167 [2023-12-25 13:22:57,376 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=134, Invalid=372, Unknown=0, NotChecked=0, Total=506 [2023-12-25 13:22:57,376 INFO L413 NwaCegarLoop]: 2603 mSDtfsCounter, 11811 mSDsluCounter, 15603 mSDsCounter, 0 mSdLazyCounter, 859 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11818 SdHoareTripleChecker+Valid, 18206 SdHoareTripleChecker+Invalid, 912 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 859 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-25 13:22:57,376 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11818 Valid, 18206 Invalid, 912 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 859 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-25 13:22:57,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30167 states. [2023-12-25 13:22:58,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30167 to 15145. [2023-12-25 13:22:58,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15145 states, 14755 states have (on average 1.4997627922738055) internal successors, (22129), 14755 states have internal predecessors, (22129), 388 states have call successors, (388), 1 states have call predecessors, (388), 1 states have return successors, (388), 388 states have call predecessors, (388), 388 states have call successors, (388) [2023-12-25 13:22:58,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15145 states to 15145 states and 22905 transitions. [2023-12-25 13:22:58,079 INFO L78 Accepts]: Start accepts. Automaton has 15145 states and 22905 transitions. Word has length 962 [2023-12-25 13:22:58,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 13:22:58,079 INFO L495 AbstractCegarLoop]: Abstraction has 15145 states and 22905 transitions. [2023-12-25 13:22:58,079 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 89.5) internal successors, (895), 10 states have internal predecessors, (895), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-25 13:22:58,079 INFO L276 IsEmpty]: Start isEmpty. Operand 15145 states and 22905 transitions. [2023-12-25 13:22:58,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 963 [2023-12-25 13:22:58,100 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 13:22:58,101 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 13:22:58,101 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable76 [2023-12-25 13:22:58,101 INFO L420 AbstractCegarLoop]: === Iteration 78 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 13:22:58,101 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 13:22:58,101 INFO L85 PathProgramCache]: Analyzing trace with hash 1632731843, now seen corresponding path program 1 times [2023-12-25 13:22:58,101 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-25 13:22:58,101 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2132054149] [2023-12-25 13:22:58,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 13:22:58,102 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-25 13:23:04,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:06,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2023-12-25 13:23:06,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:06,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2023-12-25 13:23:06,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:06,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2023-12-25 13:23:06,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:06,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2023-12-25 13:23:06,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:06,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2023-12-25 13:23:06,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:06,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2023-12-25 13:23:06,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:06,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2023-12-25 13:23:06,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:06,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 665 [2023-12-25 13:23:06,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:06,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 680 [2023-12-25 13:23:06,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:06,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 700 [2023-12-25 13:23:06,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:06,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 717 [2023-12-25 13:23:06,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:06,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 728 [2023-12-25 13:23:06,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:06,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 740 [2023-12-25 13:23:06,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:06,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 753 [2023-12-25 13:23:06,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:06,121 INFO L134 CoverageAnalysis]: Checked inductivity of 641 backedges. 95 proven. 0 refuted. 0 times theorem prover too weak. 546 trivial. 0 not checked. [2023-12-25 13:23:06,121 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-25 13:23:06,121 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2132054149] [2023-12-25 13:23:06,121 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2132054149] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 13:23:06,121 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 13:23:06,121 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 13:23:06,121 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [118595851] [2023-12-25 13:23:06,121 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 13:23:06,122 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 13:23:06,122 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-25 13:23:06,123 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 13:23:06,123 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-25 13:23:06,123 INFO L87 Difference]: Start difference. First operand 15145 states and 22905 transitions. Second operand has 4 states, 4 states have (on average 179.0) internal successors, (716), 4 states have internal predecessors, (716), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-25 13:23:07,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 13:23:07,039 INFO L93 Difference]: Finished difference Result 24677 states and 37671 transitions. [2023-12-25 13:23:07,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 13:23:07,040 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 179.0) internal successors, (716), 4 states have internal predecessors, (716), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 962 [2023-12-25 13:23:07,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 13:23:07,054 INFO L225 Difference]: With dead ends: 24677 [2023-12-25 13:23:07,054 INFO L226 Difference]: Without dead ends: 15145 [2023-12-25 13:23:07,063 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-25 13:23:07,063 INFO L413 NwaCegarLoop]: 1096 mSDtfsCounter, 1192 mSDsluCounter, 1086 mSDsCounter, 0 mSdLazyCounter, 593 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1192 SdHoareTripleChecker+Valid, 2182 SdHoareTripleChecker+Invalid, 593 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 593 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-25 13:23:07,063 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1192 Valid, 2182 Invalid, 593 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 593 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-25 13:23:07,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15145 states. [2023-12-25 13:23:07,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15145 to 15145. [2023-12-25 13:23:07,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15145 states, 14755 states have (on average 1.4981362250084718) internal successors, (22105), 14755 states have internal predecessors, (22105), 388 states have call successors, (388), 1 states have call predecessors, (388), 1 states have return successors, (388), 388 states have call predecessors, (388), 388 states have call successors, (388) [2023-12-25 13:23:07,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15145 states to 15145 states and 22881 transitions. [2023-12-25 13:23:07,652 INFO L78 Accepts]: Start accepts. Automaton has 15145 states and 22881 transitions. Word has length 962 [2023-12-25 13:23:07,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 13:23:07,652 INFO L495 AbstractCegarLoop]: Abstraction has 15145 states and 22881 transitions. [2023-12-25 13:23:07,652 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 179.0) internal successors, (716), 4 states have internal predecessors, (716), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-25 13:23:07,652 INFO L276 IsEmpty]: Start isEmpty. Operand 15145 states and 22881 transitions. [2023-12-25 13:23:07,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 963 [2023-12-25 13:23:07,740 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 13:23:07,741 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 13:23:07,741 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable77 [2023-12-25 13:23:07,741 INFO L420 AbstractCegarLoop]: === Iteration 79 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 13:23:07,741 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 13:23:07,741 INFO L85 PathProgramCache]: Analyzing trace with hash 175762239, now seen corresponding path program 1 times [2023-12-25 13:23:07,741 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-25 13:23:07,741 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [228995778] [2023-12-25 13:23:07,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 13:23:07,742 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-25 13:23:14,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:16,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2023-12-25 13:23:16,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:16,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2023-12-25 13:23:16,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:16,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2023-12-25 13:23:16,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:16,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2023-12-25 13:23:16,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:16,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2023-12-25 13:23:16,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:16,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2023-12-25 13:23:16,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:16,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2023-12-25 13:23:16,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:16,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 665 [2023-12-25 13:23:16,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:16,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 680 [2023-12-25 13:23:16,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:16,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 700 [2023-12-25 13:23:16,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:16,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 717 [2023-12-25 13:23:16,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:16,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 728 [2023-12-25 13:23:16,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:16,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 740 [2023-12-25 13:23:16,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:16,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 753 [2023-12-25 13:23:16,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:16,314 INFO L134 CoverageAnalysis]: Checked inductivity of 641 backedges. 184 proven. 0 refuted. 0 times theorem prover too weak. 457 trivial. 0 not checked. [2023-12-25 13:23:16,314 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-25 13:23:16,314 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [228995778] [2023-12-25 13:23:16,314 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [228995778] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 13:23:16,314 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 13:23:16,314 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-25 13:23:16,314 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1193266174] [2023-12-25 13:23:16,314 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 13:23:16,315 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-25 13:23:16,315 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-25 13:23:16,315 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-25 13:23:16,316 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-12-25 13:23:16,316 INFO L87 Difference]: Start difference. First operand 15145 states and 22881 transitions. Second operand has 8 states, 8 states have (on average 100.625) internal successors, (805), 8 states have internal predecessors, (805), 3 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2023-12-25 13:23:17,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 13:23:17,502 INFO L93 Difference]: Finished difference Result 16183 states and 24409 transitions. [2023-12-25 13:23:17,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-25 13:23:17,502 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 100.625) internal successors, (805), 8 states have internal predecessors, (805), 3 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 962 [2023-12-25 13:23:17,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 13:23:17,509 INFO L225 Difference]: With dead ends: 16183 [2023-12-25 13:23:17,509 INFO L226 Difference]: Without dead ends: 8284 [2023-12-25 13:23:17,512 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=109, Unknown=0, NotChecked=0, Total=156 [2023-12-25 13:23:17,512 INFO L413 NwaCegarLoop]: 1637 mSDtfsCounter, 2645 mSDsluCounter, 5926 mSDsCounter, 0 mSdLazyCounter, 966 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2652 SdHoareTripleChecker+Valid, 7563 SdHoareTripleChecker+Invalid, 974 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 966 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-25 13:23:17,513 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2652 Valid, 7563 Invalid, 974 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 966 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-25 13:23:17,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8284 states. [2023-12-25 13:23:17,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8284 to 8248. [2023-12-25 13:23:17,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8248 states, 8036 states have (on average 1.4935291189646591) internal successors, (12002), 8036 states have internal predecessors, (12002), 210 states have call successors, (210), 1 states have call predecessors, (210), 1 states have return successors, (210), 210 states have call predecessors, (210), 210 states have call successors, (210) [2023-12-25 13:23:17,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8248 states to 8248 states and 12422 transitions. [2023-12-25 13:23:17,813 INFO L78 Accepts]: Start accepts. Automaton has 8248 states and 12422 transitions. Word has length 962 [2023-12-25 13:23:17,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 13:23:17,813 INFO L495 AbstractCegarLoop]: Abstraction has 8248 states and 12422 transitions. [2023-12-25 13:23:17,813 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 100.625) internal successors, (805), 8 states have internal predecessors, (805), 3 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2023-12-25 13:23:17,813 INFO L276 IsEmpty]: Start isEmpty. Operand 8248 states and 12422 transitions. [2023-12-25 13:23:17,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 963 [2023-12-25 13:23:17,826 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 13:23:17,827 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 13:23:17,828 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable78 [2023-12-25 13:23:17,828 INFO L420 AbstractCegarLoop]: === Iteration 80 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 13:23:17,828 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 13:23:17,828 INFO L85 PathProgramCache]: Analyzing trace with hash 182899767, now seen corresponding path program 1 times [2023-12-25 13:23:17,828 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-25 13:23:17,828 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [284640027] [2023-12-25 13:23:17,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 13:23:17,828 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-25 13:23:25,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:27,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2023-12-25 13:23:27,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:27,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2023-12-25 13:23:27,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:27,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2023-12-25 13:23:27,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:27,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2023-12-25 13:23:27,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:27,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2023-12-25 13:23:27,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:27,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2023-12-25 13:23:27,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:27,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2023-12-25 13:23:27,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:27,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 665 [2023-12-25 13:23:27,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:27,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 680 [2023-12-25 13:23:27,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:27,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 700 [2023-12-25 13:23:27,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:27,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 717 [2023-12-25 13:23:27,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:27,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 728 [2023-12-25 13:23:27,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:27,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 740 [2023-12-25 13:23:27,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:27,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 753 [2023-12-25 13:23:27,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:27,997 INFO L134 CoverageAnalysis]: Checked inductivity of 641 backedges. 276 proven. 1 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-25 13:23:27,997 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-25 13:23:27,998 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [284640027] [2023-12-25 13:23:27,998 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [284640027] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-25 13:23:27,998 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1180391881] [2023-12-25 13:23:27,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 13:23:27,998 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-25 13:23:27,998 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-25 13:23:27,999 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-25 13:23:28,000 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-25 13:23:29,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:29,073 INFO L262 TraceCheckSpWp]: Trace formula consists of 5874 conjuncts, 17 conjunts are in the unsatisfiable core [2023-12-25 13:23:29,087 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 13:23:29,232 INFO L134 CoverageAnalysis]: Checked inductivity of 641 backedges. 64 proven. 0 refuted. 0 times theorem prover too weak. 577 trivial. 0 not checked. [2023-12-25 13:23:29,232 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 13:23:29,232 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1180391881] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 13:23:29,232 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-25 13:23:29,232 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [9] total 15 [2023-12-25 13:23:29,232 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1749565749] [2023-12-25 13:23:29,232 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 13:23:29,233 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-25 13:23:29,233 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-25 13:23:29,234 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-25 13:23:29,234 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=176, Unknown=0, NotChecked=0, Total=210 [2023-12-25 13:23:29,234 INFO L87 Difference]: Start difference. First operand 8248 states and 12422 transitions. Second operand has 8 states, 7 states have (on average 92.0) internal successors, (644), 8 states have internal predecessors, (644), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-25 13:23:29,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 13:23:29,670 INFO L93 Difference]: Finished difference Result 15715 states and 23653 transitions. [2023-12-25 13:23:29,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-25 13:23:29,670 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 92.0) internal successors, (644), 8 states have internal predecessors, (644), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) Word has length 962 [2023-12-25 13:23:29,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 13:23:29,678 INFO L225 Difference]: With dead ends: 15715 [2023-12-25 13:23:29,678 INFO L226 Difference]: Without dead ends: 8248 [2023-12-25 13:23:29,683 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1002 GetRequests, 985 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=50, Invalid=292, Unknown=0, NotChecked=0, Total=342 [2023-12-25 13:23:29,684 INFO L413 NwaCegarLoop]: 1374 mSDtfsCounter, 1282 mSDsluCounter, 6854 mSDsCounter, 0 mSdLazyCounter, 120 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1289 SdHoareTripleChecker+Valid, 8228 SdHoareTripleChecker+Invalid, 120 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 120 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 13:23:29,684 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1289 Valid, 8228 Invalid, 120 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 120 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 13:23:29,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8248 states. [2023-12-25 13:23:29,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8248 to 8176. [2023-12-25 13:23:29,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8176 states, 7964 states have (on average 1.4934706177800101) internal successors, (11894), 7964 states have internal predecessors, (11894), 210 states have call successors, (210), 1 states have call predecessors, (210), 1 states have return successors, (210), 210 states have call predecessors, (210), 210 states have call successors, (210) [2023-12-25 13:23:29,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8176 states to 8176 states and 12314 transitions. [2023-12-25 13:23:29,984 INFO L78 Accepts]: Start accepts. Automaton has 8176 states and 12314 transitions. Word has length 962 [2023-12-25 13:23:29,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 13:23:29,985 INFO L495 AbstractCegarLoop]: Abstraction has 8176 states and 12314 transitions. [2023-12-25 13:23:29,985 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 92.0) internal successors, (644), 8 states have internal predecessors, (644), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-25 13:23:29,985 INFO L276 IsEmpty]: Start isEmpty. Operand 8176 states and 12314 transitions. [2023-12-25 13:23:29,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 964 [2023-12-25 13:23:29,998 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 13:23:29,998 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 13:23:30,012 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-12-25 13:23:30,212 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable79 [2023-12-25 13:23:30,212 INFO L420 AbstractCegarLoop]: === Iteration 81 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 13:23:30,212 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 13:23:30,213 INFO L85 PathProgramCache]: Analyzing trace with hash -701778963, now seen corresponding path program 1 times [2023-12-25 13:23:30,213 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-25 13:23:30,213 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1733580357] [2023-12-25 13:23:30,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 13:23:30,213 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-25 13:23:30,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:31,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2023-12-25 13:23:31,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:31,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2023-12-25 13:23:31,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:31,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2023-12-25 13:23:31,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:31,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2023-12-25 13:23:31,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:31,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2023-12-25 13:23:31,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:31,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2023-12-25 13:23:31,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:31,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2023-12-25 13:23:31,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:31,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 666 [2023-12-25 13:23:31,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:31,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 681 [2023-12-25 13:23:31,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:31,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 701 [2023-12-25 13:23:31,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:31,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 718 [2023-12-25 13:23:31,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:31,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 729 [2023-12-25 13:23:31,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:31,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 741 [2023-12-25 13:23:31,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:31,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 754 [2023-12-25 13:23:31,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:31,671 INFO L134 CoverageAnalysis]: Checked inductivity of 642 backedges. 278 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-25 13:23:31,671 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-25 13:23:31,671 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1733580357] [2023-12-25 13:23:31,671 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1733580357] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 13:23:31,672 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 13:23:31,672 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-25 13:23:31,672 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [661809883] [2023-12-25 13:23:31,672 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 13:23:31,672 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-25 13:23:31,673 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-25 13:23:31,673 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-25 13:23:31,673 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-12-25 13:23:31,673 INFO L87 Difference]: Start difference. First operand 8176 states and 12314 transitions. Second operand has 6 states, 6 states have (on average 149.33333333333334) internal successors, (896), 6 states have internal predecessors, (896), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-25 13:23:33,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 13:23:33,032 INFO L93 Difference]: Finished difference Result 12708 states and 19273 transitions. [2023-12-25 13:23:33,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-25 13:23:33,033 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 149.33333333333334) internal successors, (896), 6 states have internal predecessors, (896), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 963 [2023-12-25 13:23:33,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 13:23:33,040 INFO L225 Difference]: With dead ends: 12708 [2023-12-25 13:23:33,040 INFO L226 Difference]: Without dead ends: 10444 [2023-12-25 13:23:33,042 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-12-25 13:23:33,042 INFO L413 NwaCegarLoop]: 1885 mSDtfsCounter, 2200 mSDsluCounter, 4796 mSDsCounter, 0 mSdLazyCounter, 1892 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2207 SdHoareTripleChecker+Valid, 6681 SdHoareTripleChecker+Invalid, 1893 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1892 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-12-25 13:23:33,043 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2207 Valid, 6681 Invalid, 1893 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1892 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-12-25 13:23:33,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10444 states. [2023-12-25 13:23:33,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10444 to 8180. [2023-12-25 13:23:33,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8180 states, 7968 states have (on average 1.493222891566265) internal successors, (11898), 7968 states have internal predecessors, (11898), 210 states have call successors, (210), 1 states have call predecessors, (210), 1 states have return successors, (210), 210 states have call predecessors, (210), 210 states have call successors, (210) [2023-12-25 13:23:33,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8180 states to 8180 states and 12318 transitions. [2023-12-25 13:23:33,349 INFO L78 Accepts]: Start accepts. Automaton has 8180 states and 12318 transitions. Word has length 963 [2023-12-25 13:23:33,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 13:23:33,349 INFO L495 AbstractCegarLoop]: Abstraction has 8180 states and 12318 transitions. [2023-12-25 13:23:33,349 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 149.33333333333334) internal successors, (896), 6 states have internal predecessors, (896), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-25 13:23:33,349 INFO L276 IsEmpty]: Start isEmpty. Operand 8180 states and 12318 transitions. [2023-12-25 13:23:33,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 964 [2023-12-25 13:23:33,362 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 13:23:33,362 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 13:23:33,362 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable80 [2023-12-25 13:23:33,363 INFO L420 AbstractCegarLoop]: === Iteration 82 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 13:23:33,363 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 13:23:33,363 INFO L85 PathProgramCache]: Analyzing trace with hash 1330661291, now seen corresponding path program 1 times [2023-12-25 13:23:33,363 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-25 13:23:33,363 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [472429145] [2023-12-25 13:23:33,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 13:23:33,363 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-25 13:23:42,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:44,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2023-12-25 13:23:44,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:44,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2023-12-25 13:23:44,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:44,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2023-12-25 13:23:44,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:44,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2023-12-25 13:23:44,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:44,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2023-12-25 13:23:44,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:44,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2023-12-25 13:23:44,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:44,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2023-12-25 13:23:44,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:44,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 666 [2023-12-25 13:23:44,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:44,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 681 [2023-12-25 13:23:44,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:44,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 701 [2023-12-25 13:23:44,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:44,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 718 [2023-12-25 13:23:44,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:44,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 729 [2023-12-25 13:23:44,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:44,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 741 [2023-12-25 13:23:44,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:44,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 754 [2023-12-25 13:23:44,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:44,639 INFO L134 CoverageAnalysis]: Checked inductivity of 642 backedges. 277 proven. 1 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-25 13:23:44,640 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-25 13:23:44,640 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [472429145] [2023-12-25 13:23:44,640 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [472429145] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-25 13:23:44,640 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1228763695] [2023-12-25 13:23:44,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 13:23:44,640 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-25 13:23:44,640 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-25 13:23:44,642 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-25 13:23:44,644 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-12-25 13:23:45,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:45,779 INFO L262 TraceCheckSpWp]: Trace formula consists of 5878 conjuncts, 17 conjunts are in the unsatisfiable core [2023-12-25 13:23:45,792 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 13:23:45,937 INFO L134 CoverageAnalysis]: Checked inductivity of 642 backedges. 178 proven. 0 refuted. 0 times theorem prover too weak. 464 trivial. 0 not checked. [2023-12-25 13:23:45,938 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 13:23:45,938 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1228763695] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 13:23:45,938 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-25 13:23:45,938 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [9] total 15 [2023-12-25 13:23:45,938 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1477040166] [2023-12-25 13:23:45,938 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 13:23:45,939 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-25 13:23:45,939 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-25 13:23:45,939 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-25 13:23:45,939 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=176, Unknown=0, NotChecked=0, Total=210 [2023-12-25 13:23:45,939 INFO L87 Difference]: Start difference. First operand 8180 states and 12318 transitions. Second operand has 8 states, 7 states have (on average 96.14285714285714) internal successors, (673), 8 states have internal predecessors, (673), 3 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) [2023-12-25 13:23:46,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 13:23:46,334 INFO L93 Difference]: Finished difference Result 14587 states and 22013 transitions. [2023-12-25 13:23:46,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-25 13:23:46,335 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 96.14285714285714) internal successors, (673), 8 states have internal predecessors, (673), 3 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) Word has length 963 [2023-12-25 13:23:46,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 13:23:46,344 INFO L225 Difference]: With dead ends: 14587 [2023-12-25 13:23:46,344 INFO L226 Difference]: Without dead ends: 8180 [2023-12-25 13:23:46,351 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1003 GetRequests, 986 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=50, Invalid=292, Unknown=0, NotChecked=0, Total=342 [2023-12-25 13:23:46,351 INFO L413 NwaCegarLoop]: 1371 mSDtfsCounter, 1282 mSDsluCounter, 6842 mSDsCounter, 0 mSdLazyCounter, 117 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1289 SdHoareTripleChecker+Valid, 8213 SdHoareTripleChecker+Invalid, 117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 13:23:46,351 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1289 Valid, 8213 Invalid, 117 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 117 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 13:23:46,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8180 states. [2023-12-25 13:23:46,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8180 to 8180. [2023-12-25 13:23:46,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8180 states, 7968 states have (on average 1.4897088353413654) internal successors, (11870), 7968 states have internal predecessors, (11870), 210 states have call successors, (210), 1 states have call predecessors, (210), 1 states have return successors, (210), 210 states have call predecessors, (210), 210 states have call successors, (210) [2023-12-25 13:23:46,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8180 states to 8180 states and 12290 transitions. [2023-12-25 13:23:46,661 INFO L78 Accepts]: Start accepts. Automaton has 8180 states and 12290 transitions. Word has length 963 [2023-12-25 13:23:46,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 13:23:46,661 INFO L495 AbstractCegarLoop]: Abstraction has 8180 states and 12290 transitions. [2023-12-25 13:23:46,661 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 96.14285714285714) internal successors, (673), 8 states have internal predecessors, (673), 3 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) [2023-12-25 13:23:46,661 INFO L276 IsEmpty]: Start isEmpty. Operand 8180 states and 12290 transitions. [2023-12-25 13:23:46,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 966 [2023-12-25 13:23:46,675 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 13:23:46,675 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 13:23:46,688 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-12-25 13:23:46,888 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable81,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-25 13:23:46,889 INFO L420 AbstractCegarLoop]: === Iteration 83 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 13:23:46,889 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 13:23:46,889 INFO L85 PathProgramCache]: Analyzing trace with hash 543864607, now seen corresponding path program 1 times [2023-12-25 13:23:46,889 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-25 13:23:46,889 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1529847734] [2023-12-25 13:23:46,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 13:23:46,889 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-25 13:23:55,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:57,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2023-12-25 13:23:57,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:57,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2023-12-25 13:23:57,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:57,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2023-12-25 13:23:57,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:57,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2023-12-25 13:23:57,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:57,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2023-12-25 13:23:57,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:57,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2023-12-25 13:23:57,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:57,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2023-12-25 13:23:57,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:57,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 667 [2023-12-25 13:23:57,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:57,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 682 [2023-12-25 13:23:57,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:57,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 703 [2023-12-25 13:23:57,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:57,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 720 [2023-12-25 13:23:57,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:57,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 731 [2023-12-25 13:23:57,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:57,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 743 [2023-12-25 13:23:57,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:57,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 756 [2023-12-25 13:23:57,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:57,870 INFO L134 CoverageAnalysis]: Checked inductivity of 643 backedges. 278 proven. 1 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-25 13:23:57,870 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-25 13:23:57,870 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1529847734] [2023-12-25 13:23:57,870 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1529847734] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-25 13:23:57,870 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1031118532] [2023-12-25 13:23:57,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 13:23:57,871 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-25 13:23:57,871 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-25 13:23:57,872 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-25 13:23:57,876 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-12-25 13:23:58,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:58,956 INFO L262 TraceCheckSpWp]: Trace formula consists of 5884 conjuncts, 17 conjunts are in the unsatisfiable core [2023-12-25 13:23:58,969 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 13:23:59,124 INFO L134 CoverageAnalysis]: Checked inductivity of 643 backedges. 223 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2023-12-25 13:23:59,124 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 13:23:59,124 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1031118532] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 13:23:59,124 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-25 13:23:59,124 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [9] total 15 [2023-12-25 13:23:59,125 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2117692557] [2023-12-25 13:23:59,125 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 13:23:59,125 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-25 13:23:59,125 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-25 13:23:59,126 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-25 13:23:59,126 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=176, Unknown=0, NotChecked=0, Total=210 [2023-12-25 13:23:59,126 INFO L87 Difference]: Start difference. First operand 8180 states and 12290 transitions. Second operand has 8 states, 7 states have (on average 98.14285714285714) internal successors, (687), 8 states have internal predecessors, (687), 3 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) [2023-12-25 13:23:59,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 13:23:59,539 INFO L93 Difference]: Finished difference Result 13887 states and 21021 transitions. [2023-12-25 13:23:59,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-25 13:23:59,540 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 98.14285714285714) internal successors, (687), 8 states have internal predecessors, (687), 3 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) Word has length 965 [2023-12-25 13:23:59,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 13:23:59,547 INFO L225 Difference]: With dead ends: 13887 [2023-12-25 13:23:59,547 INFO L226 Difference]: Without dead ends: 8180 [2023-12-25 13:23:59,552 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1005 GetRequests, 988 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=50, Invalid=292, Unknown=0, NotChecked=0, Total=342 [2023-12-25 13:23:59,553 INFO L413 NwaCegarLoop]: 1370 mSDtfsCounter, 1281 mSDsluCounter, 6837 mSDsCounter, 0 mSdLazyCounter, 117 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1288 SdHoareTripleChecker+Valid, 8207 SdHoareTripleChecker+Invalid, 117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 13:23:59,553 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1288 Valid, 8207 Invalid, 117 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 117 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 13:23:59,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8180 states. [2023-12-25 13:23:59,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8180 to 8180. [2023-12-25 13:23:59,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8180 states, 7968 states have (on average 1.4841867469879517) internal successors, (11826), 7968 states have internal predecessors, (11826), 210 states have call successors, (210), 1 states have call predecessors, (210), 1 states have return successors, (210), 210 states have call predecessors, (210), 210 states have call successors, (210) [2023-12-25 13:23:59,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8180 states to 8180 states and 12246 transitions. [2023-12-25 13:23:59,887 INFO L78 Accepts]: Start accepts. Automaton has 8180 states and 12246 transitions. Word has length 965 [2023-12-25 13:23:59,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 13:23:59,887 INFO L495 AbstractCegarLoop]: Abstraction has 8180 states and 12246 transitions. [2023-12-25 13:23:59,887 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 98.14285714285714) internal successors, (687), 8 states have internal predecessors, (687), 3 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) [2023-12-25 13:23:59,887 INFO L276 IsEmpty]: Start isEmpty. Operand 8180 states and 12246 transitions. [2023-12-25 13:23:59,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 968 [2023-12-25 13:23:59,900 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 13:23:59,900 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 13:23:59,913 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-12-25 13:24:00,108 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable82,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-25 13:24:00,109 INFO L420 AbstractCegarLoop]: === Iteration 84 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 13:24:00,109 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 13:24:00,109 INFO L85 PathProgramCache]: Analyzing trace with hash -1732276821, now seen corresponding path program 1 times [2023-12-25 13:24:00,109 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-25 13:24:00,120 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [895326470] [2023-12-25 13:24:00,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 13:24:00,120 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-25 13:24:08,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:24:10,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2023-12-25 13:24:10,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:24:10,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2023-12-25 13:24:10,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:24:10,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2023-12-25 13:24:10,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:24:10,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2023-12-25 13:24:10,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:24:10,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2023-12-25 13:24:10,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:24:10,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2023-12-25 13:24:10,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:24:10,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2023-12-25 13:24:10,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:24:10,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 668 [2023-12-25 13:24:10,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:24:10,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 683 [2023-12-25 13:24:10,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:24:10,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 704 [2023-12-25 13:24:10,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:24:10,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 722 [2023-12-25 13:24:10,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:24:10,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 733 [2023-12-25 13:24:10,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:24:10,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 745 [2023-12-25 13:24:10,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:24:10,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 758 [2023-12-25 13:24:10,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:24:10,587 INFO L134 CoverageAnalysis]: Checked inductivity of 644 backedges. 279 proven. 1 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-25 13:24:10,587 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-25 13:24:10,587 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [895326470] [2023-12-25 13:24:10,587 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [895326470] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-25 13:24:10,588 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1185137863] [2023-12-25 13:24:10,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 13:24:10,588 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-25 13:24:10,588 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-25 13:24:10,589 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-25 13:24:10,591 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-12-25 13:24:11,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:24:11,677 INFO L262 TraceCheckSpWp]: Trace formula consists of 5890 conjuncts, 17 conjunts are in the unsatisfiable core [2023-12-25 13:24:11,690 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 13:24:11,810 INFO L134 CoverageAnalysis]: Checked inductivity of 644 backedges. 277 proven. 0 refuted. 0 times theorem prover too weak. 367 trivial. 0 not checked. [2023-12-25 13:24:11,811 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 13:24:11,811 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1185137863] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 13:24:11,811 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-25 13:24:11,811 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [9] total 15 [2023-12-25 13:24:11,811 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1147400233] [2023-12-25 13:24:11,811 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 13:24:11,812 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-25 13:24:11,812 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-25 13:24:11,812 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-25 13:24:11,812 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=176, Unknown=0, NotChecked=0, Total=210 [2023-12-25 13:24:11,813 INFO L87 Difference]: Start difference. First operand 8180 states and 12246 transitions. Second operand has 8 states, 7 states have (on average 100.14285714285714) internal successors, (701), 8 states have internal predecessors, (701), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) [2023-12-25 13:24:12,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 13:24:12,220 INFO L93 Difference]: Finished difference Result 13243 states and 20057 transitions. [2023-12-25 13:24:12,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-25 13:24:12,220 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 100.14285714285714) internal successors, (701), 8 states have internal predecessors, (701), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) Word has length 967 [2023-12-25 13:24:12,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 13:24:12,228 INFO L225 Difference]: With dead ends: 13243 [2023-12-25 13:24:12,228 INFO L226 Difference]: Without dead ends: 8180 [2023-12-25 13:24:12,231 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1007 GetRequests, 990 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=50, Invalid=292, Unknown=0, NotChecked=0, Total=342 [2023-12-25 13:24:12,232 INFO L413 NwaCegarLoop]: 1369 mSDtfsCounter, 1280 mSDsluCounter, 6832 mSDsCounter, 0 mSdLazyCounter, 117 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1287 SdHoareTripleChecker+Valid, 8201 SdHoareTripleChecker+Invalid, 117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 13:24:12,232 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1287 Valid, 8201 Invalid, 117 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 117 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 13:24:12,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8180 states. [2023-12-25 13:24:12,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8180 to 8180. [2023-12-25 13:24:12,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8180 states, 7968 states have (on average 1.4821787148594376) internal successors, (11810), 7968 states have internal predecessors, (11810), 210 states have call successors, (210), 1 states have call predecessors, (210), 1 states have return successors, (210), 210 states have call predecessors, (210), 210 states have call successors, (210) [2023-12-25 13:24:12,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8180 states to 8180 states and 12230 transitions. [2023-12-25 13:24:12,568 INFO L78 Accepts]: Start accepts. Automaton has 8180 states and 12230 transitions. Word has length 967 [2023-12-25 13:24:12,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 13:24:12,568 INFO L495 AbstractCegarLoop]: Abstraction has 8180 states and 12230 transitions. [2023-12-25 13:24:12,568 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 100.14285714285714) internal successors, (701), 8 states have internal predecessors, (701), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) [2023-12-25 13:24:12,568 INFO L276 IsEmpty]: Start isEmpty. Operand 8180 states and 12230 transitions. [2023-12-25 13:24:12,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 970 [2023-12-25 13:24:12,581 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 13:24:12,582 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 13:24:12,595 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2023-12-25 13:24:12,794 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable83,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-25 13:24:12,795 INFO L420 AbstractCegarLoop]: === Iteration 85 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 13:24:12,795 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 13:24:12,795 INFO L85 PathProgramCache]: Analyzing trace with hash -382117161, now seen corresponding path program 1 times [2023-12-25 13:24:12,795 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-25 13:24:12,795 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1385562405] [2023-12-25 13:24:12,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 13:24:12,796 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-25 13:24:19,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:24:21,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2023-12-25 13:24:21,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:24:21,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2023-12-25 13:24:21,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:24:21,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2023-12-25 13:24:21,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:24:21,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2023-12-25 13:24:21,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:24:21,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2023-12-25 13:24:21,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:24:21,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2023-12-25 13:24:21,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:24:21,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2023-12-25 13:24:21,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:24:21,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 669 [2023-12-25 13:24:21,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:24:21,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 684 [2023-12-25 13:24:21,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:24:21,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 705 [2023-12-25 13:24:21,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:24:21,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 723 [2023-12-25 13:24:21,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:24:21,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 734 [2023-12-25 13:24:21,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:24:21,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 747 [2023-12-25 13:24:21,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:24:21,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 760 [2023-12-25 13:24:21,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:24:21,633 INFO L134 CoverageAnalysis]: Checked inductivity of 645 backedges. 281 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-25 13:24:21,633 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-25 13:24:21,633 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1385562405] [2023-12-25 13:24:21,634 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1385562405] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 13:24:21,634 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 13:24:21,634 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-25 13:24:21,634 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1798714684] [2023-12-25 13:24:21,634 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 13:24:21,635 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-25 13:24:21,635 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-25 13:24:21,635 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-25 13:24:21,635 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-12-25 13:24:21,635 INFO L87 Difference]: Start difference. First operand 8180 states and 12230 transitions. Second operand has 8 states, 8 states have (on average 112.75) internal successors, (902), 8 states have internal predecessors, (902), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-25 13:24:22,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 13:24:22,266 INFO L93 Difference]: Finished difference Result 14408 states and 21808 transitions. [2023-12-25 13:24:22,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-25 13:24:22,266 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 112.75) internal successors, (902), 8 states have internal predecessors, (902), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 969 [2023-12-25 13:24:22,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 13:24:22,278 INFO L225 Difference]: With dead ends: 14408 [2023-12-25 13:24:22,278 INFO L226 Difference]: Without dead ends: 12005 [2023-12-25 13:24:22,283 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2023-12-25 13:24:22,283 INFO L413 NwaCegarLoop]: 2353 mSDtfsCounter, 5776 mSDsluCounter, 13072 mSDsCounter, 0 mSdLazyCounter, 301 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5783 SdHoareTripleChecker+Valid, 15425 SdHoareTripleChecker+Invalid, 301 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 301 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-25 13:24:22,284 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5783 Valid, 15425 Invalid, 301 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 301 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-25 13:24:22,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12005 states. [2023-12-25 13:24:22,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12005 to 9644. [2023-12-25 13:24:22,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9644 states, 9432 states have (on average 1.4938507209499576) internal successors, (14090), 9432 states have internal predecessors, (14090), 210 states have call successors, (210), 1 states have call predecessors, (210), 1 states have return successors, (210), 210 states have call predecessors, (210), 210 states have call successors, (210) [2023-12-25 13:24:22,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9644 states to 9644 states and 14510 transitions. [2023-12-25 13:24:22,616 INFO L78 Accepts]: Start accepts. Automaton has 9644 states and 14510 transitions. Word has length 969 [2023-12-25 13:24:22,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 13:24:22,616 INFO L495 AbstractCegarLoop]: Abstraction has 9644 states and 14510 transitions. [2023-12-25 13:24:22,616 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 112.75) internal successors, (902), 8 states have internal predecessors, (902), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-25 13:24:22,616 INFO L276 IsEmpty]: Start isEmpty. Operand 9644 states and 14510 transitions. [2023-12-25 13:24:22,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 970 [2023-12-25 13:24:22,631 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 13:24:22,631 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 13:24:22,631 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable84 [2023-12-25 13:24:22,631 INFO L420 AbstractCegarLoop]: === Iteration 86 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 13:24:22,631 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 13:24:22,632 INFO L85 PathProgramCache]: Analyzing trace with hash 492432393, now seen corresponding path program 1 times [2023-12-25 13:24:22,632 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-25 13:24:22,632 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1723080723] [2023-12-25 13:24:22,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 13:24:22,632 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-25 13:24:30,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:24:33,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2023-12-25 13:24:33,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:24:33,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2023-12-25 13:24:33,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:24:33,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2023-12-25 13:24:33,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:24:33,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2023-12-25 13:24:33,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:24:33,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2023-12-25 13:24:33,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:24:33,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2023-12-25 13:24:33,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:24:33,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2023-12-25 13:24:33,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:24:33,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 669 [2023-12-25 13:24:33,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:24:33,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 684 [2023-12-25 13:24:33,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:24:33,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 705 [2023-12-25 13:24:33,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:24:33,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 723 [2023-12-25 13:24:33,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:24:33,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 734 [2023-12-25 13:24:33,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:24:33,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 747 [2023-12-25 13:24:33,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:24:33,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 760 [2023-12-25 13:24:33,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:24:33,101 INFO L134 CoverageAnalysis]: Checked inductivity of 645 backedges. 280 proven. 1 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-25 13:24:33,101 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-25 13:24:33,101 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1723080723] [2023-12-25 13:24:33,101 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1723080723] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-25 13:24:33,101 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [979642958] [2023-12-25 13:24:33,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 13:24:33,101 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-25 13:24:33,101 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-25 13:24:33,102 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-25 13:24:33,104 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-12-25 13:24:34,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:24:34,181 INFO L262 TraceCheckSpWp]: Trace formula consists of 5895 conjuncts, 15 conjunts are in the unsatisfiable core [2023-12-25 13:24:34,192 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 13:24:34,683 INFO L134 CoverageAnalysis]: Checked inductivity of 645 backedges. 477 proven. 0 refuted. 0 times theorem prover too weak. 168 trivial. 0 not checked. [2023-12-25 13:24:34,683 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 13:24:34,684 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [979642958] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 13:24:34,684 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-25 13:24:34,684 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [9] total 15 [2023-12-25 13:24:34,684 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [972196173] [2023-12-25 13:24:34,684 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 13:24:34,685 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-25 13:24:34,685 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-25 13:24:34,686 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-25 13:24:34,687 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=172, Unknown=0, NotChecked=0, Total=210 [2023-12-25 13:24:34,687 INFO L87 Difference]: Start difference. First operand 9644 states and 14510 transitions. Second operand has 8 states, 8 states have (on average 113.125) internal successors, (905), 8 states have internal predecessors, (905), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-25 13:24:35,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 13:24:35,302 INFO L93 Difference]: Finished difference Result 19904 states and 29970 transitions. [2023-12-25 13:24:35,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-25 13:24:35,303 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 113.125) internal successors, (905), 8 states have internal predecessors, (905), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 969 [2023-12-25 13:24:35,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 13:24:35,318 INFO L225 Difference]: With dead ends: 19904 [2023-12-25 13:24:35,318 INFO L226 Difference]: Without dead ends: 16702 [2023-12-25 13:24:35,324 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1006 GetRequests, 991 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=50, Invalid=222, Unknown=0, NotChecked=0, Total=272 [2023-12-25 13:24:35,327 INFO L413 NwaCegarLoop]: 1377 mSDtfsCounter, 4299 mSDsluCounter, 5467 mSDsCounter, 0 mSdLazyCounter, 96 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4313 SdHoareTripleChecker+Valid, 6844 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 96 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 13:24:35,328 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4313 Valid, 6844 Invalid, 103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 96 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 13:24:35,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16702 states. [2023-12-25 13:24:35,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16702 to 15934. [2023-12-25 13:24:35,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15934 states, 15546 states have (on average 1.4825035378875595) internal successors, (23047), 15546 states have internal predecessors, (23047), 386 states have call successors, (386), 1 states have call predecessors, (386), 1 states have return successors, (386), 386 states have call predecessors, (386), 386 states have call successors, (386) [2023-12-25 13:24:35,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15934 states to 15934 states and 23819 transitions. [2023-12-25 13:24:35,890 INFO L78 Accepts]: Start accepts. Automaton has 15934 states and 23819 transitions. Word has length 969 [2023-12-25 13:24:35,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 13:24:35,890 INFO L495 AbstractCegarLoop]: Abstraction has 15934 states and 23819 transitions. [2023-12-25 13:24:35,890 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 113.125) internal successors, (905), 8 states have internal predecessors, (905), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-25 13:24:35,890 INFO L276 IsEmpty]: Start isEmpty. Operand 15934 states and 23819 transitions. [2023-12-25 13:24:35,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 970 [2023-12-25 13:24:35,913 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 13:24:35,913 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 13:24:35,930 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2023-12-25 13:24:36,130 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable85,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-25 13:24:36,130 INFO L420 AbstractCegarLoop]: === Iteration 87 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 13:24:36,130 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 13:24:36,131 INFO L85 PathProgramCache]: Analyzing trace with hash -1793958377, now seen corresponding path program 1 times [2023-12-25 13:24:36,131 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-25 13:24:36,131 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1064149518] [2023-12-25 13:24:36,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 13:24:36,131 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-25 13:24:44,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:24:46,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-25 13:24:46,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:24:46,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2023-12-25 13:24:46,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:24:46,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2023-12-25 13:24:46,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:24:46,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2023-12-25 13:24:46,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:24:46,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2023-12-25 13:24:46,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:24:46,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2023-12-25 13:24:46,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:24:46,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2023-12-25 13:24:46,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:24:46,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 669 [2023-12-25 13:24:46,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:24:46,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 684 [2023-12-25 13:24:46,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:24:46,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 705 [2023-12-25 13:24:46,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:24:46,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 723 [2023-12-25 13:24:46,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:24:46,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 734 [2023-12-25 13:24:46,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:24:46,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 747 [2023-12-25 13:24:46,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:24:46,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 760 [2023-12-25 13:24:46,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:24:46,969 INFO L134 CoverageAnalysis]: Checked inductivity of 645 backedges. 280 proven. 1 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-25 13:24:46,969 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-25 13:24:46,969 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1064149518] [2023-12-25 13:24:46,969 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1064149518] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-25 13:24:46,969 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1193270596] [2023-12-25 13:24:46,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 13:24:46,970 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-25 13:24:46,970 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-25 13:24:46,971 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-25 13:24:46,997 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-12-25 13:24:48,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:24:48,068 INFO L262 TraceCheckSpWp]: Trace formula consists of 5896 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-25 13:24:48,079 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 13:24:49,075 INFO L134 CoverageAnalysis]: Checked inductivity of 645 backedges. 477 proven. 0 refuted. 0 times theorem prover too weak. 168 trivial. 0 not checked. [2023-12-25 13:24:49,076 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 13:24:49,076 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1193270596] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 13:24:49,076 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-25 13:24:49,076 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [9] total 11 [2023-12-25 13:24:49,076 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [929633006] [2023-12-25 13:24:49,076 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 13:24:49,077 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 13:24:49,077 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-25 13:24:49,078 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 13:24:49,078 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2023-12-25 13:24:49,078 INFO L87 Difference]: Start difference. First operand 15934 states and 23819 transitions. Second operand has 4 states, 4 states have (on average 226.25) internal successors, (905), 4 states have internal predecessors, (905), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-25 13:24:49,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 13:24:49,642 INFO L93 Difference]: Finished difference Result 18889 states and 28359 transitions. [2023-12-25 13:24:49,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 13:24:49,642 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 226.25) internal successors, (905), 4 states have internal predecessors, (905), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 969 [2023-12-25 13:24:49,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 13:24:49,657 INFO L225 Difference]: With dead ends: 18889 [2023-12-25 13:24:49,658 INFO L226 Difference]: Without dead ends: 15934 [2023-12-25 13:24:49,663 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1005 GetRequests, 995 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2023-12-25 13:24:49,664 INFO L413 NwaCegarLoop]: 1352 mSDtfsCounter, 926 mSDsluCounter, 1354 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 926 SdHoareTripleChecker+Valid, 2706 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 13:24:49,664 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [926 Valid, 2706 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 13:24:49,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15934 states. [2023-12-25 13:24:50,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15934 to 15934. [2023-12-25 13:24:50,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15934 states, 15546 states have (on average 1.4817959603756594) internal successors, (23036), 15546 states have internal predecessors, (23036), 386 states have call successors, (386), 1 states have call predecessors, (386), 1 states have return successors, (386), 386 states have call predecessors, (386), 386 states have call successors, (386) [2023-12-25 13:24:50,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15934 states to 15934 states and 23808 transitions. [2023-12-25 13:24:50,214 INFO L78 Accepts]: Start accepts. Automaton has 15934 states and 23808 transitions. Word has length 969 [2023-12-25 13:24:50,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 13:24:50,215 INFO L495 AbstractCegarLoop]: Abstraction has 15934 states and 23808 transitions. [2023-12-25 13:24:50,215 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 226.25) internal successors, (905), 4 states have internal predecessors, (905), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-25 13:24:50,215 INFO L276 IsEmpty]: Start isEmpty. Operand 15934 states and 23808 transitions. [2023-12-25 13:24:50,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 970 [2023-12-25 13:24:50,236 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 13:24:50,237 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 13:24:50,252 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-12-25 13:24:50,451 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable86,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-25 13:24:50,452 INFO L420 AbstractCegarLoop]: === Iteration 88 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 13:24:50,452 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 13:24:50,452 INFO L85 PathProgramCache]: Analyzing trace with hash -60914727, now seen corresponding path program 1 times [2023-12-25 13:24:50,452 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-25 13:24:50,453 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1975321078] [2023-12-25 13:24:50,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 13:24:50,453 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-25 13:24:59,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:25:01,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-25 13:25:01,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:25:01,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2023-12-25 13:25:01,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:25:01,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2023-12-25 13:25:01,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:25:01,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2023-12-25 13:25:01,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:25:01,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2023-12-25 13:25:01,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:25:01,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2023-12-25 13:25:01,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:25:01,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2023-12-25 13:25:01,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:25:01,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 669 [2023-12-25 13:25:01,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:25:01,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 684 [2023-12-25 13:25:01,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:25:01,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 705 [2023-12-25 13:25:01,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:25:01,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 723 [2023-12-25 13:25:01,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:25:01,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 734 [2023-12-25 13:25:01,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:25:01,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 747 [2023-12-25 13:25:01,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:25:01,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 760 [2023-12-25 13:25:01,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:25:01,554 INFO L134 CoverageAnalysis]: Checked inductivity of 645 backedges. 280 proven. 1 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-25 13:25:01,554 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-25 13:25:01,554 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1975321078] [2023-12-25 13:25:01,554 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1975321078] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-25 13:25:01,554 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1581084580] [2023-12-25 13:25:01,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 13:25:01,554 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-25 13:25:01,554 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-25 13:25:01,555 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-25 13:25:01,575 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-12-25 13:25:02,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:25:02,678 INFO L262 TraceCheckSpWp]: Trace formula consists of 5895 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-25 13:25:02,689 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 13:25:03,894 INFO L134 CoverageAnalysis]: Checked inductivity of 645 backedges. 477 proven. 0 refuted. 0 times theorem prover too weak. 168 trivial. 0 not checked. [2023-12-25 13:25:03,895 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 13:25:03,895 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1581084580] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 13:25:03,895 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-25 13:25:03,895 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [9] total 11 [2023-12-25 13:25:03,895 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [987989333] [2023-12-25 13:25:03,895 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 13:25:03,896 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 13:25:03,896 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-25 13:25:03,896 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 13:25:03,897 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2023-12-25 13:25:03,897 INFO L87 Difference]: Start difference. First operand 15934 states and 23808 transitions. Second operand has 4 states, 4 states have (on average 226.25) internal successors, (905), 4 states have internal predecessors, (905), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-25 13:25:04,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 13:25:04,731 INFO L93 Difference]: Finished difference Result 18230 states and 27313 transitions. [2023-12-25 13:25:04,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 13:25:04,731 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 226.25) internal successors, (905), 4 states have internal predecessors, (905), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 969 [2023-12-25 13:25:04,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 13:25:04,745 INFO L225 Difference]: With dead ends: 18230 [2023-12-25 13:25:04,746 INFO L226 Difference]: Without dead ends: 15934 [2023-12-25 13:25:04,751 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1005 GetRequests, 995 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2023-12-25 13:25:04,751 INFO L413 NwaCegarLoop]: 1081 mSDtfsCounter, 812 mSDsluCounter, 1083 mSDsCounter, 0 mSdLazyCounter, 609 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 812 SdHoareTripleChecker+Valid, 2164 SdHoareTripleChecker+Invalid, 609 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 609 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-25 13:25:04,751 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [812 Valid, 2164 Invalid, 609 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 609 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-25 13:25:04,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15934 states. [2023-12-25 13:25:05,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15934 to 15934. [2023-12-25 13:25:05,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15934 states, 15546 states have (on average 1.4814743342338865) internal successors, (23031), 15546 states have internal predecessors, (23031), 386 states have call successors, (386), 1 states have call predecessors, (386), 1 states have return successors, (386), 386 states have call predecessors, (386), 386 states have call successors, (386) [2023-12-25 13:25:05,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15934 states to 15934 states and 23803 transitions. [2023-12-25 13:25:05,302 INFO L78 Accepts]: Start accepts. Automaton has 15934 states and 23803 transitions. Word has length 969 [2023-12-25 13:25:05,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 13:25:05,303 INFO L495 AbstractCegarLoop]: Abstraction has 15934 states and 23803 transitions. [2023-12-25 13:25:05,303 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 226.25) internal successors, (905), 4 states have internal predecessors, (905), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-25 13:25:05,303 INFO L276 IsEmpty]: Start isEmpty. Operand 15934 states and 23803 transitions. [2023-12-25 13:25:05,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 970 [2023-12-25 13:25:05,324 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 13:25:05,325 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 13:25:05,342 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-12-25 13:25:05,539 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable87 [2023-12-25 13:25:05,539 INFO L420 AbstractCegarLoop]: === Iteration 89 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 13:25:05,540 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 13:25:05,540 INFO L85 PathProgramCache]: Analyzing trace with hash -225721897, now seen corresponding path program 1 times [2023-12-25 13:25:05,540 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-25 13:25:05,540 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1713232105] [2023-12-25 13:25:05,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 13:25:05,540 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-25 13:25:14,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:25:17,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-25 13:25:17,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:25:17,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2023-12-25 13:25:17,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:25:17,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2023-12-25 13:25:17,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:25:17,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2023-12-25 13:25:17,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:25:17,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2023-12-25 13:25:17,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:25:17,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2023-12-25 13:25:17,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:25:17,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2023-12-25 13:25:17,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:25:17,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 669 [2023-12-25 13:25:17,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:25:17,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 684 [2023-12-25 13:25:17,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:25:17,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 705 [2023-12-25 13:25:17,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:25:17,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 723 [2023-12-25 13:25:17,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:25:17,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 734 [2023-12-25 13:25:17,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:25:17,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 747 [2023-12-25 13:25:17,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:25:17,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 760 [2023-12-25 13:25:17,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:25:17,107 INFO L134 CoverageAnalysis]: Checked inductivity of 645 backedges. 280 proven. 1 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-25 13:25:17,107 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-25 13:25:17,107 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1713232105] [2023-12-25 13:25:17,107 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1713232105] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-25 13:25:17,107 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1333908078] [2023-12-25 13:25:17,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 13:25:17,107 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-25 13:25:17,108 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-25 13:25:17,108 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-25 13:25:17,110 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-12-25 13:25:18,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:25:18,252 INFO L262 TraceCheckSpWp]: Trace formula consists of 5894 conjuncts, 26 conjunts are in the unsatisfiable core [2023-12-25 13:25:18,267 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 13:25:19,033 INFO L134 CoverageAnalysis]: Checked inductivity of 645 backedges. 471 proven. 0 refuted. 0 times theorem prover too weak. 174 trivial. 0 not checked. [2023-12-25 13:25:19,034 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 13:25:19,034 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1333908078] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 13:25:19,034 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-25 13:25:19,034 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [9] total 16 [2023-12-25 13:25:19,034 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [484792236] [2023-12-25 13:25:19,034 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 13:25:19,035 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-25 13:25:19,035 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-25 13:25:19,036 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-25 13:25:19,036 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=197, Unknown=0, NotChecked=0, Total=240 [2023-12-25 13:25:19,036 INFO L87 Difference]: Start difference. First operand 15934 states and 23803 transitions. Second operand has 9 states, 9 states have (on average 100.22222222222223) internal successors, (902), 9 states have internal predecessors, (902), 3 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2023-12-25 13:25:21,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 13:25:21,274 INFO L93 Difference]: Finished difference Result 38134 states and 57280 transitions. [2023-12-25 13:25:21,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-25 13:25:21,274 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 100.22222222222223) internal successors, (902), 9 states have internal predecessors, (902), 3 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 969 [2023-12-25 13:25:21,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 13:25:21,304 INFO L225 Difference]: With dead ends: 38134 [2023-12-25 13:25:21,304 INFO L226 Difference]: Without dead ends: 34149 [2023-12-25 13:25:21,309 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1007 GetRequests, 990 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=60, Invalid=282, Unknown=0, NotChecked=0, Total=342 [2023-12-25 13:25:21,310 INFO L413 NwaCegarLoop]: 1562 mSDtfsCounter, 7247 mSDsluCounter, 5852 mSDsCounter, 0 mSdLazyCounter, 2173 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7258 SdHoareTripleChecker+Valid, 7414 SdHoareTripleChecker+Invalid, 2184 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 2173 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-12-25 13:25:21,310 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7258 Valid, 7414 Invalid, 2184 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 2173 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-12-25 13:25:21,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34149 states. [2023-12-25 13:25:22,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34149 to 27738. [2023-12-25 13:25:22,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27738 states, 26998 states have (on average 1.471960885991555) internal successors, (39740), 26998 states have internal predecessors, (39740), 738 states have call successors, (738), 1 states have call predecessors, (738), 1 states have return successors, (738), 738 states have call predecessors, (738), 738 states have call successors, (738) [2023-12-25 13:25:22,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27738 states to 27738 states and 41216 transitions. [2023-12-25 13:25:22,432 INFO L78 Accepts]: Start accepts. Automaton has 27738 states and 41216 transitions. Word has length 969 [2023-12-25 13:25:22,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 13:25:22,433 INFO L495 AbstractCegarLoop]: Abstraction has 27738 states and 41216 transitions. [2023-12-25 13:25:22,433 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 100.22222222222223) internal successors, (902), 9 states have internal predecessors, (902), 3 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2023-12-25 13:25:22,433 INFO L276 IsEmpty]: Start isEmpty. Operand 27738 states and 41216 transitions. [2023-12-25 13:25:22,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 970 [2023-12-25 13:25:22,471 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 13:25:22,471 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 13:25:22,489 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2023-12-25 13:25:22,674 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable88,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-25 13:25:22,675 INFO L420 AbstractCegarLoop]: === Iteration 90 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 13:25:22,675 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 13:25:22,675 INFO L85 PathProgramCache]: Analyzing trace with hash 1026458329, now seen corresponding path program 1 times [2023-12-25 13:25:22,675 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-25 13:25:22,675 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1515733823] [2023-12-25 13:25:22,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 13:25:22,675 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-25 13:25:30,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:25:32,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-25 13:25:32,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:25:32,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2023-12-25 13:25:32,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:25:32,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2023-12-25 13:25:32,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:25:32,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2023-12-25 13:25:32,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:25:32,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2023-12-25 13:25:32,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:25:32,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2023-12-25 13:25:32,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:25:32,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2023-12-25 13:25:32,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:25:32,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 669 [2023-12-25 13:25:32,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:25:32,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 684 [2023-12-25 13:25:32,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:25:32,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 705 [2023-12-25 13:25:32,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:25:32,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 723 [2023-12-25 13:25:32,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:25:32,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 734 [2023-12-25 13:25:32,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:25:32,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 747 [2023-12-25 13:25:32,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:25:32,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 760 [2023-12-25 13:25:32,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:25:32,467 INFO L134 CoverageAnalysis]: Checked inductivity of 645 backedges. 249 proven. 1 refuted. 0 times theorem prover too weak. 395 trivial. 0 not checked. [2023-12-25 13:25:32,467 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-25 13:25:32,467 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1515733823] [2023-12-25 13:25:32,467 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1515733823] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-25 13:25:32,467 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [235042672] [2023-12-25 13:25:32,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 13:25:32,467 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-25 13:25:32,468 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-25 13:25:32,468 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-25 13:25:32,484 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-12-25 13:25:33,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:25:33,831 INFO L262 TraceCheckSpWp]: Trace formula consists of 5895 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-25 13:25:33,842 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 13:25:34,513 INFO L134 CoverageAnalysis]: Checked inductivity of 645 backedges. 477 proven. 0 refuted. 0 times theorem prover too weak. 168 trivial. 0 not checked. [2023-12-25 13:25:34,513 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 13:25:34,513 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [235042672] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 13:25:34,513 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-25 13:25:34,514 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [8] total 12 [2023-12-25 13:25:34,514 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1035919480] [2023-12-25 13:25:34,514 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 13:25:34,514 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-25 13:25:34,514 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-25 13:25:34,515 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-25 13:25:34,515 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2023-12-25 13:25:34,515 INFO L87 Difference]: Start difference. First operand 27738 states and 41216 transitions. Second operand has 6 states, 6 states have (on average 150.83333333333334) internal successors, (905), 6 states have internal predecessors, (905), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-25 13:25:35,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 13:25:35,566 INFO L93 Difference]: Finished difference Result 41447 states and 62845 transitions. [2023-12-25 13:25:35,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-25 13:25:35,567 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 150.83333333333334) internal successors, (905), 6 states have internal predecessors, (905), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 969 [2023-12-25 13:25:35,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 13:25:35,596 INFO L225 Difference]: With dead ends: 41447 [2023-12-25 13:25:35,596 INFO L226 Difference]: Without dead ends: 27738 [2023-12-25 13:25:35,610 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1005 GetRequests, 993 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=145, Unknown=0, NotChecked=0, Total=182 [2023-12-25 13:25:35,611 INFO L413 NwaCegarLoop]: 1333 mSDtfsCounter, 2107 mSDsluCounter, 2650 mSDsCounter, 0 mSdLazyCounter, 154 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2114 SdHoareTripleChecker+Valid, 3983 SdHoareTripleChecker+Invalid, 156 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 154 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 13:25:35,611 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2114 Valid, 3983 Invalid, 156 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 154 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 13:25:35,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27738 states. [2023-12-25 13:25:36,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27738 to 27738. [2023-12-25 13:25:36,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27738 states, 26998 states have (on average 1.4697755389288096) internal successors, (39681), 26998 states have internal predecessors, (39681), 738 states have call successors, (738), 1 states have call predecessors, (738), 1 states have return successors, (738), 738 states have call predecessors, (738), 738 states have call successors, (738) [2023-12-25 13:25:36,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27738 states to 27738 states and 41157 transitions. [2023-12-25 13:25:36,723 INFO L78 Accepts]: Start accepts. Automaton has 27738 states and 41157 transitions. Word has length 969 [2023-12-25 13:25:36,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 13:25:36,724 INFO L495 AbstractCegarLoop]: Abstraction has 27738 states and 41157 transitions. [2023-12-25 13:25:36,724 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 150.83333333333334) internal successors, (905), 6 states have internal predecessors, (905), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-25 13:25:36,724 INFO L276 IsEmpty]: Start isEmpty. Operand 27738 states and 41157 transitions. [2023-12-25 13:25:36,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 970 [2023-12-25 13:25:36,764 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 13:25:36,764 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 13:25:36,785 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2023-12-25 13:25:36,985 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable89 [2023-12-25 13:25:36,985 INFO L420 AbstractCegarLoop]: === Iteration 91 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 13:25:36,985 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 13:25:36,985 INFO L85 PathProgramCache]: Analyzing trace with hash -720612965, now seen corresponding path program 1 times [2023-12-25 13:25:36,986 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-25 13:25:36,986 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [540930444] [2023-12-25 13:25:36,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 13:25:36,986 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-25 13:25:44,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:25:46,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-25 13:25:46,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:25:46,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2023-12-25 13:25:46,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:25:46,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2023-12-25 13:25:46,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:25:46,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2023-12-25 13:25:46,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:25:46,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2023-12-25 13:25:46,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:25:46,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2023-12-25 13:25:46,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:25:46,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2023-12-25 13:25:46,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:25:46,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 669 [2023-12-25 13:25:46,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:25:46,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 684 [2023-12-25 13:25:46,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:25:46,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 705 [2023-12-25 13:25:46,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:25:46,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 723 [2023-12-25 13:25:46,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:25:46,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 734 [2023-12-25 13:25:46,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:25:46,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 747 [2023-12-25 13:25:46,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:25:46,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 760 [2023-12-25 13:25:46,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:25:46,755 INFO L134 CoverageAnalysis]: Checked inductivity of 645 backedges. 249 proven. 1 refuted. 0 times theorem prover too weak. 395 trivial. 0 not checked. [2023-12-25 13:25:46,755 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-25 13:25:46,755 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [540930444] [2023-12-25 13:25:46,755 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [540930444] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-25 13:25:46,755 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [910934503] [2023-12-25 13:25:46,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 13:25:46,755 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-25 13:25:46,756 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-25 13:25:46,785 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-25 13:25:46,787 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-12-25 13:25:48,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:25:48,222 INFO L262 TraceCheckSpWp]: Trace formula consists of 5894 conjuncts, 41 conjunts are in the unsatisfiable core [2023-12-25 13:25:48,234 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 13:25:48,646 INFO L134 CoverageAnalysis]: Checked inductivity of 645 backedges. 249 proven. 0 refuted. 0 times theorem prover too weak. 396 trivial. 0 not checked. [2023-12-25 13:25:48,646 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 13:25:48,646 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [910934503] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 13:25:48,646 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-25 13:25:48,646 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [8] total 14 [2023-12-25 13:25:48,646 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [88105137] [2023-12-25 13:25:48,646 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 13:25:48,647 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-25 13:25:48,647 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-25 13:25:48,648 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-25 13:25:48,648 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=142, Unknown=0, NotChecked=0, Total=182 [2023-12-25 13:25:48,648 INFO L87 Difference]: Start difference. First operand 27738 states and 41157 transitions. Second operand has 8 states, 8 states have (on average 87.5) internal successors, (700), 8 states have internal predecessors, (700), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-25 13:25:50,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 13:25:50,351 INFO L93 Difference]: Finished difference Result 44069 states and 66261 transitions. [2023-12-25 13:25:50,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-25 13:25:50,352 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 87.5) internal successors, (700), 8 states have internal predecessors, (700), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 969 [2023-12-25 13:25:50,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 13:25:50,425 INFO L225 Difference]: With dead ends: 44069 [2023-12-25 13:25:50,426 INFO L226 Difference]: Without dead ends: 27946 [2023-12-25 13:25:50,431 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1008 GetRequests, 991 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=77, Invalid=265, Unknown=0, NotChecked=0, Total=342 [2023-12-25 13:25:50,432 INFO L413 NwaCegarLoop]: 1143 mSDtfsCounter, 3494 mSDsluCounter, 3897 mSDsCounter, 0 mSdLazyCounter, 1555 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3498 SdHoareTripleChecker+Valid, 5040 SdHoareTripleChecker+Invalid, 1568 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 1555 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-25 13:25:50,432 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3498 Valid, 5040 Invalid, 1568 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 1555 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-25 13:25:50,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27946 states. [2023-12-25 13:25:51,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27946 to 27894. [2023-12-25 13:25:51,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27894 states, 27154 states have (on average 1.465161670472122) internal successors, (39785), 27154 states have internal predecessors, (39785), 738 states have call successors, (738), 1 states have call predecessors, (738), 1 states have return successors, (738), 738 states have call predecessors, (738), 738 states have call successors, (738) [2023-12-25 13:25:51,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27894 states to 27894 states and 41261 transitions. [2023-12-25 13:25:51,530 INFO L78 Accepts]: Start accepts. Automaton has 27894 states and 41261 transitions. Word has length 969 [2023-12-25 13:25:51,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 13:25:51,530 INFO L495 AbstractCegarLoop]: Abstraction has 27894 states and 41261 transitions. [2023-12-25 13:25:51,530 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 87.5) internal successors, (700), 8 states have internal predecessors, (700), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-25 13:25:51,530 INFO L276 IsEmpty]: Start isEmpty. Operand 27894 states and 41261 transitions. [2023-12-25 13:25:51,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 970 [2023-12-25 13:25:51,570 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 13:25:51,570 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 13:25:51,590 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2023-12-25 13:25:51,784 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable90,12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-25 13:25:51,784 INFO L420 AbstractCegarLoop]: === Iteration 92 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 13:25:51,785 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 13:25:51,785 INFO L85 PathProgramCache]: Analyzing trace with hash 215903767, now seen corresponding path program 1 times [2023-12-25 13:25:51,785 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-25 13:25:51,785 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1331405188] [2023-12-25 13:25:51,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 13:25:51,785 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-25 13:26:00,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:26:02,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-25 13:26:02,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:26:02,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2023-12-25 13:26:02,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:26:02,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2023-12-25 13:26:02,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:26:02,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2023-12-25 13:26:02,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:26:02,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2023-12-25 13:26:02,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:26:02,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2023-12-25 13:26:02,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:26:02,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2023-12-25 13:26:02,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:26:02,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 669 [2023-12-25 13:26:02,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:26:02,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 684 [2023-12-25 13:26:02,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:26:02,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 705 [2023-12-25 13:26:02,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:26:02,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 723 [2023-12-25 13:26:02,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:26:02,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 734 [2023-12-25 13:26:02,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:26:02,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 747 [2023-12-25 13:26:02,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:26:02,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 760 [2023-12-25 13:26:02,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:26:02,376 INFO L134 CoverageAnalysis]: Checked inductivity of 645 backedges. 249 proven. 1 refuted. 0 times theorem prover too weak. 395 trivial. 0 not checked. [2023-12-25 13:26:02,376 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-25 13:26:02,376 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1331405188] [2023-12-25 13:26:02,376 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1331405188] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-25 13:26:02,376 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [889438047] [2023-12-25 13:26:02,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 13:26:02,376 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-25 13:26:02,376 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-25 13:26:02,377 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-25 13:26:02,379 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-12-25 13:26:04,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:26:05,025 INFO L262 TraceCheckSpWp]: Trace formula consists of 5896 conjuncts, 147 conjunts are in the unsatisfiable core [2023-12-25 13:26:05,040 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 13:26:09,779 INFO L134 CoverageAnalysis]: Checked inductivity of 645 backedges. 365 proven. 78 refuted. 0 times theorem prover too weak. 202 trivial. 0 not checked. [2023-12-25 13:26:09,780 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 13:26:16,245 INFO L134 CoverageAnalysis]: Checked inductivity of 645 backedges. 218 proven. 102 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2023-12-25 13:26:16,246 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [889438047] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 13:26:16,246 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-25 13:26:16,246 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 26, 30] total 59 [2023-12-25 13:26:16,246 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1271245519] [2023-12-25 13:26:16,246 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-25 13:26:16,250 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 59 states [2023-12-25 13:26:16,250 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-25 13:26:16,252 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 59 interpolants. [2023-12-25 13:26:16,253 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=693, Invalid=2729, Unknown=0, NotChecked=0, Total=3422 [2023-12-25 13:26:16,253 INFO L87 Difference]: Start difference. First operand 27894 states and 41261 transitions. Second operand has 59 states, 57 states have (on average 39.59649122807018) internal successors, (2257), 59 states have internal predecessors, (2257), 14 states have call successors, (39), 2 states have call predecessors, (39), 3 states have return successors, (39), 12 states have call predecessors, (39), 14 states have call successors, (39) [2023-12-25 13:29:05,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 13:29:05,212 INFO L93 Difference]: Finished difference Result 715616 states and 1096738 transitions. [2023-12-25 13:29:05,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 1198 states. [2023-12-25 13:29:05,213 INFO L78 Accepts]: Start accepts. Automaton has has 59 states, 57 states have (on average 39.59649122807018) internal successors, (2257), 59 states have internal predecessors, (2257), 14 states have call successors, (39), 2 states have call predecessors, (39), 3 states have return successors, (39), 12 states have call predecessors, (39), 14 states have call successors, (39) Word has length 969 [2023-12-25 13:29:05,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 13:29:06,108 INFO L225 Difference]: With dead ends: 715616 [2023-12-25 13:29:06,108 INFO L226 Difference]: Without dead ends: 699481 [2023-12-25 13:29:06,308 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3158 GetRequests, 1914 SyntacticMatches, 0 SemanticMatches, 1244 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 740456 ImplicationChecksByTransitivity, 69.4s TimeCoverageRelationStatistics Valid=126889, Invalid=1424381, Unknown=0, NotChecked=0, Total=1551270 [2023-12-25 13:29:06,308 INFO L413 NwaCegarLoop]: 12049 mSDtfsCounter, 233071 mSDsluCounter, 239867 mSDsCounter, 0 mSdLazyCounter, 106080 mSolverCounterSat, 1542 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 45.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 233082 SdHoareTripleChecker+Valid, 251916 SdHoareTripleChecker+Invalid, 107622 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.0s SdHoareTripleChecker+Time, 1542 IncrementalHoareTripleChecker+Valid, 106080 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 52.6s IncrementalHoareTripleChecker+Time [2023-12-25 13:29:06,308 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [233082 Valid, 251916 Invalid, 107622 Unknown, 0 Unchecked, 1.0s Time], IncrementalHoareTripleChecker [1542 Valid, 106080 Invalid, 0 Unknown, 0 Unchecked, 52.6s Time] [2023-12-25 13:29:06,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 699481 states. [2023-12-25 13:29:11,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 699481 to 36387. [2023-12-25 13:29:11,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36387 states, 35127 states have (on average 1.4346514077490249) internal successors, (50395), 35127 states have internal predecessors, (50395), 1258 states have call successors, (1258), 1 states have call predecessors, (1258), 1 states have return successors, (1258), 1258 states have call predecessors, (1258), 1258 states have call successors, (1258) [2023-12-25 13:29:11,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36387 states to 36387 states and 52911 transitions. [2023-12-25 13:29:11,469 INFO L78 Accepts]: Start accepts. Automaton has 36387 states and 52911 transitions. Word has length 969 [2023-12-25 13:29:11,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 13:29:11,470 INFO L495 AbstractCegarLoop]: Abstraction has 36387 states and 52911 transitions. [2023-12-25 13:29:11,470 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 59 states, 57 states have (on average 39.59649122807018) internal successors, (2257), 59 states have internal predecessors, (2257), 14 states have call successors, (39), 2 states have call predecessors, (39), 3 states have return successors, (39), 12 states have call predecessors, (39), 14 states have call successors, (39) [2023-12-25 13:29:11,470 INFO L276 IsEmpty]: Start isEmpty. Operand 36387 states and 52911 transitions. [2023-12-25 13:29:11,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 971 [2023-12-25 13:29:11,517 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 13:29:11,519 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 13:29:11,539 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2023-12-25 13:29:11,738 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable91,13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-25 13:29:11,738 INFO L420 AbstractCegarLoop]: === Iteration 93 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 13:29:11,738 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 13:29:11,739 INFO L85 PathProgramCache]: Analyzing trace with hash -93872007, now seen corresponding path program 1 times [2023-12-25 13:29:11,739 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-25 13:29:11,739 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1254830551] [2023-12-25 13:29:11,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 13:29:11,739 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-25 13:29:19,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:29:21,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-25 13:29:21,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:29:21,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2023-12-25 13:29:21,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:29:21,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2023-12-25 13:29:21,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:29:21,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2023-12-25 13:29:21,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:29:21,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2023-12-25 13:29:21,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:29:21,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2023-12-25 13:29:21,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:29:21,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2023-12-25 13:29:21,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:29:21,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 669 [2023-12-25 13:29:21,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:29:21,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 684 [2023-12-25 13:29:21,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:29:21,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 705 [2023-12-25 13:29:21,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:29:21,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 723 [2023-12-25 13:29:21,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:29:21,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 734 [2023-12-25 13:29:21,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:29:21,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 748 [2023-12-25 13:29:21,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:29:21,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 761 [2023-12-25 13:29:21,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:29:21,858 INFO L134 CoverageAnalysis]: Checked inductivity of 643 backedges. 278 proven. 1 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-25 13:29:21,858 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-25 13:29:21,859 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1254830551] [2023-12-25 13:29:21,859 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1254830551] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-25 13:29:21,859 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [399554916] [2023-12-25 13:29:21,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 13:29:21,859 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-25 13:29:21,859 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-25 13:29:21,861 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-25 13:29:21,862 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2023-12-25 13:29:22,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:29:22,952 INFO L262 TraceCheckSpWp]: Trace formula consists of 5899 conjuncts, 17 conjunts are in the unsatisfiable core [2023-12-25 13:29:22,964 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 13:29:23,094 INFO L134 CoverageAnalysis]: Checked inductivity of 643 backedges. 349 proven. 4 refuted. 0 times theorem prover too weak. 290 trivial. 0 not checked. [2023-12-25 13:29:23,095 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 13:29:23,175 INFO L134 CoverageAnalysis]: Checked inductivity of 643 backedges. 253 proven. 6 refuted. 0 times theorem prover too weak. 384 trivial. 0 not checked. [2023-12-25 13:29:23,175 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [399554916] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 13:29:23,175 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-25 13:29:23,175 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8, 6] total 18 [2023-12-25 13:29:23,175 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1920624809] [2023-12-25 13:29:23,175 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-25 13:29:23,176 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-12-25 13:29:23,176 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-25 13:29:23,177 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-12-25 13:29:23,178 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=262, Unknown=0, NotChecked=0, Total=306 [2023-12-25 13:29:23,178 INFO L87 Difference]: Start difference. First operand 36387 states and 52911 transitions. Second operand has 18 states, 16 states have (on average 102.3125) internal successors, (1637), 18 states have internal predecessors, (1637), 7 states have call successors, (25), 2 states have call predecessors, (25), 3 states have return successors, (25), 5 states have call predecessors, (25), 7 states have call successors, (25) [2023-12-25 13:29:27,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 13:29:27,290 INFO L93 Difference]: Finished difference Result 62765 states and 92514 transitions. [2023-12-25 13:29:27,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2023-12-25 13:29:27,291 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 16 states have (on average 102.3125) internal successors, (1637), 18 states have internal predecessors, (1637), 7 states have call successors, (25), 2 states have call predecessors, (25), 3 states have return successors, (25), 5 states have call predecessors, (25), 7 states have call successors, (25) Word has length 970 [2023-12-25 13:29:27,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 13:29:27,355 INFO L225 Difference]: With dead ends: 62765 [2023-12-25 13:29:27,356 INFO L226 Difference]: Without dead ends: 43673 [2023-12-25 13:29:27,378 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2014 GetRequests, 1967 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 443 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=417, Invalid=1935, Unknown=0, NotChecked=0, Total=2352 [2023-12-25 13:29:27,380 INFO L413 NwaCegarLoop]: 2793 mSDtfsCounter, 7691 mSDsluCounter, 29017 mSDsCounter, 0 mSdLazyCounter, 1144 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7691 SdHoareTripleChecker+Valid, 31810 SdHoareTripleChecker+Invalid, 1181 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 1144 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-25 13:29:27,380 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7691 Valid, 31810 Invalid, 1181 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 1144 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-25 13:29:27,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43673 states. [2023-12-25 13:29:29,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43673 to 37003. [2023-12-25 13:29:29,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37003 states, 35707 states have (on average 1.427339177192147) internal successors, (50966), 35707 states have internal predecessors, (50966), 1294 states have call successors, (1294), 1 states have call predecessors, (1294), 1 states have return successors, (1294), 1294 states have call predecessors, (1294), 1294 states have call successors, (1294) [2023-12-25 13:29:29,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37003 states to 37003 states and 53554 transitions. [2023-12-25 13:29:29,592 INFO L78 Accepts]: Start accepts. Automaton has 37003 states and 53554 transitions. Word has length 970 [2023-12-25 13:29:29,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 13:29:29,592 INFO L495 AbstractCegarLoop]: Abstraction has 37003 states and 53554 transitions. [2023-12-25 13:29:29,593 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 16 states have (on average 102.3125) internal successors, (1637), 18 states have internal predecessors, (1637), 7 states have call successors, (25), 2 states have call predecessors, (25), 3 states have return successors, (25), 5 states have call predecessors, (25), 7 states have call successors, (25) [2023-12-25 13:29:29,593 INFO L276 IsEmpty]: Start isEmpty. Operand 37003 states and 53554 transitions. [2023-12-25 13:29:29,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 972 [2023-12-25 13:29:29,640 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 13:29:29,640 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 13:29:29,658 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2023-12-25 13:29:29,846 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable92 [2023-12-25 13:29:29,846 INFO L420 AbstractCegarLoop]: === Iteration 94 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 13:29:29,846 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 13:29:29,846 INFO L85 PathProgramCache]: Analyzing trace with hash -1286176827, now seen corresponding path program 1 times [2023-12-25 13:29:29,847 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-25 13:29:29,847 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1714477894] [2023-12-25 13:29:29,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 13:29:29,847 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-25 13:29:37,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:29:39,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-25 13:29:39,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:29:39,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2023-12-25 13:29:39,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:29:39,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2023-12-25 13:29:39,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:29:39,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2023-12-25 13:29:39,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:29:39,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2023-12-25 13:29:39,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:29:39,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2023-12-25 13:29:39,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:29:39,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2023-12-25 13:29:39,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:29:39,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 669 [2023-12-25 13:29:39,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:29:39,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 684 [2023-12-25 13:29:39,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:29:39,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 705 [2023-12-25 13:29:39,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:29:39,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 723 [2023-12-25 13:29:39,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:29:39,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 735 [2023-12-25 13:29:39,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:29:39,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 749 [2023-12-25 13:29:39,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:29:39,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 762 [2023-12-25 13:29:39,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:29:39,779 INFO L134 CoverageAnalysis]: Checked inductivity of 645 backedges. 280 proven. 1 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-25 13:29:39,779 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-25 13:29:39,779 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1714477894] [2023-12-25 13:29:39,779 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1714477894] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-25 13:29:39,779 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1852570249] [2023-12-25 13:29:39,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 13:29:39,780 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-25 13:29:39,780 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-25 13:29:39,781 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-25 13:29:39,783 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2023-12-25 13:29:40,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:29:40,834 INFO L262 TraceCheckSpWp]: Trace formula consists of 5903 conjuncts, 17 conjunts are in the unsatisfiable core [2023-12-25 13:29:40,844 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 13:29:40,967 INFO L134 CoverageAnalysis]: Checked inductivity of 645 backedges. 242 proven. 4 refuted. 0 times theorem prover too weak. 399 trivial. 0 not checked. [2023-12-25 13:29:40,967 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 13:29:41,044 INFO L134 CoverageAnalysis]: Checked inductivity of 645 backedges. 242 proven. 0 refuted. 0 times theorem prover too weak. 403 trivial. 0 not checked. [2023-12-25 13:29:41,045 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1852570249] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-25 13:29:41,045 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2023-12-25 13:29:41,045 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [9, 8] total 18 [2023-12-25 13:29:41,045 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [700084863] [2023-12-25 13:29:41,045 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 13:29:41,046 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-25 13:29:41,046 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-25 13:29:41,046 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-25 13:29:41,046 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=262, Unknown=0, NotChecked=0, Total=306 [2023-12-25 13:29:41,047 INFO L87 Difference]: Start difference. First operand 37003 states and 53554 transitions. Second operand has 6 states, 5 states have (on average 168.2) internal successors, (841), 6 states have internal predecessors, (841), 2 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-25 13:29:43,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 13:29:43,066 INFO L93 Difference]: Finished difference Result 54555 states and 80353 transitions. [2023-12-25 13:29:43,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-25 13:29:43,067 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 168.2) internal successors, (841), 6 states have internal predecessors, (841), 2 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 971 [2023-12-25 13:29:43,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 13:29:43,101 INFO L225 Difference]: With dead ends: 54555 [2023-12-25 13:29:43,101 INFO L226 Difference]: Without dead ends: 37003 [2023-12-25 13:29:43,107 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1976 GetRequests, 1960 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=262, Unknown=0, NotChecked=0, Total=306 [2023-12-25 13:29:43,108 INFO L413 NwaCegarLoop]: 1369 mSDtfsCounter, 0 mSDsluCounter, 5455 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 6824 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 13:29:43,108 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 6824 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 13:29:43,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37003 states. [2023-12-25 13:29:45,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37003 to 36967. [2023-12-25 13:29:45,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36967 states, 35671 states have (on average 1.4272658462056012) internal successors, (50912), 35671 states have internal predecessors, (50912), 1294 states have call successors, (1294), 1 states have call predecessors, (1294), 1 states have return successors, (1294), 1294 states have call predecessors, (1294), 1294 states have call successors, (1294) [2023-12-25 13:29:45,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36967 states to 36967 states and 53500 transitions. [2023-12-25 13:29:45,215 INFO L78 Accepts]: Start accepts. Automaton has 36967 states and 53500 transitions. Word has length 971 [2023-12-25 13:29:45,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 13:29:45,216 INFO L495 AbstractCegarLoop]: Abstraction has 36967 states and 53500 transitions. [2023-12-25 13:29:45,216 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 168.2) internal successors, (841), 6 states have internal predecessors, (841), 2 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-25 13:29:45,216 INFO L276 IsEmpty]: Start isEmpty. Operand 36967 states and 53500 transitions. [2023-12-25 13:29:45,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 973 [2023-12-25 13:29:45,262 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 13:29:45,263 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 13:29:45,278 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2023-12-25 13:29:45,475 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable93,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-25 13:29:45,475 INFO L420 AbstractCegarLoop]: === Iteration 95 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 13:29:45,476 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 13:29:45,476 INFO L85 PathProgramCache]: Analyzing trace with hash 1772123687, now seen corresponding path program 1 times [2023-12-25 13:29:45,476 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-25 13:29:45,476 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1357551470] [2023-12-25 13:29:45,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 13:29:45,476 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-25 13:29:53,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:29:55,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-25 13:29:55,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:29:55,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2023-12-25 13:29:55,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:29:55,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2023-12-25 13:29:55,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:29:55,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2023-12-25 13:29:55,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:29:55,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2023-12-25 13:29:55,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:29:55,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2023-12-25 13:29:55,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:29:55,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2023-12-25 13:29:55,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:29:55,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 669 [2023-12-25 13:29:55,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:29:55,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 684 [2023-12-25 13:29:55,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:29:55,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 705 [2023-12-25 13:29:55,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:29:55,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 723 [2023-12-25 13:29:55,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:29:55,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 735 [2023-12-25 13:29:55,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:29:55,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 749 [2023-12-25 13:29:55,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:29:55,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 763 [2023-12-25 13:29:55,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:29:55,969 INFO L134 CoverageAnalysis]: Checked inductivity of 646 backedges. 281 proven. 1 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-25 13:29:55,969 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-25 13:29:55,970 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1357551470] [2023-12-25 13:29:55,970 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1357551470] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-25 13:29:55,970 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [303084755] [2023-12-25 13:29:55,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 13:29:55,970 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-25 13:29:55,970 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-25 13:29:55,971 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-25 13:29:55,974 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2023-12-25 13:29:58,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:29:58,969 INFO L262 TraceCheckSpWp]: Trace formula consists of 5907 conjuncts, 49 conjunts are in the unsatisfiable core [2023-12-25 13:29:58,982 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 13:30:00,251 INFO L134 CoverageAnalysis]: Checked inductivity of 646 backedges. 6 proven. 276 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-25 13:30:00,252 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 13:30:00,635 INFO L134 CoverageAnalysis]: Checked inductivity of 646 backedges. 282 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-25 13:30:00,635 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [303084755] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-25 13:30:00,635 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2023-12-25 13:30:00,636 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [9, 17] total 29 [2023-12-25 13:30:00,636 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [426591870] [2023-12-25 13:30:00,636 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 13:30:00,636 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-25 13:30:00,636 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-25 13:30:00,637 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-25 13:30:00,637 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=89, Invalid=723, Unknown=0, NotChecked=0, Total=812 [2023-12-25 13:30:00,637 INFO L87 Difference]: Start difference. First operand 36967 states and 53500 transitions. Second operand has 7 states, 7 states have (on average 129.28571428571428) internal successors, (905), 7 states have internal predecessors, (905), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-25 13:30:04,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 13:30:04,076 INFO L93 Difference]: Finished difference Result 55999 states and 81456 transitions. [2023-12-25 13:30:04,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-25 13:30:04,077 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 129.28571428571428) internal successors, (905), 7 states have internal predecessors, (905), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 972 [2023-12-25 13:30:04,078 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 13:30:04,136 INFO L225 Difference]: With dead ends: 55999 [2023-12-25 13:30:04,136 INFO L226 Difference]: Without dead ends: 51819 [2023-12-25 13:30:04,153 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1989 GetRequests, 1953 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 355 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=148, Invalid=1258, Unknown=0, NotChecked=0, Total=1406 [2023-12-25 13:30:04,154 INFO L413 NwaCegarLoop]: 2618 mSDtfsCounter, 5731 mSDsluCounter, 11692 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5738 SdHoareTripleChecker+Valid, 14310 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 13:30:04,154 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5738 Valid, 14310 Invalid, 98 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 13:30:04,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51819 states. [2023-12-25 13:30:06,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51819 to 40525. [2023-12-25 13:30:06,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40525 states, 39087 states have (on average 1.425793742164914) internal successors, (55730), 39087 states have internal predecessors, (55730), 1436 states have call successors, (1436), 1 states have call predecessors, (1436), 1 states have return successors, (1436), 1436 states have call predecessors, (1436), 1436 states have call successors, (1436) [2023-12-25 13:30:06,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40525 states to 40525 states and 58602 transitions. [2023-12-25 13:30:06,878 INFO L78 Accepts]: Start accepts. Automaton has 40525 states and 58602 transitions. Word has length 972 [2023-12-25 13:30:06,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 13:30:06,879 INFO L495 AbstractCegarLoop]: Abstraction has 40525 states and 58602 transitions. [2023-12-25 13:30:06,879 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 129.28571428571428) internal successors, (905), 7 states have internal predecessors, (905), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-25 13:30:06,879 INFO L276 IsEmpty]: Start isEmpty. Operand 40525 states and 58602 transitions. [2023-12-25 13:30:06,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 973 [2023-12-25 13:30:06,929 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 13:30:06,929 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 13:30:06,948 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2023-12-25 13:30:07,148 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable94,16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-25 13:30:07,148 INFO L420 AbstractCegarLoop]: === Iteration 96 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 13:30:07,148 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 13:30:07,149 INFO L85 PathProgramCache]: Analyzing trace with hash 1379096677, now seen corresponding path program 1 times [2023-12-25 13:30:07,149 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-25 13:30:07,149 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1033506141] [2023-12-25 13:30:07,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 13:30:07,149 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-25 13:30:14,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:30:17,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-25 13:30:17,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:30:17,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2023-12-25 13:30:17,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:30:17,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2023-12-25 13:30:17,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:30:17,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2023-12-25 13:30:17,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:30:17,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2023-12-25 13:30:17,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:30:17,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2023-12-25 13:30:17,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:30:17,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2023-12-25 13:30:17,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:30:17,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 669 [2023-12-25 13:30:17,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:30:17,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 684 [2023-12-25 13:30:17,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:30:17,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 705 [2023-12-25 13:30:17,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:30:17,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 723 [2023-12-25 13:30:17,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:30:17,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 735 [2023-12-25 13:30:17,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:30:17,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 749 [2023-12-25 13:30:17,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:30:17,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 763 [2023-12-25 13:30:17,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:30:17,280 INFO L134 CoverageAnalysis]: Checked inductivity of 646 backedges. 281 proven. 1 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-25 13:30:17,280 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-25 13:30:17,280 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1033506141] [2023-12-25 13:30:17,280 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1033506141] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-25 13:30:17,280 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [555209660] [2023-12-25 13:30:17,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 13:30:17,280 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-25 13:30:17,281 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-25 13:30:17,281 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-25 13:30:17,283 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2023-12-25 13:30:21,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:30:21,373 INFO L262 TraceCheckSpWp]: Trace formula consists of 5908 conjuncts, 67 conjunts are in the unsatisfiable core [2023-12-25 13:30:21,386 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 13:30:23,231 INFO L134 CoverageAnalysis]: Checked inductivity of 646 backedges. 260 proven. 74 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2023-12-25 13:30:23,231 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 13:30:23,750 INFO L134 CoverageAnalysis]: Checked inductivity of 646 backedges. 282 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-25 13:30:23,750 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [555209660] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-25 13:30:23,750 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2023-12-25 13:30:23,750 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [9, 19] total 34 [2023-12-25 13:30:23,751 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1034466672] [2023-12-25 13:30:23,751 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 13:30:23,752 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-12-25 13:30:23,752 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-25 13:30:23,755 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-12-25 13:30:23,755 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=176, Invalid=946, Unknown=0, NotChecked=0, Total=1122 [2023-12-25 13:30:23,755 INFO L87 Difference]: Start difference. First operand 40525 states and 58602 transitions. Second operand has 12 states, 12 states have (on average 75.41666666666667) internal successors, (905), 12 states have internal predecessors, (905), 5 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 5 states have call predecessors, (14), 5 states have call successors, (14) [2023-12-25 13:30:30,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 13:30:30,819 INFO L93 Difference]: Finished difference Result 101163 states and 149453 transitions. [2023-12-25 13:30:30,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2023-12-25 13:30:30,819 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 75.41666666666667) internal successors, (905), 12 states have internal predecessors, (905), 5 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 5 states have call predecessors, (14), 5 states have call successors, (14) Word has length 972 [2023-12-25 13:30:30,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 13:30:30,915 INFO L225 Difference]: With dead ends: 101163 [2023-12-25 13:30:30,915 INFO L226 Difference]: Without dead ends: 93425 [2023-12-25 13:30:30,937 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2026 GetRequests, 1957 SyntacticMatches, 0 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1780 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=675, Invalid=4295, Unknown=0, NotChecked=0, Total=4970 [2023-12-25 13:30:30,937 INFO L413 NwaCegarLoop]: 4834 mSDtfsCounter, 23020 mSDsluCounter, 29677 mSDsCounter, 0 mSdLazyCounter, 930 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23034 SdHoareTripleChecker+Valid, 34511 SdHoareTripleChecker+Invalid, 995 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 930 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-25 13:30:30,937 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [23034 Valid, 34511 Invalid, 995 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [65 Valid, 930 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-25 13:30:30,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93425 states. [2023-12-25 13:30:34,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93425 to 42633. [2023-12-25 13:30:34,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42633 states, 41107 states have (on average 1.4253776729024255) internal successors, (58593), 41107 states have internal predecessors, (58593), 1524 states have call successors, (1524), 1 states have call predecessors, (1524), 1 states have return successors, (1524), 1524 states have call predecessors, (1524), 1524 states have call successors, (1524) [2023-12-25 13:30:34,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42633 states to 42633 states and 61641 transitions. [2023-12-25 13:30:34,263 INFO L78 Accepts]: Start accepts. Automaton has 42633 states and 61641 transitions. Word has length 972 [2023-12-25 13:30:34,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 13:30:34,263 INFO L495 AbstractCegarLoop]: Abstraction has 42633 states and 61641 transitions. [2023-12-25 13:30:34,263 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 75.41666666666667) internal successors, (905), 12 states have internal predecessors, (905), 5 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 5 states have call predecessors, (14), 5 states have call successors, (14) [2023-12-25 13:30:34,264 INFO L276 IsEmpty]: Start isEmpty. Operand 42633 states and 61641 transitions. [2023-12-25 13:30:34,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 973 [2023-12-25 13:30:34,316 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 13:30:34,332 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 13:30:34,350 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2023-12-25 13:30:34,532 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable95,17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-25 13:30:34,533 INFO L420 AbstractCegarLoop]: === Iteration 97 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 13:30:34,533 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 13:30:34,533 INFO L85 PathProgramCache]: Analyzing trace with hash 924855307, now seen corresponding path program 1 times [2023-12-25 13:30:34,533 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-25 13:30:34,533 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [133440314] [2023-12-25 13:30:34,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 13:30:34,534 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-25 13:30:44,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:30:46,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-25 13:30:46,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:30:46,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2023-12-25 13:30:46,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:30:46,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2023-12-25 13:30:46,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:30:46,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2023-12-25 13:30:46,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:30:46,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2023-12-25 13:30:46,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:30:46,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2023-12-25 13:30:46,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:30:46,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2023-12-25 13:30:46,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:30:46,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 669 [2023-12-25 13:30:46,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:30:46,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 684 [2023-12-25 13:30:46,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:30:46,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 705 [2023-12-25 13:30:46,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:30:46,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 723 [2023-12-25 13:30:46,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:30:46,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 735 [2023-12-25 13:30:46,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:30:46,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 749 [2023-12-25 13:30:46,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:30:46,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 763 [2023-12-25 13:30:46,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:30:46,759 INFO L134 CoverageAnalysis]: Checked inductivity of 647 backedges. 223 proven. 4 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2023-12-25 13:30:46,759 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-25 13:30:46,759 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [133440314] [2023-12-25 13:30:46,759 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [133440314] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-25 13:30:46,759 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1973353751] [2023-12-25 13:30:46,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 13:30:46,759 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-25 13:30:46,759 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-25 13:30:46,760 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-25 13:30:46,761 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2023-12-25 13:30:50,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:30:50,489 INFO L262 TraceCheckSpWp]: Trace formula consists of 5908 conjuncts, 127 conjunts are in the unsatisfiable core [2023-12-25 13:30:50,503 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 13:30:53,348 INFO L134 CoverageAnalysis]: Checked inductivity of 647 backedges. 195 proven. 88 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-25 13:30:53,348 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 13:30:57,798 INFO L134 CoverageAnalysis]: Checked inductivity of 647 backedges. 195 proven. 88 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-25 13:30:57,798 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1973353751] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 13:30:57,798 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-25 13:30:57,798 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 28, 22] total 52 [2023-12-25 13:30:57,798 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [761850658] [2023-12-25 13:30:57,798 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-25 13:30:57,799 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 52 states [2023-12-25 13:30:57,799 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-25 13:30:57,801 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 52 interpolants. [2023-12-25 13:30:57,801 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=249, Invalid=2403, Unknown=0, NotChecked=0, Total=2652 [2023-12-25 13:30:57,801 INFO L87 Difference]: Start difference. First operand 42633 states and 61641 transitions. Second operand has 52 states, 52 states have (on average 43.51923076923077) internal successors, (2263), 52 states have internal predecessors, (2263), 10 states have call successors, (38), 1 states have call predecessors, (38), 1 states have return successors, (38), 10 states have call predecessors, (38), 10 states have call successors, (38) Received shutdown request... [2023-12-25 13:33:25,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 665 states. [2023-12-25 13:33:25,059 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2637 GetRequests, 1927 SyntacticMatches, 0 SemanticMatches, 710 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 220562 ImplicationChecksByTransitivity, 58.3s TimeCoverageRelationStatistics Valid=50336, Invalid=455896, Unknown=0, NotChecked=0, Total=506232 [2023-12-25 13:33:25,059 INFO L413 NwaCegarLoop]: 1589 mSDtfsCounter, 93054 mSDsluCounter, 143376 mSDsCounter, 0 mSdLazyCounter, 71920 mSolverCounterSat, 668 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 45.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93054 SdHoareTripleChecker+Valid, 144965 SdHoareTripleChecker+Invalid, 72588 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.5s SdHoareTripleChecker+Time, 668 IncrementalHoareTripleChecker+Valid, 71920 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 52.0s IncrementalHoareTripleChecker+Time [2023-12-25 13:33:25,059 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [93054 Valid, 144965 Invalid, 72588 Unknown, 0 Unchecked, 0.5s Time], IncrementalHoareTripleChecker [668 Valid, 71920 Invalid, 0 Unknown, 0 Unchecked, 52.0s Time] [2023-12-25 13:33:25,060 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-25 13:33:25,074 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-25 13:33:25,074 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 [2023-12-25 13:33:25,081 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2023-12-25 13:33:25,274 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable96,18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-25 13:33:25,275 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was constructing difference of abstraction (42633states) and FLOYD_HOARE automaton (currently 665 states, 52 states before enhancement),while ReachableStatesComputation was computing reachable states (467115 states constructed, input type IntersectNwa). [2023-12-25 13:33:25,278 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 13:33:25,280 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-25 13:33:25,282 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.12 01:33:25 BoogieIcfgContainer [2023-12-25 13:33:25,282 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-25 13:33:25,282 INFO L158 Benchmark]: Toolchain (without parser) took 792894.90ms. Allocated memory was 307.2MB in the beginning and 3.1GB in the end (delta: 2.8GB). Free memory was 257.6MB in the beginning and 1.7GB in the end (delta: -1.4GB). Peak memory consumption was 2.5GB. Max. memory is 8.0GB. [2023-12-25 13:33:25,282 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 227.5MB. Free memory is still 176.3MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-25 13:33:25,282 INFO L158 Benchmark]: CACSL2BoogieTranslator took 615.26ms. Allocated memory is still 307.2MB. Free memory was 257.3MB in the beginning and 232.9MB in the end (delta: 24.4MB). Peak memory consumption was 45.8MB. Max. memory is 8.0GB. [2023-12-25 13:33:25,283 INFO L158 Benchmark]: Boogie Procedure Inliner took 380.92ms. Allocated memory was 307.2MB in the beginning and 546.3MB in the end (delta: 239.1MB). Free memory was 232.9MB in the beginning and 441.8MB in the end (delta: -208.9MB). Peak memory consumption was 115.7MB. Max. memory is 8.0GB. [2023-12-25 13:33:25,283 INFO L158 Benchmark]: Boogie Preprocessor took 475.01ms. Allocated memory is still 546.3MB. Free memory was 441.8MB in the beginning and 415.0MB in the end (delta: 26.7MB). Peak memory consumption was 61.9MB. Max. memory is 8.0GB. [2023-12-25 13:33:25,283 INFO L158 Benchmark]: RCFGBuilder took 2380.94ms. Allocated memory was 546.3MB in the beginning and 826.3MB in the end (delta: 280.0MB). Free memory was 415.0MB in the beginning and 521.3MB in the end (delta: -106.3MB). Peak memory consumption was 179.8MB. Max. memory is 8.0GB. [2023-12-25 13:33:25,283 INFO L158 Benchmark]: TraceAbstraction took 789037.63ms. Allocated memory was 826.3MB in the beginning and 3.1GB in the end (delta: 2.2GB). Free memory was 520.8MB in the beginning and 1.7GB in the end (delta: -1.1GB). Peak memory consumption was 2.3GB. Max. memory is 8.0GB. [2023-12-25 13:33:25,283 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 227.5MB. Free memory is still 176.3MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 615.26ms. Allocated memory is still 307.2MB. Free memory was 257.3MB in the beginning and 232.9MB in the end (delta: 24.4MB). Peak memory consumption was 45.8MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 380.92ms. Allocated memory was 307.2MB in the beginning and 546.3MB in the end (delta: 239.1MB). Free memory was 232.9MB in the beginning and 441.8MB in the end (delta: -208.9MB). Peak memory consumption was 115.7MB. Max. memory is 8.0GB. * Boogie Preprocessor took 475.01ms. Allocated memory is still 546.3MB. Free memory was 441.8MB in the beginning and 415.0MB in the end (delta: 26.7MB). Peak memory consumption was 61.9MB. Max. memory is 8.0GB. * RCFGBuilder took 2380.94ms. Allocated memory was 546.3MB in the beginning and 826.3MB in the end (delta: 280.0MB). Free memory was 415.0MB in the beginning and 521.3MB in the end (delta: -106.3MB). Peak memory consumption was 179.8MB. Max. memory is 8.0GB. * TraceAbstraction took 789037.63ms. Allocated memory was 826.3MB in the beginning and 3.1GB in the end (delta: 2.2GB). Free memory was 520.8MB in the beginning and 1.7GB in the end (delta: -1.1GB). Peak memory consumption was 2.3GB. 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: 21]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 21). Cancelled while NwaCegarLoop was constructing difference of abstraction (42633states) and FLOYD_HOARE automaton (currently 665 states, 52 states before enhancement),while ReachableStatesComputation was computing reachable states (467115 states constructed, input type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 875 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 789.0s, OverallIterations: 97, TraceHistogramMax: 14, PathProgramHistogramMax: 1, EmptinessCheckTime: 1.0s, AutomataDifference: 374.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 565236 SdHoareTripleChecker+Valid, 129.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 564839 mSDsluCounter, 932868 SdHoareTripleChecker+Invalid, 111.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 770696 mSDsCounter, 2788 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 219647 IncrementalHoareTripleChecker+Invalid, 222435 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2788 mSolverCounterUnsat, 162172 mSDtfsCounter, 219647 mSolverCounterSat, 2.4s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 26990 GetRequests, 24263 SyntacticMatches, 2 SemanticMatches, 2725 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 964442 ImplicationChecksByTransitivity, 133.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=42633occurred in iteration=96, InterpolantAutomatonStates: 1824, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 28.3s AutomataMinimizationTime, 96 MinimizatonAttempts, 774424 StatesRemovedByMinimization, 43 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 5.6s SsaConstructionTime, 237.3s SatisfiabilityAnalysisTime, 132.0s InterpolantComputationTime, 81137 NumberOfCodeBlocks, 81137 NumberOfCodeBlocksAsserted, 114 NumberOfCheckSat, 86843 ConstructedInterpolants, 0 QuantifiedInterpolants, 388095 SizeOfPredicates, 199 NumberOfNonLiveVariables, 100188 ConjunctsInSsa, 614 ConjunctsInUnsatCore, 120 InterpolantComputations, 94 PerfectInterpolantSequences, 48478/49218 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